A Study of Failure Examples for Refrigerant Gas Leakage in Automotive Air Conditioner System

자동차 에어컨 냉매 가스 누설에 대한 고장사례 고찰

Lee, Il Kwon;Kook, Chang Ho;Moon, Hak Hoon;You, Chang Bae

  • Received : 2016.03.17
  • Accepted : 2016.04.28
  • Published : 2016.04.30


This paper is to analyze and study the failure examples of refrigerant gas in automotive air conditioner. The first example, the air conditioner compressor continually operated that the refrigerant was leaked in air conditioner system. By lubrication shortage, the piston was partially sticked on cylinder of air conditioner compressor inner part. This was caused the phenomenon of engine operation trouble by load increasing with engine rpm variation during engine running. The second example, it sought the fact that the air conditioner refrigerant gas was leaked from air conditioner compressor to condenser high pressure pipe toward rear air conditioner checking with the lines of air conditioner. The third example, the refrigerant gas of air conditioner found that was leaked imperceptible from condenser inner by crack that was generated on the fins of air conditioner condenser. Therefore, the air conditioner system that maintain the air conditioner by decreasing the in-car temperature must meticulously manage to not leak the air conditioner refrigerant gas.


air conditioner system;refrigerant gas;leakage;compressor;line pipe;condenser


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