FIELD: combustion chambers of gas turbine engines.
SUBSTANCE: annular combustion chamber includes housing, fire tube having air swirlers arranged on front wall and in lateral walls openings for air supply; at least one igniting device. Fuel sprayers are arranged coaxially relative to air swirlers and they are in the form of air swirler with tangential ducts and (or) in the form of outlet nozzle. At least one fuel sprayer is arranged in zone of igniting device and it has total surface area of its tangential ducts and (or) nozzle exceeding by 2 -30% surface area of all other sprayers. Invention provides generation in zone of igniting device reconcentrated air-fuel mixture and therefore enlarged starting range, especially in condition of negative temperature of environment air and in high-mountain air fields.
EFFECT: enlarged starting range.
3 cl, 3 dwg
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