Lubricants for Inerted Lubrication Systems in Engines for Advanced Aircraft Lewis Research Center, NASA

Format:

Conference/Event

Author/Creator:

Loomis, William R., author.

Conference Name:

National Air Transportation Meeting (1968-04-29 : New York, New York, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1968

Summary:

The feasibility of using presently available liquid lubricants in advanced, high speed aircraft engines has been investigated with a recirculating inerted lubrication system. Three fluids performed satisfactorily for short durations of 3-10 hr in a full-scale simulated aircraft bearing and seal assembly at an outer race bearing temperature of 700 F and with a bulk fluid temperature of 500 F. The principal problem has been with excessive leakage of the oil side bellows face seals which has accounted for a majority of the test terminations. With only one lubricant (a MIL-L-7808E oil) could bearing failure be blamed on a lack of lubricating ability. An inerted oil mist once-through system was also tested, but with less promising results with only one lubricant running successfully at 600 F bearing temperature. The mist system appears to be limited by its inability to maintain stable bearing temperatures and requires further development

Notes:

Vendor supplied data

Publisher Number:

680317

Access Restriction:

Restricted for use by site license