Title:
AXIAL FLOW FAN AND OUTDOOR MACHINE USING THE SAME
Document Type and Number:
Japanese Patent JP2018053749
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To attain weight saving of a blade, and enhance moldability of the blade.SOLUTION: An axial flow fan includes a hub and a plurality of blades provided in a circumferential direction of the hub. In the blade, at a rear edge part on an opposite side to a front edge part in a rotation direction of the blade, a notch part partitioning the rear edge part into an outer peripheral side rear edge part and an inner peripheral side rear edge part is formed so as to extend from the rear edge part toward the front edge part. On a blade surface of the blade, provided is a rib extending from the hub toward an outer peripheral direction along the front edge part, and formed is a first thinned part that is adjacent to an end part on an outer peripheral side of the rib, and whose wall thickness of the blade is made thin.SELECTED DRAWING: Figure 5
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Inventors:
SAWADA HIROTAKA
Application Number:
JP2016188109A
Publication Date:
April 05, 2018
Filing Date:
September 27, 2016
Export Citation:
Assignee:
FUJITSU GENERAL LTD
International Classes:
F04D29/38
Domestic Patent References:
| JP2013108442A | 2013-06-06 | |||
| JP2011074817A | 2011-04-14 | |||
| JP2001115995A | 2001-04-27 | |||
| JP2014206054A | 2014-10-30 |
Foreign References:
| CN104061187A | 2014-09-24 | |||
| CN102588339A | 2012-07-18 |
Attorney, Agent or Firm:
Sakai International Patent Office