公开(公告)号：US10906267B2

公开(公告)日：2021-02-02

申请号：US15804179

申请日：2017-11-06

Applicant: Ratier-Figeac SAS

Inventor： Pascal Amat ,  Stéphane Grimal

IPC: B32B1/02 ,  B32B5/08 ,  B29C70/16 ,  B29D99/00 ,  B29C70/86 ,  B29C70/88 ,  B32B1/08 ,  B32B5/26 ,  B32B3/12 ,  B32B5/02 ,  B32B5/18 ,  B32B37/14 ,  B64C11/26 ,  B29K101/10 ,  B29K307/04 ,  B29K101/12 ,  B29K63/00 ,  B29K309/08 ,  B29L31/08 ,  F01D5/28 ,  F04D29/38

Abstract: A method of manufacturing a composite component comprises forming a core, surrounding the circumference of the core with a first layer of fabric, applying a second layer of fabric having a different coefficient of thermal expansion from the first layer such that the second layer extends around at least a portion of the circumference of the core and curing the component such that the second layer imparts a compressive or tensile force on the core.

公开(公告)号：US11313230B2

公开(公告)日：2022-04-26

申请号：US15806477

申请日：2017-11-08

Applicant: Ratier-Figeac SAS

Inventor： Pascal Amat

IPC: F01D5/14 ,  B64C11/20 ,  B64C11/26 ,  B23P15/04 ,  B65H51/00 ,  F01D5/28

Abstract: A propeller blade comprises a root, a tip distal from the root, a trailing edge extending from the root to the tip, a trailing edge, e.g. foam, insert, a shell forming an outer surface of the propeller blade and a plurality of stitches of yarn extending through two parts of the shell adjacent the trailing edge, wherein the yarns do not extend through the trailing edge insert.

公开(公告)号：US10407159B2

公开(公告)日：2019-09-10

申请号：US15806502

申请日：2017-11-08

Applicant: Ratier-Figeac SAS

Inventor： Pascal Amat

IPC: B64C11/26 ,  B32B5/18 ,  B32B7/08 ,  B32B27/06 ,  B32B27/40 ,  D05B69/32 ,  B64C11/20

Abstract: A spar for a propeller blade comprises central structural member extending from a root to a tip of the spar. A first portion of the central structural member extends from the root of the spar and a second portion extends from the tip and adjoins the first portion. The central structural member includes a first plurality of plies of composite material on a pressure side thereof and a second plurality of plies of composite material on a suction side thereof wherein the first plurality of plies are in contact with the second plurality of plies in the second portion from a leading edge to a trailing edge thereof. A plurality of yarns extends through the central structural member in at least the second portion.

公开(公告)号：US20180319100A1

公开(公告)日：2018-11-08

申请号：US15919369

申请日：2018-03-13

Applicant: Ratier-Figeac SAS

Inventor： Pascal Amat

IPC: B29C70/22 ,  B32B5/02 ,  B32B5/26 ,  B32B7/12 ,  D04C1/06 ,  F01D5/28

CPC classification number: D04C1/06 ,  D10B2403/023 ,  D10B2505/02

Abstract: A multi-layer braided article comprises a braid folded over itself to form a first layer and a second layer, and one or more blind stitches in the first layer. The one or more stitches define an edge of the first layer about which the braid folds from the first layer into the second layer.

公开(公告)号：US11674398B2

公开(公告)日：2023-06-13

申请号：US17729159

申请日：2022-04-26

Applicant: Ratier-Figeac SAS

Inventor： Pascal Amat

IPC: F01D5/14 ,  B64C11/20 ,  B64C11/26 ,  B23P15/04 ,  B65H51/00 ,  F01D5/28

CPC classification number: F01D5/147 ,  B23P15/04 ,  B64C11/205 ,  B64C11/26 ,  B65H51/00 ,  F01D5/282 ,  F05D2230/60 ,  F05D2240/304 ,  F05D2300/2102 ,  F05D2300/224 ,  F05D2300/601 ,  F05D2300/603 ,  F05D2300/612 ,  Y10T29/49337

Abstract: A propeller blade comprises a root, a tip distal from the root, a trailing edge extending from the root to the tip, a trailing edge, e.g. foam, insert, a shell forming an outer surface of the propeller blade and a plurality of stitches of yam extending through two parts of the shell adjacent the trailing edge, wherein the yarns do not extend through the trailing edge insert.

公开(公告)号：US11090880B2

公开(公告)日：2021-08-17

申请号：US15919369

申请日：2018-03-13

Applicant: Ratier-Figeac SAS

Inventor： Pascal Amat

IPC: B29C70/22 ,  D04C1/06 ,  B32B5/02 ,  B32B5/26 ,  B32B7/12 ,  F01D5/28 ,  B29L31/30

Abstract: A multi-layer braided article comprises a braid folded over itself to form a first layer and a second layer, and one or more blind stitches in the first layer. The one or more stitches define an edge of the first layer about which the braid folds from the first layer into the second layer.

公开(公告)号：US12187413B2

公开(公告)日：2025-01-07

申请号：US18364188

申请日：2023-08-02

Applicant: Ratier-Figeac SAS

Inventor： Pascal Amat ,  Olivier Picot

IPC: B29C59/16 ,  B29C70/24 ,  B64C11/26 ,  B29K105/08 ,  B29L31/08

Abstract: A propeller blade comprising a composite member. The composite member comprises a stack of plies and a matrix in which the stack of plies is embedded. At least one ply comprises a plurality of first yarns aligned in a first direction defining a plane of the ply and a plurality of second yarns extending transverse to the plane of the ply. Each second yarn does not extend through more than one ply. Also provided is a propelling system comprising the propeller blade, a composite propeller blade prepreg, and a method of forming a propeller blade.

公开(公告)号：US11884378B2

公开(公告)日：2024-01-30

申请号：US17307014

申请日：2021-05-04

Applicant: Ratier-Figeac SAS

Inventor： Bruno Seminel ,  Pascal Amat ,  Arnaud Andrzejewski

IPC: B64C11/26 ,  D04C1/06

CPC classification number: B64C11/26 ,  D04C1/06 ,  D10B2505/12

Abstract: A multi-layer braided article and a method of making the multi-layer braided article. The multi-layer braided article includes a braid extending along a first axis, wherein the braid is folded over itself to form a first layer and a second layer; and a wrapper laid over the first layer of the braid and extending circumferentially around the first axis, wherein the wrapper defines an edge of the first layer about which the braid is folded. The multi-layer braided article may form part of a blade for an aircraft. A sleeve may be provided around a conical portion of the article to connect the article to something else, such as a propeller hub, where the multi-layer braided article is formed as part of a blade. The sleeve may provide a primary or secondary load path.