FIELD: modification of combustion chambers of gas turbine dealing with reduction of content of nitric oxides. SUBSTANCE: upper air swirler 122 is fitted in fuel-air passage before radial fuel distributing tubes 110. Adjustable nozzle 100 for preliminary preparation of mixture is provided with Venturi elements 124 mounted after exhaust end of fuel-air passage. EFFECT: reduced content of nitric oxides. 4 cl, 5 dwg
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