Metal laminate gasket having sealing mechanism formed of recess

Details Metal laminate gasket having sealing mechanism formed of recess Metal laminate gasket having sealing mechanism formed of recess

1993-07-20

1995-04-25

Yuen, Henry C.

Internal-combustion engines

Particular piston and enclosing cylinder construction

Cylinder head

277235B, 277236, F02F 1100

Patent

active

054089638

ABSTRACT:
A metal laminate gasket of the invention is used for an internal combustion engine having at least one hole to be sealed. The gasket is basically formed of first and second metal plates extending substantially throughout an entire area of the engine. The first plate includes an annular recess formed at an upper side around a first hole to form a stepped portion. The second plate includes a curved portion to define a second hole to be located inside the first hole, and a flange extending from the curved portion in a direction away from the second hole. The flange has a thickness greater than the depth of the annular recess. When the gasket is assembled, the flange is located above the annular recess. The flange provides surface pressure around the hole of the engine greater than that outside the recess when the gasket is tightened. The surface pressure around the hole may be precisely adjusted.

REFERENCES:
patent: 4531750 (1985-07-01), Herrington
patent: 4662643 (1987-05-01), Rosenquist
patent: 4739999 (1988-04-01), Ishii et al.
patent: 4776601 (1988-10-01), Yamada
patent: 5022661 (1991-06-01), Nakasone
patent: 5082298 (1992-01-01), Uchida et al.
patent: 5120078 (1992-09-01), Udagawa
patent: 5125375 (1992-06-01), Vuk
patent: 5215314 (1993-06-01), Nakaya

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