{
  "$type": "site.standard.document",
  "description": "The invention makes vortices generated at the time opening a valve with the intermediate degree of opening small in a rotary-body type throttle valve of a spark ignition internal combustion engine so as to reduce the flow resistance. A rotary-body type throttle valve for a spark ignition internal…",
  "path": "/patents/1109548",
  "publishedAt": "2001-10-04T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02D9/16",
    "HONDA MOTOR CO LTD [JP]"
  ],
  "textContent": "The invention makes vortices generated at the time opening a valve with the intermediate degree of opening small in a rotary-body type throttle valve of a spark ignition internal combustion engine so as to reduce the flow resistance. A rotary-body type throttle valve for a spark ignition internal combustion engine in which the valve comprises a valve casing 11 in the inside of which an intake passage 12a, 12b is formed with a rotary-body recess portion 12d which adopts a line intersecting a central axis 12c of the intake passage as an axis thereof being formed in the midst of the intake passage 12a, 12b, and a valve element 13 in a rotary-body shape which is rotatably fitted into the rotary-body recess portion 12d of the valve casing 11, and a communication passage 15 which makes'an upstream intake passage 12a and a downstream intake passage 12b sandwiching the rotary-body recess portion 12d of the valve casing 11 communicate with each other is formed in the valve element 13. A through hole 18 which is directed from the communication passage 15 of the valve element 13 in a direction intersecting a central axis 15a of the communication passage 15 and reaches only one of rotary outer surfaces of the valve element 13 is formed in the valve element 13.",
  "title": "Rotary-body type throttle for spark ignition internal combustion engine"
}