FIELD: machine building.
SUBSTANCE: turbine rotor comprises cooled blades with platforms made on root feet, blades being fitted in disc grooves. Thin-wall box dampers are arranged on surface of flanges on root side. Every blade root has hole to communicate blade cooling channel with recess between roots of adjacent blades. Groove is made on thin-wall box damper on root surface side. Inlet of said groove is located opposite root hole while outlet is arranged opposite the gap between blade platforms.
EFFECT: cooling of blade platform heat-beat sections.
2 cl, 2 dwg
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