Back to results
US 8,895,134 B2Granted
Apparatus and method for coating a compressor housing
AssigneeMTU Aero Engines AG
InventorsManfred Daeubler, Wilfried Smarsly
Life of this patent
Estimating the term…
Abstract
A running-in coating for a compressor housing is disclosed. The running-in coating has at least two layers where a first layer is dimensionally stable and at least one additional layer has run-in capability.
Claims10
A running-in coating of a gas turbine engine, comprising:
- a first dimensionally stable layer and a second running-in layer applied to a housing of a compressor of the gas turbine engine;
- wherein the first dimensionally stable layer has a profile and wherein the profile extends above a surface of the first dimensionally stable layer;
- wherein the second running-in layer completely surrounds the first dimensionally stable layer and the profile such that a portion of the second running-in layer that surrounds the profile also extends above the surface of the first dimensionally stable layer;
- wherein the profile forms a groove in the running-in coating;
- and wherein a depth of the groove is larger than a width of the groove.
2 more elements
A compressor for a gas turbine engine, comprising:
- a housing;
- and
- a running-in coating applied to the housing;
- wherein the running-in coating includes a first dimensionally stable layer and a second running-in layer;
- wherein the first dimensionally stable layer has a profile and wherein the profile extends above a surface of the first dimensionally stable layer;
- wherein the second running-in layer completely surrounds the first dimensionally stable layer and the profile such that a portion of the second running-in layer that surrounds the profile also extends above the surface of the first dimensionally stable layer;
- wherein the profile forms a groove in the running-in coating;
- and wherein a depth of the groove is larger than a width of the groove.
5 more elements
A method of coating a housing of a compressor of a gas turbine engine, comprising the steps of:
- applying a first dimensionally stable layer and a second running-in layer to the housing, wherein the first dimensionally stable layer has a profile,
- wherein the profile extends above a surface of the first dimensionally stable layer, and wherein the second running-in layer completely surrounds the first dimensionally stable layer and the profile such that a portion of the second running-in layer that surrounds the profile also extends above the surface of the first dimensionally stable layer;
- wherein the profile forms a groove in the running-in coating;
- and wherein a depth of the groove is larger than a width of the groove.
1 more element
Dependencies are inferred from the claim text.