Internal-combustion engines – Particular piston and enclosing cylinder construction – Cylinder head
Patent
1993-02-09
1994-01-04
Argenbright, Tony M.
Internal-combustion engines
Particular piston and enclosing cylinder construction
Cylinder head
277235B, F16J 1512
Patent
active
052751392
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 engage the armor to clamp the armor. The head gasket has a main body of a first thickness including a central core and facing layers laminated to the core, and defines a plurality of combustion openings. A fire ring is disposed and secured in each combustion opening, each fire ring comprising 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. 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: 2788782 (1957-04-01), Schmidt
patent: 3532349 (1970-10-01), Czernik
patent: 4662643 (1987-05-01), Rosenquist
patent: 4776601 (1988-10-01), Yamada
patent: 5120078 (1992-06-01), Udagawa
patent: 5125375 (1992-06-01), Vuk
patent: 5215314 (1993-06-01), Nakaya
Argenbright Tony M.
Fel-Pro Incorporated
Macy M.
LandOfFree
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