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1. (WO2017061540) IMPELLER AND AXIAL FAN INCLUDING THE SAME

Pub. No.:    WO/2017/061540    International Application No.:    PCT/JP2016/079783
Publication Date: Fri Apr 14 01:59:59 CEST 2017 International Filing Date: Fri Oct 07 01:59:59 CEST 2016
IPC: F04D 19/00
F04D 29/32
F04D 29/38
Applicants: MINEBEA MITSUMI INC.
Inventors: SASAJIMA Tomoyoshi
HIGUCHI Yukihiro
MURAKAMI Naoya
TAKEDA Koichi
Title: IMPELLER AND AXIAL FAN INCLUDING THE SAME
Abstract:
Provided is an impeller for reducing power consumption without deterioration of airflow characteristics of a fan and an axial fan including the impeller. An impeller (1) of the present invention includes a hub (10) and a plurality of blades (20) disposed on an outer circumference of the hub (10) wherein a pressure surface (40b) of the blade (20) is at least partially a convex surface bulging from a suction surface (40a) side to a pressure surface (40b) side, and the convex surface is provided within a predetermined region (21) of the pressure surface (40b) of the blade (20) on a hub (10) side.