Propeller blade retention
    1.
    发明公开
    Propeller blade retention 有权
    Luftschraubenhaltevorrichtung

    公开(公告)号:EP2796367A1

    公开(公告)日:2014-10-29

    申请号:EP14154449.4

    申请日:2014-02-10

    申请人: Rolls-Royce plc

    IPC分类号: B64C11/04 F01D5/30

    CPC分类号: B64C11/04 B64C11/26

    摘要: A propeller blade retention arrangement (30) having a propeller blade comprising in radial sequence an aerofoil portion (32), a shank portion (35) and a root portion (36). The root portion having first cross-sectional area (38) close to the shank portion and second cross-sectional area (40) at the end distal to the aerofoil portion, wherein the second cross-sectional area is greater than the first cross-sectional area. At least two cheeks (42)each having an inner surface arranged to abut the root portion, an outer surface that is threaded and edge surfaces that abut another of the at least two cheeks; wherein the at least two cheeks are arranged to surround the root portion in circumferential abutment. A collar (44) having a threaded inner surface arranged to threadingly engage the outer surfaces of the at least two cheeks.

    摘要翻译: 一种具有螺旋桨叶片的螺旋桨叶片保持装置(30),其包括径向顺序地包括机翼部分(32),柄部分(35)和根部部分(36)。 所述根部具有靠近所述柄部分的第一横截面积(38)和在所述机翼部分远端的第二横截面区域(40),其中所述第二横截面面积大于所述第一横截面积 区。 至少两个颊部(42),每个颊部(42)具有布置成邻接根部的内表面,具有螺纹的外表面和与所述至少两个颊板中的另一个相邻的边缘表面; 其中所述至少两个脸颊被布置成围绕所述根部在周向邻接处。 具有螺纹内表面的套环(44)布置成与所述至少两个脸颊的外表面螺纹接合。

    A de-icing apparatus and a method of using the same
    3.
    发明公开
    A de-icing apparatus and a method of using the same 有权
    Enteisungsvorrichtung und Verfahren zur Verwendung einer solchen

    公开(公告)号:EP2762407A1

    公开(公告)日:2014-08-06

    申请号:EP14152311.8

    申请日:2014-01-23

    申请人: Rolls-Royce plc

    发明人: Beaven, David

    IPC分类号: B64D15/14 B64C11/00

    CPC分类号: B64D15/12 B64C11/20 B64D15/14

    摘要: A propeller assembly (100) comprises two or more blade elements (102) each comprising two or more blade element portions (120) arranged sequentially radially along the blade element (102). Each of the two or more blade element portions (120) that are radially equipositioned along corresponding ones of the two or more blade elements (102) together form a blade element portion array (130).
    Each of the two or more blade element portions (120) comprise at least one heating element (140) with each one of the at least one heating elements that is located in a correspondingly radially positioned blade element portion (120) being connected to one another to form a heating element array (150).
    The two or more heating element arrays (152, 154, 156) are adapted to sequentially heat respective ones of the two or more blade element portion arrays (130) so as to de-ice the blade elements.

    摘要翻译: 螺旋桨组件(100)包括两个或更多个叶片元件(102),每个叶片元件包括两个或更多个叶片元件部分(120),叶片元件部分沿叶片元件(102)顺序地排列。 两个或更多个叶片元件部分(120)中的每一个沿着相应的两个或更多个叶片元件(102)的径向配置一起形成叶片元件部分阵列(130)。 两个或更多个刀片元件部分(120)中的每一个包括至少一个加热元件(140),其中所述至少一个加热元件中的每一个位于相应的径向定位的刀片元件部分(120)中,彼此连接 以形成加热元件阵列(150)。 两个或更多个加热元件阵列(152,154,156)适于顺序地加热两个或更多个叶片元件部分阵列(130)中的相应的一个以使得叶片元件脱冰。