Stiffness and Leakage in Spiral Groove Upstream Pumping Mechanical Seals

A numerical analysis of the lubricating film in spiral groove upstream pumping mechanical seals, accounting for the occurrence of cavitation, has been performed. Axial stiffness and leakage rate have been determined as functions of the operating conditions and design parameters. Results indicate tha...

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Bibliographic Details
Published in:Tribology transactions 1993-01, Vol.36 (1), p.55-60
Main Authors: Salant, Richard F., Homiller, Stephen J.
Format: Article
Language:English
Subjects:
Applied sciences
Cavitation
Exact sciences and technology
Face Seals
Hydrodynamic Lubrication
Machine components
Mechanical engineering. Machine design
Mechanical Seals
Seals and gaskets
Spiral Groove Seals
Upstream Pumping
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Summary:A numerical analysis of the lubricating film in spiral groove upstream pumping mechanical seals, accounting for the occurrence of cavitation, has been performed. Axial stiffness and leakage rate have been determined as functions of the operating conditions and design parameters. Results indicate that properly designed spiral groove upstream pumping seals will perform well in a double seal arrangement, with good stiffness characteristics and negative leakage of the buffer fluid. However, results also suggest that such seals will operate poorly as single seals, due to negative stiffness resulting from excessive cavitation. Presented at the 47th Annual Meeting In Philadelphia, Pennsylvania May 4-7, 1992
ISSN:1040-2004
1547-397X
DOI:10.1080/10402009308983132