FIELD: engines and pumps.
SUBSTANCE: turbine rotating blade of jet turbine engine consists of fin, elongated leg with ribbed surface, flange separating the fin from leg and having the possibility of forming closed circuit at turbine wheel assembly, inside which cooling circuit air flows, and locking part. Jet-turbine engine is double-flow, in which the second engine flow is cooling flow. Length of blade leg is one to two and a half length of the blade fin, and cooling air passage channels are made inside blade.
EFFECT: invention allows increasing gas temperature before turbine and decreasing the weight of impeller and engine as a whole.
2 cl, 1 dwg
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