Rotary Lip Seal Operation With an Ingested Meniscus

[+] Author and Article Information
R. F. Salant

School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405

J. Tribol 119(1), 205-210 (Jan 01, 1997) (6 pages) doi:10.1115/1.2832461 History: Received February 21, 1996; Revised June 02, 1996; Online January 24, 2008


Previous numerical simulations and experimental observations have shown that the meniscus in a rotary lip seal will be ingested into the sealing zone when the shaft speed exceeds a critical value. The present numerical analysis shows that once the meniscus is ingested, multiple equilibrium operating points exist, so the steady-state operating characteristics of the seal will depend on the history of the seal as well as on the steady-state operating conditions and seal properties. The analysis also shows that if the meniscus moves too close to the liquid-side of the seal, asperity contact between the lip and the shaft will occur.

Copyright © 1997 by The American Society of Mechanical Engineers
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