Coupled aircraft rotor system
    8.
    发明授权
    Coupled aircraft rotor system 有权
    联轴器转子系统

    公开(公告)号:US06616095B2

    公开(公告)日:2003-09-09

    申请号:US10053312

    申请日:2002-01-18

    IPC分类号: B64C1304

    摘要: The subject tiltrotor aircraft has three modes of operation: airplane mode, helicopter mode, and transition mode. A tilting mast, which transitions the aircraft between airplane mode and helicopter mode, is controlled by systems that allow selective movement of the rotor blades between the flight modes. A hub couples the rotor blades to the tilting mast such that torque and thrust are transferred, while allowing rotor thrust vector tilting. A main swash plate controls rotor thrust vector direction. Pitch horns are coupled to the rotor blades and the main swash plate via pitch links such that swash plate inputs are communicated to the rotor blades. The pitch links are coupled at “delta-3” values that are not optimum. A feedback swash plate and feedback links receive disk tilting inputs from the rotor blades, and supply inputs to the main swash plate, which compensates for the less than optimum delta-3 coupling.

    摘要翻译: 主旋翼飞机有三种操作模式:飞机模式,直升机模式和转换模式。 在飞机模式和直升机模式之间转换飞机的倾斜桅杆由允许转子叶片在飞行模式之间选择性移动的系统控制。 轮毂将转子叶片耦合到倾斜桅杆,使得扭矩和推力被转移,同时允许转子推力向量倾斜。 主旋转斜盘控制转子推力矢量方向。 间距角通过节距连杆与转子叶片和主旋转斜盘联接,使得斜盘输入与转子叶片连通。 音调链接以不是最佳的“delta-3”值耦合。 反馈斜盘和反馈链路接收来自转子叶片的盘倾斜输入,并向主旋转斜盘供应输入,该斜盘补偿不到最佳的delta-3耦合。

    Yoke and bearing fitting assembly for rotors
    9.
    发明授权
    Yoke and bearing fitting assembly for rotors 有权
    用于转子的轭和轴承配件组件

    公开(公告)号:US08360727B2

    公开(公告)日:2013-01-29

    申请号:US13144510

    申请日:2009-01-19

    IPC分类号: B64C27/37

    CPC分类号: B64C27/33 B64C27/32

    摘要: A yoke and bearing fitting assembly for a multi-blade aircraft rotor is disclosed. The assembly has a yoke having arms extending generally radially from a central portion of the yoke, the arms each having opposing surfaces. An aperture is formed in each arm and extends between the surfaces. A bearing fitting has a body configured for insertion into the aperture of the yoke and has two rims protruding from a periphery of the body, the body also having a bearing mount adapted for mounting a pitch change bearing assembly to the yoke. Each rim abuts one of the surfaces of the associated yoke arm when the bearing fitting is installed within the aperture, so as to create clamping forces between the rims and the arm and the arm. The bearing fitting transmits forces from the pitch bearing assembly into the yoke.

    摘要翻译: 公开了一种用于多叶片飞行器转子的轭和轴承配件组件。 组件具有轭,其具有从轭的中心部分大致径向延伸的臂,每个臂具有相对的表面。 在每个臂中形成一个孔,并在表面之间延伸。 轴承配件具有构造成用于插入轭的孔中的主体,并且具有从主体的周边突出的两个轮缘,该主体还具有适于将变桨轴承组件安装到轭的轴承座。 当轴承配件安装在孔内时,每个轮辋邻接相关联的轭臂的一个表面,以便在轮辋与臂和臂之间产生夹紧力。 轴承配件将变桨轴承组件的力传递到轭架中。