Enhanced Fuel-Lubricated Bearing for Turbine Engine Applications

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$749,661.00
Award Year:
2008
Program:
SBIR
Phase:
Phase II
Contract:
FA8650-08-C-2848
Award Id:
82147
Agency Tracking Number:
F071-184-1878
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
209 Puente Ave., City of Industry, CA, 91746
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
026249487
Principal Investigator:
Wei Shih
President
(626) 369-1273
weishih@aol.com
Business Contact:
Wei Shih
President
(626) 369-1273
weishih@aol.com
Research Institution:
n/a
Abstract
There is a constant need to reduce the size and part counts of state-of-the-art (SOA) turbine engines. One already demonstrated solution, which offers significant weight and cost payoffs, uses advanced fuel-lubricated (fuel-lubed) bearing. The challenge associated with fuel lubrication is that the fuel does not provide nearly as much lubricity to the bearing components as the traditional oil lubrication does. As a result, fuel-lubed hybrid bearings typically use advanced self-lubricating, fuel compatible C-C cages and Si3N4 rolling elements to reduce bearing heat generation and to improve overall bearing performance. To further improve the bearing performance, particularly when the engine bearings are required to operate at extreme conditions of load, speed, and temperature, antiwear additive has to be added to fuel to enhance its tribological properties. In this program, we propose to better understand the fundamental tribological behavior of friction pairs under fuel lubrication, and to develop enhanced concepts addressing performance and reliability issues related to fuel-lubricated bearings for both short and long term applications.

* information listed above is at the time of submission.

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