Self-pressurizing gas supported surface-roughness bearing

Details Self-pressurizing gas supported surface-roughness bearing Self-pressurizing gas supported surface-roughness bearing

1990-07-16

1991-05-28

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 90, 384100, 384276, 384625, F16C 1704, F16C 3906, H02K 516, H02K 709

Patent

active

050197380

ABSTRACT:
A self-pressurizing gas supported bearing includes a cylindrical bearing sleeve having a longitudinal axis and a cylindrical inner surface forming a first bearing surface with a random surface texture having a first R.sub.a roughness profile. A cylindrical bearing shaft is positioned coaxially within the bearing sleeve and includes a cylindrical outer surface forming a second bearing surface with a random surface texture having a second R.sub.a roughness profile. The sum of the first and second R.sub.a roughness profiles falls within the range of from about eighteen to sixty. A drive system establishes a relative rotational velocity between the bearing sleeve and the bearing shaft, generating a bearing stiffness force which causes the overlapping bearing surfaces to lift off and break contact. The bearing sleeve and shaft are dimensioned to maintain a predetermined means spacing between the sleeve and shaft. The bearing may also take the form of a linear bearing or other cylindrical configurations.

REFERENCES:
patent: 3284144 (1966-11-01), Moore et al.
patent: 3899223 (1975-08-01), Baermann
patent: 4487514 (1984-12-01), Mori
patent: 4538081 (1985-08-01), Kamiya et al.
patent: 4552417 (1985-11-01), Yamashita et al.
patent: 4820950 (1989-04-01), Hijiya et al.
patent: 4973068 (1990-11-01), Lebeck
Article by J. W. White from the Jan. 1983 Journal of Lubrication Technology, vol. 105/131, entitled "The Effect of Two-Sided Surface Roughness On Ultra-Thin Gas Films", pp. 131-137.
Paper No. 20, by M. J. Devine, et al., entitled "Solid Lubricants" received at the Institution of Mechanical Engineers on May 15, 1967; pp. 1-9.

Affiliated with

Also associated with

Rating

Self-pressurizing gas supported surface-roughness bearing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self-pressurizing gas supported surface-roughness bearing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-pressurizing gas supported surface-roughness bearing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-37048