Engine bearing assembly

Details Engine bearing assembly Engine bearing assembly

1989-01-03

1990-11-06

Hannon, Thomas R.

Bearings

Rotary bearing

Antifriction bearing

384476, 384492, 384540, 3849071, F16C 1952, F16C 1906

Patent

active

049681583

ABSTRACT:
A dry rolling element bearing assembly for rotatably mounting a flight vehicle engine shaft to a housing. Rolling elements (such as ball bearings) are positioned between inner and outer races. Stop devices axial position the inner and outer races. A mounting device positions the inner race radially outward from the shaft so as to create a first annular air space between them. The mount has a flexible portion and has a support ring portion which contacts the outer surface of the inner race with a radial interference fit. A similar mounting device positions the outer race radially inward from the housing. Air directing devices direct cooling air impingingly against bearing surfaces.

REFERENCES:
patent: 3269786 (1966-08-01), Diver et al.
patent: 3480342 (1969-11-01), Venable
patent: 3640591 (1972-02-01), Eklund
patent: 4496252 (1985-01-01), Horler et al.
patent: 4500143 (1985-02-01), Kervistin et al.
Technical Report AFAPL-TR-74-77, vol. 1, Aug., 1974, "High Temperature, High Speed, Solid Lubricated Bearing Technology Phase I--Heat Transfer", by Paul R. Bissett.
Lubrication Engineering, vol. 37, No. 7, Jul., 1981, "Operation of an All--Ceramic Mainshaft Roller Bearing in a J--402 Gas--Turbine Engine", G. Hamburg et al.

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