Title: Adaptive cover for cooling pathway by additive manufacture

Abstract

A hot gas path component of an industrial machine includes an adaptive cover for a cooling pathway. The component and adaptive cover are made by additive manufacturing. The component includes an outer surface exposed to a working fluid having a high temperature; an internal cooling circuit; and a cooling pathway in communication with the internal cooling circuit and extending towards the outer surface. The adaptive cover is positioned in the cooling pathway at the outer surface. The adaptive cover may include a heat transfer enhancing surface at the outer surface causing the adaptive cover to absorb heat faster than the outer surface.

Inventors:

Lacy, Benjamin Paul; Morgan, Victor John

Issue Date:

2021-06-22

Research Org.:

General Electric Co., Schenectady, NY (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1824093

Patent Number(s):

11041389

Application Number:

15/609,576

Assignee:

General Electric Technology GmbH (Schenectady, NY)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER

B - PERFORMING OPERATIONS B33 - ADDITIVE MANUFACTURING TECHNOLOGY B33Y - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING

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B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER

B22F2003/247 - {Removing material
B22F2998/10 - Processes characterised by the sequence of their steps
B22F2999/00 - Aspects linked to processes or compositions used in powder metallurgy
B22F5/04 - of turbine blades
B22F5/10 - of articles with cavities or holes, not otherwise provided for in the preceding subgroups
B22F7/062 - {involving the connection or repairing of preformed parts}
B22F7/08 - with one or more parts not made from powder {

B - PERFORMING OPERATIONS B33 - ADDITIVE MANUFACTURING TECHNOLOGY B33Y - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING

B33Y10/00 - Processes of additive manufacturing
B33Y80/00 - Products made by additive manufacturing

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES

F01D25/12 - Cooling
F01D5/147 - {Construction, i.e. structural features, e.g. of weight-saving hollow blades
F01D5/186 - {Film cooling
F01D5/187 - {Convection cooling}
F01D9/023 - {Transition ducts between combustor cans and first stage of the turbine in gas-turbine engines
F01D9/041 - {using blades
F01D9/065 - {Fluid supply or removal conduits traversing the working fluid flow, e.g. for lubrication-, cooling-, or sealing fluids

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02K - JET-PROPULSION PLANTS

F02K1/822 - {Heat insulating structures or liners, cooling arrangements, e.g. post combustion liners

F - MECHANICAL ENGINEERING F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04 F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS

F05D2230/30 - with deposition of material
F05D2230/31 - Layer deposition
F05D2240/11 - Shroud seal segments
F05D2240/81 - Cooled platforms
F05D2260/202 - by film cooling
F05D2270/3032 - excessive temperatures, e.g. caused by overheating

F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23R - GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS

F23R2900/00018 - Manufacturing combustion chamber liners or subparts
F23R3/002 - {Wall structures
F23R3/06 - Arrangement of apertures along the flame tube

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

Y02P10/25 - by increasing the energy efficiency of the process

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DOE Contract Number:  

FE0023965

Resource Type:

Patent

Resource Relation:

Patent File Date: 05/31/2017

Country of Publication:

United States

Language:

English