Method and apparatus for reducing turbine blade tip region temperatures
    1.
    发明授权
    Method and apparatus for reducing turbine blade tip region temperatures 失效
    降低涡轮叶片尖端区域温度的方法和装置

    公开(公告)号:US06652235B1

    公开(公告)日:2003-11-25

    申请号:US10160527

    申请日:2002-05-31

    IPC分类号: F01D518

    摘要: A method for fabricating a rotor blade for a gas turbine engine facilitates reducing operating temperatures of a tip portion of the rotor blade. The method comprises forming an airfoil including a first sidewall and a second sidewall connected at a leading edge and a trailing edge to define a cavity therein, wherein the first and second sidewalls extend radially between a rotor blade root and a rotor blade tip plate, and forming a first tip wall extending from the rotor blade tip plate along the first sidewall, such that at least a portion of the first tip wall is at least partially recessed with respect to the rotor blade first sidewall to define a tip shelf that extends from the airfoil trailing edge towards the airfoil leading edge. A second tip wall is formed to extend from the rotor blade tip plate along the second sidewall.

    摘要翻译: 一种用于制造用于燃气涡轮发动机的转子叶片的方法有助于降低转子叶片的尖端部分的操作温度。 该方法包括形成包括第一侧壁和第二侧壁的翼型件,第一侧壁和第二侧壁连接在前缘和后缘以在其中限定空腔,其中第一和第二侧壁在转子叶片根部和转子叶片顶板之间径向延伸,以及 形成从所述转子叶片尖端板沿着所述第一侧壁延伸的第一末端壁,使得所述第一末端壁的至少一部分相对于所述转子叶片第一侧壁至少部分地凹入以限定从所述第一侧壁延伸的尖端架 机翼后缘朝向翼型前缘。 第二顶端壁形成为沿着第二侧壁从转子叶片顶板延伸。

    Step-down turbine platform
    4.
    发明授权
    Step-down turbine platform 有权
    降压式涡轮平台

    公开(公告)号:US06672832B2

    公开(公告)日:2004-01-06

    申请号:US10040660

    申请日:2002-01-07

    IPC分类号: F01D530

    摘要: A turbine includes a row of blades each having an integral airfoil, platform, and dovetail. Each platform has opposite first and second side edges corresponding with the opposite pressure and suction sides of the airfoil. The platform first side edge is radially higher than the platform second side edge continuously between opposite forward and aft edges of the platform. In this way, adjacent platforms define a down step therebetween for preventing obstruction of combustion gases flowable downstream thereover.

    摘要翻译: 涡轮机包括一排叶片,每排叶片具有整体的翼型,平台和燕尾榫。 每个平台具有相对的第一和第二侧边缘对应于翼型的相对的压力和抽吸侧。 平台第一侧边缘在平台的相对的前后边缘之间连续地径向地高于平台第二侧边缘。 以这种方式,相邻的平台在其间限定了一个向下的步骤,用于防止在其下游流动的燃烧气体的阻塞。

    Methods and apparatus for cooling gas turbine engine rotor assemblies
    8.
    发明授权
    Methods and apparatus for cooling gas turbine engine rotor assemblies 有权
    用于冷却燃气涡轮发动机转子组件的方法和装置

    公开(公告)号:US06923616B2

    公开(公告)日:2005-08-02

    申请号:US10653519

    申请日:2003-09-02

    IPC分类号: F01D5/18 F02C7/18

    摘要: A method facilitates fabricating a rotor assembly for a gas turbine engine. The method comprises providing a plurality of rotor blades that each include an airfoil, a dovetail, a shank, and a platform, wherein the platform extends between the shank and the airfoil, and wherein the dovetail extends outwardly from the shank, and forming a cooling circuit within a portion of the shank to supply cooling air to the rotor blade for supplying cooling air to the rotor blade for impingement cooling a portion of the rotor blade and for supplying cooling air to the rotor blade for purging a cavity defined downstream from the rotor blade.

    摘要翻译: 一种方法有助于制造用于燃气涡轮发动机的转子组件。 该方法包括提供多个转子叶片,每个转子叶片包括翼型件,燕尾榫,柄和平台,其中平台在柄和翼型之间延伸,并且其中燕尾榫从柄部向外延伸,并形成冷却 在所述柄部的一部分内设置电路,以向所述转子叶片供应冷却空气,以向所述转子叶片供应冷却空气,用于冲击冷却所述转子叶片的一部分并用于向所述转子叶片供应冷却空气,用于向所述转子叶片 刀。