What Causes Cylinder Scoring in Automotive Air Conditioning Compressors?
2 Answers
Automotive air conditioning compressor cylinder scoring is caused by: insufficient lubrication oil inside the compressor. The main function of the compressor is to use the motor as power to drive the compressor rotation, which pushes the piston to reciprocate in the cylinder, thereby circulating the refrigerant in the system. More details are as follows: 1. The working process of the compressor: The compressor's operation involves a cyclic process of suction, compression, exhaust, and expansion. 2. The compressor is the core component of a refrigerator: The compressor is the heart of a refrigerator. Using a compressor with advanced technology and high quality can extend the refrigerator's service life, improve cooling efficiency, and reduce energy consumption and noise.
I just helped my neighbor check this issue last week. Compressor cylinder scoring, simply put, means internal metal parts have been scraped, most commonly due to lack of or degraded refrigerant oil. Refrigerant oil circulates together with the refrigerant - if your car's refrigerant leaks more than 30%, the oil can't be properly circulated, causing components to grind dry. Another possibility is air entering during refrigerant replacement; moisture in the air can emulsify and degrade the oil. Additionally, an overtightened belt can prematurely wear out bearings, and fragments entering the cylinder can also cause scoring. Fixing this problem basically requires replacing the entire compressor. I recommend checking if your condenser fan is working properly, as poor cooling can also overwork the compressor to failure.
