FIELD: power industry.
SUBSTANCE: fuel injector of the gas turbine engine comprises a central body disposed on a longitudinal axis and a premixing chamber radially outwardly with respect to the central body and forming an annular channel between them. The annular passage extends from a suction nozzle connected to the compressor with the possibility of flow transmission to an outlet nozzle connected to the combustion chamber with the possibility of flow transfer. The premixing chamber comprises the first portion located at the suction nozzle and consisting of stainless steel and the second portion disposed on the outlet nozzle consisting of a nickel-base heat-resistant alloy and connected to the first section by means of laser building-up. In this case, the inclined wall of the first portion forms an acute angle with the longitudinal axis. A method of manufacturing a premixing chamber of a gas turbine fuel injector is also provided.
EFFECT: invention makes it possible to minimize the adverse effects of the laser building-up process.
10 cl, 7 dwg
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