TUBULAR-ANNULAR COMBUSTION CHAMBER OF GAS TURBINE Russian patent published in 1998 - IPC

FIELD: power plants. SUBSTANCE: combustion chamber has fire tubes, each of them being coupled to fuel injector and gas collector coupled in its turn to external and internal bodies. Fire tube wall is made corrugated at the output and is coupled to face wall positioned on output face of fire tube. Face wall has flange embracing the projections of corrugated wall. The latter forms longitudinal channels over perimeter alternating in circular direction. Input of all channels is located up-stream of face wall. Output of some channels coincides with output face of fire tube, and output of other channels is directed opposite the flow. Face wall is coupled to gas collector for movement along fire tube axis. Longitudinal channels in every fire tube are made with twist angle relative to fire tube axis. EFFECT: stable burning with reduced concentration of nitrogen oxides in turbine waste gases. 2 cl, 4 dwg