The invention relates to the technical field of water-jet propulsion pumps of powered surfboards, and provides a high-speed water-jet propulsion pump and a powered surfboard. The water-jet propulsion pump comprises an outer stator, an inner rotor and an impeller arranged in the inner rotor; the inner rotor is annular, the outer edge of the impeller is connected with the inner wall of the inner rotor, a wheel shaft is arranged in the middle of the impeller, and the wheel shaft is fixed in the middle of a water inlet flow channel through a radial support so that the inner rotor can rotate in the outer stator through the wheel shaft; a gap is formed between the inner rotor and the outer stator, when the inner rotor drives the impeller to rotate, a low-pressure area is formed on the side, located at a water inlet of the impeller, of water flow, a high-pressure area is formed on the side, located at a water outlet of the impeller, of the water flow, and a cooling water path is formed by the high-pressure area and the low-pressure area through the gap; and the water flow in the cooling water path takes away heat on the outer stator in the flowing process, so that the working temperature of a motor of the high-speed water-jet propulsion pump is reduced.

    本发明涉及动力冲浪板的喷水推进泵技术领域,提供了一种高速喷水推进泵及动力冲浪板,该喷水推进泵包括外定子、内转子,以及设于内转子中的叶轮;所述内转子呈环状,所述叶轮外缘与内转子的内壁连接,所述叶轮的中间设有轮轴,所述轮轴通过放射状的支架固定在进水流道的中间,以使所述内转子能够通过轮轴在外定子中转动;所述内转子与外定子之间有间隙,在所述内转子带动叶轮转动时,水流在位于所述叶轮进水口的一侧形成低压区,在位于所述叶轮出水口的一侧形成高压区,所述高压区与低压区通过所述间隙形成冷却水路;冷却水路中的水流在流动的过程中带走外定子上的热量,从而减低高速喷水推进泵电机的工作温度。


    Access

    Download


    Export, share and cite



    Title :

    High-speed water-jet propulsion pump and powered surfboard


    Additional title:

    一种高速喷水推进泵及动力冲浪板


    Contributors:
    LI GUONENG (author) / WANG RULONG (author) / CHEN YUANZHANG (author)

    Publication date :

    2021-07-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F04D Strömungsarbeitsmaschinen , NON-POSITIVE-DISPLACEMENT PUMPS / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING



    HIGH-SPEED WATER JET PROPULSION PUMP AND POWERED SURFBOARD

    LI GUONENG / WANG RULONG / CHEN YUANZHANG | European Patent Office | 2022

    Free access

    HUMAN POWERED SURFBOARD

    KIM HO SENG | European Patent Office | 2016

    Free access

    ELECTROMOTIVE SURFBOARD AND ELECTROMOTIVE SURFBOARD PROPULSION APPARATUS

    LEE DONG WON / BAE YOUNG JIN / CHOI JUNG BOK et al. | European Patent Office | 2020

    Free access

    Omnidirectional water jet propulsion electric surfboard

    YU CUNYIN / ZHANG HENG / YAN PENG et al. | European Patent Office | 2023

    Free access

    ELECTRICALLY POWERED, WATER-JET PROPELLED SURFBOARD

    LIND ALEXANDER / BECKMANN ESBJÖRN | European Patent Office | 2019

    Free access