{
  "$type": "site.standard.document",
  "description": "To improve the injection fuel mass accuracy of a fuel injector, it is necessary to make the fuel injector perform seat valve (114B) opening and closing operation quickly. When the shapes of a fixed core (107) and an anchor (102) are optimized to improve the responsiveness of a magnetic flux, it is…",
  "path": "/patents/985231",
  "publishedAt": "2013-04-03T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M51/0664",
    "HITACHI AUTOMOTIVE SYSTEMS LTD [JP]"
  ],
  "textContent": "To improve the injection fuel mass accuracy of a fuel injector, it is necessary to make the fuel injector perform seat valve (114B) opening and closing operation quickly. When the shapes of a fixed core (107) and an anchor (102) are optimized to improve the responsiveness of a magnetic flux, it is necessary to ensure a sufficient fuel path area while preventing adhesion by making the adherence phenomenon rarely occur between an end face of the anchor (102) and an end face of the fixed core (107). To achieve the above object, in the invention, a through hole (170-173) passing through an anchor (102) forming an armature (114) of an electromagnetic fuel injector from a face of the anchor (102) facing a fixed core (107) to a back face is formed so that the through hole (170-173) has a large-diameter portion and a small-diameter portion.",
  "title": "Fuel injector"
}