Sealing ring assembly

Details Sealing ring assembly Sealing ring assembly

1988-07-12

1990-04-17

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277192, 277216, F16J 916

Patent

active

049173910

ABSTRACT:
An improved sealing ring assembly in which a three-piece ring seal is provided with a residue deposit groove void to accumulate contaminants to minimize clogging between ring members. Mounted on a piston in a pneumatic valve assembly which is actuated by pressure routing effected by selective solenoid energization, the sealing ring assembly improves the reliability of piston actuation in high temperature, high contaminant service.

REFERENCES:
patent: 3656766 (1972-04-01), Geffroy
patent: 3917290 (1975-11-01), Geffroy
patent: 4475739 (1984-10-01), Nakajima et al.
patent: 4655983 (1987-04-01), Philby
patent: 4669736 (1987-06-01), Meijer
patent: 4681817 (1987-07-01), Shinada
patent: 4706971 (1987-11-01), Schirmer
Koppers Engineered Products, "Dynamic Sealing: Theory and Practice", Rev. 2/84 pp. Cover and 26-35.

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