公开(公告)号：US06511294B1

公开(公告)日：2003-01-28

申请号：US09405308

申请日：1999-09-23

申请人： Mark J. Mielke ,  James E. Rhoda ,  David E. Bulman ,  Craig P. Burns ,  Paul M. Smith ,  Daniel G. Suffoletta ,  Steven M. Ballman ,  Richard P. Zylka ,  Lawrence J. Egan

发明人： Mark J. Mielke ,  James E. Rhoda ,  David E. Bulman ,  Craig P. Burns ,  Paul M. Smith ,  Daniel G. Suffoletta ,  Steven M. Ballman ,  Richard P. Zylka ,  Lawrence J. Egan

IPC分类号： F01D522

CPC分类号： F01D5/143 ,  F01D5/02 ,  F01D5/06 ,  F04D29/321

摘要： A gas turbine engine rotor assembly including a rotor having a radially outer rim with an outer surface shaped to reduce circumferential rim stress concentration between each blade and the rim. Additionally, the shape of the outer surface directs air flow away from an interface between a blade and the rim to reduce aerodynamic performance losses between the rim and blades. In an exemplary embodiment, the outer surface of the rim has a concave shape between adjacent blades with apexes located at interfaces between the blades and the rim.

摘要翻译： 一种燃气涡轮发动机转子组件，其包括具有径向外边缘的转子，所述转子具有外表面，该外表面被成形为减小每个叶片和轮辋之间的圆周边缘应力集中。 此外，外表面的形状引导空气流离开叶片和轮辋之间的界面，以减少边缘和叶片之间的空气动力学性能损失。 在示例性实施例中，边缘的外表面在相邻刀片之间具有凹形，顶点位于刀片和边缘之间的界面处。