SHOWERHEAD HOLE SCHEME APPARATUS AND SYSTEM
First Claim
Patent Images
1. A gas turbine component having a showerhead cooling hole layout, comprising:
- a pressure side row of radially disposed showerhead cooling holes,wherein a breakout of the pressure side row of radially disposed showerhead cooling holes comprise a greater deflection in a γ
direction than in a δ
direction, where γ and
δ
are lateral directions;
a second row of radially disposed showerhead cooling holes, wherein a breakout of the second row of radially disposed showerhead cooling holes comprise about 0 to 5 degrees of deflection in the γ
direction and the δ
direction; and
a suction side row of radially disposed showerhead cooling holes, wherein a breakout of the aft most row of radially disposed showerhead cooling holes comprise a greater deflection in the δ
direction than in the γ
direction.
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Abstract
The gas turbine component showerhead cooling hole layouts described herein include minimal lateral cooling hole exit diffusion on the middle showerhead cooling hole rows and interior facing sides of outer rows. In this way, rows of cooling holes may be placed close together. Stated another way, the outer showerhead cooling hole rows substantially only include lateral cooling hole exit diffusion in the direction away from the other rows to again allow the rows to be placed close together.
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Citations
20 Claims
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1. A gas turbine component having a showerhead cooling hole layout, comprising:
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a pressure side row of radially disposed showerhead cooling holes, wherein a breakout of the pressure side row of radially disposed showerhead cooling holes comprise a greater deflection in a γ
direction than in a δ
direction, where γ and
δ
are lateral directions;a second row of radially disposed showerhead cooling holes, wherein a breakout of the second row of radially disposed showerhead cooling holes comprise about 0 to 5 degrees of deflection in the γ
direction and the δ
direction; anda suction side row of radially disposed showerhead cooling holes, wherein a breakout of the aft most row of radially disposed showerhead cooling holes comprise a greater deflection in the δ
direction than in the γ
direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A gas turbine component having a showerhead cooling hole layout, comprising:
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a first outer row of radially disposed showerhead cooling holes; a first interior row of radially disposed showerhead cooling holes; and a second outer row of radially disposed showerhead cooling holes, wherein a breakout of the first outer row of radially disposed showerhead cooling holes, the first interior row of radially disposed showerhead cooling holes and the second outer row of radially disposed showerhead cooling holes, at least partially overlap along a lateral plane, and wherein a first outer row diffusion angle of the breakout of the first outer row of radially disposed showerhead cooling holes, a first interior row diffusion angle of the breakout of the first interior row of radially disposed showerhead cooling holes and a second outer row diffusion angle of the breakout of the second outer row of radially disposed showerhead cooling holes are directed away from adjacent rows. - View Dependent Claims (17, 18, 19)
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20. A gas turbine component having a showerhead cooling hole layout, comprising:
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a first outer row of radially disposed showerhead cooling holes; and a second outer row of radially disposed showerhead cooling holes, wherein a diffusion angle of a breakout of the first outer row of radially disposed showerhead cooling holes and a diffusion angle of a breakout of the second outer row of radially disposed showerhead cooling holes are directed laterally away from adjacent rows, wherein the diffusion angle of the breakout of the first outer row of radially disposed showerhead cooling holes and the diffusion angle of the breakout of the second outer row of radially disposed showerhead cooling holes are minimized in a lateral direction towards adjacent rows.
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Specification