Face seal with rotatable seal ring

Details Face seal with rotatable seal ring Face seal with rotatable seal ring

1981-06-05

1982-09-28

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 84, 277 92, 277173, 3081871, 305 11, F16J 1534

Patent

active

043515339

ABSTRACT:
A face seal assembly (10) having an intermediate seal ring (38) is disclosed. The intermediate seal ring (38) is disposed between a pair of opposing metal seal faces (36,37) of the seal assembly (10) so that the faces (36,37) contact opposite sealing faces (39,40) on the ring (38), instead of each other. Means (44) are provided for rotating the intermediate seal ring (38) at a speed which is proportionately less than the rotational speed between the opposing seal faces (36,37). This rotation of the intermediate ring (38) reduces the velocities of the contacting seal faces. The face seal assembly (10) is thus capable of use in higher speed applications without incurring scoring of the seal faces.

REFERENCES:
patent: 2554595 (1951-05-01), Smith
patent: 2586739 (1952-02-01), Summers
patent: 2727765 (1955-12-01), Kilpatrick
patent: 3180648 (1963-04-01), Kupfert
patent: 3499653 (1970-03-01), Gardner
patent: 3632120 (1972-01-01), Braudt
patent: 3861765 (1975-01-01), Follert et al.
patent: 4266786 (1981-05-01), Wiese

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