气缸盖罩橡胶密封圈的密封性能分析

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气缸盖罩橡胶密封圈的密封性能分析
) x. ?% I' E. L3 |【英文篇名】 Analysis on Sealing Performance of Rubber Seal Ring of Cylinder Head Cover
3 Y3 Q: H3 p% q【作者中文名】 郭晨海; 梁福祥; 姚晓兰; 姜树李; 王一江; 陆金龙;
【作者英文名】 Guo Chenhai1; Liang Fuxiang1; Yao Xiaolian1; Jiang Shuli1; Wang Yijiang2; Lu Jinlong2 1-School of Automobile and Traffic Engineering; Jiangsu University（Zhenjiang; Jiangsu; 212013; China）2-FAW Jiefang Wuxi Diesel Engine Works;
【作者单位】 江苏大学汽车学院; 一汽解放公司无锡柴油机厂;
【文献出处】 小型内燃机与摩托车, Small Internal Combustion Engine and Motorcycle, 编辑部邮箱 2011年 01期  
3 ?0 n( M2 F+ [8 P: B: ?9 c期刊荣誉：中文核心期刊要目总览  ASPT来源刊  CJFD收录刊
$ J' X5 z6 M0 y) f" ]【关键词】 密封; 橡胶; 有限元法; 柴油机;
【英文关键词】 Seal; Rubber; FEM; Diesel;
【摘要】 利用有限元法对气缸盖-密封圈-气缸盖罩组合件进行螺栓预紧状态下的结构分析,得到了密封圈上的压力分布云图,发现密封圈主刃口的两个拐角处密封压力接近于零,不能有效地密封润滑油,与试验中该处漏油的实际情况一致。进一步的分析表明:漏油的主要原因是由于结构不对称,使得该位置缺少螺栓,导致密封压力接近于零。改进方案采取将气缸盖罩材质改为铝,将盖罩螺栓组中橡胶衬套改为减震弹簧等措施,大幅度地提高了最小密封压力,从而解决了密封问题。
【英文摘要】 The assembly of cylinder head,seal ring and cylinder head cover in pre-tightening condition were analyzed by finite element method.And the pressure distribution on the seal ring was obtained.It is found that the sealed pressure around the two main edge of seal ring is close to zero,which made the lubricant cannot be effectively sealed.This is constant with actual situation of oil spill in the same area during the test.Further analysis showed that the main reason for oil spill is due to structural asymmetry,...