| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel cell system capable of stably and accurately acquiring a downstream side pressure value of an injection device for a reaction gas, in the system for circulating reaction off-gas.SOLUTION: The fuel cell system 1 has a fuel cell 10, a supply passage 31 for supplying the reaction gas to the fuel cell 10, a circulating passage 32 for returning the reaction off-gas discharged from the fuel cell 10 to the supply passage 31, an injection device 35 arranged on the supply passage 31 and injecting the reaction gas to a downstream side, a converging device 36 arranged on a connection section between the supply passage 31 and the circulating passage 32 and flowing the injected reaction gas to a downstream side by converging the reaction off-gas, and a pressure sensor 43 arranged between the injection device 35 and the converging device 36. Detection timing of reaction gas pressure in the pressure sensor 43 is changed in response to a load state of the fuel cell 10 and injection timing of the injection device 35. |
