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89 条记录 (耗时 0.018 秒)

    Cylindrical spring with integral dynamic gas seal
    61.
    发明授权
    Cylindrical spring with integral dynamic gas seal 失效
    圆柱形弹簧，内置动态气体密封

    公开(公告)号：US06755027B2

    公开(公告)日：2004-06-29

    申请号：US10409760

    申请日：2003-04-09

    申请人： Steven L. Garrett

    发明人： Steven L. Garrett

    IPC分类号： F25B900

    CPC分类号： F03G7/002 ,  F02G1/0435 ,  F02G2243/54 ,  F25B9/145 ,  F25B2309/001 ,  F25B2309/1404 ,  F25B2309/1407

    摘要： One embodiment of a spring with an integral dynamic gas seal according to the present invention includes a spring with a pair of spaced-apart ends and a spring body extending therebetween. The spring body includes a perimeter wall formed of a first material and extending in a longitudinal direction. The wall has a plurality of openings defined therein. The openings are provided in a plurality of transverse tiers. Each tier includes a plurality of separate openings each extending along a portion of the perimeter. The openings in each tier are spaced apart so as to define a post between each adjacent opening such that each tier includes a plurality of posts. The openings in each tier are staggered with respect to the openings in adjacent tiers such that each of the openings in each tier overlie one of the posts in an adjacent tier. A closure member closes each of the openings such that the spring body is sealed. The closure member is formed of a second material having a different degree of flexibility than the first material.

    摘要翻译： 根据本发明的具有整体动态气体密封件的弹簧的一个实施例包括具有一对间隔开的端部的弹簧和在它们之间延伸的弹簧体。 弹簧体包括由第一材料形成并沿纵向方向延伸的周边壁。 该壁具有限定在其中的多个开口。 开口设置在多个横向层中。 每个层包括多个独立的开口，每个开口沿着周边的一部分延伸。 每个层中的开口间隔开，以便在每个相邻开口之间限定一个柱，使得每个层包括多个柱。 每个层中的开口相对于相邻层中的开口交错，使得每层中的每个开口覆盖相邻层中的一个柱。 闭合构件封闭每个开口，使得弹簧体被密封。 封闭构件由与第一材料具有不同程度的柔性的第二材料形成。

    TRAVELING-WAVE THERMOACOUSTIC ENGINES WITH INTERNAL COMBUSTION
    62.
    发明申请
    TRAVELING-WAVE THERMOACOUSTIC ENGINES WITH INTERNAL COMBUSTION 失效
    具有内部燃烧的行驶波形热发动机

    公开(公告)号：US20040093865A1

    公开(公告)日：2004-05-20

    申请号：US10387688

    申请日：2003-03-13

    发明人： Nathan Thomas Weiland ,  Ben T. Zinn ,  Gregory William Swift

    IPC分类号： F02G001/04

    CPC分类号： F03G7/002 ,  F02G1/0435 ,  F02G2243/54 ,  F25B9/145 ,  F25B2309/1403 ,  F25B2309/1405 ,  F25B2309/1406 ,  F25B2309/1407

    摘要： Thermoacoustic devices are disclosed wherein, for some embodiments, a combustion zone provides heat to a regenerator using a mean flow of compressible fluid. In other embodiments, burning of a combustible mixture within the combustion zone is pulsed in phase with the acoustic pressure oscillations to increase acoustic power output. In an example embodiment, the combustion zone and the regenerator are thermally insulated from other components within the thermoacoustic device.

    摘要翻译： 公开了热声装置，其中在一些实施例中，燃烧区使用可压缩流体的平均流向再生器提供热量。 在其他实施例中，在燃烧区域内的可燃混合物的燃烧与声压振荡同相脉冲以增加声功率输出。 在示例性实施例中，燃烧区域和再生器与热声装置内的其它部件热绝缘。

    Thermoacoustic refrigeration device and method
    63.
    发明申请
    Thermoacoustic refrigeration device and method 有权
    热声制冷装置及方法

    公开(公告)号：US20030101734A1

    公开(公告)日：2003-06-05

    申请号：US10277817

    申请日：2002-10-23

    申请人： UNIVERSITY OF MISSISSIPPI

    发明人： Richard Raspet ,  William V. Slaton ,  Craig J. Hickey ,  Robert A. Hiller ,  Henry E. Bass

    IPC分类号： F25B009/00

    CPC分类号： F25B9/145 ,  F02G1/0435 ,  F02G2243/54 ,  F03G7/002 ,  F04F7/00 ,  F25B9/006 ,  F25B2309/1402 ,  F25B2309/1407 ,  F25B2309/1416

    摘要： A thermoacoustic refrigeration device employs a gas-vapor mixture as the working fluid. As a result, the refrigeration device operates according to a modified thermoacoustic refrigeration cycle that adds a condensation-vaporization cycle to the thermoacoustic cycle. The resulting modified refrigeration cycle increases the efficiency of heat transport by harnessing the translational motion of the vapor, as well as the usual acoustic oscillations, to transport the heat energy from one end of a thermal stack to the other.

    摘要翻译： 热声制冷装置采用气体 - 蒸气混合物作为工作流体。 结果，制冷装置根据改进的热声制冷循环进行操作，该循环将冷凝汽化循环加到热声循环中。 所产生的改进的制冷循环通过利用蒸气的平移运动以及通常的声振荡来增加热传递的效率，以将热能从热堆的一端输送到另一端。

    High-efficiency moving-magnet loudspeaker
    64.
    发明授权
    High-efficiency moving-magnet loudspeaker 有权
    高效移动磁体扬声器

    公开(公告)号：US06307287B1

    公开(公告)日：2001-10-23

    申请号：US09521368

    申请日：2000-03-08

    申请人： Steven L. Garrett ,  Robert M. Keolian ,  Robert W. Smith

    发明人： Steven L. Garrett ,  Robert M. Keolian ,  Robert W. Smith

    IPC分类号： F03G700

    CPC分类号： F03G7/002 ,  F02G1/0435 ,  F02G2243/54 ,  F25B9/145 ,  F25B2309/1404 ,  G10K9/13 ,  G10K9/18 ,  H02K33/02

    摘要： A thermoacoustic driver incorporates a linear electrodynamic motor having electrical terminals and a moving part, a driver suspension housing, a piston, and a stiffness-enhancing device for raising the mechanical resonance frequency of the electrodynamic motor without reducing the piston stroke. The stiffness enhancement is accomplished by the use of specially optimized suspension spring structures and/or by attaching one or more electrical inductors to the electrical terminals of the driver. The stiffness enhancement using mechanical springs incorporates one or more starfish structures extending between the driver suspension housing and the piston and rigidly clamped to both. The starfish structures comprise radially extending legs, which are leaf springs or beams of varying width. The shape of the beams and the shape of the overall spring structure are optimized to enhance flexural or torsional stiffness and relieve arc tension within the constraints of cost-effectiveness. In one version, two modified triangular (trapezoidal) cantilever beams are connected through a straight middle section and form a bow-tie shaped beam.

    摘要翻译： 热声驱动器包括具有电端子和运动部件的线性电动马达，驱动器悬架壳体，活塞和用于提高电动马达的机械共振频率而不减小活塞冲程的刚度增强装置。 通过使用特别优化的悬架弹簧结构和/或通过将一个或多个电感器附接到驱动器的电端子来实现刚度增强。 使用机械弹簧的刚度增强结合了一个或多个在驱动器悬挂壳体和活塞之间延伸并且刚性地夹紧到两者的海星结构。 海星结构包括径向延伸的腿，其是板簧或不同宽度的梁。 优化梁的形状和整体弹簧结构的形状，以增强弯曲或扭转刚度，并在成本效益的限制内缓解电弧张力。 在一个版本中，两个改进的三角形（梯形）悬臂梁通过直的中间部分连接并形成弓形梁。

    Heat-driven acoustic cooling engine having no moving parts
    66.
    发明授权
    Heat-driven acoustic cooling engine having no moving parts 失效
    没有运动部件的热驱动声冷却发动机

    公开(公告)号：US4858441A

    公开(公告)日：1989-08-22

    申请号：US147126

    申请日：1988-01-21

    申请人： John C. Wheatley ,  Gregory W. Swift ,  Albert Migliori ,  Thomas J. Hofler

    发明人： John C. Wheatley ,  Gregory W. Swift ,  Albert Migliori ,  Thomas J. Hofler

    IPC分类号： F02G1/044 ,  F03G7/00 ,  F25B9/14

    CPC分类号： F02G1/0445 ,  F03G7/002 ,  F25B9/145 ,  F02G2243/52 ,  F02G2250/18 ,  F25B2309/1403 ,  F25B2309/1407 ,  F25B2309/1416

    摘要： A heat-driven acoustic cooling engine having no moving parts receives heat from a heat source. The acoustic cooling engine comprises an elongated resonant pressure vessel having first and second ends. A compressible fluid having a substantial thermal expansion coefficient and capable of supporting an acoustic standing wave is contained in the resonant pressure vessel. The heat source supplies heat to the first end of the vessel. A first heat exchanger in the vessel is spaced-apart from the first end and receives heat from the first end. A first thermodynamic element is adjacent to the first heat exchanger and converts some of the heat transmitted by the first heat exchanger into acoustic power. A second thermodynamic element has a first end located spaced-apart from the first thermodynamic element and a second end farther away from the first thermodynamic element than is its first end. The first end of the second thermodynamic element heats while its second end cools as a consequence of the acoustic power. A second heat exchanger is adjacent to and between the first and second thermodynamic elements. A heat sink outside of the vessel is thermally coupled to and receives heat from the second heat exchanger. The resonant pressure vessel can include a housing less than one-fourth wavelength in length coupled to a reservoir. The housing can include a reduced diameter portion communicating with the reservoir.

    摘要翻译： 没有移动部件的热驱动声冷却发动机从热源接收热量。 声学冷却发动机包括具有第一和第二端的细长谐振压力容器。 在共振压力容器中包含具有实质的热膨胀系数且能够支撑声驻波的可压缩流体。 热源将热量提供给容器的第一端。 容器中的第一热交换器与第一端间隔开并且从第一端接收热量。 第一热力学元件与第一热交换器相邻，并将由第一热交换器传输的一些热量转换成声功率。 第二热力学元件具有与第一热力学元件间隔开的第一端和远离第一热力学元件的第二端远离其第一端。 第二热力学元件的第一端加热，而其第二端作为声功率的结果而冷却。 第二热交换器与第一和第二热力学元件相邻并且位于第一和第二热力学元件之间。 容器外部的散热器热耦合到第二热交换器并从第二热交换器接收热量。 谐振压力容器可以包括耦合到储存器的长度小于四分之一波长的壳体。 壳体可以包括与储存器连通的直径减小的部分。

    Method and system of extracting energy from wind
    69.
    发明授权
    Method and system of extracting energy from wind 有权

    公开(公告)号：US09926914B2

    公开(公告)日：2018-03-27

    申请号：US14421515

    申请日：2012-08-13

    申请人： John R. Tuttle

    发明人： John R. Tuttle

    IPC分类号： F15B21/12 ,  F03D9/00 ,  F03G7/00 ,  F03D5/00

    CPC分类号： F03D9/00 ,  F03D5/00 ,  F03G7/00 ,  F03G7/002 ,  F15B21/12 ,  Y02E10/70

    摘要： Extracting energy from wind. At least some of the illustrative embodiments are methods including: directing fluid flow across an aperture of a nozzle in operational relationship with an resonant cavity, a central axis of the nozzle and the central axis of the resonant cavity nonconcentric, and the resonant cavity has a resonant frequency; creating pressure waves within the resonant cavity, the pressure waves created at least in part by vortices within the fluid flow across the aperture; and extracting energy from pressure waves within the resonant cavity.