Patent ID: 6880339

Claim:
A combination of a premixing chamber and a combustion chamber, with low emission of pollutants, for gas turbines running on liquid and/or gas fuel, said combustion chamber having a truncated conical end, in the proximity of which a main central flame burns, and being surrounded by a cavity for cooling air circulating in the opposite direction to the flow of combustion products, said cavity carrying combustion air to said premixing chamber in which the combustion air is mixed with liquid and/or gas fuel, said premixing chamber having at an inlet thereto apertures or ports which can be constricted according to the quantity of fuel used, and having at an outlet thereto a circumferential set of burners directed towards said combustion chamber to create a corresponding set of additional flames concentric with said main central flame, said gas fuel supply means and liquid fuel injection devices being provided in the premixing chamber, and a set of liquid fuel injectors on the truncated conical end of said combustion chamber, said injectors being directed towards the interior of the combustion chamber.