| 摘要 |
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
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