The invention belongs to the field of aircraft fuel systems, and relates to a flame suppressor with a pressure relief function. The fire-retardant valve comprises a shell (1), a small spring (2), a small valve (3), a large valve (4), a large spring (5), a blanking cap (6), a fire-retardant core (7) and a check ring (8). A double-channel form of a main channel and a bypass channel is adopted. The main channel stops the transmission of flame through a flame arresting core with a micro-pore-diameter structure; the bypass channel achieves the air inlet and exhaust functions under the specific pressure when the main channel is blocked through two valve coupling structures. The safety problem of pressure building of the oil tank when the flame suppressor freezes is solved.

    本发明属于飞机燃油系统领域,涉及一种具有释压功能的火焰抑制器。本发明包括壳体(1)、小弹簧(2)、小活门(3)、大活门(4)、大弹簧(5)、堵盖(6)、阻火芯(7)、挡圈(8)。本发明采用主通道和旁通道的双通道形式。主通道通过具有微小孔径结构的阻火芯阻止火焰的传递;旁通道通过两个活门耦合结构,实现主通道堵塞时在特定压力下进气和排气功能。本发明解决了火焰抑制器的结冰时油箱憋压的安全性问题。


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    Title :

    Flame suppressor with pressure relief function


    Additional title:

    一种具有释压功能的火焰抑制器


    Contributors:
    LU FAN (author) / REN YI (author) / REN TAO (author) / XIONG JIALIN (author)

    Publication date :

    2023-06-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    A62C FIRE-FIGHTING , Feuerbekämpfung / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



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