Sealing of a shaft in a centrifugal pump and a method for effect

Details Sealing of a shaft in a centrifugal pump and a method for effect Sealing of a shaft in a centrifugal pump and a method for effect

1983-06-17

1984-07-17

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 27, 277 67, 277 83, 277135, F16J 1540, F16J 1546

Patent

active

044601808

ABSTRACT:
A sealing of a centrifugal pump shaft. When the pump is at rest, the sealing is effected mechanically between surfaces with the aid of loading means, a sealing surface and a packing, and when the pump is in operation, the sealing is effected by means of a hydrodynamically effected fluid ring of the fluid being pumped, formed by means of auxiliary blades which are separate in relation to the impeller.

REFERENCES:
patent: 770600 (1904-09-01), Morcom
patent: 2270811 (1942-01-01), Leonard
patent: 3068801 (1962-12-01), Murray
patent: 3395645 (1968-08-01), Vilet
patent: 3731940 (1973-05-01), Spruiell
patent: 3947044 (1976-03-01), Friedrick
patent: 4076260 (1978-02-01), Legoy et al.

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