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我单位2001年7月购进了33辆YBL 6771H型客车。但在空调系统运行不到半年的时间内,28辆客车的空调压缩机(日本产DKS-32型)相继损坏。对几辆客车空调系统的检查表明:空调系统无明显的外部损伤,没有制冷剂泄漏处,空调系统运行时无异响,但空调压缩机两侧高、低压蒸气管间的温差不明显;在接上歧管压力计,并开启空调系统后,发现空调系统高压侧的压力
My unit bought 33 YBL 6771H passenger cars in July 2001. However, in less than half a year of operation of the air-conditioning system, 28 passenger car air-conditioning compressors (Japan-made DKS-32 type) have been damaged. Inspection of several passenger car air conditioning systems showed that there was no obvious external damage to the air conditioning system, no refrigerant leakage and no abnormal noise when the air conditioning system was operating. However, the temperature difference between the high and low pressure steam pipes on both sides of the air conditioner compressor was not obvious. Connected to the manifold pressure gauge, and open the air conditioning system, the air conditioning system to find the high pressure side of the pressure