公开(公告)号：US09903218B2

公开(公告)日：2018-02-27

申请号：US14827698

申请日：2015-08-17

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Matthew Troy Hafner ,  Victor John Morgan ,  Frederic Woodrow Roberts

IPC: F01D11/22 ,  F01D25/04 ,  F01D25/00 ,  F01D25/08 ,  F01D11/20 ,  F01D11/14

CPC classification number: F01D11/22 ,  F01D11/14 ,  F01D11/20 ,  F01D25/005 ,  F01D25/04 ,  F01D25/08 ,  F05D2220/32 ,  F05D2240/11 ,  F05D2260/52 ,  F05D2260/96 ,  F05D2300/17 ,  F05D2300/171 ,  F05D2300/502 ,  F05D2300/6033

Abstract: A turbine shroud assembly is disclosed including an inner shroud having a surface adjacent to a hot gas path, an outer shroud, a damper block disposed between the inner shroud and the outer shroud, a first biasing apparatus, and a second biasing apparatus. The first biasing apparatus provides a first biasing force to the inner shroud, biasing the inner shroud a first deflection distance in a direction toward the hot gas path and away from the outer shroud. The second biasing apparatus provides a second biasing force to the damper block, biasing the damper block a second deflection distance in a direction toward the hot gas path and away from the outer shroud. The second deflection distance is greater than the first deflection distance.

公开(公告)号：US09945244B2

公开(公告)日：2018-04-17

申请号：US14825636

申请日：2015-08-13

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Frederic Woodrow Roberts ,  Victor John Morgan ,  Matthew Troy Hafner

IPC: F01D11/22 ,  F01D25/04

CPC classification number: F01D11/22 ,  F05D2240/11 ,  F05D2260/50 ,  F05D2300/6033

Abstract: A turbine shroud assembly is disclosed including an inner shroud having a surface adjacent to a hot gas path, an outer shroud, and a biasing apparatus. The biasing apparatus is arranged and disposed to bias the inner shroud in a direction away from the hot gas path, loading the inner shroud to the outer shroud. In another embodiment, the biasing apparatus is a springless biasing apparatus including at least one bellows, at least one thrust piston, or a combination of at least one bellows and at least one thrust piston. A method for loading the turbine shroud assembly is disclosed including biasing the inner shroud having a surface adjacent to a hot gas path in a direction away from the hot gas path toward the outer shroud, wherein biasing the inner shroud includes a biasing force exerted by the biasing apparatus.