1. Compression process

The car air conditioning compressor sucks in low-temperature and low-pressure gas at the evaporator inlet, and then compresses it into high-temperature and high-pressure gas to be discharged from the compressor.

2. Heat dissipation process

After the high-temperature and high-pressure refrigerant gas enters the car air conditioning condenser, it condenses into a liquid and emits a large amount of heat.

3. Throttling process

4. Endothermic process

After the foggy refrigerant liquid enters the evaporator of the car air conditioner, it absorbs a large amount of surrounding heat, and then the low-temperature and low-pressure refrigerant vapor enters the compressor again. In the process of working on the principle of automotive air conditioning, it is carried out repeatedly to achieve the goal of reducing the temperature of the air around the evaporator.