FIELD: engines.
SUBSTANCE: invention relates to gas turbine engine building, to designs of combustion chambers of gas turbine engines serving for drive of electric generator or supercharger of gas compressor unit. Gas turbine engine combustion chamber contains an external housing, a flame tube and a ring-shaped plate with injector modules installed on it and a fuel manifold connected to the plate and installed in front of the plate, the cavity of which is connected on one side with a fuel line, and on the other side – with fuel channels of injector modules containing a fuel sprayer and air supply channels with swirling. Collector is made in the form of an annular projection with a streamlined inlet edge, on the outer wall of the manifold there are four to eight fuel supply unions, in which adapters are installed, connected by means of fuel lines with unions of external collector, fixed to flange of external housing by means of movable rods and clamps, diffuser is made with a stabilizing niche channel, the inlet edge of the collector is located at distance of 0.5 of the height of the channel at the outlet of the diffuser along its centre, fuel sprayer has holes arranged perpendicular to axis of injector module, first row of holes on flame tube casing is arranged in injector module outlet part plane, the second row of holes is arranged in a staggered order in relation to the first one so that the face of the holes of the first row is the beginning of the face of the holes of the second row; on the casing of the flame tube there are installed in a staggered order the bushings having a skew directed towards the plate.
EFFECT: invention allows providing operation of the combustion chamber at deformed parameters of the flow at the inlet, uniform distribution of fuel on injector modules, reducing content of harmful pollutants (CO, NOx).
1 cl, 1 dwg
