Andreas Plöckinger, Rudolf Scheidl, Bernd Winkler,
"Fast Development and Rapid Prototyping of a Compact Fast 3/2 Way Switching Valve"
: Proceedings of the 20th International Conference on Hydraulics and Pneumatics, Prague, Czech Republic, Seite(n) 137-143, 9-2008
Fast Development and Rapid Prototyping of a Compact Fast 3/2 Way Switching Valve
Sprache des Titels:
Proceedings of the 20th International Conference on Hydraulics and Pneumatics, Prague, Czech Republic
A fast 3/2 way solenoid actuated spool type switching valve and its fast development and rapid prototyping are presented. The valve features a very compact design for ease of integration, a nominal flow rate of 10 l/min @ 5 bar pressure loss, a switching time of
approximately 1 ms, a powerful yet compact solenoid, and an integrated wave spring for spool actuation.
The valve?s switching performance, in particular the magnetic force characteristics, were
studied by extensive simulations. For a first feasibility check of the design, the valve was
manufactured in ABS (Acrylnitril-Butadien-Styrol) by a 3D printer. To check the achievable
switching time, the spool was manufactured in steel and the magnet as a laminated stack with
a copper winding. The other valve components, however, were taken from the 3D printer plastic realization. First tests confirmed the concept, but showed that a somewhat larger
magnet is required to achieve the intended short switching times.