Apparatus and method for roll moment equalization at high advance ratios for rotary wing aircraft
    1.
    发明授权
    Apparatus and method for roll moment equalization at high advance ratios for rotary wing aircraft 有权
    用于旋转翼飞机的高提前比例的滚动力矩均衡装置和方法

    公开(公告)号:US08668162B1

    公开(公告)日:2014-03-11

    申请号:US13199679

    申请日:2011-09-07

    IPC分类号: B64C27/26 B64C27/52

    摘要: A method for equalizing rolling moments at high advance ratios is disclosed including impelling an aircraft in a forward direction at an airspeed by means of a thrust source and rotating a rotor of the aircraft at an angular velocity with respect to the airspeed effective to cause a positive total lift on each blade due to air flow over the blades in the retreating direction when the blade is moving in the retreating direction. The rotor includes an even number of blades placed at equal angular intervals around the rotor hub. One or both of cyclic pitch and rotor angle of attack are adjusted such that a rolling moment of the retreating blade due to reverse air flow is between 0.3 and 0.7 times a rolling moment on the advancing blade due to lift.

    摘要翻译: 公开了一种用于以高提前比率均衡滚动力矩的方法,包括通过推力源在空速下向前推动飞行器,并以相对于空速的角速度旋转飞机的转子,以有效地引起正向 当叶片沿退回方向移动时,由于叶片在退回方向上的空气流过,在每个叶片上的总升力。 转子包括在转子毂周围以相等的角度间隔放置的偶数个叶片。 调节循环桨距和转子迎角的一个或两个,使得由于反向气流而导致的后退叶片的滚动力矩由于提升而在前进叶片上的滚动力矩的0.3至0.7倍之间。

    LOW SPEED AUTOGYRO YAW CONTROL APPARATUS AND METHOD
    2.
    发明申请
    LOW SPEED AUTOGYRO YAW CONTROL APPARATUS AND METHOD 有权
    低速自动控制装置和方法

    公开(公告)号:US20120312915A1

    公开(公告)日:2012-12-13

    申请号:US13545904

    申请日:2012-07-10

    IPC分类号: B64C27/82 B64C27/02

    摘要: Apparatus and methods for controlling yaw of a rotorcraft in the event of one or both of low airspeed and engine failure are disclosed. A yaw propulsion device, such as an air jet or a fan may be used. A pneumatic fan may be driven by compressed air released into a channel surrounding an outer portion of the fan. Power for the yaw propulsion device and other system may be provided by a hydraulic pump and/or generator engaging the rotor. Low speed yaw control may be provided by auxiliary rudders positioned within the stream tube of a prop. The auxiliary rudders may one or both of fold down and disengage from rudder controls when not in use. Apparatus for generating horizontal lift imbalance induced a tail boom positioned within the downwash of a rotor may also be used, including compressed air vents or lateral or trailing edge flaps.

    摘要翻译: 公开了在低空速和发动机故障中的一个或两个情况下控制旋翼航空器的偏航的装置和方法。 可以使用偏航推进装置,例如空气喷射器或风扇。 气动风扇可以被释放到围绕风扇外部的通道的压缩空气驱动。 用于偏航推进装置和其它系统的动力可由与转子接合的液压泵和/或发电机提供。 低速偏航控制可以由位于支柱的流管内的辅助方向舵提供。 辅助方向舵可以在不使用时向下折叠并与方向舵控制器脱离。 用于产生水平升降机不平衡的装置也可以使用定位在转子的下冲液内的尾臂,包括压缩空气通风口或横向或后缘翼片。

    Low speed autogyro yaw control apparatus and method
    3.
    发明授权
    Low speed autogyro yaw control apparatus and method 有权
    低速自动偏航控制装置及方法

    公开(公告)号:US08752786B2

    公开(公告)日:2014-06-17

    申请号:US13545904

    申请日:2012-07-10

    IPC分类号: B64C27/82

    摘要: Apparatus and methods for controlling yaw of a rotorcraft in the event of one or both of low airspeed and engine failure are disclosed. A yaw propulsion device, such as an air jet or a fan may be used. A pneumatic fan may be driven by compressed air released into a channel surrounding an outer portion of the fan. Power for the yaw propulsion device and other system may be provided by a hydraulic pump and/or generator engaging the rotor. Low speed yaw control may be provided by auxiliary rudders positioned within the stream tube of a prop. The auxiliary rudders may one or both of fold down and disengage from rudder controls when not in use. Apparatus for generating horizontal lift imbalance induced a tail boom positioned within the downwash of a rotor may also be used, including compressed air vents or lateral or trailing edge flaps.

    摘要翻译: 公开了在低空速和发动机故障中的一个或两个情况下控制旋翼航空器的偏航的装置和方法。 可以使用偏航推进装置,例如空气喷射器或风扇。 气动风扇可以被释放到围绕风扇外部的通道的压缩空气驱动。 用于偏航推进装置和其它系统的动力可由与转子接合的液压泵和/或发电机提供。 低速偏航控制可以由位于支柱的流管内的辅助方向舵提供。 辅助方向舵可以在不使用时向下折叠并与方向舵控制器脱离。 用于产生水平升降机不平衡的装置也可以使用定位在转子的下冲液内的尾臂,包括压缩空气通风口或横向或后缘翼片。

    PRE-LANDING, ROTOR-SPIN-UP APPARATUS AND METHOD
    4.
    发明申请
    PRE-LANDING, ROTOR-SPIN-UP APPARATUS AND METHOD 有权
    预紧,转子旋转装置和方法

    公开(公告)号:US20120168556A1

    公开(公告)日:2012-07-05

    申请号:US13334261

    申请日:2011-12-22

    IPC分类号: B64C27/08 B64C27/12

    摘要: A method and apparatus for reducing roll of rotorcraft landing in autorotation may include executing a flight with a rotorcraft. The flight may include first, second, and third portions ordered sequentially. During the first portion, the rotorcraft may be flown with the rotor exclusively in autorotation. During the second portion, the rotorcraft may be flown with the rotor powered at least partially by an engine of the rotorcraft, which may increase the rotational speed of the rotor. During the third portion, the rotorcraft may be flown with the rotor exclusively in autorotation. The flight and the third portion may terminate simultaneously with a touch down of the rotorcraft. Kinetic energy stored in the rotor during the second portion, during the third portion, bring the ground speed of the rotorcraft to substantially zero before touching down.

    摘要翻译: 用于减少旋转飞机降落在自动调速中的方法和装置可以包括用旋翼飞机执行飞行。 飞行可以包括顺序排列的第一,第二和第三部分。 在第一部分期间,旋翼航空器可以独自在自转中与转子一起飞行。 在第二部分期间,旋翼航空器可以飞行,转子至少部分地由旋翼飞机的发动机供电,这可以增加转子的旋转速度。 在第三部分期间,旋翼航空器可以独自在自转中与转子一起飞行。 飞行和第三部分可以与旋翼飞机的触碰同时终止。 在第三部分期间,在第二部分期间存储在转子中的动能使旋翼飞机的地面速度在触碰之前基本上为零。

    Pre-landing, rotor-spin-up apparatus and method
    5.
    发明授权
    Pre-landing, rotor-spin-up apparatus and method 有权
    预着陆,转子旋转装置和方法

    公开(公告)号:US08998127B2

    公开(公告)日:2015-04-07

    申请号:US13334261

    申请日:2011-12-22

    IPC分类号: B64C27/02 B64C27/18 B64C27/26

    摘要: A method and apparatus for reducing roll of rotorcraft landing in autorotation may include executing a flight with a rotorcraft. The flight may include first, second, and third portions ordered sequentially. During the first portion, the rotorcraft may be flown with the rotor exclusively in autorotation. During the second portion, the rotorcraft may be flown with the rotor powered at least partially by an engine of the rotorcraft, which may increase the rotational speed of the rotor. During the third portion, the rotorcraft may be flown with the rotor exclusively in autorotation. The flight and the third portion may terminate simultaneously with a touch down of the rotorcraft. Kinetic energy stored in the rotor during the second portion, during the third portion, bring the ground speed of the rotorcraft to substantially zero before touching down.

    摘要翻译: 用于减少旋转飞机降落在自动调速中的方法和装置可以包括用旋翼飞机执行飞行。 飞行可以包括顺序排列的第一,第二和第三部分。 在第一部分期间,旋翼航空器可以独自在自转中与转子一起飞行。 在第二部分期间,旋翼航空器可以飞行,转子至少部分地由旋翼飞机的发动机供电,这可以增加转子的旋转速度。 在第三部分期间,旋翼航空器可以独自在自转中与转子一起飞行。 飞行和第三部分可以与旋翼飞机的触碰同时终止。 在第三部分期间,在第二部分期间存储在转子中的动能使旋翼飞机的地面速度在触碰之前基本上为零。

    Anemometer drive apparatus and method
    6.
    发明授权
    Anemometer drive apparatus and method 有权
    风速计驱动装置及方法

    公开(公告)号:US08939394B1

    公开(公告)日:2015-01-27

    申请号:US13199677

    申请日:2011-09-07

    摘要: A combined fixed and rotary wing aircraft may operate in vertical takeoff mode relying on the rotary wing, exclusively, and may completely change over to flight support by the fixed wing at higher advance ratios. Advance ratios may exceed not only the typical advance ratios of less than 0.5 but may exceed 1, and may even exceed 2. At the higher advance ratios, the rotary wing may be completely unloaded, the aircraft relying on the fixed wing for vertical support and airfoil lift. To maintain stability in the rotary wing, configuration, autorotation must continue. To power autorotation, without presenting a large area and drag, an anemometer-type flap system may selectively open and close to increase drag on the retreating blades, and provide minimum drag on the advancing blades.

    摘要翻译: 组合的固定和旋转翼型飞机可以独立地依靠旋翼以垂直起飞模式运行,并且可以以更高的提前比例以固定翼完全转变为飞行支撑。 提前比率不仅可以超过小于0.5但可能超过1的典型提前比例,而且可能超过1,甚至可能超过2.在较高的提前比例下,旋翼可以完全卸载,飞机依靠固定翼进行垂直支撑, 翼型升降机。 为了保持旋转翼的稳定性,配置必须继续。 为了对自动驾驶进行自动驾驶,没有呈现大面积和拖曳,风速计式翼片系统可以选择性地打开和关闭,以增加后退叶片上的阻力,并且在推进的叶片上提供最小的阻力。

    ROTOR UNLOADING APPARATUS AND METHOD
    7.
    发明申请
    ROTOR UNLOADING APPARATUS AND METHOD 有权
    转子卸载装置和方法

    公开(公告)号:US20120168568A1

    公开(公告)日:2012-07-05

    申请号:US13335541

    申请日:2011-12-22

    IPC分类号: B64C27/26

    摘要: A method and apparatus for enabling high speed flight in a rotorcraft are disclosed. The method may include executing a flight with a rotorcraft. The flight may include a first portion and second portion ordered sequentially. During the first portion, the rotorcraft may be flown with the rotor exclusively in autorotation. Once sufficient airspeed is obtained, the flight may transition to the second portion. Wherein, substantially all of the weight of the rotorcraft may be supported by one or more fixed wing surfaces of the rotorcraft. Thus, during the second portion, the rotor may be completely unloaded. To keep the rotor stable by turning, the rotor may be powered during the second portion by an engine of the rotorcraft by way of a prerotation system.

    摘要翻译: 公开了一种用于在旋翼航空器中实现高速飞行的方法和装置。 该方法可以包括执行具有旋翼航空器的飞行。 飞行可以包括顺序排列的第一部分和第二部分。 在第一部分期间,旋翼航空器可以独自在自转中与转子一起飞行。 一旦获得足够的空速,飞行可以转变到第二部分。 其中,旋翼航空器的基本上所有的重量可以由旋翼航空器的一个或多个固定翼面支撑。 因此,在第二部分期间,转子可以完全卸载。 为了通过转动来保持转子稳定,转子可以在第二部分期间由旋转飞机的发动机通过预旋转系统供电。