Title:
MULTI-BLADE BLOWER
Document Type and Number:
Japanese Patent JP2006283689
Kind Code:
A
Abstract:
To provide the multi-blade blower which achieves improvement of efficiency by effectively preventing an air flow volume from dropping and reducing generated noise and lowering noise of the whole multi-blade fan for solving the problem that a reverse flow preventing effect of a conventional multi-blade blower is insufficient.
In the multi-blade fan, a bell-mouth orifice 1 is formed on both sides or one sides. An impeller 5 is provided to the inside of a spiral casing 4 having a suction port 2 and a discharge port 3. An air guide 6 is provided to the discharge side on the spiral casing so as to stabilize a stream and prevent a reverse flow. By so doing, high efficiency and low noise can be achieved.
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Inventors:
OGINO KAZUO
Application Number:
JP2005105907A
Publication Date:
October 19, 2006
Filing Date:
April 01, 2005
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
F04D29/44; F04D29/30; F04D29/66
Attorney, Agent or Firm:
Fumio Iwahashi
Hiroki Naito
Daisuke Nagano
Hiroki Naito
Daisuke Nagano
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