Christopher J Klenke

US Patent:

55079610, Apr 16, 1996

Filed:

Jul 18, 1994

Appl. No.:

8/278535

Inventors:

Nelson H. Forster - Dayton OH
James P. King - Lansdale PA
Lewis Rosado - West Carrollton OH
Christopher J. Klenke - South Vienna OH

Assignee:

The United States of America as represented by the Secretary of the Air
Force - Washington DC

International Classification:

C10M10306

US Classification:

252 25

Abstract:

A method for lubricating a ceramic bearing surface which comprises applying a cesium-containing compound selected from the group consisting of Cs. sub. 2 MoO. sub. 4, Cs. sub. 2 SO. sub. 4, Cs. sub. 2 WO. sub. 4, Cs. sub. 2 WOS. sub. 3, Cs. sub. 2 MoOS. sub. 3 and CsOH, to the bearing surface and heating the thus-coated bearing surface to a temperature of about 300. degree. C. or greater. Alternatively, the cesium-containing compound may be applied in admixture with a lower alkali metal silicate. This method is particularly useful for lubricating the bearings in expendable, high temperature turbine engines, such as those used in expendable missiles.

US Patent:

53279980, Jul 12, 1994

Filed:

Sep 18, 1992

Appl. No.:

7/946710

Inventors:

Lewis Rosado - West Carrollton OH
Nelson H. Forster - Dayton OH
Christopher J. Klenke - South Vienna OH

Assignee:

The United States of America as represented by the Secretary of the Air
Force - Washington DC

International Classification:

F16N 730
F01M 500

US Classification:

184 551

Abstract:

System and method for high temperature lubrication of a bearing surface of a movable machine part using lubricant sublimation is described which comprises a source of solid lubricant, a heater disposed in thermal contact with the lubricant for heating the lubricant to sublimation and a conduit for conducting sublimated lubricant vapors into contact with the bearing surface to be lubricated.