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公开(公告)号：US20240361057A1
公开(公告)日：2024-10-31
申请号：US18329032
申请日：2023-06-05
申请人： Atieva, Inc.
IPC分类号： F25B49/02
CPC分类号： F25B49/022 , F25B2600/025 , F25B2600/11
摘要： A method of controlling vapor compression cooling in a thermal system comprises: changing, using a controller and according to a first function, a first operating parameter of a first actuator of the thermal system, the first function defined by performing fitting to data, the first actuator controlling one of a speed of a fan of a condenser or a speed of a compressor; and changing, using the controller, a second operating parameter of a second actuator of the thermal system, the second actuator controlling another of the speed of the fan of the condenser or the speed of the compressor, the second operating parameter changed according to a second function that at least in part depends on a capacity request for the vapor compression cooling.
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公开(公告)号：US20240359527A1
公开(公告)日：2024-10-31
申请号：US18768320
申请日：2024-07-10
申请人： Dometic Sweden AB
CPC分类号： B60H1/00378 , B60H1/00428 , B60H1/00521 , B60H1/00542 , B60H1/00985 , B60H2001/00235 , B60H1/3226 , B60H2001/3255 , B60H2001/3272 , B60H2001/3277 , B60H2001/3282 , F25B49/02 , F25B49/022 , Y02T10/88
摘要： A parking cooler which is capable of battery powered operation during engine off operation. The parking cooler or air conditioning system may vary in cooling capacities to maximize cooling or maximize battery life. The parking cooler includes one or more additional cooling mechanicals within either of two housings to accommodate variation of cooling capacity.
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公开(公告)号：US12130060B1
公开(公告)日：2024-10-29
申请号：US17809673
申请日：2022-06-29
CPC分类号： F25B41/20 , F25B49/02 , F25B2400/0401 , F25B2400/0409 , F25B2600/2501 , F25B2700/2117
摘要： A vapor compression system control implementations that maintain surface temperature uniformity of at least one cold plate throughout pulsed thermal loads from a minimal or zero load state suddenly to a high or 100% of design capacity state where the heat pulse occurrence, frequency, and durations are not known a priori. Vapor compression system control implementations that maintain surface temperature uniformity of at least one cold plate throughout pulsed thermal loads from a minimal or zero load state suddenly to a high or 100% of design capacity state where the heat pulse occurrence, frequency, and durations are not known a priori. Rapid thermal pulse applications require a robust control strategy of the cold plate assembly to maintain cold plate surface temperature uniformity. In one implementation, a control system for the cold plate assembly that maintains a uniform cold plate temperature given controlled supply and suction conditions is contemplated.
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公开(公告)号：US20240353159A1
公开(公告)日：2024-10-24
申请号：US18304828
申请日：2023-04-21
CPC分类号： F25B45/00 , F25B30/02 , F25B41/20 , F25B49/02 , F25B2600/05
摘要： A receiver assembly for a heat pump system is provided including a first receiver volume and a second receiver volume. The first receiver volume is configured to accommodate an amount of refrigerant based on a difference between a refrigerant charge for cooling operations of the heat pump system and a refrigerant charge for heating operations of the heat pump system. The second receiver volume has a first fluid connection configured to receive a hot gas injection and a second fluid connection. An expander is disposed along the second fluid connection. The receiver assembly further includes a fluid line configured to connect the first receiver volume and the second receiver volume and a controllable valve configured to regulate flow between the first receiver volume and the second receiver volume disposed along the fluid line.
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5.发明公开公开(公告)号：US20240353158A1
公开(公告)日：2024-10-24
申请号：US18574909
申请日：2022-05-26
发明人： Hao PAN , Dan XIONG , Xiaoliang TANG , Jun YOU , Qiang KANG , Xiaofei SONG
CPC分类号： F25B41/20 , F25B47/02 , F25B49/022 , F25B2400/23 , F25B2600/2501
摘要： A hot water system with transcritical carbon dioxide single-stage or double-stage compression and a control method therefor is provided. The hot water system includes a first-stage compressor, a first heat exchanger for exchanging heat with cooling water on user side, a second-stage compressor, a second heat exchanger for exchanging heat with the cooling water on user side, a third heat exchanger for exchanging heat between a liquid phase refrigerant and a gas phase refrigerant, an expansion valve, a fourth heat exchanger for exchanging heat with ambient air, a buffer water tank, a first proportional valve, a second proportional valve, a third proportional valve, a fourth proportional valve, a defrosting valve, and a refrigerant circuit bypass valve. The hot water system can switch between the single-stage compression ad the double-stage compression in high-temperature and low-temperature weather, ensuring that the system has good heating capacity and energy efficiency ratio.
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公开(公告)号：US20240344748A1
公开(公告)日：2024-10-17
申请号：US18632612
申请日：2024-04-11
申请人： Carrier Corporation
发明人： Sascha Hellman
CPC分类号： F25B49/025 , F25B47/02 , F25B2500/12 , F25B2600/112
摘要： A system and method for operating a plurality of evaporator units is disclosed. The method includes receiving, by a controller communicably coupled to each evaporator unit, a current state of operation of the respective evaporator unit. A state of operation of each evaporator unit includes first and second modes of operation. The method includes receiving, by the controller, a current speed of a fan of the respective evaporator unit. Responsive to the state of operation of the plurality of evaporator units, the method further includes operating, by the controller, each of the plurality of evaporator units, to change the speed of the respective fans from a first speed to a speed different from the first speed. Operation of the fans of the plurality of evaporator units at the speed different from the first speed enables the plurality of evaporator units to operate within a desirable range of cooling efficiency.
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公开(公告)号：US12117222B2
公开(公告)日：2024-10-15
申请号：US17334295
申请日：2021-05-28
发明人： Thibaut Gerson
CPC分类号： F25B9/002 , F25B1/047 , F25B31/004 , F25B39/02 , F25B40/06 , F25B43/02 , F25B49/02 , F25B2339/0242 , F25B2400/121 , F25B2500/16 , F25B2700/21151
摘要： Systems and methods for lubricant management of a compressor in an HVACR system are disclosed. A heat transfer circuit can utilize a working fluid to provide heating or cooling includes a compressor for compressing the working fluid and a heat source configured to increase a suction temperature of the working fluid entering the compressor. One or more lubricant rheological properties in a compressor system based on measurements taken at or near a bearing cavity of the compressor are determinable. A lubricant reservoir can be in thermal communication with a discharge flow path of the compressor. An internal heat exchanger can be disposed within a compressor for improving viscosity of the lubricant to be cycled back into the compressor. A heater can be located on a fluid line between a lubricant separator and a lubricant inlet. Condenser fans can be controlled.
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公开(公告)号：US12110890B2
公开(公告)日：2024-10-08
申请号：US17485775
申请日：2021-09-27
IPC分类号： F25B49/02 , F04C18/356 , F04C28/26
CPC分类号： F04C18/356 , F04C28/26 , F25B49/02 , F25B2500/18 , F25B2500/26 , F25B2600/0261
摘要： A rotary compressor and a refrigeration cycle device are provided. The rotary compressor includes a housing, an exhaust pipe and a suction pipe. The housing accommodates a motor and a compression mechanism. The exhaust pipe is communicated with a high-pressure side of the refrigeration cycle device and coupled to the housing. The suction pipe is communicated with a low-pressure side of the refrigeration cycle device and coupled to the compression mechanism. The compression mechanism has a bypass device. When the motor is stopped, gas of the housing flows into the suction pipe or a low-pressure circuit communicated with the suction pipe.
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公开(公告)号：US12109870B2
公开(公告)日：2024-10-08
申请号：US17286061
申请日：2019-09-03
发明人： Adrian Zimmermann , Walter Zipp , Jörg Kirchhof , Andreas Inhoff
CPC分类号： B60H1/323 , B60H1/00485 , B60H1/2218 , B60H1/3211 , F25B6/02 , F25B6/04 , F25B49/027 , B60H2001/3251 , F25B5/02 , F25B2500/12 , F25B2600/17 , F25B2700/195
摘要： A refrigerant circuit, which can be used in a vehicle or motor vehicle, includes an air conditioning compressor, a main condenser, at least one connectable condenser, and a switching valve. The switching valve can connect one or more of the switchable condensers to the refrigerant circuit. The circuit may also include a pressure equalizing device with an electric heater that can equalize an internal pressure of the at least one connectable condenser with an internal pressure of the main condenser.
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公开(公告)号：US20240328695A1
公开(公告)日：2024-10-03
申请号：US18295142
申请日：2023-04-03
IPC分类号： F25B49/02
CPC分类号： F25B49/022 , F25B2600/11 , F25B2600/2513 , F25B2700/171 , F25B2700/19 , F25B2700/21
摘要： The present disclosure discloses a system and a method for controlling an operation of a vapor compression cycle based on a hybrid model of dynamics of the vapor compression cycle including a physics-based model and a data driven model. The method comprises executing a constrained Kalman smoother over the observed variables collected over multiple instances of time to jointly estimate the parameters of the physics-based model and states of the vapor compression cycle, and updating the data driven model to minimize a difference between the states estimated by executing the constrained Kalman smoother and the states predicted by the physics-based model. The method further comprises updating the hybrid model with the estimated parameters of the physics-based model and the updated data driven model, and controlling the operation of the vapor compression cycle using the updated hybrid model.
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