A system for controlling propeller pitch in the event of electro-hydraulic servo valve (EHSV) failure can include an actuator (101) and a selection valve (123) in fluid communication with the actuator. The selection valve can be fluid communication with a first EHSV (109) having a first null state bias configured to bias the actuator to an increased-pitch position, and a second EHSV (111) having a second null state bias configured to bias the actuator to a decreased-pitch position. The selection valve can be configured to selectively allow fluid communication between one of the first EHSV and actuator and/or the second EHSV and the actuator.


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    Titel :

    DUAL VALVE SYSTEMS FOR ACTUATOR CONTROL


    Weitere Titelangaben:

    DOPPELVENTILSYSTEME ZUR STEUERUNG EINES STELLGLIEDES
    SYSTÈMES À DOUBLE SOUPAPE POUR COMMANDE D'ACTIONNEUR


    Beteiligte:
    MAVER TIMOTHY (Autor:in)

    Erscheinungsdatum :

    01.11.2023


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B64C AEROPLANES , Flugzeuge / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein



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