{
  "$type": "site.standard.document",
  "description": "An engine includes: an intake passage through which air is guided to a combustion chamber; a first valve disposed in the intake passage; and an ECU that controls the first valve. The ECU includes: a first control section that keeps an opening of the first valve at an opening equal to or smaller…",
  "path": "/patents/983477",
  "publishedAt": "2013-10-09T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D41/0002",
    "YAMAHA MOTOR CO LTD [JP]"
  ],
  "textContent": "An engine includes: an intake passage through which air is guided to a combustion chamber; a first valve disposed in the intake passage; and an ECU that controls the first valve. The ECU includes: a first control section that keeps an opening of the first valve at an opening equal to or smaller than a first opening at least in a portion of an intake stroke of a first cycle; and a second control section that changes the opening of the first valve to a second opening greater than the first opening before end of an intake stroke of a second cycle subsequent to the first cycle, and keeps the opening of the first valve at the second opening at least in a portion of the intake stroke of the second cycle.",
  "title": "Internal combustion engine and straddle-type vehicle including the same"
}