发明名称 |
Blade-pitch control system with indexing swashplate |
摘要 |
The present application includes a blade-pitch control system with an indexing swashplate. A swashplate assembly has a non-rotating portion and a rotating portion and an indexing portion of the mast. The swashplate assembly is translatably affixed to the indexing portion. A pitch link connects the rotating portion of the swashplate assembly to each blade. Translation of the swashplate assembly along the indexing portion causes a change in pitch of the blades and a corresponding indexing of the rotating portion of the swashplate assembly relative to the mast, the indexing causing a change in an angular orientation of each pitch link, thus providing for selected pitch-flap coupling between flapping motion of the yoke and pitch motion of the blades. |
申请公布号 |
US9365288(B2) |
申请公布日期 |
2016.06.14 |
申请号 |
US201213678272 |
申请日期 |
2012.11.15 |
申请人 |
Textron Innovations Inc. |
发明人 |
Stamps Frank B.;Rauber Richard E. |
分类号 |
B64C27/78;B64C27/605 |
主分类号 |
B64C27/78 |
代理机构 |
|
代理人 |
Walton James E. |
主权项 |
1. A blade-pitch control system for controlling a pitch angle of each of a plurality of blades on an aircraft rotor, the blades being rotatably connected to a yoke for rotation with a rotor mast, the control system comprising:
a swashplate assembly having a non-rotating portion and a rotating portion; an indexing portion of the mast, the swashplate assembly being translatably affixed to the indexing portion; a pitch link connecting the rotating portion of the swashplate assembly to each blade; wherein translation of the swashplate assembly along the indexing portion causes a change in pitch of the blades and a corresponding indexing of the rotating portion of the swashplate assembly relative to the mast, the indexing causing a change in an angular orientation of each pitch link, thus providing for selected pitch-flap coupling between flapping motion of the yoke and pitch motion of the blades; and wherein the indexing portion comprises curved splines connected to and causing indexing of the rotating portion of the swashplate. |
地址 |
Providence RI US |