| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide technology of suppressing excessive pressure elevation on the upstream side of a regulator, and of preventing malfunction of the regulator in a fuel cell system in which the regulator is arranged and installed at a gas supply flow passage to supply a gas to the fuel cell. <P>SOLUTION: The fuel cell system 1 is equipped with the fuel cell 2, a fuel gas supply flow passage 40 to supply the fuel gas to the fuel cell 2, an oxidation gas supply flow passage 50 to supply the oxidation gas to the fuel cell, a secondary regulator 12 installed at the fuel gas supply flow passage 40, a bypass flow passage 42 connecting the upstream side flow passage and the downstream side flow passage of the secondary regulator 12, and a pressure adjustment valve 10 which is installed at the bypass flow passage 42 and which closes when a difference between a pressure on the upstream side and the pressure on the downstream side is a prescribed value or less, and on the other hand which is opened when the difference exceeds the prescribed value. <P>COPYRIGHT: (C)2008,JPO&INPIT |
