公开(公告)号：US20170211407A1

公开(公告)日：2017-07-27

申请号：US15018373

申请日：2016-02-08

Applicant: General Electric Company

Inventor： Rohit Chouhan ,  Manjunath Chengappa

IPC: F01D11/12 ,  F01D9/04 ,  F01D5/14 ,  F02C3/04

CPC classification number: F01D11/122 ,  F01D5/14 ,  F01D9/041 ,  F02C3/04 ,  F05D2220/32 ,  F05D2240/126 ,  F05D2240/129

Abstract: A turbine shroud for an axial turbine, the shroud including: an annular array of arch shaped shroud segments each configured to be mounted to an inner surface of a turbine casing, the segment having an arched seal surface aligned with tips of a last row of turbine buckets in the turbine, and vanes positioned on an inner surface of each of the shroud segments and downstream in a direction of gas flow through the last row, the vanes extending inward from the inner surface towards an axis of the turbine.