Properties of pressure reinforced compact EHD pump

The EHD pump which was composed of the square parallel plate electrodes with a circular hole in the central part was designed to generate the high pressure head. The properties of the generated pressure head PE and corresponding current I were examined as a function of the applied voltage V using hydrofluoroether (HFE7600). The mechanisms of conduction pumping and ion-drag pumping participate in the generated pressure. The maximum pressure head achieved is approximately 35 kPa at 16 kV for twenty pairs of electrodes with 0.5 mm hole and the electric power consumption is 1.15 W.