LAYOUT FOR COOLING TURBINE BLADE, ENCLOSED TURBINE BLADE, TURBINE ENGINE HAVING THE LAYOUT AND THE TURBINE BLADE, AND AIRCRAFT ENGINE

摘要

PPROBLEM TO BE SOLVED: To provide a device for cooling the stationary or movable blade of a turbine in a turbine engine by jetting cooling air. PSOLUTION: In this layout for cooling the blade 10, the blade 10 comprises a hollow 12 surrounded by an inner wall 14 having cooling fins 24 separated from each other by a pitch p and having a thickness e. The blade 10 has, in the hollow 12, a jacket 26 passing through discharge holes 28 with a diameter d. When a jacket 26 is at a proper position in the hollow part 12 of the blade 10 and the operation point of the turbine engine is critical, the discharge holes 28 of the jacket 26 face positions on the inner wall 14 of the blade 10 between the cooling fins 24. PCOPYRIGHT: (C)2007,JPO&INPIT