System and method for reducing pressure oscillations within a gas turbine engine
    3.
    发明授权
    System and method for reducing pressure oscillations within a gas turbine engine 有权
    用于减少燃气涡轮发动机内的压力振荡的系统和方法

    公开(公告)号:US09366189B2

    公开(公告)日:2016-06-14

    申请号:US13538836

    申请日:2012-06-29

    IPC分类号: F02C9/26 F02C7/232

    摘要: 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.

    摘要翻译: 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。

    FUEL NOZZLE AND ASSEMBLY AND GAS TURBINE COMPRISING THE SAME
    4.
    发明申请
    FUEL NOZZLE AND ASSEMBLY AND GAS TURBINE COMPRISING THE SAME 有权
    燃油喷嘴和组装和包括其的气体涡轮机

    公开(公告)号:US20120023952A1

    公开(公告)日:2012-02-02

    申请号:US12847688

    申请日:2010-07-30

    IPC分类号: F02C7/22

    摘要: A nozzle for assemblies and gas turbines is provided. The nozzle exhibits destabilized flame holding characteristics, i.e., the nozzle is unable to stabilize flame up to an equivalence ratio of about 0.65. As a result, flame heat release is delayed resulting in lower peak flame temperatures and correspondingly lower NOx levels. Flame stabilization capability is retained for higher equivalence ratios to support operation of the combustor in other regions of the load range.

    摘要翻译: 提供了用于组件和燃气轮机的喷嘴。 喷嘴表现出不稳定的火焰保持特性,即喷嘴不能将火焰稳定至约0.65的当量比。 结果,火焰放热被延迟,导致较低的峰值火焰温度和相应降低的NOx水平。 保持火焰稳定能力以获得更高的当量比,以支持在负载范围的其他区域的燃烧器的操作。

    Fuel nozzle and assembly and gas turbine comprising the same
    5.
    发明授权
    Fuel nozzle and assembly and gas turbine comprising the same 有权
    包括其的燃料喷嘴和组件以及燃气轮机

    公开(公告)号:US09557050B2

    公开(公告)日:2017-01-31

    申请号:US12847688

    申请日:2010-07-30

    摘要: A nozzle for assemblies and gas turbines is provided. The nozzle exhibits destabilized flame holding characteristics, i.e., the nozzle is unable to stabilize flame up to an equivalence ratio of about 0.65. As a result, flame heat release is delayed resulting in lower peak flame temperatures and correspondingly lower NOx levels. Flame stabilization capability is retained for higher equivalence ratios to support operation of the combustor in other regions of the load range.

    摘要翻译: 提供了用于组件和燃气轮机的喷嘴。 喷嘴表现出不稳定的火焰保持特性,即喷嘴不能将火焰稳定至约0.65的当量比。 结果,火焰放热被延迟,导致较低的峰值火焰温度和相应降低的NOx水平。 保持火焰稳定能力以获得更高的当量比,以支持在负载范围的其他区域的燃烧器的操作。

    Aerodynamic Fuel Nozzle
    6.
    发明申请
    Aerodynamic Fuel Nozzle 审中-公开
    气动燃料喷嘴

    公开(公告)号:US20120266602A1

    公开(公告)日:2012-10-25

    申请号:US13092345

    申请日:2011-04-22

    申请人: Joel Meier Haynes

    发明人: Joel Meier Haynes

    IPC分类号: F23R3/28 F23R3/26

    CPC分类号: F23R3/14 F23R3/286

    摘要: The present application and the resultant patent provide a combustor for a turbine engine. The combustor may include a number of fuel nozzles with one or more of the fuel nozzles including a swirler assembly. The swirler assembly may include a number of stages with a number of fueled structures and a number of unfueled structures.

    摘要翻译: 本申请和所得专利提供了一种用于涡轮发动机的燃烧器。 燃烧器可以包括多个燃料喷嘴,其中一个或多个燃料喷嘴包括旋流器组件。 旋流器组件可以包括具有多个燃料结构和多个未加工结构的多个阶段。

    Method and apparatuses for gas ranges
    9.
    发明授权
    Method and apparatuses for gas ranges 有权
    气体范围的方法和装置

    公开(公告)号:US06935328B2

    公开(公告)日:2005-08-30

    申请号:US10460888

    申请日:2003-06-13

    IPC分类号: F24C3/10 F24C3/12

    CPC分类号: F24C3/103

    摘要: A gas burner assembly for connection to a source of gas includes a burner body, a burner cap disposed over the burner body, a ceramic igniter positioned adjacent the burner body, and a ceramic igniter protection apparatus positioned adjacent to the ceramic igniter, the ceramic igniter protection apparatus is configured to shield the ceramic igniter from inadvertent contact.

    摘要翻译: 用于连接到气源的气体燃烧器组件包括燃烧器主体,设置在燃烧器主体上方的燃烧器盖,邻近燃烧器主体定位的陶瓷点火器和邻近陶瓷点火器定位的陶瓷点火器保护装置,陶瓷点火器 保护装置被配置为屏蔽陶瓷点火器免于意外的接触。

    Gas turbine engine combustor can with trapped vortex cavity
    10.
    发明授权
    Gas turbine engine combustor can with trapped vortex cavity 有权
    燃气涡轮发动机燃烧器可以与被捕获的涡流腔

    公开(公告)号:US06735949B1

    公开(公告)日:2004-05-18

    申请号:US10166960

    申请日:2002-06-11

    IPC分类号: F02C358

    摘要: A gas turbine engine combustor can downstream of a pre-mixer has a pre-mixer flowpath therein and circumferentially spaced apart swirling vanes disposed across the pre-mixer flowpath. A primary fuel injector is positioned for injecting fuel into the pre-mixer flowpath. A combustion chamber surrounded by an annular combustor liner disposed in supply flow communication with the pre-mixer. An annular trapped dual vortex cavity located at an upstream end of the combustor liner is defined between an annular aft wall, an annular forward wall, and a circular radially outer wall formed therebetween. A cavity opening at a radially inner end of the cavity is spaced apart from the radially outer wall. Air injection first holes are disposed through the forward wall and air injection second holes are disposed through the aft wall. Fuel injection holes are disposed through at least one of the forward and aft walls.

    摘要翻译: 在预混合器下游的燃气涡轮发动机燃烧器具有预混合器流动路径,并且横跨预混合器流动路径设置周向间隔开的涡流叶片。 主燃料喷射器定位成将燃料喷射到预混合器流路中。 由环形燃烧器衬套围绕的燃烧室,其设置成与预混合器供应流动连通。 位于燃烧器衬套的上游端的环形捕获双涡流腔限定在环形后壁,环形前壁和形成在其间的圆形径向外壁。 在空腔的径向内端处的空腔开口与径向外壁间隔开。 空气注入第一孔穿过前壁设置,空气注入第二孔穿过后壁。 燃料喷射孔通过前壁和后壁中的至少一个设置。