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RESEARCH PAPERS: Additional Technical Papers

An Optimum Stepped Piston for Cylinders Working With Compressible Fluid

[+] Author and Article Information
I. Etsion

Department of Mechanical Engineering, Technion—Israel Institute of Technology, Haifa, Israel

J. Fluids Eng 98(3), 494-498 (Sep 01, 1976) (5 pages) doi:10.1115/1.3448382 History: Received June 29, 1976; Online October 12, 2010

Abstract

A stepped piston, enclosed within a tight circular cylinder of uniform bore and subjected to unequal upstream and downstream boundary pressures, is analyzed for the case of a compressible fluid. Performance characteristics are given for small eccentricity and high boundary pressure ratio as a function of step size and location, and a design parameter that relates the leakage and the centering force is defined. It is shown that piston performance can be optimized by suitable step design.

Copyright © 1976 by ASME
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