Floating valve stem seal

Details Floating valve stem seal Floating valve stem seal

1989-06-30

1990-08-14

Shoap, Allan N.

Internal-combustion engines

Valve

Valve head cooperates with manifold

277153, 277174, 277177, 277178, F01C 308

Patent

active

049478117

ABSTRACT:
A valve stem seal assembly includes a rigid cylindrical shell and an annular resilient seal body supported within an endwall of the shell. The resilient seal body includes an exterior circumferential groove, and the endwall contains an aperture adapted for being received in the groove. The circumference of the aperture in the endwall is greater than the circumference of the bottom of the groove. A predetermined radial clearance is thereby created to provide that the resilient seal body remains concentric with a reciprocating valve stem, notwithstanding the fact that the stem may be eccentric relative to a valve guide to which the assembly is affixed.

REFERENCES:
patent: 2157867 (1939-05-01), Robertson et al.
patent: 3069174 (1962-12-01), Skinner
patent: 3235271 (1966-02-01), Johnson et al.
patent: 3372941 (1968-03-01), Liebig
patent: 3379445 (1968-04-01), Fisher
patent: 3459166 (1969-08-01), Updike et al.
patent: 3498621 (1970-03-01), Wilson
patent: 3498622 (1970-03-01), Belart
patent: 3531134 (1970-09-01), Kammeraad
patent: 3554180 (1971-01-01), Lesser
patent: 3599992 (1971-08-01), Kammeraad
patent: 3699942 (1972-11-01), Moray
patent: 3771800 (1973-11-01), Wilson et al.
patent: 4474379 (1984-10-01), Holzer
patent: 4494759 (1982-01-01), Kieffer
patent: 4502696 (1985-03-01), Kammeraad
patent: 4531483 (1985-07-01), Vossieck et al.
patent: 4773363 (1988-09-01), Stritzke
patent: 4811704 (1989-03-01), Boehmer et al.
patent: 4811960 (1989-03-01), Stritzke et al.
patent: 4834037 (1989-05-01), Lafever

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