Foil bearing

Details Foil bearing Foil bearing

1983-11-16

1985-10-29

Levy, Stuart S.

Bearings

Rotary bearing

Fluid bearing

384106, F16C 3206

Patent

active

045498210

ABSTRACT:
The invention relates to a foil bearing for high speed rotation such as a turbocharger, a high speed centrifugal separator or the like. The foil bearing according to the present invention can form at least three wedge-shaped spaces between the rotary shaft and the top foil along the direction of rotation of the rotary shaft. The rotary shaft can be supported by at least three portions of air sucked in the wedge-shaped spaces so that when the rotary shaft is rotated at a high speed, the axial center thereof is kept more adjacent to that of the top foil at all times based on the wedge effect by the air.

REFERENCES:
patent: 3635534 (1972-01-01), Barnett
patent: 3809443 (1974-05-01), Cherubim
patent: 4133585 (1979-01-01), Licht
patent: 4229054 (1980-10-01), Miller, Jr.
patent: 4247155 (1981-01-01), Fortmann
patent: 4262975 (1981-04-01), Heshmat et al.
patent: 4415281 (1983-11-01), Agrawal

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