What is the function of an automotive air conditioning compressor?
2 Answers
Automotive air conditioning compressor is the heart of the car's air conditioning refrigeration system, playing the role of compressing and transporting refrigerant vapor. According to different working principles, air conditioning compressors can be divided into the following two types: 1. Fixed displacement compressor. The exhaust volume of a fixed displacement compressor increases proportionally with the increase of engine speed. It cannot automatically change power output according to cooling demand and has a relatively large impact on engine fuel consumption. 2. Variable displacement air conditioning compressor. A variable displacement compressor can automatically adjust power output based on the set temperature. The air conditioning control system does not collect temperature signals from the evaporator outlet but controls the compressor's compression ratio based on pressure change signals in the air conditioning pipeline to automatically adjust the outlet temperature.
The compressor in a car's air conditioning system is like the heart. It is responsible for compressing the refrigerant gas, turning it into a high-temperature, high-pressure state. This allows the refrigerant to flow to the condenser to dissipate heat, then expand and reduce pressure to absorb heat, enabling the car to blow out cool air. Every time I drive in the scorching heat, I rely on it to cool down. If the compressor fails, the car becomes unbearably stuffy, and during long drives, it can cause dizziness and drowsiness, affecting safe driving. Therefore, regular maintenance is essential—check the belt and lubricating oil to ensure the air conditioning lasts longer and avoid embarrassing breakdowns on the road.
