公开(公告)号：US06851924B2

公开(公告)日：2005-02-08

申请号：US10259869

申请日：2002-09-27

申请人： Stefan Mazzola ,  Keith L. Nickols ,  Friedrich Rogers ,  W. David Day ,  Kelly M. Flannery

发明人： Stefan Mazzola ,  Keith L. Nickols ,  Friedrich Rogers ,  W. David Day ,  Kelly M. Flannery

IPC分类号： F01D5/14 ,  F01D5/18 ,  F01D9/06

CPC分类号： F01D5/187 ,  F01D5/145 ,  F05D2260/202

摘要： A crack-resistant vane segment assembly member for an industrial turbine engine is disclosed. The vane segment includes at least one internally-cooled body portion and inner and outer shroud portions. The body portions include end regions characterized by blending and transition zones that ensure heat is transferred at a non-crack-inducing rate from the shroud portions to the body portions. The vane segment assembly also includes a cooling arrangement that reduces the impact of thermal gradient-induced stresses acting at the interface between the body portions and shroud portions. The cooling arrangement cooperates with the transition and blending zones to produce synergistically-enhanced crack resistance properties.

摘要翻译： 公开了一种用于工业涡轮发动机的抗裂性叶片段组件。 叶片段包括至少一个内部冷却主体部分和内部和外部护罩部分。 主体部分包括以混合和过渡区为特征的端部区域，其确保热量以非裂纹诱导速率从护罩部分转移到主体部分。 叶片段组件还包括冷却装置，其减少作用在主体部分和护罩部分之间的界面处的热梯度引起的应力的冲击。 冷却装置与过渡和混合区配合以产生协同增强的抗裂性。