Fast switching pneumatic valves: experimental bench for flow and pulsed air jet characterizations

Thiago Ferreira
Laboratoire Ampère, Universitå de Lyon, Lyon, France

Sylvie Sesmat
Laboratoire Ampère, Universitå de Lyon, Lyon, France

Eric Bideaux
Laboratoire Ampère, Universitå de Lyon, Lyon, France

Fabien Sixdenier
Laboratoire Ampère, Universitå de Lyon, Lyon, France

Ladda ner artikelhttp://dx.doi.org/10.3384/ecp1392a45

Ingår i: 13th Scandinavian International Conference on Fluid Power; June 3-5; 2013; Linköping; Sweden

Linköping Electronic Conference Proceedings 92:45, s. 457-464

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Publicerad: 2013-09-09

ISBN: 978-91-7519-572-8

ISSN: 1650-3686 (tryckt), 1650-3740 (online)


This paper presents a new experimental bench which allows the characterization of different fast switching valves in terms of flow rate and free air jet generation. By using this new tool; it is possible to study the different phenomena that may occur in the inner and outer circuit from the source up to free jet. The different sensors strategically positioned allow the determination of the flow characteristics of the valve as well as the dynamic behavior of the component on the generation of the pulsed air jets. By the tests performed with a fast spool-sleeve valve; it was possible to determine its conductance curve as well as its critical pressure ratio. These values obtained were used to build an average mass flow rate curve which is compared to the one measured by using a flowmeter during dynamic tests. The next step consist on exploring the jet in a 3D space by means of a 5-hole probe which provides the information on pressure; temperature and velocity necessary to determine the most suitable zone to perform object manipulation with the jet. Also its unsteady behavior can be observed allowing the identification of frequency limits in which the jet efficiency starts to decrease.


Fast switching; pneumatic valve; pulsed air jet; mass flow rate characterization


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