公开(公告)号：US20230383449A1

公开(公告)日：2023-11-30

申请号：US18248642

申请日：2021-10-11

Applicant: SAFRAN CERAMICS

Inventor： Aline PLANCKEEL

IPC: D04H13/00 ,  B28B1/30 ,  B28B1/54

CPC classification number: D04H13/00 ,  B28B1/30 ,  B28B1/54 ,  D10B2101/08

Abstract: A fibrous texture includes a stack of at least first, second, third and fourth unidirectional plies. The first, second, third and fourth plies each respectively include a first plurality of rovings aligned in a first direction, a second plurality of rovings aligned in a second direction different from the first direction, a third plurality of rovings aligned in a third direction different from the second direction and a fourth plurality of rovings aligned in a fourth direction different from the third direction. The rovings of the first plurality of rovings being spaced apart from each other by a given distance in a direction perpendicular to the first direction. The rovings of the second plurality of rovings are spaced apart from each other by a given distance in a direction perpendicular to the second direction.

公开(公告)号：US20220235498A1

公开(公告)日：2022-07-28

申请号：US17616604

申请日：2020-06-03

Applicant: SAFRAN CERAMICS

Inventor： Thierry Guy Xavier TESSON ,  Eric PHILIPPE ,  Marie LEFEBVRE ,  Aline PLANCKEEL

IPC: D03D25/00 ,  D06M23/00

Abstract: The invention relates to a three-dimensionally woven multilayer fibrous structure (20) having the same number of warp yarns woven at any level along the warp direction, the fibrous structure (20) comprising, in the warp direction, a first part (22) and a second part (24), the first part (22) having a thickness measured in a direction perpendicular to the warp and weft directions, greater than the second part (24), characterised in that the spacing between two weft planes along the warp direction is greater in the second part than in the first part (22), and in that the number of weft yarns is lower in the second part (24) than in the first part (22).