Burner for chemical vapour deposition of glass
AssigneePrysmian Cavi E Sistemi Energia S.R.L.
InventorsCarlo Cognolato, Francesco Mole, Andrea Demergazzi, Franco Veronelli
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Abstract
A burner for a vapour deposition process has a central nozzle for ejecting a glass precursor material, at least a crown of nozzles surrounding said central nozzle for ejecting a flame reactant, and a circular nozzle between said central nozzle and said crown of nozzles for ejecting an innershield gas, wherein the central nozzle has a concave shape in a cross section in the axial plane and, preferably, a symmetry about an axial plane.
Claims14
1-13. (canceled)
A burner for a vapour deposition process, comprising a central nozzle for ejecting a glass precursor material, said central nozzle having a concave shape.
A chemical vapor deposition process, comprising ejecting a stream of glass precursor material having a concave cross section.
Dependencies are inferred from the claim text.