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RESEARCH PAPERS

Non-Leaking Lip Seals: A Roughness Effect Study

[+] Author and Article Information
K. To̸nder, R. Salant

School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332

J. Tribol 114(3), 595-599 (Jul 01, 1992) (5 pages) doi:10.1115/1.2920922 History: Received February 15, 1991; Revised June 01, 1991; Online June 05, 2008

Abstract

An analysis of roughness effects on leakage of lip seals is presented. The generation of fine axially oriented striations has been seen to occur on some lip seals after a certain time of operation, Müller and Ott (1984). Kammüller (1986) and Müller (1987) have suggested that under running conditions, the striations may be distorted due to differential shear stresses leading to a channelling or pumping action of the grooves. This may balance the flow due to the pressure difference over the seal and thus suppress leakage. The roughness theory of the first author has been combined with the roughness pattern distortion theory of the second author. The resulting model is seen to predict a complete leakage suppression under realistic conditions.

Copyright © 1992 by The American Society of Mechanical Engineers
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