A waterjet propulsion apparatus is disclosed comprising a motor (7), an impeller (6) driven by the motor (7) via a drive shaft (8), and a power source. A fluid flow-path (10) is formed through the apparatus, the flow-path (10) extending from at least one fluid inlet (9), through two propulsion passages (3) extending from a propulsion inlet to an outlet (4) located at a rear end of the apparatus. The impeller (6) is located within the flow-path (10), after the at least one fluid inlet (9), and before the propulsion inlet of the each of the propulsion passages (3). The motor (7) is located outside of the flow path (10), between the two propulsion passages (3), and behind the impeller (6). The apparatus provides a compact and lightweight construction that can be used as part of a personal marine propulsion device (1) used by an individual. Figure 2 for publication if Figure 2


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    Title :

    WATERJET PROPULSION APPARATUS


    Contributors:

    Publication date :

    2020-01-16


    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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    O'BRIEN ARCHIE DAVID RICHARD | European Patent Office | 2019

    Free access

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    Marine waterjet propulsion

    Allison John | Tema Archive | 1993


    WATERJET PROPULSION NOISE

    Kallman, M. / Li, D.-Q. / Royal Institution of Naval Architects | British Library Conference Proceedings | 2001