Capillary reservoir for FDB motors

Details Capillary reservoir for FDB motors Capillary reservoir for FDB motors

2005-06-16

2008-08-26

Hannon, Thomas R (Department: 3682)

Bearings

Rotary bearing

Fluid bearing

C384S100000, C384S114000

Reexamination Certificate

active

07416341

ABSTRACT:
For a motor having fluid dynamic bearing(s) defined by surfaces of relatively rotatable motor members, aspects include providing a capillary reservoir between relatively irrotatable surfaces. The capillary reservoir may comprise a tapering gap that is vented to a gaseous environment through one end of the gap and is in fluidic communication with the fluid dynamic bearing(s) through another end of the gap. The gap may be axial, and the capillary reservoir may be disposed coaxially with one or more of the fluid dynamic bearing(s) about an axis of rotation. The capillary reservoir may extend from proximate a top portion of the motor to proximate a bottom portion of the motor.

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