{
  "$type": "site.standard.document",
  "description": "The valve has an actuator with a piston, a lifting piston interacting with the actuator piston via a pressure medium, a valve needle interacting with the lifting piston with a valve closure body, a valve seat body and a seal seat. The actuator piston has at least one step bounding on a damping…",
  "path": "/patents/1090215",
  "publishedAt": "2004-01-21T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M51/0603",
    "BOSCH GMBH ROBERT [DE]"
  ],
  "textContent": "The valve has an actuator with a piston, a lifting piston interacting with the actuator piston via a pressure medium, a valve needle interacting with the lifting piston with a valve closure body, a valve seat body and a seal seat. The actuator piston has at least one step bounding on a damping chamber spatially separate from a working chamber and shaped or arranged so that the pressure medium can flow to or from it via a choke point. The valve has a piezoelectric, electrostrictive or magnetostrictive actuator (4), an actuator piston (9), a lifting piston (15) interacting with the actuator piston via a pressure medium and working chamber (26), a valve needle (20) interacting with the lifting piston with a valve closure body (22), a valve seat body (21) and a seal seat. The actuator piston has at least one stage bounding on a damping chamber (27) spatially separate from the working chamber and shaped or arranged so that the pressure medium can flow to or from it via a choke point (30).",
  "title": "Fuel injector"
}