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RESEARCH PAPERS

Application of Gas Bearings to Closed-System Brayton-Cycle Turbomachinery—Recent Accomplishments and Potential Problem Areas

[+] Author and Article Information
P. W. Curwen, H. F. Jones, H. Schwarz

Mechanical Technology Inc., Latham, N. Y.

J. Eng. Power 88(4), 367-376 (Oct 01, 1966) (10 pages) doi:10.1115/1.3678551 History: Received November 19, 1965; Online January 10, 2012

Abstract

Several development programs to demonstrate application of gas-lubricated bearings to gas turbine machinery are presently under way. This paper presents design and initial test data for a 24,000 rpm, 1300 F (turbine inlet temperature) gas-bearing Brayton-cycle turbocompressor operating in a closed-loop system. The bearing system design for a two-shaft power plant, consisting of a 50,000 rpm, 1490 F turbocompressor and a 12,000 rpm turboalternator, is also described. Test results to date demonstrate that gas lubrication, per se, of gas turbine machinery is definitely feasible. However, considerable data are still needed to prove the practical utility of gas bearings. A brief discussion of the needed investigations is presented.

Copyright © 1966 by ASME
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