Interface bushing for fluid-to-fluid shaft seal assembly

Details Interface bushing for fluid-to-fluid shaft seal assembly Interface bushing for fluid-to-fluid shaft seal assembly

1975-10-03

1976-09-07

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

F16J 1544

Patent

active

039791289

ABSTRACT:
A seal for use in a fluid-to-fluid shaft seal assembly as conventionally employed in a rotary machine. The seal includes a first and second ring encompassing the shaft and having a bushing seal interposed therebetween. A biasing member is arranged to act against one of the rings and the bushing seal to exert a predetermined force upon the bushing seal whereby the bushing seal is allowed to move radially in compliance with the shaft between the two rings. Radial ports are also provided within the bushing seal to bring fluid into contact with the shaft beneath the bushing, each port having a contoured entrance region to facilitate movement of fluid therethrough and thus insure that a positive seal is formed between the bushing and the shaft.

REFERENCES:
patent: 3321128 (1967-05-01), Fezer et al.
patent: 3484113 (1969-12-01), Moore
patent: 3695621 (1972-10-01), Damratowski et al.

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