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    Fuel system acoustic feature to mitigate combustion dynamics for multi-nozzle dry low NOx combustion system and method
    1.
    发明授权
    Fuel system acoustic feature to mitigate combustion dynamics for multi-nozzle dry low NOx combustion system and method 有权
    燃料系统声学特征，以减轻多喷嘴干燥低NOx燃烧系统和方法的燃烧动力学

    公开(公告)号：US08322140B2

    公开(公告)日：2012-12-04

    申请号：US12651600

    申请日：2010-01-04

    申请人： Kwanwoo Kim ,  Fei Han ,  Shiva Srinivasan ,  Kapil Kumar Singh

    发明人： Kwanwoo Kim ,  Fei Han ,  Shiva Srinivasan ,  Kapil Kumar Singh

    IPC分类号： F02C1/00

    CPC分类号： F02C7/228 ,  F02C7/22 ,  F05D2240/128 ,  F05D2270/082 ,  F23R3/28 ,  F23R2900/00014 ,  Y10T29/49826

    摘要： A dry low NOx (DLN) fuel nozzle of a fuel system is provided and includes one or more downstream orifices formed to define a first fluid path along which fluid is directed to flow, an upstream orifice, located upstream from the one or more downstream orifices, formed to define a second fluid path along which the fluid is directed to flow and connecting passages disposed to fluidly couple the first and second fluid paths of the downstream and upstream orifices, respectively, to one another. At least one of a radial size and an axial location of the upstream orifice is set to cooperatively detune an acoustic impedance of the fuel system.

    摘要翻译： 提供燃料系统的干式低NOx（DLN）燃料喷嘴，并且包括一个或多个下游孔，其形成为限定流体被引导流动的第一流体路径，位于一个或多个下游孔的上游的上游孔 ，其被形成为限定流体被引导流过的第二流体路径和设置成将下游和上游孔口的第一和第二流体路径分别彼此流体耦合的连接通道。 上游孔的径向尺寸和轴向位置中的至少一个被设定为协调地使燃料系统的声阻抗失谐。

    TURBOMACHINE FUEL NOZZLE
    3.
    发明申请
    TURBOMACHINE FUEL NOZZLE 审中-公开
    涡轮燃料喷嘴

    公开(公告)号：US20110289929A1

    公开(公告)日：2011-12-01

    申请号：US12789820

    申请日：2010-05-28

    申请人： Abdul Rafey Khan ,  Kapil Kumar Singh

    发明人： Abdul Rafey Khan ,  Kapil Kumar Singh

    IPC分类号： F02C9/26 ,  F02C7/22

    CPC分类号： F23D11/24 ,  F23D11/38 ,  F23D2900/14482 ,  F23R3/28

    摘要： A turbomachine includes a compressor, a turbine operatively coupled to the compressor, and a combustor fluidly linking the compressor and the turbine. The combustor includes at least one fuel nozzle. The at least one fuel nozzle includes a flow passage including a body having first end that extends to a second end through at least one flow channel having a flow area. A fuel inlet is provided at the first end of the body. The fuel inlet is configured to receive at least one fuel. A fuel outlet is provided at the second end of the body. A control flow passage is fluidly connected to the body between the first and second ends. The control flow passage is configured and disposed to deliver a control flow into the fuel nozzle. The control flow establishes a selectively variable effective flow area of the flow passage.

    摘要翻译： 涡轮机包括压缩机，可操作地联接到压缩机的涡轮机和流体连接压缩机和涡轮机的燃烧器。 燃烧器包括至少一个燃料喷嘴。 所述至少一个燃料喷嘴包括流动通道，该流动通道包括主体，该主体具有通过具有流动区域的至少一个流动通道延伸到第二端的第一端。 燃料入口设置在主体的第一端。 燃料入口构造成容纳至少一种燃料。 燃料出口设置在主体的第二端。 控制流动通道在第一和第二端之间流体地连接到主体。 控制流路被构造和设置成将控制流输送到燃料喷嘴中。 控制流程建立了流路的选择性变化的有效流动面积。

    RESONATOR ASSEMBLY FOR MITIGATING DYNAMICS IN GAS TURBINES
    5.
    发明申请
    RESONATOR ASSEMBLY FOR MITIGATING DYNAMICS IN GAS TURBINES 有权
    用于减轻气体涡轮动力学的共振器装置

    公开(公告)号：US20100313568A1

    公开(公告)日：2010-12-16

    申请号：US12485505

    申请日：2009-06-16

    申请人： LEWIS BERKLEY DAVIS, JR. ,  FEI HAN ,  SHIVA SRINIVASAN ,  KAPIL KUMAR SINGH ,  KWANWOO KIM ,  VENKATESWARLU NARRA

    发明人： LEWIS BERKLEY DAVIS, JR. ,  FEI HAN ,  SHIVA SRINIVASAN ,  KAPIL KUMAR SINGH ,  KWANWOO KIM ,  VENKATESWARLU NARRA

    IPC分类号： F02C7/24

    CPC分类号： F23R3/002 ,  F23M20/005 ,  F23R2900/00013 ,  F23R2900/00014

    摘要： A combustor for a gas turbine engine and related method is provided in which a plurality of combustor cans are selectively adapted with corresponding resonators. The resonators may, for example, be attached to every can in the consecutive arrangement of combustor cans, every other can, every third can or the like, and may be tuned to the same or first, second, third, etc. frequencies of operation. Such selective tuning is configured to suppress one or more of out-of-phase and in-phase dynamic interaction of streams discharged from adjacent combustor cans by changing the frequencies of pressure oscillation instabilities across the arrangement of consecutive cans.

    摘要翻译： 提供了一种用于燃气涡轮发动机的燃烧器和相关方法，其中多个燃烧器罐选择性地适应于相应的谐振器。 例如，谐振器可以在燃烧器罐的连续布置中，每隔一个可以，每隔三分之一或者类似地连接到每个罐，并且可以调谐到相同或第一，第二，第三等操作频率 。 这种选择性调谐被配置为通过改变跨连续罐排列的压力振荡不稳定性的频率来抑制从相邻燃烧器罐排出的流的异相和同相动态相互作用中的一个或多个。

    SYSTEM AND METHOD FOR CONTROLLING COMBUSTION DYNAMICS
    7.
    发明申请
    SYSTEM AND METHOD FOR CONTROLLING COMBUSTION DYNAMICS 有权
    用于控制燃烧动力学的系统和方法

    公开(公告)号：US20100269505A1

    公开(公告)日：2010-10-28

    申请号：US12431095

    申请日：2009-04-28

    申请人： Kapil Kumar Singh ,  Fei Han ,  Shiva Srinivasan ,  Kwanwoo Kim

    发明人： Kapil Kumar Singh ,  Fei Han ,  Shiva Srinivasan ,  Kwanwoo Kim

    IPC分类号： F02C9/26

    CPC分类号： F23D14/48 ,  F02C7/222 ,  F02C9/28 ,  F05D2260/964 ,  F23D2900/14482 ,  F23N5/24 ,  F23R2900/00013

    摘要： A tunable fluid flow control system for controlling combustion dynamics in a combustor is disclosed. The control system includes a fuel supply path having an inlet portion, a first diverted portion, a second diverted portion, and an exit portion. A first diverted portion has a first length and a first diameter. A second diverted portion has a second length and a second diameter and spaced apart from the first diverted portion. The first and second diverted portions converge at a merging location. The exit portion is coupled to the merging location of the first and second diverted portions. At least one flow regulation device is coupled to the inlet portion and configured to divert fuel flow to the first and second diverted portions alternately to generate fuel flow perturbations at the merging location.

    摘要翻译： 公开了一种用于控制燃烧器中的燃烧动力学的可调流体流量控制系统。 控制系统包括具有入口部分，第一转向部分，第二转向部分和出口部分的燃料供给路径。 第一转向部分具有第一长度和第一直径。 第二转向部分具有第二长度和第二直径并且与第一转向部分间隔开。 第一和第二转向部分在合并位置收敛。 出口部分耦合到第一和第二转向部分的合并位置。 至少一个流量调节装置联接到入口部分并被配置成交替地将燃料流转移到第一和第二转向部分以在合并位置产生燃料流动扰动。

    Methods and systems for combustion dynamics reduction
    8.
    发明授权
    Methods and systems for combustion dynamics reduction 有权
    燃烧动力学减少的方法和系统

    公开(公告)号：US07578130B1

    公开(公告)日：2009-08-25

    申请号：US12123876

    申请日：2008-05-20

    申请人： Gilbert Otto Kraemer ,  Balachandar Varatharajan ,  Shiva Srinivasan ,  John Joseph Lynch ,  Ertan Yilmaz ,  Kwanwoo Kim ,  Benjamin Lacy ,  Sarah Crothers ,  Kapil Kumar Singh

    发明人： Gilbert Otto Kraemer ,  Balachandar Varatharajan ,  Shiva Srinivasan ,  John Joseph Lynch ,  Ertan Yilmaz ,  Kwanwoo Kim ,  Benjamin Lacy ,  Sarah Crothers ,  Kapil Kumar Singh

    IPC分类号： F02C1/00

    CPC分类号： F23R3/286 ,  F23C2900/07001 ,  F23R3/14 ,  F23R2900/00014

    摘要： Methods and systems for combustion dynamics reduction are provided. A combustion chamber may include a first premixer and a second premixer. Each premixer may include at least one fuel injector, at least one air inlet duct, and at least one vane pack for at least partially mixing the air from the air inlet duct or ducts and fuel from the fuel injector or injectors. Each vane pack may include a plurality of fuel orifices through which at least a portion of the fuel and at least a portion of the air may pass. The vane pack or packs of the first premixer may be positioned at a first axial position and the vane pack or packs of the second premixer may be positioned at a second axial position axially staggered with respect to the first axial position.

    摘要翻译： 提供了减少燃烧动力学的方法和系统。 燃烧室可以包括第一预混合器和第二预混合器。 每个预混合器可以包括至少一个燃料喷射器，至少一个空气入口管道和至少一个叶片组件，用于至少部分地混合来自进气管道或管道的空气以及来自燃料喷射器或喷射器的燃料。 每个叶片组件可以包括多个燃料喷口，燃料的至少一部分和空气的至少一部分可通过该燃料喷口通过。 第一预混合器的叶片组件或组件可以定位在第一轴向位置，并且第二预混合器的叶片组件或组件可以位于相对于第一轴向位置轴向交错的第二轴向位置。

    System and Method to Identify Changed Data Blocks
    9.
    发明申请
    System and Method to Identify Changed Data Blocks 审中-公开
    识别更改的数据块的系统和方法

    公开(公告)号：US20090006792A1

    公开(公告)日：2009-01-01

    申请号：US11770589

    申请日：2007-06-28

    申请人： Michael L. Federwisch ,  Atul R. Pandit ,  Kapil Kumar

    发明人： Michael L. Federwisch ,  Atul R. Pandit ,  Kapil Kumar

    IPC分类号： G06F12/16

    CPC分类号： G06F16/10 ,  G06F11/1451

    摘要： Differences between data objects stored on a mass storage device can be identified quickly and efficiently by comparing block numbers stored in data structures that describe the data objects. Bit-by-bit or byte-by-byte comparisons of the objects' actual data need only be performed if the block numbers are different. Objects that share many data blocks can be compared much faster than by a direct comparison of all the objects' data. The fast comparison techniques can be used to improve storage server mirrors and database storage operations, among other applications.

    摘要翻译： 通过比较存储在描述数据对象的数据结构中的块号，可以快速有效地识别存储在大容量存储设备上的数据对象之间的差异。 仅当块号不同时，才需要对对象的实际数据进行逐位或逐字节比较。 与所有对象的数据的直接比较，可以比较共享许多数据块的对象的速度更快。 快速比较技术可用于改进存储服务器镜像和数据库存储操作以及其他应用程序。