A directed thrust propulsion system has a central hub and at least three blades that extends outward at a rake angle between about 20 to 70 degrees. Each blade is shaped as a portion of a cylindrical surface, in which concave side forms the blade face and is facing in direction of thrust generated by rotating the hub. The convex side of the blades minimizes drag in the water that resists forward motion while the concave shape and tilted end portions directs the thrust inward toward the extension of the hub's principal axis rearward. The directed thrust propulsion system may be deployed on inboard and outboard motors for all manner of watercraft to increase efficiency above 10 knots speed.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Directed thrust propulsion system


    Beteiligte:
    DE MARIA JOHN (Autor:in)

    Erscheinungsdatum :

    21.02.2023


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

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



    Watercraft propulsion apparatus having directed thrust capability

    MARESH JOSEPH D | Europäisches Patentamt | 2021

    Freier Zugriff

    Propulsion Thrust Test System

    N. J. Dubois / W. S. Wilkinson | NTIS | 1999



    Low thrust propulsion

    Byers, D. | NTRS | 1991


    Gas propulsion thrust device

    MOROZOV IGOR | Europäisches Patentamt | 2024

    Freier Zugriff