Burner for combustion of heavy fuel oils

A combustion chamber for combustion of heavy fuel oil, the combustion chamber enclosed by a wall extending longitudinally toward a gas outlet in a tapered manner, defining an elongated chamber having a longitudinal axis normal to said gas outlet, said chamber comprising:

• a pre-combustion region;
• a peak-combustion region;
• and a secondary-combustion region,
• wherein said pre-combustion region is operative for mixing said fuel oil with air,
• said chamber further comprising a plurality of apertures, operative for allowing air flow into said chamber, said apertures comprising:
• an upstream group of confinement apertures, circumferentially disposed around the perimeter of said wall between said pre-combustion region and said peak-combustion region;
• and
• a downstream group of confinement apertures, circumferentially disposed around the perimeter of said wall between said peak-combustion region and said secondary-combustion region,
• wherein said groups of confinement apertures allow pressurized air flow into said combustion chamber, forming an air curtain barrier between said pre-combustion region and said peak-combustion region and forming an air curtain barrier between said peak-combustion region and said secondary-combustion region during the combustion of said air-fuel mixture, such that said air-fuel mixture is temporarily detained and confined within said peak-combustion region, prolonging said combustion within said peak-combustion region.