FUEL COMBUSTION INJECTOR OF A GAS-TURBINE ENGINE, FUEL INJECTION SYSTEM, TURBO-REACTIVE ENGINE COMBUSTION CAMERA AND TURBO-REACTIVE ENGINE

摘要

1. A fuel nozzle of a combustion chamber of a gas turbine engine, comprising a nozzle bracket (22) with two coaxial channels (28, 29) holding and supplying a spray head (14) with two jets, containing a central channel (28) and a peripheral channel (29), respectively having an annular cross section and encompassing said central channel, said fuel nozzle bracket being mounted in a stream of relatively hot compressed air, characterized in that the peripheral channel (29) can be connected to the primary a fuel circuit (32) having a continuous fuel flow rate, while said central channel (28) can be connected to a secondary fuel circuit (33), which generally has a variable fuel flow rate, wherein said spray head (14) contains such an arrangement the above-mentioned channels, which allows injection of fuel circulating in the said central channel, in the form of an expanding jet located outside with respect to the stream of fuel emanating from the said peripheral channel. 2. A fuel injector according to claim 1, characterized in that the atomization head (14) comprises a distribution device (35) connected to the ends of two channels (28, 29) and placed inside the atomization tip (39) extending said fuel injector bracket, said channeling is carried out mainly in this switchgear. 3. A fuel injector according to claim 2, characterized in that the central channel (28) continues with a blind hole (39) made in said switchgear, while the holes (41