{
  "$type": "site.standard.document",
  "description": "The invention relates to an electromagnetic fuel injection valve having a needle (5) equipped with a valve body, a return spring (7) for applying a spring load to a valve seat side of the needle (5), an electromagnetic coil (2), and a magnetic circuit for magnetically attracting the needle (5) in…",
  "path": "/patents/1071541",
  "publishedAt": "2005-12-28T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M51/005",
    "HITACHI LTD [JP]"
  ],
  "textContent": "The invention relates to an electromagnetic fuel injection valve having a needle (5) equipped with a valve body, a return spring (7) for applying a spring load to a valve seat side of the needle (5), an electromagnetic coil (2), and a magnetic circuit for magnetically attracting the needle (5) in the opening direction of the valve by the excitation of the electromagnetic coil (2). The needle (5) has a movable core (14) operating as an element of said magnetic circuit. The movable core (14) and the valve body are connected via a joint having a spring function. A plate spring (50) is built into the needle (5), and an axially movable mass body is positioned, independently of the needle (5), between the return spring (7) and the plate spring (50).",
  "title": "Electromagnetic fuel injection valve"
}