FIELD: power engineering; construction of combustion chambers. SUBSTANCE: fuel-and-air burner includes fuel injector having housing with orifices for feeding and spraying fuel and axial air swirler made in form of passage with open ends and blades inside it. Fuel-and-air burner includes additionally air flow stabilizer arranged between rear side of housing and inlet end if axial swirler. Outer contour of air flow stabilizer is located coaxially relative to axial swirler and exceeds its cross section forming slotted passage with its inlet end. EFFECT: enhanced economical efficiency of engine; extended range of stable operation of combustion chamber during operation of lean mixtures. 1 dwg
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