Piezoelectric air valve and multiple-type piezoelectric air valve

The air valve includes a valve body for controlling operations to open and close the communication between an air pressure chamber and an air outlet, a piezoelectric element for generating driving force in the form of displacements, and a displacement enlarging mechanism for enlarging the small disp...

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Hauptverfasser: Yano, Takeshi, Higuchi, Toshiro, Kudoh, Kenichi, Chee, Sze Keat, Shibata, Tsunehiko, Ikeda, Norimasa
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creator Yano, Takeshi
Higuchi, Toshiro
Kudoh, Kenichi
Chee, Sze Keat
Shibata, Tsunehiko
Ikeda, Norimasa
description The air valve includes a valve body for controlling operations to open and close the communication between an air pressure chamber and an air outlet, a piezoelectric element for generating driving force in the form of displacements, and a displacement enlarging mechanism for enlarging the small displacements generated by the piezoelectric element by the principle of a pry and applying the enlarged displacements to the valve body. The enlarged displacements cause a large and sufficient gap to be developed between the air pressure chamber and the air outlet when a voltage is applied to the piezoelectric element. When the applying of voltage to the piezoelectric element is stopped, the resetting force of the piezoelectric element itself causes the gap to be closed quickly.
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title Piezoelectric air valve and multiple-type piezoelectric air valve
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