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    • 72. 发明授权
    • Guide vane assembly
    • 导叶总成
    • US06764276B2
    • 2004-07-20
    • US10201195
    • 2002-07-24
    • Thomas G MulcaireMichael T HoldsworthRichard Evans
    • Thomas G MulcaireMichael T HoldsworthRichard Evans
    • F01D904
    • F02C7/045F01D5/00F01D9/041F02K3/04F04D29/667F04D29/681F05D2240/55F05D2250/191F05D2250/283F05D2260/96
    • A fan outlet guide vane assembly (36) for a turbofan gas turbine engine (10) comprises a fan casing (32) and a plurality of circumferentially spaced radially extending fan outlet guide vanes (34). The fan outlet guide vanes (34) are secured at their radially outer ends to the fan casing (32). A plurality of panels (40) are secured to the fan casing (32). Each panel (40) is arranged between two adjacent fan outlet guide vanes (34) to define the flow path between the fan outlet guide vanes (34). Each panel (40) comprises a perforated skin (42) and a honeycomb structure (44) to form an acoustic treatment structure. The perforated skin (42) defines the flow path between the fan outlet guide vanes (34). The pressure equalization across the panels (40) minimises the possibility of the panels (40) being removed.
    • 用于涡轮风扇燃气涡轮发动机(10)的风扇出口导叶组件(36)包括风扇壳体(32)和多个周向间隔开的径向延伸的风扇出口导叶(34)。 风扇出口导叶(34)在其径向外端处固定到风扇壳体(32)。 多个面板(40)固定在风扇壳体(32)上。 每个面板(40)布置在两个相邻的风扇出口导叶(34)之间,以限定风扇出口导叶(34)之间的流动路径。 每个面板(40)包括穿孔皮肤(42)和蜂窝结构(44),以形成声学处理结构。 穿孔皮肤(42)限定了风扇出口导叶(34)之间的流动路径。 跨越面板(40)的压力平衡使得面板(40)被移除的可能性最小化。