发动机三结合面密封技术改进  

Improvement of Engine Three Binding Surface Sealing Technology

作　　者：邢正双[1] 张兆明[1] 邢东仕[1] 秦凤莲[1] 

机构地区：[1]上海汽车集团股份有限公司/上海市汽车动力总成重点实验室,上海201804

出　　处：《柴油机设计与制造》2017年第2期10-13,共4页Design and Manufacture of Diesel Engine

基　　金：上海市科学技术委员会(14DZ2260600)

摘　　要：某研发阶段的四缸柴油机在台架试验过程中,发现排气侧缸盖、缸体、链条室罩盖三结合面发生渗漏机油现象。经分析,原因为链条室罩盖垫片的材料及结构设计、密封胶的使用都不能很好地满足三结合面处的密封性要求,因此对垫片及密封胶进行改进,最终解决了三结合面渗漏机油的问题。Oil leakage from cylinder, block and chain cover binding surface on the four-cylinder engine which is in developmental stages often happen when the engine is in the process of bench test. By analysis, we found that the main reasons for the oil leakage were design defects , material of gasket and sealant can not satisfy the sealing requirement. The solution is to change the structure of gasket and model of sealant. The improvement effectively solved the oil leakage.

关 键 词：发动机 三结合面 密封技术 渗漏 

分 类 号：U464.172[机械工程—车辆工程]