A High-Speed Fuel Lubricated Hybrid Thrust Bearing for Limited-Life Turbine Engines

Format:

Conference/Event

Author/Creator:

Gilbert, Robert B., author.

Conference Name:

Aerospace Technology Conference & Exposition (1990-10-01 : Long Beach, California, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1990

Summary:

The feasibility of operating a mainshaft thrust bearing at high speeds with jet fuel mist as the coolant and lubricant has been demonstrated in both rig and engine testing. A split-inner ring hybrid thrust bearing ( silicon nitride balls ) was successfully operated to 1.67 x 106 DN at maximum Hertzian contact stresses up to 322,000 psi. The bearing configuration also included BG-42 inner and outer rings and a Dupont polyimide Vespel separator. The incorporation of a fuel lubrication system for limited-life turbine engines has many advantages, including;The bearing has been subjected to a variety of hostile tests, including;This paper describes the development history, including rig and engine testing, as well as the analytical challenges overcome in designing the hybrid configuration

Notes:

Vendor supplied data

Publisher Number:

902023

Access Restriction:

Restricted for use by site license