FIELD: engines and pumps.
SUBSTANCE: nozzle vane of gas turbine with cyclone-swirler cooling system comprises swirling devices to cool cylindrical channels and leading edge perforation. Vane body has central hollow chamber to additionally feed coolant, via swirling devices arranged over height of cooling cylindrical channels at the distance equal to 4th and 8th gages referred to cooling channel diametre. Swirling matrix is arranged in vane trailing edge.
EFFECT: higher efficiency of cooling, longer life of vane.
4 cl, 8 dwg
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