Active hybrid FDB motor

Details Active hybrid FDB motor Active hybrid FDB motor

2005-02-09

2008-09-09

Hannon, Thomas R (Department: 3682)

Bearings

Rotary bearing

Fluid bearing

C384S110000, C384S112000

Reexamination Certificate

active

07422371

ABSTRACT:
An active fluid bearing system is provided. In one example, the active fluid bearing system includes an interface region formed between an outer surface of an inner member and an opposing inner surface of an outer member. The inner and outer members are disposed for relative rotation of the inner and outer members, and thereby form an interface region having a hydrodynamic bearing region and an active bearing region. A liquid is disposed in the interface region at the hydrodynamic bearing region, and is further disposed in the active bearing region if the inner and outer members are not relatively rotating. The bearing system is operable for evacuating at least a portion of the liquid from the active bearing region during relative rotation of the inner and outer members. The active bearing region may be a journal bearing or a thrust bearing.

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