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Heat pump type air conditioner for automotive vehicle

  • US 5,355,689 A
  • Filed: 05/25/1993
  • Issued: 10/18/1994
  • Est. Priority Date: 05/25/1992
  • Status: Expired due to Term
First Claim
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1. A heat pump type air conditioner for an automotive vehicle, comprising:

  • refrigerant;

    a compressor applying a workload to said refrigerant;

    a condenser connected to a refrigerant discharge side of said compressor and radiating heat of said refrigerant into ambient air;

    a blower leading air for air-conditioning the passenger compartment of the automotive vehicle;

    a heat-radiating inner heat exchanger connected to the refrigerant discharge side of said compressor and transmitting the heat of said refrigerant to the air led by said blower;

    an expansion valve connected to a refrigerant outlet side of said heat-radiating inner heat exchanger;

    an evaporator connected to a refrigerant outlet side of said expansion valve, said evaporator transmitting the heat of the air led by said blower to said refrigerant which is supplied through said expansion valve from at least one of said condenser and said heat-radiating inner heat exchanger;

    a switching device disposed among the refrigerant discharge side of said compressor, said switching device being set at one of a first state in that said compressor is fluidly communicated with said condenser and a second state in that said compressor is fluidly communicated with said heat-radiating inner heat exchanger; and

    means for lowering a cooling efficiency of said evaporator for a predetermined time when said compressor is started.

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