Constant-Velocity Joint Link with Reduced Axial Stiffness

    公开(公告)号:US20180290738A1

    公开(公告)日:2018-10-11

    申请号:US16006552

    申请日:2018-06-12

    Abstract: The present application provides a drive link for a constant-velocity joint of an aircraft rotor, the link connecting a drive hub attached to a driveshaft to a rotor yoke. The link comprises a leading bearing connected to the drive hub, a trailing bearing connected to the yoke, a central portion between the bearings, and a tension loop connecting the bearings. The tension loop is formed from a composite material and is formed as a continuous band. The tension loop transfers drive forces from the leading bearing to the trailing bearing for driving the yoke in rotation with the driveshaft.

    Blade-pitch control system with indexing swashplate
    13.
    发明授权
    Blade-pitch control system with indexing swashplate 有权
    带索引斜盘的叶片桨距控制系统

    公开(公告)号:US09365288B2

    公开(公告)日:2016-06-14

    申请号:US13678272

    申请日:2012-11-15

    CPC classification number: B64C27/605

    Abstract: The present application includes a blade-pitch control system with an indexing swashplate. A swashplate assembly has a non-rotating portion and a rotating portion and an indexing portion of the mast. The swashplate assembly is translatably affixed to the indexing portion. A pitch link connects the rotating portion of the swashplate assembly to each blade. Translation of the swashplate assembly along the indexing portion causes a change in pitch of the blades and a corresponding indexing of the rotating portion of the swashplate assembly relative to the mast, the indexing causing a change in an angular orientation of each pitch link, thus providing for selected pitch-flap coupling between flapping motion of the yoke and pitch motion of the blades.

    Abstract translation: 本申请包括具有索引斜盘的叶片桨距控制系统。 斜盘组件具有非旋转部分和桅杆的旋转部分和分度部分。 斜盘组件可平移地固定到分度部分。 间距连杆将旋转斜盘组件的旋转部分连接到每个叶片。 斜盘组件沿着分度部分的平移导致叶片间距的变化以及斜盘组件相对于桅杆的旋转部分的相应分度,引导引起每个节距连杆的角取向的改变,从而提供 用于在轭的拍动运动和叶片的俯仰运动之间选择的桨距翼片耦合。

    CONSTANT-VELOCITY JOINT LINK WITH REDUCED AXIAL STIFFNESS
    14.
    发明申请
    CONSTANT-VELOCITY JOINT LINK WITH REDUCED AXIAL STIFFNESS 有权
    具有降低轴向刚度的恒速联轴节

    公开(公告)号:US20140322010A1

    公开(公告)日:2014-10-30

    申请号:US13872480

    申请日:2013-04-29

    CPC classification number: B64C27/41 B64C27/32 B64C29/0033

    Abstract: The present application provides a drive link for a constant-velocity joint of an aircraft rotor, the link connecting a drive hub attached to a driveshaft to a rotor yoke. The link comprises a leading bearing connected to the drive hub, a trailing bearing connected to the yoke, a central portion between the bearings, and a tension loop connecting the bearings. The tension loop is formed from a composite material and is formed as a continuous band. The tension loop transfers drive forces from the leading bearing to the trailing bearing for driving the yoke in rotation with the driveshaft.

    Abstract translation: 本申请提供了用于飞行器转子的等速度接头的驱动连杆,该连杆将连接到驱动轴的驱动轮毂连接到转子轭。 连杆包括连接到驱动轮毂的前导轴承,连接到轭的后轴承,轴承之间的中心部分和连接轴承的张力环。 张力环由复合材料形成并形成为连续带。 张力环将驱动力从前导轴承传递到后轴承,用于驱动轭与驱动轴一起旋转。

    Vibration attenuator
    15.
    发明授权

    公开(公告)号:US11214361B2

    公开(公告)日:2022-01-04

    申请号:US16197761

    申请日:2018-11-21

    Abstract: A vibration attenuator for an aircraft has first and second coaxial spinners configured for rotation about a mast axis and relative to a rotor. Upper and lower weights of each spinner are spaced radially from the axis and positioned 180 degrees from each other about the axis. The weights of each spinner are spaced from each other a distance parallel to the mast axis, each weight rotating about the mast axis in a different plane. The spinners rotate together relative to the rotor at a selected angular rate and are selectively rotatable relative to each other between a minimum-moment configuration, in which the upper weight of each spinner is angularly aligned with the lower weight of the other spinner, and a maximum-moment configuration, in which the upper weights are angularly aligned and the lower weights are angularly aligned, producing a whirling moment about the mast axis as the spinners rotate.

    Blade-Pitch Control System with Indexing Swashplate
    18.
    发明申请
    Blade-Pitch Control System with Indexing Swashplate 有权
    带索引斜盘的叶片间距控制系统

    公开(公告)号:US20140133980A1

    公开(公告)日:2014-05-15

    申请号:US13678272

    申请日:2012-11-15

    CPC classification number: B64C27/605

    Abstract: The present application includes a blade-pitch control system with an indexing swashplate. A swashplate assembly has a non-rotating portion and a rotating portion and an indexing portion of the mast. The swashplate assembly is translatably affixed to the indexing portion. A pitch link connects the rotating portion of the swashplate assembly to each blade. Translation of the swashplate assembly along the indexing portion causes a change in pitch of the blades and a corresponding indexing of the rotating portion of the swashplate assembly relative to the mast, the indexing causing a change in an angular orientation of each pitch link, thus providing for selected pitch-flap coupling between flapping motion of the yoke and pitch motion of the blades.

    Abstract translation: 本申请包括具有索引斜盘的叶片桨距控制系统。 斜盘组件具有非旋转部分和桅杆的旋转部分和分度部分。 斜盘组件可平移地固定到分度部分。 间距连杆将旋转斜盘组件的旋转部分连接到每个叶片。 斜盘组件沿着分度部分的平移导致叶片间距的变化以及斜盘组件相对于桅杆的旋转部分的相应分度,引导引起每个节距连杆的角度定向的改变,从而提供 用于在轭的拍动运动和叶片的俯仰运动之间选择的桨距翼片耦合。

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