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Patent Searching and Data


Title:
貫流ファン及び空気調和機の室内機
Document Type and Number:
Japanese Patent JP5269060
Kind Code:
B2
Abstract:
An impeller element 14 includes a plurality of blades 13 disposed along an outer circumference of a circular support plate 12. Each blade 13 is divided into a plurality of blade sections in a rotational axis direction AX. At least one of the divided blade sections as a long-chord blade section 20 is configured such that a chord 28a as a line segment connecting a blade outer-circumferential edge 20b and a blade inner-circumferential edge 20a of the blade 13 in a cross section perpendicular to a rotational axis 17 of the blade 13 has a greater length than a chord 28b of another one of the blade sections as a short-chord blade section 21. The blade inner-circumferential edge 20a of the at least one long-chord blade section 20 having the longer chord 28a protrudes toward the inner circumferential side, relative to the blade inner-circumferential edge 21 a of the at least other one of the blade sections as the short-chord blade section 21 having the shorter chord 28b.

Inventors:
Takahide Tadokoro
Naofumi Ikeda
Shingo Hamada
Mitsuhiro Shirota
Application Number:
JP2010287844A
Publication Date:
August 21, 2013
Filing Date:
December 24, 2010
Export Citation:
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Assignee:
Mitsubishi Electric Corporation
International Classes:
F04D17/04; F04D25/08; F24F1/00
Domestic Patent References:
JP4989705B2
JP2006329099A
Foreign References:
WO2006035933A1
Attorney, Agent or Firm:
Hisao Kobayashi
Kiyoshi Yasushima
Takanashi Norio
Motoki Shandong
Taku Ogawa
Murata Kensei
Moto Otani
Kentaro Yokoi
Small change Yukie