Turbine engine with a blade assembly having a set of cooling conduits
AssigneeGeneral Electric Company
InventorsThomas P. Warburg, Zachary R. Noeth, Kelli Marie Fishback, Marie Myers, Zachary Daniel Webster, Kurt Thomas Whittington, Kirk D. Gallier, Jared Peter Buhler
Life of this patent
Estimating the term…
Abstract
A gas turbine engine having a blade assembly with a platform, an airfoil, and a shank. The airfoil has a plurality of cooling conduits, and the shank has a plurality of inlet passages to provide cooling fluid to the cooling conduits in the airfoil. The cooling fluid is vented through a plurality of cooling holes along the airfoil. The blade assembly has specific geometries that improve durability.
Claims9
A blade assembly for a gas turbine engine, the blade assembly comprising:
- a platform having an upper surface and a lower surface, the platform having a stator rotor seal with an upper edge having a radius of curvature defined as a stator rotor seal radius (SRSR), wherein the stator rotor seal radius (SRSR) is 0.224 meters to 0.239 meters;
- an airfoil extending from the upper surface of the platform, the airfoil having an exterior surface, the exterior surface defining a pressure side and a suction side, the airfoil including a leading-edge and a trailing-edge;
- a shank coupled to the lower surface, the shank having a base defining a base plane;
- and
- a middle inlet passage located within the shank, the middle inlet passage having:
- a first cooling conduit portion at a first plane radially spaced 0.0167 meters from the base plane, the first cooling conduit portion having a first cross-sectional area, the first cooling conduit portion defining a first bounding circle, the first cooling conduit portion having:
- a first point at a first 12:30 o'clock position on the first bounding circle;
- and
- a second point at a first 1:30 o'clock position on the first bounding circle, the first point and the second point defining a first line;
- a second cooling conduit portion at a second plane radially spaced 0.0197 meters from the base plane, the second cooling conduit portion having a second cross-sectional area;
- a third cooling conduit portion at a third plane radially spaced 0.0215 meters from the base plane, the third cooling conduit portion having a third cross-sectional area;
- a fourth cooling conduit portion at a fourth plane radially spaced 0.0234 meters from the base plane, the fourth cooling conduit portion having a fourth cross-sectional area;
- a fifth cooling conduit portion at a fifth plane radially spaced 0.0245 meters from the base plane, the fifth cooling conduit portion having a fifth cross-sectional area, the fifth cooling conduit portion defining a second bounding circle, the second cooling conduit portion having:
- a third point at a second 12:30 o'clock position on the second bounding circle;
- and
- a fourth point at a second 1:30 o'clock position on the second bounding circle, the third point and the fourth point defining a second line;
- wherein the middle inlet passage defines a maximum normalized cooling conduit portion area (Amax) ranging between 1.30 and 2.10, Amax defined by:
- A
- max
- =
- max
-
- {
- A
- i
- A
- 1
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- i
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- 2
- 5
- wherein the first line and the second line define a degree of change of the cooling conduit portions along the suction side (DCCPASS) ranging between 21.0 and 33.0 degrees (°);
- and
- a plurality of cooling conduits located within the airfoil, the plurality of cooling conduits including a first quantity (N1) of cooling conduits fed by the middle inlet passage, wherein the first quantity is 2, wherein the plurality of cooling conduits define a second quantity (N2) of cooling conduit portions spanning between the suction side and the pressure side, wherein the second quantity is 3, and wherein:
- 4.94
- 9
- ≤
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- .
- 1
-
- 9
- *
- (
- D
-
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-
- CPASS
-
- (
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- 2
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- N
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- SRSR
-
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Dependencies are inferred from the claim text.