GAS TURBINE ENGINE Russian patent published in 2000 - IPC

FIELD: mechanical engineering; engines. SUBSTANCE: gas-turbine engine has turbine with first nozzle assembly and combustion chamber with double-wall flame tube. According to invention, space between flame tube double walls is connected at inlet with air space of combustion chamber and at outlet, with outlet slots of nozzle blades of first nozzle assembly. Moreover, one of walls pointed to gas space of flame tube is made up of segments with projections without radial clearances, and other wall pointed to air space of flame tube is perforated. Invention is aimed at decreasing discharge of harmful substances, such as CO and NO, at operation of engine owing to the fact that there is no cold air layer along inner wall of flame tube. EFFECT: reduced temperature in burning zone of combustion chamber. 2 cl, 4 dwg