Turbine mit Variabler Geometrie und Verfahren zur Kalibrierung einer Turbine mit Variabler Geometrie

Details

Veröffentlichungs-Nr.

EP4253741

Aktenzeichen

EP23165861

Anmeldetag

31. März 2023

Veröffentlichung

20. November 2024

Erteilung

20. November 2024

Rechtsraum

EP

IPC

F02C6/12F02C9/22F02B37/24

Abstract

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.

Anmelder

Firma

DAF Trucks N.V.

Land

🇳🇱 Niederlande

Fachgebiete