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Abstract

A combustion chamber for combustion of heavy fuel oil, enclosed by a wall extending longitudinally toward a gas outlet in a tapered manner, defining an elongated chamber. The chamber includes a pre-combustion region operative for mixing the fuel oil with air, a peak-combustion region, and a secondary-combustion region. An upstream group of confinement apertures, and a downstream group of confinement apertures, circumferentially disposed around the perimeter of the wall, allow pressurized air flow into the combustion chamber to form an air curtain barrier between the pre-combustion region and peak-combustion region and an air curtain barrier between the peak-combustion region and secondary-combustion region during the combustion of the air-fuel mixture, such that the air-fuel mixture is temporarily detained and confined within the peak-combustion region, prolonging the combustion within the peak-combustion region. A corresponding method for combustion of heavy fuel oil is also provided.

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First Claim