Patent ID: 7056096
Filing Date: 2006-06-06
Classification: F04B

Abstract:
1. A pump for use with a working fluid, comprising: a moving wall; an actuator to change a position of the moving wall; a driving device to control activation of the actuator; a pump chamber having a capacity that can be varied by the displacement of the moving wall; a suction channel for admission of the working fluid into the pump chamber; and a discharge channel for delivery of the working fluid from the pump chamber, the discharge channel being opened to the pump chamber during operation of the pump, a combined inertance of the suction channel being lower than a combined inertance of the discharge channel; the suction channel including a fluid resistive element having a fluid resistance during the inflow of the working fluid into the pump chamber that becomes lower than a fluid resistance during the outflow; and the driving device including a cycle control device which controls a start of a next cycle of the motion of the moving wall after completion of a previous cycle of the motion of the moving wall.