Method for manufacturing a preform made of woven reinforcement fibers having a variable cross-section
US10746046B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2017 |
| Grant date | Aug 18, 2020 |
| Priority date | — |
| Expiry date | Aug 30, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2300/603
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.