FIELD: machine building.
SUBSTANCE: invention relates to an annular combustion chamber containing two circular walls, an inner and an outer ones, interconnected upstream with an annular wall bottoms of a chamber, through which spray systems pass containing each at least one spiral intended to deliver the air flow rotating downstream from the fuel injector, and a fixed cone in the form of a truncated cone downstream from the spiral formed with an annular row of air injection holes. Outer circular wall comprises an annular row of primary diluting holes. Holes of the fixed cones are distributed and their dimensions are calculated so, that jets of the fuel-air mixture have local expansion overlapping in the circumferential direction the adjacent fuel jet upstream from the primary diluting holes.
EFFECT: invention is aimed at improvement of characteristics of the combustion chamber.
10 cl, 12 dwg
