| 摘要 |
FIELD: machine building.SUBSTANCE: turbine blade extending along the longitudinal axis (A) comprises a fastening section fitted by a base surface, a platform coupled as a solid unit with the fastening section, a main elongated body, a cooling circuit and an adjustment plate. The main elongated body extends from the platform on the opposite side in respect to the fastening section and comprises a tail edge. The cooling circuit includes the first cooling line for cooling of the tail edge and is fitted by the first inlet hole provided on the base surface of the blade's fastening section. The adjustment plate is connected with the base surface at the first inlet hole and comprises the first and second sections able of being coupled with each other and having such shape as to jointly form a hole with an alternating cross section.EFFECT: invention is aimed at the reduction of the cost price of a blade and at the adjustment of the cooling air flow rate.4 cl, 4 dwg |
