Patent ID: 6173744
Filing Date: 2001-01-16
Classification: F16K,Y10T

Abstract:
A piezoelectric valve comprisinga housing formed with an internal chamber having a proximal end and a distal end,at least one controllable sealing seat located near the distal end of the interior chamber anda piezoelectric bending element slidably located in a lateral opening in the housing, thereby being inserted into said internal chamber and having a proximal end outside of the internal chamber and a distal portion located within the chamber sealed off from the proximal end of the housing,the free end of the bending element engaging the sealing seat for selectively opening and closing said sealing seat in response to an applied control current,wherein the piezoelectric bending element has sleeved over its distal end, a covering formed of partially elastic insulating material said covering sealingly engaging the housing at the position of its lateral opening.