Rotor bearing with propeller for increased lubricant flow

Details Rotor bearing with propeller for increased lubricant flow Rotor bearing with propeller for increased lubricant flow

2005-02-22

2005-02-22

Footland, Lenard A. (Department: 3682)

Bearings

Rotary bearing

Fluid bearing

Reexamination Certificate

active

06857781

ABSTRACT:
A pumping system is provided that includes a pump assembly and a motor assembly. The motor assembly has a bearing collar and a bearing sleeve concentric to the bearing collar. Preferably, the bearing sleeve includes at least one propeller blade that is configured to assist the movement of lubricant through the motor assembly. In another preferred embodiment, the motor includes a lubricant channel housed within a centrally located shaft. Lubricant is moved out of the lubricant channel through a shaft port and a blade port disposed in the propeller blade.

REFERENCES:
patent: 4453099 (1984-06-01), Flat
patent: 4513215 (1985-04-01), Del Serra
patent: 4521708 (1985-06-01), Vandevier
patent: 5128573 (1992-07-01), Liu et al.
patent: 5189328 (1993-02-01), Knox
patent: 5713670 (1998-02-01), Goldowsky
patent: 5828149 (1998-10-01), Parmeter et al.
patent: 6091175 (2000-07-01), Kinsinger
patent: 6099271 (2000-08-01), Brookbank
patent: 6109790 (2000-08-01), von Gynz-Rekowski et al.
patent: 6225720 (2001-05-01), Desta
patent: 6250806 (2001-06-01), Beshoory

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