How does automotive air conditioning work?
The principle of operation is similar to ordinary conditioning devices, with the exception of the compressor which is driven by the vehicle engine. The condenser is forced convection, where a separate fan or the radiator fan is used, in which case the condenser is installed in front of the radiator. Air movement inside the vehicle is performed by a centrifugal fan coupled to the electric motor. As the compressor operates within the operating characteristics of the automobile engine, a suction regulating valve is installed in the return tube. The components of an automotive conditioning system are: compressor, condenser, evaporator, fan motor, thermostatic expansion valve, liquid reservoir, filter, magnetic switch and thermostat.