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1. (WO2018179173) IMPELLER AND CENTRIFUGAL COMPRESSOR

Pub. No.:    WO/2018/179173    International Application No.:    PCT/JP2017/013028
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Thu Mar 30 01:59:59 CEST 2017
IPC: F04D 29/30
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: IWAKIRI, Kenichiro
岩切 健一郎
Title: IMPELLER AND CENTRIFUGAL COMPRESSOR
Abstract:
The present invention is provided with: an annular hub 7 having a circularly formed axial cross-section; a plurality of first blades 8 that are arranged on the outer circumferential surface of the hub 7; and a plurality of second blades 9 that are arranged closer to the downstream side in the flow direction of fluid than the rear edges 8b of the first blades 8, in the outer circumferential surface of the hub 7, wherein the number of the second blades 9 is less than a double that of the first blades 8.