Cylinder head gasket

Details Cylinder head gasket Cylinder head gasket

2006-02-14

2006-02-14

Pickard, Alison K. (Department: 3673)

Seal for a joint or juncture

Seal between fixed parts or static contact against...

Contact seal between parts of internal combustion engine

C277S595000

Reexamination Certificate

active

06997462

ABSTRACT:
A cylinder head gasket is provided for an engine with low rigidity and a high maximum pressure. In the cylinder head gasket, it is possible to enhance the secondary sealing without greatly affecting the primary sealing. The cylinder head gasket is formed of a first metal plate with a first full bead under a folded portion around a cylinder bore, and a second metal plate with a second full bead around the first full bead. The second metal plate is made of a material with elasticity greater than that of the first metal plate, and is arranged with a gap relative to an outer edge of the folded portion so as not to overlap. The first full bead and the second full bead have top portions facing in opposite directions.

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