High output automotive engine gasket assembly and method of maki

Details High output automotive engine gasket assembly and method of maki High output automotive engine gasket assembly and method of maki

1995-01-17

1996-01-09

Okonsky, David A.

Internal-combustion engines

Particular piston and enclosing cylinder construction

Cylinder head

277235B, F16J 1512

Patent

active

054820146

ABSTRACT:
An automotive head gasket assembly and shim for installation between the head and block of an engine is disclosed. The head gasket includes a main body of a first thickness having a central core and compressible composite facing layers laminated to the surface of the core. The main body defines a plurality of combustion openings. A fire ring is disposed and secured in each combustion opening. Each of the fire rings includes a generally U-shaped armor having a pair of legs overlying and underlying the main body adjacent a combustion opening and a central body connecting the legs and ensheathing a wire ring for providing a combustion seal. A shim is temporarily disposed on the gasket on one of the facing layers. The shim surrounds each of the combustion openings and defines openings thereat of a size greater than the size of the wire ring so that the wire ring is disposed to lie within the opening. The shim is adapted to be adhesively secured to one of the head and the block and to form a groove to resist blow-out of the gasket assembly and to enhance sealing.

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patent: 4662643 (1987-05-01), Rosenquist
patent: 4834399 (1989-05-01), Udagawa et al.
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patent: 5255926 (1993-10-01), Udagawa
patent: 5275139 (1994-01-01), Rosenquist
patent: 5310197 (1994-05-01), Bruch et al.

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