Patent ID: 8267407

Claim:
A cylinder head gasket with a gasket plate defining a gasket plane and comprising a plurality of sheet metal layers arranged one over the other, and having at least one combustion chamber opening, said plurality of sheet metal layers, comprising a first functional layer having a first ring zone enclosing said combustion chamber opening and defining a first plane parallel to the gasket plane, and a radially inner half sealing bead and a radially outer half sealing bead formed within said first ring zone and being radially spaced from one another, each of said half-beads having a bead foot lying in said first plane and a bead crest projecting over said first plane in a first direction perpendicularly to said gasket plane, a second functional layer having a second ring zone enclosing said combustion chamber opening and defining a second plane parallel to said first plane, and a sealing bead formed within said second ring zone and having two bead feet lying in said second plane and at least one bead crest projecting over said second plane in said first direction, and an inner layer arranged directly between said first and second functional layers, said inner layer having a third ring zone enclosing the combustion chamber opening, wherein, in a plan view of the cylinder head gasket, the crests of said radially inner and outer half-beads of the first functional layer lie in relation to the inner layer approximately opposite the bead feet of the sealing bead of the second functional layer, and wherein, when the cylinder head gasket is installed, said third ring zone is clamped between the crests of said radially inner and outer half-beads and the bead feet of the sealing bead of the second functional layer so that those regions of the third ring zone which are pressed against the bead feet of the sealing bead of the second functional layer are supported by the crests of said half-beads of the first functional layer.