MULTI-FUNCTION CENTRIFUGAL FAN

WIPO Patent Application WO/2009/140854

A1

A multi-function centrifugal fan includes a casing (8), an impeller (9), an air swirl chamber (5), an impeller working chamber (6), an air inlet (7), an air outlet (4) and a motor (10). The casing (8) is divided into the air swirl chamber (5) and the impeller working chamber (6), the air inlet (7) is on the side of the air swirl chamber (5), and the air outlet (4) is on the top of the air swirl chamber (5). The impeller (9) is mounted in the impeller working chamber (6), and is provided with mutually connecting blades (1) and an impeller plate (2) connected with the motor (10) shaft outside the casing (8). A front sealing sheet (3) is fixed at front end of the impeller plate (2). The impeller (9) has at least one group of arc-shaped flow channel blades (1), one side of each blade is closed and the blades are axially amplified. The fan has multiple functions of ventilating, sending wind, leading wind, discharging smoke and absorbing and discharging materials.

JP2005052234

FAN TYPE AIR CLEANER AND PRODUCTION METHOD OF VANE SECTION USED THEREFOR

ZHU RUIFU (CN)
LIN JUNHAO (CN)
WANG JIANHUA (CN)

PCT/CN2009/000515

November 26, 2009

May 13, 2009

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SHAN DONG UNIVERSITY (CN)
ZHU RUIFU (CN)
LIN JUNHAO (CN)
WANG JIANHUA (CN)

F04D29/30; F04D17/08; F04D29/40; F04D29/54

WO2008082397A1

2008-07-10

CN2567382Y	2003-08-20
CN101033755A	2007-09-12
CN201212488Y	2009-03-25
CN101303025A	2008-11-12
EP1930601A2	2008-06-11

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