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东风型内燃机车已运用十多年了,但是作为机车柴油机重要作功部件的气缸套裂损,仍是普遍性的惯性故障。不论是厂修的机车,还是架修或定修的机车,通常运用不到一个架修期,就有因气缸套裂损而需修临的,甚至酿成机破事故,威胁运输安全,影响机车的运用效率和经济效益。就加格达奇内燃机务段而言,每年因气缸套裂损而造成临修的机车就达40～50台次,机车因检修停运时间累计长达540多小时。有的机车在一
Dongfeng diesel locomotive has been used for more than ten years, but it is still a common inertial fault that the cylinder liner cracked as an important work component of locomotive diesel engine. Whether it is a factory-repaired locomotive or a repaired or repaired locomotive, it usually uses less than one shelf repair period, and there is a need to repair the cylinder liner for crack damage, even causing the machine to crash, threatening the transportation safety and impact Locomotive efficiency and economic efficiency. In the case of Jiagedaqi internal combustion engine segment, there are 40 to 50 units of locomotives repaired each year due to crackage of the cylinder liner, and the locomotives have accumulated up to 540 hours during the shutdown due to overhaul. Some locomotive in one