This paper aims at a theoretical explanation of the following two experimental observations of radial lip seals: fluid film formation and upstream pumping action. The origins of these observations are still poorly understood. A hydrodynamic analysis is presented for the fully flooded contact zone of a smooth shaft surface running against a rough seal surface. Four roughness structures are considered: one-dimensional sinusoidal and two-dimensional sinusoidal seal roughness structures both without and with a tangential seal surface displacement. The tangential seal surface displacement is chosen asymmetric with the axial position in the contact. It follows that the tangential deformation of the one- and two-dimensional seal roughness structures used in this paper can explain the aforementioned experimental observations and simulate the observed order of magnitude of load-carrying capacity, pump rate, and friction torque found in the literature.
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April 1996
Research Papers
Upstream Pumping of Radial Lip Seals by Tangentially Deforming, Rough Seal Surfaces
P. G. M. Van Bavel,
P. G. M. Van Bavel
Department of Mechanical Engineering, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, Netherlands
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T. A. M. Ruijl,
T. A. M. Ruijl
Department of Mechanical Engineering, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, Netherlands
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H. J. Van Leeuwen,
H. J. Van Leeuwen
Department of Mechanical Engineering, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, Netherlands
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E. A. Muijderman
E. A. Muijderman
Department of Mechanical Engineering, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, Netherlands
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P. G. M. Van Bavel
Department of Mechanical Engineering, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, Netherlands
T. A. M. Ruijl
Department of Mechanical Engineering, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, Netherlands
H. J. Van Leeuwen
Department of Mechanical Engineering, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, Netherlands
E. A. Muijderman
Department of Mechanical Engineering, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, Netherlands
J. Tribol. Apr 1996, 118(2): 266-275 (10 pages)
Published Online: April 1, 1996
Article history
Received:
November 18, 1994
Revised:
June 28, 1995
Online:
January 24, 2008
Citation
Van Bavel, P. G. M., Ruijl, T. A. M., Van Leeuwen, H. J., and Muijderman, E. A. (April 1, 1996). "Upstream Pumping of Radial Lip Seals by Tangentially Deforming, Rough Seal Surfaces." ASME. J. Tribol. April 1996; 118(2): 266–275. https://doi.org/10.1115/1.2831295
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