PROPULSIVE POWDER STRANDS, THEIR MANUFACTURING PROCESS AND PROPULSIVE LOADS OF BUNCHES MADE FROM SUCH STRANDS

Abstract

Abstract Translated from French L'INVENTION CONCERNE UN BRIN DE POUDRE PROPULSIVE EN FORME DE CYLINDRE DROIT COMPORTANT DES CANAUX CENTRAUX, CARACTERISE EN CE QUE LEDIT BRIN 10 EST CONSTITUE PAR TROIS LOBES IDENTIQUES SECANTS, SENSIBLEMENT CIRCULAIRES 1, 2, 3 DE RAYON R, LES AXES DE CHACUN DESDITS LOBES ETANT EGALEMENT LES AXES DE TROIS CANAUX CYLINDRIQUES CIRCULAIRES CREUX 4, 5, 6 DE RAYON R, CHACUN DESDITS CANAUX ETANT OUVERT SUR L'EXTERIEUR AU MOYEN D'UNE FENTE RADIALE CREUSE 7, 8, 9 A BORDS SENSIBLEMENT PARALLELES TRAVERSANT LE LOBE CORRESPONDANT LE LONG DU PLAN DE SYMETRIE PASSANT PAR L'AXE DUDIT CANAL. L'INVENTION CONCERNE EGALEMENT UN PROCEDE D'OBTENTION DES BRINS SELON L'INVENTION PAR EXTRUSION D'UNE PATE PROPULSIVE AU TRAVERS D'UNE FILIERE DEFINISSANT UN CYLINDRE DROIT CONSTITUE PAR TROIS LOBES ET MUNIE DE TROIS BROCHES ET PAR OUVERTURE, APRES EXTRUSION, DES LOBES DU BRIN EXTRUDE AU MOYEN DE TROIS COUTEAUX. L'INVENTION PERMET DE FABRIQUER DES CHARGEMENTS DE BRINS DE POUDRE EN FAGOT DONNANT UN DEBIT GAZEUX PLUS PROGRESSIF QUE CEUX OBTENUS AVEC DES CHARGEMENTS EN FAGOT TRADITIONNELS. THE INVENTION CONCERNS A STRAND OF PROPULSIVE POWDER IN THE SHAPE OF A STRAIGHT CYLINDER CONTAINING CENTRAL CHANNELS, CHARACTERIZED IN THAT IT STRAND 10 IS CONSTITUTED BY THREE IDENTICAL SECOND LOBES, SENSITIVELY CIRCULAR 1, 2, 3 OF RADIUS R, THE AXES OF EACH LOBES ALSO BEING THE AXES OF THREE HOLLOW CIRCULAR CYLINDRICAL CHANNELS 4, 5, 6 OF RADIUS R, EACH OF THE SAID CHANNELS OPENING TO THE EXTERIOR BY MEANS OF A HOLLOW RADIAL SLOT 7, 8, 9 WITH SENSITIVELY PARALLEL EDGES THROUGH THE LOBING ALONG THE PLANE OF SYMMETRY PASSING THROUGH THE AXIS OF THE DIT CANAL. THE INVENTION ALSO CONCERNS A PROCESS FOR OBTAINING STRANDS ACCORDING TO THE INVENTION BY EXTRUSION OF A PROPULSIVE PASTE THROUGH A DIE DEFINING A STRAIGHT CYLINDER CONSTITUTED BY THREE LOBES AND PROVIDED WITH THREE SPINDLES AND BY OPENING, AFTER EXTRUSION, OF THE LOBES OF THE EXTRUDED STRAND BY MEANS OF THREE KNIVES. THE INVENTION ALLOWS THE MANUFACTURING OF LOADS OF POWDER STRANDS IN FAGOT GIVING A MORE PROGRESSIVE GAS FLOW THAN THOSE OBTAINED WITH TRADITIONAL FAGOT LOADS.

Inventors

• 👤 Alain Lefumeux
• 👤 Michel Hossard

Bibliographic Details