{
  "$type": "site.standard.document",
  "description": "A crankshaft (13) is rotated in a forward direction until a crank angle reaches a reverse rotation starting range after a stop and before a start-up of an engine (10), and the crankshaft (13) is rotated in a reverse direction until the crank angle goes over a start-up intake range from the reverse…",
  "path": "/patents/950355",
  "publishedAt": "2015-06-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D13/0223",
    "YAMAHA MOTOR CO LTD [JP]"
  ],
  "textContent": "A crankshaft (13) is rotated in a forward direction until a crank angle reaches a reverse rotation starting range after a stop and before a start-up of an engine (10), and the crankshaft (13) is rotated in a reverse direction until the crank angle goes over a start-up intake range from the reverse rotation starting range and reaches a start-up ignition range at the start-up of the engine (10). When the crank angle is in the start-up intake range, a fuel-air mixture made of fuel and air that is injected by an injector is introduced into a combustion chamber (31 a) from an intake passage (22) through an intake port (21). Further, when the crank angle is in the start-up ignition range, the fuel-air mixture in the combustion chamber (31 a) is ignited by an ignition plug.",
  "title": "Engine system and saddle-straddling type motor vehicle"
}