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公开(公告)号：US11773733B2
公开(公告)日：2023-10-03
申请号：US17914641
申请日：2021-03-18
CPC分类号： F01D5/282 , B29C70/24 , F05D2220/36 , F05D2300/603
摘要： A fibrous texture forming the fibrous reinforcement of a turbomachine blade made of composite material which has a three-dimensional weaving between warp yarns or strands made of first fibers and weft yarns or strands made of first fibers, the texture including a blade root portion, a blade airfoil portion and a free end, the texture extending along the transverse direction between a first edge corresponding to a leading edge of the blade and a second edge corresponding to a trailing edge of the blade. The blade airfoil portion has a reinforced area extending along the longitudinal direction from the free end over a first length, and along the transverse direction from the second edge over a second length less, the reinforced area including weft yarns or strands made of second fibers different from the first fibers, the second fibers having an elongation at break greater than the first fibers.
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公开(公告)号：US11808171B2
公开(公告)日：2023-11-07
申请号：US17637941
申请日：2020-08-27
CPC分类号： F01D5/282 , F01D5/147 , F05D2220/36 , F05D2300/501 , F05D2300/603 , F05D2300/614
摘要： The invention relates to a blade of a fan of a turbomachine, comprising a structure made from composite material, including a fibrous reinforcement obtained by means of the three-dimensional weaving of strands and a matrix in which the fibrous reinforcement is embedded,—the fibrous reinforcement comprising a first portion forming the leading edge and a second portion forming all or part of the trailing edge,—the strands of the fibrous reinforcement comprising first strands having a predetermined elongation at break and second strands having an elongation at break higher than that of the first strands, the first portion comprising all or some of the first strands while the second portion comprises all or some of the second strands.
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