公开(公告)号：US20100124493A1

公开(公告)日：2010-05-20

申请号：US12617310

申请日：2009-11-12

申请人： Brian Kenneth WARDLE ,  Thomas Peter SOMMER ,  Beat Von ARX ,  Andre Saxer

发明人： Brian Kenneth WARDLE ,  Thomas Peter SOMMER ,  Beat Von ARX ,  Andre Saxer

IPC分类号： F01D9/02 ,  B22D23/00 ,  B22D25/00

CPC分类号： F01D9/041 ,  B22C9/043 ,  F05D2230/21 ,  F05D2230/211 ,  F05D2240/40 ,  Y02T50/671 ,  Y02T50/673

摘要： Provided is an industrial gas turbine multi vane segment, which can be cast in one piece using a wax pattern method. The multi vane segment includes a platform; at least three airfoils, extending radially from the platform, having a combined airfoil volume, a chord length and an airfoil thickness; and a shroud with a shroud volume, disposed on an end of said airfoils radially distant from the platform. The ratio of the shroud volume to the combined airfoil volume defines a first ratio, while the multi vane segment has a first ratio greater or equal to 1.4:1. This ratio enables preferential solidification, during casting, of the airfoils before the shroud.

摘要翻译： 提供了一种工业燃气轮机多叶片段，其可以使用蜡模式法一体铸造。 多叶片段包括一个平台; 从平台径向延伸的至少三个翼型件，具有组合的翼型体积，弦长和翼型件厚度; 以及具有护罩体积的护罩，其设置在径向远离平台的所述翼型件的端部上。 护罩体积与组合的翼型体积的比值定义第一比例，而多叶片段具有大于或等于1.4:1的第一比例。 该比率使得在浇铸之前优先凝固翼片前的翼型件。