Turbine cooling blade

Abstract

Abstract PURPOSE:To enhance cooling performance by providing the first passage going from a front edge portion to the middle portion of a blade and the second passage in a rear edge portion in the blade and forming fins in the first passage. CONSTITUTION:In a blade 1, the first passage 9 which goes from a front edge portion to the middle portion of the blade while meandering in the vertical direction of the blade, and the second passage 10 which passes a rear edge portion are provided. Fins 13 extending in the vertical direction are formed in the first passage 9 so as to connect the first passage 9 to a passage 18 which goes in the rear edge direction in the top edge of the blade and makes cooled fluid flow out from the rear edge to the outside. With this arrangement, cooled fluid can be supplied to the rear edge portion and as well heating area can be increased by the action of the fins so as to enhance cooling performance without increasing the flow of cooled fluid.

Inventors

• 👤 Katsuyasu Ito

Bibliographic Details