High speed shaft seal

Details High speed shaft seal High speed shaft seal

1982-09-28

1984-05-29

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 83, F16J 1534, F16J 1548

Patent

active

044510489

ABSTRACT:
A dynamic shaft seal for bidirectionally sealing fluid flow along a shaft comprising a disc of carbon material positioned between a pair of spaced flat rings mounted for rotation with the shaft. The carbon disc is allowed a range of axial movement forced by a pressure differential across the carbon disc so that the disc can form a contact seal with one or the other of the flat rings. The carbon disc is allowed to float between the flat rings when pressure on opposing sides of the carbon disc are equalized. Means are included to prohibit rotation of the carbon disc with the shaft.

REFERENCES:
patent: 2124526 (1938-07-01), Goldsworthy
patent: 2931783 (1961-02-01), Laser
patent: 4065136 (1977-12-01), Miller
patent: 4114900 (1978-09-01), Wiese
patent: 4289264 (1981-09-01), Rawlins
patent: 4337951 (1982-07-01), Perego

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