Patent ID: 8033263

Claim:
A combination, comprising: an open-deck engine including a cylinder block having a cylindrical portion forming a cylinder bore, a wall portion facing the cylindrical portion, and a water jacket between the cylindrical portion and the wall portion, and a cylinder head gasket, said cylinder head gasket comprising: a first metal plate having a base portion, a curved portion extending from the base portion for defining the 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 radially outwardly relative to the cylinder bore 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 intermediate plate provided between the outer portion of the second metal plate and the base portion of the first metal plate, said intermediate plate having an inner end portion disposed on the outer portion, and a second half bead extending from an inner periphery of the inner end portion toward the base portion of the first metal plate, wherein the cylindrical portion has an outer periphery facing the wall portion, an inner periphery forming the cylinder bore, and a thickness between the inner and outer peripheries, the thickness partly changing, and wherein the inner end portion of the intermediate plate is located on the cylindrical portion along the outer periphery of the cylindrical portion, a distance of the outer periphery of the cylindrical portion from the inner periphery of the cylindrical portion changing according to the thickness of the cylindrical portion.