Hydraulic machine shaft seal with centrifugal removal of sand an

Details Hydraulic machine shaft seal with centrifugal removal of sand an Hydraulic machine shaft seal with centrifugal removal of sand an

1983-06-06

1985-07-16

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 25, 277 67, 277 961, 277135, F16J 1542

Patent

active

045292094

ABSTRACT:
A rotary shaft of a hydraulic machine has a collar projecting radially outwardly therefrom. The rotary shaft and the collar are encased by a casing which carries a seal ring to be pressed against an axial end surface of the collar to form a fluid-tight seal therebetween. The axial end surface of the collar slidingly contacting with the seal ring is provided with a plurality of radial grooves extending from the central portion of the collar to the outer peripheral edge thereof. As the rotary shaft rotates at a high speed, a centrifugal force is generated to separate sand and soil particles from the water within the radial grooves.

REFERENCES:
patent: 1876515 (1932-09-01), Emmet
patent: 3033577 (1962-05-01), Spiess
patent: 3383116 (1968-05-01), Carter
patent: 3527465 (1970-09-01), Guinard
patent: 4082296 (1978-04-01), Stein

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