Coning resistant face seal having a "U" shape

Details Coning resistant face seal having a "U" shape Coning resistant face seal having a "U" shape

1996-02-02

1997-05-06

DePumpo, Daniel G.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 81R, 277 91, F16J 1534

Patent

active

056263473

ABSTRACT:
A face seal comprising an annular carbon stator having a flat sealing surface in rubbing contact with a flat sealing surface of an annular metallic rotor. The rotor has a head portion connected to a base portion by a neck portion, that is disposed on the same side of the rotor as the rotor's flat sealing surface. The neck portion has two straight radial surfaces, and is disposed on the same side of the rotor as the rotor's flat sealing surface. The formation of adverse thermal gradients within the rotor can be avoided by adjusting the axial thickness of the neck portion, thereby preventing coning of the rotor.

REFERENCES:
patent: 2586739 (1952-02-01), Summers
patent: 2761712 (1956-09-01), Ecker
patent: 2802679 (1957-08-01), Taltavall
patent: 2992842 (1961-07-01), Shevchenko et al.
patent: 4087097 (1978-05-01), Bossens et al.
patent: 4415165 (1983-11-01), Martini
patent: 5024451 (1991-06-01), Borowski
patent: 5183270 (1993-02-01), Alten et al.

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