Metal gasket with reduced thickness bead

Details Metal gasket with reduced thickness bead Metal gasket with reduced thickness bead

1997-05-20

1999-03-09

Knight, Anthony

Seal for a joint or juncture

Seal between fixed parts or static contact against...

Contact seal between parts of internal combustion engine

277593, F02F 1100

Patent

active

058790128

ABSTRACT:
A metal gasket of the invention is used for an internal combustion engine and is basically formed of one metal plate. The plate includes a hole, an elongated or annular recess formed on the metal plate to surround the hole and a bead formed in the elongated recess. The elongated recess extends from an outer surface of the metal plate, and the thickness of the bead is less than the thickness of the metal plate. A top portion of the bead projects outwardly beyond the outer surface of the metal plate. Thus, when the metal plate is tightened, the top portion of the bead is compressed to a level corresponding to the outer surface of the plate to protect the bead. Therefore, creep relaxation of the bead is reduced or prevented.

REFERENCES:
patent: 5255926 (1993-10-01), Udagawa
patent: 5582415 (1996-12-01), Yoshida et al.
patent: 5626350 (1997-05-01), Kubouchi et al.
patent: 5628113 (1997-05-01), Tanaka et al.
patent: 5628518 (1997-05-01), Ushio et al.

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