公开(公告)号：US20200095873A1

公开(公告)日：2020-03-26

申请号：US16617672

申请日：2018-05-30

申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.

发明人： Ryoji OKABE ,  Kentaro SHINDO ,  Masami KAMIYA ,  Yoshinori NONAKA

IPC分类号： F01D5/28 ,  F01D5/30

摘要： A composite blade includes an airfoil; and a blade root including a straight section from a blade end part being a connection location with the airfoil to an inclination start part between the blade end part and a base end, and a bearing section from the inclination start part to the base end. A laminate of composite layers with reinforced fibers impregnated with resin is provided across the airfoil and the blade root. A metal body is provided on the blade root. The laminate extends along the longitudinal direction in the airfoil and in the straight section, and extends to be inclined away from a center axis in the bearing section. The metal body is provided on both surfaces of the laminate in the blade root, extends along the longitudinal direction in the straight section, and extends to be inclined away from the center axis in the bearing section.

公开(公告)号：US20190301290A1

公开(公告)日：2019-10-03

申请号：US16353223

申请日：2019-03-14

申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.

发明人： Masami Kamiya ,  Ryoji OKABE ,  Kentaro SHINDO ,  Yoshinori NONAKA

IPC分类号： F01D5/28 ,  B29C70/20 ,  F01D5/14 ,  F01D5/30

摘要： A composite blade formed by laying up composite material layers in which reinforced fibers are impregnated with resin in a blade thickness direction includes a blade root provided on a base side, an airfoil extending from a tip side of the blade root, a metal member provided on the blade root, and a fastener configured to fasten the blade root and the metal member. The blade root includes a main body portion, a curved portion that is curved outward in the blade thickness direction from the main body portion, and an extending portion that extends outward in the blade thickness direction from the curved portion. The metal member is fixed to the extending portion with the fastener.

公开(公告)号：US20170008250A1

公开(公告)日：2017-01-12

申请号：US15117895

申请日：2015-03-17

申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.

发明人： Masahiro KASHIWAGI ,  Yoshinori NONAKA ,  Toshio ABE

IPC分类号： B32B5/06 ,  B64C3/26 ,  B64C1/12 ,  B32B5/12 ,  B29C53/02

CPC分类号： B32B5/06 ,  B29C53/02 ,  B29C70/202 ,  B29C70/228 ,  B29C70/30 ,  B29K2105/08 ,  B29K2105/101 ,  B29K2105/105 ,  B29K2105/108 ,  B29K2307/04 ,  B29L2031/3082 ,  B29L2031/3085 ,  B29L2031/737 ,  B32B3/266 ,  B32B5/12 ,  B32B5/14 ,  B32B5/142 ,  B32B5/26 ,  B32B5/28 ,  B32B7/005 ,  B32B2250/20 ,  B32B2260/021 ,  B32B2260/023 ,  B32B2260/046 ,  B32B2305/07 ,  B32B2305/10 ,  B32B2305/20 ,  B32B2307/50 ,  B32B2307/54 ,  B32B2313/04 ,  B32B2605/18 ,  B64C1/06 ,  B64C1/068 ,  B64C1/12 ,  B64C1/14 ,  B64C1/1492 ,  B64C3/18 ,  B64C3/20 ,  B64C3/26 ,  B64C3/34 ,  B64C2001/0072 ,  Y02T50/43 ,  Y10T428/16 ,  Y10T428/162 ,  Y10T428/164 ,  Y10T428/24083 ,  Y10T428/24099 ,  Y10T428/24116 ,  Y10T428/24124 ,  Y10T428/24132 ,  Y10T428/24322 ,  Y10T428/24942

摘要： The purpose of the present invention is to provide a lightweight composite material structure while suppressing a drop in strength. In a composite material structure, which is configured as a fiber-reinforced plastic composite material extending in one direction and having a plurality of holes (5) formed at intervals in a row in the one direction and which is subjected to a tensile load and/or a compressive load in the one direction, a peripheral region (3a) around the holes (5) comprises a first area (10) obtained by bending composite material, which is reinforced using continuous fibers that have been made even in the longitudinal direction, so that the center line of the width (W) of the composite material weaves between adjacent holes (5) and zigzags in the one direction. The tensile rigidity and/or compressive rigidity in the one direction of the peripheral region (3a) around the holes (5) is lower than the tensile rigidity and/or the compressive rigidity in the one direction of the other regions (3b) that surround the peripheral regions (3a).

摘要翻译： 本发明的目的是提供一种轻质的复合材料结构，同时抑制强度的降低。 在复合材料结构中，其被构造为在一个方向上延伸的纤维增强塑料复合材料，并且具有多个孔（5），所述多个孔沿一个方向以一排排成形并且经受拉伸载荷和/ 或一个方向上的压缩载荷，围绕孔（5）的周边区域（3a）包括通过弯曲复合材料而获得的第一区域（10），所述第一区域是使用已经在纵向方向上制成的连续纤维来增强的， 使得复合材料的宽度（W）的中心线在相邻孔（5）之间编织并在一个方向上形成锯齿形。 围绕孔（5）的周边区域（3a）的一个方向的拉伸刚度和/或抗压刚度低于围绕其它区域（3b）的一个方向的拉伸刚度和/或抗压刚度 周边区域（3a）。

公开(公告)号：US20210108521A1

公开(公告)日：2021-04-15

申请号：US16613305

申请日：2018-05-30

申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.

发明人： Ryoji OKABE ,  Yoshinori NONAKA ,  Kentaro SHINDO ,  Masami KAMIYA

IPC分类号： F01D5/28 ,  F01D5/30 ,  B29C70/30 ,  B29C70/16

摘要： A composite blade is formed by laying up composite layers in which reinforced fibers are impregnated with resin, and has a blade root and an airfoil extending from the blade root in a longitudinal direction. The composite blade includes a first laminate of the composite layers extending along the longitudinal direction in the airfoil and extending along a first inclination direction inclined toward a direction intersecting the longitudinal direction in the blade root; a second laminate of the composite layers extending along the longitudinal direction and contacting the first laminate in the airfoil, the second laminate extending along a second inclination direction inclined toward a direction opposite to the first inclination direction in the blade root and being separated from the first laminate; and a third laminate of the composite layers provided between the first and second laminates in the blade root

公开(公告)号：US20190301285A1

公开(公告)日：2019-10-03

申请号：US16353229

申请日：2019-03-14

申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.

发明人： Masami Kamiya ,  Ryoji OKABE ,  Yoshinori NONAKA ,  Kentaro SHINDO

IPC分类号： F01D5/14 ,  F01D5/28 ,  B29C70/20 ,  B29C70/30

摘要： A composite blade is formed by laying up composite material layers in which reinforcement fibers are impregnated with resin in a thickness direction of the blade. The composite blade includes a blade root on a base end side, an airfoil on a tip side, a first lay-up in which some composite material layers are laid up in the blade root so as to space parts of the composite material layers to form spacing parts and to extend from the distal toward the base end side in the thickness direction, and second lay-ups in which some composite material layers are laid up in the spacing parts so as to be lined up in the thickness direction. Among the second lay-ups, a second lay-up closer to a center side than to an outer side in the thickness direction is a larger distance from a proximal position to a top position.