Sealing ring structure

Details Sealing ring structure Sealing ring structure

1988-11-16

1990-03-27

Shoap, Allan N.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277176, F16J 1524, F16J 1554

Patent

active

049114557

ABSTRACT:
A sealing ring structure comprising a sealing ring made of a tough-elastic plastic material and a stressing ring made of a rubber-elastic material has the outer surface of the sealing ring designed as a conical surface and arranged in such a manner, relative to a groove accommodating the sealing ring and the stressing ring, that the stressing ring comes to occupy a position between this conical surface and the flank of the groove on the low-pressure side. The pressure fluid, which penetrates to the outside of the sealing ring through pressure-relieving grooves, urges the stressing ring into the wedge-shaped gap between the outer surface of the sealing ring and the end face of the groove. Consequently, the sealing ring is wedged in the groove and prevented from rotating relative to the machine part comprising the groove and to the stressing ring.

REFERENCES:
patent: 2175868 (1939-10-01), Bentley
patent: 3109661 (1963-11-01), Swaim et al.
patent: 3132869 (1964-05-01), Campbell
patent: 3506275 (1970-04-01), Moriyama
patent: 3751047 (1973-08-01), McGee
patent: 3893675 (1975-07-01), Geffroy
patent: 3909016 (1975-09-01), Traub et al.
patent: 4615261 (1986-10-01), Meijer

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