Refrigeration – With alternately usable energy sources
Patent
1989-06-05
1990-08-14
King, Lloyd L.
Refrigeration
With alternately usable energy sources
F25B 2700
Patent
active
049476572
ABSTRACT:
An auxiliary air conditioning system is provided for vehicles having a primary air conditioning system. The vehicle's primary air conditioning system includes a primary compressor powered by the vehicle engine through a suitable mechanical linkage, a primary condenser, a primary evaporator and blower, and a cooled air distribution system. A preferred auxiliary air conditioning system, according to the invention, is incorporated into the primary air conditioning system and adapted to provide refrigerated air conditioning when the primary compressor and vehicle engine are not operating. One preferred auxiliary air conditioning apparatus includes an auxiliary compressor powered by an auxiliary compressor electric motor, and an auxiliary condenser and electric powered condenser fan. The auxiliary compressor is connected for receiving evaporated refrigerant from the primary evaporator, compressing the refrigerant, and delivering the compressed refrigerant to the auxiliary condenser for condensing. A control system prevents the operation of the auxilary compressor when the vehicle engine is on. The auxiliary condenser is connected to deliver condensed refrigerant to the primary evaporator where the refrigerant is evaporated to provide cool air to be distributed similarly to the primary air conditioning system. In alternate forms of the invention, the auxiliary air conditioning system may be a complete separate system including an auxiliary evaporator and blower that is separated from the auxiliary compressor and condenser. The separated auxiliary air conditioning components are positioned on or inside the vehicle so as not to affect the vehicle aerodynamics and vehicle height.
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Culbertson Russell D.
King Lloyd L.
Shaffer, Jr. J. Nevin
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