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TECHNICAL PAPERS: Gas Turbines: Structures and Dynamics

The Impact of Oil and Sealing Air Flow, Chamber Pressure, Rotor Speed, and Axial Load on the Power Consumption in an Aeroengine Bearing Chamber

[+] Author and Article Information
Michael Flouros

MTU Aero Engines, Air and Oil Systems, Dachauer Strasse 665, 80995 Murich, Germanye-mail: Michael.flouros@muc.mtu.de

J. Eng. Gas Turbines Power 127(1), 182-186 (Feb 09, 2005) (5 pages) doi:10.1115/1.1805009 History: Received May 30, 2003; Revised January 15, 2004; Online February 09, 2005
Copyright © 2005 by ASME
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References

Figures

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(a) Schematic of the ball bearing showing the oil supply via front and rear nozzle. (b) Bearing test facility.
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Bearing power consumption characteristic as a function of the oil flow at 10,000 rpm, 14.7 kN axial load, 1.1 bar chamber pressure, and 130°C oil and air temperature
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Power consumption as a function of the air flow for two different oil flows
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Power consumption as a function of the air and oil flow at 80°C and 130°C
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Power consumption as a function of the bearing chamber pressure
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Power consumption as a function of the rotational speed, air and oil flow, and chamber pressure
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Impact of axial load on bearing power consumption at different air flows

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