{
  "$type": "site.standard.document",
  "description": "A fuel injection valve 1 includes: a nozzle body 10 having a nozzle hole 11 formed at the tip thereof; a needle 20 that is slidably provided in the nozzle body 10, forms a fuel introduction path 21 between the needle 20 and the nozzle body 10, and is seated on a seat portion 12 in the nozzle body…",
  "path": "/patents/982711",
  "publishedAt": "2013-10-30T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M51/0671",
    "TOYOTA MOTOR CO LTD [JP]"
  ],
  "textContent": "A fuel injection valve 1 includes: a nozzle body 10 having a nozzle hole 11 formed at the tip thereof; a needle 20 that is slidably provided in the nozzle body 10, forms a fuel introduction path 21 between the needle 20 and the nozzle body 10, and is seated on a seat portion 12 in the nozzle body 10; a pressure chamber 13 that stores fuel introduced through the fuel introduction path 21; a relay chamber 50 that is located closer to the base end side than the seat portion 12 is, and closer to the tip side than the pressure chamber 13 is; a first helical fuel passage 60 that connects the pressure chamber 13 to the relay chamber 50, and applies a flow to fuel, the flow swirling around an axis A of the needle 20; and second helical fuel passages 70 that connect the relay chamber 50 to a seat space 15 that is formed between the seat portion 12 and the needle 20 when the needle 20 is lifted up.",
  "title": "FUEL INJECTION VALVE"
}