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Automotive air conditioning system

  • US 4,991,405 A
  • Filed: 08/10/1990
  • Issued: 02/12/1991
  • Est. Priority Date: 07/29/1988
  • Status: Expired due to Fees
First Claim
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1. An air conditioning system for controlling the temperature of a vehicle passenger compartment, said air conditioning system comprising:

  • a first heat exchanger comprising an evaporator;

    a second heat exchanger comprising a condensor;

    first duct means for conducting air from said first heat exchanger to said vehicle passenger compartment;

    second duct means for conducting air from said vehicle passenger compartment to said second heat exchanger;

    third duct means for conducting air from outside said vehicle passenger compartment to said second heat exchanger; and

    means for selectively opening and closing said first, said second and said third duct means.

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