A feedback device (400; 600; 650) for use in a gas turbine engine (110), and methods and systems (200) for controlling a pitch for an aircraft-bladed rotor (130), are provided. The feedback device (400; 600; 650) is composed of a circular disk (410) and a plurality of position markers (402). The circular disk (410) is coupled to rotate with a rotor (130) of the gas turbine engine (110), to move along a longitudinal axis (A) of the rotor (130), and has first and second opposing faces (416, 418) defining a root surface (412) that extends between and circumscribes the first and second faces. (416, 418) The plurality of position markers (402) extend radially from the root surface (412) and are circumferentially spaced around the circular disk (410). The position markers (402) have a top surface (404) elevated with respect to the root surface (412) and opposing first and second side surfaces (406, 408). The side surfaces of the position markers (402) have a curved concave profile extending toward the root surface (412).


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    Title :

    PITCH CONTROL ASSEMBLY FOR AN AIRCRAFT-BLADED ROTOR


    Additional title:

    PITCH-STEUERUNGSANORDNUNG FÜR EINEN FLUGZEUGPROPELLER
    ENSEMBLE DE COMMANDE DE PAS POUR UN ROTOR D'AVION À PALES


    Contributors:

    Publication date :

    2021-05-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge / F01D Strömungsmaschinen [Kraft- und Arbeitsmaschinen oder Kraftmaschinen], z.B. Dampfturbinen , NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES / F02C Gasturbinenanlagen , GAS-TURBINE PLANTS / G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / G01P MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK , Messen der Linear- oder Winkelgeschwindigkeit, der Beschleunigung, der Verzögerung oder des Stoßes



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