{
  "$type": "site.standard.document",
  "description": "A fuel cell generates electric power by the electrochemistry reaction of hydrogen and the oxygen in air. After the hydrogen discharged without being consumed of an anode is burned in a burner, it is discharged out of a fuel cell system. However, while activity of the combustion catalyst in the…",
  "path": "/patents/1079691",
  "publishedAt": "2005-03-02T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "H01M8/04089",
    "NISSAN MOTOR [JP]"
  ],
  "textContent": "A fuel cell generates electric power by the electrochemistry reaction of hydrogen and the oxygen in air. After the hydrogen discharged without being consumed of an anode is burned in a burner, it is discharged out of a fuel cell system. However, while activity of the combustion catalyst in the burner is not carried out, the burner cannot bum hydrogen. Therefore, the fuel cell system has a cathode switch valve in the middle of the cathode line, and when the fuel cell system stops, non-saturated air of a compressor bypasses the fuel cell, and supplies the air to the catalyst burner. Although the cathode exhaust gas of saturated steam is circulating to the catalyst burner at the time of regular operation of a fuel cell, the non-saturated air which bypasses the fuel cell and is supplied can replace the inside of the catalyst burner with dry air. Therefore, the amount of steam in the catalyst burner 9 is decreased at the time of a stop, and the catalyst is quickly activated at the time of re-starting.",
  "title": "Fuel cell system"
}