{
  "$type": "site.standard.document",
  "description": "An exhaust gas purifying system for an automotive internal combustion engine (1). The exhaust gas purifying system comprises a particulate filter (13) disposed in an exhaust gas passageway (12) of the engine to collect particulate in exhaust gas flowing through the exhaust gas passageway (12). The…",
  "path": "/patents/1084621",
  "publishedAt": "2004-08-25T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01N3/023",
    "NISSAN MOTOR [JP]"
  ],
  "textContent": "An exhaust gas purifying system for an automotive internal combustion engine (1). The exhaust gas purifying system comprises a particulate filter (13) disposed in an exhaust gas passageway (12) of the engine to collect particulate in exhaust gas flowing through the exhaust gas passageway (12). The collected particulate is burnt off to be removed by raising a temperature of exhaust gas in a condition in connection with the particulate filter (13). A plurality of devices (3,8,11,51) are provided for raising the temperature of exhaust gas to be introduced into the particulate filter (13) through the exhaust gas passageway (12) when the collected particulate is burned off to be removed. Additionally, a control unit (15) is configured to select at least one of the devices (3,8,11,51) in accordance with an engine operating region and preferentially operate the selected at least one of the devices (3,8,11,51) for raising the exhaust gas temperature.",
  "title": "Exhaust gas purifying system for internal combustion engine"
}