Valve-Plate Design for an Axial Piston Pump Operating at Low Displacements

[+] Author and Article Information
Noah D. Manring

Mechanical and Aerospace Engineering Department, University of Missouri—Columbia, Columbia, MO 65211

J. Mech. Des 125(1), 200-205 (Mar 21, 2003) (6 pages) doi:10.1115/1.1541632 History: Received August 01, 2001; Revised April 01, 2002; Online March 21, 2003
Copyright © 2003 by ASME
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Zeiger,  G., and Akers,  A., 1985, “Torque on the Swashplate of an Axial Piston Pump,” ASME J. Dyn. Syst., Meas., Control, 107, pp. 220–26.
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Manring, N. D., and Zhang, Y., 2000, “The Improved Volumetric Efficiency of an Axial-Piston Pump Utilizing a Trapped-Volume Design,” Proc. of the ASME Winter Annual Meeting, FPST-Vol. 7, Orlando, FL, pp. 39–47.
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General pump configuration
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A general schematic of slot and porting geometry near top or bottom dead center of the valve plate
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Typical slot geometries that are used within axial-piston pumps
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Control volume for a single piston chamber
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Dimensionless pressure transition for three different slot geometries
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Dimensionless pressure time rate-of-change for three different slot geometries




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