B - Operations – Transporting – 24 – C
Patent
B - Operations, Transporting
24
C
B24C 5/04 (2006.01) B05B 1/04 (2006.01)
Patent
CA 2177250
Surface treatment nozzle for projecting solid particles carried along in a pressurized gas stream. Said nozzle comprises a channel having, in the direction of flow of the solid particles, firstly a converging section (6), then a diverging section (7) which opens from the nozzle as an outlet slot (4) and whose cross section is flattened parallel to said outlet slot, at least in the vicinity thereof. The channel cross section varies gradually along its entire length; the converging section (6) comprises an upstream end (5) flattened parallel to the outlet slot, the diverging section having two lateral portions of enlarged cross section (41).
L'invention concerne une buse de traitement de surface destinée à projeter des particules solides entraînées dans un flux de gaz sous pression, ladite buse comportant un canal qui présente, dans le sens de l'écoulement des particules solides, d'abord un tronçon convergent (6) puis un tronçon divergent (7) qui débouche à l'extérieur de la buse par une fente de sortie (4) et qui présente une section de forme aplatie parallèlement à cette fente de sortie (4), au moins au voisinage de ladite fente de sortie (4). Le canal présente des variations de sections progressives sur toute sa longueur, le tronçon convergent (6) comporte une extrémité d'aval (5) aplatie parallèlement à la fente de sortie, et le tronçon divergent présente deux parties latérales de section élargie (4¿1?).
Cotella Philippe
Mollard Thierry
Cae Electronics Ltd.
Swabey Ogilvy Renault
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