| 摘要 |
PURPOSE:To obtain a control valve in which a moving part is not projected from the valve body, in such a control valve as the communicating opening area between a rotating disk and a fixed disk is changed by turning the rotating disk on the fixed disk, by making the rotating disk the armature of a piezoelectric motor. CONSTITUTION:By turning a rotating disk 6 on a fixed disk 5 by driving the stator 7 of a piezoelectric motor, the communicating opening area of openings 5a, 6a between the rotating disk 6 and the fixed disk 5 is changed, so that the flow rate control or open/close control of fluid flowing inside a valve body 1 can be carried out. Being the armature of the piezoelectric motor, the rotating disk 6 is turned so as to be in contact with the ring-shaped stator 7 of the piezoelectric motor provided inside the valve body 1, and therefore unlike a conventional control valve, the moving part of the valve body 1 has no projected part.
|
