Title:
MULTIBLADE FAN
Document Type and Number:
Japanese Patent JP2003336599
Kind Code:
A
Abstract:
To provide a multiblade fan capable of increasing the quantity of air flowing into a space between blades and thereby improving blowing performance.
A protrusion 19 protruding toward a rotational direction is provided on a flow-in end part of the blade 13. By straightening the efficiency of the protrusion, the air flow-in quantity to the space 16 between the blades increases, and the blowing performance of the multiblade fan 10 is improved.
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Inventors:
TAKANO YUJI
SASAKI YASUHIRO
NAKAMURA MAYUMI
SASAKI YASUHIRO
NAKAMURA MAYUMI
Application Number:
JP2002143694A
Publication Date:
November 28, 2003
Filing Date:
May 17, 2002
Export Citation:
Assignee:
CALSONIC KANSEI CORP
International Classes:
F04D17/08; F04D29/28; F04D29/30; (IPC1-7): F04D29/30; F04D17/08; F04D29/28
Attorney, Agent or Firm:
Hidekazu Miyoshi (7 outside)