Abstract

ttbtb1tb2tb2) defining a z-direction that is orthogonal to said x-direction, and at least one refrigerant distribution layer (30,130,150) located above at least one bundle (20,120, 140) of heat exchanger tubes (21,121,141), said at least one refrigerant distribution layer (30,130,150) comprising perforated pipes (31,131,151) which have holes (133a.1,133a.2, 133a.3,133a.4,133a.5,133a.6,133a.7) for emitting refrigerant towards the bundle (20,120,140) of heat exchanger tubes (21, 121,141) above which said refrigerant distribution layer (30, 130,150) is located, wherein at least some of said perforated pipes (31,131,151) have a longitudinal axis defining a horizontal y-direction that is orthogonal to the x-direction defined by said heat exchanger tubes (21,121,141) and wherein perforations of the perforated pipes (31,131,151) having a longitudinal y-direction that is orthogonal to the x-direction defined by said heat exchanger tubes are formed by holes (133a.1,133a.2,133a.3,133a.4,25 133a.5,133a.6,133a.7) that are arranged in sets (133a,133b, 133c,133d), wherein each set (133a,133b,133c,133d) of holes is arranged on a circumference lying on a vertical xz-plane that passes through a heat exchanger tube (21,121, 141) of the bundle (20,120,140) and located above a respective heat exchanger30 tube (121a.1,121a.2,121b.1,121b.2,141a.1,141a.2,141b.1,141b.2) of said bundle (20,120,140) of heat exchanger tubes (21,121, 141).

IPC Classes  ?

• B01D 1/00 - Evaporating
• B01D 1/16 - Evaporating by spraying
• F28F 25/06 - Spray nozzles or spray pipes
• F28D 3/02 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium flows in a continuous film, or trickles freely, over the conduits with tubular conduits
• B01D 1/04 - Evaporators with horizontal tubes
• F28D 3/04 - Distributing arrangements
• F28D 5/02 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation in which the evaporating medium flows in a continuous film or trickles freely over the conduits
• F28D 7/16 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
• F28D 21/00 - Heat-exchange apparatus not covered by any of the groups

Goods & Services

Compressors, in particular refrigerant compressors; mixing machines; oil separators; current generators; expansion machines; mechanical installations for operating steam turbines or steam engines with organic working fluids (organic rankine cycle installations); refrigerant condensers; condensing units (parts of machines, included in this class) consisting of refrigerant compressors, condensers and liquid collectors; power generation installations using waste heat; parts for the aforesaid goods. Chilling machines; cooling installations; refrigerating machines; refrigerated transport assemblies; multi-compressor refrigeration installations comprising a number of compressors; air-conditioning apparatus; air-conditioning installations; evaporators; refrigerant liquid collectors; separators for purifying refrigerants; heat exchangers, other than parts of machines; heat pumps; heat recovery installations; parts of the aforesaid goods. Installation, repair, maintenance and servicing in relation to the following goods: compactors, liquifiers, chilling machines, cooling installations, refrigerating machines, refrigerated transport assemblies, multi-compressor refrigeration systems, airconditioning apparatus, air conditioning installations, refrigerant condensers, vaporizers, heat exchangers, heat pumps, refrigerant liquid collectors, expansion machines, current generators, parts and accessories for the aforementioned goods; consultancy and information in relation to the aforesaid services, included in this class.

Abstract

Machine for expanding or compressing compressible media, comprising a machine casing (10), at least one screw rotor (36,38) which is arranged in a screw rotor bore (32,34) in the machine casing and which extends between a low-pressure side (62) and a high-pressure side (64) of the screw rotor bore and which cooperates with the compressible medium, wherein by rotating about a screw rotor axis the at least one screw rotor (36,38) conveys the substantially gaseous medium either from the low-pressure side (62) to the high pressure side (64) by compressing it, or from the high-pressure side to the low pressure side by expanding it, wherein a motor generator unit (132) is coupled or couplable to the at least one screw rotor, wherein the at least one screw rotor is axially supported by a lubricant support film (210) provided between an end wall surface (126,128) of said screw rotor bore (32,34) and a high-pressure end face (122,124) of said at least one screw rotor (36,38) in order to prevent contact.

IPC Classes  ?

• F01C 1/16 - Rotary-piston machines or engines of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
• F04C 18/16 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
• F04C 29/02 - LubricationLubricant separation
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Goods & Services

Compressors, in particular refrigerant compressors; mixing machines; oil separators; current generators; expansion machines; mechanical installations for operating steam turbines or steam engines with organic working fluids (organic rankine cycle installations); refrigerant condensers; condensing units (parts of machines, included in this class) consisting of refrigerant compressors, condensers and liquid collectors; power generation installations using waste heat; parts for the aforesaid goods. Chilling machines; cooling installations; refrigerating machines; refrigerated transport assemblies; multi-compressor refrigeration installations comprising a number of compressors; air-conditioning apparatus; air-conditioning installations; evaporators; refrigerant liquid collectors; separators for purifying refrigerants; heat exchangers, other than parts of machines; heat pumps; heat recovery installations; parts of the aforesaid goods. Installation, repair, maintenance and servicing in relation to the following goods: compactors, liquifiers, chilling machines, cooling installations, refrigerating machines, refrigerated transport assemblies, multi-compressor refrigeration systems, airconditioning apparatus, air conditioning installations, refrigerant condensers, vaporizers, heat exchangers, heat pumps, refrigerant liquid collectors, expansion machines, current generators, parts and accessories for the aforementioned goods; consultancy and information in relation to the aforesaid services, included in this class.

Goods & Services

Compressors, in particular refrigerant compressors; mixing machines; oil separators; current generators; expansion machines; mechanical installations for operating steam turbines or steam engines with organic working fluids (organic rankine cycle installations); refrigerant condensers; condensing units (parts of machines, included in this class) consisting of refrigerant compressors, condensers and liquid collectors; installations for power generation using waste heat; parts for the aforesaid goods. Chilling machines; cooling installations; refrigerating machines; refrigerated transport assemblies; multi-compressor refrigeration installations comprising a number of compressors; air-conditioning apparatus; air-conditioning installations; evaporators; refrigerant liquid collectors being apparatus or appliances for refrigerating, cooling, air-conditioning or heating; separators for purifying refrigerants; heat exchangers, other than parts of machines; heat pumps; heat recovery installations; parts of the aforesaid goods. Installation, repair, maintenance and servicing in relation to the following goods: compactors, liquifiers, chilling machines, cooling installations, refrigerating machines, refrigerated transport assemblies, multi-compressor refrigeration systems, airconditioning apparatus, air conditioning installations, refrigerant condensers, vaporizers, heat exchangers, heat pumps, refrigerant liquid collectors, expansion machines, current generators, parts and accessories for the aforementioned goods; consultancy and information in relation to the aforesaid services, included in this class.

Goods & Services

Compressors, in particular refrigerant compressors; Mixing machines; Oil separators; Current generators; Expansion machines; Mechanical installations for operating steam turbines or steam engines with organic working fluids (organic Rankine Cycle installations); Parts for the aforesaid goods. Chilling machines; Cooling installations; Refrigerating machines; Refrigerated transport assemblies; Multi-compressor refrigeration installations comprising a number of compressors; Air-conditioning apparatus; Air-conditioning installations; Refrigerant condensers; Evaporators; Condensing units (parts of machines, included in class 11) consisting of refrigerant compressors, condensers and liquid collectors; Refrigerant liquid collectors; Separators for purifying refrigerants; Heat exchangers, other than parts of machines; Heat pumps; Heat recovery installations; Installations for waste heat utilisation; Parts of the aforesaid goods. Installation, repair, Maintenance and servicing in relation to the following goods: Compactors, Liquifiers, Chilling machines, Cooling installations, Refrigerating machines, Refrigerated transport assemblies, multi-compressor refrigeration systems, Airconditioning apparatus, Air conditioning installations, Refrigerant condensers, vaporizers, Heat exchangers, Heat pumps, Refrigerant liquid collectors, Expansion machines, Current generators, parts and accessories for the aforementioned goods; Consultancy and information in relation to the aforesaid services, included in this class.

Abstract

A scroll compressor is provided, the scroll compressor comprises two scroll bodies, one of the two scroll bodies is a stationary scroll body with a scroll wrap and the other scroll body of the two scroll bodies is a moveable scroll body with a scroll wrap, the scroll wraps of the two scroll bodies engage each other forming at least one compression chamber, and the stationary scroll body comprises a base plate and the stationary scroll body has two opposing sides with respect to the base plate and on a first side of the two opposing sides the scroll wrap of the stationary scroll body is arranged and on a second side of the two opposing sides at least one pressure pocket is formed and at least one vent passage is provided through the base plate from the first side to the second side, the vent passage opens at the second side into the at least one pressure pocket and the vent passage has an opening at the first side which is arranged such that the vent passage is fluidly connected to the at least one compression chamber during a compression cycle of the at least one compression chamber at least during a time span before the at least one compression chamber is fluidly connected to a discharge chamber of the scroll compressor and at least during a time span of the period when the at least one compression chamber is fluidly connected to the discharge chamber.

IPC Classes  ?

• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• F04C 28/26 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves using bypass channels

Goods & Services

Compressors, in particular refrigerant compressors; Mixing machines; Oil separators; Current generators; Expansion machines; Mechanical installations for operating steam turbines or steam engines with organic working fluids (organic Rankine Cycle installations); Parts for the aforesaid goods. Chilling machines; Cooling installations; Refrigerating machines; Refrigerated transport assemblies; Multi-compressor refrigeration installations comprising a number of compressors; Air-conditioning apparatus; Air-conditioning installations; Refrigerant condensers; Evaporators; Condensing units (parts of machines, included in class 11) consisting of refrigerant compressors, condensers and liquid collectors; Refrigerant liquid collectors; Separators for purifying refrigerants; Heat exchangers, other than parts of machines; Heat pumps; Heat recovery installations; Installations for waste heat utilisation; Parts of the aforesaid goods. Installation, repair, Maintenance and servicing in relation to the following goods: Compactors, Liquifiers, Chilling machines, Cooling installations, Refrigerating machines, Refrigerated transport assemblies, multi-compressor refrigeration systems, Airconditioning apparatus, Air conditioning installations, Refrigerant condensers, vaporizers, Heat exchangers, Heat pumps, Refrigerant liquid collectors, Expansion machines, Current generators, parts and accessories for the aforementioned goods; Consultancy and information in relation to the aforesaid services, included in this class.

Abstract

The present invention relates to a separator device (1), in particular a lubricating-medium separator device, for the separation of a liquid phase of a second medium L, in particular a lubricating medium, from a mixture with a gaseous phase of a first medium (G), in particular a refrigerant, comprising a housing (10) which configures a cyclone chamber (20), is arranged along a centre axis (Z), and has an upper end region (11) and a lower end region (12) on opposite sides in relation to the centre axis (Z), a dip pipe (40), and flow guide means (28) for forming a helical flow in the cyclone chamber (20) about the centre axis (Z), wherein an inlet (21) into the cyclone chamber (20) for the mixture of the first and second medium is provided in the upper end region (11), and a first outlet (22) for the first medium (G) and a second outlet (23) for the separated second medium L are provided in the lower end region (12), wherein the dip pipe (40) protrudes from the lower end region (12) in the centre axis (Z) into the cyclone chamber (20) and is connected fluidically to the first outlet (22) and forms a first recess (50) between the housing (10) and the dip pipe (40), and wherein the separated second medium (L) can flow through the second outlet (23) out of the first recess (50) in the lower end region (22). Furthermore, the present invention relates to a compressor, in particular a refrigerant compressor, and to a refrigeration system.

IPC Classes  ?

• B01D 45/12 - Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
• B04C 5/13 - Construction of the overflow ducting, e.g. diffusing or spiral exits formed as a vortex finder and extending into the vortex chamberDischarge from vortex finder otherwise than at the top of the cycloneDevices for controlling the overflow
• F25B 41/00 - Fluid-circulation arrangements
• F25B 43/00 - Arrangements for separating or purifying gases or liquidsArrangements for vaporising the residuum of liquid refrigerant, e.g. by heat

Abstract

A scroll compressor is provided, the scroll compressor comprises two scroll bodies each having a scroll rib and the scroll ribs engage each other to form at least one compression chamber, and the scroll compressor further comprises a drive shaft for driving a moveable scroll body of the two scroll bodies, wherein the moveable scroll body comprises a base plate which has two opposing sides, wherein on a first side of the two opposing sides the scroll rib is arranged and on a second side of the two opposing sides a hub is arranged, the hub comprising a receiving portion for a drive section of the drive shaft, and wherein the moveable scroll body comprises at least one passage from an interior of the receiving portion to a hub environment located around the hub at the second side of the two opposing sides.

IPC Classes  ?

• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
• F04C 29/02 - LubricationLubricant separation

Abstract

The present invention relates to a scroll compressor or expander, comprising a first spiral unit (120) having at least one spiral rib (130) forming at least one spiral channel (140) with an inner and an outer end region (142, 144), and a second spiral unit (220) having at least one spiral rib (230) forming at least one spiral channel (240) with an inner and an outer end region (142, 144), wherein: the at least one spiral rib (130) of the first spiral unit (120) and the at least one spiral rib (230) of the second spiral unit (220) interlock to form pressure chambers (40); the first spiral unit (120) is rotatable about a first centre axis (X1), and the second spiral unit (220) is rotatable about a second centre axis (X2); the first centre axis (X1) and the second centre axis (X2) are spaced apart in a crank radius (δ); a transmission unit (60) rotationally couples the first spiral unit (120) and the second spiral unit (220); and the second centre axis (X2) can be guided about the first centre axis (X1) in an orbit (O).

IPC Classes  ?

• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluidsPumping installations specially adapted for elastic fluidsMulti-stage pumps specially adapted for elastic fluids
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Abstract

In order to improve a method for operating status determination of a coolant compressor/expander comprising a compressor unit and a drive unit such that information on the operating status of a coolant compressor/expander which is as reliable as possible can be obtained, according to the invention, for at least one bearing of the coolant compressor/expander, a load value resulting from an operation of said coolant compressor/expander and a speed value are determined and, on the basis of the speed value and the load value and at least one operating parameter, an operating prediction value for a future maintenance-free operation of the coolant compressor/expander is determined for the at least one bearing.

IPC Classes  ?

• F04C 28/28 - Safety arrangementsMonitoring
• F04B 49/00 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups

Goods & Services

(1) Compressors for heating, ventilation, air conditioning, and refrigeration machines; electric compressors; gas compressors; rotary compressors; axial compressors; centrifugal compressors; scroll compressors; mixed-flow compressors; piston compressors; screw compressors.

Abstract

The invention relates to a coolant compressor (12) for refrigeration systems, comprising an electric motor (60), at least two cylinder banks (42) and a mechanical power control unit (70) for activating and deactivating at least one of the cylinder banks (42), in order to activate or deactivate their coolant output, wherein, for operation in part-load states, the coolant compressor (12) can be operated in at least two different operating modes (B), each of which provides a different activation or deactivation of the cylinder banks (12) from the other operating modes, wherein the coolant compressor (12) is assigned a frequency converter (132) for controlling the rotational speed of the electric motor (60), wherein the coolant compressor (12) is assigned an operating state controller (130), which operates the coolant compressor (12), according to a power request signal associated with said operating state controller for the operation of the coolant compressor (12) in the part-load state corresponding with said power request signal (LA), in an operating mode selected from at least two different operating modes (B) and at a rotational speed adapted to the selected operating mode in order to achieve this part-load state.

IPC Classes  ?

• F04B 49/20 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by changing the driving speed
• F04B 49/06 - Control using electricity
• F04B 27/04 - Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
• F04B 27/053 - Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with an actuating element at the inner ends of the cylinders
• F04B 27/067 - Control
• F04B 49/03 - Stopping, starting, unloading or idling control by means of valves
• F04B 49/035 - Bypassing

Abstract

The invention relates to a machine for expanding or compressing substantially gaseous media, comprising: a machine housing (10); at least one screw rotor (36, 38), which is arranged in the machine housing in a screw rotor bore (52, 54), extends between a low-pressure side (62) and a high-pressure side (64) of the screw rotor bore, interacts with the substantially gaseous medium and is mounted in the machine housing by means of a bearing set (92, 94, 96, 98) on both sides; and a motor/generator unit (132), which is coupled or can be coupled to the at least one screw rotor. The machine is improved according to the invention in that the at least one screw rotor is provided with at least one axial support bearing (212, 214), which axially supports the at least one screw rotor such that a high-pressure-side end face (122, 124) of the at least one screw rotor is guided in a contactless manner to an end wall (126, 128), facing said end face, of the machine housing accommodating the at least one screw rotor.

IPC Classes  ?

• F02C 3/055 - Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor the compressor being of the positive-displacement type
• F02C 7/06 - Arrangement of bearingsLubricating
• F04C 18/16 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type

Abstract

According to the invention, to improve an expansion system (30) for producing electrical energy from heat, by means of a thermodynamic cycle, comprising an expansion device (32), operated by an expanding work medium of the thermodynamic cycle, and a generator (34), which is driven by the expansion device, the expansion system has a speed sensor (120), which is coupled to a shaft (98) of the expansion system, said shaft rotating proportionally to a rotor of the generator, and which is formed as an electrical sensor generator (122), which generates an electrical sensor signal.

IPC Classes  ?

• F02C 1/10 - Closed cycles
• G01P 3/44 - Devices characterised by the use of electric or magnetic means for measuring angular speed

Abstract

The invention relates to a refrigerant circuit (10), comprising at least one refrigerant compressor (12) which compresses cold medium supplied to a suction connection to high pressure, so that a compressor mass flow of the refrigerant compressed to high pressure exits at a pressure connection, at least one high pressure-side, heat-emitting heat exchanger (22) with an inlet, to which the refrigerant circuit feeds the compressor mass flow, and with an outlet, from which a cooled total mass flow of refrigerant exits, at least one expansion unit (32), at least one cooling stage (62) having at least one heat-receiving heat exchanger, wherein the refrigerant circuit supplies a main mass flow, which is included in the expansion pressure mass flow expanded by the expansion unit, to the heat exchanger, and a working condition adaptation unit (230) associated with the refrigerant circuit.

IPC Classes  ?

• F25B 11/02 - Compression machines, plants or systems, using turbines, e.g. gas turbines as expanders
• F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems

Abstract

The invention relates to a refrigerant circuit (10) comprising: at least one refrigerant compressor (12) which compresses refrigerant fed at a suction connection to high pressure such that a compressor mass flow of the refrigerant compressed to high pressure exits at a pressure connection; at least one heat-emitting heat exchanger (22) on the high-pressure side, having an inlet to which the refrigerant circuit feeds the compressor mass flow and having an outlet from which a cooled total mass flow of refrigerant exits; at least one expansion unit (32); and at least one cooling stage (62) having at least one heat-absorbing heat exchanger to which the refrigerant circuit feeds a main mass flow comprising an expansion pressure mass flow expanded by the expansion unit. The invention also relates to an emergency operation unit (230) associated with the refrigerant circuit.

IPC Classes  ?

• F25B 11/02 - Compression machines, plants or systems, using turbines, e.g. gas turbines as expanders
• F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems

Abstract

The invention relates to a compressor comprising a compressor housing (12), a scroll compressor unit (22) which is arranged in the compressor housing (12) and has a first stationarily arranged compressor body (24) and a second compressor body (26) that is movably arranged relative to the stationarily arranged compressor body (24), an eccentric drive (242) for the scroll compressor unit (22), said eccentric drive having a driver (246) which is driven by a drive motor (222) and circulates about the central axis (44) of a drive shaft (228) on the orbital path (48), and an orbital path balancing mass (252) which counteracts an imbalance due to the compressor body (26) moving on the orbital path (48). The aim of the invention is to improve such a compressor such that the long-term stability of the guidance of the driver (246) in the driver receptacle can be ensured even at high rotational speeds. This is achieved in that the orbital balancing mass (252) is coupled to the eccentric drive (242) in such a way that said balancing mass moves on the orbital path (48) in a manner corresponding to the movement of the driver (246), but is decoupled with respect to the transmission of tilting moments to the driver, and that driver and orbital balancing mass can be effective in a state coupling the centrifugal force and in a state decoupling the centrifugal force.

IPC Classes  ?

• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents

Goods & Services

Generators; generating plant; compressors, in particular refrigerant compressors; condensers [machines]; oil separators; mufflers (parts of machines); valves for machines; valves for engines; power operated valves; valves operated by changes in pressure; clack valves [parts of machines]; machines for power generation; expansion machines [steam engines]; power generators and systems consisting thereof based on the organic rankine cycle technology; pumps; parts of the aforesaid goods. Measuring apparatus; sensors and detectors; measuring, detecting and monitoring instruments, indicators and controllers; controllers [regulators]; frequency inverters; electric control valves; solenoid valves; electronic diagnostic and motor protection devices, apparatus, modules and instruments for generators, compressors, machines for power generation, expansion machines and organic rankine cycle systems; communication apparatus; computer software; electronic publications [downloadable]; electronic publications recorded on computer media; electronic databases. Refrigerant condensers; evaporators; liquid collectors for refrigerants; separators for the purification of refrigerants; heat exchangers; valves for heat recovery units; heat recovery units; waste heat utilization units; parts of the aforesaid goods. Advertising; drafting and publication of publicity texts; marketing; market research; public relations services; business consultancy and advisory services; mediation of trade business for third parties; retail and wholesale services relating to generators, compressors, condensers, liquid collectors for refrigerants, expansion machines, machines for power generation, organic rankine cycle systems and parts and accessories of the aforesaid goods; sponsorship [promotion and marketing services]; compilation and systemization of information into computer databases; collection, processing and output of data in computer databases; updating and maintenance of data in computer databases; computerized management of databases [administrative services]; computerized data management. Installation, repair, maintenance and servicing of generators, compressors, condensers, liquid collectors for refrigerants, expansion machines, machines for power generation, organic rankine cycle systems and parts and accessories of the aforesaid goods; consultancy and information in relation to the aforesaid services, as far as included in this class. Provision of training and education; arranging and conducting of training events; conducting of courses, seminars and workshops; arranging and conducting of conferences, congresses and symposiums; publishing services; providing electronic publications. Scientific and technological services; engineering services; IT programming services; information technology [IT] engineering; information technology [IT] consultancy services; technical testing and certification [quality control]; engineering design and consultancy; technical testing services; provision of surveys [technical]; technical supervision and inspection; services for monitoring industrial processes; monitoring of computer systems by remote access; product development; product design; product testing; software development, programming and implementation; design, maintenance and updating of computer software; consultancy and information in relation to the aforesaid services, as far as included in this class.

Abstract

A refrigeration system, in particular a transport refrigeration system, comprising a refrigeration circuit, in particular one that operates using CO2 as the refrigerant, in which a total mass flow of the refrigerant is conveyed; a heat exchanger arranged in the refrigerant circuit and cooling, on the high-pressure side, refrigerant compressed to high pressure; at least one cooling stage which expands the principal mass flow from the intermediate pressure manifold to a low pressure in at least one cooling expansion member, and in so doing makes refrigeration power available at a low-pressure-side heat exchanger; and a refrigerant compressor unit that compresses the principal mass flow from a low pressure to a high pressure, wherein the refrigerant compressor unit has a first compressor stage for compressing, to an intermediate pressure, the refrigerant of the principal mass flow supplied at low pressure, and a second compressor stage for compressing, to a high pressure, the refrigerant of the principal mass flow that has been compressed to an intermediate pressure.

IPC Classes  ?

• F25B 9/00 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
• F25B 1/10 - Compression machines, plants or systems with non-reversible cycle with multi-stage compression
• F25B 1/02 - Compression machines, plants or systems with non-reversible cycle with compressor of reciprocating-piston type
• F25B 31/00 - Compressor arrangements
• F04B 25/00 - Multi-stage pumps specially adapted for elastic fluids

Goods & Services

(1) Compressors, in particular refrigerant compressors, and parts thereof; oil separators, and parts thereof; mufflers (parts of machines), namely, mufflers for discharge gas lines in refrigeration plants, and parts thereof; valves for machines, and parts thereof; valves for engines, and parts thereof; clack valves [parts of machines] , and parts thereof; machines for power generation, namely, electric power generators, and parts thereof; expansion machines [steam engines], namely, machines for power generation through expansion of pressurized fluids, and parts thereof; Organic Rankine Cycle electric power generators, and parts thereof; pumps as parts of machines, motors and engines; hydraulic pumps, pneumatic pumps, and parts thereof (2) Measuring apparatus, namely, temperature sensors, pressure sensors, flow meters, tachometers; sensors and detectors, namely, pressure, temperature, and fluid sensors; measuring, detecting and monitoring instruments, indicators and controllers, namely, electrical control systems for generators, power generators, and electric generators; controllers [regulators], namely, temperature regulators, voltage regulators; frequency inverters for heating, ventilation, air conditioning, and refrigeration machines; electric control valves for electric power generators; solenoid valves; electronic diagnostic and motor protection devices, apparatus, modules and instruments for compressors, namely, electrical control and diagnostic systems for heating, ventilation, air conditioning, and refrigeration machines, communication apparatus, namely, computer hardware for telecommunication with remote cooling, refrigeration, air conditioning and heating equipment, and with electric power generators; computer software for setup, configuration, monitoring, and troubleshooting of heating, ventilation, air conditioning, and refrigeration machines and of electric power generators; downloadable electronic publications in the nature of brochures, manuals, and informational sheets in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation; downloadable electronic publications recorded on computer media in the nature of brochures, manuals, and informational sheets in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation; power operated valves, namely, solenoid-operated valves, and parts thereof; valves operated by changes in pressure, namely, pressure relief valves, and parts thereof (3) Refrigerant condensers, and parts thereof; cooling evaporators, and parts thereof; refrigerant accumulators, and parts thereof; separators for the purification of refrigerants, and parts thereof; heat exchangers, and parts thereof; valves for heat recovery units, and parts thereof; heat recovery units, and parts thereof; waste heat utilization units, and parts thereof; condensers [machines], namely, refrigeration condensers, and parts thereof (1) Advertising the goods and services of others; drafting and publication of publicity texts; market research; public relations services; business management consultancy and advisory services; mediation of trade business for third parties; retail and wholesale services in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation, relating to generators, compressors, condensers, liquid collectors for refrigerants, expansion machines, machines for power generation, organic rankine cycle systems and parts and accessories of the aforesaid goods; compilation and systemization of information into computer databases; collection, processing and output of data in computer databases in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; updating and maintenance of data in computer databases; computerized management of databases [administrative services]; computerized data file management. (2) Installation, repair, maintenance and servicing of generators, compressors, condensers, liquid collectors for refrigerants, expansion machines, namely, machines for power generation through expansion of pressurized fluids, machines for power generation, organic rankine cycle electric power generators and parts and accessories of the aforesaid goods, all in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation (3) Provision of training and education in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation; arranging and conducting of training events, conducting of courses, seminars and workshops in the field of heating, ventilation, air conditioning, and refrigeration, and electrical power generation; arranging and conducting of conferences, congresses and symposiums in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation; providing electronic publications, namely, brochures, manuals, and informational sheets, in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation (4) Technological consultancy services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; engineering services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; IT programming services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; information technology [IT] engineering in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; information technology [IT] consultancy services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; technical testing, certification, and quality control services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; engineering design and consultancy namely, technical design and consultancy services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; technical testing services, namely, testing of heating, ventilation, air conditioning, and refrigeration machines, and of electric power generators; provision of surveys [technical], namely, technical surveying; technical supervision and inspection of heating, ventilation, air conditioning, and refrigeration machines, and of electric power generators; services for monitoring of heating, ventilation, air conditioning, and refrigeration machines, and of electric power generators; monitoring of computer systems by remote access; product development; product design of heating, ventilation, air conditioning, and refrigeration machines; product testing of heating, ventilation, air conditioning, and refrigeration machines; software development, programming and implementation; design, maintenance and updating of computer software

Goods & Services

Electricity generators; electrical power generators; compressors, in particular refrigerant compressors; refrigerant fluid condensers; oil separators; mufflers being parts of machines; valves being parts of machines; valves being parts of engines; power operated valves being parts of engines; valves operated by changes in pressure being parts of engines; clack valves being parts of machines; machines for power generation, namely, AC generators, auxiliary power units for supplying electrical power to heat and power generators, block type thermal power stations for power generation, current generators, electric generators, electric power generators for indoor use, electric power generators for ships, engines and motors for the generation of electricity, gas-operated power generators, mobile electric power generators; expansion machines in the nature of steam engines, not for land vehicles; power generators and systems consisting thereof based on the organic rankine cycle technology; pumps for machines, motors and engines; component parts of the aforesaid goods Sensors and detectors for sensing and detecting temperature, pressure, voltage, current, rotation, oil level, and refrigerant level in waste heat recovery devices and power generation equipment; measuring instruments for measuring temperature, pressure, voltage, current, rotation, oil level, and refrigerant level in waste heat recovery devices and power generation equipment; frequency inverters; electric control valves, namely, automatic valves; solenoid valves; electronic diagnostic and motor protection devices, apparatus, modules and instruments, namely, computer hardware, recorded software, and downloadable software for monitoring and diagnosing malfunctions in power generators, refrigerant compressors, machines for power generation, expansion machines in the nature of machines for power generation through expansion of pressurized fluids, and organic rankine cycle systems; apparatus for the transmission of communications; downloadable and recorded computer software in the field of waste heat recovery and power generation for controlling, evaluating, and monitoring equipment, for correcting equipment performance issues, for remote maintenance and service of equipment, and for machine-to-machine communication; downloadable electronic publications, namely, informational texts, journals and newsletters, in the field of waste heat recovery and power generation; electronic publications recorded on computer media, namely, informational texts, journals and newsletters, in the field of waste heat recovery and power generation; downloadable electronic databases in the field of waste heat recovery and power generation; electronic databases recorded on computer media in the field of waste heat recovery and power generation Refrigerant condensers; evaporators for chemical processing; coolant recovery systems comprised of liquid collectors for refrigerants; separators for the purification of refrigerants; heat exchangers other than parts of machines; valves for heat recovery units; heat recovery units, namely, heat accumulators and heat exchangers for power generation, not being parts of machines; waste heat utilization units, namely, heat accumulators and heat exchangers for power generation, not being parts of machines; component parts of the aforesaid goods Advertising; drafting and publication of publicity texts; marketing; market research; public relations services; business consultancy and advisory services; mediation of trade business for third parties; retail and wholesale distributorships in the field of power generators, refrigerant compressors, refrigerant condensers, liquid collectors for refrigerants, expansion machines in the nature of machines for power generation through expansion of pressurized fluids, machines for power generation, organic rankine cycle systems and parts and accessories of the aforesaid goods; promotional and marketing sponsorship services in the nature of promoting and marketing the goods of others; compilation and systemization of information into computer databases; database management, namely, collection, processing and output of data in computer databases; updating and maintenance of data in computer databases; administrative services in the nature of management of computerized databases Installation, repair, maintenance and servicing of power generators, refrigerant compressors, refrigerant condensers, and liquid collectors for refrigerants, expansion machines in the nature of machines for power generation through expansion of pressurized fluids, machines for power generation, organic rankine cycle systems and parts and accessories of the aforesaid goods; consultancy and information in relation to the aforesaid services Conducting of courses, seminars and workshops in the field of waste heat recovery and power generation; arranging and conducting of educational conferences, congresses and symposiums in the field of waste heat recovery and power generation; publishing services, namely, publishing printed publications in the field of waste heat recovery and power generation; providing online non-downloadable publications, namely, informational texts, journals and newsletters, in the field of waste heat recovery and power generation Scientific and technological services, namely, scientific research in the field of waste heat recovery and power generation; engineering services; information technology (IT) consultancy services; IT programming services, namely, computer programming; quality control services for others, namely, technical testing and certification; engineering design and consultancy; technical product functionality, product quality, and product safety testing services, namely, testing of waste heat recovery devices and power generation equipment; provision of technical surveys in the field of waste heat recovery and power generation; technical supervision and inspection of waste heat recovery devices and power generation equipment to ensure proper functioning; services for technical testing and monitoring industrial processes, namely, quality control testing services for industrial machinery, monitoring of waste heat recovery and power generation processes for quality assurance purposes, and inspection of waste heat recovery and power generation equipment for quality control, for others; monitoring of computer systems by remote access to ensure proper functioning; product development; new product design; product testing; software development, programming and implementation; design, maintenance and updating of computer software; consultancy and information in relation to the aforesaid services

Abstract

In order to improve a method for selecting a frequency converter for a refrigerant compressor unit, comprising a refrigerant compressor and an electric drive motor, in such a way that the frequency converter is selected to meet application-specific requirements, a working condition that is suitable for the operation of the refrigerant compressor unit is selected in a field of application of an application diagram of the refrigerant compressor; an operating frequency is selected for this selected working condition; and, from drive data, a working condition operating current value corresponding to the selected working condition and the selected operating frequency is determined for the operation of the refrigerant compressor unit.

IPC Classes  ?

• H02P 27/04 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
• H02P 23/00 - Arrangements or methods for the control of AC motors characterised by a control method other than vector control
• H02P 29/032 - Preventing damage to the motor, e.g. setting individual current limits for different drive conditions

Abstract

In order to improve safety in a refrigerant compressor system comprising a refrigerant compressor and an electric drive motor for driving the refrigerant compressor and, arranged in a protected manner in an interior of a control housing, an electronic control system comprising electric components or electronic power components for controlling the electric drive motor, according to the invention, during operation of the refrigerant compressor system with combustible refrigerant, the control housing is provided with a refrigerant diversion, which does not impair at least one protection criterion of the control housing, for discharging refrigerant which enters into the interior due to a refrigerant leakage, said refrigerant diversion causing the refrigerant entering into the interior due to the refrigerant leakage to pass out of the interior into the surroundings of the refrigerant compressor system.

IPC Classes  ?

• F24F 11/36 - Responding to malfunctions or emergencies to leakage of heat-exchange fluid
• F24F 11/89 - Arrangement or mounting of control or safety devices
• F24F 11/88 - Electrical aspects, e.g. circuits
• F24F 1/24 - Cooling of electric components
• F24F 13/22 - Means for preventing condensation or evacuating condensate

Abstract

The invention provides, in a cold generator comprising a refrigerant circuit, that the cold generator comprises a heat exchanger unit, in which a heat-emitting heat exchanger and a heat-absorbing heat exchanger are integrated, wherein the heat exchanger unit comprises a flow path layer set built up in a stacked construction; the invention further provides that at least one heat-emitting refrigerant flow path and at least one heat-absorbing second heat transport flow path are provided in order to form the heat-emitting heat exchanger in the flow path layer set, that a second heat transport medium guided in a second heat transport circuit may flow or does flow through the second heat transport flow path in a second heat transport circuit, that at least one heat-absorbing refrigerant flow path and at least one heat-emitting first heat transport flow path are provided to form the heat-absorbing heat exchanger in the flow path layer set, and that a first heat transport medium guided in a first heat transport circuit can flow or does flow through the first heat transport flow path.

IPC Classes  ?

• F28D 9/00 - Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
• B60H 1/32 - Cooling devices
• F25B 25/00 - Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups

Goods & Services

Generators; generating plant; compressors, in particular refrigerant compressors; condensers (machines); oil separators; mufflers (parts of machines); valves for machines; valves for engines; power operated valves; valves operated by changes in pressure; clack valves (parts of machines); machines for power generation; expansion machines (steam engines); power generators and systems consisting thereof based on the organic rankine cycle technology; pumps; parts of the aforesaid goods. Measuring apparatus; sensors and detectors; measuring, detecting and monitoring instruments, indicators and controllers; controllers (regulators); frequency inverters; electric control valves; solenoid valves; electronic diagnostic and motor protection devices, apparatus, modules and instruments for generators, compressors, machines for power generation, expansion machines and organic rankine cycle systems; communication apparatus; computer software; electronic publications (downloadable); electronic publications recorded on computer media; electronic databases. Refrigerant condensers; evaporators; liquid collectors for refrigerants; separators for the purification of refrigerants; heat exchangers; valves for heat recovery units; heat recovery units; waste heat utilization units; parts of the aforesaid goods. Advertising; drafting and publication of publicity texts; marketing; market research; public relations services; business consultancy and advisory services; mediation of trade business for third parties; retail and wholesale services relating to generators, compressors, condensers, liquid collectors for refrigerants, expansion machines, machines for power generation, organic rankine cycle systems and parts and accessories of the aforesaid goods; sponsorship [promotion and marketing services]; compilation and systemization of information into computer databases; collection, processing and output of data in computer databases; updating and maintenance of data in computer databases; computerized management of databases (administrative services); computerized data management. Installation, repair, maintenance and servicing of generators, compressors, condensers, liquid collectors for refrigerants, expansion machines, machines for power generation, organic rankine cycle systems and parts and accessories of the aforesaid goods; consultancy and information in relation to the aforesaid services, as far as included in this class. Provision of training and education; arranging and conducting of training events; conducting of courses, seminars and workshops; arranging and conducting of conferences, congresses and symposiums; publishing services; providing electronic publications. Scientific and technological services; engineering services; information technology [IT] consultancy services and IT programming services; technical testing and certification (quality control); engineering design and consultancy; technical testing services; provision of surveys [technical]; technical supervision and inspection (terms too vague in the opinion of the International Bureau – Rule 13 (2) (b) of the Common Regulations); quality control testing services for industrial machinery, process monitoring for quality assurance, inspection of goods for quality control; monitoring of computer systems by remote access; product development; product design; product testing; software development, programming and implementation; design, maintenance and updating of computer software; consultancy and information in relation to the aforesaid services, as far as included in this class.

Abstract

The invention relates to a screw compressor comprising a compressor housing (12) with a screw rotor chamber (18), two meshing screw rotors (26, 28) which are arranged in the screw rotor chamber and are mounted each on the compressor housing so as to be rotatable about respective screw rotor axes, and at least one control slide (52, 54) which is arranged in a compressor housing slide channel (56), the compression wall surfaces (62, 64) of which adjoin both screw rotors (26, 28), and which can be moved in a slide direction (72) parallel to the screw rotor axes, is rigidly connected to a piston rod (118) that leads to a cylinder assembly (112) for moving the at least one control slide, and is guided relative to the compressor housing by means of a guide insert (172) that movably receives the piston rod (118) in the slide direction (112), wherein the piston rod (112) is guided transversely to the slide direction in the guide insert (172) in an elastically resilient manner by means of a guide element (242, 276, 278, 292).

IPC Classes  ?

• F04C 18/16 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
• F04C 28/12 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves

Goods & Services

Generators; Generating plant; Compressors, in particular refrigerant compressors; Condensers (machines); Oil separators; Mufflers (parts of machines); Valves for machines; Valves for engines; Power operated valves; Valves operated by changes in pressure; Clack valves (parts of machines); Machines for power generation; Expansion machines; Organic Rankine Cycle systems; Pumps; Liquid collectors for refrigerants; Parts of the aforesaid goods. Measuring apparatus; Sensors and detectors; Measuring, detecting and monitoring instruments, indicators and controllers; Controllers (regulators); Frequency inverters; Electric control valves; Solenoid valves; Electronic diagnostic and motor protection devices, apparatus, modules and instruments for generators, compressors, machines for power generation, expansion machines and Organic Rankine Cycle systems; Communication apparatus; Computer software; Electronic publications (downloadable); Electronic publications recorded on computer media; Electronic databases. Refrigerant condensers; Evaporators; Separators for purifying liquid and gaseous refrigerants; Heat exchangers; Valves for heat recovery units; Heat recovery units; Waste heat utilization units; Parts of the aforesaid goods. Advertising; Drafting and publication of publicity texts; Marketing; Market research; Public relations services; Business consultancy and advisory services; Mediation of trade business for third parties; Retail and wholesale services relating to generators, compressors, condensers, liquid collectors for refrigerants, expansion machines, machines for power generation, Organic Rankine Cycle systems and parts and accessories of the aforesaid goods; Promotional sponsorship; Compilation and systemization of information into computer databases; Collection, processing and output of data in computer databases; Updating and maintenance of data in computer databases; Computerized management of databases (administrative services); Computerized data management. Installation, repair, maintenance and servicing of generators, compressors, condensers, liquid collectors for refrigerants, expansion machines, machines for power generation, Organic Rankine Cycle systems and parts and accessories of the aforesaid goods; Consultancy and information in relation to the aforesaid services, as far as included in this class. Provision of training and education; Arranging and conducting of training events, conducting of courses, seminars and workshops; Arranging and conducting of conferences, congresses and symposiums; Publishing services; Providing electronic publications. Science and technology services; Engineering services; IT services; Technical testing and certification (quality control); Engineering design and consultancy; Technical testing services; Provision of surveys [technical]; Technical supervision and inspection; Services for monitoring industrial processes; Monitoring of computer systems by remote access; Product development; Product design; Product testing; Software development, programming and implementation; Design, maintenance and up-dating of computer software; Consultancy and information in relation to the aforesaid services, as far as included in this class.

Goods & Services

(1) Compressors, in particular refrigerant compressors, and parts thereof; condensers [machines], namely, refrigeration condensers, and parts thereof; oil separators, and parts thereof; mufflers (parts of machines), namely, mufflers for discharge gas lines in refrigeration plants, and parts thereof; valves for machines, and parts thereof; valves for engines, and parts thereof; clack valves being parts of machines, and parts thereof; machines for power generation, namely, electric power generators, and parts thereof; expansion machines [steam engines], namely, machines for power generation through expansion of pressurized fluids, and parts thereof; Organic Rankine Cycle electric power generators, and parts thereof; pumps as parts of machines, motors and engines; hydraulic pumps, pneumatic pumps, and parts thereof (2) Measuring apparatus, namely, temperature sensors, pressure sensors, flow meters, tachometers; sensors and detectors, namely, pressure, temperature, and fluid sensors; measuring, detecting and monitoring instruments, indicators and controllers, namely, electrical control systems for electric generators; controllers [regulators], namely, temperature regulators, voltage regulators; electric control valves for regulating the flow of liquids and gases; solenoid valves; electronic diagnostic and motor protection devices, apparatus, modules and instruments for compressors, namely, electrical control and diagnostic systems for heating, ventilation, air conditioning, and refrigeration machines; communication apparatus, namely, computer hardware for telecommunication with remote cooling, refrigeration, air conditioning and heating equipment, and with electric power generators; computer software for setup, configuration, monitoring, and troubleshooting of heating, ventilation, air conditioning, and refrigeration machines and of electric power generators; downloadable electronic publications in the nature of brochures, manuals, and informational sheets in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation; downloadable electronic publications recorded on computer media in the nature of brochures, manuals, and informational sheets in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation (3) Frequency inverters (4) Refrigerant condensers, and parts thereof; cooling evaporators, and parts thereof; separators for the purification of refrigerants, and parts thereof; heat exchangers, and parts thereof; valves for heat recovery units, and parts thereof; heat recovery units, and parts thereof; waste heat utilization units, and parts thereof (1) Advertising the goods and services of others; drafting and publication of publicity texts; market research; public relations services; business management consultancy and advisory services; mediation of trade business for third parties; retail and wholesale services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; compilation and systemization of information into computer databases; collection, processing and output of data in computer databases in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; updating and maintenance of data in computer databases; computerized management of databases [administrative services]; computerized data file management (2) Installation, repair, maintenance and servicing of heating, ventilation, air conditioning, and refrigeration machines, and of electric power generators, expansion machines, namely, machines for power generation through expansion of pressurized fluids, machines for power generation, organic rankine cycle electric power generators, and of parts and accessories of the aforesaid goods (3) Provision of training and education in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation; arranging and conducting of training events, conducting of courses, seminars and workshops in the field of heating, ventilation, air conditioning, and refrigeration, and electrical power generation; arranging and conducting of conferences, congresses and symposiums in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation; providing electronic publications, namely, brochures, manuals, and informational sheets, in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation (4) Technological consultancy services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; engineering services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; information technology [IT] consultancy services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; technical testing, certification, and quality control services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; engineering design and consultancy namely, technical design and consultancy services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; technical testing services, namely, testing of heating, ventilation, air conditioning, and refrigeration machines, and of electric power generators; provision of surveys [technical], namely, technical surveying; technical supervision and inspection of heating, ventilation, air conditioning, and refrigeration machines, and of electric power generators; services for monitoring of heating, ventilation, air conditioning, and refrigeration machines, and of electric power generators; monitoring of computer systems by remote access; product development; product design; product testing; software development, programming and implementation; design, maintenance and updating of computer software

Abstract

A heat exchanger comprises a shell having an elongated shape and a cylindrical geometry. A first fluid, fed through one or more first inlet pipes, flows inside the shell and a second fluid, fed through at least one second inlet pipe, flows inside the shell in order to perform heat exchange with the first fluid. The heat exchanger also comprises a fluid distributor assembly placed at the first inlet pipes. The fluid distributor assembly is provided with a first perforated plate, in turn provided with first through holes, and with at least one second perforated plate, in turn provided with second through holes.The second perforated plate is disposed parallel and downstream of the first perforated plate with respect to the flow direction of the first fluid flowing into the first through holes and the second through holes.Between the first perforated plate and the second perforated plate a hermetic seal device is disposed. The first perforated plate and the second perforated plate are spaced from each other, in such a way that the first perforated plate and the second perforated plate, together with the hermetic seal device, surround an equalization chamber of predefined depth, measured along the flow direction of the first fluid flowing into the first through holes and the second through holes.Each equalization chamber is closed at the peripheral edges of the first perforated plate and of the second perforated plate.

IPC Classes  ?

• F28F 9/02 - Header boxesEnd plates
• F28D 7/16 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation

Goods & Services

Electricity generators; electrical power generators; compressors, in particular refrigerant compressors; refrigerant fluid condensers; oil separators; mufflers being parts of machines; valves being parts of machines; valves being parts of engines; power operated valves being parts of engines; valves operated by changes in pressure being parts of engines; clack valves being parts of machines; machines for power generation, namely, AC generators, auxiliary power units for supplying electrical power to heat and power generators, block type thermal power stations for power generation, current generators, electric generators, electric power generators for indoor use, electric power generators for ships, engines and motors for the generation of electricity, gas-operated power generators, mobile electric power generators; expansion machines in the nature of steam engines, not for land vehicles; power generators and systems consisting thereof based on the organic rankine cycle technology; pumps for machines, motors and engines; component parts of the aforesaid goods Sensors and detectors for sensing and detecting temperature, pressure, voltage, current, rotation, oil level, and refrigerant level in waste heat recovery devices and power generation equipment; measuring instruments for measuring temperature, pressure, voltage, current, rotation, oil level, and refrigerant level in waste heat recovery devices and power generation equipment; frequency inverters; electric control valves, namely, automatic valves; solenoid valves; electronic diagnostic and motor protection devices, apparatus, modules and instruments, namely, computer hardware, recorded software, and downloadable software for monitoring and diagnosing malfunctions in power generators, refrigerant compressors, machines for power generation, expansion machines in the nature of machines for power generation through expansion of pressurized fluids, and organic rankine cycle systems; apparatus for the transmission of communications; downloadable and recorded computer software in the field of waste heat recovery and power generation for controlling, evaluating, and monitoring equipment, for correcting equipment performance issues, for remote maintenance and service of equipment, and for machine-to-machine communication; downloadable electronic publications, namely, informational texts, journals and newsletters, in the field of waste heat recovery and power generation; electronic publications recorded on computer media, namely, informational texts, journals and newsletters, in the field of waste heat recovery and power generation; downloadable electronic databases in the field of waste heat recovery and power generation; electronic databases recorded on computer media in the field of waste heat recovery and power generation Refrigerant condensers; evaporators for chemical processing; coolant recovery systems comprised of liquid collectors for refrigerants; separators for the purification of refrigerants; heat exchangers other than parts of machines; valves for heat recovery units; heat recovery units, namely, heat accumulators and heat exchangers for power generation, not being parts of machines; waste heat utilization units, namely, heat accumulators and heat exchangers for power generation, not being parts of machines; component parts of the aforesaid goods Advertising; drafting and publication of publicity texts; marketing; market research; public relations services; business consultancy and advisory services; mediation of trade business for third parties; retail and wholesale distributorships in the field of power generators, refrigerant compressors, refrigerant condensers, liquid collectors for refrigerants, expansion machines in the nature of machines for power generation through expansion of pressurized fluids, machines for power generation, organic rankine cycle systems and parts and accessories of the aforesaid goods; promotional and marketing sponsorship services in the nature of promoting and marketing the goods of others; compilation and systemization of information into computer databases; database management, namely, collection, processing and output of data in computer databases; updating and maintenance of data in computer databases; administrative services in the nature of management of computerized databases Installation, repair, maintenance and servicing of power generators, refrigerant compressors, refrigerant condensers, and liquid collectors for refrigerants, expansion machines in the nature of machines for power generation through expansion of pressurized fluids, machines for power generation, organic rankine cycle systems and parts and accessories of the aforesaid goods; consultancy and information in relation to the aforesaid services Conducting of courses, seminars and workshops in the field of waste heat recovery and power generation; arranging and conducting of educational conferences, congresses and symposiums in the field of waste heat recovery and power generation; publishing services, namely, publishing printed publications in the field of waste heat recovery and power generation; providing online non-downloadable publications, namely, informational texts, journals and newsletters, in the field of waste heat recovery and power generation Scientific and technological services, namely, scientific research in the field of waste heat recovery and power generation; engineering services; information technology (IT) consultancy services; IT programming services, namely, computer programming; quality control services for others, namely, technical testing and certification; engineering design and consultancy; technical product functionality, product quality, and product safety testing services, namely, testing of waste heat recovery devices and power generation equipment; provision of technical surveys in the field of waste heat recovery and power generation; technical supervision and inspection of waste heat recovery devices and power generation equipment to ensure proper functioning; services for technical testing and monitoring industrial processes, namely, quality control testing services for industrial machinery, monitoring of waste heat recovery and power generation processes for quality assurance purposes, and inspection of waste heat recovery and power generation equipment for quality control, for others; monitoring of computer systems by remote access to ensure proper functioning; product development; new product design; product testing; software development, programming and implementation; design, maintenance and updating of computer software; consultancy and information in relation to the aforesaid services

Goods & Services

Compressors, in particular refrigerant compressors; valves [mechanical] for regulating fluid flow; valves (clack -) [parts of machines]; parts for the aforesaid goods; condensing installations consisting of refrigerant compressors, condensers for refrigerants and liquid collectors. Electronic control mechanisms (regulators) for compressors, in particular refrigerant compressors; valves (electronic controls for automatically operating -); electric control valves; solenoid valves [electromagnetic switches]. Refrigerating and freezing equipment; chilling machines; refrigerating installations; refrigerating machines; transport refrigeration units; multi-compressor refrigeration installations comprising a number of compressors; heat pumps; valves for cooling machines and refrigerating machines; parts for the aforesaid goods.

Abstract

The invention relates to an expansion unit for installation in a refrigerant circuit comprising an expansion system having: a supercooling unit for supercooling a mass flow of a refrigerant fed to the expansion unit; an expansion-compression unit comprising an expander stage and a compressor stage; a branch which separates off a supercooling mass flow from a total mass flow fed to the expansion unit and is connected to a feed line which conducts the supercooling mass flow to an input of the supercooling unit; an expansion member which expands the supercooling mass flow to a supercooling pressure; a connecting line which feeds the supercooling mass flow exiting from the supercooling unit to the compression stage which for its part compresses the supercooling mass flow to a high return pressure; and an electrically operating controller which senses an ambient temperature and/or a temperature of the mass flow of the refrigerant fed to the expansion unit and/or to the expander stage and, in accordance with this temperature, sets an input pressure of the expansion unit or of the expansion-compression unit by controlling the supercooling mass flow by means of the expansion member actuated electrically by the controller.

IPC Classes  ?

• F25B 11/02 - Compression machines, plants or systems, using turbines, e.g. gas turbines as expanders
• F25B 1/10 - Compression machines, plants or systems with non-reversible cycle with multi-stage compression

Goods & Services

Generators; Generating plant; Compressors, in particular refrigerant compressors; Mixing machines; Oil separators; Mufflers [parts of machines]; Valves (Clack -) [parts of machines]; Valves (Clack -) [parts of machines]; Power operated valves; Valves operated by changes in pressure; Valves (Clack -) [parts of machines]; Current generators; Expansion machines; Organic Rankine Cycle systems; Pumps [machines]; Parts for the aforesaid goods. Measuring apparatus; Sensors and detectors; Measuring, detecting and monitoring instruments, indicators and controllers; Controllers (regulators); Frequency transformers; Electric control valves; Solenoid valves [electromagnetic switches]; Electronic diagnostic and motor protection devices, apparatus, modules and instruments for generators, compressors, electricity generation machines, expansion machines and Organic Rankine Cycle systems; Communications apparatus; Software; Electronic publications, downloadable; Electronic publications recorded on computer media; Databases (electronic). Refrigerant condensers; Evaporators; Refrigerant liquid collectors; Separators for purifying refrigerants; Heat exchangers, other than parts of machines; Valves for heat recovery systems; Heat recovery installations; Installations for waste heat utilisation; Parts for the aforesaid goods. Advertising; Writing and publication of publicity texts; Marketing services; Marketing studies; Public relations services; Business consultancy and advisory services; Mediation of trade business for third parties; Retailing and wholesaling in relation to generators, compressors, condensers, refrigerant liquid collectors; Expansion machines, power generating machines, Organic Rankine Cycle systems and parts and fittings for the aforesaid goods; Promotional sponsorship; Compilation and systemization of information into computer databases; Data processing; Updating and maintenance of data in computer databases; Computerized file management; Computerized file management. Installation, repair, maintenance and servicing of generators, compressors, condensers, refrigerant liquid collectors, expansion machines, power generating machines, Organic Rankine Cycle systems and parts and fittings for the aforesaid goods; Consultancy and information in relation to the aforesaid services, included in this class. Provision of training and education; Arranging and conducting of training events, conducting of courses, seminars and workshops; Arranging and conducting of conferences, congresses and symposiums; Issue of publications; Providing electronic publications. Science and technology services; Engineering services; IT services; Technical testing and certification (quality control); Engineering design and consultancy; Technical testing services; Technical know-how; Technical supervision and inspection; Services for monitoring industrial processes; Monitoring of computer systems by remote access; Product development; Product design; Product testing; Software development, programming and implementation; Design, maintenance and up-dating of computer software; Consultancy and information in relation to the aforesaid services, included in this class.

Goods & Services

Compressors, in particular refrigerant compressors; condensers [machines]; oil separators; machines for power generation; expansion machines; mechanical installations for operating steam turbines or steam engines with organic working fluids [organic rankine cycle installations]; parts for the aforesaid goods; condensing units consisting of compressors, condensers and liquid collectors for refrigerants; none of the aforementioned goods for use in actuators or flow control valves. Measuring, detection, monitoring, regulating and communication apparatus for operation, control and maintenance of compressors, in particular refrigerant compressors, condensers, oil separators, power generating machines, expansion machines, mechanical installations for operating steam turbines or steam machines with organic working fluids [organic rankine cycle installations]; measuring, detection, monitoring, regulating and communication apparatus for operation, control and maintenance of cooling machines, cooling installations, refrigerating machines, mobile cooling units, integrated cooling installations consisting of several compressors, air conditioning apparatus, air conditioning installations, refrigerant condensers, evaporators, condensing units [consisting of refrigerant compressors, condensers and liquid collectors], refrigerant liquid collectors, separators for purifying refrigerants; measuring, detection, monitoring, regulating and communication apparatus for operation, control and maintenance of heat exchangers, heat pumps, heat recovery installations and installations for waste heat utilisation; software for the operation of all of the aforesaid measuring, detection, monitoring, regulating and communications apparatus, included in this class; none of the aforementioned goods for use in actuators or flow control valves. Cooling machines; refrigerating installations; refrigerating machines; mobile cooling units; integrated cooling installations consisting of several compressors; air conditioning apparatus; air conditioning installations; refrigerant condensers; evaporators; refrigerant liquid collectors; separators for purifying refrigerants; heat exchangers; heat pumps; heat recovery installations; waste heat utilisation units; parts for the aforesaid goods; none of the aforementioned goods for use in actuators or flow control valves. Installation, repair, maintenance and servicing of compressors, condensers, cooling machines, cooling installations, refrigerating machines, mobile cooling units, integrated cooling installations, air conditioning apparatus, air conditioning installations, refrigerant condensers, evaporators, refrigerant liquid collectors, expansion machines, power generating machines and parts and fittings for the aforesaid goods; consultancy and information in relation to the aforesaid services, included in this class; none of the aforementioned services in relation to actuators or flow control valves.

Goods & Services

Compressors, in particular refrigerant compressors; condensers (machines); condensing units consisting of compressor, condenser and liquid collector for refrigerants; parts of the aforesaid goods, included in this class. Refrigerating apparatus; cooling installations; refrigerating machines; refrigerant condensers; evaporators; liquid collectors for refrigerants, being part of refrigerating apparatus; parts of the aforesaid goods, included in this class. Installation, repair, maintenance and servicing of compressors, condensers, refrigerating apparatus, cooling installations, refrigerating machines, refrigerant condensers, evaporators, liquid collectors for refrigerants, condensing units consisting of compressor, condenser and liquid collector for refrigerants and parts and accessories of the aforesaid goods; consultancy and information in relation to the aforesaid services, as far as included in this class.

Abstract

The invention relates to a semi-hermetic coolant compressor, comprising a reciprocating compressor, an electric motor, a complete housing which has a motor housing section for the electric motor and a compressor housing section for the reciprocating compressor, a suction-side coolant path which leads from a suction connection on the complete housing to an inlet chamber of the reciprocating compressor, and a pressure-side coolant path which leads from an outlet chamber of the reciprocating compressor to a pressure connection on the complete housing. The aim of the invention is to improve such a coolant compressor such that the coolant compressor functions more efficiently. This is achieved in that the electric motor is designed as a synchronous motor, the rotor of which is equipped with permanent magnets for the synchronous operation of the electric motor and a squirrel cage for starting up the electric motor in the asynchronous operation.

IPC Classes  ?

• F04B 35/04 - Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
• F04B 49/24 - Bypassing
• F04B 49/06 - Control using electricity

Goods & Services

Compressors, in particular refrigerant compressors; valves for regulating fluid flow being parts of machines; valves being machine parts; replacement parts for the aforesaid goods; condensing installations consisting of refrigerant compressors, condensers for refrigerants and liquid collectors Electronic control mechanisms for regulating compressors, in particular refrigerant compressors; electronic controls for automatically operating valves; electric control valves in the nature of automatic valves; solenoid valves; valves for regulating fluid flow not being parts of plumbing, heating, cooling installations or machines Refrigerating and freezing equipment, namely, refrigerators and freezers; chilling machines, namely, food and beverage chilling units; refrigerating installations; refrigerating machines; refrigerating transport assemblies, namely, transport refrigeration units for trucks, trailers and shipping containers; multi-compressor refrigeration installations comprising a number of compressors; refrigerator condensing units consisting of refrigerant compressors, condensers and liquid collectors; heat pumps; valves being parts of cooling machines and refrigerating machines; replacement parts for the aforesaid goods

Goods & Services

Instructional and teaching material (except apparatus); three dimensional models for teaching, instructional and educational purposes; printed matter, especially books, booklets, magazines, newspapers, programs, catalogues, calendars, posters, pictures, prints, postcards; bookbinding materials; photographs; stationery; artists' materials; paper, cardboard. Advertising; business management; business administration; business consultancy; public relations; computer file management; organizing events for business or promotional purposes; organising fairs and exhibitions for commercial purposes; mediation of business opportunities in connection with purchase, sale as well as import and export of products relating to the operation of a museum; organising exhibitions for business or promotional purposes; collection and systematization of business data in a centralised database for museums; consultancy services regarding to aforementioned services; retail and wholesale services in connection with prerecorded audio, image, sound-image and data carriers, computer programs, precious metals and their alloys and in precious metals or coated therewith, jewellery, scale models made of metal, plastic, synthetic resin, plaster, wood or wax, inflatable publicity objects, clothing, footwear, headwear, toys, games playthings and novelties, scale model kits, gymnastic and sporting articles. Education and teaching; training and further education; entertainment services including staging festivals, celebrations and receptions; museum services; sporting, musical and cultural activities; organising and conducting lectures, colloquia, congresses, conferences, seminars; publishing texts [except advertising texts]; publication of printed matter and electronic media; film, audio and video production; production of sound or image recording and adaptation; providing information about sporting, musical, cultural and teaching activities; providing information about education; consultancy services regarding to aforementioned services. Scientific and industrial research; conducting scientific inquiries and furnishing scientific expert opinions; engineering consulting services; technological consulting services; scientific consulting services; certifications [quality control]; design and development of computer software; providing information about technical and scientific services; consultancy services in the field of science; advisory services relating to technological and scientific research; design services relating to model making for play, exhibition and entertainment purposes. Services for providing food and drink; temporary accommodation, banqueting services and catering; managing rooms for exhibitions; room rental for parties, conferences, meetings, exhibitions, seminars and conventions; consultancy services regarding to aforementioned services.

Abstract

The invention relates to a compressor comprising a compressor housing; a scroll compressor unit which is arranged in the compressor housing and comprises a first stationary compressor body and a second compressor body that can be moved relative to the stationary compressor body; an eccentric drive for the scroll compressor unit, said drive having a driver which is driven by a drive motor and a driver which circulates about the central axis of a driveshaft on an orbital path; and an orbital path balancing mass which counteracts an imbalance due to the compressor body moving on the orbital path. The aim of the invention is to improve such a compressor such that the long-term stability of the driver guidance in the driver receiving area can be ensured even at high rotational speeds. This is achieved in that the orbital balancing mass is coupled to the eccentric drive such that the mass moves on the orbital path in a manner corresponding to the movement of the driver but is uncoupled with respect to the transmission of tilting moments to the driver.

IPC Classes  ?

• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
• F04C 2/02 - Rotary-piston machines or pumps of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents

Goods & Services

Compressors, in particular refrigerant compressors; condensers [machines]; oil separators; machines for power generation; expansion machines [steam engines]; mechanical installations for operating steam turbines or steam engines with organic working fluids [organic rankine cycle installations]; condensing installations consisting of refrigerant compressors, condensers and liquid collectors; parts for the aforesaid goods. Cooling machines; refrigerating installations; refrigerating machines; mobile cooling units; integrated cooling installations consisting of several compressors; air conditioning apparatus; air conditioning installations; refrigerant condensers; evaporators; refrigerant liquid collectors; separators for purifying refrigerants; heat exchangers; heat pumps; heat recovery installations; installations for waste heat utilisation; parts for the aforesaid goods. Installation, repair, maintenance and servicing of compressors, condensers, cooling machines, cooling installations, refrigerating machines, mobile cooling units, integrated cooling installations, air conditioning apparatus, air conditioning installations, refrigerant condensers, evaporators, refrigerant liquid collectors, expansion machines, power generating machines and parts and fittings for the aforesaid goods; consultancy and information in relation to the aforesaid services, included in this class.

Goods & Services

Compressors, in particular refrigerant compressors; condensers [machines]; oil separators; machines for power generation; expansion machines [steam engines]; mechanical installations for operating steam turbines or steam engines with organic working fluids [organic rankine cycle installations]; condensing installations consisting of refrigerant compressors, condensers and liquid collectors; parts for the aforesaid goods. Cooling machines; refrigerating installations; refrigerating machines; mobile cooling units; integrated cooling installations consisting of several compressors; air conditioning apparatus; air conditioning installations; refrigerant condensers; evaporators; refrigerant liquid collectors; separators for purifying refrigerants; heat exchangers; heat pumps; heat recovery installations; installations for waste heat utilisation; parts for the aforesaid goods. Installation, repair, maintenance and servicing of compressors, condensers, cooling machines, cooling installations, refrigerating machines, mobile cooling units, integrated cooling installations, air conditioning apparatus, air conditioning installations, refrigerant condensers, evaporators, refrigerant liquid collectors, expansion machines, power generating machines and parts and fittings for the aforesaid goods; consultancy and information in relation to the aforesaid services, included in this class.

Goods & Services

Compressors, in particular refrigerant compressors; Valves [mechanical] for regulating fluid flow; Valves (Clack -) [parts of machines]; Parts for the aforesaid goods. Electronic control mechanisms (regulators) for compressors, in particular refrigerant compressors; Valves (Electronic controls for automatically operating -); Electric control valves; Solenoid valves [electromagnetic switches]. Refrigerating and freezing equipment; Chilling machines; Refrigerating installations; Refrigerating machines; Refrigerated transport assemblies; Multi-compressor refrigeration installations comprising a number of compressors; Condensing units consisting of refrigerant compressors, condensers and liquid collectors; Heat pumps; Valves for cooling machines and refrigerating machines; Parts for the aforesaid goods.

Goods & Services

Software for operating compressors, in particular refrigerant compressors, condensers, oil separators, power generating machines, expansion machines, mechanical installations for operating steam turbines or steam machines with organic working fluids [organic rankine cycle installations]; software for operating cooling machines, cooling installations, refrigerating machines, mobile cooling units, integrated cooling installations consisting of several compressors, air conditioning apparatus, air conditioning installations, refrigerant condensers, evaporators, condensing units [consisting of refrigerant compressors, condensers and liquid collectors], refrigerant liquid collectors, separators for purifying refrigerants, heat exchangers, heat pumps, heat recovery installations, installations for waste heat utilisation; software for operating external measuring, detection, monitoring, regulating and communications apparatus, integrated in all of the aforesaid goods or used in the operation thereof.

Goods & Services

Compressors, in particular refrigerant compressors; condensers [machines]; oil separators; machines for power generation; expansion machines; mechanical installations for operating steam turbines or steam engines with organic working fluids (organic rankine cycle installations); parts for the aforesaid goods. Cooling machines; refrigerating installations; refrigerating machines; mobile cooling units; integrated cooling installations consisting of several compressors; air conditioning apparatus; air conditioning installations; refrigerant condensers; evaporators; condensing units (parts of machines, included in this class) consisting of refrigerant compressors, condensers and liquid collectors; refrigerant liquid collectors; separators for purifying refrigerants; heat exchangers; heat pumps; heat recovery installations; installations for waste heat utilisation; parts for the aforesaid goods. Installation, repair, maintenance and servicing of compressors, condensers, cooling machines, cooling installations, refrigerating machines, mobile cooling units, integrated cooling installations, air conditioning apparatus, air conditioning installations, refrigerant condensers, evaporators, refrigerant liquid collectors, expansion machines, power generating machines and parts and fittings for the aforesaid goods; consultancy and information in relation to the aforesaid services, included in this class.

Goods & Services

Measuring, detection, monitoring, regulating and communication apparatus for operation, control and maintenance of compressors, in particular refrigerant compressors, condensers, oil separators, power generating machines, expansion machines, mechanical installations for operating steam turbines or steam machines with organic working fluids [organic rankine cycle installations]; measuring, detection, monitoring, regulating and communication apparatus for operation, control and maintenance of cooling machines, cooling installations, refrigerating machines, mobile cooling units, integrated cooling installations consisting of several compressors, air conditioning apparatus, air conditioning installations, refrigerant condensers, evaporators, condensing units [consisting of refrigerant compressors, condensers and liquid collectors], refrigerant liquid collectors, separators for purifying refrigerants; measuring, detection, monitoring, regulating and communication apparatus for operation, control and maintenance of heat exchangers, heat pumps, heat recovery installations and installations for waste heat utilisation; software for the operation of all of the aforesaid measuring, detection, monitoring, regulating and communications apparatus, included in this class; none of the aforementioned goods for use in actuators or flow control valves.

Goods & Services

Frequency converters for drive motors of compressors, in particular refrigerant compressors; frequency converters for generators of power generating machines, expansion machines, cooling machines, cooling installations, refrigerating machines, mobile cooling units, air conditioning apparatus, air conditioning installations, condensing units [consisting of refrigerant compressors, condensers and liquid collectors], heat pumps, heat recovery installations, installations for waste heat utilisation; frequency converters for drive motors of fans and ventilators; parts of the aforesaid goods.

Goods & Services

Compressors, in particular refrigerant compressors; condensers [machines]; oil separators; machines for power generation; expansion machines [steam engines]; mechanical installations for operating steam turbines or steam engines with organic working fluids [organic rankine cycle installations]; parts for the aforesaid goods; none of the aforementioned goods for use in actuators or flow control valves. Cooling machines; refrigerating installations; refrigerating machines; mobile cooling units; integrated cooling installations consisting of several compressors; air conditioning apparatus; air conditioning installations; refrigerant condensers; evaporators; condensing units [parts of machines, included in this class] consisting of refrigerant compressors, condensers and liquid collectors; refrigerant liquid collectors; separators for purifying refrigerants; heat exchangers; heat pumps; heat recovery installations; installations for waste heat utilisation; parts for the aforesaid goods; none of the aforementioned goods for use in actuators or flow control valves. Installation, repair, maintenance and servicing of compressors, condensers, cooling machines, cooling installations, refrigerating machines, mobile cooling units, integrated cooling installations, air conditioning apparatus, air conditioning installations, refrigerant condensers, evaporators, refrigerant liquid collectors, expansion machines, power generating machines and parts and fittings for the aforesaid goods; consultancy and information in relation to the aforesaid services, included in this class; none of the aforementioned services in relation to actuators or flow control valves.

Abstract

In order to improve a method for selecting a frequency converter for a coolant compressor unit, comprising a coolant compressor and an electric drive motor, in such a way that the frequency converter is selected in an application-optimised manner, according to the invention: a working state that is suitable for the operation of the coolant compressor unit is selected in a field of application of an application diagram of the coolant compressor; an operating frequency is selected for this selected working state; and, from drive data, a working state operating current value corresponding to the selected working state and the selected operating frequency is determined for the operation of the coolant compressor unit.

IPC Classes  ?

• H02P 27/04 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
• F25B 31/00 - Compressor arrangements
• G06Q 50/00 - Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
• H02P 29/024 - Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
• H02P 23/00 - Arrangements or methods for the control of AC motors characterised by a control method other than vector control
• H02P 29/032 - Preventing damage to the motor, e.g. setting individual current limits for different drive conditions

Abstract

The invention relates to a refrigerant compressor unit, comprising a compressor housing (52), at least one compressor unit (62), which is arranged in the compressor housing and can be moved by means of bearing and driving parts (68, 72, 74) and works in at least one compressor chamber, at least one lubricant supply point for at least one of the bearing and driving parts and/or compressor element, which lubricant supply point is arranged in the compressor housing (52), and a lubricant feed (114, 152) to the at least one lubricant supply point, wherein the lubricant feed (114, 152) has a lubricant storage space (116, 144), through which lubricant flows and in which a lubricant presence sensor (122) for sensing the presence of lubricant in the lubricant storage space (116, 144) is arranged.

IPC Classes  ?

• F04C 29/02 - LubricationLubricant separation
• F04C 18/16 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
• F04C 28/28 - Safety arrangementsMonitoring
• F04B 53/18 - Lubricating

Abstract

Screw compressor comprising a compressor housing (12) with a screw rotor chamber which is arranged therein, two screw rotors (26, 28) which are arranged in the screw rotor chamber, are mounted such that they can be rotated in each case about a screw rotor axis on the compressor housing (12), and engage into one another by way of the screw contours thereof, and two control slides (52, 54) which are arranged in a slide channel (56) of the compressor housing so as to lie behind one another in a displacement direction which runs parallel to the screw rotor axis, adjoin the two screw rotors with slide compression wall surfaces, and can be moved in the displacement direction, wherein the first control slide (52) and the second control slide (54) can be moved, in a composite position with end sides which face one another, in the displacement direction in a manner which is joint and terminates sealingly with one another, and can be positioned at a spacing from one another in a separated position with the formation of an intermediate space, wherein the control slides form an inflow chamber (198) at least in a transition position which lies between the composite position and the separated position, into which inflow chamber (198) the medium to be compressed flows from one of the compression chambers, by virtue of the fact that it passes between the end sides of the control slides which face one another, and wherein one of the control slides is provided with at least one outflow outlet (212) which adjoins the inflow chamber and through which the medium from the inflow chamber (198) enters into an outflow opening (144) on the slide channel (56), which outflow opening (144) overlaps with the outflow outlet in said transition position.

IPC Classes  ?

• F04C 28/12 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves
• F04C 18/16 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type

Abstract

Compressor unit comprising a screw-type compressor (10) with a compressor housing (12), with a screw rotor chamber which is arranged in the compressor housing, two screw rotors (26, 28) which are arranged in the screw rotor chamber and are mounted on the compressor housing such that they can be rotated in each case about a screw rotor axis, and at least one control slide (52, 54) which is arranged in a slide channel (56) of the compressor housing, adjoins the two screw rotors, and can be moved in a displacement direction parallel to the screw rotor axes, and is configured so as to influence the end volume and/or the initial volume, wherein a compressor operational control unit (240) is provided on the screw-type compressor, which compressor operational control unit (240) is configured such that it carries out a compressor operational function which assists at least one operation of the compressor unit.

IPC Classes  ?

• F04C 18/16 - Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
• F04C 28/12 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves
• F04C 28/28 - Safety arrangementsMonitoring

Abstract

An insulating sleeve for a compressor discharge pipe is provided. The insulating sleeve includes a first half-sleeve having a first curved body portion and a first extended portion. The first curved body portion is configured to fit at least partially around a portion of the compressor discharge pipe. A second half-sleeve has a second curved body portion configured to attach to the first curved body portion such that the first and second curved body portions completely encircle the portion of the compressor discharge pipe. The second half-sleeve includes a second extended portion configured to attach to the first extended portion. Each of the first and second extended portions include respective first and second cavities which, together, encase a temperature sensor in contact with, or in spaced relation to, the compressor discharge pipe.

IPC Classes  ?

• F16L 55/00 - Devices or appurtenances for use in, or in connection with, pipes or pipe systems
• F16B 2/06 - Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
• F16B 2/08 - Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using bands
• F16B 2/20 - Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening

Abstract

An activation system for a coolant compressor unit, comprising a coolant compressor, an electric drive motor for the coolant compressor and a compressor controller, which determines the voltage and rotational speed of the drive motor on the basis of sets of configuration parameters loaded into this compressor controller and actuates the drive motor correspondingly, wherein the activation system has a compressor data memory in which compressor data is stored for respectively possible coolant compressors and has a motor data memory in which motor data relating to possible drive motors is stored, wherein the activation system has a processor for carrying out the activation, a display unit and an input unit, wherein the display unit and the input unit serve to determine the coolant compressor and the drive motor during the activation, and wherein the processor generates compressor configuration parameters and motor configuration parameters by means of the compressor data of the determined coolant compressor and by means of the motor data of the determined drive motor and loads said parameters into the compressor controller to operate the drive motor.

IPC Classes  ?

• G05B 19/042 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors

Abstract

The invention relates to a heat exchanger unit for a cooling system guiding a coolant in a coolant circuit, wherein the heat exchanger unit has a heat-emitting heat exchanger with a heat-emitting flow path for the coolant and a heat-receiving flow path for a second heat transportation medium, and a heat-receiving heat exchanger with a heat-receiving flow path for the coolant and a heat-emitting flow path for a first heat exchanger medium, wherein the heat exchanger unit is formed in a stacked construction and has structure layers and cover layers alternating in a stacking direction, wherein the structure layers determine a course of the flow paths for the coolant or the heat transportation medium transverse to the stacking direction and the cover layers cover and limit the flow paths in the stacking direction, and wherein at least one of the flow paths for the coolant runs in at least one of the structure layers and at least one of the flow paths for one of the heat transport media runs in at least one of the other structure layers.

IPC Classes  ?

• F28D 9/00 - Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall

Abstract

Facility having a storage unit comprising a housing enclosing a storage volume for receiving goods and/or equipment further comprising an operating system provided with a tempering unit associated with said storage volume for maintaining a defined or set temperature in said storage volume, said operating system being provided with a refrigerant circuit comprising an internal heat exchanger, arranged in said tempering unit, an external heat exchanger as well as a compressor unit for compressing refrigerant, characterized in that said operating system is provided with an engine for driving said compressor unit as an independent power source and said operating system is provided with an electric generator unit mechanically coupled to said engine, said compressor unit and/or said generator unit are driven by said engine independent power source, and said operating system is connected to a local energy supply system of said facility.

IPC Classes  ?

• F25B 27/00 - Machines, plants or systems, using particular sources of energy

Abstract

A method of manufacturing a two-piece counterweight for a scroll compressor is provided. The method includes molding an outer plate, and molding a base having a first opening configured to receive a scroll compressor drive shaft having a longitudinal axis, and configuring the base for assembly and attachment to the drive shaft. The method also includes attaching the outer plate to the base such that the outer plate is axially offset from the base. In a particular embodiment of this method, the base and outer plate are molded from powdered metal. In certain embodiments, the base and outer plate include one or more openings aligned to permit attachment by inserting a mechanical fastener through the aligned openings. In alternate embodiments, the base and outer plate are attached via brazing or welding.

IPC Classes  ?

• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups

Goods & Services

Apparatus for measuring motor temperature, motor voltage, motor current, motor speed, refrigerant pressure, refrigerant temperature, and valve position in refrigerant compressors, machines for power generation, cooling machines, cooling installations, refrigerating machines, mobile cooling units, air conditioning devices and installations, and organic Rankine cycle installations; Apparatus for measuring refrigerant pressure and refrigerant temperature in condensers, separators, evaporators, and liquid collectors; Apparatus for measuring characteristics of oil or other lubricants, in particular, temperature, pressure, level and flow, in refrigerant compressors, machines for power generation, cooling machines, cooling installations, refrigerating machines, mobile cooling units, air conditioning devices and installations, organic Rankine cycle installations, condensers, separators, evaporators, and liquid collectors; Software for monitoring, regulating and controlling the operation of refrigerant compressors, machines for power generation, cooling machines, cooling installations, refrigerating machines, mobile cooling units, air conditioning devices and installations, organic Rankine cycle installations, condensers, separators, evaporators, and liquid collectors; none of the aforementioned goods for use in actuators or flow control valves; none of the above goods for or in relation to fire detection or fire protection

Goods & Services

Compressors, in particular refrigerant compressors and parts for the aforesaid goods; none of the aforementioned goods for use in actuators or flow control valves; none of the above goods for or in relation to fire detection or fire protection Refrigerating machines; air conditioning apparatus; air conditioning installations; refrigerant condensers; condensing units being parts of refrigerant machines, consisting of refrigerant compressors, condensers and liquid collectors; heat pumps; heat recovery units as parts of refrigeration units or air conditioning units; waste heat utilization units as parts of refrigeration units or air conditioning units; structural parts for the aforesaid goods; none of the aforementioned goods for use in actuators or flow control valves; none of the above goods for or in relation to fire detection or fire protection Installation, repair, maintenance and servicing of compressors, condensers, cooling machines, cooling installations, refrigerating machines, mobile cooling units, integrated cooling installations, air conditioning apparatus, air conditioning installations, refrigerant condensers, evaporators, refrigerant liquid collectors, expansion machines, power generating machines and parts and fittings for the aforesaid goods; consultancy and information in relation to the aforesaid services; none of the aforementioned services in relation to actuators or flow control valves; none of the above services in relation to devices or software for fire detection or fire protection

Goods & Services

Compressors, in particular refrigerant compressors for application in vehicles, trailers, and transport containers Installation, repair, maintenance and servicing of refrigerant compressors; consultancy and information in relation to the installation, repair, maintenance and servicing of refrigerant compressors

Goods & Services

Compressors, in particular refrigerant compressors; mobile electric power generators; condensing installations consisting of refrigerant compressors, condensers and liquid collectors; structural parts for the aforesaid goods Refrigerating installations; refrigerating machines; mobile air cooling units for application in vehicles, trailers and transport containers; heat pumps; structural parts for the aforesaid goods Installation, repair, maintenance and servicing of compressors, condensers, cooling machines, cooling installations, refrigerating machines, mobile cooling units, integrated cooling installations, refrigerant condensers, evaporators, refrigerant liquid collectors, expansion machines, power generating machines and parts and fittings for the aforesaid goods; consultancy and information in relation to the aforesaid services

Goods & Services

Frequency converters for drive motors of compressors, in particular refrigerant compressors; frequency converters for generators of power generating machines, expansion machines, cooling machines, cooling installations, refrigerating machines, mobile cooling units, air conditioning apparatus, air conditioning installations, condensing units consisting of refrigerant compressors, condensers and liquid collectors, heat pumps, heat recovery installations, installations for waste heat utilisation; frequency converters for drive motors of fans and ventilators; parts of the aforesaid goods, namely, parts for frequency converters

Goods & Services

Downloadable software for operating compressors, in particular refrigerant compressors, condensers, oil separators, power generating machines, expansion machines, mechanical installations for operating steam turbines or steam machines with organic working fluids, and organic Rankine cycle installations; downloadable software for operating cooling machines, cooling installations, refrigerating machines, mobile cooling units, integrated cooling installations consisting of several compressors, air conditioning apparatus, air conditioning installations, refrigerant condensers, evaporators, condensing units consisting of refrigerant compressors, condensers and liquid collectors, refrigerant liquid collectors, separators for purifying refrigerants, heat exchangers, heat pumps, heat recovery installations, installations for waste heat utilisation; downloadable software for operating external measuring, detection, monitoring, regulating and communications apparatus

Goods & Services

Compressors, in particular refrigerant compressors Refrigerating installations; refrigerating machines; refrigerant condensers; structural parts for the aforesaid goods Installation, repair, maintenance and servicing of refrigerant compressors, refrigerant condensers, and refrigerating machines; consultancy and information in relation to the aforesaid services

Goods & Services

Compressors, in particular refrigerant compressors; oil separators; gas-operated power generators; expansion machines, namely, machines for expanding pressurized fluids; mechanical installations for operating steam turbines or steam engines with organic working fluids; replacement parts for the aforesaid goods; none of the aforementioned goods for use in actuators or flow control valves; none of the above goods for or in relation to fire detection or fire protection Apparatus for measuring motor temperature, motor voltage, motor current, motor speed, refrigerant pressure, refrigerant temperature, and valve position in refrigerant compressors, machines for power generation, cooling machines, cooling installations, refrigerating machines, and organic Rankine cycle installations; Apparatus for measuring refrigerant pressure and refrigerant temperature in condensers, separators, evaporators, and liquid collectors; Apparatus for measuring characteristics of oil or other lubricants, in particular, temperature, pressure, level and flow, in refrigerant compressors, machines for power generation, cooling machines, cooling installations, refrigerating machines, organic Rankine cycle installations, condensers, separators, evaporators, and liquid collectors; Software for monitoring, regulating and controlling the operation of refrigerant compressors, machines for power generation, cooling machines, cooling installations, refrigerating machines, organic Rankine cycle installations, condensers, separators, evaporators, and liquid collectors; none of the aforementioned goods for use in actuators or flow control valves; none of the above goods for or in relation to fire detection or fire protection Refrigerating installations for buildings; refrigerant condensers; replacement parts for the aforesaid goods; none of the aforementioned goods for use in actuators or flow control valves; none of the above goods for or in relation to fire detection or fire protection Installation, repair, maintenance and servicing of compressors, condensers, refrigerating machines, refrigerant condensers, evaporators, refrigerant liquid collectors, expansion machines, power generating machines and parts and fittings for the aforesaid goods; consultancy and information in relation to the aforesaid services; none of the aforementioned services in relation to actuators or flow control valves; none of the above services in relation to devices or software for fire detection or fire protection

Abstract

In order to optimize a compressor comprising a compressor housing, a scroll compressor unit which is arranged in the compressor housing with a first compressor body and a second compressor body which can be moved relative to the first compressor body, an axial guide which supports the movable compressor body against movements in the direction parallel to the centre axis of the compressor body which is arranged in a stationary manner, and, in the case of movements in the direction transversely with respect to the centre axis, guides it parallel to a plane which runs perpendicularly with respect to the centre axis, an eccentric drive for the scroll compressor unit, which eccentric drive has a driver which is driven by the drive motor, circulates about the centre axis on a track, and for its part interacts rotatably with a driver receptacle of the second compressor body, and a clutch which prevents automatic rotation of the second compressor body, it is proposed that the axial guide has a carrier element which serves as a base for a support of a compressor body base of the second compressor body on an axial supporting surface, which compressor body base forms the scroll rib, that the axial supporting surface is arranged radially on the outside relative to the driver, and that the clutch which prevents the automatic rotation has at least two clutch element sets which for their part comprise at least two clutch elements, and that the clutch element sets are arranged so as to lie radially on the outside relative to the axial supporting surface.

IPC Classes  ?

• F01C 17/06 - Arrangements for drive of co-operating members, e.g. for rotary piston and casing using cranks, universal joints, or similar elements
• F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluidsPumping installations specially adapted for elastic fluidsMulti-stage pumps specially adapted for elastic fluids
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• F04C 27/00 - Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids

Goods & Services

Compressors, in particular refrigerant compressors; refrigerant condensing machines; condensing units consisting of compressor, condenser and liquid collector for refrigerants; parts of the aforesaid goods, included in this class Refrigerating apparatus; air cooling installations; refrigerating machines; refrigerant condensers; cooling evaporators; liquid collectors for refrigerants, being part of refrigerating apparatus; parts of the aforesaid goods, included in this class Installation, repair, maintenance and servicing of compressors, condensers, refrigerating apparatus, cooling installations, refrigerating machines, refrigerant condensers, evaporators, liquid collectors for refrigerants, condensing units consisting of compressor, condenser and liquid collector for refrigerants and parts and accessories of the aforesaid goods; consultancy and information in relation to the aforesaid services, as far as included in this class

Goods & Services

Refrigerants; heat transfer fluids. Industrial oils; motor oil. Compressors, in particular refrigerant compressors; condensers (machines); oil separators; mufflers (parts of machines); valves (parts of machines); valves (parts of engines); power operated valves; valves operated by changes in pressure; clack valves (parts of machines); machines for power generation; expansion machines; machine installations for operating steam turbines or steam engines with organic working fluids (Organic Rankine Cycle systems); parts of the aforesaid goods. Measuring apparatus; sensors and detectors; measuring, detecting and monitoring instruments, indicators and controllers; controllers (regulators); frequency inverters; electric control valves; solenoid valves; electronic diagnostic and motor protection devices, apparatus, modules and instruments for compressors; communication apparatus; computer software; application software for digital refrigerant sliders; electronic publications (downloadable); electronic publications recorded on computer media; electronic databases. Refrigerating and freezing equipment; refrigerating apparatus; cooling installations; refrigerating machines; mobile cooling units; integrated cooling installations consisting of several compressors; air-conditioning apparatus; air conditioning installations; refrigerant condensers; evaporators; condensing units (parts of machines, as far as included in class 11) consisting of compressor, condenser and liquid collector for refrigerants; liquid collectors for refrigerants; separators for the purification of refrigerants; heat exchangers; heat pumps; fittings, namely fittings for cooling and freezing machines and installations; valves for refrigerating apparatus, refrigerating machines and air conditioning apparatus; heat recovery units; waste heat utilization units; parts of the aforesaid goods. Printed matter; printed promotional material; printed informational brochures; instructional and teaching material (except apparatus); stationery; office requisites (except furniture); packaging materials. Clothing; headgear. Advertising; drafting and publication of publicity texts; marketing; market research; public relations services; business consultancy and advisory services; mediation of trade business for third parties; retail and wholesale services relating to compressors, condensers, refrigerating apparatus, cooling installations, refrigerating machines, mobile cooling units, air-conditioning apparatus, air-conditioning installations, refrigerant condensers, evaporators, liquid collectors for refrigerants, expansion machines, machines for power generation and parts and accessories of the aforesaid goods; promotional sponsorship; compilation and systemization of information into computer databases; collection, processing and output of data in computer databases; updating and maintenance of data in computer databases; computerized management of databases; computerized file management. Financing services; lease-purchase financing; financial sponsorship. Installation, repair, maintenance and servicing of compressors, condensers, refrigerating apparatus, cooling installations, refrigerating machines, mobile cooling units, integrated cooling installations, air-conditioning apparatus, air-conditioning installations, refrigerant condensers, evaporators, liquid collectors for refrigerants, expansion machines, machines for power generation and parts and accessories of the aforesaid goods; consultancy and information in relation to the aforesaid services, as far as included in this class. Telecommunications; transfer of information and data via online services and the Internet; telecommunication services provided via Internet platforms and portals; providing access to electronic communications networks and electronic databases; providing access to content, websites and Internet portals. Provision of training and education; arranging and conducting of training events, conducting of courses, seminars and workshops; arranging and conducting of conferences, congresses and symposiums; publishing services; providing electronic publications. Scientific and technological services; engineering services; information technology [IT] services; IT programming services; technical testing and certification (quality control); engineering design and consultancy; technical testing services; provision of surveys [technical]; technical supervision and inspection; services for monitoring industrial processes; monitoring of computer systems by remote access; product development; product design; product testing; software development, programming and implementation; design, maintenance and up-dating of computer software; consultancy and information in relation to the aforesaid services, as far as included in this class.

Abstract

Method for controlling a compressor system, arranged in a heat pumping circuit, said compressor system being designed to be operated at at least two different compressor capacity stages, said compressor capacity stages being adjusted by a capacity adjustment system enabling switching from one compressor capacity stage to another compressor capacity stage, said capacity adjustment system being controlled by a capacity selection signal defining the compressor capacity stage to be selected, said method comprising determining a capacity set value, determining a decision quantity on the basis of said capacity set value, determining a calculated capacity average value on the basis of capacity selection signals generated before, comparing said calculated capacity average value with said decision quantity and changing said compressor capacity stage to the next higher stage if the calculated capacity average value is below the decision quantity or changing said compressor capacity stage to the next lower stage if the calculated capacity average value is above the decision quantity, or not changing said compressor capacity stage if the calculated capacity average value meets said decision quantity.

IPC Classes  ?

• F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems
• F25B 1/10 - Compression machines, plants or systems with non-reversible cycle with multi-stage compression

Abstract

A method of operating a multiple-compressor refrigeration system is provided. This method includes the steps of supplying, via a common supply line, refrigerant gas and oil to a plurality of compressors coupled in series, and attaching an oil flow conduit between adjacent compressors of the plurality of compressors. The oil flow conduit is configured to move oil from a compressor with a relatively higher pressure to a compressor with a relatively lower pressure. The method further includes controlling the pressure for each of the plurality of compressors by regulating a speed at which each of the plurality of compressors operates in order to maintain a pressure differential between the adjacent compressors to facilitate the flow of oil from the compressor with the relatively higher pressure to the compressor with the relatively lower pressure.

IPC Classes  ?

• F25B 31/00 - Compressor arrangements
• F25B 41/00 - Fluid-circulation arrangements
• F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems

Abstract

There is described a heat exchanger comprising a plurality of tubes arranged parallel with each other in order to form one or more tube bundles axially inserted into a shell. A first fluid, fed through one or more first inlet nozzles flows inside the tubes and a second fluid, fed through at least one second inlet nozzle, flows inside the shell in order to perform the heat exchange with the first fluid through the walls of the tubes. Inside the shell two or more baffles are formed and arranged perpendicularly with respect to the centre axis of the shell. Between each baffle and the inner walls of the shell there is defined a corresponding window constituted by the cross-section for the passage of the second fluid, with a crossing direction parallel with the centre axis of the shell and the tubes, delimited by the free edge of the respective baffle on the one side and by the inner profile of the shell, at the intersection of the shell with the plane of the baffle, on the other side. The cross-section for the passage of the second fluid placed between two adjacent baffles is constant and has a rectangular shape, that is to say, with all the inner angles congruent with each other. Each baffle has a rectangular shape. Each window has a rectangular shape and has no tubes therein.

IPC Classes  ?

• F28F 9/22 - Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
• F28D 7/16 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
• F28D 7/06 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits having a single U-bend

Abstract

Disclosed is a refrigerant compressor system comprising at least three compressors which are arranged in parallel between a suction line and a pressure line and each of which includes a lubricant sump unit; during operation, the compressors operate in such a way that the pressures in the lubricant sump units of the compressors form a pressure cascade in which the compressors have a gradually slightly decreasing pressure in the associated lubricant sump units in a defined cascade sequence; the lubricant sump units are connected to each other according to the cascade sequence by means of a lubricant line system in order for lubricant to be delivered, and each lubricant sump unit includes a connection to which an insertion element is connected, the insertion element establishing a connection to the lubricant line system and being designed in such a way as to set, for the associated lubricant sump unit, a lubricant level from which lubricant is delivered to the subsequent lubricant sump unit in the cascade sequence.

IPC Classes  ?

• F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluidsPumping installations specially adapted for elastic fluidsMulti-stage pumps specially adapted for elastic fluids
• F04C 29/02 - LubricationLubricant separation

Abstract

A scroll compressor includes a housing and scroll compressor bodies disposed in the housing. The scroll bodies include first and second scroll bodies. The first and second scroll bodies have respective bases and respective scroll ribs that project from the respective bases. The scroll ribs mutually engage, such that the second scroll body is movable relative to the first scroll body for compressing fluid. An oil return tube delivers oil from an upper region of the housing to an oil sump in a lower region of the housing. The relatively longer portion is positioned substantially vertically within the housing. The relatively longer tubular portion is non-circular and may have at least one stepped portion which corresponds to a step in the interior surface of the housing. In some embodiments, the oil return tube has a short tubular portion attached at one end to a relatively longer tubular portion.

IPC Classes  ?

• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• F04C 29/02 - LubricationLubricant separation
• F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
• F04C 27/00 - Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids

Goods & Services

Compressors, in particular refrigerant compressors; Mixing machines; Condensing units consisting of refrigerant compressors, condensers and liquid collectors; Refrigerant liquid collectors; Parts for the aforesaid goods. Chilling machines; Refrigerating installations; Refrigerating machines; Refrigerant condensers; Evaporators; Parts for the aforesaid goods. Installation, repair, maintenance and servicing of compressors, condensers, cooling machines, cooling installations, refrigerating machines, refrigerant condensers, evaporators, refrigerant liquid collectors, condensing units consisting of refrigerant compressors, condensers and liquid collectors and parts and fittings for the aforesaid goods; Consultancy and information in relation to the aforesaid services, included in this class.

Abstract

A refrigeration system includes a plurality of compressors connected in series. Each compressor has an oil sump located in a gravitational bottom of the compressor. A common supply line supplies refrigerant and oil to each of the plurality of compressors. The plurality of compressors includes a lead compressor and one or more non-lead compressors. The common supply line is configured to return more oil to the lead compressor than to the one or more non-lead compressors. Oil sump pressures for the plurality of compressors are maintained such that the lead compressor has the highest oil sump pressure, and the oil sump pressures of the non-lead compressors are successively lower with respect to its position downstream of the lead compressor. Thus, oil is distributed between adjacent compressors from the lead compressor, which is a most upstream compressor, sequentially downstream to the one or more non-lead compressors.

IPC Classes  ?

• F25B 31/00 - Compressor arrangements
• F25B 1/04 - Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
• F04B 39/02 - Lubrication

Abstract

In order to improve an expansion system for a working medium, which is used in particular in a cycle of a system using waste heat, in particular in a system operating in a Rankine cycle, comprising an expansion unit for the working medium coupled with an electrical generator, an inlet for supplying the pressurised working medium and an outlet for the working medium expanded by the expansion unit, it is proposed that the inlet is assigned an aerosol generator unit generating a lubricant aerosol, through which the working medium supplied to the expansion unit flows and which has a flow guide for the working medium having a concentration section, which concentrates the lubricant, which flows with the total mass flow of the working medium supplied to the expansion unit, into aerosol particles, and from which said aerosol particles exit, together with a partial mass flow tapped off from the total mass flow of the working medium, as a lubricant-aerosol mass flow, and that a system of lines is provided, which guides the lubricant-aerosol mass flow to lubrication points of an expansion device of the expansion unit for lubrication by aerosol.

IPC Classes  ?

• F01K 25/06 - Plants or engines characterised by use of special working fluids, not otherwise provided forPlants operating in closed cycles and not otherwise provided for using mixtures of different fluids
• F01K 21/00 - Steam engine plants not otherwise provided for

Goods & Services

Densifiers, In particular refrigerant compressors; Mixing machines; Oil separators; Current generators; Expansion machines; Mechanical installations for operating steam turbines or steam engines with organic working fluids (organic Rankine Cycle installations); Parts for the aforesaid goods. Chilling machines; Refrigerating installations; Refrigerating machines; Refrigerated transport assemblies; Multi-compressor refrigeration installations comprising a number of compressors; Air conditioning fans; Air conditioning installations, except appliances of air conditioners for domestic use; Refrigerant condensers; Evaporators; Condensing units (parts of machines, included in class 11) consisting of refrigerant compressors, condensers and liquid collectors; Refrigerant liquid collectors; Separators for purifying refrigerants; Heat exchangers, other than parts of machines; Heat pumps; Heat recovery installations; Installations for waste heat utilisation; Parts for the aforesaid goods. Installation, repair, maintenance and servicing of compressors, condensers, cooling machines, cooling installations, refrigerating machines, refrigeration units for transport, multi-compressor refrigeration installations, air conditioning apparatus, air conditioning installations, refrigerant condensers, evaporators, refrigerant liquid collectors, expansion machines, power generating machines and parts and fittings for the aforesaid goods; Consultancy and information in relation to the aforesaid services, included in this class.

Goods & Services

Measuring, detection, monitoring, regulating and communication apparatus for operation, control and maintenance of compressors, in particular refrigerant compressors, condensers, oil separators, power generating machines, expansion machines, mechanical installations for operating steam turbines or steam machines with organic working fluids (organic Rankine Cycle installations); Measuring, detection, monitoring, regulating and communication apparatus for operation, control and maintenance of cooling machines, cooling installations, refrigerating machines, refrigeration units for transport, multi-compressor refrigeration installations comprising a number of compressors, air conditioning apparatus, air conditioning installations, refrigerant condensers, evaporators, condensing units (consisting of refrigerant compressors, condensers and liquid collectors), refrigerant liquid collectors, separators for purifying refrigerants; Measuring, detection, monitoring, regulating and communication apparatus for operation, control and maintenance of heat exchangers, heat pumps, heat recovery installations and installations for waste heat utilisation; Computer software for operation of all of the aforesaid measuring, detection, monitoring, regulating and communication apparatus; none of the aforementioned goods for use in actuators or flow control valves; none of the aforementioned goods for or in relation to fire detection or fire protection.

Goods & Services

Frequency converters for drive motors in compressors, in particular coolant compressors; Frequency converters for generators in power generating machines, expansion machines, cooling machines, cooling installations, refrigerating machines, refrigerated transport assemblies, air conditioning apparatus, air conditioning installations, condensing units (consisting of coolant compressors, condensers and liquid collectors), heat pumps, heat recovery installations, installations for waste heat utilisation; Frequency converters for drive motors in ventilators and fans; Parts of the aforesaid goods.

Goods & Services

Compressors, in particular refrigerant compressors; condensers (machines); Oil separators; machines for power generation; Expansion machines; Mechanical installations for operating steam turbines or steam engines with organic working fluids (organic Rankine Cycle installations); Parts for the aforesaid goods; none of the aforementioned goods for use in actuators or flow control valves; none of the aforementioned goods for or in relation to fire detection or fire protection. Measuring, detection, monitoring, regulating and communication apparatus for operation, control and maintenance of compressors, in particular refrigerant compressors, condensers, oil separators, power generating machines, expansion machines, mechanical installations for operating steam turbines or steam machines with organic working fluids (organic Rankine Cycle installations); Measuring, detection, monitoring, regulating and communication apparatus for operation, control and maintenance of cooling machines, cooling installations, refrigerating machines, mobile cooling units, integrated cooling installations consisting of several compressors, air conditioning apparatus, air conditioning installations, refrigerant condensers, evaporators, condensing units (consisting of refrigerant compressors, condensers and liquid collectors), refrigerant liquid collectors, separators for purifying refrigerants; Measuring, detection, monitoring, regulating and communication apparatus for operation, control and maintenance of heat exchangers, heat pumps, heat recovery installations and installations for waste heat utilisation; Software for the operation of all of the aforesaid measuring, detection, monitoring, regulating and communications apparatus, included in this class; none of the aforementioned goods for use in actuators or flow control valves; none of the aforementioned goods for or in relation to fire detection or fire protection. Cooling machines; Refrigerating installations; Refrigerating machines; mobile cooling units; integrated cooling installations consisting of several compressors; Air conditioning apparatus; Air conditioning installations; Refrigerant condensers; Evaporators; Condensing units (parts of machines, included in class 11) consisting of refrigerant compressors, condensers and liquid collectors; Refrigerant liquid collectors; Separators for purifying refrigerants; Heat exchangers; Heat pumps; Heat recovery installations; Installations for waste heat utilisation; Parts for the aforesaid goods; none of the aforementioned goods for use in actuators or flow control valves; none of the aforementioned goods for or in relation to fire detection or fire protection. Installation, repair, maintenance and servicing of compressors, condensers, cooling machines, cooling installations, refrigerating machines, mobile cooling units, integrated cooling installations, air conditioning apparatus, air conditioning installations, refrigerant condensers, evaporators, refrigerant liquid collectors, expansion machines, power generating machines and parts and fittings for the aforesaid goods; Consultancy and information in relation to the aforesaid services, included in this class; none of the aforementioned services in relation to actuators or flow control valves; none of the aforementioned services in relation to devices or software for fire detection or fire protection.

Goods & Services

Software for operating compressors, in particular refrigerant compressors, condensers, oil separators, power generating machines, expansion machines, mechanical installations for operating steam turbines or steam machines with organic working fluids (organic Rankine Cycle installations); Software for operating cooling machines, cooling installations, refrigerating machines, refrigeration units for transport, multi-compressor refrigeration installations, air conditioning apparatus, air conditioning installations, refrigerant condensers, evaporators, condensing units (consisting of refrigerant compressors, condensers and liquid collectors), refrigerant liquid collectors, separators for purifying refrigerants, heat exchangers, not parts of machines, heat pumps, heat recovery installations, installations for waste heat utilisation; Software for operating external measuring, detection, monitoring, regulating and communications apparatus, integrated in all of the aforesaid goods or used in the operation thereof.

Goods & Services

Densifiers, In particular refrigerant compressors; Mixing machines; Oil separators; Current generators; Expansion machines; Mechanical installations for operating steam turbines or steam engines with organic working fluids (organic Rankine Cycle installations); Parts for the aforesaid goods. Chilling machines; Refrigerating installations; Refrigerating machines; Refrigerated transport assemblies; Multi-compressor refrigeration installations comprising a number of compressors; Air conditioning fans; Air conditioning installations; Refrigerant condensers; Evaporators; Condensing units (parts of machines, included in class 11) consisting of refrigerant compressors, condensers and liquid collectors; Refrigerant liquid collectors; Separators for purifying refrigerants; Heat exchangers, other than parts of machines; Heat pumps; Heat recovery installations; Installations for waste heat utilisation; Parts for the aforesaid goods. Installation, repair, maintenance and servicing of compressors, condensers, cooling machines, cooling installations, refrigerating machines, refrigeration units for transport, multi-compressor refrigeration installations, air conditioning apparatus, air conditioning installations, refrigerant condensers, evaporators, refrigerant liquid collectors, expansion machines, power generating machines and parts and fittings for the aforesaid goods; Consultancy and information in relation to the aforesaid services, included in this class.

Goods & Services

Densifiers, In particular refrigerant compressors; Mixing machines; Oil separators; Current generators; Expansion machines; Mechanical installations for operating steam turbines or steam engines with organic working fluids (organic Rankine Cycle installations); Parts for the aforesaid goods. Chilling machines; Refrigerating installations; Refrigerating machines; Refrigerated transport assemblies; Multi-compressor refrigeration installations comprising a number of compressors; Air conditioning fans; Air conditioning installations; Refrigerant condensers; Evaporators; Condensing units (parts of machines, included in class 11) consisting of refrigerant compressors, condensers and liquid collectors; Refrigerant liquid collectors; Separators for purifying refrigerants; Heat exchangers, other than parts of machines; Heat pumps; Heat recovery installations; Installations for waste heat utilisation; Parts for the aforesaid goods. Installation, repair, maintenance and servicing of compressors, condensers, cooling machines, cooling installations, refrigerating machines, refrigeration units for transport, multi-compressor refrigeration installations, air conditioning apparatus, air conditioning installations, refrigerant condensers, evaporators, refrigerant liquid collectors, expansion machines, power generating machines and parts and fittings for the aforesaid goods; Consultancy and information in relation to the aforesaid services, included in this class.

Goods & Services

Densifiers, In particular refrigerant compressors; Mixing machines; Oil separators; Current generators; Expansion machines; Mechanical installations for operating steam turbines or steam engines with organic working fluids (organic Rankine Cycle installations); Parts for the aforesaid goods; none of the aforementioned goods for use in actuators or flow control valves; none of the aforementioned goods for or in relation to fire detection or fire protection. Chilling machines; Refrigerating installations; Refrigerating machines; Refrigerated transport assemblies; Multi-compressor refrigeration installations comprising a number of compressors; Air conditioning fans; Air conditioning installations; Refrigerant condensers; Evaporators; Condensing units (parts of machines, included in class 11) consisting of refrigerant compressors, condensers and liquid collectors; Refrigerant liquid collectors; Separators for purifying refrigerants; Heat exchangers, other than parts of machines; Heat pumps; Heat recovery installations; Installations for waste heat utilisation; Parts for the aforesaid goods; none of the aforementioned goods for use in actuators or flow control valves; none of the aforementioned goods for or in relation to fire detection or fire protection. Installation, repair, maintenance and servicing of compressors, condensers, cooling machines, cooling installations, refrigerating machines, refrigeration units for transport, multi-compressor refrigeration installations, air conditioning apparatus, air conditioning installations, refrigerant condensers, evaporators, refrigerant liquid collectors, expansion machines, power generating machines and parts and fittings for the aforesaid goods; Consultancy and information in relation to the aforesaid services, included in this class; none of the aforementioned services in relation to actuators or flow control valves; none  of the aforementioned services in relation to devices or software for fire detection or fire protection.

Abstract

The invention relates to a compressor for refrigerant having a compressor housing, said compressor housing being provided with a suction inlet and a pressure outlet, said compressor comprising a compression unit, arranged in a compression housing section of said compressor housing and an electric motor arranged in a motor housing section of said compressor housing, said electric motor comprising a stator arranged within a stator receiving sleeve of said motor housing section and a rotor surrounded by said stator and arranged on a drive shaft of said electric motor for rotation about an axis of rotation together with said drive shaft, said stator comprising a stator core having a stack of laminations and extending parallel to said axis of rotation from a first front side to a second front side, said stator having windings extending through said stator core and forming end windings arranged in front of said front surfaces, and a channel for guiding at least a portion of said refrigerant entering through said suction inlet along an outer side of said stator before entering said compression unit.

IPC Classes  ?

• H02K 9/14 - Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
• H02K 1/18 - Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures

Abstract

The present invention relates to an apparatus and to a method for carrying out a cold steam process. The apparatus has a motor-operated primary compressor (C1) which is designed to draw in a mass flow of a fluid, serving as refrigerant, at evaporator pressure and to compress this mass flow to high pressure, and a high-pressure heat exchanger (H) which is designed to cool the mass flow of the fluid at high pressure, to increase the density and to reduce a temperature of the fluid. Also provided is an expander (E) which is designed to expand to evaporator pressure, so as to perform work, the mass flow of the fluid coming from the high-pressure heat exchanger (H), and an evaporator (V) which is designed to take up heat such that the density of the fluid decreases as it passes through the evaporator and the temperature of the mass flow coming from the expander (E) at evaporator pressure, and of the fluid guided through the evaporator (V), increase. Finally, there is a sub-cooler (U), which is connected downstream of the high-pressure heat exchanger (H) and upstream of the expander (E), wherein downstream of the sub-cooler (U) and upstream of the expander (E) part of the fluid can be diverted from the mass flow and can be expanded by means of a high-pressure control valve (TH) to an intermediate pressure, such that the fluid then, at intermediate pressure, absorbs heat in counter-flow in the sub-cooler (U), and thus additionally sub-cools the mass flow which is at high pressure, and a high-pressure compressor (C2) which is mechanically directly connected to the expander (E) and is designed to compress, to high-pressure, only that part of the fluid that is diverted upstream of the expander (E) in the sub-cooler (U) and guided in counter-flow, and to mix this fluid, upstream of the high-pressure heat exchanger (H) with the mass flow coming from the motor-operated primary compressor (C1).

IPC Classes  ?

• F25B 11/02 - Compression machines, plants or systems, using turbines, e.g. gas turbines as expanders

Abstract

Disclosed is a refrigeration system comprising a refrigerant circuit (10), a heat exchanger (34), an expansion member (38) which, in the active state, expands the entire mass flow (G) of the refrigerant, in said process generating a main mass flow (H) of liquid refrigerant and an additional mass flow (Z) of gaseous refrigerant, both of which enter an intermediate pressure accumulator (42), the refrigeration system further comprising at least one normal cooling stage (52) which expands a normal cooling mass flow (N) to a low pressure in at least one normal cooling expansion unit (54), in said process making available refrigerating power for normal cooling, the refrigeration system also comprising a refrigerant compressor unit (12) that compresses the normal cooling mass flow from the low pressure to a high pressure, and a parallel compressor (164) which, in a parallel compression mode of the refrigerant circuit, sucks in refrigerant from the intermediate pressure accumulator and compresses same to a high pressure. In order to increase the efficiency of a refrigeration system of this type, the power of the parallel compressor is controlled by a controller (40), the controller determines at least one reference variable representing a load condition of the refrigerant circuit, the controller determines a desired intermediate pressure value on the basis of the at least one reference variable at least during operation of the parallel compressor, and the controller adjusts the intermediate pressure in accordance with the desired intermediate pressure value at least during operation of the parallel compressor.

IPC Classes  ?

• F25B 1/10 - Compression machines, plants or systems with non-reversible cycle with multi-stage compression
• F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems
• F25B 5/02 - Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
• F25B 9/00 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
• F25B 41/04 - Disposition of valves

Abstract

A scroll compressor with unfastened thrust plate includes a compressor housing and scroll compressor bodies disposed in the compressor housing. The scroll bodies include a fixed scroll body and a moveable scroll body. The fixed and moveable scroll bodies have respective bases and respective scroll ribs that project from the respective bases. The scroll ribs mutually engage. The moveable scroll body is movable relative to the fixed scroll body for compressing fluid. An upper bearing member provides axial thrust support to the moveable scroll compressor body through a bearing support via an unfastened thrust plate that is located between the upper bearing member and the moveable scroll body. The unfastened thrust plate has no means of attachment to the upper bearing member or to the moveable scroll body.

IPC Classes  ?

• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluidsPumping installations specially adapted for elastic fluidsMulti-stage pumps specially adapted for elastic fluids

Goods & Services

(1) Refrigerants; heat transfer fluids; (1) Advertising the goods and services of others; drafting and publication of publicity texts for others; market research; public relations services; business management consultancy and advisory services; mediation of trade business for third parties; retail and wholesale services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; management and compilation of computerised databases; updating and maintenance of data in computer databases; computerized management of databases; computerized file management (2) Financing services, namely, financing of heating, ventilation, air conditioning, and refrigeration machines, and of electric power generators; lease-purchase financing (3) Providing access to a computer database in the field of heating, ventilation, air conditioning, and refrigeration; providing multiple-user access to global computer information networks for the transfer and dissemination of a wide range of information in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators (4) Technology consultancy services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; engineering services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; technical testing, certification, and quality control services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; engineering design and consultancy, namely, technical design and consultancy services in the field of heating, ventilation, air conditioning, and refrigeration, and of electric power generators; testing of heating, ventilation, air conditioning, and refrigeration machines, and of electric power generators; provision of surveys [technical], namely, technical surveying; technical supervision and inspection of heating, ventilation, air conditioning, and refrigeration machines, and of electric power generators; services for monitoring of heating, ventilation, air conditioning, and refrigeration machines, and of electric power generators; monitoring of computer systems by remote access; product development of heating, ventilation, air conditioning, and refrigeration machines, and of electric power generators; product design of heating, ventilation, air conditioning, and refrigeration machines, and of electric power generators; product testing of heating, ventilation, air conditioning, and refrigeration machines, and of electric power generators; software development and implementation, and computer programming; design, maintenance and up-dating of computer software

Goods & Services

(1) Industrial oils; motor oil; (2) Compressors, namely, refrigerant compressors for recovering and recycling refrigerant gases; condensers (machines), namely, refrigeration condensers; oil separators; mufflers (parts of machines), namely, mufflers for discharge gas lines in refrigeration plants; clack valves (parts of machines); machines for power generation, namely, electric power generators; expansion machines, namely, machines for power generation through expansion of pressurized fluids; organic Rankine Cycle electric power generators; separators for cleaning refrigerants, namely, oil separators for refrigerants (3) Measuring apparatus, namely, temperature sensors, pressure sensors, flow meters, tachometers; sensors and detectors, namely, pressure, temperature, and fluid level sensors; controllers (regulators), namely, temperature regulators, voltage regulators; frequency inverters, namely, inverters for power supply and electronic frequency converters for electric motors; electronic diagnostic and motor protection devices, apparatus, modules and instruments for compressors, namely, electrical control and diagnostic systems for heating, ventilation, air conditioning, and refrigeration machines; electrical control systems for cooling, refrigeration, air conditioning and heating compressors; communication apparatus, namely, computer hardware for telecommunication with remote cooling, refrigeration, air conditioning and heating equipment, and with electric power generators; computer software for identifying and ordering spare parts for heating, ventilation, air conditioning, and refrigeration machines, and for electric power generators; power operated valves, namely, solenoid-operated valves; valves operated by changes in pressure, namely, pressure relief valves; computer software for setup, configuration, monitoring, and troubleshooting of heating, ventilation, air conditioning, and refrigeration machines, and of electric power generators; downloadable applications for handheld computers to enable the monitoring and control of digital refrigerant sliders; downloadable electronic publications in the nature of brochures, manuals, and informational sheets in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation; electronic publications recorded on computer media in the nature of brochures, manuals, and informational sheets in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation (4) Refrigerating and freezing equipment, namely, refrigerating units and freezer units, and parts therefor; cooling installations, namely, air conditioners; refrigerating machines; air conditioners for vehicles, trucks, buses, agricultural vehicles, agricultural machines, construction vehicles, construction machines, trains, ships, and transport containers; air-conditioning apparatus; air conditioning installations; cooling installations for air conditioning consisting of several compressors; refrigeration condensers; cooling evaporators; condensing units consisting of compressor, condenser and liquid collector for refrigerants; heat exchangers; heat pumps; valves for refrigerating apparatus, refrigerating machines and air conditioning apparatus, namely, valves for industrial refrigerators and air conditioners; parts of the aforesaid goods, namely, electric motors for machines, compressor valve plates, pistons, connecting rods for machines, motors, and engines gaskets for motors, compressors, and pumps (5) Printed publications in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation printed promotional material, namely, brochures, manuals, pamphlets, booklets, leaflets, informational flyers, and informational sheets in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation; printed informational brochures in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation; instructional and teaching material (except apparatus), namely, manuals, and product guides in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation; packaging materials, namely, packaging boxes of cardboard (6) Clothing, namely, casual clothing; headgear, namely, hats and caps (1) Installation, repair, maintenance and servicing of heating, ventilation, air conditioning, and refrigeration machines, and of electric power generators (2) Provision of training and education in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation; arranging and conducting of training events, conducting of courses, seminars and workshops in the field of heating, ventilation, air conditioning, and refrigeration, and electrical power generation; arranging and conducting of conferences, congresses and symposiums in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation; providing electronic publications, namely, brochures, manuals, and informational sheets, in the field of heating, ventilation, air conditioning, and refrigeration, and electric power generation

Abstract

A suction fitting coupled to a scroll compressor that has an outer housing with an inside diameter and a suction port defined in a wall of the outer housing. A suction duct is disposed inside the outer housing at a spaced distance from the wall of the outer housing. The suction duct defines an entrance port aligned with the suction port. The suction fitting includes a first member being generally cylindrical, and a second member being generally cylindrical. The second member is disposed inside the first member with a portion of the second member extending into the outer housing through the suction port, spanning the spaced distance to the suction duct, and coupling with the entrance port of the suction duct. Neither the first member nor the second member includes a suction screen for filtering out solid contaminants in a flow of refrigerant.

IPC Classes  ?

• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents

Abstract

A fixed scroll compressor body includes a scroll compressor body casting. The casting has a central body portion having a plate-like base with a spiral scroll rib projecting from the base at a right angle thereto. The spiral scroll rib includes a volume between the spiraled ribs for the compressing of refrigerant. The spiral scroll rib spirals from a central region of the plate-like base to an outer wall of the central body portion. The casting further includes a first inward-protruding portion that protrudes from the outer wall into the volume. A distance that the first inward-protruding portion protrudes into the volume is greater than a thickness of the first inward-protruding portion such that removal of the first inward-protruding portion results in a first intake opening in the outer wall. The first intake opening provides a path for a flow of refrigerant into the volume.

IPC Classes  ?

• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents

Abstract

A scroll compressor includes a housing comprising a cylindrical shell arranged about a vertically-extending axis, and scroll compressor bodies, including a fixed scroll compressor body and a movable scroll compressor body. The scroll compressor bodies are disposed in the housing and have respective bases and respective scroll ribs that project from the respective bases and which mutually engage for compressing fluid. An electrical motor has a stator and rotor. There is a drive shaft and rotor that acts upon the drive shaft that acts upon the scroll compressor bodies to facilitate relative movement between the scroll compressor bodies. A separator plate is disposed in the housing to separate a high-pressure region from a lower pressure region. The separator plate has a central opening. A perimeter of the central opening is defined by a curved inner wall. The curved inner wall is joined to an outer wall via an annular plate.

IPC Classes  ?

• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• F04C 19/00 - Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids

Abstract

A compressor for compressing fluid is provided. The compressor includes a housing having a housing inlet for receiving fluid and a housing outlet for discharging the fluid. A compressing mechanism is adapted to compress the fluid toward the housing outlet. The compressing mechanism is disposed in the housing. A drive unit is operatively connected to the compressing mechanism for driving the compressing mechanism to compress fluid. A suction duct is disposed in the housing. The suction duct extends downward from the housing inlet toward a sump defined in the housing. The suction duct is configured for attachment to a motor housing. The suction duct has a duct inlet fluidically connected with the housing inlet, and defines a passage fluidically connecting the duct inlet with an interior cavity of the housing. A suction gas filter disposed in the suction duct, and having a filter screen positioned downstream of the duct inlet.

IPC Classes  ?

• F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents

Abstract

A discharge check valve assembly for a compressor having a discharge opening. The discharge check valve assembly includes a valve body adapted to be positioned at the discharge opening of the compressor. A discharge tube is assembled to the valve body, and a check valve member is disposed in the valve body. In certain embodiments, the check valve member is biased in a closed position by a biasing spring. A weld block member is positioned at an interface between the valve body and the discharge tube, and a first weld couples the discharge tube and the valve body at a first weld point.

IPC Classes  ?

• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• F16K 15/02 - Check valves with guided rigid valve members

Goods & Services

chemical refrigerants; heat transfer fluids for industrial use Industrial oils; motor oil Compressors, in particular refrigerant compressors, and parts therefor Measuring, detecting and monitoring instruments, indicators and controllers, for use in measuring, detecting and monitoring temperature, pressure, oil level, liquid level, refrigerant level, current, voltage and rotational speed, for use in refrigeration units, air conditioning units and deep freezing units; frequency inverters, electronic control valves and solenoid valves for use in refrigeration units, air conditioning units and deep freezing units; computer software for controlling and diagnosing problems with compressors for use in refrigeration units, air conditioning units and deep freezing units; computer software for controlling temperature sensors for use in refrigeration units, air conditioning units and deep freezing units; application software for digital refrigerant sliders for use in refrigeration units, air conditioning units and deep freezing units; downloadable electronic publications, namely, technical guides and operation manuals for refrigeration units, air conditioning units and deep freezing units Refrigerating and freezing equipment, namely, refrigerating units and deep freezing units, and parts therefor; cooling installations, namely, air conditioning units; refrigerating machines; mobile cooling units for industrial use; integrated cooling installations for air conditioning consisting of several compressors; air-conditioning apparatus; air conditioning installations; refrigerant condensers; evaporators for air conditioners; condensing units consisting of compressor, condenser and liquid collector for refrigerants, being parts of refrigerators; liquid collectors for refrigerants, being parts of refrigerators; separators for the purification of refrigerants; heat exchangers, being parts of air conditioners; heat pumps; fittings, namely, fittings for refrigeration units, air conditioning units and deep freezing units and installations; valves for refrigerating apparatus, refrigerating machines and air conditioning apparatus; heat recovery units as parts of refrigeration units or air conditioning units; waste heat utilization units as parts of refrigeration units or air conditioning units; parts of the aforesaid goods; refrigerant condensers, namely, condensers for use in refrigeration units, air conditioning units and deep freezing units Installation, repair, maintenance and servicing of compressors, condensers, refrigerating apparatus, cooling installations, refrigerating machines, mobile cooling units, integrated cooling installations, air-conditioning apparatus, air-conditioning installations, refrigerant condensers, evaporators, liquid collectors for refrigerants in refrigeration units or air conditioning units, expansion machines, machines for power generation, and parts and accessories of the aforesaid goods; consultancy and information in relation to the aforesaid services Engineering design and consultancy in the field of refrigeration, cooling and heating; technical testing services in the field of refrigeration, cooling and heating; product development in the field of refrigeration, cooling and heating; product design in the field of refrigeration, cooling and heating; product testing in the field of refrigeration, cooling and heating

Goods & Services

Refrigerants; heat transfer fluids. Industrial oils; motor oil. Compressors, in particular refrigerant compressors; condensers (machines); oil separators; mufflers (parts of machines); valves (parts of machines); valves (parts of engines); power operated valves; valves operated by changes in pressure; clack valves (parts of machines); machines for power generation; expansion machines; organic rankine cycle systems; parts of the aforesaid goods. Measuring apparatus; sensors and detectors; measuring, detecting and monitoring instruments, indicators and controllers; controllers (regulators); frequency inverters; electric control valves; solenoid valves; electronic diagnostic and motor protection devices, apparatus, modules and instruments for compressors; communication apparatus; computer software; application software for digital refrigerant sliders; electronic publications (downloadable); electronic publications recorded on computer media; electronic databases. Refrigerating and freezing equipment; refrigerating apparatus; cooling installations; refrigerating machines; mobile cooling units; integrated cooling installations consisting of several compressors; air-conditioning apparatus; air conditioning installations; refrigerant condensers; evaporators; condensing units consisting of compressor, condenser and liquid collector for refrigerants; liquid collectors for refrigerants; separators for cleaning refrigerants; heat exchangers; heat pumps; valves for refrigerating apparatus, refrigerating machines and air conditioning apparatus; heat recovery units; waste heat utilization units; parts of the aforesaid goods. Printed matter; printed promotional material; printed informational brochures; instructional and teaching material (except apparatus); stationery; office requisites (except furniture); packaging materials. Clothing; headgear. Advertising; drafting and publication of publicity texts; marketing; market research; public relations services; business consultancy and advisory services; mediation of trade business for third parties; retail and wholesale services relating to compressors, condensers, refrigerating apparatus, cooling installations, refrigerating machines, mobile cooling units, air-conditioning apparatus, air-conditioning installations, refrigerant condensers, evaporators, liquid collectors for refrigerants, expansion machines, machines for power generation and parts and accessories of the aforesaid goods; promotional sponsorship; compilation and systemization of information into computer databases; collection, processing and output of data in computer databases; updating and maintenance of data in computer databases; computerized management of databases; computerized file management. Financing services; lease-purchase financing; financial sponsorship. Installation, repair, maintenance and servicing of compressors, condensers, refrigerating apparatus, cooling installations, refrigerating machines, mobile cooling units, integrated cooling installations, air-conditioning apparatus, air-conditioning installations, refrigerant condensers, evaporators, liquid collectors for refrigerants, expansion machines, machines for power generation and parts and accessories of the aforesaid goods; consultancy and information in relation to the aforesaid services, as far as included in this class. Telecommunications; transfer of information and data via online services and the internet; telecommunication services provided via internet platforms and portals; providing access to electronic communications networks and electronic databases; providing access to content, websites and internet portals. Provision of training and education; arranging and conducting of training events, conducting of courses, seminars and workshops; arranging and conducting of conferences, congresses and symposiums; publishing services; providing electronic publications. Science and technology services; engineering services; IT services; technical testing and certification (quality control); engineering design and consultancy; technical testing services; provision of surveys [technical]; technical supervision; and inspection; services for monitoring industrial processes; monitoring of computer systems by remote access; product development; product design; product testing; software development, programming and implementation; design, maintenance and up-dating of computer software; consultancy and information in relation to the aforesaid services, as far as included in this class.

Abstract

The problem addressed by the invention is that of improving the operating reliability of a refrigerant compressor system comprising a first refrigerant line that conducts expanded refrigerant, a second refrigerant line that conducts compressed refrigerant, at least one refrigerant compressor, which is arranged between the first and the second refrigerant lines and which is driven by a motor, and a control unit for operating the refrigerant compressor system. This problem is solved in that the control unit has a first central processor unit and at least one input/output unit for control variables that communicates with the first central processor unit, and that a second central processor unit is associated with the first central processor unit, which second central processor unit takes over the control functions for controlling the refrigerant compressor system if the first central processor unit fails.

IPC Classes  ?

• F04B 27/24 - Control not provided for in a single group of groups
• F04B 39/12 - CasingsCylindersCylinder headsFluid connections
• F04B 49/06 - Control using electricity

Abstract

The invention relates to a control unit for operating a refrigerant compressor apparatus, wherein the refrigerant compressor apparatus comprises a first refrigerant line system for expanded refrigerant, a second refrigerant line system for compressed refrigerant and at least a refrigerant compressor operating between the first refrigerant line system and the second refrigerant line system, said refrigerant compressor being driven by a separate motor and the control unit comprising an operating unit. The aim of the invention is to improve said control unit in such a manner that it can be operated in a user-friendly manner. In order to achieve said aim, it is proposed that the operating unit has a memory for image element data for the display of at least one component of the refrigerant compressor apparatus, that the operating unit has a visualization unit, by which a visualization of said at least one component as a component image element on the visualization unit is carried out using the image element data of the at least one component of the refrigerant compressor apparatus.

IPC Classes  ?

• F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems