Wind driven power generator with moveable cam
    92.
    发明授权
    Wind driven power generator with moveable cam 失效
    具有可动凸轮的风力发电机

    公开(公告)号:US07911076B2

    公开(公告)日:2011-03-22

    申请号:US12110100

    申请日:2008-04-25

    IPC分类号: F03D9/00

    摘要: A wind driven generator includes a rotor disposed in a cylindrical duct and supported by a frame for rotation in response to wind flowing through the duct. The rotor includes plural circumferentially spaced paralleled rotor blades supported for rotation about a generally horizontal axis. Each blade is supported for pivotal movement to change blade pitch, angle of attack or camber as the rotor rotates. A pitch or camber control motor, self-governing wind vane mechanism, or governing mechanism is operable to move a circular cam to vary blade pitch or camber to control rotor speed. The duct is mounted on a mast having a base supported on a foundation for pivotal movement to face the wind for maximizing air flow through the duct. Electric power generators are connected to opposite ends of the rotor at respective power output or drive shafts.

    摘要翻译: 风力发电机包括设置在圆柱形管道中并由框架支撑的转子,用于响应于流过管道的风而旋转。 转子包括多个周向间隔开的平行的转子叶片,所述转子叶片被支撑以围绕大致水平的轴线旋转。 每个叶片被支撑用于枢转运动,以在转子旋转时改变叶片间距,迎角或弯度。 桨距或外倾控制电机,自调节风向机构或调节机构可操作以移动圆形凸轮以改变叶片间距或弯度以控制转子速度。 管道安装在具有支撑在基座上的基座的桅杆上,用于枢转运动以面对风,以使通过管道的空气流最大化。 发电机在相应的动力输出或驱动轴处连接到转子的相对端。

    Variable-twist rotor blade controlled by hub pitch angle and rotational speed
    93.
    发明授权
    Variable-twist rotor blade controlled by hub pitch angle and rotational speed 失效
    可变扭转叶片由桨毂倾角和转速控制

    公开(公告)号:US07857598B2

    公开(公告)日:2010-12-28

    申请号:US11756336

    申请日:2007-05-31

    IPC分类号: B64C11/34

    摘要: The twist distribution of torsionally-flexible rotor blades is adjusted by exploiting centrifugal effect on inertial torquers affixed at one or more stations along the blade span. Twist is thereby made to vary passively as a function of rotor speed and hub incidence angle. With inertias of appropriate size and location, the twist variation is such that high rotor efficiency is maintained over a wide range of operating conditions. Satisfactory dynamic behavior of the blade, including cyclic-pitch response and flutter resistance, is simultaneously achieved.

    摘要翻译: 通过利用沿着叶片跨度固定在一个或多个站的惯性扭矩的离心效应来调节扭转柔性转子叶片的扭转分布。 由此扭转作为转子速度和轮毂入射角的函数而被动地变化。 对于具有适当尺寸和位置的惯性,扭转变化使得在宽范围的操作条件下保持高的转子效率。 同时实现叶片的令人满意的动态行为,包括循环音调响应和颤振电阻。

    Vertical Axis Turbine
    95.
    发明申请
    Vertical Axis Turbine 审中-公开
    垂直轴汽轮机

    公开(公告)号:US20080260532A1

    公开(公告)日:2008-10-23

    申请号:US11791868

    申请日:2005-11-23

    申请人: Matthew Luethi

    发明人: Matthew Luethi

    IPC分类号: F03D3/06 F03D7/06 F03D9/00

    摘要: A turbine with a vertical axis of rotation is described, with particular reference to a wind powered embodiment. It is advantageous to ensure that a turbine rotates at a substantially constant speed despite variations in the driving force and to ensure that the turbine is not damaged when the driving force is excessive. The turbine includes a plurality of turbine blades arranged about a central axis, with each turbine blade being pivotally mounted towards its outer periphery about an axis substantially parallel to the central axis. A biasing element biases the inner periphery of the turbine blades towards the central axis. As the speed of rotation of the turbine increases, the blades swing out of the wind and there center of gravity moves away from the central axis, tending to slow the speed of rotation.

    摘要翻译: 具体参考风力发电的实施例,描述了具有垂直旋转轴线的涡轮机。 有利的是,尽管驱动力的变化,涡轮机以基本恒定的速度旋转,并且确保当驱动力过大时涡轮机不被损坏。 涡轮机包括围绕中心轴线布置的多个涡轮机叶片,每个涡轮叶片围绕基本上平行于中心轴线的轴线朝向其外周边枢转地安装。 偏置元件偏压涡轮机叶片的内周边朝向中心轴线。 随着涡轮机旋转速度的增加,叶片摆脱风向并且重心移动远离中心轴线,倾向于减慢旋转速度。

    Methods and devices for improving efficiency of wind turbines in low wind speed sites
    96.
    发明申请
    Methods and devices for improving efficiency of wind turbines in low wind speed sites 审中-公开
    提高风力发电机组低风场效率的方法和装置

    公开(公告)号:US20070205603A1

    公开(公告)日:2007-09-06

    申请号:US11366976

    申请日:2006-03-03

    申请人: Karl Appa Surl Appa

    发明人: Karl Appa Surl Appa

    IPC分类号: F03D9/00

    摘要: “The present invention is for an apparatus and method for a passive pitchable device for wind turbines comprising: a camshaft having cam grooves engraved; a cylindrical shell; an axial compression spring; said blade assembly and said cylindrical shell are fastened together by screws; a plurality of balls that roll along said cam grooves, and convert the axial displacement to rotation or pitch angle; and wherein the passive pitchable device ensures said blades are at the optimum angle of incidence in the stationary position; as the rotor turns, the net force between centrifugal force on said blade and the resistant force from said compression spring causes the device to move axially outward while rotating to adjust the pitch of the rotor blade so that angle of incidence is optimal for the given wind speed; as the wind speed exceeds the design speed and the centrifugal force on the rotor blade continues to increase, the device continues the move axially outward while rotating in the opposite direction as to adjust the pitch of the blade in the opposite direction so that the rotor performance is controlled and severe dynamic loads are avoided”.

    摘要翻译: “本发明涉及一种用于风力涡轮机的被动可调节装置的装置和方法,包括:具有雕刻的凸轮槽的凸轮轴;圆柱形壳体;轴向压缩弹簧;所述叶片组件和所述圆柱形壳体通过螺钉紧固在一起; 多个滚珠沿着所述凸轮槽滚动,并将轴向位移转换成旋转角或俯仰角;并且其中所述被动可调节装置确保所述叶片在所述静止位置处于最佳入射角;当所述转子转动时,所述净力 在所述叶片上的离心力和来自所述压缩弹簧的抵抗力之间使得装置在旋转的同时轴向向外移动以调节转子叶片的间距,使得入射角对于给定的风速是最佳的;随着风速超过 设计速度和转子叶片上的离心力继续增加,装置在向对面旋转的同时继续轴向移动 以便沿相反方向调整叶片的间距,从而控制转子性能并避免严重的动态载荷。

    Apparatus for generating power using wind energy
    97.
    发明申请
    Apparatus for generating power using wind energy 失效
    使用风能发电的装置

    公开(公告)号:US20020024222A1

    公开(公告)日:2002-02-28

    申请号:US09927311

    申请日:2001-08-13

    发明人: Keun-Suk Jang

    IPC分类号: H02P009/04 F03D009/00

    摘要: Disclosed is an apparatus for generating power using wind energy, which can automatically adjust the angle of blades in response to the force of wind applied to those blades, thereby achieving a maximum utilization of wind energy. The apparatus includes connecting shafts arranged around a boss and rotatably supported by the boss, each connecting shaft extending radially and supporting an associated one of blades, pinions each fitted around the associated connecting shaft to rotate along with the associated connecting shaft, rack housings each fixedly mounted to the boss near the associated pinion, rack gears each slidably received in the associated rack housing and engaged with the associated pinion, springs each fitted around a portion of the associated rack gear extending beyond the rack housing receiving the associated rack gear and adapted to urge the associated rack gear toward an end of the associated rack gear protruded from the associated rack housing, and spring force adjusting knobs each threadedly coupled to the protruded end of the associated rack gear and adapted to adjust a spring force of the associated spring. Each blade is angularly shifted about an axis orthogonal to a rotating shaft for the blades in response to a variation in a pressure of wind applied to the blade.

    摘要翻译: 公开了一种利用风能发电的装置,其能够响应于施加到这些叶片的风的力自动调节叶片的角度,从而实现风能的最大利用。 该装置包括连接轴,其布置在凸台周围并由凸台可旋转地支撑,每个连接轴径向延伸并且支撑相关联的一个叶片,各自安装在相关联的连接轴上的小齿轮与相关联的连接轴一起旋转, 安装在相关联的小齿轮附近的凸台上,齿条每个都可滑动地容纳在相关联的齿条壳体中并与相关的小齿轮啮合,弹簧各自安装在延伸超过齿条壳体的相关齿条的一部分上, 将相关联的齿条推向从相关联的齿条壳体突出的相关齿条的端部,以及弹簧力调节旋钮,每个螺纹连接到相关联的齿条的突出端并适于调节相关弹簧的弹簧力。 响应于施加到叶片的风力的变化,每个叶片围绕与叶片的旋转轴正交的轴线成角度地移动。

    Ram air turbine with secondary governor
    98.
    发明授权
    Ram air turbine with secondary governor 失效
    具有次级调速器的Ram空气涡轮

    公开(公告)号:US5487645A

    公开(公告)日:1996-01-30

    申请号:US341718

    申请日:1994-11-18

    申请人: Steven R. Eccles

    发明人: Steven R. Eccles

    IPC分类号: F03D7/02 F01D7/02

    摘要: A ram air turbine is provided for use in driving electric and/or hydraulic power systems in an aircraft, wherein the ram air turbine includes primary and secondary speed control governors. The primary governor includes centrifugal flyweights for cam-actuated adjustment of the pitch angle of a turbine blade or blades, within a selected adjustment range, to achieve substantially constant turbine speed in response to varying air speed and/or load. The secondary governor preloads the turbine blade or blades to a selected midrange pitch angle in the at-rest condition, wherein the midrange pitch angle is chosen for faster turbine acceleration on deployment to the desired full-speed rotation. The secondary governor controls blade pitch angle until the turbine reaches a selected rotational speed, after which the primary governor regulates and adjusts blade pitch angle within the selected adjustment range.

    摘要翻译: 提供了一种用于驱动飞行器中的电动和/或液压动力系统的冲压空气涡轮机,其中所述压头空气涡轮机包括主和二速调速器。 主调速器包括用于在所选择的调节范围内用于凸轮驱动调节涡轮机叶片或叶片的俯仰角的离心飞轮,以响应于变化的空气速度和/或负载实现基本上恒定的涡轮转速。 次级调速器在静止状态下将涡轮叶片或叶片预加载到选定的中间俯仰角,其中选择中间俯仰角用于在部署到期望的全速旋转时更快的涡轮加速。 次级调速器控制叶片桨距角,直到涡轮机达到选定的转速,之后主调节器调节并调整所选择的调节范围内的叶片桨距角。

    Vertical windmill with omnidirectional diffusion
    99.
    发明授权
    Vertical windmill with omnidirectional diffusion 失效
    垂直风车全向扩散

    公开(公告)号:US5057696A

    公开(公告)日:1991-10-15

    申请号:US645968

    申请日:1991-01-25

    申请人: Robert N. Thomas

    发明人: Robert N. Thomas

    IPC分类号: F03D3/02 F03D3/04 F03D7/06

    摘要: A vertical windmill employing aerodynamic lift includes stators that form an omnidirectional diffuser and can rotate out of the wind to reduce the destructive tendencies in high winds. A braking mechanism included in the windmill uses rotation of the airfoils to reduce the lift caused by the wind and disengagement of the airfoils to reduce nearly all lift on the airfoils. Centrifugal force is used to activate the brake in high winds, both to slow the rotor speed and, in extreme winds, to stop the rotor. A motor is provided to drive the windmill to simplify controls and increase energy production.

    摘要翻译: 使用空气动力升降机的立式风车包括形成全向扩散器的定子,可以旋转出风,以减少大风中的破坏倾向。 包括在风车中的制动机构使用翼型件的旋转来减少由风引起的升力和翼型件的分离,以减少翼型件上几乎所有的升力。 离心力用于在大风中启动制动器,以减慢转子速度,并在极端风中停止转子。 提供电动机来驱动风车以简化控制并增加能量产生。

    Wind motors and aerogenerators
    100.
    发明授权
    Wind motors and aerogenerators 失效
    风力发电机和风力发电机

    公开(公告)号:US4641039A

    公开(公告)日:1987-02-03

    申请号:US648174

    申请日:1984-08-30

    申请人: Jean Carre

    发明人: Jean Carre

    IPC分类号: F03D7/02 F03D7/04

    摘要: An aerogenerator or wind motor comprises a variable pitch propeller rotor. It comprises compensation means (13) which are sensitive to the deceleration of the rotor to automatically exert on each blade (3), in case of deceleration of the rotor, a force which is substantially equal and opposed to the perturbating force generated by the kinetic energy of the rear or unbalanced mass of the blade.

    摘要翻译: PCT No.PCT / FR83 / 00268 Sec。 371日期1984年8月30日 102(e)日期1984年8月30日PCT提交1983年12月30日PCT公布。 公开号WO84 / 02752 日期1984年7月19日。风力发电机或风力发电机包括可变螺距螺旋桨转子。 它包括补偿装置(13),其在转子减速的情况下,对转子的减速度敏感以自动施加到每个叶片(3)上,该力基本相等并且与由动力学产生的扰动力相反 叶片的后部或不平衡质量的能量。