Patent ID: 8153320

Claim:
A hydrogen generating facility comprising a reaction chamber accommodating a hydrogen generating reactant, and a pressure regulating valve, the pressure regulating valve including a first pressure deformation portion which is deformable and which receives a pressure with the reaction chamber, a second pressure deformation portion opposed to the first pressure deformation portion and which is deformable and which receives a predetermined pressure, a first flow passage, a second flow passage, and a communication passage for allowing the first and second flow passages to communicate with each other, the first flow passage, the second flow passage, and the communication passage being disposed in a space between the first and second pressure deformation portions, and a valve member having a connecting portion, which extends through the communication passage and connects the first pressure deformation portion and the second pressure deformation portion together, and having a valve element which is provided at the connecting portion and closes the communication passage when moved toward the second pressure deformation portion, and wherein one of the first and second flow passages communicates with a supply source for supplying a reaction fluid, which reacts with the hydrogen generating reactant to generate hydrogen, to the reaction chamber, and the other of the first and second flow passages communicates with a flow passage communicating with the reaction chamber, and when the pressure within the reaction chamber is lower than a predetermined value, the valve element does not close the communication passage, and the reaction fluid is supplied to the flow passage communicating with the reaction chamber, but when the pressure within the reaction chamber is equal to or higher than the predetermined value, the valve element closes the communication passage to stop a flow of the reaction fluid.