High temperature lubricating process

Patent · Fri Jan 01 00:00:00 EST 1982

OSTI ID:864143

Taylor, Robert W ^[1]; Shell, Thomas E ^[1]

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1. Livermore, CA

It has been difficult to provide adaquate lubrication for load bearing, engine components when such engines are operating in excess of about 475.degree. C. The present invention is a process for providing a solid lubricant on a load bearing, solid surface (14), such as in an engine (10) being operated at temperatures in excess of about 475.degree. C. The process comprises contacting and maintaining steps. A gas phase (42) is provided which includes at least one component reactable in a temperature dependent reaction to form a solid lubricant. The gas phase is contacted with the load bearing surface. The load bearing surface is maintained at a temperature which causes reaction of the gas phase component and the formation of the solid lubricant. The solid lubricant is formed directly on the load bearing surface. The method is particularly suitable for use with ceramic engines.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4316921
• OSTI ID: 864143
• Country of Publication: United States
• Language: English

Related Subjects

temperature
lubricating
process
difficult
provide
adaquate
lubrication
load
bearing
engine
components
engines
operating
excess
475
degree
providing
solid
lubricant
surface
14
10
operated
temperatures
comprises
contacting
maintaining
steps
gas
phase
42
provided
component
reactable
dependent
reaction
form
contacted
maintained
causes
formation
formed
directly
method
particularly
suitable
ceramic
solid surface
solid lubricant
formed directly
temperature dependent
load bearing
particularly suitable
gas phase
comprises contacting
process comprises
bearing surface
engine components
phase component
/427/60/184/384/