Chamfered stator vane rail
A chamfered stator vane rail is provided. The chamfered stator vane rail may comprise a forward rail and an aft rail axially opposite the forward rail. The aft rail may comprise a leading edge and a trailing edge located axially opposite and aft of the leading edge. The aft rail may comprise a chamfered edge on a radially outer surface. The chamfered edge may be oriented at an angle relative to an axis.
1. A stator vane rail, comprising:
a forward rail; and
an aft rail located axially opposite the forward rail, wherein the aft rail comprises:
an axis defining a perpendicular direction from the aft rail;
a leading edge;
a trailing edge located axially opposite the leading edge; and
a chamfered edge coupled to the leading edge, wherein the chamfered edge comprises a radially outer surface of the aft rail,
wherein the chamfered edge comprises a bow tied surface.
2. The stator vane rail of claim 1 , wherein the chamfered edge comprises a substantially flat surface.
3. The stator vane rail of claim 1 , wherein the chamfered edge comprises a curved surface extending in a radial direction away from the axis.
4. The stator vane rail of claim 1 , wherein the chamfered edge is oriented at an angle of about 45° to about °60 relative to the axis.
5. The stator vane rail of claim 1 , wherein the chamfered edge is oriented at an angle of about 15° to about 45° relative to the axis.
6. The stator vane rail of claim 1 , wherein the chamfered edge comprises a sinusoidal surface.
7. A stator vane assembly, comprising:
a stator vane having a first end opposite a second end;
an ID stator vane rail coupled to the first end, the ID stator vane rail comprising:
an ID forward rail; and
an ID aft rail located axially opposite the ID forward rail, wherein the ID aft rail comprises:
an ID axis defining a first perpendicular direction relative to the ID aft rail;
an ID leading edge;
an ID trailing edge located axially opposite the ID leading edge;
an ID chamfered edge coupled to the ID leading edge, wherein the ID chamfered edge comprises a first radially outer surface of the ID aft rail, and wherein the ID chamfered edge is oriented at a first angle of about 45° to about 60° relative to the ID axis; and
an OD stator vane rail coupled to the second end, wherein the OD stator vane rail comprises:
an OD forward rail; and
an OD aft rail located axially opposite the OD forward rail, wherein the OD aft rail comprises:
an OD axis defining a second perpendicular direction relative to the OD aft rail;
an OD leading edge;
an OD trailing edge located axially opposite the OD leading edge; and
an OD chamfered edge coupled to the OD leading edge, wherein the OD chamfered edge comprises a second radially outer surface of the OD aft rail.
8. The stator vane assembly of claim 7 , wherein the OD chamfered edge comprises a curved surface extending in a radial direction away from the OD axis.
9. The stator vane assembly of claim 7 , wherein the OD chamfered edge is oriented at a second angle of about 45° to about 60° relative to the ID axis.
10. The stator vane assembly of claim 7 , wherein the OD chamfered edge comprises a bow tied surface.
11. The stator vane assembly of claim 10 , wherein the OD chamfered edge comprises a sinusoidal surface.
12. A gas turbine engine, comprising:
a turbine section; and
a stator vane assembly in the turbine section, the stator vane assembly comprising:
a stator vane having a first end opposite a second end;
an ID stator vane rail coupled to the first end;
an OD stator vane rail coupled to the second end, wherein the OD stator vane rail comprises:
an OD forward rail; and
an OD aft rail located axially opposite the OD forward rail, wherein the OD aft rail comprises:
an OD axis defining a first perpendicular direction relative to the OD aft rail;
an OD leading edge;
an OD trailing edge located axially opposite the OD leading edge; and
an OD chamfered edge coupled to the OD leading edge, wherein the OD chamfered edge comprises a first radially outer surface of the OD aft rail,
wherein the OD chamfered edge comprises a bow tied surface.
13. The gas turbine engine of claim 12 , wherein the ID stator vane rail comprises:
an ID forward rail; and
an ID aft rail located axially opposite the ID forward rail, wherein the ID aft rail comprises:
an ID axis defining a second perpendicular direction relative to the ID aft rail;
an ID leading edge;
an ID trailing edge located axially opposite the ID leading edge;
an ID chamfered edge coupled to the ID leading edge, wherein the ID chamfered edge comprises a second radially outer surface of the ID aft rail, and wherein the ID chamfered edge is oriented at an angle of about 45° to about 60° relative to the ID axis.
14. The gas turbine engine of claim 12 , wherein the OD chamfered edge comprises a curved surface.
15. The gas turbine engine of claim 12 , wherein the OD chamfered edge is oriented at an angle of about 45° to about 60° relative to the OD axis.
16. The gas turbine engine of claim 12 , further comprising an OD leading edge seal located forward the OD leading edge.
17. The gas turbine engine of claim 12 , further comprising an OD trailing edge seal located aft the OD trailing edge.