| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent developing of cracking of a front of a squealer, and to avoid expensive mending of welding. SOLUTION: A turbine blade squealer front 38 which contains a blade-like front cap 22 defining a front hollow space 40 opened to a radially outward direction has a squealer front wall 39 extended from a periphery of the blade- like front cap 22 in a radially outward direction along the periphery. The front wall has an inner side surface 66 faced to the inside of the hollow space 40 and an outer side surface 60 which is not faced to the hollow space 40. The front cap 22 has an outer side front surface on the bottom of the hollow space 40. Heat insulative coatings 48, 49 are applied to the inner and outer side surfaces 60, 66 of the squealer front wall 39 and the outer side front surface of the front cap 22. In one preferred embodiment, a cooling hole 76 penetrates the front cap 2 for flowing cooling air therethrough.</p> |
