Ignition System for a turbine engine
    1.
    发明授权
    Ignition System for a turbine engine 失效
    用于涡轮发动机的点火系统

    公开(公告)号:US5561350A

    公开(公告)日:1996-10-01

    申请号:US394694

    申请日:1995-02-24

    Abstract: A unipolar ignition of the invention provides a current waveform at the ignitor plug which initially rises relatively slowly, followed by a transition to a fast rising current which quickly peaks and thereafter slowly dissipates. Such a current waveform provides an initially hotter and longer lasting spark which does not harm the ignitor plug of the system or shorten its life expectancy. Neither does the spark create stress on the solid state circuitry which delivers the energy to the ignitor plug. To provide the foregoing spark and current characteristics, an inductor having a saturable core is in series with the ignitor plug, and it provides an initially high inductance which limits the rate of current rise at the plug as energy is transferred from an energy storage device to the plug. As the current through the inductor increases, its core begins to saturate and the effective inductance begins to decrease, allowing the current to rise more quickly. As energy is transferred to the ignitor plug. the increasing saturation, decreasing inductance and increasing current complement one another, causing the rate of current rise to increase quickly to a high value desirable for ignition. Related features of the invention provide for easy diagnostics of the spark and for timing an ignition sequence and providing a repetition rate which aids in a successful ignition.

    Abstract translation: 本发明的单极点火提供了在点火器插头处的电流波形,其最初上升得相对较慢,然后转变到快速上升的电流,并迅速消失。 这种电流波形提供了最初更持久且更持久的火花,其不会损害系统的点火塞或缩短其寿命。 火花也不会在将能量传递给点火器插头的固态电路产生应力。 为了提供上述火花和电流特性,具有可饱和磁芯的电感器与点火器插塞串联,并且其提供最初的高电感,其限制了当能量从能量存储装置传递到电池时电流上升的速率 插头 随着通过电感的电流增加,其核心开始饱和,有效电感开始下降,使电流上升得更快。 当能量传递到点火器插头时。 增加的饱和度,减小的电感和增加的电流相互补充,导致电流上升速率快速增加到点火所需的高值。 本发明的相关特征提供了对火花的简单诊断和点火顺序的定时并提供有助于成功点火的重复率。

    Vehicle simulation circuit for loop traffic signal control system
    2.
    发明授权
    Vehicle simulation circuit for loop traffic signal control system 失效
    车辆模拟电路环路交通信号控制系统

    公开(公告)号:US5057831A

    公开(公告)日:1991-10-15

    申请号:US529881

    申请日:1990-05-29

    CPC classification number: G08G1/042

    Abstract: The present invention provides a simulator which when used aboard a vehicle normally undetectable by a traffic signal control system (e.g. A.C. energized buried sensing loop type which detects predetermined changes in the characteristics of an electromagnetic field due to the presence of a detectable vehicle therewithin), will substantially simulate the characteristics of a detectable vehicle within its field and thereby cause any activation of the system. Operationally, the simulator derives an electrical signal from the field (e.g. via a receiving antenna), converts the electrical signal into a modified transmittable signal of an amplitude which when impressed upon the field (e.g. via a transmitting antenna) simulates electromagnetic influence of a detectable vehicle therewithin which is sensed by the detector circuitry and activates an associated traffic signal controller to provide the necessary signals (e.g. a green arrow) to allow safe and unobstructed traffic flow at an intersection.

    Abstract translation: 本发明提供了一种模拟器,当在通常由交通信号控制系统检测不到的车辆(例如,检测由于其中可检测车辆的存在而导致的电磁场的特性的预定变化)的AC通电埋地感测回路类型中使用时) 将基本上模拟其领域内的可检测车辆的特性,从而引起系统的任何激活。 在操作上,模拟器从场(例如经由接收天线)导出电信号,将电信号转换成幅度的修改的可传输信号,其在场上(例如,经由发射天线)模拟可检测的电场的电磁影响 其中由检测器电路感测并激活相关联的交通信号控制器以提供必要的信号(例如,绿色箭头),以允许交叉路口处的安全和无阻碍的交通流量。

    Method and apparatus for generating high voltage
    3.
    发明授权
    Method and apparatus for generating high voltage 有权
    用于产生高电压的方法和装置

    公开(公告)号:US06771519B2

    公开(公告)日:2004-08-03

    申请号:US10247938

    申请日:2002-09-20

    CPC classification number: H02M3/33507 H02M3/285

    Abstract: A power supply is described that comprises two or more flyback-type, DC-to-DC converters having substantially the same periods for their respective charge-discharge cycles; inputs from a common power source; outputs that are connected to a common output node and circuitry for controlling the charge-discharge cycles of the two or more converters so that the cycles of one converter is out of phase with respect to the charge-discharge cycles of at least one of the other converters.

    Abstract translation: 描述了一种电源,其包括两个或更多个反激式DC-DC转换器,其对于它们各自的充放电循环具有基本相同的周期; 来自公共电源的输入; 连接到公共输出节点的输出和用于控制两个或更多个转换器的充放电循环的电路,使得一个转换器的周期相对于另一个的至少一个的充电 - 放电周期而异相 转换器。

    Method and apparatus for generating a sustained arc at a sparking device
    4.
    发明授权
    Method and apparatus for generating a sustained arc at a sparking device 有权
    在火花装置上产生持续电弧的方法和装置

    公开(公告)号:US06484707B1

    公开(公告)日:2002-11-26

    申请号:US09676220

    申请日:2000-09-29

    CPC classification number: F02P3/02 F02P9/007

    Abstract: An apparatus is described for generating a sustained arc at a spark-generating device. A power converter charges an energy storage device to a voltage that will ionize an air gap of a spark device such as an igniter plug. After the voltage is applied to the spark device, the air gap is ionized and the energy from the energy storage device has been exhausted, energy continues to be supplied to the gap by the converter for a predetermined time period.

    Abstract translation: 描述了用于在火花发生装置处产生持续电弧的装置。 功率转换器将能量存储装置充电到将电离诸如点火器插头的火花装置的气隙的电压。 在将电压施加到火花装置之后,气隙被电离并且来自能量存储装置的能量已经耗尽,能量继续通过转换器向间隙供给预定时间段。

    Method and apparatus for controllably generating sparks in an ignition
system or the like
    5.
    发明授权
    Method and apparatus for controllably generating sparks in an ignition system or the like 失效
    用于在点火系统等中可控地产生火花的方法和装置

    公开(公告)号:US5754011A

    公开(公告)日:1998-05-19

    申请号:US502713

    申请日:1995-07-14

    Abstract: An apparatus for controllably generating sparks is provided. The apparatus includes a spark generating device; at least two output stages connected to the spark generating device; means for charging energy storage devices in the output stages and at least partially isolating each of the energy storage devices from the energy storage devices of the other output stages; and, a logic circuit for selectively triggering the output stages to generate a spark. Each of the output stages preferably includes: (1) an energy storage device to store the energy; (2) a controlled switch for selectively discharging the energy storage device; and (3) a network for transferring the energy discharged by the energy storage device to the spark generating device. In accordance with one aspect of the invention, the logic circuit, which is connected to the controlled switches of the output stages, can be configured to fire the stages at different times, in different orders, and/or in different combinations to provide the spark generating device with output pulses having substantially any desired waveshape and energy level to thereby produce a spark having substantially any desired energy level and plume shape at the spark generating device to suit any application.

    Abstract translation: 提供一种用于可控地产生火花的装置。 该装置包括火花发生装置; 连接到火花发生装置的至少两个输出级; 用于对输出级中的能量存储装置进行充电并且至少部分地将每个能量存储装置与其它输出级的能量存储装置隔离的装置; 以及用于选择性地触发输出级以产生火花的逻辑电路。 每个输出级优选地包括:(1)存储能量的能量存储装置; (2)用于选择性地排出能量存储装置的受控开关; 和(3)用于将由储能装置排出的能量转移到火花发生装置的网络。 根据本发明的一个方面,连接到输出级的受控开关的逻辑电路可以被配置为在不同的时间,不同的顺序和/或以不同的组合来触发级,以提供火花 输出脉冲具有基本上任何期望的波形和能级,从而产生在火花发生装置上具有基本上任何期望的能级和羽流形状的火花,以适应任何应用。

    Diagnostic device for gas turbine ignition system
    6.
    发明授权
    Diagnostic device for gas turbine ignition system 失效
    燃气轮机点火系统诊断装置

    公开(公告)号:US5523691A

    公开(公告)日:1996-06-04

    申请号:US458091

    申请日:1995-06-01

    Applicant: John R. Frus

    Inventor: John R. Frus

    Abstract: A device for diagnosing the state of health of an ignition system is provided, where the system includes at least one spark producing channel comprising an exciter, output circuit and igniter plug. The device provides a diagnosis of the state of health for both the exciter and igniter plug by monitoring the high energy pulses at the output of the exciter. By monitoring the ignition system at an intermediate point in the system such as the output of the exciter, the sensor and electronics of the device may be completely contained within the electronic environment of the exciter, thereby avoiding any need for attaching sensors at the output of the system adjacent to the igniter plug in order to diagnose the plug's state of health. As an alternative to the device being built into the ignition system, it can be incorporated into automatic test equipment that produces high energy pulses for delivery to an igniter plug to be tested. The device is capable of diagnosing failure of either the exciter or the igniter plug and may also be configured to detect the impending failure of the plug.

    Abstract translation: 提供了一种用于诊断点火系统的健康状态的装置,其中系统包括至少一个包括激励器,输出电路和点火器插头的火花发生通道。 该装置通过监测励磁机输出端的高能量脉冲来诊断激励器和点火器插头的健康状态。 通过监控系统中的点火系统,例如励磁机的输出,设备的传感器和电子设备可能完全包含在励磁机的电子环境中,从而避免了在传感器的输出端安装传感器的任何需要 该系统与点火器插头相邻,以便诊断插头的健康状况。 作为构建在点火系统中的装置的替代方案,它可以被并入自动测试设备中,该自动测试设备产生高能量脉冲,用于传送到待测试的点火器插头。 该装置能够诊断激励器或点火器插头的故障,并且还可以被配置为检测即将发生的插头故障。

    Apparatus and method for providing ignition to a turbine engine

    公开(公告)号:US5399942A

    公开(公告)日:1995-03-21

    申请号:US74654

    申请日:1993-06-08

    Applicant: John R. Frus

    Inventor: John R. Frus

    Abstract: A unipolar ignition of the invention provides a current waveform at the ignitor plug which initially rises relatively slowly, followed by a transition to a fast rising current which quickly peaks and thereafter slowly dissipates. Such a current waveform provides an initially hotter and longer lasting spark which does not harm the ignitor plug of the system or shorten its life expectancy. Neither does the spark create stress on the solid state circuitry which delivers the energy to the ignitor plug. To provide the foregoing spark and current characteristics, an inductor having a saturable core is in series with the ignitor plug, and it provides an initially high inductance which limits the rate of current rise at the plug as energy is transferred from an energy storage device to the plug. As the current through the inductor increases, its core begins to saturate and the effective inductance begins to decrease, allowing the current to rise more quickly. As energy is transferred to the ignitor plug, the increasing saturation, decreasing inductance and increasing current complement one another, causing the rate of current rise to increase quickly to a high value desirable for ignition. Related features of the invention provide for easy diagnostics of the spark and for timing an ignition sequence and providing a repetition rate which aids in a successful ignition.

    Position detection methods and apparatus for stepping motors
    8.
    发明授权
    Position detection methods and apparatus for stepping motors 失效
    位置检测方法和步进电机的设备

    公开(公告)号:US4074179A

    公开(公告)日:1978-02-14

    申请号:US587107

    申请日:1975-06-16

    CPC classification number: H02P8/12

    Abstract: Apparatus and controls for indicating the position of a stepping motor rotor as it successively steps and without the need for physically driven encoders or pulse generators, characterized by arrangements for sensing the current, or the rate of change of current, flowing in the motor windings. The intelligence indicating when the rotor reaches successive positions is applied advantageously to a utilization device such as a counter to signal the position of a driven load, and is used to control sequenced energization of the motor windings to create the advantages of a closed loop system but without a driven feedback device.

    Method and apparatus for controllably generating sparks in an ignition system or the like

    公开(公告)号:US07095181B2

    公开(公告)日:2006-08-22

    申请号:US10087154

    申请日:2002-03-01

    Abstract: An apparatus for controllably generating sparks is provided. The apparatus includes a spark generating device; at least two output stages connected to the spark generating device; means for charging energy storage devices in the output stages and at least partially isolating each of the energy storage devices from the energy storage devices of the other output stages; and, a logic circuit for selectively triggering the output stages to generate a spark. Each of the output stages preferably includes: (1) an energy storage device to store the energy; (2) a controlled switch for selectively discharging the energy storage device; and (3) a network for transferring the energy discharged by the energy storage device to the spark generating device. In accordance with one aspect of the invention, the logic circuit, which is connected to the controlled switches of the output stages, can be configured to fire the stages at different times, in different orders, and/or in different combinations to provide the spark generating device with output pulses having substantially any desired waveshape and energy level to thereby produce a spark having substantially any desired energy level and plume shape at the spark generating device to suit any application.

    Method and apparatus for offsetting power draw in a multiple channel
system
    10.
    发明授权
    Method and apparatus for offsetting power draw in a multiple channel system 失效
    用于在多通道系统中抵消功率消耗的方法和装置

    公开(公告)号:US6081074A

    公开(公告)日:2000-06-27

    申请号:US706073

    申请日:1996-08-30

    CPC classification number: F02P3/05 F02P15/008 F02P5/1506 Y02T10/46

    Abstract: An apparatus and method are disclosed for reducing peaks of operating power drawn from a power source by a multi-channel system. Each channel of the system drives a load and demands operating power from the power source in an intermittent manner. Power is supplied to the multi-channel system from the power source. Operating power from the power source is drawn in an intermittent manner into each of two or more channels of the multi-channel system. The drawing of the operating power is by the two or more channels so that occurrences of peak operating power launched in a first channel do not fully overlap the occurrences of peak operating power in a second channel.

    Abstract translation: 公开了一种用于减少由多通道系统从电源抽取的工作功率的峰值的装置和方法。 系统的每个通道驱动负载,并以间歇的方式要求来自电源的工作电力。 从电源向多通道系统供电。 来自电源的工作功率以间歇方式被拉入多通道系统的两个或更多个通道中的每一个。 操作功率的绘制是通过两个或更多个通道,使得在第一通道中发射的峰值操作功率的发生不完全重叠在第二通道中的峰值操作功率的出现。

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