气缸衬垫漏水故障CAE研究  

The CAE Analysis and Research of Water Leakage from Cylinder Head Gasket

作　　者：杨剑[1] 张文[1] 林志强[1] 周校平[1] 沈捷[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200030

出　　处：《车用发动机》2008年第B06期114-118,共5页Vehicle Engine

摘　　要：针对某发动机功率升级开发中出现的分组式缸盖第3缸和第4缸之间垫片渗水的故障进行了CAE计算分析。研究结果表明,发动机运行中,当第3缸无爆压,第4缸处于最高爆压时,分组式缸盖沿中间分开变形,变形不协调导致中间区域缸垫与机体、缸盖之间有间隙而发生漏水故障。In the durability test of a power improve engine which have two cylinder head, water leak from the cylinder head gasket betw＇ean two cylinder head. After CAE calculation and analysis, the report document that when cylinder 3 have no pressure and cylinder 4 in peak pressure, the distortion of the two cylinder head is not correspond and this result in clearance between cylinder head gasket ＆ cylinder head ＆ cylinder block. The distortion and the clearance cause the water leakage from cylinder head gasket.

关 键 词：柴油机 变形 漏水 故障分析 有限元法 

分 类 号：TK402[动力工程及工程热物理—动力机械及工程]