Hydrostatic air bearing with a porous metal ring

Details Hydrostatic air bearing with a porous metal ring Hydrostatic air bearing with a porous metal ring

2005-10-18

2008-09-30

Hannon, Thomas R (Department: 3682)

Bearings

Rotary bearing

Fluid bearing

C384S279000, C384S901000, C384S902000

Reexamination Certificate

active

07429132

ABSTRACT:
A hydrostatic air bearing in which a journal rotates within a cavity formed within a bearing race, and a sleeve that rotates with the journal within the cavity of the bearing race, where the sleeve is formed of a porous metallic material that allows for a bearing fluid such as air to flow from a high pressure side of the journal to a low pressure side of the journal through the porous sleeve that acts to dampen the bearing fluid flow, and therefore dampen the bearing. Another embodiment is for a hydrodynamic air bearing with an annular sleeve arranged between the rotating journal and the bearing race, where the annular sleeve is formed of a porous metallic material to dampen air flow across the journal.

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patent: 2005/0051975 (2005-03-01), Takayama et al.

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