Heat exchange – With vehicle feature – Heating and cooling
Patent
1983-05-11
1985-06-18
Tapolcai, William E.
Heat exchange
With vehicle feature
Heating and cooling
622383, 623232, B60H 300
Patent
active
045236313
ABSTRACT:
A combined automotive vehicle heating and cooling system utilizes the existing heating coil and blower inside of the passenger compartment and utilizes the engine coolant circulated by the existing engine driven coolant pump in both the heating and air conditioning modes. An absorption refrigeration system external to the passenger compartment utilizes waste heat from the engine coolant normally dissipated by the engine coolant system radiator. The same coolant pump circulates hot engine coolant through a generator of the absorption refrigeration system to provide energy for the refrigeration cycle without the necessity for a compressor and associated devices. Engine loading by the refrigeration system is substantially eliminated. The refrigeration system operates adequately to provide air conditioning even at slow engine idling. In a separate circuit, a low energy pump circulates coolant through a refrigerant evaporator and then through the existing coil in the passenger compartment adjacent to the existing blower.
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