DEVICE FOR APPLYING METALLIC COATING Russian patent published in 1997 - IPC

FIELD: mechanical engineering. SUBSTANCE: device is provided with additional mixing chamber 10 arranged inside swirler 8 and made up as an ellipsoidal torus-like space and conical nozzle 11 with ring ejecting nozzle 12 mounted at the outlet of additional mixing chamber 10. Nozzle 12 is secured to the open exit of Laval nozzle 5 and provided with a ring conical passageway over its periphery. The portions of the walls of flame pipe 2 that abut against the Laval nozzle are provided with inclined passageways. The inner side of swirler 8 has additional screw passageways 13 directed toward outer screw passageways 14 that connect the passageway for supplying of additional fuel-air mixture with additional mixing chamber 10. EFFECT: enhanced efficiency. 3 dwg