公开(公告)号：US20170175308A1

公开(公告)日：2017-06-22

申请号：US15454022

申请日：2017-03-09

Applicant: SAFRAN NACELLES

Inventor： Benjamin PROVOST ,  Julien LORRILLARD ,  Bertrand DESJOYEAUX ,  Michel ROGNANT

IPC: D03D25/00 ,  D03J1/00 ,  B29C70/24 ,  D03D15/02 ,  D03D49/06

CPC classification number: D03D25/005 ,  B29B11/16 ,  B29C70/24 ,  B29K2307/04 ,  D03J1/00 ,  D10B2505/02 ,  F01D5/282 ,  F01D9/00 ,  F01D9/04 ,  F01D25/24 ,  F01D25/243 ,  F01D25/246 ,  F01D25/265 ,  Y02T50/672

Abstract: The present disclosure concerns a preform for a curved composite stiffener for an axisymmetric part such as a shroud, including at least one web and at least one flange curved about an axis of revolution of the preform and defining a substantially “T” or an “I” shaped section. In one form, the preform includes a web and a flange, wherein the web includes a plurality of warp yarns circumferentially oriented relative to the axis of revolution of the preform, and a plurality of weft yarns oriented radially relative to said axis, and the flange includes a plurality of warp yarns circumferentially oriented relative to the axis of revolution of the preform, and a plurality of weft yarns substantially parallel to said axis.

公开(公告)号：US20190106817A1

公开(公告)日：2019-04-11

申请号：US16212738

申请日：2018-12-07

Applicant: Safran Nacelles

Inventor： Julien LORRILLARD ,  Bertrand DESJOYEAUX ,  Michel ROGNANT ,  Benjamin PROVOST

IPC: D03D25/00 ,  B29B11/16 ,  D03D1/00 ,  D03D49/20 ,  D03D13/00 ,  D03D11/02

Abstract: The disclosure relates to a method of manufacturing a preform including a core and a sole. The method includes contour weaving the preform on a lap roller having a groove or an outgrowth allowing shape weaving of the core and the sole of the preform. At least one portion of the core and at least one portion of the sole include weft yarns which cross each other on common warp yarns.