Patent ID: 6986500
Filing Date: 2006-01-17
Classification: F15C,F16K,Y10T

Abstract:
1. An electrostatic microvalve comprising a partition separating a first and second valve chamber from each other and having a through duct extending through it, such through duct opening at a first and, respectively, a second duct opening into the first and, respectively, the second valve chamber, and furthermore comprising a valve member arranged in the first valve chamber, which by means of an electrostatic drive is able to be switched over between an open position clear of the first duct opening thereby permitting a transfer of fluid from the second valve chamber into the first valve chamber, and a closed position closing the first duct opening, wherein in the second valve chamber a control member is arranged associated with the second duct opening and able to be actuated by a further electrostatic drive, such control member being able to be moved, while the valve member assumes its open position, from a neutral position freeing the second duct opening into a control position at least partly closing the second duct opening in order to reduce the flow force acting on the valve member to facilitate switching over of the valve member into the closed position.