发明授权
US5249925A Variable-pitch multi-blade rotor, in particular for the rear anti-torque
system of a rotating wing aircraft
失效
可变桨距多叶片转子,特别是用于旋转翼飞机的后抗扭矩系统
- 专利标题: Variable-pitch multi-blade rotor, in particular for the rear anti-torque system of a rotating wing aircraft
- 专利标题(中): 可变桨距多叶片转子,特别是用于旋转翼飞机的后抗扭矩系统
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申请号: US972640申请日: 1992-11-06
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公开(公告)号: US5249925A公开(公告)日: 1993-10-05
- 发明人: Bruno Guimbal , Jean-Pierre Jalaguier
- 申请人: Bruno Guimbal , Jean-Pierre Jalaguier
- 申请人地址: FRX Paris
- 专利权人: Aerospatiale Societe Nationale Industrielle
- 当前专利权人: Aerospatiale Societe Nationale Industrielle
- 当前专利权人地址: FRX Paris
- 优先权: FRX9114893 19911202
- 主分类号: B64C11/32
- IPC分类号: B64C11/32 ; B64C27/58 ; B64C27/82 ; F04D29/36 ; B64C11/06
摘要:
A variable-pitch multi-blade rotor for use as the anti-torque rear rotor of a rotating wing aircraft has a rotor with a central shaft rotated about a central axis, a hub constrained to rotate with the central shaft about the central axis, blades distributed around the central axis with each blade being connected to the central shaft by a twistable element, a pitch control disk for the blades which is constrained to rotate with the central shaft but free to slide axially relative to the central shaft, and a member for controlling the sliding of the pitch control disk along the central shaft. Each blade root is secured to a transverse thrust and pitch control lever forming a yoke having one end hinged to the hub and another end hinged to the pitch control disk.
公开/授权文献
- US4223387A Device for examination of distances in a picture 公开/授权日:1980-09-16