Patent ID: 8252472
Filing Date: 2012-08-28
Classification: H01M,Y02E

Abstract:
1. A fuel cell system comprising: a fuel cell; a fluid flow path connected to the fuel cell; a fluid control valve provided within the fluid flow path, the fluid control valve including a diaphragm, a first pressure chamber on a first side of the diaphragm, and a second pressure chamber on an opposing side of the diaphragm and a three-way valve in fluid communication with both the first and second pressure chambers of the fluid control valve and the fluid flow path, wherein the fluid control valve is a valve that is opened and closed using a pressure of a fluid flowing through the fluid flow path, and the first pressure chamber of the fluid control valve is sealed to maintain the open or closed state of the fluid control valve by using a pressure inside the first pressure chamber, and wherein a control unit regulates the pressure of the fluid flowing through the fluid flow path based on a drive demand pressure that is required for driving the fluid control valve.