Improved Design With Noncylindrical Profiles of Gas-Lubricated Ringless Pistons

[+] Author and Article Information
I. Etsion, K. Gommed

Department of Mechanical Engineering, Technion, Haifa 32000, Israel

J. Tribol 117(1), 143-147 (Jan 01, 1995) (5 pages) doi:10.1115/1.2830590 History: Received February 07, 1994; Revised June 27, 1994; Online January 24, 2008


This paper describes the results of a search for an optimum profile that will maximize the dynamic stability of gas lubricated ringless pistons. Previous work indicated that the common cylindrical piston design is not the best choice for this purpose. Many noncylindrical profiles were investigated for ringless pistons used in helium gas cryocoolers. An improved design was found that considerably extends the range of stable operation of these systems.

Copyright © 1995 by The American Society of Mechanical Engineers
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