Title:
AXIAL FLOW FAN, AIR BLOWER, AND AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2024/089808
Kind Code:
A1
Abstract:
This axial flow fan comprises: a hub that is rotationally driven and forms a rotary shaft; a plurality of blades that are formed around the hub and extend outward in the radial direction from the hub; and a ring part that is formed in an annular shape when viewed in the axial direction of the rotary shaft, and that is integrally formed with respective radially outward blade ends of the plurality of blades. Each of the plurality of blades has a connection part, which is a part connected to the ring part, and is a part where, in a radial direction cross-section that is a cross-section parallel to the axial direction of the blades in the radial direction, the thickness of the blades increases toward a portion on the outer circumferential side from a portion on the inner circumferential side in the radial direction centered on the rotary shaft.
Inventors:
YAMAMOTO KATSUYUKI (JP)
TERAMOTO TAKUYA (JP)
TERAMOTO TAKUYA (JP)
Application Number:
PCT/JP2022/039958
Publication Date:
May 02, 2024
Filing Date:
October 26, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F04D25/08; F04D29/32
Foreign References:
| JP2003531341A | 2003-10-21 | |||
| JPH06159290A | 1994-06-07 | |||
| JPS62195494A | 1987-08-28 | |||
| JP2000501808A | 2000-02-15 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
Download PDF: