Systems and methods for controlling an unducted turbofan engine (100, 102) to limit noise. The unducted turbofan engine (100, 102) may include an unducted fan (152) drivingly coupled with a low-pressure turbine (134) and a plurality of unducted outlet guide vanes (162). The unducted fan (152) may include a plurality of fan blades (154) and a pitch angle of the fan blades (154) may be variable. A pitch angle of the unducted outlet guide vanes (162) may be variable. A controller (300, 302) is configured to control the engine (100, 102) to limit noise based on a noise sensitive condition (350).


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    Title :

    OPEN ROTOR GAS TURBINE ENGINE NOISE REDUCTION


    Additional title:

    GERÄUSCHVERMINDERUNG BEI GASTURBINENMOTOREN IMT NICHT UMMANTELTEM ROTOR
    RÉDUCTION DU BRUIT D'UN MOTEUR À TURBINE À GAZ AYANT UN ROTOR NON CARENÉ



    Publication date :

    2023-05-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F02C Gasturbinenanlagen , GAS-TURBINE PLANTS / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



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