-
公开(公告)号：US11015462B2
公开(公告)日：2021-05-25
申请号：US16418147
申请日：2019-05-21
摘要： A blade body made of composite material includes fiber reinforcement densified by a matrix, the blade body extending in a longitudinal direction between a root or bottom portion and a tip or top portion, and in a transverse direction between a leading edge and a trailing edge. The fiber reinforcement of the blade body includes a first portion constituted by a plurality of yarn layers interlinked by three-dimensional or multilayer weaving, and a second portion forming all or part of at least one leading edge or at least one trailing edge of a blade. The second portion includes a plurality of short fibers oriented in random manner, the yarns of the plurality of yarn layers of the first portion and the short fibers of the second portion being embedded in the matrix.
-
公开(公告)号：US11821333B2
公开(公告)日：2023-11-21
申请号：US17625195
申请日：2020-07-09
CPC分类号： F01D5/14 , F01D5/282 , B29D99/0025 , F05D2220/36 , F05D2230/50
摘要： The present invention relates to a blower vane of a turbomachine, comprising a structure made of composite material which comprises a fibrous reinforcement and a matrix in which the fibrous reinforcement is embedded. The vane comprises a first rigidification insert which extends in a first direction and at least one second insert which is connected to the first in a second direction which is non-collinear with the first direction, the first insert projecting from the vane in order to be connected to a disc of a turbomachine element.
-
公开(公告)号：US12091156B2
公开(公告)日：2024-09-17
申请号：US18022385
申请日：2021-08-17
IPC分类号： B64C11/26 , B29C70/48 , B29C70/50 , B64C11/02 , B64C11/04 , B64C11/06 , B64C11/16 , B64C11/20 , B64C27/26 , B64C27/467 , F03D1/00 , F03D1/06
CPC分类号： B64C11/26 , B29C70/48 , B64C11/06 , F03D1/0675 , B29C70/50 , B64C11/02 , B64C11/04 , B64C11/16 , B64C11/20 , B64C27/26 , B64C27/467 , F03D1/0658 , F03D1/101
摘要： An unducted fan having variable pitch blades for an aircraft or wind propulsion system is described. The fan includes a hub provided with housings pivotally receiving vanes about radial axes, and an outer casing of the hub into which circular openings of the housings open. Each vane includes a root which is rotatably mounted in the associated housing, a radially oriented blade and a disc-shaped platform extending from the blade to an edge of the circular opening. The blade includes at least one skin which includes a free lower edge facing the side of the root, wherein the platform is attached to the free lower edge of the skin.
-
公开(公告)号：US11982209B2
公开(公告)日：2024-05-14
申请号：US18010751
申请日：2021-06-09
IPC分类号： F01D5/28 , B29C70/22 , B29C70/34 , B29C70/86 , B29K307/04 , B29K705/00 , B29L31/08 , F01D5/00 , F01D5/14
CPC分类号： F01D5/282 , B29C70/222 , B29C70/34 , B29C70/86 , F01D5/005 , F01D5/147 , B29K2307/04 , B29K2705/00 , B29L2031/082 , F05D2220/32 , F05D2230/23 , F05D2230/80 , F05D2240/30
摘要： A blade for an aircraft gas turbine engine includes, in a longitudinal direction, a blade root, a shank and an aerofoil body, the aerofoil body extending in the longitudinal direction between the shank and a blade tip and in a transverse direction between a leading edge made of metal material and a trailing edge. The blade includes a blade core made of composite material having a three-dimensional woven fibrous reinforcement forming the blade root, the shank and a part of the aerofoil body. The blade also includes a skin made of composite material having a two-dimensional woven fibrous reinforcement surrounding the aerofoil body part of the blade core, the skin being interposed between the leading edge made of metal material and a front edge of the aerofoil body part of the blade core to define a thinned leading edge portion, the skin including one or more two-dimensional woven plies.
-
公开(公告)号：US11753949B2
公开(公告)日：2023-09-12
申请号：US17798453
申请日：2021-02-01
CPC分类号： F01D5/282 , D03D25/005 , F01D5/147 , F05D2220/323 , F05D2240/30 , F05D2300/603 , F05D2300/6012
摘要： A fibrous texture intended to form the fibrous reinforcement of a turbomachine blade made of composite material including a fibrous reinforcement densified by a matrix, wherein the fibrous texture includes an area of reduced stiffness including warp yarns or strands made of second fibers having a second elongation at break greater than the first elongation at break, the area of reduced stiffness extending in the longitudinal direction from the stilt area and up to a height less than or equal to 30% of the height of the blade, extending in the transverse direction between a first area and a second area, the first area extending over a first length from a first edge of the texture intended to form a leading edge, and the second area extending over a second length from a second edge of the texture intended to form a trailing edge.
-
6.发明授权公开(公告)号：US12006841B2
公开(公告)日：2024-06-11
申请号：US18025859
申请日：2021-08-31
发明人： Clément Pierre Postec , Thomas Alain De Gaillard , Guillaume Pascal Jean-Charles Gondre , Pierre-Antoine Gérard Joseph Barbier
IPC分类号： F01D5/28
CPC分类号： F01D5/282 , F05D2300/603
摘要： The present invention relates to a fan blade of a turbomachine comprising a structure made of composite material comprising a fibrous reinforcement obtained by three-dimensional weaving of strands and a matrix in which the fibrous reinforcement is embedded, which comprises a first portion forming the suction-side wall and a second portion forming the pressure-side wall, the strands of the fibrous reinforcement comprising first strands comprising carbon or aramid fibres, the Young's modulus of which is greater than 250 GPa, and second strands produced from a viscoelastic material and having a Young's modulus less than 10 GPa, the first portion comprises uniquely first strands whereas the second portion comprises second strands.
-
公开(公告)号：US20230348042A1
公开(公告)日：2023-11-02
申请号：US18022385
申请日：2021-08-17
CPC分类号： B64C11/26 , B29C70/48 , F03D1/0675 , B64C11/06
摘要： An unducted fan having variable pitch blades for an aircraft or wind propulsion system is described. The fan includes a hub provided with housings pivotally receiving vanes about radial axes, and an outer casing of the hub into which circular openings of the housings open. Each vane includes a root which is rotatably mounted in the associated housing, a radially oriented blade and a disc-shaped platform extending from the blade to an edge of the circular opening. The blade includes at least one skin which includes a free lower edge facing the side of the root, wherein the platform is attached to the free lower edge of the skin.
-
-
-
-
-
-
搜索结果
7 条记录 (耗时 0.013 秒)
