The invention provides an airplane auxiliary fuel tank oil port sealing structure. The airplane auxiliary fuel tank oil port sealing structure comprises an auxiliary fuel tank shell, a metal fuel cover and a fastener; the auxiliary fuel tank shell is made of a composite material; a fuel port is formed in the side face of the auxiliary fuel tank shell; a first mounting hole is formed in the side surface of the fuel port in the auxiliary fuel tank shell; the metal fuel cover is connected with the fuel port; the metal fuel cover is provided with an annular sealing seat, and the annular sealing seat is used for sealing a gap between the fuel port and the metal fuel cover; and a second mounting hole is formed in the annular sealing seat, and the fastener penetrates through the first mounting hole to be connected into the second mounting hole. The auxiliary fuel tank shell is made of the composite material, so that the overall weight is reduced, and the impact resistance is high; and the annular sealing seat of the metal fuel cover is fixedly attached to the shell, and the situation that the sealing performance of the fuel port is good is ensured.

    本发明提供了一种飞机副油箱油口密封结构,包括副油箱壳体、金属油盖和紧固件;副油箱壳体是采用复合材料制作的;副油箱壳体的侧面设有油口;副油箱壳体上,在油口的侧面位置设有第一安装孔;金属油盖连接油口处;金属油盖设有环形密封座,环形密封座用于密封油口与金属油盖之间的缝隙;环形密封座上设有第二安装孔,紧固件穿过第一安装孔连接在第二安装孔内。本发明的副油箱壳体采用复合材料制作,减轻了整体的重量,抗冲击力强;金属油盖的环形密封座与壳体之间贴合固定,确保了油口处的密封性好。


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    Title :

    Airplane auxiliary fuel tank oil cover sealing structure


    Additional title:

    飞机副油箱油盖密封结构


    Contributors:
    ZHANG YI (author) / JI BAOFENG (author) / CAO LIANG (author) / WANG FEI (author) / GUO HAO (author) / ZHANG PENG (author)

    Publication date :

    2021-11-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16J Kolben , PISTONS / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



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