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    • 10. 发明公开
    • Gas turbine engine liner
    • 燃气轮机发动机缸套
    • EP1156280A2
    • 2001-11-21
    • EP01304302.1
    • 2001-05-15
    • UNITED TECHNOLOGIES CORPORATION
    • Narcus, AndrewPechette, Thomas F.Brewer, Keith
    • F23R3/08
    • F23R3/26
    • A liner for a gas turbine engine is provided that includes a first liner section 30 and a second liner section 32. The first liner section 30 includes a first flange 34 having a first contact surface 36. The second liner section 32 includes a second flange 47 having a second contact surface 44 and a plurality of apertures 46. The first and second flanges 36,42 axially overlap one another, and in a circumferential liner the second flange 42 is disposed radially outside of the first flange 34. A channel 48 is formed by the two liner sections that is open to the core gas path. In a first position, the first flange 34 axially overlaps the second flange 42 by a first distance and the apertures 46 are misaligned with the first flange 34 and disposed within the channel 48. Cooling air entering apertures 46 within the second flange 42 subsequently passes into the channel 48. In a second position, the first flange 34 axially overlaps the second flange 42 by a second distance. The second distance is greater than the first distance and in the second position the apertures 46 in the second flange 42 are substantially aligned with the first flange 34. Cooling air entering the second flange apertures 46 subsequently impinges on the first flange 34.
    • 提供了用于燃气涡轮发动机的衬套,其包括第一衬套部分30和第二衬套部分32.第一衬套部分30包括具有第一接触表面36的第一凸缘34.第二衬套部分32包括第二凸缘47 具有第二接触表面44和多个孔46.第一和第二凸缘36,42彼此轴向重叠,并且在周向衬里中,第二凸缘42设置在第一凸缘34的径向外侧。形成通道48 通过对核心气体通道开放的两个衬管部分。 在第一位置,第一凸缘34与第二凸缘42轴向重叠第一距离,并且孔46与第一凸缘34未对准并且设置在通道48内。进入第二凸缘42内的孔46的冷却空气随后进入 在第二位置中,第一凸缘34与第二凸缘42轴向重叠第二距离。 第二距离大于第一距离,并且在第二位置中,第二凸缘42中的孔46与第一凸缘34基本对齐。进入第二凸缘孔46的冷却空气随后撞击在第一凸缘34上。