Title:
CENTRIFUGAL FAN AND ROTATING ELECTRIC MACHINE USING CENTRIFUGAL FAN
Document Type and Number:
WIPO Patent Application WO/2022/137431
Kind Code:
A1
Abstract:
This centrifugal fan is characterized by comprising: a disc-shaped main plate (2) provided around a rotary shaft; and a plurality of blades (4) which are formed around the main plate and extend in an axial direction of the rotary shaft and of which the front-end side and the rear-end side in the rotational direction are respectively provided on the inside and outside in the radial direction, wherein the blade has a front-end side apex part (C) on the front-end side having the highest axial height and a rear-end side apex part (D) on the rear-end side, and at least one of the plurality of blades has a different radial length, from the front-end side apex part to the rear-end side apex part, than the other blades.
Inventors:
TAKEISHI KEISUKE (JP)
MINAMI SHINICHIRO (JP)
INOUE SHINGO (JP)
MINAMI SHINICHIRO (JP)
INOUE SHINGO (JP)
Application Number:
PCT/JP2020/048451
Publication Date:
June 30, 2022
Filing Date:
December 24, 2020
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F04D29/30; H02K9/06
Foreign References:
| JPH07184352A | 1995-07-21 | |||
| JP6698962B1 | 2020-05-27 | |||
| JPH10336972A | 1998-12-18 |
Attorney, Agent or Firm:
PALMO PATENT FIRM, P.C. (JP)
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