| 摘要 |
PURPOSE:To improve turbine efficiency by mounting turbulence promotors between an insert in a blade and an inner coat of the blade. CONSTITUTION:An insert 5 is provided in a blade and a spacer 7 is provided between the insert 5 and the inner coat of the blade. Turbulance promotors 8 are mounted to the circumference of the spacer 7 and the promotor 8 and brought in contact with the inner coat of the blade by contact members 9 in the insert 5. Thus, heat transfer amount from the inner coat of the blade to a cooling passage is increased around twice as much and cooling fluid amount is reduced, then turbine efficiency can be improved. |
