Patent ID: 7044730

Claim:
Device for the combustion of gas containing hydrocarbons that can be burned in the presence of air, in which the fuel gas arrives by a central supply comprising a gas supply tube ( 1 ) situated along the axis of a body forming a venturi ( 2 ), wherein the venturi ( 2 ) comprises an upstream conical converging part ( 3 ), an intermediate cylindrical neck part ( 4 ) and a downstream conical diverging part ( 5 ), wherein a plurality of gas supply tubes ( 6 ) are annularly arranged in at least one ring around the gas supply tube ( 1 ), at least the ends of the annularly arranged gas supply tubes ( 6 ) having their axes diverging from the gas supply tube ( 1 ) and appreciably parallel to a wall of the downstream conical diverging part ( 5 ), wherein the gas supply tube ( 1 ) extends into the converging part ( 3 ) up to a first point situated at a level where the converging part ( 3 ) is joined to the neck ( 4 ), wherein the annularly arranged gas supply tubes ( 6 ) extend into the converging part ( 3 ) up to a second point, such that each of the annularly arranged gas supply tubes ( 6 ) extends up to the same second point, and wherein the second point is situated at the level where the converging part ( 3 ) is joined to the neck ( 4 ) or the second point is situated in the converging part ( 3 ) at a level before the converging part ( 3 ) is joined to the neck ( 4 ).