The present invention relates to a pressure vibration damping apparatus capable of attenuating pressure vibration generated in a suction port by using molten material for a stable start-up transition of an ultra-high speed air-suction type propulsion engine, which comprises: a structure inside a suction pipe; and a pressure vibration damping member installed in the structure so as to face the suction port and forming a flow in the suction port through a plurality of porous flow paths when the propulsion engine is started to attenuate the pressure vibration generated in the suction pipe in a boosting step. In the present invention, the pressure vibration damping member may be composed of the molten material having a porous layer structure.

    본 발명은 초고속 공기흡입식 추진기관의 안정적 시동 천이를 위하여 용융물질을 이용하여 흡입구 내부에 발생하는 압력 진동을 감쇄시킬 수 있는 압력진동 감쇄 장치에 관한 것으로, 흡입관 내부의 구조물; 및 구조물에 흡입구와 대향하도록 설치되고, 추진기관 시동시 복수의 다공성 유로를 통해 상기 흡입구에 유동을 형성하여 부스팅 단계에서 흡입관에서 발생되는 압력 진동을 감쇄시키는 압력진동 감쇄 부재;를 포함하며, 상기 압력진동 감쇄 부재는 다공층 구조의 용융 물질로 구성될 수 있다.


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    Title :

    PRESSURE FLUCTUATION REDUCING APPARATUS USING MELTED MATERIALS


    Additional title:

    용융물질을 이용한 압력진동 감쇄 장치


    Contributors:
    PARK GEUN HONG (author) / CHOI JIN (author)

    Publication date :

    2018-05-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    F02K JET-PROPULSION PLANTS , Strahltriebwerke / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / F42B EXPLOSIVE CHARGES, e.g. FOR BLASTING , Explosive Ladungen, z.B. für Sprengungen



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