Cylinder head gasket having reinforced combustion seal

Details Cylinder head gasket having reinforced combustion seal Cylinder head gasket having reinforced combustion seal

2002-03-25

2003-12-30

Miller, William (Department: 3677)

Seal for a joint or juncture

Seal between fixed parts or static contact against...

C277S592000, C277S600000

Reexamination Certificate

active

06669204

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Technical Field
This invention relates generally to cylinder head gaskets and more particularly to a cylinder head gasket having reinforcement of a coolant opening adjacent to a combustion opening.
2. Related Art
A coolant passage in an engine block is typically located very close to one of the cylinder bores where combustion occurs. The relatively narrow portion of gasket material between a combustion opening and a closely spaced coolant opening in a gasket is prone to failure and is difficult to properly seal.
SUMMARY OF THE INVENTION AND ADVANTAGES
A gasket constructed according to the invention comprises a generally flat gasket body having a combustion opening and a coolant opening adjacent to but closely spaced from the combustion opening to define a narrow region of the gasket body between the openings. The gasket is characterized by including armoring comprising a metallic armor layer having a generally C-shaped section folded over an edge of said coolant opening adjacent to the combustion opening.
The gasket construction according to the invention has the advantage of providing a simple, but effective, solution for reinforcing the troublesome narrow region between the combustion opening and a closely adjacent coolant opening. The generally C-shaped armoring provides the needed reinforcement to provide a high integrity seal under high pressure, high temperature conditions. The armoring according to the invention avoids complicated bridges or other structure sometimes employed between adjacent combustion openings which involves removal of the narrow region in lieu of the bridge.
Another advantage of the present invention is that the armoring for the coolant opening can be formed as an extension of armoring used for the associated combustion opening, in a simple, cost-effective manner.


REFERENCES:
patent: 1793423 (1931-02-01), Fitzgerald
patent: 1815601 (1931-07-01), Victor
patent: 1903990 (1933-04-01), Fitzgerald
patent: 1974633 (1934-09-01), Victor
patent: 2157102 (1939-05-01), Victor et al.
patent: 3784212 (1974-01-01), Doerfling
patent: 4284282 (1981-08-01), Lonne
patent: 4330585 (1982-05-01), Eyrard et al.
patent: 4434989 (1984-03-01), Beyer et al.
patent: 4468044 (1984-08-01), Ulmer et al.
patent: 4531750 (1985-07-01), Herrington
patent: 4662643 (1987-05-01), Rosenquist
patent: 4711456 (1987-12-01), Udagawa
patent: 4767124 (1988-08-01), Udagawa
patent: 4817969 (1989-04-01), McDowell et al.
patent: 5306023 (1994-04-01), Udagawa
patent: 5772215 (1998-06-01), West
patent: 5873578 (1999-02-01), Jargeaix

Affiliated with

Also associated with

Rating

Cylinder head gasket having reinforced combustion seal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cylinder head gasket having reinforced combustion seal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cylinder head gasket having reinforced combustion seal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3145500