Internal-combustion engines – Particular piston and enclosing cylinder construction – Cylinder head
Patent
1994-01-03
1995-05-02
Dolinar, Andrew M.
Internal-combustion engines
Particular piston and enclosing cylinder construction
Cylinder head
277235B, F16J 1512
Patent
active
054109973
ABSTRACT:
A method of sealing a high performance internal combustion engine with a head gasket having a fire ring comprising providing a groove in the head or block generally concentric with each said combustion opening, each groove having a land area and a generally vertical wall, and positioning the gasket on the block so that when the head is torqued down, each groove receives a fire ring and compresses the wire ring thereof to provide a primary seal therewith at the land area, the wall engages the armor of the fire ring to form a secondary seal, and the head and block clamping surfaces engages the armor to clamp the armor. The head gasket has a main body of a first thickness and defines a plurality of combustion openings. A fire ring is disposed and secured in each combustion opening, each fire ring comprising an armor ensheathing a wire ring for providing a combustion seal. The armor is of a second thickness substantially greater than the first thickness. The armor and main body may be intergrally formed. In use, the combustion seal provides a labyrinth seal against the spaced surfaces of the groove and against a corner defined by the groove.
REFERENCES:
patent: 4369980 (1983-01-01), Backlin
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patent: 4776601 (1988-10-01), Yamada
patent: 4791897 (1988-12-01), Udagawa
patent: 4809653 (1989-03-01), Udagawa et al.
patent: 5078413 (1992-01-01), Miyaoh
patent: 5215314 (1993-06-01), Nakaya
patent: 5275139 (1994-01-01), Rosenquist
Dolinar Andrew M.
Fel-Pro Incorporated
Macy M.
LandOfFree
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