Eugenio Leati, Rudolf Scheidl, Andreas Plöckinger,
"On the Dynamic Behavior of Check Valves for High Frequency Oscillation Pumps"
, in ASME: Proc. of the ASME/BATH 2013 Symposium on Fluid Power & Motion Control - FPMC2013, October 6-9, 2013, Sarasota, Florida, USA, 10-2013
On the Dynamic Behavior of Check Valves for High Frequency Oscillation Pumps
Sprache des Titels:
Proc. of the ASME/BATH 2013 Symposium on Fluid Power & Motion Control - FPMC2013, October 6-9, 2013, Sarasota, Florida, USA
Fast check valves play a key role in digital hydraulics and high frequency oscillation pumps (HFOP); in these applications check valves with very short response times in the order of hun-
dreds of microseconds are required. This paper presents a study on the dynamics of two different types of check valves, namely a ball valve available from the market and a plate valve designed specifically for a novel HFOP. A high frequency pumping cycle using such valves has been simulated mathematically in Matlab/Simulink for different working conditions. The same was re-
produced physically by means of a test rig specifically designed for testing high frequency valve dynamics. The comparison between simulated and experimental results shows the influence of
valve design (e.g. geometry of moving element) as well as fluid propagation effects on the dynamics of the process. The volumetric efficiency of the pumping cycle resulting from the collected
data is a major input for the design of the valve for the specific HFOP application.