Shaft seal

Details Shaft seal Shaft seal

1979-11-08

1981-06-16

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 3, 277135, 277203, F16J 1540, F16J 1544

Patent

active

042733430

ABSTRACT:
The present invention relates to a seal of a shaft being rotatable relative to a stationary housing, said shaft being provided with a groove (3, 13), said groove being spiraled such that during rotation of the shaft the groove will pump fluid from the high-pressure side towards the low-pressure side. The shaft portion provided with the helical groove coacts with an abutting flexible sleeve (6) so that the amount of fluid which is allowed to escape in a controlled manner can be determined.

REFERENCES:
patent: 2487177 (1949-11-01), Pollock
patent: 3797962 (1974-03-01), Stahlecker
patent: 3801235 (1974-04-01), Douglas
patent: 3823950 (1974-07-01), Pedersen
patent: 4010960 (1977-03-01), Martin
patent: 4076259 (1978-02-01), Raimondi

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