Variable stator vane bushings and washers
AssigneeGeneral Electric Company
InventorRobert W. Bruce
Life of this patent
Estimating the term…
Abstract
A variable stator vane assembly for use in a compressor section of a turbine engine having a plurality of movable metallic stator vanes and a method for making a variable stator vane assembly. The variable stator vane assembly includes a metallic stator casing supporting the vanes and a bushing system positioned between the stator vanes and the stator casings. The bushing system includes a bushing fabricated from a material selected from the group consisting of metal, ceramic or combinations thereof. The variable stator vane further including a titanium nitride wear coating disposed on a surface of the vanes in contact with the bushing system.
Claims24
A variable stator vane assembly for use in a compressor section of a turbine engine, comprising:
- a plurality of movable metallic stator vanes;
- a metallic stator casing supporting the vanes;
- a bushing system positioned between the stator vanes and the stator casings, the bushing system comprising a bushing, the bushing comprising a material selected from the group consisting of metal, ceramic or combinations thereof;
- and
- a wear coating disposed on a surface of the vanes in contact with the bushing system, the wear coating comprising titanium nitride.
A variable stator vane assembly for use in a compressor section of a turbine engine, comprising:
- a plurality of movable metallic stator vanes, the vane comprising a wear resistant coating;
- a metallic stator casing supporting the vanes;
- a bushing system positioned between the stator vanes and the stator casings, the bushing system comprising a bushing, the bushing comprising a material selected from the group consisting of metal, ceramic or combinations thereof;
- a wear coating disposed on a surface of the vanes in contact with the bushing system, the wear coating comprising titanium nitride;
- and
- an antifriction coating is disposed on one or more of the vane and the bushing systems.
A method for coating a bushing of a variable stator vane assembly comprising:
- providing a stator vane having a trunnion portion and an airfoil portion;
- and
- applying a wear coating comprising titanium nitride on a surface of the vane to provide a coated trunnion portion and an airfoil portion having an increased resistance to wear and erosion.
Dependencies are inferred from the claim text.