Method and apparatus for increasing the buffer volume in a...

Details Method and apparatus for increasing the buffer volume in a... Method and apparatus for increasing the buffer volume in a...

2006-08-09

2010-10-26

Leung, Quyen (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C384S107000, C384S112000, C360S099080

Reexamination Certificate

active

07821167

ABSTRACT:
An apparatus and method for increasing the buffer volume in a fluid dynamic bearing is disclosed. One embodiment provides a thrust washer coupled with a shaft of a fluid dynamic bearing. In addition, at least one groove is provided on an outward facing side of the thrust washer. In so doing, the at least one groove increases a fluid capacity of the capillary buffer of the fluid dynamic bearing without requiring a change in the size or shape of a capillary buffer of the fluid dynamic bearing.

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patent: 2005-351421 (2005-12-01), None

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