Metallic gasket for use in an internal combustion engine

Details Metallic gasket for use in an internal combustion engine Metallic gasket for use in an internal combustion engine

1987-12-18

1990-04-10

Shoap, Allan N.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277234, 277235B, 277236, F16J 1508

Patent

active

049153986

ABSTRACT:
A metallic gasket to be interposed between a cylinder block and a cylinder head of an internal combustion engine. On this gasket is provided a embossment which surrounds an opening formed in this gasket along a smooth closed loop, and an inclination angle of an inner circumferential portion of the embossment is selected smaller than an inclination angle of an outer circumferential portion thereof. When the embossment is crushed by a fastening force generated by bolts, a deformation stress in the inner circumferential portion which is normally liable to become large, becomes nearly equal to a deformation stress in the outer circumferential portion, and accordingly, degradation of a sealing property and fatigue rupture caused by excessive deformation of the inner circumferential portion can be prevented.

REFERENCES:
patent: 4471968 (1984-09-01), Schlaupitz et al.

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