{
  "$type": "site.standard.document",
  "description": "The injector has two actuator units (1, 2) for operating a nozzle needle (3), and an injection opening closed by stroke movement of the needle. The units are controlled independent of each other and coupled to the needle over a coupling device (5). The coupling device has a hydraulic coupling…",
  "path": "/patents/1009174",
  "publishedAt": "2011-09-28T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M51/0617",
    "BOSCH GMBH ROBERT [DE]"
  ],
  "textContent": "The injector has two actuator units (1, 2) for operating a nozzle needle (3), and an injection opening closed by stroke movement of the needle. The units are controlled independent of each other and coupled to the needle over a coupling device (5). The coupling device has a hydraulic coupling volume (6) that is limited by two effective surfaces (A-1, A-2). One of the surfaces is formed at a transmission element (7) acting together with the actuator units, such that force intensification is caused in a phase of opening stroke of the needle and path intensification is caused in another phase. An independent claim is also included for a method for controlling a nozzle needle of a fuel injector.",
  "title": "Fuel injector"
}