METHOD OF OPERATION OF GAS TURBINE ENGINE AND FIRE UNIT FOR COMBUSTION OF FUEL MIXTURE Russian patent published in 2000 - IPC

FIELD: mechanical engineering; gas turbine engines. SUBSTANCE: method of operation of gas turbine engine comes to simultaneous combustion of liquid fuel and natural gas delivered in ratio G_g/(G_g+G_lf) = 0,5-0,7, where G_g is gas consumption and G_lf is liquid fuel consumption. Fire unit for combustion of liquid and gas fuels has liquid centrifugal nozzle built into cylindrical gas manifold with gas supply holes, air swirler and vortex mixer. Inner surface of vortex mixer, directly after air swirler, is made as confusing tube changing into cylindrical neck. Axes of gas supply holes in gas manifold are orientated to confusing tube generating line. Geometrical characteristic of liquid centrifugal nozzle and its position are designed to provided intersection of atomized fuel cone on initial section of flow with cylindrical neck of vortex mixer. EFFECT: reduced harmful effluents. 3 cl, 2 dwg