FIELD: construction of main combustion chambers of gas-turbine engines. SUBSTANCE: fuel injector includes spray bar with fuel supply orifices and nozzle with surface for creating film of liquid with spraying edge and inner and outer air swirlers made in the form of axial concentric passages with open ends and with blades inside them. Surface of nozzle with spraying edge and inner surface of outer air swirler are made alternately in circumferential direction at different angles relative to axis of nozzle and are formed by rotation of the envelope of set of geodetic lines around axis of nozzle. Geodetic lines intersect axis of nozzle over spraying edges at an angle equal to that of twist of fuel film. EFFECT: enhanced efficiency. 4 dwg
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