This application provides a centrifugal compressor and a refrigeration heat pump unit, the centrifugal compressor includes a first compression chamber including a first inlet portion that includes a first variable guide vane, and a first outlet portion. A second compression chamber including a second inlet portion that includes a second variable guide vane, and a second outlet portion. A first impeller rotatably disposed inside the first compression chamber and disposed adjacent to the first variable guide vane. A second impeller rotatably disposed inside the second compression chamber and disposed adjacent to the second variable guide vane. A third impeller rotatably disposed inside the first compression chamber and located downstream of the first impeller. A first bypass pipe allowing a discharge flow passage of the third impeller to communicate with an inlet of the third impeller.
This application provides a control method and control device for an air conditioning system, and an air conditioning system using the control method or including the control device. When switched to heating mode, a hot gas valve and a liquid injection valve are opened, and a main heat valve is closed. A condenser is excluded from refrigerant circulation. The refrigerant is heated by a motor of a compressor and exchanges heat with the outside via an evaporator to raise indoor ambient temperature. Part of the refrigerant returns to the compressor, while the rest enters a liquid reservoir via the liquid injection valve to reduce refrigerant flow rate and improve energy utilization. When operating for a specified time or when the indoor ambient temperature reaches a specified heating temperature, the liquid injection valve is closed to retain sufficient refrigerant in the heating circulation and avoid continuous decrease in heating performance.
Described herein is a heat exchanger assembly that comprises a first heat exchanger comprising a first inlet header, a first outlet header, and a plurality of first heat exchange tubes fluidically connected to and extending between the first inlet header and the first outlet header. The heat exchanger assembly further comprises a second heat exchanger comprising a second inlet header, a second outlet header, and a plurality of second heat exchange tubes fluidically connected to and extending between the second inlet header and the second outlet header. Further, the heat exchanger assembly comprises a first outlet connector connected to a first end of the first outlet header, and a second outlet connector connected to a first end of the second outlet header, wherein a second end, opposite to the first end, of the respective first outlet header and the second outlet header are adjacent to each other.
A method for managing an energy storage device in an air conditioning system includes determining capacity of an AC power grid connected to the air conditioning system; in response to the AC power grid having high capacity, operating the air conditioning system in a first mode; and in response to the AC power grid having low capacity, operating the air conditioning system in a second mode.
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
An assembly includes a fluid conditioning system including a cascade module and an active charge compensator integrated into the fluid conditioning system. The fluid conditioning system is transformable between a first mode and a second mode. In the first mode, the fluid conditioning system includes a first vapor compression loop and a second vapor compression loop. The first vapor compression loop and the second vapor compression loop are thermally coupled at the cascade module and the second vapor compression loop is fluidly separate from the first vapor compression loop. In the second mode, the fluid conditioning system includes a single vapor compression loop. The active charge compensator is operable to control a working fluid charge within the fluid conditioning system based on the mode of operation selected from the plurality of modes.
F25B 7/00 - Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
F25B 45/00 - Arrangements for charging or discharging refrigerant
This application provides a screw compressor and a slide valve thereof. The slide valve includes: a valve body having a cylindrical shape extending in an axial direction, with a side surface having a pressure discharge surface that matches an outer peripheral contour of a rotor of the screw compressor; a discharge chamber provided at an end of the pressure discharge surface along the axial direction; a slider provided in the discharge chamber, and configured to slide along a radial direction of the valve body, a shape of an outer edge of the slider matching a shape of the pressure discharge surface; and a spring connected to the slider and configured to drive the slider to slide to a position where the outer edge of the slider is flush with the pressure discharge surface.
F04C 2/16 - Rotary-piston machines or pumps 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 15/00 - Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups
F16K 3/30 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing Details
This application provides a refrigeration system. By a regenerator with an inlet on a primary side connected to an outlet of a condenser, an outlet on the primary side connected to an inlet of an expansion valve, an inlet of a secondary side connected to an outlet of an evaporator, and an outlet of the secondary side connected to an inlet of a compressor, a medium-temperature and high-pressure refrigerant liquid discharged from the condenser and a part of a low-temperature and low-pressure refrigerant gas discharged from the evaporator exchange heat in the regenerator, thereby improving subcooling of the refrigerant liquid at the inlet of the expansion valve and superheating of the refrigerant gas at the inlet of the compressor.
F25B 43/02 - Arrangements for separating or purifying gases or liquidsArrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from the refrigerant
Described herein is a system for controlling an HVAC unit. The system comprises a controller configured to monitor temperature of air upstream and downstream of an indoor coil of the HVAC unit, and control, based on the monitored temperature, speed of one or more fans configured with the indoor coil to maintain a temperature difference across the indoor coil.
F24F 11/81 - Control systems characterised by their outputsConstructional details thereof for controlling the temperature of the supplied air by controlling the air supply to heat-exchangers or bypass channels
F24F 11/523 - Indication arrangements, e.g. displays for displaying temperature data
Disclosed herein is a system for power supply management in a vehicle equipped with a transport refrigeration unit (TRU). The system comprises a controller connected to the TRU. Controller comprises a processor with access to a memory storing instructions executable by processors, which causes controller to adapt operation of one or more components of the TRU to adjust electrical power consumption of the TRU to a determined power level, based on one or more of electrical attributes of electrical power supplied to battery, real-time electrical power consumption of TRU, and real-time state of charge (SOC) of battery.
B60L 1/00 - Supplying electric power to auxiliary equipment of electrically-propelled vehicles
B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
B60L 58/12 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
13.
SYSTEM AND METHOD FOR CONTROLLING OPERATION OF A HEAT PUMP
Described herein is a system and a method for controlling operation of a heat pump. The system comprises an electronic expansion valve (EXV) configured to fluidically connect an indoor unit of the heat pump with an outdoor unit of the heat pump, and a controller operatively connected to the EXV, where the controller is configured to issue a first control signal, during a first defrost mode, to at least partially close the EXV to increase discharge pressure in an outdoor coil of the outdoor unit to facilitate defrosting of the outdoor coil.
An electrical architecture for an electric/engineless trailer refrigeration unit (ETRU) is provided. The electrical architecture includes a battery, multiple auxiliary direct current (DC) power sources, multiple auxiliary alternating current (AC) power sources, TRU components, a master controller and a reconfigurable power conversion unit (RPCU). The RPCU is configurable by the master controller to transmit electrical power between the battery, the multiple auxiliary DC power sources, the multiple auxiliary AC power sources and the TRU components in accordance with current operational conditions, power levels of the battery, the multiple auxiliary DC power sources and the multiple auxiliary AC power sources and power demands of the TRU components.
B60R 16/033 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems characterised by the use of electrical cells or batteries
B60P 3/20 - Vehicles adapted to transport, to carry or to comprise special loads or objects for transporting refrigerated goods
F25D 11/00 - Self-contained movable devices associated with refrigerating machinery, e.g. domestic refrigerators
H02J 5/00 - Circuit arrangements for transfer of electric power between ac networks and dc networks
On-line retail store services featuring parts and replacement parts for vehicle engines, transport refrigeration units and equipment for trucks, trailers and shipping containers; Catalog ordering service featuring parts and replacement parts for vehicle engines, transport refrigeration units and equipment for trucks, trailers and shipping containers
Disclosed herein is an air handling unit (AHU) for use with an air conditioning system. The AHU comprises a housing defining the shape of the AHU, through which air is moved; a heat exchanger is disposed inside the housing. The heat exchanger is configured to facilitate a transfer of heat to and from the air moving through the housing. The AHU further comprises a diagonal-flow fan disposed inside the housing, wherein an air inflow into the fan and/or an air flow path through the fan is substantially axial, aligned along an axis of rotation of the fan, and wherein the AHU has a height-to-width ratio in a range between 1.8 and 2.0.
This application provides a water chilling unit including a compressor and a condenser, in which an outlet of the compressor communicates with an inlet of the condenser through a compressor outlet pipeline, and a check valve with a magnet is also provided in a discharge pipeline. During normal operation of the water chilling unit, the check valve is maintained at the maximum opening through attraction of opposite magnetic poles, and when the water chilling unit stops operating, the closure of the check valve is cushioned through repulsion of like magnetic poles.
This application provides a fluid distributor and a heat exchanger. The fluid distributor includes: a first plate-shaped member in which an inlet flow passage is formed; a second plate-shaped member in which a first outlet flow passage and a second outlet flow passage spaced apart in a height direction are formed; a flow guide frame sealingly fixed between the first plate-shaped member and the second plate-shaped member, having a first flow guide space and a second flow guide space partitioned inside. The flow guide frame includes a flow equalizing plate, and the flow equalizing plate includes a flow equalizing plate bottom portion, and flow equalizing plate extension portions which extend upward from the flow equalizing plate bottom portion to two sides of the flow equalizing plate bottom portion while being inclined in the height direction. This application improves uniformity and a fault tolerance of a refrigerant distribution.
F28F 1/34 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
20.
POWER CONVERTER DESIGN FOR ELECTROCALORIC AIR CONDITIONING SYSTEMS
A heat transfer system includes a first electrocaloric module comprising a first electrocaloric material, a first high-side electrode, and a first low-side electrode, arranged to impart an electric field to the electrocaloric material; a second electrocaloric module comprising a second electrocaloric material, a second high-side electrode, and a second low-side electrode, arranged to impart an electric field to the electrocaloric material; a power convertor including a power source configured to supply power to a high side bus and a low side bus; a controller configured to operate the power convertor through a plurality of stages.
H02M 3/07 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode
F25B 21/00 - Machines, plants or systems, using electric or magnetic effects
H02M 1/08 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
21.
FLUID DISTRIBUTOR FOR A SHELL-AND-TUBE FLOODED EVAPORATOR
Described herein is a distributor for a shell-and-tube flooded evaporator. The distributor comprises a first header comprising one or more first outlets located along a length at a bottom side of the first header, and a second header comprising one or more second outlets located along a length at a bottom side of the second header. The distributor is configured to be disposed within a shell associated with the evaporator such that the first header and the second header extend along a length, on opposite sides of an inner wall of the shell, and the first header and the second header are fluidically connected to one or more refrigerant inlet tubes provided on the shell.
Described herein is a device for displaying subcooling data of a refrigeration circuit associated with an HVAC system. The device comprises a display module having a predefined display area configured to display at least two characters at a time, wherein the display module is configured to receive subcooling data of the refrigeration circuit and display the received subcooling data over the predefined display area in alphanumeric and/or string characters while scrolling or paging the data thereover in a predefined direction and at a predefined interval.
G09G 3/18 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments by control of light from an independent source using liquid crystals
23.
POWER SYSTEM FOR TRANSPORTATION REFRIGERATION UNIT AND METHOD FOR CONTROLLING POWER THEREOF
A power system for a vehicle having a TRU is disclosed. The power system includes an energy storage unit adapted to supply power to the TRU, and includes an axle generator electrically connected to the energy storage unit to supply power to the energy storage unit and the TRU. The power system includes a pressure sensor to sense ambient pressure, and includes a power supply system. The power supply system is configured to determine a SoC of the energy storage unit, and is configured to determine an altitude of the power system based on the ambient pressure. The power supply system is configured to determine a power output of the axle generator, and configured to adjust a power supplied by the energy storage unit and the axle generator to the TRU based on the determined SoC, the determined altitude, and the determined power output.
B60P 3/20 - Vehicles adapted to transport, to carry or to comprise special loads or objects for transporting refrigerated goods
B60R 16/033 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems characterised by the use of electrical cells or batteries
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
This application provides a refrigeration apparatus using a main fan to cool an electronic control device while meeting heat exchange requirements of a heat exchanger. By arranging a first air duct and a second air duct in parallel, and controlling a relationship between a cross-sectional area of a first air duct inlet and a cross-sectional area of a second air duct outlet, and a relationship between a cross-sectional area of a second air duct inlet and the cross-sectional area of the second air duct outlet, air flowing into the first air duct after heat exchange with a refrigerant in the heat exchanger and air in the second air duct after heat exchange with the electronic control device are merged in the first air duct, and are discharged from the refrigeration apparatus through a first air duct outlet.
F25D 17/06 - Arrangements for circulating cooling fluidsArrangements for circulating gas, e.g. air, within refrigerated spaces for circulating gas, e.g. by natural convection by forced circulation
F25D 17/08 - Arrangements for circulating cooling fluidsArrangements for circulating gas, e.g. air, within refrigerated spaces for circulating gas, e.g. by natural convection by forced circulation using ducts
25.
TRANSPORT REFRIGERATION UNIT AND A METHOD FOR CONTROLLING A BATTERY PACK
Described herein is a transport refrigeration unit (TRU). The TRU comprises a controller connected to a switching module associated with a battery pack and a TRU battery within the TRU, wherein the battery pack is connected to the TRU via the switching module; wherein the controller comprises a processor with access to a memory storing instructions executable by the processors, which causes the controller to issue an activation electrical power signal from the TRU battery to the switching module to activate the battery pack by establishing an electrical connection between the battery pack and the TRU.
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
B60R 16/033 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems characterised by the use of electrical cells or batteries
F25D 11/00 - Self-contained movable devices associated with refrigerating machinery, e.g. domestic refrigerators
26.
DEVICE, SYSTEM, AND METHOD FOR DETERMINING CHARGE SETTINGS FOR A REFRIGERATION CIRCUIT
Disclosed herein is a system for determining charge settings for a refrigeration circuit of an HVAC unit. The system comprises a controller comprising one or more processors coupled to a memory storing instructions executable by the processors, wherein the controller is configured to receive a set of data pertaining to an operating environment of the HVAC unit and an internal volume of the refrigeration circuit, estimate a saturated suction temperature of a refrigerant in the refrigeration circuit based on the operating environment, and determine a weight of the refrigerant to be added to the refrigeration circuit or a subcooling target temperature for a liquid line associated with the refrigeration circuit based on the estimated saturated suction temperature and the internal volume.
A fluid distributor for a heat exchanger is disclosed. The fluid distributor comprises a header having compartments. A plurality of MCHX tubes associated with a heat exchange section of the heat exchanger are fluidically connected to at least one of the compartments. The fluid distributor further comprises a distribution tube extending longitudinally along the compartments through the walls. The distribution tube comprises a plurality of cavities extending longitudinally along the length of the distribution tube and configured radially around a central axis of the distribution tube. Each cavity comprises ports opening in a compartment. Further, the fluid distributor comprises a supply tube fluidically connected to the distribution tube or to a supply tube compartment of header and configured to supply a fluid into the distribution tube.
A chiller system includes a compressor, a condenser, an expansion device, and an evaporator operably coupled to form a closed fluid loop having a fluid circulating therethrough. A flow of a cooling fluid is arranged in a heat transfer relationship with the fluid at the condenser. An energy transfer device is located downstream from the condenser relative to the flow of the cooling fluid. The energy transfer device is arranged in fluid communication with a third fluid and at least a portion of the heat from the fluid is transferred to the third fluid at the energy transfer device.
F25B 7/00 - Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
F25B 41/20 - Disposition of valves, e.g. of on-off valves or flow control valves
29.
BATTERY PACK, AIR CONDITIONING SYSTEM, AND METHOD FOR THE SAME
Described herein is an air conditioning system comprising a battery box configured to output an output voltage, and a control board circuit configured to receive the output voltage from the battery box for a safe operation, wherein during the safe operation, the control board circuit is configured to actuate at least one of a refrigerant dissipation system and/or a safety shut-off valve to perform a shutdown operation when the output voltage provided by the battery box is greater than a preset threshold.
A sealing system for a magnetic levitating centrifugal compressor, the magnetic levitating centrifugal compressor including a motor cavity and a motor shaft disposed within the motor cavity, an end of the motor shaft extends out from the motor cavity and is mounted with an impeller, the sealing system includes: a seal which is sleeved on the outer side of the motor shaft and is disposed between the impeller and the motor cavity; a first magnet which is fixed at the outer surface of the motor shaft; and a second magnet which is fixed at a side of the seal facing the motor shaft; the first magnet and the second magnet form a radial repulsive force in the radial direction of the motor shaft, so that the seal can be levitated in relative to the motor shaft and move therewith.
A vapor compression system includes a compressor, a condenser, an expansion device, and an evaporator fluidly connected to form a closed fluid loop having a fluid circulating therethrough. A thermal storage device including a phase change material is fluidly connected to and is arranged downstream from an outlet of the compressor relative to a flow of the fluid. A storage expansion device is arranged downstream from the thermal storage device and upstream from the evaporator and a valve is adjustable between a plurality of positions to control the flow of the fluid from the compressor to the thermal storage device.
F24F 5/00 - Air-conditioning systems or apparatus not covered by group or
F24F 11/83 - Control systems characterised by their outputsConstructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
32.
MEDIUM-TO-HIGH VOLTAGE POWER SYSTEM FOR A TRANSPORT REFRIGERATION UNIT
A high-voltage system for a transport refrigeration unit (TRU) includes a high-voltage direct current (HVDC) source, and a first converter coupling the HVDC source to a distribution bus, the distribution bus is coupled to a compressor, at least one condenser, and at least one evaporator. A distribution bus is coupled to a compressor bus coupled to the compressor, a condenser bus coupled to the at least one condenser, and an evaporator bus coupled to the at least one evaporator.
A compressor includes a cylinder block having a first bore and a cylinder head overlapping the cylinder block. The cylinder head has a second bore aligned with the first bore. The second bore is separated into a plurality of distinct regions including a suction region and an economizer region. A plurality of valves includes a suction valve selectively operable to fluidly couple the suction region and the first bore, and an economizer valve selectively operable to fluidly couple the economizer region and the first bore.
F25B 1/10 - Compression machines, plants or systems with non-reversible cycle with multi-stage compression
F04B 25/04 - Multi-stage pumps specially adapted for elastic fluids having cylinders coaxial with, or parallel or inclined to, main shaft axis
F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
F04B 49/22 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by means of valves
34.
DIRECT DRIVE REFRIGERANT SCREW COMPRESSOR WITH REFRIGERANT LUBRICATED ROTORS
Disclosed is a direct-drive refrigerant screw compressor, having: a housing; a compression chamber in the housing; a pair of rotors, each rotor of the pair of rotors being rotationally disposed in the compression chamber and including an outer surface with a screw-geared profile; a fluid being disposed in the compression chamber, the fluid consisting of a working fluid for providing lubrication to each rotor; a first port extending through the housing and configured for directing the fluid toward the compression chamber; and when the compressor is activated, each rotor rotates and the fluid is distributed about each rotor to lubricate each rotor.
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
F25B 1/047 - Compression machines, plants or systems with non-reversible cycle with compressor of rotary type of screw type
35.
AIR HANDLING UNIT HAVING A HEAT SHIELD FLOW DISTRIBUTOR
Described herein is an air handling unit (AHU), comprising a motor-driven fan configured to generate an airflow through a housing, one or more heat elements downstream of the fan to heat the airflow, a control box within the housing containing control electronics to control the heat elements, and a supplementary heat shield between the heat elements and the control box. The supplementary heat shield and control box form a passage for airflow, allowing the control electronics to dissipate thermal losses, and the heat shield reduces heat transfer from the heat elements.
A heat removal device operable to cool a heat-generating device includes a housing having a hollow interior and a base thermally couplable to the heat-generating device and arranged within the hollow interior of the enclosure. The base includes a cooling surface arranged at an incline. A plurality of fins protrude from the cooling surface and at least one first groove is formed in the cooling surface. A top cover is positioned upwardly adjacent to the plurality of fins. The top cover has one or more perforations formed therein.
H01L 23/427 - Cooling by change of state, e.g. use of heat pipes
H01L 23/373 - Cooling facilitated by selection of materials for the device
H01L 23/367 - Cooling facilitated by shape of device
H01L 23/46 - Arrangements for cooling, heating, ventilating or temperature compensation involving the transfer of heat by flowing fluids
H01L 23/467 - Arrangements for cooling, heating, ventilating or temperature compensation involving the transfer of heat by flowing fluids by flowing gases, e.g. air
H01L 23/473 - Arrangements for cooling, heating, ventilating or temperature compensation involving the transfer of heat by flowing fluids by flowing liquids
37.
CONTROL METHOD AND CONTROL DEVICE FOR COMPRESSOR UNIT
The disclosure provides a control method and a control device for a compressor unit, in which oil levels of a first compressor and a second compressor can be adjusted without additionally arranging an oil return pipeline. A first aspect of this application provides a control method for a compressor unit, the compressor unit having a first compressor and a second compressor, and the first compressor and the second compressor being in communication with each other through a gas balance pipe and an oil balance pipe. The compressor unit has a conventional operation step and an oil level adjustment step that are alternately executed, and in the oil level adjustment step, the compressor unit changes a rotation speed of the first compressor and/or the second compressor to adjust oil levels of the first compressor and the second compressor.
An electrical power supply system for an electric transport refrigeration unit. The electrical power supply system is for providing AC power to a refrigeration system and includes: a DC power source for providing a DC voltage via a low voltage line and a high voltage line; an inverter for receiving the DC voltage and converting it to a three phase AC voltage for powering the refrigeration system; and an electromagnetic compatibility, EMC, filter between the inverter and the refrigeration system. The EMC filter uses a common mode current path that connects to a DC link, where the DC link is provided between the high voltage line and the low voltage line of the DC power source. The common mode current path is hence coupled to the DC link in order to provide a floating current connection for common mode current from the EMC filter.
B60R 16/03 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems
B60P 3/20 - Vehicles adapted to transport, to carry or to comprise special loads or objects for transporting refrigerated goods
F25D 11/00 - Self-contained movable devices associated with refrigerating machinery, e.g. domestic refrigerators
H02P 27/06 - 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 using DC to AC converters or inverters
Described herein is a transport refrigeration unit (TRU). The TRU comprises an evaporator, and a variable frequency drive (VFD) operatively coupled to a compressor and/or an evaporator fan associated with the TRU, wherein the VFD is at least partially disposed within an evaporator compartment or fully disposed within a structure separating the evaporator compartment and a condenser compartment associated with the TRU.
Described herein is a method for tampering detection in at least one passive component of a heating, ventilation, air conditioning, and refrigeration (HVAC-R) system, the method comprising attaching one or more devices to a corresponding fastener of the at least one passive component, wherein the one or more devices are configured to transmit an alert signal based on at least one of a position of a sensing element of the one or more devices, vibration detections between the one or more devices and the at least one passive component, and/or unresponsiveness of at least one neighboring device, determining, by a controller, a tamper state of the at least one passive component based on the alert signal, and transmitting, by the controller, an electronic control signal to at least one of the one or more devices and/or the HVAC-R system based on the tamper state.
A Heating Ventilation and Air Conditioning (HVAC) burner assembly is disclosed. The HVAC burner assembly includes one or more burners comprising a downstream side and an inlet disposed on an upstream side. An inlet manifold, in fluid communication with the inlet of the one or more burner, is adapted to supply a primary air-fuel mixture to the inlet of the one or more burner. At least one mechanical blower is in fluid communication with the inlet manifold. The at least one mechanical blower includes an impeller adapted to receive and mix a fuel with primary air for generating the primary air-fuel mixture.
F23D 14/04 - Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
F23C 1/00 - Combustion apparatus specially adapted for combustion of two or more kinds of fuel simultaneously or alternately, at least one kind of fuel being either a fluid fuel or a solid fuel suspended in air
F23D 14/60 - Devices for simultaneous control of gas and combustion air
A transportation refrigeration unit (TRU) and power system. The TRU and power system including a compressor configured to compress a refrigerant, an evaporator heat exchanger operatively coupled to the compressor, and an evaporator fan configured to provide return airflow and flow the return airflow over the evaporator heat exchanger. The system also includes a return air temperature (RAT) sensor disposed in the return airflow and configured measure the temperature of the return airflow, a TRU controller operably connected to the RAT sensor and configured to execute a process to determine an AC power requirement for the TRU based on at least the RAT; a generator power converter configured to receive a generator three phase AC power and provide DC power to an energy storage system, a power management system, the power management system configured to direct power the TRU based on the AC power requirement.
An energy control system for use with an electric vehicle having an energy storage device that powers both the propulsion system of the vehicle and a transport refrigeration unit that is configured to condition a cargo space of the vehicle; the energy control system is configured to receive a user selection relating to energy to be allocated to the propulsion system and/or the transport refrigeration unit; and the energy control system is configured to provide control for an energy allocation of the available energy in the energy storage device between the propulsion system and the transport refrigeration unit based on the user selection and the available energy in the energy storage device.
B60H 1/00 - Heating, cooling or ventilating devices
B60L 58/12 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
This application provides an ejector refrigeration system including: a compressor having a suction port and a discharge port; a first heat exchanger connected to the discharge port of the compressor to receive a fluid working medium flowing out from the discharge port of the compressor; and an ejector including a primary flow inlet connected to the first heat exchanger to receive a fluid working medium from the first heat exchanger, a secondary flow inlet, and an ejector outlet connected to the suction port of the compressor to return a fluid working medium entering the ejector to the suction port of the compressor; and a phase adjustment mechanism configured to adjust a phase state of the fluid working medium entering the primary flow inlet of the ejector or adjust a gas-liquid ratio of the fluid working medium at the primary flow inlet, thereby enabling the ejector to generate sufficient pressure lift.
This application provides a refrigeration heat pump unit, including a refrigerant circuit formed by a centrifugal compressor, a condenser, a throttling device, and an evaporator. The centrifugal compressor includes a housing, a first motor, a second motor, a first compression chamber, a second compression chamber, a first impeller, a second impeller, and a controller. The controller is configured to turn on the first motor and turn off the second motor in response to a first working condition, turn off the first motor and turn on the second motor in response to a second working condition, and turn on the first motor and the second motor in response to a third working condition.
A refrigeration system comprises a compressor, a condenser, a reservoir, a throttling device, an evaporator, and a cooling device for cooling high-temperature components connected in sequence through pipes. The cooling device has a heat exchange container and a flow pipe, where the heat exchange container maintains fluid communication with the reservoir through the flow pipe, and the heat exchange container is used to absorb heat of the high-temperature components. The heat exchange container receives liquid refrigerant from the reservoir through the flow pipe, the liquid refrigerant in the heat exchange container generates vapor after heat exchange with heat absorbed from the high-temperature components, and the vapor enters the reservoir through the flow pipe, thus forming a circulation loop. Also described is a refrigerator van configured with a refrigeration system.
A hybrid fuel cell system is disclosed. The hybrid fuel cell comprises a fuel cell adapted to supply power to a load. The hybrid fuel cell further comprises an Electrical Air Compressor (EAC) unit operatively coupled with the fuel cell. Also, the hybrid fuel cell comprises an auxiliary power source connected to the EAC unit via a Direct Current to Alternative Current (DC-AC) converter. Furthermore, the hybrid fuel cell comprises a converter circuit configured to perform at least one of enable the auxiliary power source to supplement the fuel cell to provide collective power supply to a load during the initialization phase of the fuel cell, enable the fuel cell to provide either the input power supply or a supplement power supply to the EAC unit during an operational phase of the fuel cell, or enable the fuel cell to charge the auxiliary power source.
H01M 8/04225 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells during start-up
H01M 8/04111 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants using a compressor turbine assembly
H01M 8/04302 - Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during start-up
An assembly includes a heat pump and a cascade module fluidly couplable to the heat pump. The cascade module is fluidly connected to the heat pump during a first mode of operation to increase a capacity of the heat pump and the cascade module is not fluidly connected to the heat pump during a second mode of operation.
F24F 3/00 - Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatmentApparatus specially designed for such systems
F25B 7/00 - Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
50.
COMMUNICATION CIRCUIT, COMMUNICATION SYSTEM, AND AIR CONDITIONING SYSTEM
The present invention relates to a communication circuit, a communication system, and an air conditioning system provided with the communication circuit and the communication system. The communication circuit includes a control chip, a first data bus transceiver, a second data bus transceiver, and a switch circuit. The first data bus transceiver has one end connected to the control chip and the other end connected to the first external device; the second data bus transceiver has one end connected to the control chip and the other end connected to the second external device; and the switch circuit is connected to the first data bus transceiver and the second data bus transceiver. The communication circuit realizes automatic switching of two independent RS485 communication buses according to a requirement of communication data, thereby realizing device interconnection and real-time data exchange on the two independent RS485 communication buses. Accordingly, the communication efficiency is improved.
This application provides an HVAC system, a control method for an HVAC system, and a computer-readable storage medium. The HVAC system includes a chiller/heat pump unit, an air handling unit and a controller. The chiller/heat pump unit provides working fluid. The air handling unit is provided with a heat exchanger, air is blown indoors after exchanging heat with the working fluid flowing through the heat exchanger, and the air handling unit adjusts the supply air temperature based on a temperature setpoint. The controller is configured to acquire an expected emission level of an energy source powering the HVAC system and adjust the temperature setpoint based on the expected emission level.
This application provides a refrigerating system including a first throttling device control mode setting module and a first throttling device control module. The first throttling device control mode setting module receives at least one parameter associated with operation of a compressor, determines whether the at least one parameter indicates that the compressor is under a preset surge protection condition, and selects between a normal control mode and a surge protection control mode based on the determination. The first throttling device control module controls the first throttling device in the normal control mode in response to the first throttling device control mode setting module selecting the normal control mode, and controls the first throttling device in the surge protection control mode in response to the first throttling device control mode setting module selecting the surge protection control mode.
This disclosure provides a heat exchanger unit and an air conditioning system. The heat exchanger unit includes: a first heat exchanger, included in a first housing provided with a first refrigerant inlet and a first refrigerant outlet, and a first heat exchanging tube bundle disposed in the first housing; a second heat exchanger, included in a second housing provided with a second refrigerant inlet and a second refrigerant outlet, and a third heat exchanging tube bundle disposed in the second housing and having an inlet in communication with an outlet of the first heat exchanging tube bundle; a third heat exchanger, and a first heat exchanging flow passage; and a fourth heat exchanger, and a second heat exchanging flow passage and having an inlet in communication with an outlet of the first heat exchanging flow passage.
F28D 1/04 - 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 is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with tubular conduits
F28D 1/053 - 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 is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
54.
CHILLER UNIT ENERGY CONSUMPTION CALCULATING METHOD, CALCULATING DEVICE, AND CHILLER UNIT
This application provides a device, system and method for predicting and calculating energy consumption of a chiller unit. The system and method includes: a chiller unit load prediction step of predicting and outputting a total load of the chiller unit based on a preset cooling load prediction model; a chiller load distribution step of distributing the total load of the chiller unit to generate a first chiller load and a second chiller load, according to a chiller load distribution logic; a chiller energy efficiency value acquisition step of correspondingly acquiring a first chiller energy efficiency value and a second chiller energy efficiency value according to a chiller load-energy efficiency relationship; and a chiller power calculation step of calculating a first chiller input power and a second chiller input power according to the first chiller energy efficiency value and the second chiller energy efficiency value.
The present application provides a water source heat pump system including a first unit and a second unit. The first unit includes a first compressor, a first condenser and a first evaporator. The second unit includes a second compressor, a second condenser and a second evaporator. The first compressor, the first condenser and the first evaporator are in communication with each other to form a first refrigerant circuit, and the second compressor, the second condenser and the second evaporator are in communication with each other to form a second refrigerant circuit. A fluid pipeline in the first condenser and a fluid pipeline in the second condenser are connected in series to allow a heating fluid to pass through the second condenser and the first condenser in sequence. A fluid pipeline in the first evaporator and a fluid pipeline in the second evaporator are connected in series to allow a heat source fluid to pass through the first evaporator and the second evaporator in sequence. The first compressor and the second compressor are both centrifugal direct-drive compressors, and each of the centrifugal direct-drive compressors includes a first compression chamber, a second compression chamber, a driving motor and at least three impellers.
Described herein is a motor for a compressor. The motor comprises a rotor configured over a shaft, a stator arranged around the rotor within a housing associated with the compressor, and a cooling system. The cooling system comprises a first fluidic passage extending from a first end towards a second end, along a length, of the shaft, and a plurality of orifices configured at positions on a circumference of the shaft, where the plurality of orifices are fluidically connected to the first fluidic passage via a plurality of second fluidic passages, wherein the motor is configured to enable a refrigerant associated with the compressor to flow within the first fluidic passage via the first end of the shaft and further flow out of the shaft towards the stator and/or the rotor through the plurality of orifices via the corresponding second fluidic passages.
H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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
F25B 31/02 - Compressor arrangements of motor-compressor units
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
Described herein is a fluid distributor assembly for a heat exchanger. The assembly comprises a first casing, a second casing configured to be removably attached to the first casing such that a header is formed having an enclosed space therewithin, and a plurality of fluid distributors configured to be removably accommodated on one or more of the first casing and the second casing, wherein at least two fluid distributors among the plurality of fluid distributors have different distribution configurations, wherein the first casing and the second casing are attached to secure the accommodated distributors within the formed header.
Disclosed herein is a power supply system for a transport refrigeration unit (TRU). The system comprises a battery, and a generator connected to the battery. The generator is operatively coupled to an axle of a trailer to generate electrical power upon rotation of the axle. The system further comprises a controller configured to activate the generator to generate and supply the electrical power to the battery and/or the TRU during the a trip after the TRU depletes energy stored in the battery to or below a threshold state of charge (SoC) level.
B60R 16/033 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems characterised by the use of electrical cells or batteries
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H01M 10/46 - Accumulators structurally combined with charging apparatus
H02J 7/16 - Regulation of the charging current or voltage by variation of field
Described herein is a motor for a compressor. The motor comprises a rotor configured over a shaft, a stator arranged around the rotor within a cover associated with the motor, and at least one fluid injection device, wherein the at least one fluid injection device has a shape and comprises an inlet port, and one or more outlet ports configured at positions on the corresponding fluid injection device, the one or more outlet ports being fluidically connected to the inlet port via a plurality of fluidic passages extending within the corresponding fluid injection device, wherein the inlet of each of the at least one fluid injection device is fluidically connected to a fluid injection passage extending through the cover.
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
60.
BATTERY-BASED ACTIVE MAGNETIC BEARING SYSTEM AND A POWER SUPPLY CIRCUIT THEREOF
A power supply circuit for a magnetic bearing system comprises a power convertor configured to be electrically connected to an alternating current (AC) power source, an inverter configured to be electrically connected between the power convertor and a motor associated with the HVAC system, and a battery, an input side of the battery electrically connected to a direct current (DC) bus configured between the power convertor and the inverter, and an output side of the battery electrically connected to one or more electromagnetic bearings and a magnetic bearing control drive associated with the motor or the magnetic bearing system, wherein the battery is configured to receive and store a portion of the DC electrical power. The battery is configured to supply the stored electrical power to the electromagnetic bearings and the magnetic bearing control drive in an event of failure of supply of electrical power to the motor.
H02J 9/06 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
H02K 7/09 - Structural association with bearings with magnetic bearings
H02M 5/458 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
Described herein is an impeller for a flow device. The impeller comprises a hub, and a plurality of blades extending radially outwards from the hub, wherein each of the blades is at least partially attached to an outer surface of the hub such that at least a portion of a tip end, opposite to the hub, of the corresponding blades remains unattached to the outer surface of the hub, wherein the unattached portion of the blades is free to deflect based on a rotational speed of the impeller and correspondingly adjust a backsweep angle of the corresponding blades within a predefined range.
Described herein is a transport refrigeration unit (TRU). The TRU comprises a refrigeration module configured to be installed on a container, and at least one power module configured to be detachably disposed at one or more positions on the container or removably attached to an axle of the container, wherein the at least one power module is configured to be reversibly connected to the refrigeration module via electrical harnesses, and wherein the at least one power module comprising at least one of: an electric power module, a fuel-based power module, or an axle generator operably connected to the axle of the container.
F25D 11/00 - Self-contained movable devices associated with refrigerating machinery, e.g. domestic refrigerators
B60P 3/20 - Vehicles adapted to transport, to carry or to comprise special loads or objects for transporting refrigerated goods
B60R 16/02 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric
B60R 16/03 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems
B60R 16/033 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems characterised by the use of electrical cells or batteries
G07C 5/08 - Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle, or waiting time
63.
POWER SUPPLY MANAGEMENT IN A TRANSPORT REFRIGERATION UNIT
Disclosed herein is a power supply system for a transport refrigeration unit (TRU). The power supply system comprises a battery having a battery management system (BMS). The BMS configured to enable a supply of electrical power to the battery or a supply of electrical power from the battery to the TRU, a generator electrically connected to the battery and the TRU, and a controller connected to the TRU, the generator, and the BMS, wherein the controller comprises a processor with access to a memory storing instructions executable by the processor, which causes the controller to monitor electrical power consumption of the TRU; monitor electrical power generated by the generator, and enable the supply of electrical power from the generator to the battery and/or powering the TRU based on the electrical power consumption of the TRU and the electrical power generated by the generator.
F25D 29/00 - Arrangement or mounting of control or safety devices
B60P 3/20 - Vehicles adapted to transport, to carry or to comprise special loads or objects for transporting refrigerated goods
B60R 16/033 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems characterised by the use of electrical cells or batteries
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 7/14 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
64.
LAMINATED HEADER FOR A MICROCHANNEL HEAT EXCHANGER
A laminated header for a microchannel heat exchanger comprises a distribution plate comprising a first cut-out section of a first shape extending along a longitudinal axis of the distribution plate, wherein a width of the first cut-out section at least partially decreases along the longitudinal axis a hole plate comprising a plurality of bore-holes formed therein and separated by a distance therebetween, a section plate comprising a plurality of second cut-out sections of a second shape different from the first shape, and wherein the hole plate is parallelly stacked between the distribution plate and the section plate. The first cut-out section fluidically connects with each of the bore-holes and the second cut-out sections fluidically connects the bore-holes to a plurality of microchannel tubes of the heat exchanger.
The disclosure relates to the technical field of refrigeration, in particular to a heat exchange system and a heat exchange method. The heat exchange system can increase the suction/discharge superheat of a refrigerant and decrease the temperature of lubricating oil, thus improving the viscosity and lubrication performance of the lubricating oil; and the heat exchange system has a low cost, a simple structure and a small size and is suitable for different types of refrigeration systems. The heat exchange system comprises a compressor, an evaporator, a heat exchanger, an inlet line, a first regulating device and an outlet line. A heat exchange line is arranged in the heat exchanger, the inlet line is connected to the evaporator and the heat exchange line, the first regulating device is arranged on the inlet line and the outlet line is connected to a suction inlet of the compressor and the heat exchange line.
Described herein is a fluid distributor for a header associated with a heat exchanger. The distributor comprises a distributor tube comprising a first tube segment, and a second tube segment extending at a predefined angle from an end of the first tube segment, wherein the distributor tube comprises a hole at a predefined position on a predefined side, facing towards the first tube segment on an inner side of a bend, of the second tube segment, wherein the distributor tube is configured with the header such that the first tube segment remains outside of the header and the second tube segment extends longitudinally within the header via a first end of the header, with the hole located at the first end of the header.
Described herein is an air handling unit (AHU). The AHU comprises a heat exchanger, and a thermal stratification mixer. The mixer comprises a central hub, and a plurality of blades extending radially from the hub with a gap between each of the blades, wherein the blades comprises a set of first blades and a set of second blades configured in an alternating arrangement, wherein the gap between each of the blades allows a first portion of an air stream flowing through the heat exchanger to flow substantially straight, and a trailing surface of the first blades causes a second portion of the air stream to turn by a substantially 90 degrees angle and flow over a leading surface of the adjacent second blade, to mix the first and second portions of the air stream and swirl the mixed air stream downstream of the mixer.
B01F 25/60 - Pump mixers, i.e. mixing within a pump
F04D 25/12 - Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures
68.
SYSTEM AND METHOD FOR LUBRICANT MANAGEMENT IN A HEATING, VENTILATION, AIR CONDITIONING, AND REFRIGERATION (HVACR) SYSTEM
A lubricant management system for a HVACR system, is disclosed. The lubricant management system includes a compressor, a first and a second set of orifices, and a flow regulating valve. The compressor includes lubricant inlet ports and lubricant outlet ports. The first set of orifices are adapted to receive lubricant via a first passageway and a second passageway via a flow regulating valve disposed in the second passageway, such that the first passageway and the second passageway are fluidly connected. The second set of orifices are adapted to receive lubricant supplied by the first passageway and the second passageway. Moreover, the second set of orifices are adapted to supply the received lubricant to each of the lubricant inlet ports such that the flow regulating valve is open to supply lubricant based on the pressure difference between a first and a second pressure region of the compressor.
F25B 43/02 - Arrangements for separating or purifying gases or liquidsArrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from the refrigerant
69.
AIR HANDLING UNIT HAVING A HEAT SHIELD FLOW DISTRIBUTOR
An air handling unit is disclosed, including a motor-driven fan with an annular outlet configured to move air through a housing of the AHU, a primary heat exchanger configured to cool or heat the air passing through the AHU, one or more heat elements placed downstream of the motor-driven fan, the one or more heat elements being configured to transfer heat to the airflow, and a heat shield placed between the motor-driven fan and the one or more heat elements, and configured to reduce heat transfer from the one or more heat elements upstream of the heat shield, and redistribute the airflow upstream and downstream of the heat shield, wherein the heat shield includes a distribution of openings configured to allow air to flow through the heat shield.
Described herein is a supplemental electric heater assembly for a heat pump. The assembly comprises a plurality of electric heaters, each having a different heating capacity value, wherein the heating capacity values of the plurality of electric heaters are in a geometric progression.
F24F 1/0375 - Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing characterised by heating arrangements with additional radiant heat-discharging elements, e.g. electric heaters
A chiller comprises compressors, a condenser, a first throttling element, and an evaporator, wherein the compressors comprise a first EVI compressor and a second EVI compressor, which are connected in parallel. The chiller further comprises a second throttling element, a third throttling element, an economizer, a first manifold and a second manifold, wherein the economizer comprises a first heat-exchange passage, a second heat-exchange passage and a third heat-exchange passage, the second heat-exchange passage, the first heat-exchange passage is connected between the condenser and the first throttling valve, the first manifold is sequentially connected to the second throttling element, the second heat-exchange passage and the first supplement port, and the second manifold is sequentially connected to the third throttling element, the third heat-exchange passage and the second supplement port.
The present disclosure relates to the technical field of refrigeration, and in particular to a refrigeration system. The refrigeration system includes a compressor, an oil separator, and an evaporator, and the refrigeration system further includes a degasser, an input pipeline, and a first output pipeline, in which the degasser is in communication with the mixture outlet of the oil separator through the input pipeline, and is in communication with the inlet of the compressor through the first output pipeline. The refrigeration system can reduce a viscosity of a lubricating oil circulating in the system and improve a lubricating effect and a service life of equipment such as a compressor while achieving efficient oil-gas separation.
A method of providing selective air conditioning in an air conditioning system including a plurality of zones, each zone having a respective air conditioning device associated therewith. The method incudes determining there is a need for selective air conditioning; upon determining there is the need for selective air conditioning, sending a notice to a user device; receiving, at the user device, a selection of zones to be enabled of the plurality of zones and/or a selection of zones to be disabled of the plurality of zones; sending the selection of zones to be enabled of the plurality of zones and/or the selection of zones to be disabled of the plurality of zones to a controller; and the controller sending a command to each of the air conditioning devices, the command configured to enable or to disable the air conditioning device in each respective zone.
F24F 11/46 - Improving electric energy efficiency or saving
F24F 11/52 - Indication arrangements, e.g. displays
F24F 11/81 - Control systems characterised by their outputsConstructional details thereof for controlling the temperature of the supplied air by controlling the air supply to heat-exchangers or bypass channels
A system includes an air conditioning system including a first unit and a second unit coupled to the first unit by a fluid path; an energy storage device connected to at least one of the first unit and the second unit, the energy storage device configured to store electrical energy; and a thermal storage device connected to one of the first unit and the second unit, the thermal storage device configured to store thermal energy.
F24F 11/49 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
An air conditioning system includes an outdoor load connected to an AC bus; an indoor load connected to the AC bus; an energy storage device connected to the AC bus; an outdoor load power measurement unit configured to determine a power demand of the outdoor load; an indoor load power measurement unit configured to determine a power demand of the indoor load; and an energy storage device management unit configured to control power supplied by the energy storage device such that power supplied by the energy storage device offsets a combined power demand of the outdoor load and power demand of the indoor load.
A power converter configured to supply power from one of an AC power grid or an energy storage device to an air conditioning system, the power converter including a positive DC line and a negative DC line; a first leg extending between the positive DC line and the negative DC line, the first leg including a first switch and a second switch; a second leg extending between the positive DC line and the negative DC line, the second leg including a third switch and a fourth switch; a third leg extending between the positive DC line and the negative DC line, the third leg including a fifth switch and a sixth switch; wherein the first leg, second and third leg are part of a three-phase inverter package; the AC power grid connected to a junction between the third switch and the fourth switch; and a controller.
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
H02M 1/10 - Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from AC or DC
H02M 7/797 - Conversion of AC power input into DC power outputConversion of DC power input into AC power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
77.
POWER ELECTROINCS COMMUNICATION IN SELF-POWERED AIR CONDITOINING SYSTEM
A method of providing communication between a utility and power electronics of an air conditioning system, the method including receiving, at a controller of the air conditioning system, a message from the utility; wherein the message includes an event field including an event and a start time field including a start time; determining whether a current time equals the start time; upon determining that the current time equals the start time, transmitting the message to the power electronics.
H02J 3/32 - Arrangements for balancing the load in a network by storage of energy using batteries with converting means
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
78.
MANAGEMENT OF SELF-POWERED AIR CONDITIONING SYSTEMS
A system for energy management includes a utility server providing a load shape; an aggregator in communication with the utility server; a plurality of buildings; a plurality of assets associated with the plurality of buildings, at least one of the assets being an energy storage device; wherein the aggregator is configured to at least one of (i) supply energy from the energy storage device to satisfy the load shape or (ii) change a setting of an asset to satisfy the load shape.
Described herein is a system for real-time inbound trip automation and event monitoring for shipments. One or more products are associated with one or more shipments, one or more monitoring devices are assigned to the one or more shipments and affixed to the one or more products. Each of the monitoring devices is configured to monitor attributes and a location of the one or more products. The system is configured to receive a set of data packets pertaining to a trip automation rule defined for an inbound trip for the one or more shipments, detect a location of the one or more monitoring devices, and automatically create the trip for the one or more shipments associated with the activated monitoring devices upon a positive matching of the detected location with the origin and mark the detected location as a marked origin for the created trip.
A connector assembly for a scroll compressor comprises an adaptor having a first end configured to be attached to an outer surface of the compressor at one or more ports of the compressor such that a longitudinally extending bore-hole of the adaptor remains in line and fluidically connected to the corresponding port, and a first tube extending coaxially through the bore-hole of the adaptor via a second end of the adaptor such that a first end of the first tube extends at least partially within an inner chamber of the compressor via the corresponding port and a second end of the first tube extends at least partially outside of the second end of the adaptor, wherein a connecting end of a conduit to be fluidically connected to the corresponding port is configured to be coaxially connected to the second end of the first tube.
F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
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
F16L 19/025 - Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges
Described herein is a fluid distributor for a heat exchanger. The fluid distributor comprises a first tube having an open first end and a closed second end, wherein a plurality of first channels extends in a helical configuration along a length in an interior of the first tube and one or more outlet ports are configured along a surface of the first tube, wherein the fluid distributor is configured with the heat exchanger such that the one or more outlet ports fluidically connect the plurality of first channels to a plurality of tubes associated with a heat exchange section of the heat exchanger or an interior volume of an inlet header associated with the heat exchanger.
F28D 1/053 - 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 is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
82.
INLINE REFRIGERANT MIXER FOR THERMOSTATIC EXPANSION VALVE BULB ASSOCIATED WITH REFRIGERATION CIRCUITS AND HEAT EXCHANGERS
Described herein is a refrigeration circuit. The refrigeration circuit comprises an evaporator coil comprising an inlet fluidically connected to an outlet of a condenser coil via a thermostatic expansion valve (TXV) and an outlet in thermal communication with a sensing bulb associated with the TXV, wherein the sensing bulb is configured to monitor temperature of a fluid exiting the outlet of the evaporator coil and correspondingly actuate the TXV to control pressure of the fluid supplied by the condenser coil into the evaporator coil; and a fluid mixer configured downstream of the outlet of the evaporator coil, wherein the fluid mixer is configured to uniformly mix the fluid exiting the evaporator coil, and wherein the sensing bulb is configured to sense temperature of the uniformly mixed fluid.
A power system for optimizing power supply to an Electrified Transportation Refrigeration Unit (E-TRU) of an electric vehicle includes an energy storage unit for supplying power to the E-TRU, an axle generator adapted to supply power to the energy storage unit and the E-TRU, and a charge management system. The charge management system monitors a State of Charge (SoC) of the energy storage unit. The charge management system accesses route information associated with the electric vehicle. Next, the charge management system predicts a power requirement of the electric vehicle and the E-TRU based on the accessed route information and controls the axle generator in an engaged mode or a disengaged mode based on the monitored SoC and the predicted power requirement of the electric vehicle and the E-TRU.
B60L 1/00 - Supplying electric power to auxiliary equipment of electrically-propelled vehicles
B60H 1/00 - Heating, cooling or ventilating devices
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 7/14 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
Described herein is a modular de-superheater and water heater system. The system comprises a refrigerant-to-water (RW) heat exchanger comprising a first coil, and a second coil in thermal communication with each other. A first end of the first coil is connected to a first port of a heat pump and a second end of the first coil is connected to an inlet of an indoor fan coil unit. A first end of the second coil is connected to an outlet of a DHW tank and a second end of the second coil is connected to an inlet of the DHW tank. The system further comprises a solenoid valve connected between an outlet of the fan coil unit and a second port of the heat pump, and an electronic expansion valve connected between the second port of the heat pump and the second end of the first coil.
Described herein is an ejector and a refrigeration system. The ejector includes: a housing; a nozzle; a first retainer fixed in the nozzle; a needle valve that is provided in the nozzle and includes a first end, a second end, and a threaded section. The threaded section is engaged with the first retainer, and the first end being movable to adjust an opening degree of the nozzle outlet; and a first magnetic rotation mechanism including a first outer ring and a first inner ring. An inner surface of the first outer ring and an outer surface of the first inner ring is spaced from and opposed to each other and correspondingly provided with a plurality of groups of magnets having opposite magnetic properties respectively.
An air diffuser comprises a thermal barrier and diffuser cover defining a shape of the diffuser, the diffuser comprises an inlet, an outlet, and a flow path extending in an upward direction from the inlet and turning substantially by a 90° angle into a substantially horizontal direction towards the outlet. An internal flow area of the flow path increases from the inlet towards the outlet. One or more turning vanes are configured at the outlet such that at least a curved portion of the turning vanes extends at least partially into the flow path. One or more turning vanes have a varying shape, transitioning from the curved portion at center to a flat profile portion at lateral ends of the corresponding tuning vanes; and one or more guide vanes configured at the outlet of the diffuser cover.
Described herein is a system for capturing carbon dioxide (CO2) from an air stream. The system comprises a CO2 capturing media configured to allow the air stream to flow therethrough and correspondingly capture CO2 gas present in the air stream, and a liquefication unit configured to receive the captured CO2 gas from the CO2 capturing media and correspondingly compress and/or liquefy the received CO2 gas into liquid CO2, wherein heat generated during the compression and/or liquefication of the CO2 is supplied to the CO2 capturing media to regenerate the CO2 capturing media.
B01D 53/04 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Thermostats; thermostats and climate control devices consisting of digital thermostats for air conditioning, heating, ventilation, drying and air quality control; electronic controls for air conditioning, heating ventilation and refrigeration systems and related technology devices; electrical controllers for environmental control systems; environmental monitoring system for environmental control systems comprised of meters and sensors that measure pressure, humidity, temperature and includes alarm and reporting functions; electrical controllers for environmental building monitor and control systems and for use with systems that monitor and control transportable and stationary refrigeration systems; electrical controllers for environmental building automation and energy management systems; computer software for receiving, processing, transmitting and displaying data on environmental control interactive displays used with environmental control systems and related air conditioning, refrigeration and heating ventilation systems and devices; user interfaces for electrotechnical and electronic environmental control systems and related air conditioning, refrigeration and heating ventilation systems and devices; interactive electronic display interfaces all for environmental control systems and related air conditioning, refrigeration and heating ventilation systems and devices; computer software for receiving, processing, transmitting and displaying data on environmental control interactive displays used with environmental building automation and energy management systems; user interfaces for electrotechnical and electronic environmental building automation and energy management systems; interactive electronic display interfaces all for environmental building automation and energy management systems; structural parts for the aforementioned goods; Downloadable computer software for collecting, analyzing, and reporting data from residential and commercial building data sources; downloadable mobile application software for enabling touchless building entry and elevator access and reporting building wellness data of livable spaces; Apparatus, instruments, and cables for electricity, electronic controllers used to reduce power consumption, apparatus, and instruments for accumulating and storing electricity, electric accumulators, anode batteries, high tension batteries, batteries, electric batteries for vehicles, batteries for lighting, battery jars, battery boxes, battery chargers, chargers for electric batteries, galvanic cells, galvanic batteries, grids for batteries, plates for batteries, and solar batteries; Circuit breakers, control panels, commutators, comparators, electric converters, current rectifiers, inverters, lightning conductors, lightning arresters, electricity limiters, relays, step-up transformers, switch boxes, time switches, electric voltage transformers, and voltage surge protectors; Temperature controlling apparatus, in particular temperature indicators and thermostats; electronic apparatus for the remote control of signals; electrical couplings; apparatus for regulating and controlling electricity; data processing equipment; remote control apparatus; solar panels for the production of electricity; Electrical/electronic regulation and control equipment for heating and solar systems; Remote controls for heating and solar systems; Computer software, in particular software for the planning and calculation of heating systems and software for the operation of boilers and solar systems; Solar systems for power generation; Computer software for use to control remotely air-conditioning apparatus for buildings; network computers installed with computer software for use to control remotely air-conditioning apparatus for buildings and their parts and fittings. Heating apparatus; heating boilers; hot water boilers; burners; Air treatment ionization equipment; air purifying apparatus and machines, humidifying, dehumidifying, refrigerating, ventilating and air conditioning units, namely, furnaces and heat pumps; transport refrigeration units such as for trucks, trailers and shipping containers; residential and commercial ventilating fans; residential and commercial air conditioning units; structural component parts thereof; cooking apparatus and installations; water distribution installations; drying apparatus; air dryers; refrigerators; refrigerating appliances and installations; humidifiers; electric heating apparatus; heating installations; burners for liquid, gaseous or solid fuels and their metal, electric and pneumatic parts and accessories; kettles; heat exchangers (other than parts of machines); solar thermal collectors (heating); solar panels, panels for capturing solar energy; Boilers for oil, gas and solid fuels, in particular oil low-temperature boilers, gas condensing boilers, oil and gas wall-mounted boilers, gas low-temperature boilers, cast iron boilers; Heating circuit pumps; Oil and gas burners for boilers, especially oil and forced-air gas burners; Solar systems for heat generation, in particular solar collectors; Storage water heater; Electric water heater; Instantaneous water heaters; Heat pumps; Heat exchangers, other than parts of machines; Ventilation units (for air conditioning); Air cooling apparatus; Steam generators; Boilers, other than parts of non-electric prime movers and engines, namely, electric boilers, heating boilers and boilers for heating installations; air conditioners for industrial purposes; freezing apparatus for industrial purposes; air conditioners; air conditioners for household purposes; air conditioning apparatus. Maintenance services and subscription maintenance services for hvac equipment, refrigeration equipment, temperature-controlled cargo containers, temperature-controlled cargo vehicles, temperature-controlled cargo storage units and facilities; HVAC contractor services; Installation, maintenance and repair services for heating, cooling, ventilating, air conditioning and refrigeration equipment; Installation, repair, maintenance and servicing of heat pumps, energy recovery systems, condensing units; Installation of burners and boilers; installation of apparatus for heating; installation of apparatus for air-conditioning; installation of steam generating apparatus; installation of cooking apparatus; installation of refrigerating apparatus; installation of drying installations; installation of ventilating apparatus for water pipes; installation of sanitary installations; installation of solar panels and collectors; maintenance of burners and boilers; maintenance of heating apparatus; installation of air-conditioning apparatus; maintenance of steam generating apparatus; maintenance of cooking apparatus; maintenance of refrigerating apparatus; maintenance of drying installations; maintenance of ventilating apparatus for water pipes; maintenance of sanitary installations; maintenance of solar panels and collectors; reparation services for others of burners and boilers; reparation services for others of heating apparatus; reparation services for others of air-conditioning apparatus; reparation services for others of steam generating apparatus; reparation services for others of cooking apparatus; reparation services for others of refrigerating apparatus; reparation services for others of drying installations; reparation services for others of ventilating apparatus for water pipes; reparation services for others of sanitary installations; reparation services for others of solar panels and collectors. IT services; hosting services, software as a service, and rental of software; platform as a Service [PaaS]; online platform as a Service [PaaS]; providing temporary use of non-downloadable computer software for collecting, analyzing and reporting data from residential and commercial building data sources, namely, Building Management Systems and Building Automation System (BMS/BAS) which are computer-based control systems installed in buildings that control and monitor a building's mechanical and electrical equipment and third-party sensors for mechanical and electric equipment in a building, and used for controlling and adjusting the mechanical and electrical equipment in a building for the purpose of optimizing performance and meeting certain industry standards for efficiency and wellness of persons and building spaces; providing temporary use of non-downloadable mobile application software for enabling touchless building entry and elevator access and reporting building wellness data of livable spaces; maintenance of computer software, namely, maintenance of mobile application software; remote monitoring of HVAC equipment, refrigeration equipment, temperature-controlled cargo containers, temperature-controlled cargo vehicles, temperature-controlled cargo storage units and facilities, and remote access management equipment to ensure proper functioning; technical support services in the nature of diagnosing problems with HVAC equipment, refrigeration equipment; providing a website featuring technology enabling users to remotely view, monitor, program, operate and control HVAC equipment, refrigeration equipment, temperature-controlled cargo containers, temperature-controlled cargo vehicles, temperature-controlled cargo storage units and facilities; computer services namely remote management of HVAC equipment, refrigeration equipment, temperature-controlled cargo containers, temperature-controlled cargo vehicles, temperature-controlled cargo storage units and facilities.
89.
SYSTEM AND METHOD FOR MANAGING POWER SUPPLIED TO ATRANSPORTATION REFRIGERATION UNIT (TRU)
A system for managing power supplied to a Transportation Refrigeration Unit (TRU), includes a power supply system, at least one electric power converter, and control circuitry coupled to the power supply system and the TRU. The power supply system includes a battery unit and a fuel cell connected in parallel. The control circuitry is configured to receive information associated with an operational characteristic of a subcomponent of the TRU and predict an increase or a decrease in a load associated with the subcomponent of the TRU based on the received information. Consequently, the control circuitry broadcasts a control signal to the fuel cell at a predefined time duration before the predicted increase or decrease in the load such that the control signal regulates the power supply from the fuel cell to the subcomponent.
B60L 1/00 - Supplying electric power to auxiliary equipment of electrically-propelled vehicles
B60H 1/00 - Heating, cooling or ventilating devices
B60L 50/75 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using propulsion power supplied by both fuel cells and batteries
B60L 58/40 - Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for controlling a combination of batteries and fuel cells
B60R 16/023 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for transmission of signals between vehicle parts or subsystems
An air conditioning system includes a vapor compression cycle having a plurality of components including a compressor and at least one heat exchanger. A heat transfer fluid is configured to circulate within the vapor compression cycle. An energy storage device is selectively operable to supply power to one of the plurality of components of the vapor compression cycle. A cooling system is associated with the energy storage device. The cooling system is a geothermal cooling system and a ground near the energy storage device is a heat sink configured to absorb heat from the energy storage device.
F24T 10/10 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
42 - Scientific, technological and industrial services, research and design
Goods & Services
Providing online non-downloadable software for data center thermal management; Platform as a service (PAAS) featuring computer software platforms for data center thermal management; Providing online non-downloadable software for Data Center Infrastructure Management; Platform as a service (PAAS) featuring computer software platforms for Data Center Infrastructure Management; Providing online non-downloadable software for advisory services relating to the installation, maintenance, repair and management of data centers; Platform as a service (PAAS) featuring computer software platforms for advisory services relating to the installation, maintenance, repair and management of data centers; Providing online non-downloadable software for advisory services relating to the installation, maintenance, repair and management of heating and cooling apparatus; Platform as a service (PAAS) featuring computer software platforms for advisory services relating to the installation, maintenance, repair and management of heating and cooling apparatus; Providing online non-downloadable software for advisory services relating to the installation, maintenance, repair and management of heating and cooling apparatus for data centers, data-processing centers, computer centers, computing centers, information processing centers, data processing centers, information technology centers; Platform as a service (PAAS) featuring computer software platforms for advisory services relating to the installation, maintenance, repair and management of heating and cooling apparatus for data centers, data-processing centers, computer centers, computing centers, information processing centers, data processing centers, information technology centers; Scientific consultancy, design, testing, research and analysis services, namely, in the field of computer software, data center management, data analysis, data management, data systemization, data processing; Asset management and optimization, network mapping and management, data center capacity planning and utilization, task management and data center reporting; Technological consultancy; Computer design, testing and research, namely, in the field of computer software, data center management, data analysis, data management, data systemization, data processing, asset management and optimization, network mapping and management, data center capacity planning and utilization, task management and data center reporting; Computer systems analysis; Computer programming services; Design of computer hardware and computer software; Rental and leasing of computers; Design of computer databases for others; Industrial analysis and research services in the field of computer software, data center management, data analysis, data management, data systemization, data processing, asset management and optimization, network mapping and management, data center capacity planning and utilization, task management and data center reporting; Engineering services; Engineering design for others; Drawing up of plans and engineering drawings; Computer project management and technical support services; Project management (technical support); Computerized analysis of data relating to computer software, data center management, data analysis, data management, data systemization, data processing, asset management and optimization, network mapping and management, data center capacity planning and utilization, task management and data center reporting; Technical data analysis services in the field of computer software, data center management, data analysis, data management, data systemization, data processing, asset management and optimization, network mapping and management, data center capacity planning and utilization, task management and data center reporting; Providing technical advice and assistance in the field of computer software, data center management, data analysis, data management, data systemization, data processing, work management, work flow management, asset management and optimization, network mapping and management, data center capacity planning and utilization, task management and data center reporting via an interactive web site or a global computer information network; Providing technical advice, information and assistance about the Internet; Providing information in the field of computers and computer peripherals; Maintenance and updating of computer software; Computer support services, namely, troubleshooting of computer hardware, software and firmware problems and the provision of back-up computer programs and facilities; Consultancy services relating to information technology; Room layout design services, namely, planning and layout design for the interior space of business establishments; Data center management services; Operation and management of data centers; Information, advisory and consultancy services in relation to all of the aforesaid services.
92.
LANCED SINE WAVE FIN CONFIGURATION FOR HEAT EXCHANGERS
Described herein is a heat exchanger comprising a plurality of plate fins. At least one plate fin comprises a plurality of holes arranged in one or more rows, and a contoured region formed adjacent to one of the plurality of holes and having a sinusoidal corrugation. The contoured region comprises a plurality of elongate adjustable lance elements, wherein the sinusoidal corrugation in each of the rows comprises three half-waves of a first wave size in the middle portion of the corresponding row, and two half-waves of a second wave size on lateral ends of the corresponding row, wherein the second wave size is smaller than the first wave size.
F28F 1/10 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
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
The heat exchanger comprises a plurality of microchannel tubes in fluidic connection with an inlet header and an outlet header, and an external distributor that comprises an inlet port and a plurality of outlet ports, wherein a plurality of feeder pipes is configured between the outlet ports of the first distributor and positioned along a length of the inlet header to enable flow of volumes of fluid from the distributor into the inlet header. Further, an auxiliary header is fluidically coupled to the outlet header using tube stubs. The auxiliary header is configured at a distance from the outlet header with the tube stubs protruding from the outlet header and extending up to the auxiliary header forming an angle from a horizontal plane of the outlet header, wherein the auxiliary header is configured to receive and collect the fluid received in the outlet header.
A drive for an air conditioning system includes a converter assembly including a Vienna rectifier having a converter capacitance across a positive DC bus and a negative DC bus; and an inverter assembly including an inverter capacitance across the positive DC bus and the negative DC bus, the inverter capacitance in electrical parallel with the converter capacitance; wherein the converter assembly and the inverter assembly are physically separate assemblies.
H02M 5/458 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
F25B 31/02 - Compressor arrangements of motor-compressor units
95.
REMOTE STATUS DISPLAY SYSTEM FOR A TRANSPORT REFRIGERATIONUNIT
A remote status display unit for a transportation refrigeration unit. The transportation refrigeration unit includes a telematics device. The remote status display device comprises: a housing and a display portion coupled to the housing. The display portion includes a screen configured to display a parameter associated with the transportation refrigeration unit. The display portion is coupled to the telematics device to display the parameter.
Described herein is a thermostat that comprises a plurality of pogo pins operatively connected to a plurality of terminal tabs associated with a terminal block assembly of the thermostat. The terminal block assembly is configured in/on a mounting bracket associated with the thermostat, such that a tip of the pogo pins extends at least partially outside from a front side of the mounting bracket. The thermostat further comprises a control unit comprising a printed circuit board that comprises a plurality of electrical pads, wherein the PCB is configured within a housing that is adapted to be removably fitted on the front side of the mounting bracket, wherein the pogo pins are configured to align and engage with the electrical pads of the PCB, upon fitment of the housing on the mounting bracket. to operatively connect the electrical pads of the PCB to the terminal tabs of the terminal block assembly.
A thermal optimization control includes processing circuitry. The processing circuitry is operable to receive information from a building housing at least one computer server, with the information including at least current thermal load. The processing circuitry is operable to control an associated HVAC system for at least an area of the building where the at least one computer server is housed. The processing circuity is operable to optimize the operation of the HVAC system based upon the current and an expected upcoming thermal load on the area of the building where the server is received to reduce energy usage by the HVAC system. A method and building are also disclosed.
A commercial refrigeration unit is disclosed, including an airflow device adapted to circulate air an airflow zone, and a microchannel evaporator disposed in the airflow zone and adapted to exchange heat with the circulating air in the airflow zone. The microchannel evaporator includes a plurality of flow circuits. Each flow circuit includes at least one tube adapted to allow a flow of refrigerant fluid therethrough. The microchannel evaporator further includes a plurality of fin elements adapted to removably couple with the plurality of flow circuits. The plurality of fin elements is arranged such that a condensation passage is formed between at least some of the fin elements to allow passage of condensate formed in the microchannel evaporator. The microchannel evaporator is oriented in the airflow zone, such that the passage of condensate is downstream along a direction of flow of circulating air towards a first surface of the microchannel evaporator.
A heat exchanger is disclosed. The heat exchanger comprises an inlet header that comprises first compartments separated by first walls, a plurality of microchannel tubes extending between and in fluidic connection with the first compartments and an outlet header of the heat exchanger, and a first distributor comprising an inlet port and a plurality of outlet ports. A plurality of feeder pipes is configured between the first compartments of the inlet header and the outlet ports of the first distributor, such that each of the first compartments remains fluidically connected to one of the outlet ports of the first distributor by one of the feeder pipes to allow the flow of an equal volume of fluid from the first distributor into each of the first compartments. Further, a second distributor is configured within the inlet header to mix and allow the flow of fluid into each of the first compartments.
Embodiments of the disclosure describe systems and methods for a portable fire alarm device. The device includes a sensing unit configured to a sensing unit configured to receive signals from at least one of on-board sensors and remotely located sensor devices to generate sensor related data. The device also includes an alert generation unit configured to generate an alert based on the sensor-related data indicating a potential fire hazard. The device also includes a power unit comprising at least a pluggable power interface to enable a connection of the portable fire alarm device with an Alternating Current (AC) outlet to supply power to the sensing unit and the alert generation unit to generate the alert. The device further includes an interface module configured to establish a connection with a communication module of another device to send the generated alert to one or more external electronic devices.
