A system is provided. The system includes a dual piston actuator and valves. The dual piston actuator includes a primary actuator (111) and a protection actuator (112). The primary and protection actuators move to increase and decrease a pitch of propellers of an aircraft with respect to a supply of first and second mediums. The valves include a first check valve (115), a second check valve (116), and a third valve (120). The third valve operates between a first mode and a protection mode. The second medium is directed to the primary and protection actuators through the first and second check valves by the third valve when the third valve is operating in a protection mode.


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    Title :

    DUAL ACTUATOR HYDRAULIC PITCH-LOCK PROPELLER SYSTEM


    Additional title:

    HYDRAULISCHES STEIGUNGSVERRIEGELUNGSPROPELLERSYSTEM MIT ZWEI AKTUATOREN
    SYSTÈME D'HÉLICE HYDRAULIQUE À VERROUILLAGE DE PAS ET À DOUBLE ACTIONNEUR


    Contributors:

    Publication date :

    2021-03-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



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