초록 ▼

New combustors, and methods of operating same, which produce lower emissions, particularly lower emissions of nitrogen oxides and CO, are provided. A first stream of air is introduced, either radially or axially, to a first combustion region of the combustor. A second stream of air is introduced tan

New combustors, and methods of operating same, which produce lower emissions, particularly lower emissions of nitrogen oxides and CO, are provided. A first stream of air is introduced, either radially or axially, to a first combustion region of the combustor. A second stream of air is introduced tangentially into said first combustion region. A third stream of air is introduced tangentially into a second combustion region of the combustor. The amount of said first stream of air admitted to the first combustion region is varied in accordance with the fuel flow to said first combustion region.

대표청구항 ▼

A combustor, comprising, in combination: a flame tube; a dome member disposed at the upstream end of said flame tube; a fuel inlet means disposed in said dome member for introducing a stream of fuel into an upstream first combustion section of said flame tube; a variable first air inlet means provid

A combustor, comprising, in combination: a flame tube; a dome member disposed at the upstream end of said flame tube; a fuel inlet means disposed in said dome member for introducing a stream of fuel into an upstream first combustion section of said flame tube; a variable first air inlet means provided in said dome member for admitting a variable volume of a first stream of air through said dome member, around said fuel inlet means, and into said first combustion section of said flame tube; a second air inlet means disposed in the wall of said flame tube for admitting a second stream of air into said first combustion section in a circumferential direction and tangential to the wall thereof; a third air inlet means disposed in the wall of said flame tube downstream from said second air inlet means for admitting a third stream of air into a second combustion section in a circumferential dIrection and tangential to the wall thereof, said second combustion section being located in said flame tube downstream from and in communication with said first combustion section; and means for controlling the volume of said first stream of air in accordance with the rate of introduction of said fuel.