MULTI-BLADE IMPELLER, AND CENTRIFUGAL BLOWER

WIPO Patent Application WO/2022/009284

A1

This multi-blade impeller is provided with: a main plate which rotates about an axis of rotation, and which is circular when seen along the axis of rotation; a plurality of blades (4) which are arranged spaced apart from one another along the outer circumferential edge of the main plate, and which extend in the direction of the axis of rotation; and an annular reinforcing ring (5) which is provided in a position separated from the main plate in the direction along the axis of rotation, and which encloses the periphery of the plurality of blades (4). Each blade (4) is provided, in an outer edge portion (4a) on the outer peripheral edge side thereof, with a projecting portion (6) which projects in a direction that is different from an exit direction of the blade (4) and that is directed toward the outside in the radial direction of the main plate, and the plurality of blades (4) and the reinforcing ring (5) are connected to one another by way of the projecting portions (6).

WO/2015/104837	FAN, CENTRIFUGAL FAN, AND AIR CONDITIONING DEVICE
JPH08216192	MOLD FOR MOLDING WITH MANY RADIAL BLADE PLATES
JP5342485	A fan, an electric blower equipped with the fan, a vacuum cleaner using the electric blower, and a method for manufacturing a fan.

OKAMOTO KAZUKI (JP)
AOKI HIROMICHI (JP)

PCT/JP2020/026465

January 13, 2022

July 06, 2020

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MITSUBISHI ELECTRIC CORP (JP)

F04D29/28; F04D29/30

JPS5356904U	1978-05-16
JP2003184788A	2003-07-03
JP2014088787A	2014-05-15
JP2019113037A	2019-07-11
JP2007146709A	2007-06-14
JP2001280292A	2001-10-10
CN109630462A	2019-04-16

TAKAMURA, Jun (JP)

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