ANNULAR COMBUSTION CHAMBER OF GAS TURBINE ENGINE Russian patent published in 2024 - IPC F23R3/00 

FIELD: engines; gas turbine plants.

SUBSTANCE: invention relates to gas turbine engine building, in particular to designs of combustion chambers of ground gas turbine engines used as a drive of a supercharger of a gas compressor unit or an electric generator. Annular combustion chamber of gas turbine engine comprises fuel manifold (3), pipeline (1), flame tube (8), including outer (7) and inner ring (16), spacer plates (15), corrugated tapes (17), casings (10, 13), inner (14) and outer pockets (9), sealing rings (11, 12), ring head (19), retainers (5, 6) for suspension of flame tube (8), brackets (2), tie-rods (4), housing (32). On bosses (31) of housing (32) nozzles (30) are fixed with flanges. Outlets of nozzles (30) are installed in holes (29) of bodies of swirlers (21), which are fixed by nuts in burners of flame tube (8), containing nozzles (18). Annular head (19) is made with open visors, on the front part of annular head (19) there are perforated cooling holes (35), outlet parts of nozzles (23) are elongated, in housings of swirlers (21) protective sector screens (34) are installed, in burners (20) of nozzles of convergent shape (18), outlet parts of nozzles (23) are located in annular channels with chamfers (27), internal (9) and external (14) pockets of flame tube (8) are made of sheet metal, in nozzle bodies (26) there are jets (36) with holes.

EFFECT: invention is aimed at provision of fuel supply adjustment, improvement of manufacturability, improvement of protection against overheating and reduction of nitrogen oxide emissions.

1 cl, 2 dwg