Patent ID: 7790325
Filing Date: 2010-09-07
Classification: F16K,H01M,Y02E

Abstract:
1. A valve comprising: a fluid inlet; a fluid outlet; a fluid flow path communicating the fluid inlet with the fluid outlet; a valve element provided in the fluid flow path; a diaphragm, which is disposed on a side of the fluid outlet of the fluid flow path as viewed from the valve element so as to separate an inside of the fluid flow path from an outside thereof and which is to be deformed by a difference in pressure between the inside of the fluid flow path and the outside thereof in a direction of the difference in pressure; a valve shaft connecting the valve element and the diaphragm; and an actuator provided for the diaphragm and disposed so as to deform the diaphragm, the actuator comprising a piezoelectric material, wherein the valve element is displaced by the deformation of the diaphragm, so as to open and close the valve.