Bearing having micropores, and design method therefor

Details Bearing having micropores, and design method therefor Bearing having micropores, and design method therefor

1997-09-05

2000-04-04

Evans, Geoffrey S.

Electric heating

Metal heating

By arc

384132, 384625, 700166, B23K 2600

Patent

active

060464305

ABSTRACT:
A method for designing bearings, of improved performance, the load-bearing surfaces of which feature micropores about 2 to 10 microns deep and, preferably, aspect ratios on the order of 7 to 20. The hydrodynamic pressure distribution of a suite of bearing surfaces with different micropore geometries and densities is modeled numerically. The load-bearing surfaces of the bearings are fabricated with micropores having the optimal density and geometry determined by the numerical modeling. Conical micropores may be created by single laser pulses, with the pore size and shape controlled by controlling the laser beam profile, the laser beam power, and the optical parameters of the focusing system.

REFERENCES:
patent: 4323401 (1982-04-01), Belke et al.
patent: 4573690 (1986-03-01), Dettart et al.
patent: 4794680 (1989-01-01), Meyerhoff et al.
patent: 4884820 (1989-12-01), Jackson et al.
patent: 4997192 (1991-03-01), Nagai et al.
patent: 5072092 (1991-12-01), Richter et al.
patent: 5080378 (1992-01-01), Kagawa
patent: 5120395 (1992-06-01), Monson et al.
patent: 5137373 (1992-08-01), Ide
patent: 5385409 (1995-01-01), Ide
patent: 5441439 (1995-08-01), Grimm et al.
patent: 5455778 (1995-10-01), Ide et al.
patent: 5473138 (1995-12-01), Singh et al.
patent: 5630953 (1997-05-01), Klink
patent: 5834094 (1998-11-01), Etsion et al.
Pinkus et al, "Theory of Hydrodynamic Lubrication", McGraw-Hill Book Co., Dec. 1961, p. 138.
Etsion, I. et al, "The Effect of Curvature on the Load Carrying Capacity in Eccentric Gas Thrust Bearings", Tribology Trans., 33:293-300, Dec. 1990.
Chilamakuri et al, "Optimization of Asperities for Laser-Textured Magnetic Disk Surfaces", paper given at the ASME/STLE Tribology Conference, San Francisco CA, Oct. 1996.

Affiliated with

Also associated with

Rating

Bearing having micropores, and design method therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bearing having micropores, and design method therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bearing having micropores, and design method therefor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-367244