{
  "$type": "site.standard.document",
  "coverImage": {
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  "description": "The invention relates to a cylinder direct injection engine in which fuel is injected directly into combustion chambers and air-fuel mixture is guided by an air flow. In such engines it is difficult to secure combustion stability under low engine speed and low load conditions such as during idling…",
  "path": "/patents/1112176",
  "publishedAt": "2001-06-20T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02B17/005",
    "HITACHI LTD [JP]"
  ],
  "textContent": "The invention relates to a cylinder direct injection engine in which fuel is injected directly into combustion chambers and air-fuel mixture is guided by an air flow. In such engines it is difficult to secure combustion stability under low engine speed and low load conditions such as during idling. Furthermore, there are needs for improvement of emission characteristics and fuel economy in other operation modes as well. An engine according to the invention injects fuel while dividing the same in plural parts during a compression stroke. The first injection forms a lean air-fuel mixture around an ignition plug (32), and the second injection makes a flammable air-fuel mixture reach an area around the ignition plug (32). This ensures efficient stratified combustion and allows improvement in emission and fuel economy performance.",
  "title": "Fuel injection apparatus and method for cylinder injection type internal combustion engine"
}