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RESEARCH PAPERS

Performance Characteristics of Shrouded Rayleigh-Step and Spiral Groove Viscous Pumps

[+] Author and Article Information
Yuichi Sato, J. D. Knight

Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27706

J. Tribol 114(3), 499-503 (Jul 01, 1992) (5 pages) doi:10.1115/1.2920911 History: Received February 20, 1991; Revised June 01, 1991; Online June 05, 2008

Abstract

In this paper the optimum geometrical configurations of a shrouded Rayleigh-step and a spiral groove viscous pump are analyzed. Then their performance characteristics are compared. The geometries and film shapes of these viscous pumps are optimized with respect to flow rate and the design parameters are summarized graphically. The flow rate of the optimized spiral groove viscous pump is approximately 5–10 percent greater than that of the optimized shrouded Rayleigh-step viscous pump.

Copyright © 1992 by The American Society of Mechanical Engineers
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