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    SHAPE CHANGING AIRCRAFT BLADE
    111.
    发明申请
    SHAPE CHANGING AIRCRAFT BLADE 审中-公开

    公开(公告)号：US20190118935A1

    公开(公告)日：2019-04-25

    申请号：US15792542

    申请日：2017-10-24

    Applicant: General Atomics Aeronautical Systems, Inc.

    Inventor： Robert Daniel Love ,  John Angely Geriguis ,  Steven Michael Ehlers

    IPC: B64C11/44 ,  B64D27/24

    Abstract: Features for a tail-sitter aircraft having efficiently designed propulsive elements are disclosed. The aircraft may have a tail with landing mounts to support the aircraft in a vertical position for takeoff and landing. The aircraft may have a hybrid propulsion system including an electric power source, such as a generator and an electric motor, and a prime power subsystem, such as an internal combustion engine. The electric and prime power subsystems may be used controllably in varying amounts depending on the phase of flight, such as takeoff, horizontal flight, landing, or maneuvers. The aircraft may have blades with piezo elements to provide shape-changing capability to the blade. The shape of the blade, such as the pitch and/or twist, may be controllably changed for optimal efficiency with the blade depending on phase of flight. The blade shape may be changed from a rotor-like shape during takeoff and landing, to a propeller-like shape during horizontal flight.

    Rotor assembly and method of manufacturing
    112.
    发明授权
    Rotor assembly and method of manufacturing 有权

    公开(公告)号：US10177618B2

    公开(公告)日：2019-01-08

    申请号：US15070833

    申请日：2016-03-15

    Applicant: GENERAL ATOMICS

    Inventor： William P. Creedon ,  George T. Santamaria ,  John Charles Hirschy Wick

    IPC: H02K1/27 ,  H02K1/28 ,  H02K9/04 ,  H02K15/03

    Abstract: Some embodiments provided rotor assemblies, comprising: a rotor core barrel comprising a wall extending, and at least two compression bridges each formed in the wall proximate one of the lateral ends and separated by a distance; an array of a plurality of magnets positioned on and spaced along the wall between the compression bridges and about a circumference of the rotor core barrel; and one or more pre-stress wraps wrapped over the plurality of magnets and about the rotor core barrel along at least a portion of a length of the rotor core barrel between the compression bridges, wherein the compression bridges enable radial compression deflection, induced by radial compression of the rotor core barrel by the one or more pre-stress wraps, of the wall of the rotor core barrel at the compression bridges relative to the wall of the rotor core barrel proximate the lateral ends.

    MULTI-LEVEL HIGH-SPEED ADJUSTABLE SPEED DRIVE
    116.
    发明申请
    MULTI-LEVEL HIGH-SPEED ADJUSTABLE SPEED DRIVE 审中-公开

    公开(公告)号：US20170264226A1

    公开(公告)日：2017-09-14

    申请号：US15067448

    申请日：2016-03-11

    Applicant: General Atomics

    Inventor： George Thomas Santamaria

    IPC: H02P25/22

    Abstract: A multi-level high-speed adjustable speed drive has a plurality of modular multilevel, 3-phase inverter bridges, wherein the multilevel, 3-phase inverter bridges operate with fundamental frequency, f, wherein the multilevel, 3-phase inverter bridges include at least three levels, wherein the multilevel, 3-phase inverter bridges operate in Pulse-Width Modulation (PWM) mode with 9 to 21× or operating in Fundamental Frequency Mode (FFM), wherein inverter commutation frequency equals the fundamental frequency, wherein the multilevel, 3-phase inverters operate with split phase such that one group is displaced from the other by an angle, θ=60°/q, wherein the phase displacement of a harmonic component of order n between groups, θn is nθ/q; a high-speed polyphase motor with phases arranged in q 3-phase groups; and electromagnetic means for blocking selected groups of harmonics while passing components at fundamental frequency, f, wherein the electromagnetic means includes coils carrying motor current linked by a magnetic core, wherein the electromagnetic means is interposed between the plurality of modular multilevel, 3-phase inverter bridges and the high-speed polyphase motor.

    METHOD AND SYSTEM FOR GROWING MICROALGAE IN EXPANDING SLOPED PONDS
    117.
    发明申请
    METHOD AND SYSTEM FOR GROWING MICROALGAE IN EXPANDING SLOPED PONDS 审中-公开
    用于在扩展的波形中增长微波的方法和系统

    公开(公告)号：US20170044478A1

    公开(公告)日：2017-02-16

    申请号：US15258785

    申请日：2016-09-07

    Applicant: GENERAL ATOMICS

    Inventor： Kevin W. Downey ,  Kenneth R. Liberty ,  David A. Hazlebeck ,  Xiaoxi Wu

    IPC: C12M1/00 ,  C12M1/34

    CPC classification number: C12M23/18 ,  A01G33/00 ,  C12M21/02 ,  C12M23/58 ,  C12M41/36 ,  C12N1/12 ,  C12Q3/00 ,  Y02A40/88

    Abstract: A system for growing an algal culture to create a biomass includes a plurality of linearly interconnected, sloped-gradient, gravity-driven, raceway ponds. Surface areas of the ponds are sequentially increased in accordance with a multiplier, with the pond surface area of the last raceway pond in the sequence being as large as fifty acres. For the present invention, a fluid transfer system connects each raceway pond with every other raceway pond in the system. Control over each individual raceway pond is provided to monitor and evaluate algal culture in the pond. Based on this evaluation, the fluid transfer system is activated to provide water, nutrients and other additives to maintain predetermined growth parameters for algae in each of the raceway ponds.

    Abstract translation: 用于生长藻类培养物以产生生物质的系统包括多个线性相互连接的倾斜梯度重力驱动的滚道池。 池塘的面积按照乘数依次增加，最后一个赛道池塘的池塘表面积依次增加到五十英亩。 对于本发明，流体输送系统将每个滚道池与系统中的每个其它滚道池连接。 提供对每个个体跑道池的控制，以监测和评估池塘中的藻类养殖。 基于该评估，流体转移系统被激活以提供水，营养物和其它添加剂以维持每个滚道池中的藻类的预定生长参数。

    Pseudo-conductor antennas
    119.
    发明授权
    Pseudo-conductor antennas 有权
    伪导体天线

    公开(公告)号：US09543640B2

    公开(公告)日：2017-01-10

    申请号：US14503242

    申请日：2014-09-30

    Applicant: General Atomics

    Inventor： Rodolfo E. Diaz

    IPC: H01Q1/38 ,  H01Q1/36 ,  H01Q9/16 ,  H01Q7/00

    CPC classification number: H01Q1/364 ,  H01Q1/38 ,  H01Q7/00 ,  H01Q9/16

    Abstract: Techniques, devices and systems use pseudo-conductor materials as antennas to receive or radiate electromagnetic energy for communications and other applications. Methods of configuring an antenna can include, in some implementations, selecting a pseudo-conductor material having an electromagnetic constitutive property, wherein the electromagnetic constitutive property comprises a real part of the electromagnetic constitutive property that is greater than a corresponding imaginary part of the electromagnetic constitutive property; and forming the pseudo-conductor material into an antenna shape configured, upon being excited, to radiate emissions that satisfy a predefined antenna performance, such that the pseudo-conductor material formed in the antenna shape weakly guides an electromagnetic wave on the pseudo-conductor material using a leaky mode that is below cutoff to establish a field structure to radiate the emissions from the pseudo-conductor material that satisfy the antenna performance.

    Abstract translation: 技术，设备和系统使用伪导体材料作为天线来接收或辐射用于通信和其他应用的电磁能。 在一些实施方式中，配置天线的方法可以包括选择具有电磁本构特性的伪导体材料，其中电磁本构特性包括电磁本构特性的实部，其大于电磁本构的对应虚部 属性; 并且将伪导体材料形成为被配置为在被激发时辐射满足预定天线性能的发射的天线形状，使得形成在天线形状中的伪导体材料弱地引导伪导体材料上的电磁波 使用低于截止值的泄漏模式建立场结构以辐射来自满足天线性能的伪导体材料的发射。

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