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    • 9. 发明授权
    • Smart turbine shroud
    • 智能涡轮罩
    • US5593277A
    • 1997-01-14
    • US467418
    • 1995-06-06
    • Robert ProctorDavid R. LingerDavid A. Di SalleSteven R. BrassfieldLarry W. Plemmons
    • Robert ProctorDavid R. LingerDavid A. Di SalleSteven R. BrassfieldLarry W. Plemmons
    • F01D11/18F01D11/24
    • F01D11/18F01D11/24
    • A turbine shroud includes an annular outer casing having first and second radial flanges between which are suspended an adjoining annular shroud support and an annular shroud hanger. A plurality of shroud panels are joined to the shroud hanger and are positionable radially above turbine rotor blades to define a tip clearance therebetween. The four flanges are disposed in abutting contact with each other, and respective pluralities of circumferentially spaced apart first, second, and third recesses are disposed respectively between the casing first flange and the shroud flange, between the shroud flange and the hanger flange, and between the hanger flange and the casing second flange for providing radial flowpaths therebetween. The support flange and the hanger flange have respective pluralities of circumferentially spaced apart first and second metering holes extending axially therethrough for providing flow communication between the first, second, and third recesses for channeling compressor bleed air therethrough for controlling the tip clearance.
    • 涡轮机护罩包括具有第一和第二径向凸缘的环形外壳,在其之间悬挂有邻接的环形护罩支撑件和环形护罩悬挂器。 多个护罩板连接到护罩悬挂器并且可径向地位于涡轮转子叶片上方以限定其间的顶端间隙。 四个凸缘彼此邻接地设置,并且相应的多个周向间隔开的第一,第二和第三凹槽分别设置在壳体第一凸缘和护罩凸缘之间,护罩凸缘和悬挂器凸缘之间,以及 衣架法兰和套管第二法兰,用于在其间提供径向流动路径。 支撑凸缘和悬挂器法兰具有相应的多个周向间隔开的第一和第二计量孔,其轴向延伸穿过其中,以提供第一,第二和第三凹部之间的流动连通,用于引导压缩机排出空气通过其中以控制顶端间隙。