COMBUSTION CHAMBER OF GAS TURBINE ENGINE Russian patent published in 2019 - IPC F23R3/16 F01D25/04 F23R3/42 

FIELD: engines and pumps.

SUBSTANCE: combustion chamber (10) of gas turbine engine (1) contains inner wall (22), outer wall (25) and space (28) between inner wall (22) and outer wall (25), plurality of damping cavities (30) for damping thermo-acoustic vibrations in gaseous combustion products, at least one cooling channel (50) for cooling medium moving outside internal volume (V) in thermal contact with internal wall (22). Inner wall (22) limits internal volume (V) of combustion chamber (10) through which the combustion gases move from fuel nozzle (2) to gas turbine (3) of gas turbine engine (1). Each damping cavity (30) communicates with inner volume (V) through at least one damping hole (40) in inner wall (22) and contains at least one purge port (60) communicating with cooling channel (50) for purging a portion of the cooling medium through damping cavities (30) into internal volume (V). Plurality of damping cavities (30) and cooling channel (50) are made in said space (28) and extend from said inner wall (22) to said outer wall (25).

EFFECT: invention is directed to the creation of a combustion chamber for gas turbines having a wall that is integral with the damping devices for damping thermo-acoustic vibrations in the gaseous combustion products inside the combustion chamber, and a cooling system that consumes the minimum amount of cooling medium.

15 cl, 9 dwg