气门导管同轴度对气门油封泄漏率影响研究  

Study on the Effect of Valve Stem Oil Seal Leakage by Valve Guide Coaxiality

作　　者：李斌 云峰 康明明 闫珊珊 朱永杰 陈国斌 Li Bin;Yun Feng;Kang Mingming;Yan Shanshan;Zhu Yongjie;Chen Guobin(State Key Laboratory of Engine Reliability,Weifang 261061,Shandong,China;Weichai power engine technology research institute,Weifang 261061,Shandong,China)

机构地区：[1]内燃机可靠性国家重点实验室,山东潍坊261061 [2]潍柴动力股份有限公司发动机技术研究院,山东潍坊261061

出　　处：《柴油机设计与制造》2021年第4期33-36,共4页Design and Manufacture of Diesel Engine

摘　　要：随着发动机排放升级和寿命提升,对气门油封安装后整机运行实际机油泄漏率一致性要求进一步提高。通过测量不同气门导管同轴度时的气门油封的机油泄漏率,研究了气门导管同轴度对气门油封机油泄漏率的影响。试验结果表明:气门导管同轴度对气门油封机油泄漏率的影响较大,且非线性关系,存在失效临界点Φ0.3 mm。通过加工定位优化,可以确保尺寸一致性,进而保证机油泄漏率性能一致性。As the emission upgrade and engine service life extension,the consistency of valve stem oil seal leakage on engine is much more rigorous.The valve stem oil seal leakage on different valve guide coaxially was investigated,test results shown valve stem coaxiality has a great influence on oil seal leakage.The relationship is nonlinear,and there is a failure critical point ofΦ0.3 mm.By optimizing the processing location method,the consistency of valve stem oil seal leakage can be well assured.

关 键 词：气门油封 泄漏率 一致性 气门导管 同轴度 

分 类 号：TK403[动力工程及工程热物理—动力机械及工程]