{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
    "ref": {
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    "mimeType": "image/png",
    "size": 100681
  },
  "description": "The engine (100) has an intake valve opening and shutting an intake port. A variable valve gear sets a lift amount and an open valve period of the intake valve. A control unit in which the lift amount and the open valve period of the intake valve are set independently. An operation mode of the…",
  "path": "/patents/1082872",
  "publishedAt": "2004-10-27T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02B31/085",
    "HITACHI LTD [JP]"
  ],
  "textContent": "The engine (100) has an intake valve opening and shutting an intake port. A variable valve gear sets a lift amount and an open valve period of the intake valve. A control unit in which the lift amount and the open valve period of the intake valve are set independently. An operation mode of the intake valve in a cylinder is set respectively and independently according to the operating state of the engine. An independent claim is also included for a method of controlling a variable valve type internal combustion engine in which the intake airflow is controlled with a set of intake valves.",
  "title": "Variable valve type internal combustion engine and control method thereof"
}