A heat-pump-type vehicular air-conditioning system, wherein a cooling refrigerant circuit constituting a base is provided with a first circuit for connecting an onboard condenser provided on the downstream side of an onboard evaporator inside an HVAC unit, the first circuit having a second decompression unit between the outlet side of a receiver and one end side of a vehicle-mounted external heat exchanger; and a second circuit having a solenoid valve opened during heating between the other end side of the vehicle-mounted external heat exchanger and the intake circuit of an electric compressor; the vehicular air-conditioning system being provided with a heating refrigerant circuit in which the electric compressor, a switching unit, the onboard condenser, the receiver, the first circuit provided with the second decompression unit, the vehicle-mounted external heat exchanger, and the second circuit provided with the solenoid valve are connected in the stated order.
HEAT-PUMP-TYPE VEHICULAR AIR-CONDITIONING SYSTEM
2016-02-25
Patent
Electronic Resource
English
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 |
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