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Synthetic high-temp assembly and manufacturing method therefor

A technology of components and assemblies, applied in the field of turbine assembly components, can solve the problems of intensified design of anti-oxidation turbines

Inactive Publication Date: 2003-10-01
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Problems related to material melting point and oxidation resistance are exacerbated by prior a

Method used

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  • Synthetic high-temp assembly and manufacturing method therefor
  • Synthetic high-temp assembly and manufacturing method therefor
  • Synthetic high-temp assembly and manufacturing method therefor

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Embodiment Construction

[0042] In the following description, it is understood that terms such as "top", "bottom", "outwardly", "inwardly" and the like are words of convenience and not intended to be limiting.

[0043] Noble metals such as Rh, Pd and Pt and their alloys have a high melting temperature, excellent oxidation resistance, high temperature strength and good adhesion properties for thermal barrier coatings (hereinafter also referred to as TBC). It is impractical to manufacture entire turbine components such as airfoils since they are very dense and costly. The present invention overcomes these and other problems by providing a turbine component of composite construction. The composite structure includes at least one column providing mechanical support, a spacer structure connected to the column, and an outer shell comprising at least one noble metal or alloy thereof. The housing is in contact with the spacing structure and conformally surrounds the post.

[0044] Reference is made to the d...

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Abstract

A component for use in a hot gas path of a gas turbine assembly, a metal housing for such a component, and a method of manufacturing such a component are provided, the component including a post providing mechanical support for the component and Comprising a cooling fluid delivery system, a top end and a bottom end; a spacer structure connected to the column, which includes a plurality of spacer elements spaced apart from each other, the spacer elements having a first end adjacent to the column and connected to the first end an opposite second end; a shell conformally surrounding the post and a spacer structure comprising a top end and a bottom end, wherein the spacer structure separates the post and the shell, a plurality of spacer elements arranged such that the second ends of the spacer elements are adjacent to the shell an inner surface to form a plurality of plenums between the column and the housing, the plenums being in fluid communication with the cooling fluid delivery system, the housing comprising at least one metal selected from the group consisting of Rh, Pd and Pt metals; And the bottom connecting the bottom end of the post and the bottom end of the casing.

Description

technical field [0001] The invention relates to a turbine assembly such as an airfoil. In particular, the invention relates to a turbine assembly having a composite structure. More particularly, the present invention relates to components, such as airfoils, for turbine components having an oxidation resistant composite structure. Background technique [0002] Turbine components such as aviation turbines, land turbines, marine turbines, and the like often include components formed of materials also known as superalloys. Superalloys exhibit desirable chemical and physical properties at the high temperatures, stresses, and pressures often encountered during turbine operation. Nickel (Ni), iron (Fe) and cobalt (Co) based superalloys are particularly desirable in this application. For example, turbine components such as airfoils in modern jet engines can reach temperatures as high as 1150°C, which is about 85% of the melting temperature of most Ni-based superalloys. [0003] ...

Claims

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Application Information

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IPC IPC(8): F01D5/14F01D5/18F01D5/28F02C7/00
CPCF01D5/14F01D5/18F01D5/28F05D2300/143Y02T50/60
Inventor J·-C·赵L·姜M·R·杰克逊R·达罗利尔R·E·沙夫里克
Owner GENERAL ELECTRIC CO