Device for making a part of a composite material by resin-transfer moulding

A device for making a part in composite material by resin-injection molding comprising a manufacturing mold in which a blank of the part capable of being impregnated with resin is intended to be placed, the blank having a planar base with at least one protrusion, wherein the manufacturing mold is subdivided into a matrix and one or several mobile structural elements intended to be indexed on the matrix, wherein the at least one protrusion is surrounded by the structural elements and a portion of the at least one protrusion not covered by the structural elements is disposed beneath a covering element, the whole forms, after assembly, an imprint corresponding to a shape of the part to be manufactured, wherein the structural elements are capable of ensuring a role of a vent, further including injection means positioned on a dispensing grid and being distributed over a surface of the mold configured for promoting diffusion of the resin in a transverse and/or laminar way, such that the structural elements are capable of guaranteeing compaction of the blank and proportioning of the relevant areas by the structural elements in the mould in a homogeneous way.