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1. 发明申请

US20100072932A1 Fail-Passive Electro-Mechanical Actuator Utilizing Dual Controllers And A Two-Phase Brushless Motor 审中-公开
标题翻译：使用双控制器和两相无刷电机的故障无源机电执行器
公开(公告)号：US20100072932A1
公开(公告)日：2010-03-25
申请号：US12512967
申请日：2009-07-30
申请人： Eric Seger , Gary L. Frederick , Richard A. Rose , Jerry D. Hielkema
发明人： Eric Seger , Gary L. Frederick , Richard A. Rose , Jerry D. Hielkema
IPC分类号： H02P6/12 , H02K3/28
CPC分类号： H02P6/085 , H02P6/14
摘要： A fail-passive electro-mechanical actuator utilizing dual controllers and a two-phase brushless motor is provided. In one embodiment, the invention relates to a fail passive system for controlling a two phase brushless motor, the system including the two phase brushless motor including a stator, a rotor, a first winding electromagnetically coupled to the rotor, and a second winding electromagnetically coupled to the rotor, first control circuitry coupled to the first winding, the first control circuitry configured to provide a first current to the first winding, second control circuitry coupled to the second winding, the second control circuitry to provide a second current to the second winding, wherein the first control circuitry is configured to receive a first commanded value from an external control circuit, wherein the second control circuitry is configured to receive a second commanded value from the external control circuit, wherein the first control circuitry is configured to receive a negated form of the second commanded value from the second circuitry, wherein the second control circuitry is configured to receive a negated form of the first commanded value from the first circuitry, and wherein the first control circuitry and the second control circuitry are configured to concurrently control a movement of the rotor.
摘要翻译：提供了一种使用双控制器和两相无刷电机的失效被动机电致动器。在一个实施例中，本发明涉及一种用于控制双相无刷电动机的故障无源系统，该系统包括两相无刷电动机，其包括定子，转子，电磁耦合到转子的第一绕组和第二绕组电磁耦合耦合到所述转子的第一控制电路耦合到所述第一绕组，所述第一控制电路被配置为向所述第一绕组提供第一电流，所述第二控制电路耦合到所述第二绕组，所述第二控制电路提供第二电流到所述第二绕组，其中所述第一控制电路被配置为从外部控制电路接收第一命令值，其中所述第二控制电路被配置为从所述外部控制电路接收第二命令值，其中所述第一控制电路被配置为接收否定的形成来自第二电路的第二命令值，其中第二控制电路被配置为从第一电路接收第一命令值的否定形式，并且其中第一控制电路和第二控制电路被配置为同时控制转子的运动。

2. 发明授权

US07307415B2 Contactless angular position sensor and method for sensing angular position of a rotatable shaft 失效
标题翻译：非接触角位置传感器和用于检测可旋转轴的角位置的方法
公开(公告)号：US07307415B2
公开(公告)日：2007-12-11
申请号：US10367459
申请日：2003-02-14
申请人： Eric Seger , Wesley Burandt , Andrew Steuer , Gary L. Frederick
发明人： Eric Seger , Wesley Burandt , Andrew Steuer , Gary L. Frederick
IPC分类号： G01B7/30
CPC分类号： G01D5/142 , G01D5/04
摘要： A contactless rotary shaft position sensor provides for precision computation of shaft angle for a wide range of input shaft rotational angles. The sensor includes two annular two-pole magnets which are connected by a precision, motion-transmitting gear train. An optional second gear train between one of the magnets and the input shaft can provide additional angular rotation scaling to accurately measure either fractional or a large number of multiple turns of the input shaft. The gear ratios are selected such that one of the magnets does not rotate more than one revolution. Pairs of ratiometric Hall-effect or magnetoresistive sensors provide differential voltage signals which are used for sensing angular position of each magnet over a full 360 degrees of rotation. The single-turn magnet provides an absolute, coarse indication of input shaft rotation with a typical accuracy of 2%. The gear ratio between the magnets produces several turns of the second magnet for each turn of the single-turn magnet. Since the gear ratio between the magnets is fixed, the angle sensed for the multi-turn magnet can be predicted from the position of the single-turn magnet. This is compared to the multi-turn magnet's actual sensed rotation. The result is an improvement in accuracy directly proportional to the gear ratio between the magnets. Computation of the individual magnet rotation angles and the input shaft angle is performed using a microprocessor and appropriate signal conditioning circuits. Utilizing two magnets, input shaft rotation can be accurately measured to within 0.1% of maximum range.
摘要翻译：非接触式旋转轴位置传感器可以在宽范围的输入轴旋转角度下精确计算轴角。该传感器包括两个通过精密的运动传动齿轮系连接的环形两极磁体。在一个磁体和输入轴之间的可选的第二齿轮系可以提供额外的角度旋转缩放以精确地测量输入轴的分数或多个匝数。选择齿轮比使得一个磁体不旋转超过一圈。成对的霍尔效应或磁阻传感器提供差分电压信号，用于检测每个磁体在全360度旋转角度的位置。单转磁铁提供绝对粗略的输入轴旋转指示，典型精度为2％。磁铁之间的齿轮比对于单匝磁铁的每一圈产生第二磁体的几圈。由于磁体之间的传动比是固定的，所以可以从单匝磁体的位置预测多匝磁体感测到的角度。这与多圈磁铁的实际感测旋转相比较。结果是与磁体之间的传动比成正比的精度提高。使用微处理器和适当的信号调节电路来执行单个磁体旋转角度和输入轴角度的计算。利用两个磁体，输入轴的旋转精度可以在最大范围的0.1％以内。

3. 发明授权

US07208939B2 Methods and apparatus for sensing angular position and speed of a rotatable shaft utilizing linearized annular magnet and commutated ratiometric hall sensors 失效
标题翻译：利用线性化的环形磁体和换向比例的霍尔传感器来感测旋转轴的角位置和速度的方法和装置
公开(公告)号：US07208939B2
公开(公告)日：2007-04-24
申请号：US10087322
申请日：2002-02-28
申请人： Gary L. Frederick , Richard A. Rose
发明人： Gary L. Frederick , Richard A. Rose
IPC分类号： G01B7/30
CPC分类号： G01D5/24438 , G01D5/145
摘要： A contactless rotary shaft rotation sensor includes a two-pole annular magnet attached directly to the shaft, pairs of diametrically opposed magnetic field sensors, and electronic processing circuits to produce linear output signals proportional to shaft speed and position. The annular magnet has two diametrically opposed poles on its outside circumference and is magnetized with a magnetic iron pole piece temporarily placed through its inner diameter to magnetically shape the poles and provide an extremely linear flux variation over plus and minus sixty degrees from the neutral position between the poles. Positioning one pair of magnetic field sensors around the magnet enables provision of a voltage signal that is proportional to the angular position and/or speed of the shaft through 120 degrees of rotation. Placing three pairs of magnetic field sensors around the magnet with 120-degrees of spacing provides three linear sensor output segments, each with a useful range of 120-degrees of shaft rotation. The magnetic field sensors are also used to signal the limits of each sensor pair's range and in conjunction with commutation logic, provide a linear angular position signal, or via piecewise differentiation provide a contactless analog tachometer signal. The commutation and signal processing functions are implemented with electronic logic and analog circuits or with a microcomputer.
摘要翻译：无接触旋转轴旋转传感器包括直接附接到轴的两极环形磁体，成对的直径相对的磁场传感器和电子处理电路，以产生与轴速度和位置成比例的线性输出信号。环形磁体在其外圆周上具有两个直径相对的磁极，并通过其内径暂时放置的磁铁磁极磁化，以磁极形成磁极，并且在中性位置之间提供超过零六度的非常线性的磁通量变化两极。将一对磁场传感器定位在磁体周围能够提供与轴的角位置和/或速度成比例的电压信号通过120度旋转。在磁体周围放置三对磁场传感器，间距为120度，可提供三个线性传感器输出段，每个磁场传感器的轴旋转角度为120度。磁场传感器还用于表示每个传感器对的范围的限制，并结合换向逻辑，提供线性角位置信号，或通过分段微分提供非接触式模拟转速计信号。换向和信号处理功能由电子逻辑和模拟电路或微型计算机实现。

4. 发明授权

US4246922A Fluid flow control apparatus 失效
标题翻译：流体流量控制装置
公开(公告)号：US4246922A
公开(公告)日：1981-01-27
申请号：US813605
申请日：1977-07-07
申请人： Gary L. Frederick , Paul R. Mohr
发明人： Gary L. Frederick , Paul R. Mohr
IPC分类号： B64D13/06 , F24F13/26 , G05D7/01 , G05D11/00 , G05D11/03
CPC分类号： G05D7/0126 , F24F13/26 , G05D11/006 , Y10T137/2562 , Y10T137/87338 , Y10T137/87643
摘要： A plurality of aspirating ejector nozzles are fed with primary fluid which is admitted successively past a modulating valve and throttling orifice to the inlet ports of the nozzles with a portion of the primary fluid being arranged for bypassing the nozzle past a bypass valve controlled by pressure responsive means subject to the pressure of the primary fluid upstream of the throttling orifice.
摘要翻译：多个抽吸喷射器喷嘴被供给主要流体，其被连续地通过调节阀和节流孔连接到喷嘴的入口端口，其中一部分主流体被布置用于绕过喷嘴经过由压力响应控制的旁通阀意味着经受节流孔上游的主要流体的压力。

5. 发明授权

US4116060A Mass flow sensor and method 失效
标题翻译：质量流量传感器和方法
公开(公告)号：US4116060A
公开(公告)日：1978-09-26
申请号：US860549
申请日：1977-12-14
申请人： Gary L. Frederick
发明人： Gary L. Frederick
IPC分类号： G01F1/32 , G01F1/86 , G01F15/04
CPC分类号： G01F1/3209 , G01F15/04
摘要： A true mass flow sensor utilizing a bluff body in the mass flow to generate periodic vortices therein, in combination with method and apparatus for adjusting generation of the vortices such that the frequency thereof is indicative of the mass flow.
摘要翻译：结合用于调节涡流的产生的方法和装置，使得其频率指示质量流量，利用质量流中的非流线体在其中产生周期性涡流的真实质量流量传感器。

6. 发明授权

US3958412A Fluidic gas turbine fuel control 失效
标题翻译：流体燃气轮机燃油控制
公开(公告)号：US3958412A
公开(公告)日：1976-05-25
申请号：US445763
申请日：1974-02-25
申请人： Gary L. Frederick
发明人： Gary L. Frederick
IPC分类号： F02C9/38 , F02C9/10
CPC分类号： F02C9/38 , F05D2200/13 , Y10T137/2071 , Y10T137/2142
摘要： A pure fluidic fuel control system for a gas turbine engine in which engine speed and compressor discharge pressure are sensed and utilized to control the flow of fuel to the engine. In the system an analog fluid signal proportional to engine speed is applied to two separate fluidic circuits, one circuit to generate a signal for controlling the engine during acceleration and the other for controlling the engine during steady state operation. The difference between these two signals is multiplied by a signal proportional to the compressor discharge pressure, the product signal being proportional to the necessary fuel flow for any engine condition. The product signal is amplified and applied to a fuel flow valve, the position of which is sensed and fed back to the input of the product signal amplifier for closed loop control.
摘要翻译：用于燃气涡轮发动机的纯流体燃料控制系统，其中感测并利用发动机速度和压缩机排出压力来控制向发动机的燃料流。在系统中，与发动机转速成比例的模拟流体信号被施加到两个独立的流体回路，一个电路在加速期间产生用于控制发动机的信号，另一个用于在稳态操作期间控制发动机。这两个信号之间的差异乘以与压缩机排放压力成比例的信号，产品信号与任何发动机状况的必要燃料流量成比例。产品信号被放大并施加到燃料流量阀，其位置被感测并反馈到产品信号放大器的输入端用于闭环控制。

7. 发明授权

US4945764A Constant gain laminar jet angular rate sensing device 失效
标题翻译：恒定增益层流射流角速度传感装置
公开(公告)号：US4945764A
公开(公告)日：1990-08-07
申请号：US281680
申请日：1988-12-09
申请人： Gary L. Frederick
发明人： Gary L. Frederick
IPC分类号： G01P9/00
CPC分类号： G01P9/00 , Y10T137/2065
摘要： A laminar jet angular rate sensor senses inertial angular rate in flight control and stabilization systems for aircraft and other vehicles. The sensor utilizes fluid as a power source and may be interfaced directly with fluid powered actuators for closed loop rate stabilization of the vehicle. To be practical, the rate sensor must exhibit consistent operation over the side range of supply fluid temperatures seen in a typical application. This invention involves apparatus for providing constant sensor gain over a wide range of fluid viscosity conditions. To achieve this, the pressure drop across the rate sensor is varied proportional to supply fluid viscosity to overcome viscous momentum losses in the jet and provide a constant gain characteristic. The specific apparatus of the invention utilizes a pressure regulator with a fluid viscosity sensor to accurately provide the required supply pressure proportional to fluid viscosity schedule.
摘要翻译：层流射流角速率传感器感测用于飞机和其他车辆的飞行控制和稳定系统中的惯性角速率。该传感器利用流体作为动力源，并且可以直接与流体动力的致动器接合，用于车辆的闭环速率稳定。为了实用，速率传感器必须在典型应用中看到的供应流体温度的侧面范围内表现出一致的操作。本发明涉及用于在宽范围的流体粘度条件下提供恒定传感器增益的装置。为了实现这一点，速率传感器上的压降与供应流体粘度成比例地变化，以克服喷嘴中的粘性动量损失并且提供恒定的增益特性。本发明的具体装置利用具有流体粘度传感器的压力调节器精确地提供与流体粘度计划成正比的所需供给压力。

8. 发明授权

US4655100A Rolling element jackscrew 失效
标题翻译：滚动元件起重螺丝
公开(公告)号：US4655100A
公开(公告)日：1987-04-07
申请号：US645872
申请日：1984-08-28
申请人： Gary L. Frederick , Robert A. Null
发明人： Gary L. Frederick , Robert A. Null
IPC分类号： F16H25/22
CPC分类号： F16H25/2266 , F16H25/2252 , Y10T74/19795
摘要： An improved rolling element jackscrew includes at least three planetary rollers interposed between an inner shaft and an outer nut, wherein one of the shaft and nut is formed with grooved threads of zero pitch and the other bears a spiral or pitched thread having a different number of threads per unit length. The different thread numbers on the nut and shaft are chosen to provide a pattern of nodal points at which the thread crests intersect, with the nodal points arranged along a plurality of equiangularly spaced axial contact lines corresponding with the number of rollers and defining positions of roller installation. The rollers each include axially spaced pairs of enlarged ribs defining axially spaced grooves meshing between the shaft and nut at the respective nodal points.
摘要翻译：一种改进的滚动元件起重螺旋桨包括插入在内轴和外螺母之间的至少三个行星滚子，其中所述轴和螺母中的一个形成有零螺距的槽螺纹，而另一个承载螺旋或螺纹，具有不同数量的每单位长度的螺纹。选择螺母和轴上的不同的螺纹数量以提供螺纹牙顶相交的节点的图案，其中节点沿着与辊的数量对应的多个等角间隔的轴向接触线布置并且限定辊的位置安装。辊子各自包括轴向间隔开的一对扩大的肋，其限定在相应节点处在轴和螺母之间啮合的轴向间隔开的凹槽。

9. 发明授权

US08662754B1 Damped air bearing 有权
标题翻译：阻尼空气轴承
公开(公告)号：US08662754B1
公开(公告)日：2014-03-04
申请号：US12758753
申请日：2010-04-12
申请人： Gary L. Frederick
发明人： Gary L. Frederick
IPC分类号： F16C32/06 , F16C17/10 , F16C3/16
CPC分类号： F16C29/025 , F16C32/0622
摘要： An air or gas bearing supports a moving mass on a thin column of gas which is partially constrained in a pressurized cavity. The gas to the cavity is supplied through a fluidic amplifier. Pressure in the thin supporting column above the bearing pad, or the position of the mass surface relative to the open end of the pressurized cavity, is sensed. The resulting feedback pressure signal is dynamically compensated to produce a pressure signal to the input ports of the fluidic amplifier which is a function of the velocity of the mass. The compensation network consists of orifices, or flow resistors, and volume cavities, or compressible fluid capacitors. The compensated feedback pressure is amplified by the fluidic amplifier to provide an output pressure to the bearing cavity which is indicative of and nearly proportional to the mass velocity perpendicular to the bearing pad and achieve a high degree of damping without use of extremely small orifices or complicated electromechanical damping means.
摘要翻译：空气或气体轴承支撑在部分限制在加压腔中的薄的气体柱上的移动质量。通过流体放大器供应到空腔的气体。感测轴承瓦上方的薄支撑柱中的压力，或质量表面相对于加压腔的开口端的位置。所产生的反馈压力信号被动态补偿，以产生一个压力信号到流体放大器的输入端口，这是质量的速度的函数。补偿网络由孔，流量电阻，体积腔或可压缩流体电容组成。补偿的反馈压力由流体放大器放大，以向轴承腔提供输出压力，其指示并垂直于轴承瓦块的质量速度几乎成比例，并且实现高度的阻尼，而不使用极小的孔口或复杂的机电阻尼装置。

10. 发明授权

US4320872A Anti-ice control system 失效
标题翻译：防冰控制系统
公开(公告)号：US4320872A
公开(公告)日：1982-03-23
申请号：US91028
申请日：1979-11-05
申请人： Gary L. Frederick
发明人： Gary L. Frederick
IPC分类号： B64D15/04 , G05D23/185 , G05D23/02
CPC分类号： B64D15/04 , G05D23/185
摘要： An anti-ice control system for controlling flow of heated air in response to the temperature of the heated air and ambient air.
摘要翻译：一种防冰控制系统，用于响应于加热的空气和环境空气的温度来控制加热空气的流动。

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