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Title:
TURBOFAN, AND MANUFACTURING METHOD FOR TURBOFAN
Document Type and Number:
WIPO Patent Application WO/2014/168261
Kind Code:
A1
Abstract:
 The objective of the present invention is to provide a low-cost turbofan that can be more readily produced than conventional turbofans. This turbofan is characterized by the following being individually formed using a thermoplastic resin: a main plate that has, at the center thereof, a boss to be fixed to the rotary shaft of a motor; and a plurality of blade members and a shroud that form intake guide walls. The turbofan is further characterized by: the main plate having parts that engage with the plurality of blade members; the shroud having parts that engage with the plurality of blade members; and the plurality of blade members being engaged, in parallel to the rotary shaft, to the plurality of engagement parts of the main plate and the shroud, and then being integrated with the engagement parts by ultrasonic welding.

Inventors:
WATANABE HITOSHI (JP)
IWAI HARUYOSHI (JP)
KATOU TAKAHISA (JP)
Application Number:
PCT/JP2014/060991
Publication Date:
October 16, 2014
Filing Date:
April 11, 2014
Export Citation:
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Assignee:
NISSHINBO MECHATRONICS INC (JP)
International Classes:
F04D29/30
Domestic Patent References:
WO2007102476A12007-09-13
Foreign References:
JP3668782B22005-07-06
JP2008144667A2008-06-26
JPS5045445A1975-04-23
US20040258519A12004-12-23
JP2008075626A2008-04-03
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