Operating Aspects of an Oil Pumping Ring Seal

[+] Author and Article Information
P. J. Smith

NASA Lewis Research Center, Cleveland, Ohio 44135

T. G. Keith

Department of Mechanical Engineering, The University of Toledo, Toledo, Ohio 43606

J. Tribol 108(2), 275-281 (Apr 01, 1986) (7 pages) doi:10.1115/1.3261176 History: Received April 05, 1985; Online October 29, 2009


Past analyses have left several unanswered questions regarding the operation of a pumping ring seal. This paper addresses some of these unresolved problems. In particular, treatment of the film-ring interfacial boundary condition and the return portion of the pumping cycle are numerically investigated. Further, a simple model is proposed to determine whether or not the seal operates fully flooded.

Copyright © 1986 by ASME
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