A pitch control unit for adjusting the pitch of a controllable pitch propeller of a vessel using a mechanical system. The pitch control unit comprises a hollow drive shaft with an input side for receiving power from a prime mover and an output side for delivering power to the propeller. The pitch control unit further comprises a control motor and a screw assembly arranged around the hollow drive shaft. The control motor drives rotation of a rotatable body of the screw assembly and the screw assembly converts that rotation into an axial displacement of a travelling body of the screw assembly. The travelling body is connected to a coupling member that extends through the hollow drive shaft and is connected to an actuator rod that upon linear displacement actuates a blade pitch adjustment mechanism inside a controllable pitch propeller. The connection between the travelling body and the coupling member is arranged by a yoke assembly that translates together with both the travelling body and the coupling member, and that rotates along with the drive shaft. The invention further relates to a vessel and propulsion arrangement comprising such a pitch control unit.


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    Title :

    PITCH CONTROL UNIT FOR A CONTROLLABLE PITCH PROPELLER


    Additional title:

    STEIGUNGSSTEUERUNGSEINHEIT FÜR EINEN STEIGUNGSVERSTELLBAREN PROPELLER
    UNITÉ DE COMMANDE DE PAS D'UNE D'HÉLICE À PAS VARIABLE



    Publication date :

    2022-11-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING



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