Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
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
Caterpillar Tractor Co.
Pence Oscar G.
Ward, Jr. Robert S.
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