FIELD: injection of fuel-and-air mixture into combustion chambers of engines with gas turbines which include fuel injector at double consumption of fuel which ensures delivery of secondary fuel cone in case engine exceeds preset mode of operation. SUBSTANCE: primary and secondary swirlers are connected Venturi tube in way of flow from aerodynamic casing mounted on the bottom of chamber. Length and shape of Venturi tube are so selected that primary fuel cone projecting from primary fuel loop does not impinge upon wall of Venturi tube. EFFECT: reduced emissions of monoxides of carbon and unburnt hydrocarbons from combustion chamber at low speed. 7 cl, 2 dwg
