Analysis of Viscous Pumps With Shrouded Rayleigh-Steps Using Compressible Fluid

[+] Author and Article Information
Yuichi Sato

Department of Mechanical Engineering, Saitama University, Urawa, Japan

Kyosuke Ono

Department of Mechanical Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo, Japan

Naoki Moriguchi

Toyota Motor Corporation, Toyota, Aichi Pref., Japan

J. Tribol 110(4), 597-601 (Oct 01, 1988) (5 pages) doi:10.1115/1.3261699 History: Received March 10, 1988; Online October 29, 2009


The paper describes an analysis of viscous pumps with shrouded Rayleigh-steps using compressible fluids. The optimum pump geometry for the maximum flow rate is presented. Frictional torque is examined for the optimized pump geometry. Finally the characteristics of the pump proposed in this paper are compared with those of spiral groove viscous pumps which are frequently used. Consequently the viscous pump with Rayleigh-steps has greater flow rate and higher pressure difference.

Copyright © 1988 by ASME
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