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公开(公告)号：US11573038B2
公开(公告)日：2023-02-07
申请号：US17376392
申请日：2021-07-15
发明人： Der-Kai Hung
摘要： A system comprising a compressor, a first valve coupled to the compressor and coupled to a first coil, a first expansion valve coupled to the first coil, a second coil, and a second expansion valve. The second expansion valve coupled to a third coil, a second valve coupled to the compressor and the third coil. A controller operable to operate the first valve, the first expansion valve, the second expansion valve, and the second valve. The second coil is coupled to the compressor and the refrigerant flows from the second coil to the compressor.
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公开(公告)号：US20220404068A1
公开(公告)日：2022-12-22
申请号：US17778950
申请日：2020-11-11
申请人： BSH Hausgeraete GmbH
发明人： Andreas Babucke , Oliver Janda , Niels Liengaard , Clemens Mack , Matthias Mrzyglod , Vitali Ulrich , Carsten Weiss
摘要： A refrigeration appliance with multiple storage compartments has a refrigerant circuit with a first expansion valve, a first heat exchanger, a second expansion valve, and a second heat exchanger connected in series between pressure and suction connections of a compressor. Each heat exchanger is associated with at least one storage compartment in order to control its temperature. A control unit controls the compressor rotational speed and positions of the expansion valves. The control unit has a continuously linear regulator for each storage compartment with a P-component for estimating a required temperature control output using a difference between actual and target temperatures. A model computing unit ascertains a target evaporation temperature for a first storage compartment controlled by the first heat exchanger, and for a second storage compartment controlled by the second heat exchanger. The heat exchangers are operated by selecting the compressor rotational speed and the valve positions of the expansion valves.
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公开(公告)号：US11512877B2
公开(公告)日：2022-11-29
申请号：US17272497
申请日：2019-08-26
申请人： ARKEMA FRANCE
发明人： Wissam Rached
摘要： A process for conditioning air, by means of a main circuit, the main circuit being a vapor compression circuit, wherein a first refrigerant circulates, and a secondary circuit with no compressor, wherein a non-flammable second refrigerant including a hydrofluoroolefin and/or a hydrochlorofluoroolefin circulates, the main circuit and the secondary circuit being coupled to one another; the process including a heat exchange between the surroundings and the first refrigerant, a heat exchange between the first and second refrigerants, and a heat exchange between the second refrigerant and the air to be conditioned. Also, an air conditioning plant for implementing the process.
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公开(公告)号：US11480369B2
公开(公告)日：2022-10-25
申请号：US16479603
申请日：2017-12-28
发明人： Lei Zhang , Chunhui Liu
摘要： A fresh-air air conditioning system comprises: a first electromagnetic valve connected to a first interior heat exchanger, and the first electromagnetic valve is connected via a first accumulator to a compressor and a third electromagnetic valve; the third electromagnetic valve is connected via a second accumulator to the compressor and a second electromagnetic valve; and the second electromagnetic valve is connected to a second interior heat exchanger. When the first interior heat exchanger or the second interior heat exchanger is closed, the third electromagnetic valve opens so that the first accumulator and the second accumulator simultaneously communicate with the open one of the first interior heat exchanger or the second interior heat exchanger, avoiding poor oil return as a result of prolonged single-cylinder operation of the compressor, and ensuring the reliability of the compressor as well as interior comfort.
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公开(公告)号：US11415347B2
公开(公告)日：2022-08-16
申请号：US16679662
申请日：2019-11-11
摘要： A compressor system includes a first compressor and a second compressor. A suction equalization line fluidly couples the first compressor and the second compressor. A first branch suction line is fluidly coupled to the first compressor and a second branch suction line is fluidly coupled to the second compressor. A main suction line is fluidly coupled to the first branch suction line and the second branch suction line. An obstruction device is disposed in at least one of the first branch suction line and the second branch suction line. Responsive to deactivation of at least one of the first compressor and the second compressor, the obstruction device is at least partially closed thereby causing prescribed liquid levels in the first compressor and the second compressor during partial-load operation.
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公开(公告)号：US11268746B2
公开(公告)日：2022-03-08
申请号：US16716834
申请日：2019-12-17
发明人： Shitong Zha
摘要： A cooling system is provided that partially floods one of its freezers (e.g., the ice cream freezer) such that the refrigerant discharged by the freezer includes a liquid component. In this manner, the freezers in the system can operate at the same saturated suction temperature. A heat exchanger can be used to transfer heat to the liquid component of the discharge to evaporate the liquid component.
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公开(公告)号：US20220003467A1
公开(公告)日：2022-01-06
申请号：US17292543
申请日：2019-01-16
IPC分类号： F25B41/42 , F25B5/00 , F25B13/00 , F25B41/20 , F24F1/0063
摘要： An air-conditioning apparatus includes a load-side heat exchanger including a first heat exchanger disposed on a windward of a second heat exchanger in a direction of an air flow generated by an air-sending device. The air flow passing through the first heat exchanger passes through a second heat exchanger. During cooling operation, a bypass valve causes a part of refrigerant flowing through a first refrigerant pipe to flow through a coupling pipe through a bypass pipe. During heating operation, the bypass valve blocks a flow of the refrigerant flowing from the coupling pipe toward the first refrigerant pipe through the bypass pipe, and causes all of the refrigerant flowing through the coupling pipe to flow from the coupling pipe to the first heat exchanger.
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公开(公告)号：US11092376B2
公开(公告)日：2021-08-17
申请号：US16075814
申请日：2017-01-31
申请人： BSH HAUSGERAETE GMBH
发明人： Andreas Babucke , Niels Liengaard
IPC分类号： F25D11/02 , F25D13/02 , F25B5/02 , F25B5/04 , F25B40/00 , F25B5/00 , F25B49/02 , F25B41/39 , F25B41/385
摘要： A refrigeration device has a first storage chamber, a second storage chamber and a refrigerant circuit, in which a first controllable throttle point, a first heat exchanger for controlling the temperature of the first storage chamber, a second controllable throttle point and a second heat exchanger for cooling the second storage chamber are connected in series between a pressure connection and a suction connection. A hot line section, located upstream of the second heat exchanger, and a cold line section, located downstream of the second heat exchanger, are routed in thermal contact with respect to one another in order to form an internal heat exchanger. The first heat exchanger is connected to the pressure connection bypassing the hot line section.
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公开(公告)号：US20210180851A1
公开(公告)日：2021-06-17
申请号：US16716834
申请日：2019-12-17
发明人： Shitong Zha
摘要： A cooling system is provided that partially floods one of its freezers (e.g., the ice cream freezer) such that the refrigerant discharged by the freezer includes a liquid component. In this manner, the freezers in the system can operate at the same saturated suction temperature. A heat exchanger can be used to transfer heat to the liquid component of the discharge to evaporate the liquid component.
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公开(公告)号：US20210140693A1
公开(公告)日：2021-05-13
申请号：US17156353
申请日：2021-01-22
发明人： Der-Kai Hung
摘要： A system comprising a compressor, a first valve coupled to the compressor and to a first coil, a first expansion valve coupled to the first coil, and a second expansion valve. The second expansion valve coupled to a second coil. A second valve is coupled to the second coil and the compressor. A third valve is coupled to the compressor and a third coil. In response to receiving a heating demand that is below a threshold heating demand, a controller induces an artificial heating demand.
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