A heating system including a gas burner configured to burn gas to produce heat. The gas burner includes a gas inlet and a gas burner controller. A gas valve is arranged to regulate the flow of gas to the gas inlet of the gas burner. The system includes power lines. The gas valve is connected to the gas burner controller via one or more of the power lines. A gas valve control unit is operatively connected to the gas valve. The gas valve control unit includes stored parameter data of the gas valve. The gas burner controller transmits an enquiry signal to the gas valve control unit. The gas valve control unit is operative to transmit the parameter data to the gas burner controller in response to receipt of the enquiry signal. The enquiry signal and the parameter data are transmitted via the one or more power lines.
A control system for a heating system, including a blending valve configured to be connected to a heat source and a heating circuit conduit. The blending valve is configured to mix a heating water supply with the return flow from the heating circuit and supply the mixed water to the heating circuit. The blending valve has a first temperature threshold corresponding to the desired operating temperature of the heating circuit and a second temperature threshold that is substantially lower than the return temperature. An actuator is provided the switches the blending valve to the first temperature threshold to activate the heating circuit and to the second temperature circuit to deactivate the heating circuit. The actuator is connected to the pump and operates the pump when activating the heating circuit.
Method for pressure monitoring a pressure-dependent process comprising the following steps: Measuring over time a pressure of the pressure-dependent process. Processing the measured pressure by determining if the measured pressure (10, 20) or a filtered pressure obtained from the measured pressure is inside or outside defined pressure ranges (11, 12, 13, 14), each pressure range being defined by a respective lower limit (A, C, E, G) and by a respective upper limit (B, D, F, H). Generating a pressure monitoring signal in such a way that the pressure monitoring signal has a first value or first status if the measured pressure or the filtered pressure is inside a respective pressure range (11, 12, 13, 14), that the pressure monitoring signal has a second value or second status if the measured pressure or the filtered pressure is outside a respective pressure range (11, 12, 13, 14) violating a safety relevant limit (A), and that the pressure monitoring signal has a third value or third status if the measured pressure or the filtered pressure is outside a respective pressure range violating a nonsafety relevant limit (B, C, D, E, F, G, H).
Method for operating a gas burner appliance (10), by providing during an actual burner-on-phase of the gas burner appliance (10) in request to an actual nominal heat demand a flow of a gas/air mixture (M) to a burner chamber (11), the gas/air mixture (M) having a defined mixing ratio of gas (G) and air (A), wherein said gas/air mixture (M) is provided by a mixing device (25) mixing an air flow with a gas flow, wherein the air flow or the flow of the gas/air mixture is provided by a fan (14) in such a way that a fan speed of the fan (14) depends on the actual nominal heat demand, wherein the fan speed range of the fan (14) defines a modulation range of the gas burner appliance (10), wherein said defined mixing ratio of gas (G) and air (A) of the gas/air mixture (M) is controlled by a controller (26) using as input a signal provided by a sensor (13) and providing as output a control variable for an electric or electronic gas flow modulator (18) in order to keep the mixing ratio of gas (G) and air (A) at the defined mixing ratio over the modulation range of the gas burner appliance (10). If the actual nominal heat demand of the gas burner appliance (10) is no longer present the following steps are automatically executed in order to set-up the gas burner appliance (10) for an upcoming burner start: Decrease during the actual burner-on-phase the fan speed of the fan (14) to a defined fan speed while keeping the mixing ratio of gas (G) and air (A) of the gas/air mixture (M) at the de-fined mixing ratio thereby decreasing the opening position of the gas flow modulator (18). Keep the gas flow modulator (18) at said decreased opening position and terminate the actual burner-on-phase of the gas burner appliance (10).
Water heater (10) comprising a gas burner (11) being configured to combust gas if a heat demand is present, namely if heated water is requested by at least one water consumer (24), further comprising a heat exchanger (17) being configured to heat water using the thermal energy provided with the combustion of the gas, wherein the heat exchanger is a condensing heat exchanger, further comprising an input pipe (18) being configured to provide water to be heated to the heat exchanger (17), further comprising an output pipe (19) being configured to provide water heated by the heat exchanger (17) to the at least one water consumer (24), further comprising a siphon or trap (22) being configured to collect condensate resulting at the condensing heat exchanger (17) during operation of the water heater (10), further comprising a first connection pipe (21) and a valve (23) acting together with the first connection pipe (21), both the first connection pipe (21) and the valve (23) being configured to guide a water heated by heat exchanger (17) from the output pipe (19) to the siphon or trap (22), and/or to guide water not heated by the heat exchanger (17) from the output pipe (19) to the siphon or trap (22).
A gas flow regulation system is provided, the system comprising a solenoid valve configured to transition between an open position and a closed position, the solenoid valve comprising a solenoid; a power source; a switch configured to connect or disconnect the power source to the solenoid valve depending on a duty cycle of the system; and a controller comprising a memory storing: a mathematical model of an electrical circuit comprising the solenoid valve, the power source and the switch; and instructions to execute the following steps: determine a required value of current through the solenoid; measure a response of the electrical circuit to a testing signal; calculate, based on the required value of current through the solenoid, the response of the electrical circuit to the testing signal and the mathematical model of the electrical circuit, a compensation value to a duty cycle of the system; adjust the duty cycle of the system based on the compensation value.
G05D 16/20 - Control of fluid pressure characterised by the use of electric means
G05F 1/00 - Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
7.
Method and Controller for Operating a Gas Burner Appliance
Method for operating a gas burner appliance (10), the gas burner appliance (10) comprising: a combustion chamber (11), a mixing device (23), a fan (14), a gas safety valve unit (19) assigned to the gas duct (16) having a first gas safety valve (19a) and a second gas safety valve (19b) positioned downstream of the first gas safety valve (19a), a gas flow modulator (18) assigned to the gas duct (16), and an electrical or electronic absolute pressure sensor (21) assigned to the gas duct (16) positioned downstream of the first gas safety valve (19a). The gas burner appliance (10) is operated to compensate for a fluctuating gas inlet pressure of the gas burner appliance by executing the following steps: Measure a first absolute pressure by the absolute pressure sensor (21) when at least the first gas safety valve (19a) of the gas safety valve unit (19) is closed. Measure a second absolute pressure by the absolute pressure sensor (21) when the gas safety valve unit (19) is opened. Determine a pressure difference between the first absolute pressure or a pressure depending on the first absolute pressure and the second absolute pressure or a pressure depending on the second absolute pressure. Operate the gas flow modulator (18) dependent from said pressure difference.
Method for operating a gas burner appliance (10). the gas burner appliance (10) comprising: a combustion chamber (11) in which a defined gas/air mixture is combusted. a mixing device (23) to provide said gas/air mixture. a gas safety valve unit (19) assigned to the gas duct (16) to open or close the gas duct (16) having a first gas safety valve (19a) and a second gas safety valve (19b) positioned downstream of the first gas safety valve (19a). a gas flow modulator (18) assigned to the gas duct (16), an electrical or electronic absolute pressure sensor (21) positioned downstream of the first gas safety valve (19a). wherein the gas burner appliance (10) goes into lockout state if a defined number of burner-start-ups of the gas burner appliance (10) failed. namely did not result into a combustion, and wherein the gas burner appliance (10) is operated by executing the following steps to provide an electrical or electronic pressure-switch functionality: Before each burner-start-up of the gas burner appliance (10) measuring a first absolute pressure by the absolute pressure sensor (21) when the first gas safety valve (19a) is closed. During each burner-start-up of the gas burner appliance (10) measuring a second absolute pressure by the absolute pressure sensor (21) when the first gas safety valve (19a) is opened, determining a pressure difference between the first and second absolute pressure, and comparing the pressure difference with a threshold. A lockout of gas burner appliance (10) is allowed or prevented on basis of the comparison of the pressure difference with the threshold.
Flow modulator (10) for a fluid like combustion gas, comprising: a modulator body (11) having a channel (14) providing a flow passage (20) for the fluid: a valve body (17) having an opening (18) providing another flow passage (19) for the fluid: an actuator (21) by which the valve body (17) is rotatably displaceable relative to the modulator body (11) to modulate the fluid flow by changing the overlap between the opening (18) or flow channel (19) of the valve body (17) and the channel (14) or flow passage (20) of the modulator body (11); a gear transmission (22), wherein an input side of the gear transmission (22) is in operative connection with the actuator (21) having a fixed axis of rotation (23), and wherein an output side of the gear transmission (22) is in operative connection with the valve body (17) having a translationally displaceable axis of rotation (24).
F16K 3/08 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing facesPackings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular closure plates rotatable around their centres
F16K 31/04 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a motor
F16K 31/53 - Mechanical actuating means with toothed gearing
F23D 14/46 - Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid Details
10.
Method and Controller to Operate a Domestic Hot Water System and Domestic Hot Water System
A method may measure a respective temperature at a respective remote location or at the respective water pipe with the respective temperature sensor. A method may determine from the respective temperature measured by the respective temperature sensor a water usage event at the respective remote location. A method may determine during a determined water usage event a temperature profile from the temperature measured by the respective temperature sensor. A method may determine from the temperature profile determined during the water usage event a risk factor of microbiological growth at the respective remote location or of microbiological growth within the respective water pipe. A method may execute a disinfection cycle for the respective remote location or the respective water pipe if the respective risk factor of microbiological growth is above a respective risk threshold.
Method for operating a gas burner appliance (10), the gas burner appliance com-prising: a combustion chamber (11) in which a defined gas/air mixture is combusted after combustion has been started; a mixing device (25) to provide said gas/air mixture by mixing an air flow provided by an air duct (15) with a gas flow provided by a gas duct (16); a fan (14) to provide the air flow or the flow of the gas/air mixture; a gas safety valve unit (19) assigned to the gas duct to open or close the gas duct; a gas flow modulator (18) or a gas flow regulator (28) assigned to the gas duct to keep a mixing ratio of the defined gas/air mixture constant over the modulation range of the gas burner appliance; an absolute pressure sensor (21) positioned between the gas safety valve unit and the mixing device, wherein the gas burner appliance is operated to determine the air flow resistance of the same by executing the following steps before combustion becomes started: Measuring a first absolute pressure by the absolute pressure sensor (21) when the gas safety valve unit (19) is closed and when the fan (14) is stopped. Measuring a second absolute pressure by the absolute pressure sensor (21) when the gas safety valve unit (19) is closed and when the fan (14) is running. Determining a pressure difference between the first absolute pressure and the second absolute pressure. Determining on basis of the pressure difference the air flow resistance of the gas burner appliance.
The present disclosure describes a sealing assembly (100) for sealing a shaft (150) passage opening (141) comprising: a rotatable motor shaft (150) with at least one bearing (161) which is supported by at least one bearing support (170), a motor plate (140) with a passage opening (141) for the motor shaft (150) with the at least one bearing (161), a seal (110) having a first scaling portion (111) and a second scaling portion (112), wherein the first sealing portion (111) is arranged between at least a portion of an outer peripheral surface of the at least one bearing (161) and a portion of the bearing support (170); and the second scaling portion (112) extends radially outwardly in a direction away from the motor shaft (150) and is fixed against radial and axial displacements on the motor plate (140) by fixing means, wherein the second sealing portion (112) is spaced from an edge of the passage opening (141).
In one embodiment, the present disclosure provides a vibration damping device configured to decouple vibration of an electric motor for a ventilator, comprising: a base plate (140); a bearing unit (150) for supporting the electric motor, a plurality of decoupling elements (120), which are releasably coupled via retaining elements (151) to the bearing unit (150) and positionable between the bearing unit (150) and the base plate (140): wherein: the base plate (140) comprises mounting structures (141) for the decoupling elements (120) and fixing means (110) with a head (111): and each decoupling element (120) comprises adjacent to a recess at least one clamping section (121) for the corresponding fixing means (110) on the base plate (140); further wherein each of the fixing means (110) is configured to establish a force-fit and/or form-fit connection with the corresponding mounting structure (141) and the at least one clamping section (121) of the decoupling element (120) is pressed between a portion of the head (112) and the mounting structure (141) for a backlash free mounting of the decoupling element (120) to the base plate (140) in its mounted state. Due to the backlash-free mounting, the damping element cannot be loosened in the mounted state.
There is provided a pressure sensing device comprising a first elongated hollow member comprising a first opening located at a first end of the first elongated hollow member: a second opening located at a second end opposite to the first end of the elongated hollow member: a third opening located at between the first and the second end of the first elongated hollow member. The pressure sensing device further comprises a second elongated hollow member, the second elongated hollow member being connected to the first elongated hollow member via the third opening, wherein the first opening being configured to connect the inside of the second elongated member to the inside of a third hollow member: one of the free end of the second elongated member or third opening configured to open out to external atmospheric pressure through an aperture: and a pressure sensing element being connected to the other one of the free end of the second elongated member or the third opening. There is also provided a method for measuring pressure using the pressure sensing device.
G01L 19/00 - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
B33Y 80/00 - Products made by additive manufacturing
G01L 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
Partially-premixed gas burner appliance (10), comprising a combustion chamber (11), a fan (17) and a gas modulator (20). The fan (17) is configured to provide an air flow to the combustion chamber (11) and is assigned to an air inlet port (11A) of the combustion chamber or to an air duct (18) configured to provide the air to the air inlet port. An air flow restriction element (19) is assigned to the air inlet port (11A) or to the air duct (18). The air flow restriction element (19) is configured to provide a pressure drop so that the pressure downstream of the air flow restriction element (19) is lower than the pressure upstream of the same. The gas modulator (20) is configured to provide a gas flow to the combustion chamber (11), wherein a first portion of the air provided by the fan (17) is premixed with the gas flow before the gas is combusted, and wherein a second portion of the air provided by the fan (17) is mixed with the gas while the gas is combusted. The gas modulator (20) is a pneumatic gas control valve, wherein the pneumatic gas control valve has a main gas valve (22), a safety gas valve (23), a servo gas valve (24) and gas outlet pres-sure regulator (25). The gas outlet pressure regulator (25), namely a first chamber (33) of the same in which a pressure is present that influences the nominal-value of the gas outlet pressure of the pneumatic gas control valve, is connected to the air inlet port (11A) or to the air duct (18) upstream of the air flow restriction element (19) such that the gas outlet pressure provided by the pneumatic gas control valve de-pends on the air pressure upstream of the air flow restriction element (19).
Method for operating a gas burner appliance (10) comprising: a combustion chamber (11), an ignition device (27), a fan (14), a gas safety valve unit (19) assigned to the gas duct (16), an electric gas flow modulator (18) assigned to the gas duct (16), a sensor (21) positioned between the gas safety valve unit (19) and the gas flow modulator (18), wherein the gas burner appliance (10) is operated to determine the gas family of the gas of the gas/air mixture by the following steps: Before the gas burner appliance becomes started measuring the ambient air pressure by the sensor (21), wherein the ambient air pressure is measured when the safety valve unit (19) is closed, the gas flow modulator (18) is opened and the fan (14) is stopped. When the gas burner appliance (10) becomes started running the fan (14) at a defined fan speed, increasing the opening of the gas flow modulator (18) while activating the ignition device (27) trying to ignite the gas/air mixture until the activation of ignition device results into a combustion of the gas/air mixture. Determining from the fan speed of the fan (14) and from the measured ambient air pressure an air volume flow. Measuring the gas pressure by the sensor (21) when the safety valve unit (19) is opened, the gas flow modulator (18) is opened and the fan (14) is running. Determining from the opening of the gas flow modulator (18) at which the combustion started and from the measured gas pressure a gas volume flow. Determining a ratio between the gas volume flow and the air volume and from said ratio the gas family of the combusted gas.
F23N 1/02 - Regulating fuel supply conjointly with air supply
F23D 14/60 - Devices for simultaneous control of gas and combustion air
F23N 5/12 - Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods
F23N 5/18 - Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
Thermostatic mixing valve (10) comprising a housing (11), the housing comprising a first inlet port (12) for water having a first temperature, a second inlet port (13) for water having a second temperature, and an outlet port (14) for mixed water having a mixing temperature depending on a mixing ratio of the water having the first temperature and of the water having the second temperature. The thermostatic mixing valve further comprises a valve insert (15) positioned within the housing (11), wherein the valve insert has a tubular element (16), a thermal element (17) and a spring element (18), wherein the tubular element (16), the thermal element (17) and the spring element (18) control together the mixing ratio of the mixed water such that an actual value of the mixing temperature corresponds to a nominal value of the mixing temperature. The thermostatic mixing valve further comprises a first setting unit (19) having a first spindle (21) and being configured to set the nominal value of the mixing temperature. The thermostatic mixing valve further comprises a second setting unit (20) having a second spindle (22) and being configured to select an operation mode of the thermostatic mixing valve, wherein the second spindle (22) is guided within the first spindle (21), and wherein the second spindle (22) is configured to provide a linear movement of the second spindle (22) relative to the first spindle (21) when rotating the second spindle (22) relative to the first spindle (21) in order to select either a first operation mode or a second operation mode for the thermostatic mixing valve.
A system for measuring position of a throttle is provided, the system comprising a throttle, arranged to adjust the flow of a gas; a stepper motor connected to the throttle by a connecting member (204), the stepper motor being arranged to move the connecting member and the throttle; a first member (202), arranged to be movable together with connecting member; a second member (201) arranged such that the movement of the of the first member relative to the second member changes an electrical parameter representative of the position and/or movement of the throttle.
F16K 31/04 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a motor
F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
F23D 14/60 - Devices for simultaneous control of gas and combustion air
F23N 1/02 - Regulating fuel supply conjointly with air supply
H02P 8/00 - Arrangements for controlling dynamo-electric motors rotating step by step
19.
SYSTEMS AND METHODS FOR MEASURING THROTTLE POSITION
A system for measuring position of a gas valve throttle (212) is provided, the system comprising a gas valve throttle, arranged to adjust the flow of a gas; a stepper motor (204) connected to the throttle by a connecting member (205), the stepper motor being arranged to move the connecting member and the throttle; a first member (203), arranged to be movable together with connecting member; a second member (201), arranged such that the movement of the of the first member relative to the second member changes an electrical parameter representative of the position and/or movement of the gas valve throttle.
F16K 31/04 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a motor
F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
F23D 14/60 - Devices for simultaneous control of gas and combustion air
F23N 1/02 - Regulating fuel supply conjointly with air supply
H02P 8/00 - Arrangements for controlling dynamo-electric motors rotating step by step
F23K 5/00 - Feeding or distributing other fuel to combustion apparatus
F16K 3/02 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing facesPackings therefor
F16K 3/34 - Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
20.
METHOD AND CONTROLLER TO OPERATE A HOT WATER STORAGE DEVICE HEATER AND HOT WATER STORAGE DEVICE
Method to operate a hot water storage device (10) comprising a tank (11), a heating unit (15), at least one temperature sensor (19, 20), and a controller (21) to control the heating unit (15). The method comprises the following steps: Determine from a water temperature measurement signal provided by the at least one temperature sensor (19, 20) a water usage profile, said water usage profile providing for defined time intervals of a day and/or for defined days of a week a nominal temperature and a nominal volume of the heated water to be stored within the tank. Operate the heating unit (15) in such a manner that for each defined time interval of a day and/or for each defined day of a week the actual temperature and the actual volume of the heated water stored withing the tank corresponds automatically to the respective nominal value of the water usage profile.
F24H 15/355 - Control of heat-generating means in heaters
F24H 15/421 - Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based using pre-stored data
F24H 15/457 - Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based remotely accessible using telephone networks or Internet communication
G05B 17/00 - Systems involving the use of models or simulators of said systems
A compact antenna device is provided. The compact antenna device comprises: a first antenna segment configured to work at a first frequency; a second antenna segment connected to the first antenna segment by a first filter; a third antenna segment configured to work at the first frequency and connected to the second antenna segment by a second filter; a controller; a first switch configured to connect the controller to the first antenna segment or the third antenna segment, thereby selecting an antenna operating at the first frequency; a frequency selector, wherein the frequency selector together with the first and second filters are configured to enable a second operating frequency of the device; and a third filter configured to connect the first antenna segment to the first switch.
H01Q 5/321 - Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors within a radiating element or between connected radiating elements
H01Q 5/335 - Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
H01Q 9/42 - Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
H01Q 1/22 - SupportsMounting means by structural association with other equipment or articles
22.
GAS-FLOW ADJUSTMENT DEVICE FOR A GAS BURNER APPLIANCE AND GAS BURNER APPLIANCE
Gas-flow adjustment device (24) for a gas burner appliance, having a housing (27), a throttle (25) and an actuator (26). The housing (27) provides an inlet (28) for a gas-flow and an outlet (29) for the gas-flow. The throttle (25) is configured to adjust the amount of the gas-flow from the inlet (28) to the outlet (29), wherein the throttle (25) has a static element (34) and a moving element (25), wherein the moving element being (35) is configured to move relative to static element (34) in a linear direction, wherein the relative position of the moving element (35) relative to the static element (34) defines the amount of the gas-flow from the inlet (28) to the outlet (29). The actuator (26) has a motor (36) and a threaded spindle (37), wherein the motor (36) is configured to rotate the threaded spindle (37), wherein the threaded spindle (37) is configured to move the moving element (35) relative to static element (34) in a linear direction upon rotation of the threaded spindle (37) by the motor (36). The moving element (35) of throttle (25) is made from plastics. The moving element (35) of the throttle (25) and/or the actuator (26) comprise at least one alignment feature (40, 41, 44, 46, 47, 51, 52, 56) being configured to provide an accurate relative position of the moving element (35) relative to the static element (34).
A controller for a water heater which has a power source configured to power up the components of the controller, wherein the power source is independent of a battery or mains electricity and uses a thermoelectric effect; and a gas sensor powered from the controller via the power source, wherein the gas sensor is configured to be positioned externally to the controller and connected to the controller, and wherein the controller is configured to trigger an alarm if a concentration of gas in the vicinity of the gas sensor is above a predetermined threshold.
Embodiments of the present disclosure enable electronic messaging using a network communications architecture, including receiving, by processor via a status application programming interface (API) of an administration service, a performance incident indication indicative of a performance incident associated with an application service. The administration service determines a performance incident status based at least in part on the performance incident indication and determines a message having a notification of the performance incident. The administration service determines front-ends associated with the application service. The administration service generates, using front-end specific adapters of the status API, a front-end specific API call to each front-end to update each front-end with the message with content and formatting specific to each front-end. The administration service generates, using a public status page specific adapter of the status API, public status page specific API call to public status page to update the public status page with the message.
3-WAY FLUID VALVE, APPLIANCE FOR HANDLING A FLUID FLOW HAVING A 3-WAY FLUID VALVE AND WATER HEATER HAVING A 3-WAY FLUID VALVE AND METHODS TO OPERATE THE SAME
3-way fluid valve (30), having a housing (31) providing a first connection port (32), a second connection port (33) and a third connection port (34), a valve plunger (35) positioned within the housing (31), an actuator (36) for actuating the valve plunger (35) and for transferring the valve plunger (35) and thereby the 3-way fluid valve (30) between different states, wherein in a first state of the valve plunger (35) and 3-way fluid valve (30) a fluid flow through the first connection port (32) and through the second connection port (33) and through the third connection port (34) are all blocked, wherein in a second state of the valve plunger (35) and 3-wayfluid valve (30) only a fluid flow through the first connection port (32) is blocked allowing a fluid flow from the second connection port (33) to the third connection port (34), wherein in a third state of the valve plunger (35) and 3-way fluid valve (30) only a fluid flow through third connection port (34) is blocked allowing a fluid flow from the first connection port (32) to the second connection port (33).
F16K 11/04 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only lift valves
F16K 11/06 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves
F24D 19/00 - DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMSDOMESTIC HOT-WATER SUPPLY SYSTEMSELEMENTS OR COMPONENTS THEREFOR Details
F24H 9/00 - FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL Details
26.
A PRESSURE-INDEPENDENT CONTROL VALVE WITH A DRAIN, AND METHOD OF DRAINING THE VALVE
The invention relates to a pressure-independent control valve comprising a fluid inlet; a fluid outlet; a fluid path between the fluid inlet and the fluid outlet; a pressure differential control, wherein the pressure differential control comprises a chamber in fluid communication with the fluid path; and a drain. The drain comprises a drain outlet in fluid communication with the chamber and a drain closure to open and close the drain outlet. Fluid can drain from the valve when the drain outlet is open. The drain closure is movable between an open position to open the valve and a closed position to close the valve. The invention further relates to a fluid system comprising the valve with the drain, and to a method of draining the valve via the drain.
The invention relates to a pressure independent control valve comprising: a valve body comprising a fluid inlet and a fluid outlet, a fluid path between the fluid inlet and the fluid outlet; a pressure differential control; and a sleeve inserted within the valve body; whereby the pressure differential control comprises a chamber in fluid communication with the fluid inlet or the fluid outlet. When the chamber is in fluid communication with the fluid outlet, the sleeve comprises a first fluid channel extending between the fluid outlet and the chamber to provide the fluid communication between the fluid outlet and the second chamber. Alternatively, when the chamber is in fluid communication with the fluid inlet, the sleeve comprising a second fluid channel extending between the fluid inlet and the chamber to provide the fluid communication between the fluid inlet and the chamber. The invention also relates to a fluid system comprising the pressure- independent control valve comprising the sleeve and to a method of distributing fluid pressure using the pressure-independent control valve with the sleeve.
Method for micro-leakage detection in a fluid system (10), preferably in a potable water system installed in a building (11), wherein the fluid system (10) has a fluid pipe (12) with a fluid valve (14), wherein a fluid flow through the fluid pipe (12) is stopped when the fluid valve (14) is closed, and wherein a fluid flow through the fluid pipe (12) is allowed when the fluid valve (14) is opened. The method comprises the following steps: Measuring the fluid flow through the fluid pipe (12) by a flow meter (16). Measuring the pipe temperature of the fluid pipe (12) by at least one pipe temperature sensor (17a, 17b). When there is no fluid flow measured by the flow meter (16), particularly because or when the fluid flow through the fluid pipe (12) is stopped by the fluid valve (14) being closed, analyzing the pipe temperature for the micro-leakage detection.
G01M 3/26 - Investigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
A pressure reducer includes a housing, defining upstream and downstream pressure chambers. A valve is positioned in the housing and includes a diaphragm acting on a valve tappet. The valve includes a valve body fastened to the valve tappet and cooperating with a sealing element. The valve body has a cylindrical, hollow-cylindrical, or conical contour and forms a sealing surface effective in the radial direction. The sealing surface is interrupted at at least one circumferential position by a flow channel, such that, depending on a pressure drop in the downstream pressure chamber, either the sealing element lies against the sealing surface and completely closes a flow region between the sealing element and the sealing surface or the sealing element is removed from the sealing surface and completely opens the flow region or the sealing element lies against the sealing surface and partly opens the flow region exclusively by the respective flow channel.
G05D 16/06 - Control of fluid pressure without auxiliary power the sensing element being a flexible member yielding to pressure, e.g. diaphragm, bellows, capsule
G01M 3/28 - Investigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables, or tubesInvestigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipe joints or sealsInvestigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for valves
30.
Method and Controller for Operating a Water System and Water System
Method for operating a water system (10). The water system (10) comprises a fresh water subsystem (11) being configured to provide fresh water to water consumers (13, 14, 15, 16, 17, 19), wherein first water consumers (13, 14) generate black water as waste water, and wherein second water consumers (15, 16, 17, 18, 19) generate grey water as waste water. The water system (10) comprises a waste water subsystem (12) being configured to receive the waste water from the water consumers (13, 14, 15, 16, 17, 19). The waste water sub system (12) comprises a waste water diverter (23) being configured to provide in a black water status of the waste water diverter (23) waste water to a drain (24) thereby treating waste water as black water, and provide in a grey water status of the waste water diverter (23) waste water to a grey water tank (22) thereby treating waste water as grey water. The method comprises the following steps: Detect by a fresh water controller (26) being installed in the fresh water subsystem (11) a fresh water consumption in the fresh water subsystem (11) and provide a respective first output signal to a grey water controller (25). Determine by the grey water controller (25) on basis of the first output signal provided by the fresh water controller (26) a control signal for the waste water diverter (23) to switch the same either into the black water status or into the grey water status.
A mounting clip includes a valve unit housing and a flange. The actuator unit has an actuator unit housing and a shoulder. The mounting clip has first sections positioned in first level, that are straight and run parallel to each other within the first level and are configured to be inserted into grooves provided at the shoulder. A second section is positioned in a second level, is U-shaped, and is configured to be inserted into a recess provided at the flange. Third sections extend between each of the first sections and the second section, each of the third sections has first subsections being bent, a second subsection being bent, and a third subsection being straight or angled. The first subsections extend between the first sections and the third subsections. The second subsections extend between the second section and the third sub-sections.
F16B 2/24 - Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening of resilient material, e.g. rubbery material of metal
F16K 27/00 - Construction of housingsUse of materials therefor
Method for pressure monitoring a pressure-dependent process comprising the following steps: Measuring over time a pressure of the pressure-dependent process. Processing the measured pressure by determining if the measured pressure (10, 20) or a filtered pressure obtained from the measured pressure is inside or outside defined pressure ranges (11, 12, 13, 14), each pressure range being defined by a respective lower limit (A, C, E, G) and by a respective upper limit (B, D, F, H). Generating a pressure monitoring signal in such a way that the pressure monitoring signal has a first value or first status if the measured pressure or the filtered pressure is inside a respective pressure range (11, 12, 13, 14), that the pressure monitoring signal has a second value or second status if the measured pressure or the filtered pressure is outside a respective pressure range (11, 12, 13, 14) violating a safety relevant limit (A), and that the pressure monitoring signal has a third value or third status if the measured pressure or the filtered pressure is outside a respective pressure range violating a nonsafety relevant limit (B, C, D, E, F, G, H).
Method for operating a gas burner appliance (10), by providing during an actual burner-on-phase of the gas burner appliance (10) in request to an actual nominal heat demand a flow of a gas/air mixture (M) to a burner chamber (11), the gas/air mixture (M) having a defined mixing ratio of gas (G) and air (A), wherein said gas/air mixture (M) is provided by a mixing device (25) mixing an air flow with a gas flow, wherein the air flow or the flow of the gas/air mixture is provided by a fan (14) in such a way that a fan speed of the fan (14) depends on the actual nominal heat demand, wherein the fan speed range of the fan (14) defines a modulation range of the gas burner appliance (10), wherein said defined mixing ratio of gas (G) and air (A) of the gas/air mixture (M) is controlled by a controller (26) using as input a signal provided by a sensor (13) and providing as output a control variable for an electric or electronic gas flow modulator (18) in order to keep the mixing ratio of gas (G) and air (A) at the defined mixing ratio over the modulation range of the gas burner appliance (10). If the actual nominal heat demand of the gas burner appliance (10) is no longer present the following steps are automatically executed in order to set- up the gas burner appliance (10) for an upcoming burner start: Decrease during the actual burner-on-phase the fan speed of the fan (14) to a defined fan speed while keeping the mixing ratio of gas (G) and air (A) of the gas/air mixture (M) at the de- fined mixing ratio thereby decreasing the opening position of the gas flow modulator (18). Keep the gas flow modulator (18) at said decreased opening position and terminate the actual burner-on-phase of the gas burner appliance (10).
Water heater (10) comprising a gas burner (11) being configured to combust gas if a heat demand is present, namely if heated water is requested by at least one water consumer (24), further comprising a heat exchanger (17) being configured to heat water using the thermal energy provided with the combustion of the gas, wherein the heat exchanger is a condensing heat exchanger, further comprising an input pipe (18) being configured to provide water to be heated to the heat exchanger (17), further comprising an output pipe (19) being configured to provide water heated by the heat exchanger (17) to the at least one water consumer (24), further comprising a siphon or trap (22) being configured to collect condensate resulting at the condensing heat exchanger (17) during operation of the water heater (10), further comprising a first connection pipe (21) and a valve (23) acting together with the first connection pipe (21), both the first connection pipe (21) and the valve (23) being configured to guide water heated by heat exchanger (17) from the output pipe (19) to the siphon or trap (22), and/or to guide water not heated by the heat exchanger (17) from the output pipe (19) to the siphon or trap (22).
Flame monitoring device (23) for a gas burner appliance (10), the gas burner appliance (10) being configured to burn a combustible gas, the combustion of the combustible gas resulting into a flame (12), comprising a flame supervision device (24) providing as measurement signal an electrical voltage signal depending on the presence of the flame (12), and an electronic circuit (25) converting the electrical voltage signal provided by the flame supervision device (24) into an electrical current signal.
F23N 5/24 - Preventing development of abnormal or undesired conditions, i.e. safety arrangements
F23N 5/10 - Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples
F23N 5/12 - Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods
36.
METHOD AND CONTROLLER FOR OPERATING A GAS BURNER APPLIANCE
Method for operating a gas burner appliance (10), the gas burner appliance (10) comprising: a combustion chamber (11), a mixing device (23), a fan (14), a gas safety valve unit (19) assigned to the gas duct (16) having a first gas safety valve (19a) and a second gas safety valve (19b) positioned downstream of the first gas safety valve (19a), a gas flow modulator (18) assigned to the gas duct (16), and an electrical or electronic absolute pressure sensor (21) assigned to the gas duct (16) positioned downstream of the first gas safety valve (19a). The gas burner appliance (10) is operated to compensate for a fluctuating gas inlet pressure of the gas burner appliance by executing the following steps: Measure a first absolute pressure by the absolute pressure sensor (21) when at least the first gas safety valve (19a) of the gas safety valve unit (19) is closed. Measure a second absolute pressure by the absolute pressure sensor (21) when the gas safety valve unit (19) is opened. Determine a pressure difference between the first absolute pressure or a pressure depending on the first absolute pressure and the second absolute pressure or a pressure depending on the second absolute pressure. Operate the gas flow modulator (18) dependent from said pressure difference.
F23N 1/02 - Regulating fuel supply conjointly with air supply
F23N 5/12 - Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods
F23N 5/24 - Preventing development of abnormal or undesired conditions, i.e. safety arrangements
F23N 5/18 - Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
37.
METHOD AND CONTROLLER FOR OPERATING A GAS BURNER APPLIANCE
Method for operating a gas burner appliance (10), the gas burner appliance (10) comprising: a combustion chamber (11) in which a defined gas/air mixture is combusted, a mixing device (23) to provide said gas/air mixture, a gas safety valve unit (19) assigned to the gas duct (16) to open or close the gas duct (16) having a first gas safety valve (19a) and a second gas safety valve (19b) positioned downstream of the first gas safety valve (19a), a gas flow modulator (18) assigned to the gas duct (16), an electrical or electronic absolute pressure sensor (21) positioned downstream of the first gas safety valve (19a), wherein the gas burner appliance (10) goes into lockout state if a defined number of burner-start-ups of the gas burner appliance (10) failed, namely did not result into a combustion, and wherein the gas burner appliance (10) is operated by executing the following steps to provide an electrical or electronic pressure-switch functionality: Before each burner-start-up of the gas burner appliance (10) measuring a first absolute pressure by the absolute pressure sensor (21) when the first gas safety valve (19a) is closed. During each burner-start-up of the gas burner appliance (10) measuring a second absolute pressure by the absolute pressure sensor (21) when the first gas safety valve (19a) is opened, determining a pressure difference between the first and second absolute pressure, and comparing the pressure difference with a threshold. A lockout of gas burner appliance (10) is allowed or prevented on basis of the comparison of the pressure difference with the threshold.
F23N 1/02 - Regulating fuel supply conjointly with air supply
F23N 5/12 - Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods
F23N 5/24 - Preventing development of abnormal or undesired conditions, i.e. safety arrangements
F23N 5/18 - Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
Flow modulator (10) for a fluid like combustion gas, comprising: a modulator body (11) having a channel (14) providing a flow passage (20) for the fluid; a valve body (17) having an opening (18) providing another flow passage (19) for the fluid; an actuator (21) by which the valve body (17) is rotatably displaceable relative to the modulator body (11) to modulate the fluid flow by changing the overlap between the opening (18) or flow channel (19) of the valve body (17) and the channel (14) or flow passage (20) of the modulator body (11); a gear transmission (22), wherein an input side of the gear transmission (22) is in op- erative connection with the actuator (21) having a fixed axis of rotation (23), and wherein an output side of the gear transmission (22) is in operative connection with the valve body (17) having a translationally displaceable axis of rotation (24).
F16K 1/00 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
F16K 3/08 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing facesPackings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular closure plates rotatable around their centres
F16K 31/53 - Mechanical actuating means with toothed gearing
Method for operating a gas burner appliance (10), the gas burner appliance com- prising: a combustion chamber (11) in which a defined gas/air mixture is combusted after combustion has been started; a mixing device (25) to provide said gas/air mixture by mixing an air flow provided by an air duct (15) with a gas flow provided by a gas duct (16); a fan (14) to provide the air flow or the flow of the gas/air mixture; a gas safety valve unit (19) assigned to the gas duct to open or close the gas duct; a gas flow modulator (18) or a gas flow regulator (28) assigned to the gas duct to keep a mixing ratio of the defined gas/air mixture constant over the modulation range of the gas burner appliance; an absolute pressure sensor (21) positioned between the gas safety valve unit and the mixing device, wherein the gas burner appliance is operated to determine the air flow resistance of the same by executing the following steps before combustion becomes started: Measuring a first absolute pressure by the absolute pressure sensor (21) when the gas safety valve unit (19) is closed and when the fan (14) is stopped. Measuring a second absolute pressure by the absolute pressure sensor (21) when the gas safety valve unit (19) is closed and when the fan (14) is running. Determining a pressure difference between the first absolute pressure and the second absolute pressure. Determining on basis of the pressure difference the air flow resistance of the gas burner appliance.
F23N 5/24 - Preventing development of abnormal or undesired conditions, i.e. safety arrangements
F23N 1/02 - Regulating fuel supply conjointly with air supply
F23N 5/12 - Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods
F23N 5/18 - Systems for controlling combustion using detectors sensitive to rate of flow of air or fuel
40.
DAMPING DEVICE FOR AN ELECTRIC MOTOR FOR A VENTILATOR
In one embodiment, the present disclosure provides a vibration damping device configured to decouple vibration of an electric motor for a ventilator, comprising: a base plate (140); a bearing unit (150) for supporting the electric motor, a plurality of decoupling elements (120), which are releasably coupled via retaining elements (151) to the bearing unit (150) and positionable between the bearing unit (150) and the base plate (140); wherein: the base plate (140) comprises mounting structures (141) for the decoupling elements (120) and fixing means (110) with a head (111); and each decoupling element (120) comprises adjacent to a recess at least one clamping section (121) for the corresponding fixing means (110) on the base plate (140); further wherein each of the fixing means (110) is configured to establish a force-fit and/or form-fit connection with the corresponding mounting structure (141) and the at least one clamping section (121) of the decoupling element (120) is pressed between a portion of the head (112) and the mounting structure (141) for a backlash free mounting of the decoupling element (120) to the base plate (140) in its mounted state. Due to the backlash-free mounting, the damping element cannot be loosened in the mounted state.
The present disclosure describes a sealing assembly (100) for sealing a shaft (150) passage opening (141) comprising: a rotatable motor shaft (150) with at least one bearing (161) which is supported by at least one bearing support (170), a motor plate (140) with a passage opening (141) for the motor shaft (150) with the at least one bearing (161), a seal (110) having a first sealing portion (111) and a second sealing portion (112), wherein the first sealing portion (111) is arranged between at least a portion of an outer peripheral surface of the at least one bearing (161) and a portion of the bearing support (170); and the second sealing portion (112) extends radially outwardly in a direction away from the motor shaft (150) and is fixed against radial and axial displacements on the motor plate (140) by fixing means, wherein the second sealing portion (112) is spaced from an edge of the passage opening (141).
There is provided a pressure sensing device comprising a first elongated hollow member comprising a first opening located at a first end of the first elongated hollow member; a second opening located at a second end opposite to the first end of the elongated hollow member; a third opening located at between the first and the second end of the first elongated hollow member. The pressure sensing device further comprises a second elongated hollow member, the second elongated hollow member being connected to the first elongated hollow member via the third opening, wherein the first opening being configured to connect the inside of the second elongated member to the inside of a third hollow member; one of the free end of the second elongated member or third opening configured to open out to external atmospheric pressure through an aperture; and a pressure sensing element being connected to the other one of the free end of the second elongated member or the third opening. There is also provided a method for measuring pressure using the pressure sensing device.
G01L 19/00 - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
G01L 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
Partially-premixed gas burner appliance (10), comprising a combustion chamber (11), a fan (17) and a gas modulator (20). The fan (17) is configured to provide an air flow to the combustion chamber (11) and is assigned to an air inlet port (11A) of the combustion chamber or to an air duct (18) configured to provide the air to the air inlet port. An air flow restriction element (19) is assigned to the air inlet port (11A) or to the air duct (18). The air flow restriction element (19) is configured to provide a pressure drop so that the pressure downstream of the air flow restriction element (19) is lower than the pressure upstream of the same. The gas modulator (20) is configured to provide a gas flow to the combustion chamber (11), wherein a first portion of the air provided by the fan (17) is premixed with the gas flow before the gas is combusted, and wherein a second portion of the air provided by the fan (17) is mixed with the gas while the gas is combusted. The gas modulator (20) is a pneumatic gas control valve, wherein the pneumatic gas control valve has a main gas valve (22), a safety gas valve (23), a servo gas valve (24) and gas outlet pres-sure regulator (25). The gas outlet pressure regulator (25), namely a first chamber (33) of the same in which a pressure is present that influences the nominal-value of the gas outlet pressure of the pneumatic gas control valve, is connected to the air inlet port (11A) or to the air duct (18) upstream of the air flow restriction element (19) such that the gas outlet pressure provided by the pneumatic gas control valve de-pends on the air pressure upstream of the air flow restriction element (19).
Method for operating a gas burner appliance (10) comprising: a combustion chamber (11), an ignition device (27), a fan (14), a gas safety valve unit (19) assigned to the gas duct (16), an electric gas flow modulator (18) assigned to the gas duct (16), a sensor (21) positioned between the gas safety valve unit (19) and the gas flow modulator (18), wherein the gas burner appliance (10) is operated to determine the gas family of the gas of the gas/air mixture by the following steps: Before the gas burner appliance becomes started measuring the ambient air pressure by the sensor (21), wherein the ambient air pressure is measured when the safety valve unit (19) is closed, the gas flow modulator (18) is opened and the fan (14) is stopped. When the gas burner appliance (10) be- comes started running the fan (14) at a defined fan speed, increasing the open- ing of the gas flow modulator (18) while activating the ignition device (27) trying to ignite the gas/air mixture until the activation of ignition device results into a combustion of the gas/air mixture. Determining from the fan speed of the fan (14) and from the measured ambient air pressure an air volume flow. Measuring the gas pressure by the sensor (21) when the safety valve unit (19) is opened, the gas flow modulator (18) is opened and the fan (14) is running. Determining from the opening of the gas flow modulator (18) at which the combustion started and from the measured gas pressure a gas volume flow. Determining a ratio between the gas volume flow and the air volume and from said ratio the gas family of the combusted gas.
F23N 5/12 - Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods
In some examples, a gas/air mixing device configured to mix gas and air to provide a gas/air mixture includes a mixer housing with a mounting flange being configured to mount the gas/air mixing device to a fan housing in such a way that a sealing surface of the mounting flange is in contact with a sealing surface of the fan housing. In some examples, the sealing surface of the mounting flange has grooves with a second radius being different from the first radius. In some examples, the sealing surface of the fan housing has a groove, with a second radius being different from the first radius. The mixer housing provides an inlet opening for air, an inlet opening for gas, and an outlet opening for the gas/air mixture. The sealing surface of the mounting flange surrounds the outlet opening of the mixer housing.
F23D 14/36 - Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air in which the compressor and burner form a single unit
In some examples, a method for operating a gas burner appliance includes determining, on basis of a nominal burner-load and on basis of a mixing ratio of gas and air of a gas/air mixture or a λ-value of the gas/air mixture, a nominal air mass flow in order to provide the nominal burner-load. The method further comprises determining the ambient air pressure and the ambient air temperature of the ambient air, determining, on basis of the ambient air pressure and on basis of the ambient air temperature, the atmospheric density of the ambient air, determining on basis of the nominal air mass flow, on basis of the determined atmospheric density of the ambient air, and on basis of a system resistance of the gas burner appliance, the fan speed of the fan in order to provide the nominal burner-load.
Method for micro-leakage detection in a fluid system (10), preferably in a potable water system installed in a building (11), wherein the fluid system (10) has a fluid pipe (12) with a fluid valve (14), wherein a fluid flow through the fluid pipe (12) is stopped when the fluid valve (14) is closed, and wherein a fluid flow through the fluid pipe (12) is allowed when the fluid valve (14) is opened. The method comprises the following steps: Measuring the fluid flow through the fluid pipe (12) by a flow meter (16). Measuring the pipe temperature of the fluid pipe (12) by at least one pipe temperature sensor (17a, 17b). When there is no fluid flow measured by the flow meter (16), particularly because or when the fluid flow through the fluid pipe (12) is stopped by the fluid valve (14) being closed, analyzing the pipe temperature for the micro-leakage detection.
G01M 3/28 - Investigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables, or tubesInvestigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipe joints or sealsInvestigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for valves
G01M 3/00 - Investigating fluid tightness of structures
G01M 3/26 - Investigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
G01F 1/684 - Structural arrangementsMounting of elements, e.g. in relation to fluid flow
E03B 7/07 - Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
In some examples, a pressure reducing valve includes a valve body defining a defining a flow path and a restricting element within the flow path. A sensing element is configured to modify a position of the restricting element in the flow path. The sensing element defines a first area in fluid communication with the flow path and a second area fluidly isolated from the flow path. The pressure reducing valve includes control circuitry configured to determine a differential pressure over a section of the flow path, determine a position of the restricting element, and determine a flow rate based on the differential pressure and the position of the restricting element.
G05D 16/02 - Modifications to reduce the effects of instability, e.g. due to vibrations, friction, abnormal temperature, overloading or imbalance
F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
In some examples, a pressure reducing valve includes a valve body defining a defining a flow path and a restricting element within the flow path. A sensing element is configured to modify a position of the restricting element in the flow path. The sensing element defines a first area in fluid communication with the flow path and a second area fluidly isolated from the flow path. The pressure reducing valve includes control circuitry configured to determine a differential pressure over a section of the flow path, determine a position of the restricting element, and determine a flow rate based on the differential pressure and the position of the restricting element.
G05D 16/06 - Control of fluid pressure without auxiliary power the sensing element being a flexible member yielding to pressure, e.g. diaphragm, bellows, capsule
G05D 16/10 - Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
G05D 16/20 - Control of fluid pressure characterised by the use of electric means
G01F 1/88 - Indirect mass flowmeters, e.g. measuring volume flow and density, temperature, or pressure with differential-pressure measurement to determine the volume flow
50.
METHOD AND CONTROLLER FOR OPERATING A WATER SYSTEM AND WATER SYSTEM
Method for operating a water system (10). The water system (10) comprises a fresh water subsystem (11) being configured to provide fresh water to water consumers (13, 14, 15, 16, 17, 19), wherein first water consumers (13, 14) gen erate black water as waste water, and wherein second water consumers (15, 16, 17, 18, 19) generate grey water as waste water. The water system (10) comprises a waste water subsystem (12) being configured to receive the waste water from the water consumers (13, 14, 15, 16, 17, 19). The waste water sub system (12) comprises a waste water diverter (23) being configured to provide in a black water status of the waste water diverter (23) waste water to a drain (24) thereby treating waste water as black water, and provide in a grey water status of the waste water diverter (23) waste water to a grey water tank (22) thereby treating waste water as grey water. The method comprises the following steps: Detect by a fresh water controller (26) being installed in the fresh water subsystem (11) a fresh water consumption in the fresh water subsystem (11) and provide a respective first output signal to a grey water controller (25). Determine by the grey water controller (25) on basis of the first output signal provided by the fresh water controller (26) a control signal for the waste water diverter (23) to switch the same either into the black water status or into the grey water status.
Mounting clip (30) to mount an actuator unit (20) to a valve unit (10), the valve unit having a valve unit housing (11) and a flange (12) formed at the valve unit housing (11), the actuator unit having an actuator unit housing (21) and a shoulder (22) formed at the actuator unit housing (21). The mounting clip has first sections (31) positioned in first level (32), wherein said first sections (31) are straight and run parallel to each other within said first level (32), and wherein said first sections (31) are configured to be inserted into grooves (25) provided at the shoulder (22) of the actuator unit. The mounting clip has a second section (33) positioned in a second level (34), wherein said second section (33) is U-shaped, and wherein said second section (33) is configured to be inserted into a recess (15) provided at the flange (12) of the valve unit. The mounting clip has third sections (35) extending between each of said first sections (31) and the second section (33), wherein each of said third sections (35) has a first subsections (35a) being bent, a second subsection (35b) being bent and a third subsection (35c) being straight or angled, wherein the first subsections (35a) of the third sections (35) extend between the first sections (31) and the third subsections (35c) of the third sections (35), wherein the second subsections (35b) of the third sections (35) extend between the second section (33) and the third sub-sections (35c) of the third sections (35).
F16K 27/00 - Construction of housingsUse of materials therefor
F16B 2/24 - Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening of resilient material, e.g. rubbery material of metal
The invention relates to a pressure reducer (10), comprising: - a housing (11), which defines an upstream pressure chamber (13) and a downstream pressure chamber (14); - a valve (12), which is positioned in the housing (11), the valve (12) having a diaphragm (16) acting on a valve tappet (15), on which diaphragm a spring force of a spring element (17) directed in the opening direction of the valve (12) and a force dependent on a pressure in the downstream pressure chamber (14) and directed in the closing direction of the valve (12) act, and the valve (12) having a valve body (22), which is fastened to the valve tappet (15) and which cooperates with a sealing element (24). The valve body (22) has a cylindrical or hollow cylindrical or conical contour and thus forms a sealing surface (23) effective in the radial direction. The sealing surface (23) of the valve body (22) is interrupted at at least one circumferential position by means of a flow channel (26) in such a way that, depending on a pressure drop in the downstream pressure chamber (14), either the sealing element (24) lies against the sealing surface (23) and completely closes a flow region (25) between the sealing element (24) and the sealing surface (23) including the flow channel (26) in question, or the sealing element (24) is removed from the sealing surface (23) and completely opens the flow region (25) including the flow channel (26) in question, or the sealing element (24) lies against the sealing surface (23) and partly opens the flow region (25) exclusively by means of the flow channel (26) in question.
G05D 16/06 - Control of fluid pressure without auxiliary power the sensing element being a flexible member yielding to pressure, e.g. diaphragm, bellows, capsule
F16K 17/04 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side spring-loaded
F16K 17/08 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side spring-loaded with special arrangements for providing a large discharge passage
F16K 17/30 - Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
G01M 3/28 - Investigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables, or tubesInvestigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipe joints or sealsInvestigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for valves
53.
FLAME MONITORING DEVICE FOR A GAS BURNER APPLIANCE AND GAS BURNER APPLIANCE
Flame monitoring device (23) for a gas burner appliance (10), the gas burner appliance (10) being configured to burn a combustible gas, the combustion of the combustible gas resulting into a flame (12), comprising a flame supervision device (24) providing as measurement signal an electrical voltage signal depending on the presence of the flame (12), and an electronic circuit (25) converting the electrical voltage signal provided by the flame supervision device (24) into an electrical current signal.
F23N 5/10 - Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples
F23N 5/12 - Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods
54.
Pressure reducing valve and method for operating the same
A pressure reducing valve and a method for operating the pressure reducing valve. The pressure reducing valve may be used in a potable water system. The pressure reducing valve can be used for gaseous media and liquid media. Preferably, the pressure reducing valve is intended for use with liquid media, most preferably for potable water.
F16K 31/385 - Operating meansReleasing devices actuated by fluid in which fluid from the conduit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side the fluid acting on a diaphragm
F16K 7/17 - Diaphragm cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being actuated by fluid pressure
In some examples, a pressure regulating valve comprising a pressure chamber, a compressor configured to establish fluid communication with the pressure chamber, a vent valve configured to establish fluid communication with the pressure chamber, a pressure sensor, and a controller. The controller may determine a pressure based on the signal generated by the pressure sensor, and compare a pressure setpoint and the pressure. The controller may be configured to alter the pressure in the pressure chamber based on the comparison between the pressure setpoint and the pressure. For example, the controller may control the compressor to increase the pressure in the pressure chamber and/or control the vent vale to decrease the pressure in the pressure chamber. The altered pressure of the pressure chamber may generate movement of a restricting element within the pressure regulating valve.
G05D 16/20 - Control of fluid pressure characterised by the use of electric means
F16K 17/04 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side spring-loaded
Flow modulator (10) for a fluid like combustion gas, comprising: a housing (11), a modulator body (14) positioned with the housing (11), and a valve body (18) positioned with the housing (11). The modulator body (14) has a flow channel (15) and an opening (16) providing together a flow passage (17) for the fluid. The valve body (18) is provided by a foil element (19), wherein the foil element (19) has an opening (20) for the fluid, wherein the foil element (19) is rotatable relative to the modulator body (14) to modulate the flow of the fluid by adjusting an overlap between the opening (20) of the valve body (18) and the flow passage (17) of the modulator body (14), and wherein the foil element (19) is positioned up-stream of the modulator body (14) such that an inlet pressure of the fluid presses the foil element (19) against the modulator body (14) thereby providing a sealing level between the foil element (19) and the modulator body (14).
A device for handling combustion gas comprises: a housing, a first electronic element, a second electronic element, a connecting element, and a sealing element. The housing defines a gas chamber for the combustion gas and an ambient chamber for ambient air. The first electronic element is positioned within the gas chamber and is exposed to the combustion gas. The second electronic element is positioned within the ambient chamber and is not exposed to the combustion gas but is exposed to the ambient air. The connecting element electrically connects the first electronic element and the second electronic element. The sealing element is made at least partially from an elastomer, and is compressed between the connecting element and the housing, and seals the gas chamber against the ambient chamber even if electrically insulating material of the connecting element or the connecting element is removed.
Pressure reducer (10) having a housing (11) with a valve (12) positioned in said housing (11), wherein in closed position the valve (12) separates an inlet pressure chamber (13) of the housing (11) from an outlet pressure chamber (14) of the housing (11), and in open position connects the inlet pressure chamber (13) and the outlet pressure chamber (14), wherein the valve (12) has a diaphragm (16) acting on a valve tappet (15), on which diaphragm, by providing a pressure reducing function, a spring force of a spring element (17) acting in the opening direction of the valve (12) acts on the one hand and a force that is a function of the pressure prevailing in the outlet pressure chamber (14) acting in the closing direction of the valve (12) acts on the other hand, wherein the valve (12) has, attached to the valve tappet (15), a valve body (21) which, in closed position, bears against a valve seat (22) in a sealing manner and which in open position is raised off the valve seat (22), and wherein the spring element (17) is arranged between spring plates (18, 19), namely between a spring plate (18) facing the diaphragm (16) and a spring plate (19) facing away from the diaphragm (16). A sensor (27) for detecting leakage is integrated into the pressure reducer.
F16K 17/196 - Equalising valves predominantly for tanks spring-loaded
F16K 17/04 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side spring-loaded
G05D 7/06 - Control of flow characterised by the use of electric means
G05D 16/06 - Control of fluid pressure without auxiliary power the sensing element being a flexible member yielding to pressure, e.g. diaphragm, bellows, capsule
59.
Assembly for measuring a leakage in a drinking water supply system, and pressure reducer
Assembly (10) for measuring a leakage in a drinking water supply system, with a backflow preventer (12), wherein the backflow preventer (12) is opened if there is a pressure drop caused by drinking water consumption downstream of the backflow preventer (12) as viewed in a flow direction of the drinking water, and wherein the backflow preventer (12) is closed if there is no pressure drop caused by drinking water consumption downstream of the backflow preventer (12), as viewed in the flow direction of the drinking water, with a volume flow meter (13) connected in parallel to the backflow preventer (12) and via which, if the backflow preventer (12) is closed, a leakage flow of drinking water caused by a leakage in the drinking water supply system downstream of the backflow preventer (12) can be routed, wherein the volume flow meter (13) is integrated into a bypass (14) to the backflow preventer (12).
E03B 7/07 - Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
G01M 3/28 - Investigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables, or tubesInvestigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipe joints or sealsInvestigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for valves
Method for operating a gas burner, wherein a gas/combustion air mixture is fed to the gas burner for combusting in said gas burner in such a way that a combustion air flow, which is inducted by a fan, is mixed with a gas flow and the resulting gas/combustion air mixture is fed to the gas burner, wherein to this end a control device, on the basis of a control deviation between an actual value, which is recorded by a sensor providing an electrical or electronic measurement signal and acting on a gas line which carries the gas flow, and a corresponding reference value, determines a manipulated variable for a gas valve which influences the gas flow, wherein the gas valve is adjusted in dependence upon this manipulated variable in order to make available to the gas burner the gas/combustion air mixture with a desired gas/combustion air ratio, and wherein the control device alters the gas/combustion air ratio of the gas/combustion air mixture in dependence upon a rotational speed of the fan in such a way that at relatively low rotational speeds of the fan in comparison to relatively high rotational speeds of the fan the gas proportion is reduced in relation to the air proportion so that the gas/combustion air ratio becomes leaner in gas.
An approach which may be regarded as a company advanced programming interface (CAPI) applicable, for instance, to boiler displays and remote man-machine interfaces. CAPI may use a product software structure combined with a personal computer (PC) or web based program capable of creating an embedded microcontroller program without a need for programming capabilities or a program recompile. Implementation may be done at both the product microcontroller level and the PC or web based program to be used by an end customer to “customize” its product. The present approach may partially move development and final tuning processes to an original equipment manufacturers (OEM). Modifications of the product may be done without a need for specific and expensive software development tools for embedded devices such as a compiler and a debugger, and hardware tools for simulation and analysis, and other like items. The present approach may also provide immediate response to simple OEM requirements.
G06F 9/44 - Arrangements for executing specific programs
G06F 9/45 - Compilation or interpretation of high level programme languages
G06F 3/00 - Input arrangements for transferring data to be processed into a form capable of being handled by the computerOutput arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
62.
Method for operating a valve having a stepper motor as actuator
The invention relates to a gas regulating unit with a valve basic body (11) which forms at least one gas inlet chamber and one gas outlet chamber, with a safety valve and with a main gas valve, wherein the safety valve and the main gas valve either open or close a gas flow from the gas inlet chamber into the gas outlet chamber. According to the invention, the valve basic body (11) comprises at least three parts, namely at least one plastic core (12), which defines the gas inlet chamber and the gas outlet chamber, and at least two metallic shells (13, 14), wherein a first metallic shell (13) encloses the plastic core (12) at least in sections on an upper side, and wherein a second metallic shell (14) encloses the plastic core (12) at least in sections on an underside, and wherein at least one diaphragm (15) is positioned between one of said metallic shells (14) and the plastic core (12), which at least one diaphragm (15) delimits in each case a drive chamber, in which a servopressure prevails, for the safety valve and/or the main gas valve.
Regulating device for gas burners for providing a gas/air mixture, with a mixing device for mixing a gas flow with a combustion air flow to provide the gas/air mixture, wherein at least one gas valve is positioned in a gas line which conducts the gas flow, which is adjusted in dependence upon a measurement signal of an electric or electronic sensor, wherein the sensor determines the differential pressure between the gas line and a reference pressure. The mixing device may be formed as a Venturi nozzle, in which the gas flow and the combustion air flow are mixed, wherein the reference pressure for the sensor is a device in which the reference pressure prevails, and the device is connected via a connecting line to the Venturi nozzle downstream of the mixing region of the Venturi nozzle.
09 - Scientific and electric apparatus and instruments
Goods & Services
Electrical and electronic apparatus and instruments for signalization, building services and building communication, electro-optical and electromechanical apparatus and instruments, the aforesaid goods as far as included in class 9, especially apparatus and instruments for signaling and warning; telephones, telecommunication apparatus, door chimes, doorbells, signal bells, alarm bells, electronic sounders, horns, sirens ,buzzers, switches, push buttons; warning lamps; transformers, solarcells, batteries, printed circuit boards, wires and fuses; electrical and electronic protection devices and instruments for all the aforesaid goods; parts for all the aforesaid goods.
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
42 - Scientific, technological and industrial services, research and design
Goods & Services
Electrical, electronic, electro-optical and electromechanical apparatus and instruments, all for communication, alerting, signalling, and warning; telephone and intercommunication apparatus; alarm apparatus; door chimes, door bells, signal bells, alarm bells, electronic sounders, sirens and buzzers; switches and push buttons; lamps being warning appliances and apparatus; transformers, solar cells, and batteries; wireless alarm apparatus; radio alarm apparatus; radio transmitters and receivers; door entry systems; video door entry systems; audio door entry systems; remotely controlled door entry systems; cameras, image processing systems and visual displays for door entry systems; microphones, audio amplifiers, and loudspeakers, all for door entry systems; ultra-sonic and infra-red detectors; printed circuit boards, cable, wire and fuses, all being electrical; electrical and electronic apparatus and instruments, weatherproof enclosures, grommets and seals all for the protection of the aforesaid goods against mechanical, electrical, or electromagnetic interference; mounting brackets for the aforesaid goods; mains adapters and electric wires; parts and fittings for all the aforesaid goods. Light bulbs and light fittings; illuminated panels; electric push buttons and electric switches, all being luminous; parts and fittings for all the aforesaid goods. Design of alarm alerting, signalling and warning systems; information, advisory and consultancy services relating to the aforesaid.
