Hydrodynamic bearing with controlled lubricant pressure distribu

Details Hydrodynamic bearing with controlled lubricant pressure distribu Hydrodynamic bearing with controlled lubricant pressure distribu

1995-09-18

1996-05-14

Hannon, Thomas R.

Bearings

Rotary bearing

Fluid bearing

384112, F16C 3706

Patent

active

055162126

ABSTRACT:
A rotating-shaft hydrodynamic bearing assembly adapted for use in a rotating disk data store. The bearing assembly combines a plurality of spaced-apart radial journal bearings with a two-faced axial thrust plate to provide stiffness against runout at high rotational velocities. Fluid pressure is controlled on both sides of every fluid dement by bounding all radial fluid bearing layers and the dual thrust bearing layers with circumferential undercuts coupled to ambient pressure through a plurality of fluid-filled passages in the rotating shaft. Outward-biased surface-relief patterns are disposed in both axial thrust bearing layers to increase hydrostatic pressure and prevent cavitation in the non-bearing thrust-plate peripheral layer. The fluid bearing layers are disposed in a continuous pressure-controlled fluid film sealed at both ends by surface tension, thereby eliminating sources of air-bubble entrapment. Control of air-bubble entrapment and cavitation eliminates both as sources of surface-tension seal leakage and blowout.

REFERENCES:
patent: 4795275 (1989-01-01), Titcomb et al.
patent: 5067528 (1991-11-01), Titcomb et al.
patent: 5112142 (1992-05-01), Titcomb et al.
patent: 5246294 (1993-09-01), Pan
patent: 5284391 (1994-02-01), Diel et al.
patent: 5328271 (1994-07-01), Titcomb
patent: 5358339 (1994-10-01), Konno et al.
patent: 5407281 (1995-04-01), Chen
patent: 5423612 (1995-06-01), Zang et al.

Affiliated with

Also associated with

Rating

Hydrodynamic bearing with controlled lubricant pressure distribu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydrodynamic bearing with controlled lubricant pressure distribu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrodynamic bearing with controlled lubricant pressure distribu will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1892310