Method and apparatus for cooling combustor liner and transition piece of a gas turbine
    1.
    发明授权
    Method and apparatus for cooling combustor liner and transition piece of a gas turbine 有权
    一种用于冷却燃气轮机的燃烧器衬套和过渡件的方法和装置

    公开(公告)号:US07010921B2

    公开(公告)日:2006-03-14

    申请号:US10709886

    申请日:2004-06-01

    IPC分类号: F02C1/00 F02G3/00

    摘要: A method and apparatus for cooling a combustor liner and transitions piece of a gas turbine include a combustor liner with a plurality of circular ring turbulators arranged in an array axially along a length defining a length of the combustor liner and located on an outer surface thereof; a first flow sleeve surrounding the combustor liner with a first flow annulus therebetween including a plurality of axial channels (C) extending over a portion of an aft end portion of the liner parallel to each other, the cross-sectional area of each channel either constant or varying along the length of the channel, the first flow sleeve having a plurality of rows of cooling holes formed about a circumference of the first flow sleeve for directing cooling air from the compressor discharge into the first flow annulus; a transition piece connected to the combustor liner and adapted to carry hot combustion gases to a stage of the turbine; a second flow sleeve surrounding the transition piece a second plurality of rows of cooling apertures for directing cooling air into a second flow annulus between the second flow sleeve and the transition piece; wherein the first plurality of cooling holes and second plurality of cooling apertures are each configured with an effective area to distribute less than 50% of compressor discharge air to the first flow sleeve and mix with cooling air from the second flow annulus.

    摘要翻译: 用于冷却燃烧器衬套和燃气轮机的过渡件的方法和设备包括具有多个圆环形湍流器的燃烧器衬套,所述多个环形湍流器沿着限定燃烧器衬套的长度并位于其外表面上的长度轴向排列; 环绕燃烧器衬套的第一流动套筒包括在衬套的后端部分的一部分上彼此平行延伸的多个轴向通道(C),每个通道的横截面面积是恒定的 或沿着所述通道的长度变化,所述第一流动套筒具有围绕所述第一流动套筒的圆周形成的多排冷却孔,用于将来自所述压缩机排出口的冷却空气引导到所述第一流动环空中; 连接到所述燃烧器衬套并适于将热燃烧气体运送到所述涡轮机的级的过渡件; 围绕所述过渡件的第二流动套筒,用于将冷却空气引导到所述第二流动套筒和所述过渡件之间的第二流动环空中的第二多排冷却孔; 其中所述第一多个冷却孔和第二多个冷却孔分别配置有有效区域以将小于50%的压缩机排出空气分配到所述第一流动套筒并与来自所述第二流动环的冷却空气混合。

    Mechanical resonance reducing
    2.
    发明授权
    Mechanical resonance reducing 失效
    机械共振降低

    公开(公告)号:US6067362A

    公开(公告)日:2000-05-23

    申请号:US842035

    申请日:1997-04-24

    IPC分类号: H04B15/00 H04R5/02

    CPC分类号: H04R5/02 H04B15/00

    摘要: An audio system for use with an electromechanical apparatus having a device coupled to the audio system, the device having a mechanical resonance stimulated by spectral components of vibrations radiated by the audio system, which includes an input for receiving audio signals and a gain reducer. The gain reducer includes a detector detecting in the audio signal the presence of the spectral components that excite the mechanical resonance and also includes a gain cell reducing the gain of said audio signals, either broadband or narrowband, responsive to the detector.

    摘要翻译: 一种用于具有耦合到音频系统的装置的机电装置的音频系统,该装置具有由音频系统辐射的振动的频谱分量刺激的机械共振,其包括用于接收音频信号的输入和增益减小器。 增益减小器包括检测器,其在音频信号中检测激发机械谐振的频谱分量的存在,并且还包括增益单元,其响应于检测器而减小所述音频信号(宽带或窄带)的增益。

    Surface debris removal apparatus
    6.
    发明授权
    Surface debris removal apparatus 失效
    表面碎屑清除装置

    公开(公告)号:US08443478B2

    公开(公告)日:2013-05-21

    申请号:US12690675

    申请日:2010-01-20

    IPC分类号: A47L11/24

    摘要: This invention relates to a mechanism for use in a device that comprises a system for collecting dirt and debris from a variety of floor and upholstery surfaces. In particular the mechanism lifts and directs unwanted debris particles to a waste reservoir for the purpose of cleaning and grooming floor surfaces. The debris collection mechanism can be, but is not limited to its use in a handle operated cordless motorized floor sweeper to collect and gather unwanted debris and dust. The device includes a head unit that incorporates two easily removable elongate cylindrical rotating cleaning bars that are driven such that they contra rotate, and are positioned close to one another at the forward region of the head unit. A removable debris reservoir, removable rechargeable power source and handle incorporating a device operation switch are also included.

    摘要翻译: 本发明涉及一种用于装置的机构,其包括用于从各种地板和室内装饰表面收集污物和碎屑的系统。 特别地,为了清洁和修饰地板表面,机构提升并将不期望的碎屑颗粒引导到废物储存器。 碎片收集机构可以但不限于其在手柄操作的无绳电动地板清扫机中的使用以收集和收集不想要的碎屑和灰尘。 该装置包括头部单元,其包括两个容易拆卸的细长圆柱形旋转清洁杆,其被驱动使得它们反转,并且在头单元的前部区域彼此靠近定位。 还包括一个可移除的碎片储存器,可拆卸的可再充电电源和装有操作开关的手柄。

    Methods and systems of variable extraction for compressor protection
    7.
    发明授权
    Methods and systems of variable extraction for compressor protection 有权
    用于压缩机保护的可变提取方法和系统

    公开(公告)号:US07784288B2

    公开(公告)日:2010-08-31

    申请号:US11276565

    申请日:2006-03-06

    IPC分类号: F02C9/00

    CPC分类号: F02C6/08 Y02E20/16 Y02E20/18

    摘要: A method of protecting a turbine compressor of a gas turbine engine that is part of an integrated gasification combined-cycle power generation system that includes an air separation unit that may include the steps of: (1) extracting an amount of compressed air that is compressed by the turbine compressor; (2) supplying the extracted amount of compressed air to the air separation unit; and (3) varying the amount of compressed air extracted from the turbine compressor based upon a desired compressor pressure ratio across the turbine compressor. The method further may include the step of supplying the air separation unit with a supply of compressed air from a main air compressor. The amount of compressed air supplied to the air separation unit by the main air compressor may be varied based upon the amount of compressed air extracted from the turbine compressor.

    摘要翻译: 一种保护燃气涡轮发动机的涡轮压缩机的方法,其是包括空气分离单元的一体化气化联合循环发电系统的一部分的气体涡轮发动机的一个方法,该空气分离单元可以包括以下步骤:(1)提取一定压缩的压缩空气 由涡轮压缩机; (2)将提取量的压缩空气供给到空气分离单元; 和(3)基于跨过涡轮压缩机的期望的压缩机压力比,改变从涡轮压缩机抽取的压缩空气的量。 该方法还可以包括向空气分离单元供应来自主空气压缩机的压缩空气的供给步骤。 主空气压缩机供给到空气分离单元的压缩空气量可以根据从涡轮压缩机抽取的压缩空气的量而变化。

    Microstructured optical waveguide having large optical nonlinearity
    9.
    发明授权
    Microstructured optical waveguide having large optical nonlinearity 失效
    具有大光学非线性的微结构光波导

    公开(公告)号:US06788862B2

    公开(公告)日:2004-09-07

    申请号:US10146199

    申请日:2002-05-14

    IPC分类号: G02B602

    摘要: A microstructured optical waveguide that supports the propagation of an optical signal of a desired wavelength is described. The optical waveguide includes a core region formed from an optically nonlinear material having a &ggr; of at least about 2.5×10−19 m2/W at 1260 nm. The optical waveguide also includes a cladding region surrounding the core region, the cladding region including a bulk material and a lattice of columns located in the bulk material, the lattice of columns having a pitch, and each column having a cross-sectional area. The pitch of the lattice and the areas of the columns are selected such that the dispersion of the optical signal at the desired wavelength is within the range of about −70 ps/nm-km to about 70 ps/nm-km.

    摘要翻译: 描述支持所需波长的光信号的传播的微结构光波导。 光波导包括由在1260nm具有至少约2.5x10 -2 m 2 / W的γ的光学非线性材料形成的芯区域。 光波导还包括围绕芯区域的包层区域,包层区域包括体材料和位于本体材料中的列的格子,柱的格子具有间距,并且每列具有横截面积。 选择晶格的间距和列的面积,使得在期望波长处的光信号的色散在约-70ps / nm-km至约70ps / nm-km的范围内。

    Injection control for a common rail fuel system

    公开(公告)号:US06732704B2

    公开(公告)日:2004-05-11

    申请号:US10214550

    申请日:2002-08-08

    IPC分类号: F02B300

    摘要: A system and method for controlling multiple fuel injections during a single combustion cycle for a multiple cylinder internal combustion engine having a common rail fuel distribution system determine the beginning of injection for the pilot and main injections based on crankshaft position while post injections are based on the main injection timing and an injector turn off delay determined using actual rail pressure. A rail pressure setpoint is determined based on current engine operating conditions including one or more fluid temperatures and current operating mode to provide more accurate injection control.