A collective pitch adjustment mechanism for a variable-pitch rotor that has blades for rotation about a rotor axis, e.g., for a flight vehicle or drone, via a motor. The mechanism has a servo actuator and a bearing cage for blade rotation. The servo actuator varies the collective pitch of the blades via a pushrod, and a servo actuator arm is configured for rotation and connected to the pushrod via a joint. Mounting portions are provided for securement of the blades and an actuation horn is coupled to the pushrod. The blades are rotationally and/or translationally coupled to the actuation horn via the mounting portions. The servo actuator causes rotational movement of the servo actuator arm, which in turn causes translational movement of the pushrod, which causes linear movement of the actuation horn to thereby collectively cause a collective change in a pitch angle, i.e. the collective pitch, of the blades.


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    Title :

    COLLECTIVE-PITCH ADJUSTMENT MECHANISM FOR VARIABLE-PITCH PROPELLER OR ROTOR UTILIZED IN A FLIGHT VEHICLE OR DRONE AND METHOD FOR SHAPING NOISE PROFILE


    Contributors:
    SWEDLOVE NATHAN (author) / WANG HUBERT (author) / OL MICHAEL V (author) / EMADI AMIR (author) / GHARIB MORTEZA (author)

    Publication date :

    2024-08-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge





    COAXIAL ROTOR PAIR ASSEMBLY WITH VARIABLE COLLECTIVE PITCH ROTOR / PROPELLER FOR FLIGHT VEHICLE OR DRONE

    OL MICHAEL V / GHARIB MORTEZA / EMADI AMIR | European Patent Office | 2024

    Free access

    COAXIAL ROTOR PAIR ASSEMBLY WITH VARIABLE COLLECTIVE PITCH ROTOR/PROPELLER FOR FLIGHT VEHICLE OR DRONE

    OL MICHAEL V / GHARIB MORTEZA / EMADI AMIR | European Patent Office | 2024

    Free access

    COAXIAL ROTOR PAIR ASSEMBLY WITH VARIABLE COLLECTIVE PITCH ROTOR/PROPELLER FOR FLIGHT VEHICLE OR DRONE

    OL MICHAEL V / GHARIB MORTEZA / EMADI AMIR | European Patent Office | 2025

    Free access