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    • 22. 发明授权
    • Turbine rotor blade and turbo machine
    • 涡轮转子叶片和涡轮机
    • US09194239B2
    • 2015-11-24
    • US13508689
    • 2011-01-19
    • Koichiro Iida
    • Koichiro Iida
    • F01D5/14F01D5/20F01D5/22
    • F01D5/225F05D2250/71Y02T50/671Y02T50/673
    • A rotor blade includes a blade main body having a proximal end connected to the blade root, and a tip shroud connected to a tip end of the blade main body so as to constitute a part of an annular shroud, a tip end side of a leading edge of the blade main body is made continuous to an outside surface of the tip shroud via a curved portion curved toward a trailing edge, fillets are provided between the tip end of the blade main body and an inside surface of the tip shroud, and the curved portion is located closer to the leading edge than the fillets, whereby the turbine rotor blade and the turbo machine can realize weight reduction and suppress performance degradation.
    • 转子叶片包括具有连接到叶片根部的近端的叶片主体和连接到叶片主体的顶端以构成环形护罩的一部分的尖端罩,前端的前端侧 叶片主体的边缘经由弯曲部分向后缘弯曲而与尖端护罩的外表面连续,在刀片主体的末端和尖端护罩的内表面之间设置有圆角, 弯曲部分位于比圆角更靠近前缘的位置,由此涡轮转子叶片和涡轮机可实现重量减轻并抑制性能下降。