Title:
AXIAL FLOW FAN
Document Type and Number:
WIPO Patent Application WO/2013/099906
Kind Code:
A1
Abstract:
An axial flow fan (70) having blades (91) in which recessed parts (101) that are recessed toward the leading edge are formed on the trailing edge, with stress-reducing parts (105), having an R shape at the positive-pressure-surface side and the negative-pressure-surface side in a cross-sectional view of the blades (91), being formed at the edge part of the leading-edge side of the recessed parts (101).
Inventors:
KOJIMA AZUMI
YOKOYAMA YUUTA
YOKOYAMA YUUTA
Application Number:
PCT/JP2012/083577
Publication Date:
July 04, 2013
Filing Date:
December 26, 2012
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F04D29/38
Foreign References:
| JP2005140081A | 2005-06-02 | |||
| JP2003206894A | 2003-07-25 | |||
| JP2009257260A | 2009-11-05 | |||
| JP2004346775A | 2004-12-09 | |||
| JP2004176702A | 2004-06-24 | |||
| JP2003206894A | 2003-07-25 |
Other References:
See also references of EP 2799720A4
Attorney, Agent or Firm:
Shinjyu Global IP (JP)
fresh green -- a global IP patent business corporation (JP)
fresh green -- a global IP patent business corporation (JP)
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Claims:
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