Nippon Gasket Company, Ltd.

Masanori Kusano

Osamu Jinno

A cylinder head gaskethas a gas seal plate Pin which a combustion chamber holeis drilled, an oil seal plate Pin which an oil holeis drilled, and a main plate Pprovided between the gas seal plate and the oil seal plate. Plate thicknesses of the gas seal plate, the oil seal plate, and the main plate are made different from each other, the plate thickness of the gas seal plate is larger than the plate thicknesses of the oil seal plate and the main plate, and end portions of the gas seal plate, the oil seal plate, and the main plate are connected to each other. A combustion gas, lubricant oil or the like from a combustion chamber or an oil passage can be effectively sealed, and the cylinder head gasket can be manufactured inexpensively.

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Toyota, Japan

Masanori Kusano