10S17C 4PK Compressor AC Auto 4472801320 For Subaru Outback 2.5 WXSB004

10S17C 4PK Compressor AC Auto 4472801320 For Subaru Outback2.5 WXSB004

The AC compressor is responsible for reducing the volume of the refrigerant gas, compressing it in order to complete the refrigerant cycle in the system. It can be thought of as the component that does all the heavy lifting. In order to perform this task, it requires energy, which it obtains from the engine through a pulley and shaft.

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Air Is Cool, Not Cold

One indication of a potential issue with your vehicle's air conditioning system is if the air coming from the interior vents doesn't feel as cold as it used to, despite having the AC switched on, temperature lowered, and fan set at a higher speed. This could be a subtle warning sign that there might be a problem with the air conditioning system. The two common culprits for such issues are either a refrigerant leak within the system, causing the loss of refrigerant, or a defective AC compressor.

If you notice that the air conditioning system isn't providing the same level of cooling as before, it is advisable to have it inspected by a professional technician. They can diagnose the problem and recommend the appropriate course of action to rectify the issue, be it addressing a refrigerant leak or repairing/replacing the AC compressor. Taking prompt action can help prevent further damage to the system and ensure optimal performance of the vehicle's air conditioning system.

Working Principle

The basic working principle of the automobile air conditioning compressor is to suck low-pressure cold gas (usually refrigerant) into the compressor cavity through the driving device, and then compress it into high-pressure and high-temperature gas.

Compressors usually use piston or screw compressors. In a piston compressor, the piston moves up and down in the cavity, and the cold gas is compressed by the movement of the piston. In a screw compressor, the screw compresses the cold gas. The compression process of the compressor increases the pressure and temperature of the cold gas. The high-pressure and high-temperature gas will then enter the condenser and be converted into high-pressure hot gas through heat dissipation, then cool and expand through the expansion valve, and finally enter the evaporator to prepare for circulation again.

Throughout the process, the compressor provides compression and conversion capabilities and is one of the key components to realize the automotive air conditioning refrigeration cycle.

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