The invention relates to a vapor injection heat pump system and controls. A vehicle HVAC system includes a compressor, a first heat exchanger for exchanging heat between the refrigerant outside air, a first check valve set, a first expansion device for decompressing a first portion of the refrigerant, a second heat exchanger for exchanging heat between the first portion of the refrigerant and a second portion of the refrigerant, a second expansion device for decompressing the second portion of the refrigerant, a second check valve set, a third heat exchanger for exchanging heat between the refrigerant and inside air, and a selector valve for switching between a heating mode and a cooling mode. The first check valve set and the second check valve set together maintain a constant flow direction through the first expansion device, the second heat exchanger, and the second expansion device between the heating mode and the cooling mode.

    本公开提供了“蒸气喷射热泵系统和控制”。一种车辆HVAC系统包括压缩机、用于在制冷剂与外部空气之间交换热量的第一热交换器、第一止回阀组、用于使所述制冷剂的第一部分减压的第一膨胀装置、用于在所述制冷剂的所述第一部分与所述制冷剂的第二部分之间交换热量的第二热交换器、用于使所述制冷剂的所述第二部分减压的第二膨胀装置、第二止回阀组、用于在所述制冷剂与内部空气之间交换热量的第三热交换器以及用于在加热模式与冷却模式之间切换的选择阀。所述第一止回阀组和所述第二止回阀组一起在所述加热模式与所述冷却模式之间维持通过所述第一膨胀装置、所述第二热交换器和所述第二膨胀装置的恒定流动方向。


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    Title :

    VAPOR INJECTION HEAT PUMP SYSTEM AND CONTROLS


    Additional title:

    蒸气喷射热泵系统和控制


    Contributors:

    Publication date :

    2021-06-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS



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