Feather seal
The present disclosure includes feather seals for use in gas turbine engines. The feather seals may be used in stationary components such as vanes or blade outer air seals. The feather seals may include stiffening elements, such as round or ovoid dimples, to improve the stiffness of the feather seals.
1. A feather seal comprising:
an axial seal configured for positioning within a feather seal slot and comprising a stiffening element,
wherein the axial seal comprises a first surface and a second surface spaced from the first surface, the first surface defining a first plane and the second surface defining a second plane, and wherein the stiffening element comprises an impression extending inward from the second plane toward the first plane,
wherein the feather seal slot is defined by a first component comprising a first segment having a first circumferential gap and a second component comprising a second segment having a second circumferential gap,
wherein the first segment and the second segment are circumferentially spaced apart to form a radial gap, and wherein the feather seal is configured to seal the gap.
2. The feather seal of claim 1 , further comprising a plurality of stiffening elements.
3. The feather seal of claim 1 , wherein the first segment comprises a vane.
4. The feather seal of claim 3 , wherein the second segment comprises a vane.
5. The feather seal of claim 1 , wherein the first segment comprises a blade outer edge seal.
6. A gas turbine engine section comprising:
a first component having a first segment and a first circumferential gap;
a second component having a second segment and a second circumferential gap, wherein the first circumferential gap and the second circumferential gap define a feather seal slot; and a feather seal positioned within the feather seal slot and comprising a stiffening element,
wherein the feather seal comprises a first surface and a second surface spaced from the first surface, the first surface defining a first plane and the second surface defining a second plane, and wherein the stiffening element comprises an impression extending inward from the second plane toward the first plane.
7. The gas turbine engine section of claim 6 , wherein the first segment comprises a vane.
8. The gas turbine engine section of claim 6 , wherein the first segment comprises a blade outer edge seal.
9. The gas turbine engine section of claim 6 , further comprising a plurality of stiffening elements.
10. A gas turbine engine comprising:
an engine section comprising a first component comprising a first segment having a first circumferential gap and a second component comprising a second segment having a second circumferential gap, wherein the first circumferential gap and the second circumferential gap define a feather seal slot; and
a feather seal comprising a stiffening element and positioned within the feather seal slot, wherein the first segment and the second segment are circumferentially spaced apart to form a radial gap, wherein the feather seal comprises a first surface and a second surface spaced from the first surface, the first surface defining a first plane and the second surface defining a second plane, wherein the stiffening element comprises an impression extending inward from the second plane toward the first plane, and wherein the feather seal is configured to seal the gap.
11. The gas turbine engine of claim 10 , wherein the engine section comprises one of a compressor section and a turbine section.
12. The gas turbine engine of claim 10 , wherein the first component comprises a vane.
13. The gas turbine engine of claim 10 , wherein the first component comprises a blade outer edge seal.
14. The gas turbine engine of claim 10 , further comprising a plurality of stiffening elements.
15. The gas turbine engine of claim 10 , wherein the stiffening element comprises a round shape.
16. The gas turbine engine of claim 10 , wherein the stiffening element comprises an ovoid shape.