Cylinder head gasket

Details Cylinder head gasket Cylinder head gasket

2005-02-08

2005-02-08

Pickard, Alison (Department: 3676)

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

06851677

ABSTRACT:
A cylinder head gasket for an internal combustion engine includes a first metal plate having first holes and first beads formed around the respective first holes, and a second metal plate disposed under the first metal plate and having a second bead extending toward the first metal plate. A distance between the first and second beads or a width of at least one of the first and second beads at a high heat load portion of the cylinder bore is formed to be greater than a distance between the first and second beads or a width of at least one of the first and second beads at a low heat load portion of the cylinder bore to thereby reduce a surface pressure at the high heat load portion.

REFERENCES:
patent: 4861046 (1989-08-01), Udagawa
patent: 5255926 (1993-10-01), Udagawa
patent: 5269541 (1993-12-01), Inamura
patent: 5435575 (1995-07-01), Udagawa
patent: 5536024 (1996-07-01), Udagawa
patent: 5560623 (1996-10-01), Yoshino
patent: 5711537 (1998-01-01), Inamura et al.
patent: 5873577 (1999-02-01), Inamura
patent: 6139025 (2000-10-01), Miyaoh
patent: 1 108 925 (2001-06-01), None
Patent Abstracts of Japan, Pub. No. 04095669, Pub. Date Mar. 27, 1992, Applicant: Toyota Motor Corp.

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