A propeller device comprising a main shaft communicated from one end to a marine vessel engine transmission; a front propeller (1) provided on the main shaft, the front propeller having a hub (2) and a plurality of blades (3) extending radially outwardly from the hub; a rear propeller (34) being co-axially to and spaced apart from the front propeller backwardly in an axial direction, the rear propeller having a hub (4) and a plurality of blades (5) extending radially outwardly from the hub. The device further comprises an adaptor (7) being coaxial with the main shaft and comprising a second shaft (6) for supporting the rear propeller and a plurality of pitched-formed seating surfaces (32) having ramps, the seating surfaces being spaced apart from the second shaft in axial direction, and the adaptor communicated with the rear side of the front propeller in the axial direction; a plurality of locking elements (18) resiliently movable in the axial direction, each being in contact with the seating surfaces of the said adaptor from one end and communicated with the rear propeller from the other end.


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    Titel :

    UNIDIRECTIONAL TORQUE BOOSTING PROPELLER


    Weitere Titelangaben:

    UNIDIREKTIONALER DREHMOMENTVERSTÄRKUNGSPROPELLER
    HÉLICE DE SURVOLTAGE DE COUPLE UNIDIRECTIONNEL


    Beteiligte:

    Erscheinungsdatum :

    25.09.2019


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

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



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