High pressure rotary mechanical seal

Details High pressure rotary mechanical seal High pressure rotary mechanical seal

1977-04-25

1983-10-04

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

F16J 1516, F16J 1540

Patent

active

044075120

ABSTRACT:
A seal for high pressure, large diameter applications wherein three factors, each individually known in the prior art, are combined to provide a seal which is capable of operating in such applications. These factors are (1) a ratio of face width to the inner radius of the face in the range of 0.085 to 0.30; (2) hydrodynamic lift-off pads; and (3) controlled negative rotation of the sealing rings.

REFERENCES:
patent: 2944843 (1960-07-01), Colby
patent: 3499653 (1970-03-01), Gardner
patent: 3957276 (1976-05-01), Wiese

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