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1. (WO2013122000) IMPELLER AND ROTATING MACHINE PROVIDED WITH SAME

Pub. No.:    WO/2013/122000    International Application No.:    PCT/JP2013/053044
Publication Date: Fri Aug 23 01:59:59 CEST 2013 International Filing Date: Sat Feb 09 00:59:59 CET 2013
IPC: F04D 29/28
F04D 29/22
Applicants: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
三菱重工コンプレッサ株式会社
MITSUBISHI HEAVY INDUSTRIES, LTD.
三菱重工業株式会社
Inventors: YAGI Nobuyori
八木 信頼
HIRATA Daisuke
平田 大輔
Title: IMPELLER AND ROTATING MACHINE PROVIDED WITH SAME
Abstract:
The impeller is provided with: a disc section equipped with a tubular section, the grip section of which is fixed by thermal deformation to a rotation shaft that is rotated around the axis line, and a main disc body, which is provided on the other end in the axial direction from the grip section and which extends outward in the radial direction of the rotation shaft; and blade sections that protrude from the main disc body in the axial direction. The disc section is provided with a hoop stress-limiting section, the tubular section of which extends further towards the other end in the axial direction than the main disc body.