BURNER FOR CUTTING METALLIC MATERIAL AND FOR TREATING SURFACE Russian patent published in 2003 - IPC

FIELD: burners for gas-jet treatment of metals, namely for cutting and depositing different coatings onto surface. SUBSTANCE: burner includes precombustion chamber separated from combustion chamber of burner by means of intermediate nozzle with radial openings for supplying main flow of oxidizer to combustion chamber. Intermediate nozzle is mounted coaxially relative to mixing member for forming uniformly arranged on its cylindrical surface ducts for supplying oxidizer. Said ducts are connected with passages arranged on cone surface and designed for feeding fuel to precombustion chamber provided with outlet openings directed towards igniter. Cylindrical precombustion chamber has cross ducts in its wall for radially feeding part of main flow of oxidizer. EFFECT: enhanced arrangement of burner ducts providing desired relation of fuel components and stabilized flame front in precombustion chamber. 2 cl, 1 dwg