Bump foil design for improved damping and load capacity from com

Details Bump foil design for improved damping and load capacity from com Bump foil design for improved damping and load capacity from com

1994-12-15

1996-12-17

Footland, Lenard A.

Bearings

Rotary bearing

Fluid bearing

2989802, F16C 1703

Patent

active

055845827

ABSTRACT:
A bump foil for a compliant foil gas bearing having parallel rows of corrugations or bumps, a first series of bumps of equal height spaced equidistant from one another and a second series of bumps of a lesser height with each bump of the second series disposed between bumps of said first series. The bump foil can be fabricated from metals having a thickness greater than that of conventional bump foils to increase load capacity of the gas bearing without sacrificing compliance required for Coulomb damping.

REFERENCES:
patent: 3893733 (1975-07-01), Silver et al.
patent: 4133585 (1979-01-01), Licht
patent: 4167295 (1979-09-01), Glaser
patent: 4208076 (1980-06-01), Gray et al.
patent: 4213657 (1980-07-01), Gray
patent: 4262975 (1981-04-01), Heshmat et al.
patent: 4300806 (1981-11-01), Heshmat
patent: 4415281 (1983-11-01), Agrawal

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