Efficient Use of Directional-Control Valves in Fluid-Logic Circuits

[+] Author and Article Information
D. W. Pessen

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

J. Dyn. Sys., Meas., Control 105(4), 272-278 (Dec 01, 1983) (7 pages) doi:10.1115/1.3140670 History: Received August 06, 1980; Online July 21, 2009


Various types of directional-control valves have been systematically analyzed to determine the logic output functions obtained for different input-signal combinations. It was found that a surprisingly large variety of fairly complex logic functions can be obtained with a single valve. The results are summarized in five tables, which include 186 (i.e., all the significant) input-signal combinations. Several examples are presented, illustrating how the tables can be used to implement given fluid-logic functions with a minimum number of valves. It thus becomes possible to exploit the logic capacity of these valves to their fullest extent, which can result in considerable reduction in number of valves.

Copyright © 1983 by ASME
Topics: Fluids , Valves , Circuits , Signals
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