Patent ID: 7739995

Claim:
A cylinder head gasket for sealing between a cylinder block and a cylinder head of an open deck engine, comprising: a first metal plate having a base portion, a curved portion extending from the base portion for defining a cylinder bore of the engine, and a folded portion extending from the curved portion and located under the base portion; a second metal plate having an inner portion disposed on the folded portion, an outer portion outside the folded portion, and a first half bead provided between the inner and outer portions and extending in a direction away from the base portion; an annular bead plate provided on the inner portion of the second metal plate, and having a first full bead projecting toward the base portion, and an outer edge; and an intermediate plate provided on the outer portion of the second metal plate and having an inner end portion disposed under the outer edge of the annular bead plate, wherein a total thickness of the metal plates at the flange is equal to a total thickness of the metal plates outside the flange including the inner end portion.