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Dual evaporator air conditioning system and method of use

  • US 6,983,793 B2
  • Filed: 11/19/2002
  • Issued: 01/10/2006
  • Est. Priority Date: 11/19/2002
  • Status: Expired due to Term
First Claim
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1. A dual evaporator air conditioning system for use with a refrigerant for cooling air, said system comprising:

  • a compressor for compressing and circulating the refrigerant;

    a primary air conditioning unit operable between cooling and non-cooling modes having a primary evaporator in fluid communication with said compressor for transferring heat from the air to the refrigerant to cool the air when in said cooling mode;

    an auxiliary air conditioning unit operable between cooling and non-cooling modes having an auxiliary evaporator m fluid communication with said compressor for transferring heat from the air to the refrigerant to cool the air when in said cooling mode; and

    a heater proximate said auxiliary evaporator and further including means for automatically heating the refrigerant in said auxiliary when said auxiliary air conditioning unit is in said non-cooling mode while said primary air conditioning unit is in said cooling mode to prevent accumulation of the refrigerant in said auxiliary evaporator.

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