The invention discloses a coaxial multi-element mixed working medium space combination propulsion system which comprises a working medium supply system and a coaxial chemical-electric hybrid thruster. The working medium supply system comprises a high-pressure gas cylinder, an oxidant supply system, a fuel supply system and an electric propulsion mixed working medium supply pipeline; the coaxial chemical-electric hybrid thruster comprises a chemical thrust unit and an electric thrust unit which are coaxial from inside to outside; the electric thrust unit comprises a metal shell, a gas distribution ring and an anode base; a mixed working medium gas collecting cavity is formed in the metal shell; n distribution holes are uniformly distributed in the gas distribution ring along the circumferential direction; and the anode base is provided with a secondary mixing cavity and n spray holes which are staggered with the distribution holes. On the basis of not influencing basic structures of a chemical propulsion system and an electric propulsion system, the characteristics of the chemical propulsion system and the electric propulsion system are fully utilized by taking the minimum change of the structure of a core device thruster in two original space propulsion systems as a target, and the requirements of high thrust and high specific impulse required by space propulsion are met at the same time.

    本发明公开了一种同轴式多元混合工质空间组合推进系统,包括工质供给系统和同轴式化电混合推力器;工质供给系统包括高压气瓶、氧化剂供给系统、燃料供给系统和电推进混合工质供应管路;同轴式化电混合推力器包括从内至外同轴的化学推力单元和电推力单元;电推力单元包括金属壳体、气体分配环和阳极底座;金属壳体内设有混合工质集气腔;气体分配环沿周向均布设有n个分配孔;阳极底座设有二次混合腔和与分配孔交错布设的n个喷孔。本发明在不影响化学推进系统和电推进系统基本结构的基础上,以对两类原有空间推进系统中核心装置推力器构型最小改动为目标,充分利用化学推进系统和电推进系统的特点,同时满足空间推进所需的大推力、高比冲要求。


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    Title :

    Coaxial multi-component mixed working medium space combination propulsion system


    Additional title:

    一种同轴式多元混合工质空间组合推进系统


    Contributors:
    NIE WANSHENG (author) / YANG YUNFAN (author) / ZHOU SIYIN (author) / WANG ZITONG (author) / MA LIANGCHUAN (author)

    Publication date :

    2024-08-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS




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