{
  "$type": "site.standard.document",
  "description": "An exhaust gas emission control device of an internal combustion engine comprises: DPF (17), provided in an exhaust passage (11) of a diesel engine (1), for trapping a particulate in an exhaust gas; ECU (30) for determining whether regeneration of DPF is necessary or not; temperature raising means…",
  "path": "/patents/1067044",
  "publishedAt": "2006-05-31T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01N11/002",
    "MITSUBISHI MOTORS CORP [JP]"
  ],
  "textContent": "An exhaust gas emission control device of an internal combustion engine comprises: DPF (17), provided in an exhaust passage (11) of a diesel engine (1), for trapping a particulate in an exhaust gas; ECU (30) for determining whether regeneration of DPF is necessary or not; temperature raising means (16, 30), such as post-injection, for raising the DPF temperature when the ECU determines that the regeneration is necessary; and a temperature sensor (22) for detecting the DPF temperature, and stops control for temperature raise by the temperature raising means, if the DPF temperature detected by the temperature sensor (22) becomes a predetermined temperature or higher when temperature raise control over DPF by the temperature raising means is exercised. If the DPF temperature is the predetermined temperature or higher and a DPF temperature gradient has a negative value, the temperature raising means restores temperature raise control over DPF.",
  "title": "Exhaust emission control device of internal combustion engine"
}