Fiber optic microphones for active combustion control
    1.
    发明申请
    Fiber optic microphones for active combustion control 审中-公开
    用于主动燃烧控制的光纤麦克风

    公开(公告)号:US20110239621A1

    公开(公告)日:2011-10-06

    申请号:US12798095

    申请日:2010-03-30

    IPC分类号: F02C9/26 F23R3/28 F02C7/00

    摘要: Disclosed is a fuel injector for a gas turbine engine combustor that includes a fuel nozzle for injecting fuel into the gas turbine engine combustor and a fiber optic microphone operatively associated with the fuel nozzle for measuring acoustic pressure differentials within a combustion chamber of the gas turbine engine combustor. The fiber optic microphone includes a fiber bundle having at least one light transmitting fiber and one light receiving fiber; and a dynamic pressure-sensing diaphragm operatively spaced apart from a sensing end of the fiber bundle. The diaphragm has a reflective surface and is formed from a material capable of withstanding temperatures associated with flame exposure. The diaphragm is adapted and configured for deflecting in response to acoustic pressure changes within the combustion chamber. The fuel injector can further include a mechanism for measuring the temperature of the diaphragm, so as to account for changes in the material properties of the diaphragm caused by temperature changes in the combustion chamber.

    摘要翻译: 公开了一种用于燃气涡轮发动机燃烧器的燃料喷射器,其包括用于将燃料喷射到燃气涡轮发动机燃烧器中的燃料喷嘴和与燃料喷嘴可操作地相关联的光纤麦克风,用于测量燃气涡轮发动机的燃烧室内的声压差 燃烧器。 光纤麦克风包括具有至少一个光传输光纤和一个光接收光纤的光纤束; 以及与纤维束的感测端部可操作地间隔开的动态压力感测隔膜。 隔膜具有反射表面,并且由能够承受与火焰暴露相关的温度的材料形成。 隔膜适于和构造成响应于燃烧室内的声压变化而偏转。 燃料喷射器还可以包括用于测量隔膜的温度的机构,以便考虑由燃烧室的温度变化引起的隔膜的材料特性的变化。

    High temperature seal assembly for optical sensor
    3.
    发明申请
    High temperature seal assembly for optical sensor 有权
    高温密封组件用于光学传感器

    公开(公告)号:US20100140373A1

    公开(公告)日:2010-06-10

    申请号:US12316136

    申请日:2008-12-10

    IPC分类号: B05B15/06 H01J5/02 F16J15/00

    摘要: A seal assembly for an optical sensor employed in a high temperature environment is disclosed which includes an elongated metal guide tube having a distal end portion defining an open distal end and an inner rear wall, a sapphire window disposed within the distal end portion of the metal guide tube, the sapphire window having a rear end surface abutting the inner rear wall of the distal end portion of the metal guide tube, and a platinum mounting sleeve for securing the sapphire window to the metal guide tube, the platinum mounting sleeve having one portion joined to the metal guide tube and another portion joined to the sapphire window.

    摘要翻译: 公开了一种用于在高温环境中使用的光学传感器的密封组件,其包括具有限定开口远端和内后壁的远端部分的细长金属导管,设置在金属的远端部分内的蓝宝石窗 导向管,蓝宝石窗具有邻接金属导管的前端部的内后壁的后端面和用于将蓝宝石窗固定在金属导管上的铂安装套,铂安装套具有一部分 连接到金属导管,另一部分连接到蓝宝石窗。

    High temperature seal assembly for optical sensor
    4.
    发明授权
    High temperature seal assembly for optical sensor 有权
    高温密封组件用于光学传感器

    公开(公告)号:US07987712B2

    公开(公告)日:2011-08-02

    申请号:US12316136

    申请日:2008-12-10

    IPC分类号: G01D11/24

    摘要: A seal assembly for an optical sensor employed in a high temperature environment is disclosed which includes an elongated metal guide tube having a distal end portion defining an open distal end and an inner rear wall, a sapphire window disposed within the distal end portion of the metal guide tube, the sapphire window having a rear end surface abutting the inner rear wall of the distal end portion of the metal guide tube, and a platinum mounting sleeve for securing the sapphire window to the metal guide tube, the platinum mounting sleeve having one portion joined to the metal guide tube and another portion joined to the sapphire window.

    摘要翻译: 公开了一种用于在高温环境中使用的光学传感器的密封组件,其包括具有限定开口远端和内后壁的远端部分的细长金属导管,设置在金属的远端部分内的蓝宝石窗 导向管,蓝宝石窗具有邻接金属导管的前端部的内后壁的后端面和用于将蓝宝石窗固定在金属导管上的铂安装套,铂安装套具有一部分 连接到金属导管,另一部分连接到蓝宝石窗。