Air cleaner having vanes with a winglike cross-section between a

Details Air cleaner having vanes with a winglike cross-section between a Air cleaner having vanes with a winglike cross-section between a

1998-10-01

2000-12-05

Simmons, David A.

Gas separation

With gas flow effecting means

Impeller within or proximate to space encompassed by...

55473, 416178, 416187, 416146R, 416144, 416190, 416243, B01D 3530, F01D 522

Patent

active

061560901

ABSTRACT:
An air cleaner includes a housing having an upper wall and side walls, an air filter mounted with respect to the housing, a fan including a vane-wheel having a plurality of vanes, a supporting plate extending substantially between at least two side walls for supporting the fan. An air flow directional member directs an air flow output from the fan. The vane is formed to have a winglike cross-section, and the vane-wheel includes not more than four vanes. The vane-wheel has a base plate and a shroud. Each of the base plate and the shroud is formed to have a reinforcement portion on its circumference. A U-shaped balance weight is attached to a flattened portion formed on the curled portion. The air cleaner of the present invention can reduce noise and vibration and improve efficiency of the fan.

REFERENCES:
patent: 2676057 (1954-04-01), Daugherty
patent: 3536416 (1970-10-01), Glucksman
patent: 4165950 (1979-08-01), Wasai et al.
patent: 5053065 (1991-10-01), Garay et al.
patent: 5476365 (1995-12-01), Kobayashi
patent: 5586053 (1996-12-01), Park
patent: 5876279 (1999-03-01), Renz et al.
Japanese Patent Unexamined Publication No. 9-210418 date Aug. 12, 1997.
Japanese Patent Unexamined Publication No. 57-35198 date: Feb. 25, 1982.
Cbm Industries, Inc., "Motorized Impellers for 2.times.4 ceiling mounted HEPA Filter Clean room Modules", pp. 1 & 2, 1987.

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