公开(公告)号：US20170044923A1

公开(公告)日：2017-02-16

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.

Abstract translation: 公开了一种涡轮机护罩组件，其包括具有与热气体路径相邻的表面的内护罩，外护罩和偏置装置。 偏压装置被布置和设置成沿着远离热气体路径的方向偏压内护罩，将内护罩装载到外护罩。 在另一个实施例中，偏置装置是一弹簧偏压装置，其包括至少一个波纹管，至少一个推力活塞或至少一个波纹管和至少一个推力活塞的组合。 公开了一种用于装载涡轮机护罩组件的方法，包括：将具有与热气体路径相邻的表面的内护罩偏压在远离热气路径的方向朝向外护罩的偏压，其中偏压内护罩包括由 偏置装置。

公开(公告)号：US20170051627A1

公开(公告)日：2017-02-23

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 ,  F01D25/00 ,  F01D25/08 ,  F01D25/04

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.

Abstract translation: 公开了一种涡轮机护罩组件，其包括具有与热气体路径相邻的表面的内护罩，外护罩，设置在内护罩和外护罩之间的阻尼块，第一偏压装置和第二偏压装置。 第一偏置装置向内护罩提供第一偏置力，从而朝向热气体路径并远离外护罩的方向偏压内护罩的第一偏转距离。 第二偏压装置向阻尼器块提供第二偏压力，使阻尼器块沿朝向热气体路径并远离外护罩的方向偏置第二偏转距离。 第二偏转距离大于第一偏转距离。