Variable speed fluid bearing and method of use

Details Variable speed fluid bearing and method of use Variable speed fluid bearing and method of use

1993-04-02

1995-10-31

Footland, Lenard A.

Bearings

Rotary bearing

Fluid bearing

F16C 3206

Patent

active

054623642

ABSTRACT:
A fluid bearing assembly for rotatably supporting a rotary-driven spindle having smooth bearing surfaces. Each bearing has a stationary housing holding an annular bearing race that presents a smooth continuous bearing surface facing a complementary bearing surface of the spindle; together the race and spindle define a continuous, thin, uniform crevice space. The smooth race bearing surface is interrupted by a plurality of circumferentially spaced pressure generating zones, each capable of dynamically compressing a fluid body contained in the zone into the crevice in either direction of rotation of the spindle at higher speeds. Pressurized fluid is supplied to flow through each zone and out of the crevice while exerting a predetermined hydrostatic force against the spindle at lower rotational speeds.

REFERENCES:
patent: 4490054 (1984-12-01), Kimmelaar
patent: 4693642 (1987-09-01), Mair et al.
patent: 4834559 (1989-05-01), Kalvoda
patent: 4930910 (1990-06-01), Mori et al.
patent: 5010794 (1991-04-01), Klager
patent: 5022769 (1991-06-01), Jacobs et al.

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