Supersonic externally pressurized gas bearing

Details Supersonic externally pressurized gas bearing Supersonic externally pressurized gas bearing

1983-02-02

1984-12-04

Levy, Stuart S.

Bearings

Rotary bearing

Fluid bearing

384121, F16C 1702, F16C 1704

Patent

active

044861052

ABSTRACT:
In an externally pressurized gas bearing used as a thrust or a journal bearing, the shape of a gap formed therein is selected so that the gas flowing velocity reaches the sound velocity in a predetermined position within the gap and a supersonic gas flow is maintained at the outer edge of the bearing, whereby an increase in supply gas pressure gives rise to a corresponding increase in load capacity and rigidity.

REFERENCES:
patent: 3801165 (1974-04-01), Lombard
patent: 4232913 (1980-11-01), Nilsson
Externally pressurized bearings, Stout and Rowe, Tribology International, 1974.
Paper titled "A Theoretical Investigation of Pressure Depression in Externally Pressurized Gas-Lubricated Circular Thrust Bearings" by Haruo Mori presented at lecture held on Apr. 3, 1960, published Sept., 1960, pp. 1249-1258.
Paper title "Observation of Compressible Flow Between Circular and Parallel Plates", by Haruo Mori et al., published 1965, pp. 435-441.
Article titled "Theoretical and Experimental Pressure Distribution in Supersonic Domain for an Inherently Compensated Circular Thrust Bearing", by M. Poupard et al., Journal of Lubrication Technology, Apr. 1973, pp. 217-221.

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