Patent
Title

Piezoelektrisch betaetigtes Mikroventil

Other Title
Piezoelectrically actuated micro-valve e.g. for control of gas- and liquid-flows in motor vehicle engineering fluid technology - has valve element displaced perpendicularly by flexure of mounting attached to piezoelectric drive exhibiting length variation in response to applied voltage.
Abstract
The microvalve has a base body (34) with a flow opening controlled by a valve element (14), supported by a mounting (12) associated with a piezoelectric drive (10), supplied with an operating voltage for opening or closing the valve. The operating drive exhibits a variation in length between the opposite ends to which the mounting are attached in response to the applied voltage, causing flexure of the mounting for movement of the valve element in the perpendicular direction. The mounting is secured to the base body at two spaced points to allow free rotation of the valve element. USE - For automobile applications. ADVANTAGE - Reduced overall size.
Inventor(s)
Kluge, S.
Woias, P.
Link to:
Patent Number
1996-19648730
Publication Date
2001
Language
German