Self-compensating seal for a rotating shaft

Details Self-compensating seal for a rotating shaft Self-compensating seal for a rotating shaft

1989-01-03

1991-02-26

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 81R, 277 81S, 277 94, 277192, F16J 1534, F16J 1554, F16J 1500

Patent

active

049956205

ABSTRACT:
A self-compensating seal for a rotating shaft includes a seal ring (13) having a plurality of trapezoidal and/or triangular shaped seal sections (15). A ring housing (22) is affixed to a shaft (12) and engages the inside trailing edge (20) of the seal ring (13). Means (30, 31) are provided to prohibit circumferential rotational movement of the seal ring (13) within the ring housing (22). The ring housing (22) and the seal ring (13) rotate with the shaft (12). The centrifugal forces generated by the rotation causes the seal sections (15) to move outward from the ring housing (22) and toward a wear plate (24). Engagement of the outside leading edge (21) of the seal ring (13) and the wear plate (24) perfects the seal.

REFERENCES:
patent: 132361 (1872-10-01), Furness
patent: 391991 (1888-10-01), Tripp
patent: 509803 (1893-11-01), Hagmann
patent: 1735466 (1929-11-01), Le May
patent: 2784013 (1957-03-01), Groen
patent: 3139233 (1964-06-01), Simonsen
patent: 3179334 (1965-04-01), Sharples
patent: 3268157 (1966-08-01), Frenzel
patent: 3502343 (1970-03-01), Pustelnik
patent: 3811688 (1974-05-01), Smith
patent: 4202554 (1980-05-01), Snell
patent: 4398725 (1983-08-01), Maegawa
patent: 4752077 (1988-06-01), Hoffelner
Marks' Standard Handbook for Mechanical Engineers, Eighth Edition, McGraw-Hill Book Company, New York.

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