Laser based ignition system for natural gas reciprocating engines, laser based ignition system having capability to detect successful ignition event; and distributor system for use with high-powered pulsed lasers
    1.
    发明授权
    Laser based ignition system for natural gas reciprocating engines, laser based ignition system having capability to detect successful ignition event; and distributor system for use with high-powered pulsed lasers 有权
    用于天然气往复式发动机的基于激光的点火系统,具有检测成功点火事件的能力的基于激光的点火系统; 以及用于大功率脉冲激光器的分配器系统

    公开(公告)号:US07114858B2

    公开(公告)日:2006-10-03

    申请号:US10940467

    申请日:2004-09-14

    IPC分类号: G02B6/36 F02B19/00 H01S3/123

    摘要: A laser based ignition system for stationary natural gas engines, a distributor system for use with high-powered lasers, and a method of determining a successful ignition event in a laser-based ignition system are provided. The laser based ignition (LBI) system for stationary natural gas engines includes a high power pulsed laser providing a pulsed emission output coupled to a plurality of laser plugs. A respective one of the plurality of laser plugs is provided in an engine cylinder. The laser plug focuses the coherent emission from the pulsed laser to a tiny volume or focal spot and a high electric field gradient at the focal spot leads to photoionization of the combustible mixture resulting in ignition.

    摘要翻译: 提供了一种用于固定天然气发动机的基于激光的点火系统,用于大功率激光器的分配器系统,以及确定基于激光的点火系统中的成功点火事件的方法。 用于固定天然气发动机的激光基点火(LBI)系统包括提供耦合到多个激光塞的脉冲发射输出的高功率脉冲激光器。 多个激光塞子中的相应一个设置在发动机气缸中。 激光插件将来自脉冲激光器的相干发射聚焦到微小的体积或焦斑,焦点处的高电场梯度导致可燃混合物的光电离导致点火。

    METHOD AND SYSTEM TO DISTRIBUTE HIGH-ENERGY LASER PULSES TO MULTIPLE CHANNELS
    2.
    发明申请
    METHOD AND SYSTEM TO DISTRIBUTE HIGH-ENERGY LASER PULSES TO MULTIPLE CHANNELS 失效
    将高能量激光脉冲分配到多个通道的方法和系统

    公开(公告)号:US20090133654A1

    公开(公告)日:2009-05-28

    申请号:US11945714

    申请日:2007-11-27

    IPC分类号: F02P23/04 F02P5/15

    摘要: A method and system to distribute high-power laser pulses to create sparks in individual cylinders of a multi-cylinder engine are provided. A laser provides laser output pulses. A distributor includes a linear array of mirrors with a respective mirror associated with one of the laser plugs. Each mirror is operatively controlled to move into a laser beam path to direct individual laser output pulses the associated laser plug for providing spark generation. The system enables correct cylinder firing order for predefined multi-cylinder firing sequences and allows for individual cylinder timing variation.

    摘要翻译: 提供了一种分配大功率激光脉冲以在多缸发动机的各个气缸中产生火花的方法和系统。 激光器提供激光输出脉冲。 分配器包括具有与其中一个激光插头相关联的相应反射镜的反射镜的线性阵列。 每个反射镜被可操作地控制以移动到激光束路径中,以引导单独的激光输出脉冲相关联的激光插头以提供火花发生。 该系统能够为预定义的多缸发动序列提供正确的气缸点火顺序,并允许单独的气缸正时变化。

    Method and system to distribute high-energy pulses to multiple channels
    3.
    发明授权
    Method and system to distribute high-energy pulses to multiple channels 失效
    将高能量脉冲分配到多个通道的方法和系统

    公开(公告)号:US07699033B2

    公开(公告)日:2010-04-20

    申请号:US11945714

    申请日:2007-11-27

    IPC分类号: F02B1/02

    摘要: A method and system to distribute high-power laser pulses to create sparks in individual cylinders of a multi-cylinder engine are provided. A laser provides laser output pulses. A distributor includes a linear array of mirrors with a respective mirror associated with one of the laser plugs. Each mirror is operatively controlled to move into a laser beam path to direct individual laser output pulses the associated laser plug for providing spark generation. The system enables correct cylinder firing order for predefined multi-cylinder firing sequences and allows for individual cylinder timing variation.

    摘要翻译: 提供了一种分配大功率激光脉冲以在多缸发动机的各个气缸中产生火花的方法和系统。 激光器提供激光输出脉冲。 分配器包括具有与其中一个激光插头相关联的相应反射镜的反射镜的线性阵列。 每个反射镜被可操作地控制以移动到激光束路径中,以引导单独的激光输出脉冲相关联的激光插头以提供火花发生。 该系统能够为预定义的多缸发动序列提供正确的气缸点火顺序,并允许单独的气缸正时变化。

    Portable LII based instrument and method for particulate characterization in combustion exhaust
    4.
    发明授权
    Portable LII based instrument and method for particulate characterization in combustion exhaust 失效
    便携式LII仪表和燃烧废气中微粒表征的方法

    公开(公告)号:US06700662B2

    公开(公告)日:2004-03-02

    申请号:US09767104

    申请日:2001-01-22

    IPC分类号: G01N1502

    CPC分类号: G01N21/718 G01N21/716

    摘要: An improved instrument and method are provided for particulate characterization in combustion exhausts. An instrument for measuring particles of combustion exhausts includes a laser for producing a high intensity laser pulse. A sample cell receives a combustion exhaust input and the high intensity laser pulse. At least one detector detects a signal generated by particles in said received combustion exhaust input. The detected signal includes laser induced incandescence (LII). Signal conditioning electronics is coupled to the detector and particle data is displayed during transient operation of a combustion engine. Data related to mass concentration, number density, and particle size of particles in the received combustion exhaust input is measured and displayed.

    摘要翻译: 提供改进的仪器和方法用于燃烧排气中的颗粒表征。 用于测量燃烧排气颗粒的仪器包括用于产生高强度激光脉冲的激光器。 样品池接收燃烧排气输入和高强度激光脉冲。 至少一个检测器检测由所述接收到的燃烧排放输入中的颗粒产生的信号。 检测到的信号包括激光诱导白炽灯(LII)。 信号调节电子器件耦合到检测器,并且在内燃机的瞬态操作期间显示颗粒数据。 测量并显示与接收的燃烧排气输入中的颗粒的质量浓度,数量密度和颗粒尺寸有关的数据。