Patent ID: 6164661
Filing Date: 2000-12-26
Classification: F02F,F16J

Abstract:
A cylinder head gasket including a gasket body having a combustion chamber opening formed therein in alignment with a cylinder bore, and a shim ring surrounding the combustion chamber opening, the shim ring being spot welded to the gasket body along a circumferentially extending weld line, wherein the weld spacing of the spot welding is varied to provide a zone of a high welding density and a zone of a low welding density in the circumferential direction of the shim ring, a said zone of high welding density corresponding to a portion of the shim ring which is subject to an increased heat shrinkage of a cylinder head and which is thus welded at the high welding density while the remainder is welded at the low welding density, the portion of the shim ring which is subject to an increased heat shrinkage being adjacent to an exhaust manifold.