FIELD: mechanical engineering; turbines. SUBSTANCE: blade of turbine guide assembly with cooling systems has hollow blade fitted between hollow outer and inner platforms. Cooling system has jacket with great number of through holes held at definite distance from peripheral wall of blade, and bottom wall with outlet hole arranged opposite to inlet hole made in wall of inner platform. Outlet hole in jacket bottom wall and inlet hole in inner platform are placed in communication by device providing adequate sealing and made in form of two cones nested one into the other. Holes on vertices of cones are located inside jacket. Enclosed cone rigidly coupled with inner platform defines inlet hole. Enclosing cone rigidly coupled with jacket defines outlet hole. EFFECT: increased degree of blade cooling. 8 dwg
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