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    SINGLE-PIECE BLISK FOR TURBOMACHINE FAN COMPRISING AN UPSTREAM AND/OR DOWNSTREAM RECESS MAKING ITS BLADES MORE FLEXIBLE
    1.
    发明申请
    SINGLE-PIECE BLISK FOR TURBOMACHINE FAN COMPRISING AN UPSTREAM AND/OR DOWNSTREAM RECESS MAKING ITS BLADES MORE FLEXIBLE 有权
    用于包含上海和/或下游地带的涡轮风扇的单一气囊制造其刀片更灵活

    公开(公告)号：US20160138403A1

    公开(公告)日：2016-05-19

    申请号：US14942106

    申请日：2015-11-16

    申请人： Snecma

    发明人： Damien Merlot ,  Etienne Ide ,  Philippe Gérard Edmond Joly

    IPC分类号： F01D5/14 ,  F01D5/34

    CPC分类号： F01D5/141 ,  F01D5/34 ,  F04D29/321 ,  F04D29/329 ,  F05D2220/36 ,  F05D2230/53 ,  F05D2240/303 ,  F05D2240/304 ,  F05D2260/941

    摘要： The invention relates to a single-piece fan blisk (14) for a turbojet, this blisk (14) comprising a hub (16) with a general shape of revolution about a rotation axis (AX) and comprising an external peripheral face (18) of revolution extending radially towards the rotation axis at an upstream face (19) and a downstream face both of which are in the form of rings. This hub (16) supports radially oriented blades (17) at its external peripheral face (18), each comprising a base through which it is connected to this external peripheral face (18), each blade (17) having a leading edge (22) and a trailing edge (23) that are radially oriented. The spacing between the upstream face (19) and the downstream face of the hub (16) along the rotation axis (AX) is less than the distance separating the leading edge (22) from the trailing edge (23) of each blade.

    摘要翻译： 本发明涉及一种用于涡轮喷气发动机的单件式风扇叶片（14），该叶片（14）包括一个围绕旋转轴线（AX）具有大致旋转形状的轮毂（16），并且包括外部外围面（18） 的旋转方向在上游面（19）和下游面径向向着旋转轴线延伸，两者都是环的形式。 该轮毂（16）在其外周面（18）处支撑径向取向的叶片（17），每个叶片包括一个与该外部外围面（18）连接的基座，每个叶片（17）具有前缘 ）和径向定向的后缘（23）。 沿着旋转轴线（AX）的上游面（19）和轮毂（16）的下游面之间的间隔小于将前缘（22）与每个刀片的后缘（23）分开的距离。