Method and system for detecting a crack on a turbomachine blade
    3.
    发明授权
    Method and system for detecting a crack on a turbomachine blade 有权
    用于检测涡轮机叶片上的裂纹的方法和系统

    公开(公告)号:US08074499B2

    公开(公告)日:2011-12-13

    申请号:US12644327

    申请日:2009-12-22

    IPC分类号: G01N29/04

    摘要: Embodiments of the present invention may provide real-time monitoring of a compressor section to determine the possibility of a crack forming on a rotating blade. The present invention does not require the shutdown of the machine. The present invention may be configured to automatically raise an alarm if the acoustic signature of the compressor changes in way that may be consistent with the cracking of a blade.

    摘要翻译: 本发明的实施例可以提供对压缩机部分的实时监测,以确定在旋转叶片上形成裂纹的可能性。 本发明不需要关机。 本发明可以被配置为如果压缩机的声学特征以与叶片的开裂相一致的方式改变则自动地引起报警。

    WIND TURBINE BLADE PLANFORMS WITH TWISTED AND TAPERED TIPS
    4.
    发明申请
    WIND TURBINE BLADE PLANFORMS WITH TWISTED AND TAPERED TIPS 有权
    风力涡轮机叶片具有双向和带状提示

    公开(公告)号:US20090297355A1

    公开(公告)日:2009-12-03

    申请号:US12129997

    申请日:2008-05-30

    IPC分类号: F01D5/14 F03D11/00

    摘要: A blade for a wind turbine includes a total backward twist of between approximately 6 degrees and approximately 15 degrees between an outer approximately 1 percent to 10 percent of a rotor radius of the blade; and an approximate planform distribution within the following ranges r/Rc/R(LE)c/R(TE) .960.60 to 0.65%−1.42 to −1.34% .9680.54 to 0.59%−1.31 to −1.34% .9740.39 to 0.58%−1.36 to −1.22% .98060.13 to 0.57%−1.45 to −1.06% .9856−0.23 to 0.56%  −1.56 to −0.74% .9906−0.76 to 0.55%  −1.74 to −0.24% .9956−1.44 to 0.54%  −1.99 to 0.23%   1.00−2.17 to 0.54%  −2.27 to 0.44%   where “r/R” is an approximate normalized distance outward from a center of rotation of the blade along a span of the blade; and “c/R(LE)” and “c/R(TE)” are approximate relative positions of a leading (LE) and trailing edge (TE) of a chord “c” expressed as a percentage of a distance outward from the center of rotation at each r/R.

    摘要翻译: 用于风力涡轮机的叶片包括在叶片的转子半径的外部约1%至10%之间的大约6度与大约15度之间的总后向扭转; 和在以下范围内的近似平面分布r / R c / R(LE)c / R(TE).96 0.60至0.65%-1.42至-1.34%.968 0.54至0.59%-1.31至-1.34%.974 0.39至0.58%-1.36至-1.22%.9806 0.13至0.57%-1.45至-1.06%.9856 -0.23至0.56%-1.56至-0.74%.9906 -0.76至0.55%-1.74至-0.24%.9956 -1.44至0.54%-1.99至0.23%1.00 -2.17至0.54%-2.27至0.44%,其中“r / R”是从叶片沿叶片的跨度的旋转中心向外的近似归一化距离; 和“c / R(LE)”和“c / R(TE)”是弦“c”的前导(LE)和后沿(TE)的近似相对位置,表示为距离 每个r / R处的旋转中心。

    Wet Active Chevron Nozzle For Controllable Jet Noise Reduction
    9.
    发明申请
    Wet Active Chevron Nozzle For Controllable Jet Noise Reduction 有权
    湿活动雪佛龙喷嘴可控喷射降噪

    公开(公告)号:US20080078159A1

    公开(公告)日:2008-04-03

    申请号:US11536790

    申请日:2006-09-29

    IPC分类号: F02C7/08

    摘要: Disposed at or toward the trailing edge of one or more nozzles associated with a jet engine are injection ports which can selectively be made to discharge a water stream into a nozzle flow stream for the purpose of increasing turbulence in somewhat of a similar fashion as mechanically disposed chevrons have done in the known art. Unlike mechanically disposed chevrons of the known art, the fluid flow may be secured thereby increasing the engine efficiency. Various flow patterns, water pressures, orifice designs or other factors can be made operative to provide desired performance characteristics.

    摘要翻译: 在与喷气发动机相关联的一个或多个喷嘴的后缘处或朝向与喷气发动机相关联的一个或多个喷嘴的后缘处的喷射口是可以选择性地将水流排放到喷嘴流动流中的注入口,以便以类似于机械设置的方式增加湍流 人字纹已经在已知的艺术中完成。 与已知技术的机械设置的人字形不同,可以确保流体流动,从而提高发动机效率。 可以使各种流动模式,水压力,孔口设计或其他因素可操作以提供期望的性能特征。

    Wet active chevron nozzle for controllable jet noise reduction
    10.
    发明授权
    Wet active chevron nozzle for controllable jet noise reduction 有权
    湿式活性人字形喷嘴,可控制喷射噪音降低

    公开(公告)号:US08015819B2

    公开(公告)日:2011-09-13

    申请号:US11536790

    申请日:2006-09-29

    IPC分类号: F02K1/00

    摘要: Disposed at or toward the trailing edge of one or more nozzles associated with a jet engine are injection ports which can selectively be made to discharge a water stream into a nozzle flow stream for the purpose of increasing turbulence in somewhat of a similar fashion as mechanically disposed chevrons have done in the known art. Unlike mechanically disposed chevrons of the known art, the fluid flow may be secured thereby increasing the engine efficiency. Various flow patterns, water pressures, orifice designs or other factors can be made operative to provide desired performance characteristics.

    摘要翻译: 在与喷气发动机相关联的一个或多个喷嘴的后缘处或朝向与喷气发动机相关联的一个或多个喷嘴的后缘处的喷射口是可以选择性地将水流排放到喷嘴流动流中的注入口,以便以类似于机械设置的方式增加湍流 人字纹已经在已知的艺术中完成。 与已知技术的机械设置的人字形不同,可以确保流体流动,从而提高发动机效率。 可以使各种流动模式,水压力,孔口设计或其他因素可操作以提供期望的性能特征。