| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable to distribute a reaction gas well throughout the electrode face by making uniform the flow-path resistance in a zigzag reaction gas passage. <P>SOLUTION: An oxidizer gas passage 32 for supplying an oxidizer gas from an oxidizer gas entrance communicating hole 20a to an oxidizer gas exit communicating hole 20b is formed on a first metal plate 14. This oxidizer gas passage 32 comprises oxidant gas passage grooves 38a-38c which constitute serpentine passage grooves having two turning over portions T1, T2. The length of each passage of the oxidizer gas passage grooves 38a-38c is established nearly same and an entrance buffer part 34 and an exit buffer part 36 are communicated at both ends. The entrance buffer part 34 and the exit buffer part 36 have nearly a triangular form and are constituted in nearly a symmetrical shape. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
