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RESEARCH PAPERS

Analysis and Design of a Uniform-Clearance, Pumping-Ring Rod Seal for the Stirling Engine

[+] Author and Article Information
I. Etsion

Dept. of Mechanical Engineering, Technion, Israel Institute of Technology, Haifa, Israel

J. Mech. Des 103(1), 67-72 (Jan 01, 1981) (6 pages) doi:10.1115/1.3254886 History: Received July 01, 1980; Online November 17, 2009

Abstract

A uniform-clearance pumping ring, as opposed to the conventional taper-clearance one, is described. The uniform-clearance concept eliminates complex elastohydrodynamic problems and enables a simple analytical treatment to be made. An analytical expression is derived for the pumping rate showing the effect of various design parameters on the pumping ring’s performance. An optimum clearance is found by which the pumping rate is maximized and a numerical example is presented to demonstrate the potential of the uniform-clearance design.

Copyright © 1981 by ASME
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