Patent ID: 8784092

Claim:
A device for producing a composite material part for contact with aerodynamic flows in a direction of flow, comprising: a mold ( 32 ) constructed and arranged to directly support and provide shaping for a resin matrix of the composite material part to be produced at a first surface; a separating film ( 50 ) directly disposed on a second surface of the resin matrix of the composite material part to be produced, the second surface being opposite the first surface, the separating film ( 50 ) being constructed and arranged to detach the device from the resin matrix of the composite material part to be produced after the resin matrix has polymerized; a compression subunit ( 34 , 36 , 38 ) constructed and arranged to compress the composite material part to be produced, the compression subunit ( 34 , 36 , 38 ) including a compacting bladder ( 34 ), the compression subunit ( 34 , 36 , 38 ) configured to evacuate gases from the device in a direction away from the compacting bladder toward the mold ( 32 ); and a drainage system constructed and arranged to drain gases emanating from the composite material part during production, the drainage system including: a plate ( 42 ) disposed between the separating film ( 50 ) and the compacting bladder ( 34 ), a flexibility of the plate being limited so as not to permit the plate ( 42 ) to crumple upon itself, the plate defining a plurality of openings ( 44 ), the plate being constructed and arranged to both (i) drain the gases emanating from the composite material part and (ii) provide molding of the second surface of the resin matrix of the composite material part, wherein a shape of each opening and an arrangement of the plurality of openings are constructed and arranged such that degradation of aerodynamic characteristics of the composite material part to be produced are limited, wherein each of the plurality of openings has an area section that is smaller than 5 mm 2 , wherein the plurality of openings ( 44 ) are arranged along lines that are arranged in a direction of the aerodynamic flows that contact the composite material part to be produced and in staggered rows from each line to each adjacent line, and wherein adjacent openings along any one of the lines are spaced apart at a distance of approximately 50 mm.