Disc rotor retraction system |
|||||||
| 申请号 | EP12157385.1 | 申请日 | 2012-02-28 | 公开(公告)号 | EP2492192A3 | 公开(公告)日 | 2017-08-30 |
| 申请人 | The Boeing Company; | 发明人 | Podgurski, Daniel Michael; | ||||
| 摘要 | A disc rotor blade retraction system includes a main blade spar (22) incorporating a hydraulic cylinder (54) and having a screw thread (34). A ball screw (24) is concentrically carried within the main blade spar and is operably connected to a ball nut (60) which has an outboard end connected to an intermediate spar (26) with a hydraulic piston (62) received for reciprocation in the hydraulic cylinder. A first geared actuator (20) engages the ball screw and a second geared actuator (30) engages the main blade spar screw thread. A hydraulic fluid accumulator (74) providing pressurized hydraulic fluid is connected to an outboard end of the hydraulic cylinder and a controller actuates the first and second geared actuators. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
QQ群二维码
意见反馈
意见反馈