Title:
両吸込型遠心送風機
Document Type and Number:
Japanese Patent JP4876784
Kind Code:
B2
Abstract:
A double inlet centrifugal fan includes an impeller and fan inlet port. The impeller has a main plate connected to the drive shaft in a fan casing, fan side plates, and a plurality of blades between the main plate and each of the fan side plates. The fan inlet port has an opening corresponding to the inner diameter of the blades. The blades on the side of the larger pressure loss in the suction air passage to the fan inlet port have a smaller inner diameter than the blades on the side of the smaller pressure loss. This equalizes the total pressure increase in the blades along the drive shaft, resulting in a compact double inlet centrifugal fan capable of supplying the required air flow.
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Inventors:
Koji Niizaki
Application Number:
JP2006227635A
Publication Date:
February 15, 2012
Filing Date:
August 24, 2006
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
F04D29/30; F04D17/16; F04D29/44
Domestic Patent References:
| JP2001140800A | ||||
| JP5380104U | ||||
| JP9217700A | ||||
| JP3175199A | ||||
| JP58101297A | ||||
| JP9195980A | ||||
| JP52140408U | ||||
| JP4995506U |
Attorney, Agent or Firm:
Hiroki Naito
Daisuke Nagano
Kentaro Fujii
Daisuke Nagano
Kentaro Fujii