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    • 12. 发明授权
    • Rotorcraft control system with stepped mixing linkage
    • 旋翼机控制系统采用阶梯式混合联动
    • US07461812B2
    • 2008-12-09
    • US10528906
    • 2003-09-19
    • Carlos A. FennyDuane Hicks
    • Carlos A. FennyDuane Hicks
    • B64C27/52
    • B64C27/56B64C13/24
    • A control system for a rotorcraft is disclosed. The control system includes a stepped mixing linkage, such that a selected amount of right-left lateral cyclic output is generated for certain amounts of forward-aft cyclic input. The stepped mixing linkage includes two supporting links and a floating link pivotally coupled between the two supporting links. The ratio of the lengths of the two supporting links to the length of the floating link is small, thereby generating a selected lateral sinusoidal output, a selected rotation of the sinusoidal output, and a selected ramped output in response to each forward-aft pilot input command.
    • 公开了一种用于旋翼飞机的控制系统。 控制系统包括阶梯式混合连杆,使得针对一定量的前后循环输入产生选定量的左右横向循环输出。 阶梯式混合联动装置包括两个支撑连杆和枢转地联接在两个支撑连杆之间的浮动连杆。 两个支撑链节的长度与浮动连杆的长度之比小,从而产生选定的横向正弦输出,正弦输出的选定旋转以及响应于每个前后导频输入的选定斜坡输出 命令。
    • 20. 发明授权
    • Multi-ratio rotorcraft drive system and a method of changing gear ratios thereof
    • 多比旋翼航空器驱动系统及其变速比的改变方法
    • US08133155B2
    • 2012-03-13
    • US12502596
    • 2009-07-14
    • Ryan T. EhingerCarlos A. FennyCharles J. KilmainEric A. SinusasKevin Worrell
    • Ryan T. EhingerCarlos A. FennyCharles J. KilmainEric A. SinusasKevin Worrell
    • F16H59/30
    • B64C27/08B64C27/12Y10T477/20Y10T477/27Y10T477/638Y10T477/6414Y10T477/6422Y10T477/69335
    • A multi-ratio rotorcraft drive system and a method of changing gear ratios thereof are disclosed. According to one embodiment, the multi-ratio rotorcraft drive system comprises a rotor system comprising one or more rotors and one or more engines. Each engine of the one or more engines is coupled to the rotor system through a multi-ratio transmission. The multi-ratio transmission comprises an output shaft coupled to the rotor system, an input shaft coupled to a respective engine of the one or more engines, a high speed clutch integrated into a high speed gear train, and a low speed clutch integrated into a low speed gear train. The high speed clutch and the low speed clutch are freewheeling clutches without a friction plate and are capable of disconnecting the output shaft and the input shaft in an overrunning condition when the output shaft spins faster than the input shaft. The multi-ratio transmission shifts between the high speed gear train and the low speed gear train by engaging or disengaging the high speed clutch and modulating speed of the coupled engine.
    • 公开了一种多比例旋翼航空器驱动系统及其变速比的改变方法。 根据一个实施例,多比例旋翼航空器驱动系统包括包括一个或多个转子和一个或多个发动机的转子系统。 一个或多个发动机的每个发动机通过多比率变速器联接到转子系统。 多比率变速器包括联接到转子系统的输出轴,联接到一个或多个发动机的相应发动机的输入轴,集成到高速齿轮系中的高速离合器和集成在其中的低速离合器 低速齿轮系。 高速离合器和低速离合器是没有摩擦板的续流离合器,当输出轴旋转速度比输入轴快时,能够以超越状态将输出轴和输入轴断开。 高速齿轮系和低速齿轮系之间的多比率传动通过使高速离合器接合或分离并调节联接的发动机的速度而移动。