Bearing assembly and centering support structure therefor

Details Bearing assembly and centering support structure therefor Bearing assembly and centering support structure therefor

2005-09-28

2009-12-01

Charles, Marcus (Department: 3656)

Bearings

Rotary bearing

Hydraulic or pneumatic bearing support

C384S117000, C384S122000

Reexamination Certificate

active

07625121

ABSTRACT:
The bearing assembly includes an annular bearing in which the shaft is disposed and a support structure for supporting the bearing. The bearing support is mounted about and radially supports the bearing. The bearing support at least in part defines a squeeze film annulus of the bearing assembly. A plurality of centering elements is associated with the bearing and bearing support and act to center the bearing within the squeeze film annulus. The centering elements are provided at radially spaced locations around the bearing. The centering elements may also be cylinder springs provided at uniformly spaced locations around the bearing. The centering elements may additionally be load cell springs provided at uniformly spaced locations around the bearing. In an alternative embodiment, a singular annular wave spring may be provided in place of the plurality of centering elements.

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Edney, Stephen L.; “Retrofitting a Large Steam Turbine with a Mechanically Centered Squeeze Film Damper”; Proceedings of the 28thTurbomachinery Symposium, Texas A & M University, 1999.

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