Modeling and Designing a Variable-Displacement Open-Loop Pump

[+] Author and Article Information
N. D. Manring

Hydrostatic Machines, Sauer-Sundstrand, Ames, IA 50010

R. E. Johnson

Mechanical Engineering and Engineering Science, The University of North Carolina, Charlotte, NC 28223

J. Dyn. Sys., Meas., Control 118(2), 267-271 (Jun 01, 1996) (5 pages) doi:10.1115/1.2802313 History: Received May 23, 1994; Online December 03, 2007


This study develops closed-form equations that may be used to guide the up-front design of a variable-displacement pump. In particular, the initial design of the control actuation system and the controller flow-gain is considered. A dynamic model of the pumping system is also presented and the dynamic effect of parameter variations such as actuator volume, discharge-hose volume, controller flow-gain and system leakage is discussed.

Copyright © 1996 by The American Society of Mechanical Engineers
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