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    • 10. 发明专利
    • Mixed flow turbine
    • 混合流量涡轮机
    • JP2009281197A
    • 2009-12-03
    • JP2008132403
    • 2008-05-20
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • HIGASHIMORI HIROTAKA
    • F01D1/08F01D5/14F01D9/00F01D17/14F02B37/02
    • F01D9/026F01D17/148F02B37/025F02B37/22F02C6/12F05D2220/40F05D2250/711Y02T10/144
    • PROBLEM TO BE SOLVED: To provide a mixed flow turbine capable of allowing a blade shape at its inlet side edge to function effectively, and reducing an incidence loss by devising the supply of a working fluid on the hub side and the shroud side.
      SOLUTION: The mixed flow turbine 1 is equipped with blades 7 each having a front edge 47 formed convex toward upstream and a scroll 23 as a space formed of, upstream of the blade 7, a casing 3 having a shroud 27 covering outer edges 25 of the blades 7 for supplying the working fluid toward front edges 47 of the blades 7, wherein the scroll 23 is partitioned by a scroll partitioning wall 29 into a shroud side space 31 and a hub side space 33, and by the shroud side wall surface 37 and the hub side wall surface 35 at the rear edge of the partitioning wall 29, a shroud side influx passage 45 through which the working fluid flows approximately in the radial direction and a hub side influx passage 41 through which the fluid flows approximately in the same direction as the inclination of the blade inlet on the hub side are formed between wall surfaces and respective mating portions.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种能够使其入口侧边缘处的叶片形状有效地起作用的混合流动涡轮机,并且通过设计在轮毂侧和护罩侧上的工作流体的供给来减少入射损失 。 解决方案:混合流动涡轮机1装备有叶片7,叶片7具有朝向上游形成为凸起的前边缘47和作为由叶片7上游形成的空间的涡旋件23,壳体3具有覆盖外部的护罩27 叶片7的边缘25,用于向叶片7的前边缘47供应工作流体,其中涡旋件23被涡旋分隔壁29分隔成护罩侧空间31和轮毂侧空间33,并且通过护罩侧 壁面37和分隔壁29的后边缘处的轮毂侧壁面35,工作流体沿着径向大致流过的护罩侧流入通道45和流体大致流过的轮毂侧流入通道41 在与壁面之间的叶片入口的倾斜度和相应的配合部分之间形成相同的方向。 版权所有(C)2010,JPO&INPIT