Compressor, one of the main parts of the A/C system, generally is triggered by belt, pulley mechanism of the engine shaft in vehicles. When the A/C system operates, the compressor liquefies the fluid gas transmitting it to the condenser at high pressure and temperature. The compressor is necessary to absorb the cooling gas disseminated from the evaporator in gas form with low pressure, liquefy it with pistons and transfer it to the condenser with increased heat and pressure. The input to the compressor occurs in the gas phase, the heat of the gas entering at low temperature with low-pressure increases with the increase in cooling liquid pressure and it disseminates the compressor in gas form again. If the A/C system cooler pressure is not increased by its compression in compressor, conversion from gas form to liquid is not possible in the condenser and cooling process cannot occur due to lack of heat absorption in evaporator.
