{
  "$type": "site.standard.document",
  "description": "The invention relates to a metering device for dosing pressurized fluids, comprising a housing (12) having an end part provided with an outlet passage (20) terminating with a metering opening (22), an axially moveable valve needle passing through the outlet passage (20) and controlling opening and…",
  "path": "/patents/1089449",
  "publishedAt": "2004-02-25T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02M51/0603",
    "SIEMENS VDO AUTOMOTIVE SPA [IT]"
  ],
  "textContent": "The invention relates to a metering device for dosing pressurized fluids, comprising a housing (12) having an end part provided with an outlet passage (20) terminating with a metering opening (22), an axially moveable valve needle passing through the outlet passage (20) and controlling opening and closing of the metering opening (22), a piezoelectric actuator assembly (30) in axial alignment with the valve needle and cooperating with the valve needle to control its axial movement, means for transmitting an axial extension of the piezoelectric actuator assembly (30) to the valve needle to displace the needle from the closing position when activated, and spring means for urging the valve needle in the closing position. An adjustment element (40) is arranged at the end part of the housing (12) opposite to the end part provided with the outlet passage (20), applying an adjustable pressure force on the piezoelectric actuator assembly (30), the valve needle and the spring means, thereby setting a flow rate for the metering device.",
  "title": "Metering device with adjustable flow rate and method for setting a flow rate of a metering device"
}