Seal Failure Cause Analysis and Reliability Development of Cylinder Head Gasket for Gasoline Engine
In order to further improve the reliability of gasoline engine cylinder head gasket design and devel-opment,reduce the probability of cylinder head gasket problems in the development process,and quickly solve the cylinder head gasket seal failure problem.The seal failure problem of cylinder head gasket of gasoline engine is studied.This paper analyzes the related parts which affect the sealing performance of cylinder head gasket,in-cluding cylinder block,cylinder head,cylinder head bolt and cylinder head gasket itself,and puts forward the optimization measures and design requirements of these parts.Aiming at the design and development of cylinder head gasket,a FEA method combined with transient temperature field boundary of thermal shock test is pro-posed,which can obtain the simulation analysis results of cylinder head gasket more accurately.At the same time,in order to standardize the design and development of cylinder head gasket,a design and development process of cylinder head gasket is proposed.
Gasoline EngineCylinder head gasketFEA methodTransient temperature