Inter-turbine ducts
AssigneeHoneywell International Inc.
InventorsHarry Lester Kington, James Neumann
Life of this patent
Estimating the term…
Abstract
An inter-turbine duct includes a first annular wall with a ceramic composite material and including a first plurality of layers and a second plurality of layers, the first plurality of layers including a slot extending therethrough; and a first vane with a material of a metal alloy or a ceramic material. The first vane has a first end and a flange extending through the slot with the flange extending away from the first end and being retained between the first plurality of layers and the second plurality of layers of the first annular wall.
Claims18
An inter-turbine duct, comprising:
- a first annular wall including a first plurality of layers and a second plurality of layers, each of the first plurality of layers and the second plurality of layers composed of a ceramic composite material, the first plurality of layers defining a slot that extends through the first plurality of layers;
- a second annular wall including a plurality of layers and an opening defined through the plurality of layers;
- and
- a first vane comprising a material selected from a group consisting of a metal alloy and a ceramic material, the first vane having a first end, a second end opposite the first end, a post that extends outwardly from the second end of the first vane and a flange that extends outwardly from the first end of the first vane, the flange extending through the slot defined in the first plurality of layers, the flange is retained between the first plurality of layers and the second plurality of layers of the first annular wall and the post of the second end of the first vane extends through the opening of the second annular wall such that a slip joint is formed between the post and the opening of the second annular wall.
An inter-turbine duct comprising:
- a first annular wall including a first plurality of layers and a second plurality of layers each comprising a first ceramic material, the first plurality of layers including a plurality of slots defined through the first plurality of layers;
- a second annular wall comprising a plurality of layers composed of a second ceramic material and including a plurality of openings defined through the plurality of layers and extending between an inner surface and an outer surface of the second annular wall;
- and
- a plurality of vanes extending between the first annular wall and the second annular wall, each vane comprising a material selected from a group consisting of a metal alloy and a ceramic material, each vane having a first end, a second end opposite the first end, and a flange, the second end of each vane having a post extending through a corresponding opening of the plurality of openings of the second annular wall such that a slip joint is formed between the post and the corresponding opening of the plurality of openings of the second annular wall, the flange of each vane extending through a corresponding slot of the plurality of slots, the flange of each vane extending away from the first end of a corresponding vane and being retained between the first plurality of layers and the second plurality of layers of the first annular wall.
Dependencies are inferred from the claim text.