Effect on Reliability of Fuel Injection Pump Camshaft Caused by Roller Structure

摘要：

Based on the theory of contact fatigue, the reason of pitting erosion and edge effect fringing of cam profile surface were analysed.And contact hertz stress between the cam and roller of fuel injection pump in some high strengthening and heavy duty diesel engine was calculated by using finite element software ANSYS,while the physical dimensions of roller were variable.After contrasting the results, the contact stress between cam and roller could be reduced, and pitting erosion would be avoided,even the edge effect fringing should be released just by machining the roller structure dimension well.Then the reliability of camshaft would be improved sharply.

关键词： Circle Arc Roller Camshaft Pitting Corrosion Contact corrosion Fuel -Injection Pump

作者: Wang-Jianping HUANG-Liang MA-Xiaoli

作者单位: Engine Center of China North Engine Research Institute,CNERI Langfang city,Hebei Province,China

会议类型: 国际会议

会议名称: 2009 8th International Conference on Reliability,Maintainability and Safety(第八届中国国际可靠性、维修性、安全性会议)

会议地点: 成都

会议语种:英文

页码: 982-985

在线出版日期: 2009-08-24（万方平台首次上网日期，不代表论文的发表时间）