Title:
BLOWER
Document Type and Number:
Japanese Patent JP2005351141
Kind Code:
A
Abstract:
To provide a blower capable of reducing noise without largely reducing intake efficiency.
This blower has a blower unit 10 having a large number of blades 15 and composed of an outer diameter of 100 mm to 200 mm, and a case for storing this blower unit 10. An air outflow part 15b side end part in the respective blades 15 has a recess-projection 17 projecting in the fan rotating direction X2 of the blower unit 10 in the blade width direction Y2. A plurality of teeth 17a for constituting the recess-projection part 17 are characterized by being set by a value of a range becoming 0.015<(h1/D)<0.15 and 0.01<(p1/D)<0.1 to a fan outer diameter D of the blower unit 10 when the tooth height is set to h1 and a tooth pitch is set to p1.
Inventors:
SAEKI TAKAFUMI
Application Number:
JP2004171496A
Publication Date:
December 22, 2005
Filing Date:
June 09, 2004
Export Citation:
Assignee:
CALSONIC KANSEI CORP
International Classes:
F04D29/30; B60H1/00; F04D29/44; F04D29/66; F24F1/00; (IPC1-7): F04D29/30; B60H1/00; F04D29/44; F04D29/66; F24F1/00
Attorney, Agent or Firm:
Hidekazu Miyoshi
Iwa Saki Kokuni
Akira Kurihara
Kawamata Sumio
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu
Iwa Saki Kokuni
Akira Kurihara
Kawamata Sumio
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu
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