发明授权
- 专利标题: Ducted Anti-torque rotor with floating blades
- 专利标题(中): 带有浮动叶片的导向转矩转子
-
申请号: US298317申请日: 1994-09-01
-
公开(公告)号: US5542818A公开(公告)日: 1996-08-06
- 发明人: Jerome M. Monvaillier , Jacques J. Polveda
- 申请人: Jerome M. Monvaillier , Jacques J. Polveda
- 申请人地址: FRX Marignane Cedex
- 专利权人: Eurocopter France
- 当前专利权人: Eurocopter France
- 当前专利权人地址: FRX Marignane Cedex
- 优先权: FRX9405482 19940504
- 主分类号: B64C27/45
- IPC分类号: B64C27/45 ; B64C27/82 ; B64C27/48
摘要:
In the rotor, the pitch lever of each blade is connected to the tab of the pitch control spider by a ball joint mounted on a wrist pin and received with clearance in an oblong opening in a ring. The axially offset bearing surfaces of the cuff of the blade are mounted with a radial clearance in the bearings of the hub on which they swivel about the pitch axis of the blade. These radial clearances enable contacts of the ball joint against the edge of the opening on the side of the ends of its minor axis, but prevent these contacts on the side of the ends of the major axis of the oblong opening.