{
  "$type": "site.standard.document",
  "coverImage": {
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  "description": "To optimize an ignition timing of premixture for improving fuel efficiency regardless of significant change in EGR ratio or fluctuation in temperature of recirculated exhaust gas and temperature in a combustion chamber, in a diesel engine which controls an injector projecting into a combustion…",
  "path": "/patents/1092885",
  "publishedAt": "2003-10-01T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02B1/12",
    "MAZDA MOTOR [JP]"
  ],
  "textContent": "To optimize an ignition timing of premixture for improving fuel efficiency regardless of significant change in EGR ratio or fluctuation in temperature of recirculated exhaust gas and temperature in a combustion chamber, in a diesel engine which controls an injector projecting into a combustion chamber to execute main-injection for injecting fuel and increases an EGR ratio so as to attain the premixed compressive ignition combustion while the engine (1) is in the premixed combustion region (H) on the low load side. Just before or after the cool flame reaction occurs in mixture formed by the main-injection, the auxiliary-injection is executed so that the latent heat of vaporization of the fuel decreases temperature of mixture to delay the ignition to a timing near TDC. The auxiliary-injection amount is adjusted according to the estimated value of EGR ratio or the change in the crankangular velocity to optimize the ignition timing of the mixture.",
  "title": "Combustion control apparatus for an engine, an engine, combustion control method thereof, computer-readable storage medium, and computer program"
}