Title:
COMPOSITE MATERIAL BLADE AND METHOD FOR PRODUCING COMPOSITE MATERIAL BLADE
Document Type and Number:
WIPO Patent Application WO/2018/221597
Kind Code:
A1
Abstract:
The present invention minimizes decreases in strength in a blade root section when a composite material is used in a moving blade. Provided is a composite material blade (1) that is formed by layering composite material layers in which reinforcing fibers are impregnated with a resin and that comprises a blade root section (14) and a blade section (10) extending in the lengthwise direction from the blade root section (14). The composite material blade (1) additionally comprises: a first layered body (30) that extends in the lengthwise direction in the blade section (10) and that extends along a first inclination direction (A1) inclined in a direction intersecting the lengthwise direction in the blade root section (14); a second layered body (40) that extends along the lengthwise direction and is in contact with the first layered body (30) in the blade section (10) and that extends along a second inclination direction (B1) inclined toward a side in the opposite direction from the first inclination direction (A1) and separates from the first layered body (30) in the blade root section (14); and a third layered body (50) provided between the first layered body (30) and the second layered body (40) in the blade root section (14).
Inventors:
OKABE RYOJI (JP)
NONAKA YOSHINORI (JP)
SHINDO KENTARO (JP)
KAMIYA MASAMI (JP)
NONAKA YOSHINORI (JP)
SHINDO KENTARO (JP)
KAMIYA MASAMI (JP)
Application Number:
PCT/JP2018/020780
Publication Date:
December 06, 2018
Filing Date:
May 30, 2018
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
F01D5/28; F01D5/30
Foreign References:
| JP2014084864A | 2014-05-12 | |||
| US20160138406A1 | 2016-05-19 | |||
| US4810167A | 1989-03-07 | |||
| US20160146021A1 | 2016-05-26 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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