{
  "$type": "site.standard.document",
  "description": "The invention relates to an HC absorption combustion catalyst (11) that is provided in the exhaust pipe (10) of an internal combustion engine (9) and shifts from an HC absorption phase to an HC purification phase through an HC release phase as a temperature of the HC absorption combustion catalyst…",
  "path": "/patents/1079281",
  "publishedAt": "2005-03-16T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D41/024",
    "HITACHI LTD [JP]"
  ],
  "textContent": "The invention relates to an HC absorption combustion catalyst (11) that is provided in the exhaust pipe (10) of an internal combustion engine (9) and shifts from an HC absorption phase to an HC purification phase through an HC release phase as a temperature of the HC absorption combustion catalyst (11) increases from a low value to a high value. The temperature of the HC absorption combustion catalyst (11) is controlled in accordance with the HC absorption phase, the HC release phase and the HC purification phase.",
  "title": "Method and apparatus for controlling temperature of catalyst and engine system having the apparatus"
}