Low energy tandem seal

Details Low energy tandem seal Low energy tandem seal

1979-10-01

1981-01-06

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 27, 277 53, 277 65, 277134, F16J 1534, F16J 1540

Patent

active

042432308

ABSTRACT:
This invention is directed to a low energy tandem seal which includes an end face seal cooperatively interconnected to a dynamic seal for sealing the circumferential space between a housing and a shaft. Under static non-operating conditions, the end face seal precludes fluid loss from the housing. Upon rotation of the shaft, the low energy dynamic seal provides fluid pressure which opposes loss of fluid from the housing and which disengages the end face seal to avoid a loss of energy and to reduce wear.

REFERENCES:
patent: 3026112 (1962-03-01), Mayer
patent: 3213798 (1965-10-01), Carswell
patent: 3558238 (1971-01-01), Van Herpt
patent: 3746350 (1973-07-01), Mayer et al.
patent: 3937477 (1976-02-01), Gyory

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