Pumping feature on wear sleeve for unitized seal

Details Pumping feature on wear sleeve for unitized seal Pumping feature on wear sleeve for unitized seal

1993-05-19

1994-09-27

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277134, 277152, F16J 1532

Patent

active

053501810

ABSTRACT:
A fluid seal assembly with a primary seal element and a wear sleeve element. The primary seal includes a casing and a seal element that contacts a sealing surface on the wear sleeve. The wear sleeve has a cylindrical portion that overlies a portion of the sealed mechanism, and the cylindrical portion has a surface pattern thereon formed by metal cold flow, preferably by drawing and ironing. The surface pattern includes at least one hydrodynamic pumping element having a contoured portion that is radially offset from the remainder of the cylindrical portion of the sleeve.

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