公开(公告)号：US10746046B2

公开(公告)日：2020-08-18

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 ,  D03D3/06 ,  D03D25/00 ,  D03D49/00 ,  F01D25/24 ,  F02K1/64

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.