公开(公告)号：US20170370247A1

公开(公告)日：2017-12-28

申请号：US15672638

申请日：2017-08-09

Applicant: Safran Nacelles

Inventor： Benjamin PROVOST ,  Bertrand DESJOYEAUX ,  Sébastien LOUCHARD ,  Arnaud MARICAL

IPC: F01D25/00 ,  F01D25/24 ,  D03D49/00 ,  D03D3/06 ,  F02K1/64

CPC classification number: F01D25/005 ,  D03D3/06 ,  D03D25/005 ,  D03D49/00 ,  D10B2505/02 ,  F01D25/24 ,  F02K1/64 ,  F05D2220/323 ,  F05D2230/50 ,  F05D2240/10 ,  F05D2300/603

Abstract: The present disclosure provides a method for manufacturing a preform made of reinforcement fibers woven in a longitudinal direction. The preform is impregnated with resin in order to form an elongated element having a variable transverse cross-section. In one form, the method includes the step of simultaneously including a reduction (or increase) in width and an increase (or reduction) in height. The variable cross-section includes, along the length thereof, a consistent number (c) of continuous warp threads arranged in layers. The method for reducing width includes carrying out a change in weave, adding additional weft threads, and simultaneously drawing the teeth of the longitudinal beater reed closer together so as to increase the number of layers.