{
  "$type": "site.standard.document",
  "description": "Fuel injection valve with a nozzle needle (7) arranged to be longitudinally displaceable in a pressure chamber (5), which cooperates with a stationary nozzle seat (8) to open and close at least one injection opening (9). The nozzle needle (7) delimits with its end facing away from the nozzle seat…",
  "path": "/patents/965499",
  "publishedAt": "2014-12-31T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M47/027",
    "BOSCH GMBH ROBERT [DE]"
  ],
  "textContent": "Fuel injection valve with a nozzle needle (7) arranged to be longitudinally displaceable in a pressure chamber (5), which cooperates with a stationary nozzle seat (8) to open and close at least one injection opening (9). The nozzle needle (7) delimits with its end facing away from the nozzle seat (8) a control chamber (20), in which a varying fuel pressure can be adjusted and by whose pressure a hydraulic force is exerted on the nozzle needle (7) in the direction of the nozzle seat (8). By means of a control valve (30), a hydraulic connection between the control chamber (20) and a low-pressure chamber (31) can be established, wherein the control valve (30) has a control valve chamber (33) with a control valve element (32) longitudinally displaceable therein and the control valve chamber (33) can be connected via a fill throttle (26) to the pressure chamber (5). The control valve element (32) cooperates with an end face (44) to open and close the fill throttle (26) with a sealing surface (46), wherein a sealing edge (44) is formed on the end face (44) of the control valve element (32), which surrounds the opening of the fill throttle (34) when in contact with the sealing surface (46) and thereby seals off against the control valve chamber (33).",
  "title": "Fuel injector valve for combustion engines"
}