FIELD: engines and pumps.
SUBSTANCE: invention relates to gas turbines, particularly, to production of gas turbine engine blades. Cooled blade comprises butt and root furnished with inner cooling channel extending from butt to root end and a set of transverse channels directed towards root trailing edge. Said root is composed of central bearing rod with outer surface made up of transverse grooves and comprises lay-on plate elements connected with said central rod to make blade root configuration by their outer surface and inner cooling channel configuration by their inner surface.
EFFECT: simplified design and manufacture, higher operating performances and reliability.
2 dwg
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