FIELD: machine building.
SUBSTANCE: present invention relates to a turbine blade comprising a shank, blade (12), which comprises an inlet edge, outlet edge (17), a back and a trough, and also comprises cooling outlet holes (26, 27) on outlet edge (17), wherein said feather also comprises first (T1) and second (T2) serpentine circuits, wherein each serpentine circuit (T1, T2) comprises several channels (CA1, CM1, CT1, CA2, CM2, CV2, CT2) extending in direction (EV) of span and connected to each other by curved sections, wherein each serpentine circuit (T1, T2) is supplied with air through its channel (CA1, CA2), located closest to inlet edge (16), wherein outlets (26, 27) are supplied with air from the first and second serpentine circuits (T1, T2).
EFFECT: improved cooling.
11 cl, 3 dwg
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