Florian Meßner, Rudolf Scheidl,
"Development and Experimental Results of a Small Fast Switching Valve Derived from Fuel Injection Technology"
, in Janne Uusi-Heikkilä & Matti Linjama: Proceedings of The Eight Workshop on Digital Fluid Power, May 24-25, 2016, Tampere, Finland, in Proceedings of the Eight Workshop on Digital Fluid Power, Tampere University of Technology - Department of Intelligent Hydraulics and Automation, Tampere, 5-2016
Development and Experimental Results of a Small Fast Switching Valve Derived from Fuel Injection Technology
Sprache des Titels:
Proceedings of The Eight Workshop on Digital Fluid Power, May 24-25, 2016, Tampere, Finland
This paper discusses the development of a valve as an experimental platform for the testing of hydraulic switching control in the low power, fast response and high precision domain. An exemplary application for such systems could be the actuation of automotive wet clutches, in particular of dual clutch systems. The nominal flow rates are in the tenth of litres per minute at 5 bar pressure loss range, pressures might typically go up to two hundred bars.
The valve development is based upon an electromagnetic actuation system derived from common rail injection technology. Samples of such magnetic actuation systems, originally developed and used in common rail systems for truck engines, have been granted to the authors. Those samples were integrated into an appropriate valve design, incorporating ball type seat valves. The valve design was modified to fit the requirements for the envisaged application domains. A housing was designed to encapsulate two valves, for in- and outflow respectively. Furthermore, an appropriate system for generating the required valve current feed had to be set up.
The valves have been tested to evaluate their performance. Sufficient flow rate could be achieved with a valve stroke of only 50 ?m, allowing for a valve operation up to frequencies of 1 kHz, not permanently, but for a period of some seconds. With such high frequencies a very fast but still reasonably accurate control of low power drives can be accomplished. This is demonstrated for the pressure control of a small cylinder.
Sprache der Kurzfassung:
Proceedings of the Eight Workshop on Digital Fluid Power
Tampere University of Technology - Department of Intelligent Hydraulics and Automation