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RESEARCH PAPERS

A Face Seal With Circumferential Pumping Grooves and Rayleigh-Steps

[+] Author and Article Information
K. Ikeuchi, H. Mori, T. Nishida

Department of Mechanical Engineering, Kyoto University, Kyoto 606, Japan

J. Tribol 110(2), 313-317 (Apr 01, 1988) (5 pages) doi:10.1115/1.3261612 History: Received February 01, 1987; Online October 29, 2009

Abstract

This paper presents an analysis of a new noncontacting pumping seal. A hydrodynamic lubricating film is maintained due to Rayleigh-steps. If the low pressure side of the seal is filled with a fluid, the fluid can be pumped into the high pressure side by pumping grooves until the shaft speed reaches a limit value. The experimental results confirm the theoretical predictions for lubrication and sealing performance. Due to the high pumping ability in addition to the high stiffness of its hydrodynamic film, the seal can operate without wear and leakage for a high pressure fluid.

Copyright © 1988 by ASME
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