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    • 2. 发明公开
    • Blade for a gas turbine
    • 燃气轮机叶片
    • EP2180142A1
    • 2010-04-28
    • EP08167378.2
    • 2008-10-23
    • Alstom Technology Ltd
    • Tsypkaykin, IgorValiente, RubenWardle, Brian, KennethVon Arx, BeatSaxer, Andre
    • F01D5/22
    • F01D5/225F05B2240/33
    • A blade (10) for a gas turbine comprises an airfoil (11), which extends along a longitudinal axis (21) from a blade root (20) to a blade tip (12), and has a shroud segment (14) at said blade tip (12), which shroud segment (14) abuts with first and second edges against similar shroud segments of adjacent blades to make up a ring-like shroud, whereby said first and second edges are each provided with a respective side rail (18,19) on the upper side of said shroud segment (14).
      To optimize the mechanical and thermal properties of the shroud segment (14), each of said side rails is subdivided into sections (18,19) of different height and/or width.
    • 一种用于燃气涡轮机的叶片(10)包括翼型件(11),该翼型件沿叶片根部(20)的纵向轴线(21)延伸至叶片尖端(12),并且在所述翼型件 (14)与第一和第二边缘抵靠在相邻刀片的相似护罩段上以构成环状护罩,其中所述第一和第二边缘分别设置有相应的侧轨(18) ,19)在所述罩段(14)的上侧上。 为了优化护罩部分(14)的机械性能和热性能,每个所述侧轨被分成不同高度和/或宽度的部分(18,19)。