This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Metered Leakage Prediction for Reciprocating Valve Stem Seals
Technical Paper
1999-01-0884
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The development of any sealing product invariably involves some form of physical leakage testing, and although this evaluates the performance of the product, it gives no insight to the fundamental sealing mechanism of the design. Elastohydrodynamic lubrication theory was used to study this problem. The study of hydrodynamic lubrication, where there is fluid flow, is, from a mathematical standpoint, the application of a reduced form of the Navier-Stokes equation with the continuity equation. This equation is well known as the Reynolds equation. However, normally, the Reynolds equation is derived from Cartesian co-ordinates where the curvatures of surfaces are ignored. However, a valve stem seal (VSS) works in an axisymmetric environment. This paper discusses the development of the elastohydrodynamic lubrication theory in a cylindrical co-ordinate system and its usefulness in the prediction of metered leakage across a valve stem seal.
Recommended Content
Authors
Topic
Citation
Pham, D., Wang, J., Fern, G., and Mason-Jones, A., "Metered Leakage Prediction for Reciprocating Valve Stem Seals," SAE Technical Paper 1999-01-0884, 1999, https://doi.org/10.4271/1999-01-0884.Also In
References
- Hooke C. J. Donoghue J. P. Elastohydrodynamic lubrication of soft, highly deformed contacts Journal Mechanical Engineering Science 1972 34 48 14 1
- Szeri A. Z. Tribology: Friction, Lubrication and Wear Washington, London: Hemisphere 1980
- Tritton D. J. Physical Fluid Dynamics Second Oxford Science Publications 1988
- Hamrock B. J. Fundamentals of Fluid Film Lubrication McGraw-Hill. New York Publication 1994
- Batchelor G. K. An introduction to Fluid Dynamics Cambridge University Press Cambridge, UK 1970
- Cameron A. Mc. Ettles C. M. Basic Lubrication Theory 3rd Ellis Horwood 1981
- Dowson D. Higginson G. R. Archard J. F. Crook A. W. Elastohydrodynamic Lubrication SI Edition Pergamon Press 1977