PIEZOELECTRIC ACTUATOR AND PIEZOELECTRIC VALVE

In an invention including: a piezoelectric element (13) which generates, as a displacement, a driving force necessary for an operation of a valve body (12) which is an operating body; a displacement enlarging mechanism (14) including at least a spring element so as to enlarge a displacement of the p...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	Irie, Susumu
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES DEVICES FOR VENTING OR AERATING ENGINE PLANTS IN GENERAL ENGINEERING ELEMENTS AND UNITS FOR PERFORMING MECHANICAL WORK IN GENERAL GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY PERFORMING OPERATIONS STEAM ENGINES TAPS THERMAL INSULATION IN GENERAL TRANSPORTING VALVES WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	In an invention including: a piezoelectric element (13) which generates, as a displacement, a driving force necessary for an operation of a valve body (12) which is an operating body; a displacement enlarging mechanism (14) including at least a spring element so as to enlarge a displacement of the piezoelectric element (13) which acts on the valve body (12); and a driving device (15) which operates the valve body (12) by applying a voltage to the piezoelectric element (13) to extend the piezoelectric element (13), the driving device (15) includes a first filter processing unit (15x) having an inverse function characteristic of a mechanical resonance frequency when operating the displacement enlarging mechanism (14), and is configured to apply, a voltage which reduces the mechanical resonance, to the piezoelectric element (13) through this resonance suppression processing unit (15x).