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1. 发明授权

US4430043A Variable stator vane operating mechanism for turbomachines 失效
标题翻译：用于涡轮机的可变定子叶片操作机构
公开(公告)号：US4430043A
公开(公告)日：1984-02-07
申请号：US272550
申请日：1981-06-11
申请人： Ronald W. Knight , Clive E. Olive
发明人： Ronald W. Knight , Clive E. Olive
IPC分类号： F01D17/16 , F02C9/20 , F04D29/56 , F01B25/02
CPC分类号： F01D17/162 , F04D29/563
摘要： A variable stator vane operating mechanism for a gas turbine engine includes a plurality of unison rings 21,22 and 23 each connected by a drag link 18,19 and 20 respectively to a pivoting beam 14. The unison rings are connected to each of vanes 10 in a stator vane row by first arms 24. In order to minimize side loads on the unison rings by the drag links during pivoting of the beam, the beam is connected at its free end to a second arm 30 which is pivotable about an axis 28 by means of a torque tube 26 or other suitable actuator, and the length of the second arm 30 between the axis 28 and its point of connection 44 to the beam is made as nearly as possible equal to the length of the first arms 24. By this means the fore and aft movement of the beam can be matched to the fore and aft movement of the unison rings, or at least in the case of one of them, and the drag links remain substantially in the plane of the unison rings.
摘要翻译：用于燃气涡轮发动机的可变定子叶片操作机构包括多个共同环21,22和23，每个共同环21,22和23分别通过牵引连杆18,19和20连接到枢转梁14.共振环连接到每个叶片10 在第一臂24的定子叶片行中。为了在梁的枢转期间通过牵引连杆最小化协调环上的侧向载荷，梁在其自由端处连接到第二臂30，第二臂30可绕轴线28枢转通过扭矩管26或其他合适的致动器，并且第二臂30在轴线28与其到梁的连接点44之间的长度尽可能地等于第一臂24的长度。通过这意味着梁的前后运动可以与协调环的前后运动匹配，或者至少在其中一个的情况下，并且牵引连杆基本上保持在协调环的平面中。

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