Importance

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Abstract

Cylinder head gasket which has at least on one side elevations which form gasket sealing surfaces, which surround at least one aperture of the cylinder head gasket in an enclosed manner, for pressing against at least one engine component sealing surface and the height profile of which is designed prior to the installation of the cylinder head gasket to correspond at least approximately to the topography of the sealing gap to be sealed and resulting when a cylinder head gasket is installed, the respective combustion chamber openings of the cylinder head gasket being encircled by these elevations individually, wherein the elevations are formed by at least one basic member provided with a coating, the material of the basic member being selected in such a manner and its cross section being configured in such a manner that the basic member is not deformable in height at least in first sections of the gasket sealing surfaces under the maximum load occurring during the installation of the cylinder head gasket as well as during operation of the engine. In order to improve the sealing properties of such a cylinder head gasket, this is designed such that either at least one basic member is deformable in height in at least one second section of at least one of the gasket sealing surfaces under the maximum load occurring or that at least two gasket sealing surfaces are associated with at least one aperture and surround the latter in an enclosed manner, each of these sealing surfaces having a basic member surrounding this aperture in an enclosed manner, wherein one of these basic members is not deformable in height around the aperture under the maximum load occurring and is provided with the coating forming a sealing surface profiled in height in accordance with the topography of the sealing gap and another one of these basic members is deformable in height around the aperture under the maximum load occurring.

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First Claim