Patent ID: 7806414
Filing Date: 2010-10-05
Classification: F16J

Abstract:
1. Cylinder head gasket comprising at least one gasket sheet with at least one combustion chamber opening and a combustion chamber bead, which combustion chamber bead is elastically deformable with regard to its height and surrounds the combustion chamber opening, and at least one deformation limiting means limiting the deformation of the combustion chamber bead, wherein the cylinder head gasket comprises a compensation means which comprises at least one compensation bead having a higher rigidity than the combustion chamber bead and extending in a peripheral direction of the combustion chamber opening, said at least one compensation bead having a full bead dome shape in cross- section with a deformable dome height of said at least one compensation bead being essentially reversibly changed locally along said peripheral direction where there is a change in local sealing gap height when the operating status of an engine in which the gasket is installed changes, and which compensation means at least partially supports both the combustion chamber bead and the deformation limiting means, wherein an outer bead edge of at least one of the at least one compensation bead runs at a greater distance from a central point of the combustion chamber opening than an inner bead edge of the combustion chamber bead.