公开(公告)号：US20100303604A1

公开(公告)日：2010-12-02

申请号：US12472590

申请日：2009-05-27

申请人： Joseph A. Tecza ,  Stephen S. Rashid

发明人： Joseph A. Tecza ,  Stephen S. Rashid

IPC分类号： F01D9/04

CPC分类号： F02K1/825 ,  F01D5/143 ,  F02C7/045

摘要： To reduce noise and thereby increase turbine efficiency, the end walls and airfoils of a turbine are designed to reduce or eliminate radial pressure gradients on rotor blades and their incipient secondary flow vortices which may noisily excite downstream blade and vane rows. Instead of generating inefficient noise, the fluid energy may be properly directed into the shaft as efficient work.

摘要翻译： 为了降低噪音并由此提高涡轮机效率，涡轮机的端壁和翼型被设计成减小或消除转子叶片上的径向压力梯度及其初期的二次流涡流，这可能引起下游叶片和叶片排。 代替产生低效噪声，流体能量可以作为有效的工作被适当地引导到轴中。