Title:
A bucket and a fan
Document Type and Number:
Japanese Patent JP5982999
Kind Code:
B2
Abstract:
A rotor blade main body (37) includes multiple first composite sheet groups (51) and multiple second composite sheet groups (53) which are provided in a blade thickness direction (TD). Each first composite sheet group (51) includes multiple composite sheets (49) which are stacked one on another from a blade thickness center (TC) side toward a dorsal surface (39). Each second composite sheet group (53) includes multiple composite sheets (49) which are stacked one on another from the blade thickness center (TC) side toward a ventral surface (41). A composite direction (CD) of orientation directions of fibers in the multiple composite sheets (49) in each of the sheet groups (51, 53) inclines by 20 degrees to 45 degrees from a span direction (SD).
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Inventors:
Takeshi Murooka
Application Number:
JP2012104433A
Publication Date:
August 31, 2016
Filing Date:
May 01, 2012
Export Citation:
Assignee:
Ihi Co., Ltd.
International Classes:
F02K3/06; B32B5/12; B32B5/28; F02C7/00; F04D29/38
Domestic Patent References:
| JP52053399A | ||||
| JP2003254298A | ||||
| JP4666719B2 | ||||
| JP2005113908A |
Foreign References:
| US5375978 | ||||
| US20060243860 | ||||
| WO2012008452A1 |
Attorney, Agent or Firm:
Hidekazu Miyoshi
Iwa Saki Kokuni
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu
Iwa Saki Kokuni
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu
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