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    • 8. 发明申请
    • ADVANCED LASER IGNITION SYSTEMS FOR GAS TURBINES INCLUDING AIRCRAFT ENGINES
    • 用于包括飞机发动机的气体涡轮机的先进激光点火系统
    • US20120131926A1
    • 2012-05-31
    • US12956191
    • 2010-11-30
    • Herbert KopecekSara Rocci DenisKeith Robert McManusMichael Breit
    • Herbert KopecekSara Rocci DenisKeith Robert McManusMichael Breit
    • F02C7/264F02P23/04
    • F02C7/264F02P23/04F23R2900/00006
    • A laser ignition system for an internal combustion engine, and more specifically a gas turbine engine, is provided. The system comprises at least one laser light source configured to generate a laser beam and an optical beam guidance component. The optical beam guidance component is configured to transmit the laser beam to irradiate on an oxygenated fuel mixture supplied into the combustion chamber at a region of highest ignitability to generate a combustor flame in a flame region. The system further includes an integrated control diagnostic component configured to detect at least a portion of a light emission and operable to control one or more combustion parameters based in part on the detected light emission. The system further includes additional enhanced ignition control configurations. A method for igniting a fuel mixture in an internal combustion engine is also presented.
    • 提供了一种用于内燃机,特别是燃气涡轮发动机的激光点火系统。 该系统包括被配置为产生激光束和光束引导部件的至少一个激光光源。 光束引导部件被配置为透射激光束以在最高可燃性的区域供应到燃烧室中的氧化燃料混合物照射以在火焰区域中产生燃烧器火焰。 该系统还包括集成控制诊断部件,其被配置为检测至少一部分发光并可操作以部分地基于检测到的光发射来控制一个或多个燃烧参数。 该系统还包括额外增强的点火控制配置。 还提出了一种用于点燃内燃机中的燃料混合物的方法。
    • 9. 发明申请
    • SYSTEM AND METHOD FOR REDUCING PRESSURE OSCILLATIONS WITHIN A GAS TURBINE ENGINE
    • 用于降低气体涡轮发动机内压力振荡的系统和方法
    • US20140007584A1
    • 2014-01-09
    • US13538836
    • 2012-06-29
    • Zekai HongJoel Meier HaynesKeith Robert McManusJohn Thomas Herbon
    • Zekai HongJoel Meier HaynesKeith Robert McManusJohn Thomas Herbon
    • F02C7/232
    • F02C7/232F02C9/26F05D2270/14F23R2900/00013
    • In one embodiment, a system for reducing pressure oscillations within a gas turbine engine includes at least one fuel injector configured to inject fuel into a combustor. The system also includes a valve fluidly coupled to the at least one fuel injector. The system further includes a controller communicatively coupled to the valve. The controller is configured to cycle the valve between an open position and a closed position at a first frequency and a first duty cycle while a magnitude of pressure oscillations within the combustor is less than a threshold value, to cycle the valve between the open position and the closed position at a second frequency and a second duty cycle while the magnitude of the pressure oscillations within the combustor is greater than or equal to the threshold value, and to adjust the second frequency based on a measured frequency of the pressure oscillations.
    • 在一个实施例中,用于减少燃气涡轮发动机内的压力振荡的系统包括构造成将燃料喷射到燃烧器中的至少一个燃料喷射器。 该系统还包括流体地联接到至少一个燃料喷射器的阀。 该系统还包括通信地联接到阀的控制器。 控制器被配置为在第一频率和第一占空比的情况下将阀在打开位置和关闭位置之间循环,同时燃烧器内的压力振荡的幅度小于阈值,以使阀在打开位置和 在第二频率和第二占空比下的关闭位置,同时燃烧器内的压力振荡的大小大于或等于阈值,并且基于测量的压力振荡频率来调节第二频率。