| 摘要 |
A fuel cell system including: a fuel cell (10) including a fuel gas channel (11) and an oxidant gas channel (12), which is configured to generate electricity using a fuel gas and an oxidant gas; a diluting unit (32) configured to dilute gas discharged from the fuel gas channel (11) by mixing the discharged gas with a dilution gas which is supplied from an oxidant gas supply unit (31) and passed through and discharged from the fuel cell (10), and to exhaust the diluted gas to outside; a purge valve (25) configured to purge gas in the fuel gas channel (11) to the diluting unit (32); a scavenging unit (41) configured to scavenge the fuel gas channel (11) and the oxidant gas channel (12); and a dilution assist unit (52) configured to supply a dilution assist gas to the diluting unit (32) through an assist passage (50) connected to the diluting unit (32) to assist dilution in the diluting unit (32), during scavenging by the scavenging unit (42). |
