FIELD: engines and pumps.
SUBSTANCE: proposed gas turbine plant comprises compressor, combustion chamber, at least one turbine with nozzle and operating vanes, shaft jointing compressor with turbine, cooling gas bleed-off and feed system. Nozzle and operating vanes have cooling channels and orifices to let gas escape into turbine vane chamber. One part of said gas release orifices arranged on the vane concave surface represent transfer inserts with sets of orifices. Total area of insert orifices varies from 30% to 60% of the insert area. Width of aforesaid orifice is 6 to 8 times smaller than the distance between adjacent inserts.
EFFECT: reduced fuel consumption, higher power output.
6 cl, 5 dwg
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