COOLING STRUCTURE IMPROVED TURBINE

摘要

PROBLEM TO BE SOLVED: To provide a turbine having improved cooling performance of turbine blades by changing a shape or arrangement of a turbulent acceleration body within a cooling passage. SOLUTION: Cooling passages 3 are formed on the inside of turbine blades 1, 7 in a gas turbine engine, intake passages 4 taking in cooling air (a) into the cooling passages 3 are formed on the outside in the radius direction or the inside in the radius direction of the turbine blades 1, 7, and a plurality of turbulent acceleration bodies 2 for making the flow of cooling air (a) turbulent are installed over from the downstream part of the intake passage 4 to the upstream part of the cooling passage 3.