Patent ID: 6277323
Filing Date: 2001-08-21
Classification: F23D,Y02E

Abstract:
A cutting nozzle for a postmixed oxy-fuel gas torch, the nozzle comprising:an integral body having a plurality of bores for respectively conducting fuel gas, preheat oxygen and cutting oxygen through the nozzle, each of the plurality of bores terminating in a respective discharge orifice;a shroud disposed about and extending axially from the discharge orifices, the shroud having an axial extent sufficient to protect at least the discharge orifices from splash-back, promote mixing of gases discharged through the bores, and channel the discharged gases to produce a gas stream that maintains its shape over a greater distance than a similar nozzle not having a shroud; andthe integral body comprises a helical thread adapted to engage a complimentary thread in the postmixed oxy-fuel gas torch.