公开(公告)号：US20140099194A1

公开(公告)日：2014-04-10

申请号：US13645092

申请日：2012-10-04

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Bill Damon JOHNSTON ,  Daniel Anthony NOWAK ,  Srikanth Chandrudu KOTTILINGAM ,  Melbourne J. MYERS ,  Joe Timothy NOWAK

IPC: F02C7/00 ,  B23P15/00

CPC classification number: F01D9/02 ,  F01D11/08 ,  F05D2230/232 ,  F05D2240/11 ,  F05D2300/171 ,  F05D2300/175 ,  F05D2300/176 ,  Y10T29/49236

Abstract: A bimetallic ring for use as a turbine shroud in a gas turbine engine. The bimetallic ring forms a sealing surface as a hot gas flow path boundary in the engine. The ring is comprised of two materials. The first material, a wrought, oxidation resistant metal alloy comprises a first portion, which is the hot gas flow path sealing surface. The second material, a low cost low alloy steel, comprises a second portion that may be at least a pair of supporting side plates. A dissimilar weld joint joins the sealing surface to the second portion, the at least pair of supporting side plates.

Abstract translation: 用作燃气涡轮发动机中的涡轮机罩的双金属环。 双金属环在发动机中形成作为热气流路边界的密封面。 该环由两种材料组成。 第一种材料，锻造的抗氧化金属合金包括作为热气体流路密封表面的第一部分。 第二种材料，低成本低合金钢，包括可以是至少一对支撑侧板的第二部分。 不同的焊接接头将密封表面连接到第二部分，至少一对支撑侧板。