초록 ▼

The technical field of the invention is making a burner capable of using one or more fuels, optionally simultaneously, together with particular features for the gas feed ducts. Such a burner comprises at least four substantially concentric ducts for feeding fuel and primary combustion air, including

The technical field of the invention is making a burner capable of using one or more fuels, optionally simultaneously, together with particular features for the gas feed ducts. Such a burner comprises at least four substantially concentric ducts for feeding fuel and primary combustion air, including a duct for axial air and a duct for rotary air disposed outside any fuel outlet opening, and a central stabilizer placed at the outlet of a central primary air delivery duct opening out through orifices of said stabilizer, which stabilizer projects radially relative to any opening of a tube placed inside said central primary air duct and inside which a fuel pipe opens out. According to the invention, said burner has at least one additional gas feed opening out into said stabilizer and disposed around said opening having any diameter lying between the tube within which the fuel pipe opens out and the outer tube defining the central primary air delivery duct.

대표청구항 ▼

[ What is claimed is:] [1.]1. A burner comprising:at least four substantially concentric ducts for feeding fuel and primary combustion air;said at least four ducts including an axial air duct, rotary air duct, a central primary air delivery duct, a peripheral duct positioned radially inside the axia

[ What is claimed is:] [1.]1. A burner comprising:at least four substantially concentric ducts for feeding fuel and primary combustion air;said at least four ducts including an axial air duct, rotary air duct, a central primary air delivery duct, a peripheral duct positioned radially inside the axial air duct and the rotary air duct for receiving fuel which has at least one fuel outlet opening;said axial air duct, said rotary air duct, and said central primary air delivery duct comprising primary air feeds for said burner;said axial air duct and said rotary air duct being disposed radially outside said at least one fuel outlet;a central stabilizer placed at an outlet of said central primary air delivery duct;said central primary air delivery duct opening out through orifices in said central stabilizer;a tube placed in said central primary air delivery duct for receiving fuel;said central stabilizer extending radially relative to an opening of said tube placed in said central primary air delivery duct;at least one additional air feed opening out into said central stabilizer, said at least one additional air feed being placed around an outer edge of said central stabilizer and forming a fourth primary air feed.