US 2010/0304263 A1 · VALVE HAVING VALVE ELEMENT DISPLACED BY AT LEAST ONE OF A MOVEMENT OF A DIAPHRAGM AND A MOVEMENT OF AN ACTUATOR, AND FUEL CELL USING THE VALVE

Abstract

A valve and a fuel cell using the same are provided, the valve having a fluid inlet, a fluid outlet, a flow path communicating therebetween, a valve element provided in the flow path, a diaphragm which is disposed so as to separate the inside from the outside of the flow path and which is to be deformed by the difference in pressure between the inside and the outside of the flow path, a valve shaft connecting between the valve element and the diaphragm, and an actuator provided for the diaphragm. In the valve described above, the valve element is displaced by at least one movement of the diaphragm and the actuator to open and close the valve. Accordingly, the valve has a simple structure which can be easily miniaturized and which is unlikely to be degraded even when a corrosive fluid flows through the valve.

Claims19

Dependent claims

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 at least one of a shape-memory alloy, a thermal expansion material, and an electromagnet,
wherein the valve element is displaced by the deformation of the diaphragm, so as to open and close the valve.

6 more elements

Dependencies are inferred from the claim text.

Valve having valve element displaced by at least one of a movement of a diaphragm and a movement of an actuator, and fuel cell using the valve

Life of this patent

Valve having valve element displaced by at least one of a movement of a diaphragm and a movement of an actuator, and fuel cell using the valve

Life of this patent

Abstract

Claims19