FLAME-JET TOOL NOZZLE Russian patent published in 1998 - IPC

FIELD: equipment for applying different-function coatings such as wear resistant, corrosion resistant, refractory ones, heat sources for locally heating surface portions and cutting metallic or non-metallic materials, for example granite, ferroconcrete. SUBSTANCE: nozzle is provided with annular combustion chamber having parallel equal-diameter extension pipe opened to end of nozzle. Generatrix of inner cone surface of annular diffuser crosses axis of central duct at point spaced by distance equal to 0.8-1.5 diameter of outer surface of diffuser in cavity of extension pipe. EFFECT: improved design. 1 dwg