{
  "$type": "site.standard.document",
  "description": "At the start of operation of an internal-combustion engine(S10,S12,S14), an exhaust flow is restrained (to raise the exhaust pressure) (S18), secondary air is supplied (S20), and the combustion air-fuel ratio (A/F) is set within the range of rich air-fuel ratios (S16, S22).",
  "path": "/patents/1092316",
  "publishedAt": "2003-10-29T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01N3/2006",
    "MITSUBISHI MOTORS CORP [JP]"
  ],
  "textContent": "At the start of operation of an internal-combustion engine(S10,S12,S14), an exhaust flow is restrained (to raise the exhaust pressure) (S18), secondary air is supplied (S20), and the combustion air-fuel ratio (A/F) is set within the range of rich air-fuel ratios (S16, S22).",
  "title": "EXHAUST EMISSION CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE"
}