Invention Grant
- Patent Title: Centrifugal impeller, electric blower, electric vacuum cleaner, and hand dryer
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Application No.: US16336184Application Date: 2016-10-28
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Publication No.: US10794391B2Publication Date: 2020-10-06
- Inventor: Naho Adachi , Takashi Ikeda , Mamoru Hayatsu , Mitsumasa Hamazaki , Masaya Teramoto
- Applicant: Mitsubishi Electric Corporation , Mitsubishi Electric Home Appliance Co., Ltd.
- Applicant Address: JP Tokyo JP Fukaya-shi, Saitama
- Assignee: Mitsubishi Electric Corporation,Mitsubishi Electric Home Appliance Co., Ltd.
- Current Assignee: Mitsubishi Electric Corporation,Mitsubishi Electric Home Appliance Co., Ltd.
- Current Assignee Address: JP Tokyo JP Fukaya-shi, Saitama
- Agency: Posz Law Group, PLC
- International Application: PCT/JP2016/082126 WO 20161028
- International Announcement: WO2018/078811 WO 20180503
- Main IPC: F04D29/30
- IPC: F04D29/30 ; F04D29/28

Abstract:
A centrifugal impeller high in efficiency and suction power, an electric blower having the centrifugal impeller, and an electrical apparatus provided with the electric blower are obtained. The centrifugal impeller includes a hub and a plurality of rotor blades. The plurality of rotor blades are coupled to a surface portion of the hub. At least one of the plurality of rotor blades includes an end portion, a first surface, and a second surface. The end portion includes a planar portion and a curved portion. The planar portion is continuous to the second surface and has a flat surface. The curved portion connects the planar portion and the first surface to each other and has a curved surface.
Public/Granted literature
- US20190242397A1 CENTRIFUGAL IMPELLER, ELECTRIC BLOWER, ELECTRIC VACUUM CLEANER, AND HAND DRYER Public/Granted day:2019-08-08
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