REFRIGERANT CIRCUIT FOR A VEHICLE-AIR CONDITIONING SYSTEM WITH HEAT PUMP FUNCTION

摘要

The present invention relates to a refrigerant circulation system (1) of a vehicle air conditioning system (2) having a heat pump function, comprising at least one evaporator (3), a compressor (5), a condenser (6) and an expansion member , And the refrigerant circulation system is characterized in that an additional evaporator (9) of another fluid guiding device (8) is arranged in front of the compressor (5) in the refrigerant circulation system (1). The present invention also relates to a method of operating a refrigerant circulation system.