Attorney Ref.: 1138P010CA01 ABSTRACT A jet propulsion unit for a marine vessel that comprises a diffuser/confusor; a steering control nozzle assembly; and a radius. The radius is introduced at a transition point between the diffuser/confusor and steering control nozzle assembly so that the diffuser/confusor can control a shape of water flow exiting the propulsion unit and can control corresponding acceleration over a large pressure differential presented by a wide range of vessel speeds, maneuvers and sea conditions. The jet propulsion unit thereby avoids problems common to marine jet propulsion units, such as cavitation. Date Recue/Date Received 2021-02-16

    L'invention concerne une unité de propulsion à jet pour un vaisseau marin comprenant un diffuseur/confuseur; un ensemble de tuyère de commande de direction; et un rayon. Le rayon est introduit au niveau d'un point de transition entre le diffuseur/confuseur et l'ensemble de tuyère de commande de direction de manière que le diffuseur/confuseur puisse réguler la forme d'un flux d'eau sortant de l'unité de propulsion et puisse commander une accélération correspondante sur une large gamme de pressions différentielles associées à une large gamme de vitesses de vaisseaux, de manuvres et d'états de la mer.


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    Title :

    MARINE DUCTED PROPELLER JET PROPULSION SYSTEM


    Additional title:

    SYSTEME MARIN DE PROPULSION PAR REACTION A HELICE CARENEE


    Contributors:

    Publication date :

    2022-11-01


    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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