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Working principle of air conditioning compressor cylinder block
Nov 25,2025
Inhalation process: When the piston moves downward, the volume inside the cylinder increases and the pressure decreases. At this point, the refrigerant is drawn into the cylinder from the evaporator.
Compression process: When the piston moves upward, the volume inside the cylinder decreases and the pressure increases. The refrigerant is compressed into high-temperature and high-pressure gas inside the cylinder.
Exhaust process: When the pressure inside the cylinder reaches a certain level, the exhaust valve opens, and the high-temperature and high-pressure refrigerant gas is discharged from the cylinder body and enters the condenser for cooling and liquefaction.
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Application scenarios of compressor front cover
Automotive air conditioning compressor: In automotive air conditioning systems, the front cover of the compressor needs to be lightweight, corrosion-resistant, and have good heat dissipation performance to adapt to the narrow space and harsh environment inside the car.
Structure type of compressor front cover
Integral front cover: It is cast or machined as a whole with the compressor cylinder or shell, with a compact structure, suitable for small compressors. This structure helps reduce the number of parts and improve assembly efficiency.
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