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陈东章同志反映他们村有一台S195柴油机排气管喷机油,薄德才同志反映他的小四轮拖拉机上的S1100柴油机废气孔排机油。他们都更换了缸套、活塞、活塞环,甚至气门、气门导管、气门弹簧等零件,但是没有用。这两台柴油机的故障是同一原因——气缸的气密性不好。人们往往只注意了影响气密性的活塞、活塞环及缸套等零件,却忽视了也会造成气密性不好的下面几个原因。 1.连杆疲劳变形柴油机工作时,连杆将活塞承受的气体压力传给曲轴,又将曲轴的旋转运动传给活塞,它承受的最高压力可达(38～68)×10~3牛顿。
Comrade Chen Dong-zhang reflected that there was an S195 diesel exhaust pipe engine oil in their village. Comrade Betty reflected the S1100 diesel engine exhaust hole row on his small four-wheel tractor. They have replaced the cylinder liner, piston, piston rings, and even valves, valve guides, valve springs and other parts, but no use. The failure of these two diesel engines is the same reason - the airtightness of the cylinder is not good. People often only pay attention to the airtightness of the piston, piston rings and cylinder liner and other parts, but also ignored the air tightness can also cause the following several reasons. 1. Connecting Rod Fatigue Deformation When the diesel engine is working, the connecting rod transmits the pressure of the piston to the crankshaft and the crankshaft to the piston. The highest pressure it can withstand is 38-68 × 10-3N.