Piezo valve

For a piezo valve (1) the sealable surface of the seat (13) of the controllable medium connection is so large that the pressure-induced closing force of the sealing region (14) of the bending element (4) that is generated in accordance with the medium pressure acting in the second switch position is...

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Bibliographische Detailangaben
Hauptverfasser:	FRISCH, HERBERT, WIRTL, JOHANNES
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING ORCONTROL PURPOSES FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	For a piezo valve (1) the sealable surface of the seat (13) of the controllable medium connection is so large that the pressure-induced closing force of the sealing region (14) of the bending element (4) that is generated in accordance with the medium pressure acting in the second switch position is greater than the elastically induced counterforce and smaller than the total of this counterforce and the piezo reset force acting upon application of a corresponding control voltage. Thus, both switch positions of the valve can also be held for a long period of time following pulsed voltage operation without any additional voltage application.