发明名称 |
DISC ROTOR RETRACTION SYSTEM |
摘要 |
A disc rotor blade retraction system includes a main blade spar incorporating a hydraulic cylinder and having a screw thread. A ball screw is concentrically carried within the main blade spar and is operably connected to a ball nut which has an outboard end connected to an intermediate spar with a hydraulic piston received for reciprocation in the hydraulic cylinder. A first geared actuator engages the ball screw and a second geared actuator engages the main blade spar screw thread. A hydraulic fluid accumulator providing pressurized hydraulic fluid is connected to an outboard end of the hydraulic cylinder and a controller actuates the first and second geared actuators. |
申请公布号 |
CA2760021(C) |
申请公布日期 |
2014.10.07 |
申请号 |
CA20112760021 |
申请日期 |
2011.12.01 |
申请人 |
THE BOEING COMPANY |
发明人 |
PODGURSKI, DANIEL MICHAEL |
分类号 |
B64C27/54;B64C27/473 |
主分类号 |
B64C27/54 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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