The invention provides an inflow pipeline of a water jet propulsion device and the water jet propulsion device, and belongs to the technical field of underwater propellers. The inflow pipeline of the water jet propulsion device comprises a pipeline body provided with a first pipe section and a second pipe section which are connected and a stern flange, and the first pipe section is used for being connected with a ship bottom plate; the stern flange is axially and movably arranged outside the second pipe section in a sleeving mode, the inner wall face of the stern flange and the outer wall face of the second pipe section are in dynamic sealing, and the stern flange is used for being connected with a stern board. The stern plate can be prevented from bearing large thrust, the problem that the stern plate is prone to deformation is solved, and meanwhile the sealing performance between the stern plate and the inflow pipeline is guaranteed.

    本公开提供了一种喷水推进装置的进流管道和喷水推进装置,属于水下推进器技术领域。该喷水推进装置的进流管道包括:管道本体,具有相连的第一管段和第二管段,所述第一管段用于与船底板连接;艉法兰,轴向活动套装在所述第二管段外,所述艉法兰的内壁面与所述第二管段的外壁面动密封,所述艉法兰用于与船艉板相连。本公开能避免船艉板承受较大推力,改善船艉板容易变形的问题,同时保证船艉板和进流管道之间的密封性。


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    Title :

    Inflow pipeline of water jet propulsion device and water jet propulsion device


    Additional title:

    喷水推进装置的进流管道和喷水推进装置


    Contributors:
    HAN HAIHUI (author) / CHENG ZHE (author) / HU BINBIN (author) / MAO JI (author)

    Publication date :

    2022-01-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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