Patent ID: 7527269
Filing Date: 2009-05-05
Classification: F16J

Abstract:
1. Cylinder head gasket with an at least substantially metallic gasket plate comprising one or more sheet metal layers each having a sheet thickness, at least one combustion chamber through-opening, an endless sealing bead surrounding the combustion chamber through-opening and being elastically deformable in height, said sealing bead being formed in said one or more sheet metal layers, and in relation to the sealing bead, both radially inside and radially outside the sealing bead, a deformation delimiting device delimiting a deformation of said sealing bead and surrounding the combustion chamber through-opening at least partially, each said deformation delimiting device being, in a plan view of the gasket plate, close to the sealing bead and formed by a deformation such that at least one elevation having an elevation height is formed in at least one sheet metal layer main surface in the area of each deformation delimiting device, and the total of the sheet thickness plus the elevation height in the area of each deformation delimiting device is greater than the original undeformed sheet thickness, wherein one deformation delimiting device comprises a bead which, in a plan view of the gasket plate, forms over at least part of its length an at least almost complete meandering bead shape extending in a circumferential direction of the combustion chamber throughopening, and the other deformation delimiting device comprises in a plan view of the gasket plate and in said circumferential direction of the combustion chamber through-opening a plurality of discrete elevations.