Method for producing an inlet lining
a technology of inlet lining and lining, which is applied in the direction of liquid/solution decomposition chemical coating, solid-state diffusion coating, coating, etc., can solve the problems of high absolute temperature and temperature gradient, special problem of difficult maintenance of a gap between rotating rotor blades and the stationary housing of high-pressure compressors
Inactive Publication Date: 2009-08-13
MTU AERO ENGINES GMBH
View PDF7 Cites 7 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
"The present invention provides a novel method for producing an inlet lining for turbine engines. The method involves applying a mixture of a solvent, metallic particles, and a filler to a stator-sided component, drying it to form a porous green body, and then subjecting it to diffusion heat treatment to form the desired intermetallic phases. The technical effect of this method is to provide a more efficient and effective process for producing high-quality inlet linings for turbine engines."
Problems solved by technology
In the case of turbine engines, maintaining a minimum gap between the rotating rotor blades and the stationary housing of a high pressure compressor poses a special problem.
In particular, high pressure compressors experience the highest absolute temperatures and temperature gradients, a feature that renders the maintenance of a gap of the rotating rotor blades in relation to the stationary housing difficult.
Since the friction contact causes the tips of the rotor blades to be abraded at the same material, an undesired increase in the gap may occur over the entire periphery of the housing and the rotor.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreExamples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0013]According to the inventive method for producing an inlet lining, the intermetallic phase of this inlet lining is provided by inwardly diffusing the aluminum and / or chromium into the inlet lining of the component by means of diffusion heat treatment. Therefore, during the production of the mixture the present invention, described here, does not use an intermetallic material, but rather the intermetallic phase of the inlet lining is provided by way of a diffusion heat treatment.
[0014]Furthermore, an advantageous further development of the invention provides that in step b) an additional substance, which is insoluble in the solvent, is introduced into the mixture. In this case the additional substance is decomposed and / or burned off during the diffusion heat treatment in order to create a macro-porosity in the inlet lining that forms. Furthermore, in step b) ceramic particles, which are insoluble in the solvent, may be introduced into the mixture.
[0015]Preferred further developme...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| temperature | aaaaa | aaaaa |
| metallic | aaaaa | aaaaa |
| soluble | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to a method for producing an inlet lining on a stator-sided component of a turbine engine, in particular, a gas turbine, with at least the following steps: a) providing a stator-sided component of a turbine engine, this component being provided with an inlet lining; b) providing a mixture consisting of a solvent; particles of a metallic parent material for the inlet lining, said particles being insoluble in the solvent; and a filler, this filler having at least one constituent that is soluble in the solvent; c) applying the mixture to the stator-sided component; d) drying the stator-sided component and the mixture, applied to the component, while at least partially expelling the solvent in order to provide a porous green body in the area of the applied and dried mixture; e) diffusion heat treating the component for inwardly diffusing aluminum and / or chromium and for forming the intermetallic phases in the resulting inlet lining.
Description
RELATED APPLICATIONS[0001]This application is a continuation of International Application No. PCT / DE2006 / 001973 (International Publication Number WO / 2007 / 056979), having an International filing date of Nov. 10, 2006 entitled “Verfahren zum Herstellen eines Einlaufbelags” (“Method for Producing an Inlet Lining”). International Application No. PCT / DE / 2006 / 001973 claimed priority benefits, in turn, from German Patent Application No. 10 2005 055 200.5, filed Nov. 19, 2005. International Application No. PCT / DE / 2006 / 001973 is hereby incorporated by reference herein in its entirety.FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT[0002][Not Applicable][MICROFICHE / COPYRIGHT REFERENCE][0003][Not Applicable]BACKGROUND OF THE INVENTION[0004]The invention relates to a method for producing an inlet lining on a stator-sided component of a turbine engine.[0005]Turbine engines, such as gas turbines, usually comprise a plurality of rotating rotor blades and a plurality of stationary guide vanes. In this c...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(United States)
IPC IPC(8): B22F3/11B22F7/04
CPCC23C10/02C23C10/18C23C10/26C23C10/30C23C30/00C23C18/1204C23C18/127C23C18/1295C23C10/52
Inventor WERNER, ANDRE
Owner MTU AERO ENGINES GMBH