| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a low-cost, small-sized, and simple valve structure having pressure or flow rate control characteristics of high precision, and a fuel cell system having the valve structure. <P>SOLUTION: The fuel cell system 1 to make power generation by supplying fuel gas to its fuel electrode and supplying an oxidizer gas to the oxidizer electrode, has a valve element 19 installed between a primary passage 17a to admit flowing-through of the oxidizer gas and a secondary passage 17b leading to the primary passage 17a and having a smaller section than it, wherein the valve element 19 is arranged movable in tight contact with one end of the secondary passage 17b leading to the primary 17a and furnished with asymmetrical valve hole 19c whose effective section area owing to the movement of the valve element 19 is set any as desired. <P>COPYRIGHT: (C)2010,JPO&INPIT |
