Gas-turbine engine combustor
    1.
    发明申请
    Gas-turbine engine combustor 失效
    燃气涡轮发动机燃烧器

    公开(公告)号:US20040011041A1

    公开(公告)日:2004-01-22

    申请号:US10228107

    申请日:2002-08-27

    IPC分类号: F23R003/30

    CPC分类号: F23R3/283 F23D2900/00008

    摘要: A gas-turbine engine combustor having a plurality of venturi mixers, each includes an air inlet connecting to an air supply path, a fuel inlet connecting to a supply source of gaseous fuel, and an air-fuel mixture generating passage connecting to the air inlet and the fuel inlet and merges with an air-fuel mixture generating section to produce the air-fuel mixture and a first nozzle opened into the combustion chamber at an end of the air-fuel mixture generating passage. The combustor further includes an ignition plug installed on a center axis of the combustion chamber, a second fuel passage for diffusive combustion which is formed around the body of ignition plug and is connected to the supply of gaseous fuel, and a plurality of second nozzles located around the heating elements of the ignition plug and open into the combustion chamber at an end of the second fuel passage, thereby enabling to enhance ignition performance and flame holding and to expand the premixed combustion range, while enhancing combustion stability at the time of combustion mode switching.

    摘要翻译: 一种具有多个文丘里管混合器的燃气涡轮发动机燃烧器,每个都包括连接到空气供应路径的空气入口,连接到气体燃料供应源的燃料入口以及连接到空气入口的空气 - 燃料混合物产生通道 并且燃料入口与空气 - 燃料混合物产生部分结合以产生空气 - 燃料混合物,以及在空气 - 燃料混合物产生通道的端部处通向燃烧室的第一喷嘴。 燃烧器还包括安装在燃烧室的中心轴线上的火花塞,用于扩散燃烧的第二燃料通道,其形成在火花塞主体周围并与气体燃料供应相连接;多个第二喷嘴位于 在火花塞的加热元件周围,在第二燃料通路的一端开口进入燃烧室,从而能够提高点火性能和火焰保持,并扩大预混燃烧范围,同时提高燃烧模式时的燃烧稳定性 交换。

    Gas-turbine engine control system

    公开(公告)号:US20040011053A1

    公开(公告)日:2004-01-22

    申请号:US10228108

    申请日:2002-08-27

    IPC分类号: F02C009/28

    摘要: In a gas-turbine engine control system, a temperature of the air supplied to mixers and a pressure of the fuel supplied to the mixers are detected and based on the detected fuel pressure, a flow rate of the fuel supplied to the mixers is determined based on at least the detected pressure of the fuel. Then, an adiabatic flame temperature in a combustion chamber is determined based on at least the determined flow rate of the fuel and it is determined whether a selected one of combustion modes including premixed combustion and diffusive combustion is to be switched to other based on the determined adiabatic flame temperature and the detected air temperature and the selected combustion mode is controlled to switch to the other in response to a result of determination. With this, it becomes possible to achieve switchover to the stabler combustion mode and realize better low emission performance by utilizing the premixed combustion range.

    Gas-turbine engine combustor
    3.
    发明申请

    公开(公告)号:US20040011042A1

    公开(公告)日:2004-01-22

    申请号:US10228109

    申请日:2002-08-27

    IPC分类号: F23R003/30

    CPC分类号: F23R3/283 F23D2900/00008

    摘要: A gas-turbine engine combustor having a plurality of venturi mixers, each includes an air inlet connecting to an air supply path, a fuel inlet connecting to a supply source of gaseous fuel, and an air-fuel mixture generating passage connecting to the air inlet and the fuel inlet and merges with an air-fuel mixture generating section to produce the air-fuel mixture and a nozzle opened into the combustion chamber at an end of the air-fuel mixture generating passage. In the combustor, the venturi mixers are arranged radially around a center axis of the combustion chamber, the air-fuel mixture generating passage is provided with a throttle section of diminishing diameter, and the nozzle is shifted circumferentially about the center axis relative to the air inlet such that the air-fuel mixture generating passage is deflected in a circumferential direction between the throttle sections and the nozzle, thereby expanding the premixed combustion range to realize further reducing of emissions, without producing backfire or self-ignition.

    Gas-turbine engine combustor
    4.
    发明申请
    Gas-turbine engine combustor 失效
    燃气涡轮发动机燃烧器

    公开(公告)号:US20040011021A1

    公开(公告)日:2004-01-22

    申请号:US10228106

    申请日:2002-08-27

    IPC分类号: F23R003/30

    摘要: A gas-turbine engine combustor having a plurality of venturi mixers, each connected to an air supply path that passes air compressed by a compressor and to a supply source of gaseous fuel, which mix the air and the gaseous fuel to produce an air-fuel mixture and supply the air-fuel mixture to a combustion chamber for generating premixed combustion or diffusive combustion such that produced combustion gas is supplied to a turbine through a turbine nozzle to rotates the turbine that outputs its rotation through an output shaft, while driving the compressor by the rotation. The combustor includes a casing which defines the combustion chamber, and a liner disposed at an outer side of the casing to be communicated with the turbine nozzle, wherein the liner is formed with a plurality of holes through which a part of air passing through the air supply path enters the outer side of the casing, thereby enabling to cool the combustion chamber casing effectively, without introducing a flesh air or a diluted air into the combustion section of the combustion chamber, while ensuring the strength and durability of the combustion chamber casing.

    摘要翻译: 一种燃气涡轮发动机燃烧器,其具有多个文丘里管混合器,每个文丘里管混合器连接到空气供应路径,该空气供应路径将由压缩机压缩的空气传递到气态燃料的供应源,混合空气和气体燃料以产生空气燃料 混合并将空气 - 燃料混合物供应到燃烧室,用于产生预混合燃烧或扩散燃烧,使得产生的燃烧气体通过涡轮喷嘴供应到涡轮机,以使通过输出轴输出其旋转的涡轮旋转,同时驱动压缩机 通过旋转。 燃烧器包括限定燃烧室的壳体和设置在壳体的外侧以与涡轮喷嘴连通的衬套,其中衬套形成有多个孔,通过空气穿过空气的一部分空气 供给路径进入壳体的外侧,从而能够有效地冷却燃烧室壳体,而不会在燃烧室壳体的强度和耐久性的同时,将燃烧空气或稀释空气引入燃烧室的燃烧部。