Bi-directional foil bearings

Details Bi-directional foil bearings Bi-directional foil bearings

1997-10-15

1999-06-15

Footland, Lenard A.

Bearings

Rotary bearing

Fluid bearing

384105, 384106, F16C 1703

Patent

active

059115106

ABSTRACT:
A foil bearing allows bi-directional rotation of a shaft. The foil bearing includes a plurality of thin compliant foils secured to a housing, and spring segments underlying the foils. Each spring segment has a first stiffness profile in a first zone and a second stiffness profile in a second zone. The first stiffness profile allows rotation in one direction, and the second stiffness profile allows rotation in an opposite direction.

REFERENCES:
patent: 4767222 (1988-08-01), Paletta et al.
patent: 5228785 (1993-07-01), Saville et al.
patent: 5498082 (1996-03-01), Nadjafi
patent: 5549392 (1996-08-01), Anderson

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