The present invention relates to apparatuses (1a, 1b, 1c) for vehicle air conditioning systems. The apparatuses (1a, 1b, 1c) include at least one first refrigerant circulation system (2a, 2c) and a second refrigerant circulation system (3). The refrigerant circulation systems are thermally connected to each other through a first refrigerant-refrigerant heat exchanger (18) for heat transfer from the refrigerant in the second refrigerant circulation system (3) to the refrigerant in the first refrigerant circulation systems(2a and 2c) and through a second refrigerant-refrigerant heat exchanger (23) for heat transfer from the refrigerant in the first refrigerant circulation system (2a, 2c) to the refrigerant in the second refrigerant circulation system (3). The first refrigerant circulation system (2a, 2c) has, in a flow direction of the refrigerant, a compressor (4), the second refrigerant-refrigerant heat exchanger (23), the first refrigerant-refrigerant heat exchanger (18), and a heat exchanger (20) capable of operating as an evaporator. In this case, a first expansion member (17) is provided in front of the first refrigerant-refrigerant heat exchanger (18) and a second expansion member (19) is provided in front of the heat exchanger (20). The second refrigerant circulation system (3) has, in the flow direction of the refrigerant, a compressor (25), the first refrigerant-refrigerant heat exchanger (18), one or more expansion members (33, 34) and the second refrigerant-refrigerant heat exchanger (23). The invention also relates to a method of operating the device.


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    Title :

    Vorrichtung für ein Klimatisierungssystem eines Kraftfahrzeugs sowie Verfahren zum Betreiben der Vorrichtung


    Contributors:

    Publication date :

    2019-11-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    German


    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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