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1. (WO2017149693) TURBINE WHEEL, RADIAL TURBINE, AND SUPERCHARGER

Pub. No.:    WO/2017/149693    International Application No.:    PCT/JP2016/056381
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Thu Mar 03 00:59:59 CET 2016
IPC: F02B 39/00
F01D 5/04
F01D 5/14
Applicants: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
三菱重工エンジン&ターボチャージャ株式会社
Inventors: YOSHIDA Toyotaka
吉田 豊隆
YOKOYAMA Takao
横山 隆雄
Title: TURBINE WHEEL, RADIAL TURBINE, AND SUPERCHARGER
Abstract:
Negative pressure surfaces (46n) of blades (42) of this radial turbine each have: a tip-side front portion (47n) including a front edge (43) and the boundary between the negative pressure surface (46n) and the tip (45); and a tip-side rear portion (48n) including a rear edge (44) and the boundary between the negative pressure surface (46n) and the tip (45). The tip-side front portion (47n) forms a concave curved surface which is recessed towards the side (So) opposite to the rotation side in a radial view. The tip-side rear portion (48n) forms a convex curved surface which protrudes towards the rotation side (Sr) in a radial view.