TURBINE VANE Russian patent published in 1997 - IPC

FIELD: gas turbine plants. SUBSTANCE: turbine vane has base with passages of the open cooling loop and blade with longitudinal passages of the closed cooling loop arranged as a row in series from the inlet edge of the blade to the outlet edge and connected with two manifolds. One of the manifolds is in the top portion of the blade. The other manifold is mounted in the base of the vane. In the region of the vane the row of the longitudinal passages of the closed loop is interposed between the two rows of the longitudinal passages of the open loop. The maximum distance between the passages of the open loop in the cross-section of the blade is less than the maximum distance between the passages of the closed loop. The rows of the passages of the open loop are composed of passages that are interconnected at the top of the blade. EFFECT: enhanced reliability. 7 cl, 4 dwg