Cylinder head gasket

Details Cylinder head gasket Cylinder head gasket

2006-10-13

2008-05-27

Gay, Jennifer H (Department: 3673)

Seal for a joint or juncture

Seal between fixed parts or static contact against...

Contact seal between parts of internal combustion engine

C277S593000

Reexamination Certificate

active

07377520

ABSTRACT:
A cylinder head gasket is used for an engine having a cylinder liner and a cylinder block. The gasket includes first to third metal plates laminated together. The first metal plate includes a base portion, a curved portion, a flange extending from the curved portion, and a first damper bead formed on the base portion around a cylinder liner. The first damper bead is formed of a full bead, extends toward the flange and crosses a border portion between the cylinder liner and the cylinder block. The second metal plate is disposed over the base portion, and has an inner portion inserted between the flange and the base portion, an outer portion outside the inner portion, and a second damper bead formed on the outer portion to extend toward the first damper bead. The third metal plate is placed between the first damper bead and the second damper bead.

REFERENCES:
patent: 4861046 (1989-08-01), Udagawa
patent: 4896891 (1990-01-01), Udagawa
patent: 5058908 (1991-10-01), Udagawa
patent: 5169163 (1992-12-01), Udagawa et al.
patent: 5511796 (1996-04-01), Udagawa
patent: 5634646 (1997-06-01), Miyaoh
patent: 5899462 (1999-05-01), Udagawa
patent: 6758479 (2004-07-01), Miyaoh

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