| 摘要 |
PROBLEM TO BE SOLVED: To prevent fuel gas from leaking from a fuel cell while suppressing that structure of a fuel cell system becomes complicated.SOLUTION: A fuel gas introduction port 234 of a fuel cell 23 is connected with a reformer 22 by a fuel gas supply pipe 251, and introduces fuel gas from the reformer 22 to a negative electrode. A negative electrode discharge gas discharge port 235 is connected with a negative electrode discharge gas discharge pipe 252, and discharges negative electrode discharge gas discharged from the negative electrode to the outside of a housing 21. An oxidant gas introduction port 236 is opened to an internal space 210 of the housing 21, and introduces oxidant gas in the internal space 210 to a positive electrode. A positive electrode discharge gas discharge port 237 is connected with a positive electrode discharge gas discharge pipe 254 joining the negative electrode discharge gas discharge pipe 252 outside the housing 21, and discharges positive electrode discharge gas discharged from the positive electrode to the outside of the housing 21. Thus, the fuel gas can be prevented from leaking from the fuel cell 23 while suppressing that structure of the fuel cell system becomes complicated.SELECTED DRAWING: Figure 2 |
