{
  "$type": "site.standard.document",
  "description": "The pump-nozzle unit for the injection of a medium, especially fuel, includes a pump (2) with a piston (3), and a pressure chamber (5) hydraulically connected to a nozzle chamber (11) via a pressure channel (6,9). The pump interacts with a control valve (7), and between the pressure channel and…",
  "path": "/patents/1072258",
  "publishedAt": "2005-11-23T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M57/023",
    "VOLKSWAGEN MECHATRONIC GMBH [DE]"
  ],
  "textContent": "The pump-nozzle unit for the injection of a medium, especially fuel, includes a pump (2) with a piston (3), and a pressure chamber (5) hydraulically connected to a nozzle chamber (11) via a pressure channel (6,9). The pump interacts with a control valve (7), and between the pressure channel and control valve a pre-control volume is formed and which is hydraulically connected to the pressure channel via a restrictor (23) so that a change in the closing position of the control valve is transmitted to the pressure channel in a damped state.",
  "title": "Pump injector"
}