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Title:
AXIAL FAN
Document Type and Number:
Japanese Patent JP2003269395
Kind Code:
A
Abstract:

To reduce propagation of electromagnetic vibration of an axial fan to an external device.

This axial fan 100 integrally forms an electric motor holding part 7 for holding an electric motor for rotating a blade 10, a venturi 1, and a connecting part 9. The connecting part 9 has an installing part 91 extending in the shaft direction from an end surface of a wind tunnel part 1a of the venturi 1, and a connecting leg 92 connected to the electric motor holding part 7 by crossing a ventilation flue by integrally extending from the installing part 91. The cross-sectional area A1 of the installing part is formed larger than the cross-sectional area A of the connecting leg, and a circumferential directional width of the installing part 91 viewed from the shaft direction is formed larger than a width of the connecting leg 92.


Inventors:
NEMOTO KANAKO
SEKIGUCHI OSAMU
RI TOUI
ABUKAWA TOSHIMI
MIMURA MASAHIRO
MINAMI MASATAKE
YONEDA KOJI
KAWAMATA SHOICHI
SHIOHATA HIRONORI
Application Number:
JP2002376613A
Publication Date:
September 25, 2003
Filing Date:
December 26, 2002
Export Citation:
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Assignee:
HITACHI LTD
JAPAN SERVO
International Classes:
F04D29/52; F04D29/66; H02K5/24; H02K7/14; (IPC1-7): F04D29/52; F04D29/66; H02K5/24; H02K7/14
Attorney, Agent or Firm:
Yukihiko Takada