{
  "$type": "site.standard.document",
  "description": "A variable geometry turbine (VGT) comprising an intake channel, a rotor, an adjustable nozzle, a nozzle actuator, and a controller. The controller comprises a calibration routine, arranged for calibrating the VGT during normal operation thereof. In the calibration routine, the controller is…",
  "path": "/patents/1396626",
  "publishedAt": "2024-11-20T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F02B37/22",
    "DAF TRUCKS NV [NL]"
  ],
  "textContent": "A variable geometry turbine (VGT) comprising an intake channel, a rotor, an adjustable nozzle, a nozzle actuator, and a controller. The controller comprises a calibration routine, arranged for calibrating the VGT during normal operation thereof. In the calibration routine, the controller is arranged for performing the steps of: - adjusting the adjustable nozzle from an initial position towards a closed position, while monitoring a pre-turbine pressure; - detecting a deflection point position of the adjustable nozzle at which a sharp difference in the pre-turbine pressure occurs; and - adjusting a minimum cross sectional area in the closed position, to adjust a working range of the VGT in dependence of varying operating conditions, wherein the working range excludes the detected deflection point position.",
  "title": "VARIABLE GEOMETRY TURBINE AND METHOD FOR CALIBRATING A VARIABLE GEOMETRY TURBINE"
}