Compact electromagnetic plasma ignition device
    11.
    发明授权
    Compact electromagnetic plasma ignition device 有权
    小型电磁等离子点火装置

    公开(公告)号:US08887683B2

    公开(公告)日:2014-11-18

    申请号:US12756920

    申请日:2010-04-08

    摘要: A quarter wave coaxial cavity resonator for producing corona discharge plasma from is presented. The quarter wave coaxial cavity resonator has a folded cavity made of opposing concentric cavity members that are nested together to form a continuous cavity ending in a aperture. A center conductor with a tip is positioned in the cavity. The folded cavity advantageously permits the coaxial cavity resonator to resonate at a lower operating frequency than an unfolded quarter wave coaxial cavity resonator of the same length. Embodiments of the quarter wave coaxial cavity resonator use narrower apertures to reduce radiative losses, and include center conductors that are reactive load elements, such as helical coils. When a radio frequency (RF) oscillation is produced in the quarter wave coaxial cavity resonator, corona discharge plasma is formed at the tip of the center conductor. The corona discharge plasma can be used to ignite combustible materials in combustion chambers of combustion engines.

    摘要翻译: 提出了一种用于产生电晕放电等离子体的四分之一波长的同轴谐振腔。 四分之一波同轴腔谐振器具有由相对的同心腔构件制成的折叠空腔,其嵌套在一起以形成终止于孔中的连续空腔。 具有尖端的中心导体位于空腔中。 折叠腔有利地允许同轴空腔谐振器在比相同长度的展开的四分之一波长的同轴谐振腔更低的工作频率下谐振。 四分之一波长同轴腔谐振器的实施例使用较窄的孔径以减少辐射损耗,并且包括作为无功负载元件(例如螺旋线圈)的中心导体。 当在四分之一波同轴腔谐振器中产生射频(RF)振荡时,在中心导体的尖端处形成电晕放电等离子体。 电晕放电等离子体可用于点燃内燃机燃烧室中的可燃材料。

    Quarter Wave Coaxial Cavity Igniter for Combustion Engines
    13.
    发明申请
    Quarter Wave Coaxial Cavity Igniter for Combustion Engines 失效
    用于燃烧发动机的四分之一波同轴腔点火器

    公开(公告)号:US20110146607A1

    公开(公告)日:2011-06-23

    申请号:US12721231

    申请日:2010-03-10

    IPC分类号: F02B19/00

    摘要: An apparatus and method for igniting combustible materials in a combustion chamber of a combustion engine using corona discharge plasma from a quarter wave coaxial cavity resonator. A tapered quarter wave coaxial cavity resonator is adapted to mate with the combustion chamber. The quarter wave coaxial cavity resonator is coupled with an energy shaping means, or waveform generator, that develops the appropriate waveform for triggering radio frequency oscillations in the quarter wave coaxial cavity resonator. A loop coupling is angularly positioned within the quarter wave coaxial cavity resonator to match impedances between the quarter wave coaxial cavity resonator and the energy shaping means, or waveform generator. Radio frequency oscillations produce a standing wave in the quarter wave coaxial cavity resonator and a corona discharge plasma develops near the center conductor. The corona discharge plasma developed near the center conductor ignites the combustible materials in the combustion chamber of the combustion engine.

    摘要翻译: 使用来自四分之一波同轴腔谐振器的电晕放电等离子体来点燃内燃机的燃烧室中的可燃材料的装置和方法。 锥形四分之一波长同轴腔谐振器适于与燃烧室配合。 四分之一波同轴腔谐振器与能量整形装置或波形发生器耦合,该能量整形装置或波形发生器产生用于触发四分之一波同轴腔谐振腔中的射频振荡的适当波形。 环耦合角度地定位在四分之一波同轴腔共振腔内,以匹配四分之一波同轴腔谐振器和能量整形装置或波形发生器之间的阻抗。 射频振荡在四分之一波同轴腔谐振器中产生驻波,在中心导体附近产生电晕放电等离子体。 在中心导体附近产生的电晕放电等离子体点燃了内燃机燃烧室内的可燃材料。

    Method and Apparatus for Passive Detection of Near-Surface Human-Scale Underground Anomalies Using Earth Field Measurements
    14.
    发明申请
    Method and Apparatus for Passive Detection of Near-Surface Human-Scale Underground Anomalies Using Earth Field Measurements 有权
    用地球场测量近地表人为地下异常的被动探测方法与装置

    公开(公告)号:US20140266211A1

    公开(公告)日:2014-09-18

    申请号:US14213704

    申请日:2014-03-14

    申请人: James E. Smith

    IPC分类号: E21B47/09

    摘要: Methods and apparatus are provided for passively detecting the presence of near-surface human-scale underground anomalies using earth field measurements. A sensor is used to measure at least one electric or magnetic component of the Earth's electromagnetic field at a frequency of 5 kHz or greater in proximity to the Earth's surface for a given area. The measured intensities are used to identify variations indicative of the presence of a near-surface human-scale underground anomaly. Measuring the intensity of at least one component of the electromagnetic field at a plurality of frequencies of 5 kHz or greater can be used to determine the depth and characteristic of a near-surface human-scale underground anomaly.

    摘要翻译: 提供了方法和装置,用于使用地球场测量来被动地检测近地表人为地下异常的存在。 传感器用于在给定区域的地球表面附近以5 kHz或更高的频率测量地球电磁场的至少一个电或磁分量。 测量的强度用于识别指示近地表人为地下异常的存在的变化。 可以使用5kHz或更大的多个频率测量电磁场的至少一个分量的强度来确定近地表人造地下异常的深度和特征。