A turbofan (100) having a nacelle (102) delimiting a duct (204) for a bypass flow (208) and including a fixed structure (206) includes a guide vane support (218) with guide vanes (219), a mobile cowl (216) movable in translation between an advanced position and a retracted position, arms (250), each one being mobile in rotation on the guide vane support (218) between a stowed position and a deployed position and comprising a distal end and a proximal end, for each pair of adjacent arms (250), a flexible screen (252) extending angularly between the two arms (250), and of which an exterior edge is attached to the guide vane support (218), and wherein the distal end of each arm (250) is fixed along the interior edge, a link rod (254) mounted articulated between the distal ends, actuators to cause the mobile cowl (216) to move, and an operating system which moves each arm (250). Such an arrangement allows a reduction in weight.

    一种涡轮风扇发动机(100),具有界定用于旁通流(208)的管道(204)的发动机短舱(102),其包括固定结构(206),固定结构包括具有引导叶片(219)的引导叶片支撑件(218);能够在前进和缩回位置之间平移运动的移动风罩(216);多个臂(250),各臂在引导叶片支撑件(218)上在收起和展开位置之间可旋转移动且包括远端和近端;对于每对相邻的臂(250),柔性罩(252)在两个臂(250)之间成角度地延伸,柔性罩的外边缘附连到引导叶片支撑件(218),其中各臂(250)的远端沿着内边缘固定;联杆(254)铰接安装在远端之间;致动器,用于使移动风罩(216)移动;使每个臂(250)运动的操作系统。用柔性罩和成组的旋转移动臂替换转向门及其驱动机构使得重量减少。


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    Title :

    TURBOFAN ENGINE HAVING A SYSTEM FOR SEALING THE BYPASS FLOW PASSAGE COMPRISING FABRIC PANELS


    Additional title:

    包括具有用于封闭旁通管道的罩系统的涡轮风扇发动机


    Contributors:

    Publication date :

    2021-07-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



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