凸轮摇臂异常磨损的分析与试验

从改善润滑条件和减少机油因窜气受污染的角度解决了凸轮—摇臂副异常磨损问题。在改善凸轮—摇臂副润滑条件方面,加强了机油冷却使机油温度得到控制,加大了缸头机油供油油路直径、提高了机油泵泵油能力,使凸轮—摇臂副的供油量和油压得以提高;改进活塞环和缸体结构减少窜气,加强了密封。计算及试验表明,采取这些措施后,凸轮—摇臂副异常磨损问题得到了解决。

Analyze and Test of the Abnormal Wear Between the Cam and Rocker Arm

To improve the lubrication condition of cam-rocker arm,air cooling is reinforced to lower the lubricant temperature,and both the diameter of the oil supply hole on engine cylinder head and the oil pump capability are increased,hence more oil and higher pressure could reach cam-rocker.For decreasing blowby gas,the design of piston ring and block are modified to enhance the seal.Analyze and experiments show that these work eliminate the abnormal wear of cam-rocker arm.