在发动机结构中,活塞环是一个具有弹性的开口环体,也是在高温、高压环境下需做三个方向运动的唯一零件,工作条件最为苛刻,非常重要且易受损,一旦产生异常,就会出现窜机油和动力下降等故障。其检修注意要点如下:1、仔细察看第二道气环和油环下部至活塞裙部,如 In the engine structure, the piston ring is a flexible open ring body, but also in the high temperature and pressure conditions need to do the three-dimensional movement of the only parts, the most demanding working conditions, very important and vulnerable, in the event of an exception Will appear channeling oil and power decline and other failures. The overhaul points are as follows: 1, a closer look at the second gas ring and the lower part of the ring to the piston skirt, such as