Air conditioning plant for car

摘要

The air conditioning plant for a car uses a heat pump. The cooler and heater use air as the heat-carrying medium. A compressor 91) has its inlet open to the atmosphere while its pressure side is connected through a heat exchanger(12) to the input side of an expander (2) where the compressed air expands and escapes, at the same time doing mechanical work. Both inlet (9) and outlet(14) communicate either directly or indirectly with the car cabin. The waste heat of the exchanger is used for heating purposes. Both the compressor and expander are piston machines, with cylinders in a Vee and the pistons coupled to a common crankshaft. Alternatively, the Wankel concept can be used.