Labyrinth seal having a pressure inducing fan means

Details Labyrinth seal having a pressure inducing fan means Labyrinth seal having a pressure inducing fan means

1995-05-17

1997-03-18

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 53, 277 67, F16J 15447

Patent

active

056115466

ABSTRACT:
A shaft sealing system for an oil-lubricated shaft bearing in a stationary, externally closed housing filled with liquid vapor may include a shaft projecting into the housing which is mounted in the shaft bearing. The shaft bearing is sealed by means of a sealing arrangement. Sealing of the oil-lubricated shaft bearing that is improved and, in particular, independent of external air supply, is achieved by a counterpressure fan. The counterpressure fan generates a dynamic pressure directed against the sealing arrangement by drawing in outside air, and is held nonrotatably on the shaft on the side of the sealing arrangement facing away from the housing. The sealing arrangement has a flow channel corresponding to the counterpressure fan.

REFERENCES:
patent: 1463018 (1923-07-01), Junggren
patent: 2188856 (1940-01-01), Chievitz
patent: 3731940 (1973-05-01), Spruiell
patent: 4560172 (1985-12-01), Zimmermann et al.
patent: 4743034 (1988-05-01), Kakabaker et al.
patent: 5238166 (1993-08-01), Schwarstein et al.

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