CURVED PLATFORM TURBINE BLADE
First Claim
Patent Images
1. A turbine blade comprising:
- an airfoil integrally joined to a platform and a dovetail, and having laterally opposite pressure and suction sides extending longitudinally in span from said platform, and axially in chord between opposite leading and trailing edges;
said platform being contoured in elevation to include an elevated ridge and a depressed trough having complementary portions on said opposite sides of said airfoil between laterally opposite first and second splitline edges; and
said dovetail and said first and second edges being axially arcuate at correspondingly constant lateral radii.
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Abstract
A turbine blade includes an airfoil and integral platform at the root thereof. The platform is contoured in elevation from a ridge to a trough, and is curved axially to complement the next adjacent curved platform.
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Citations
26 Claims
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1. A turbine blade comprising:
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an airfoil integrally joined to a platform and a dovetail, and having laterally opposite pressure and suction sides extending longitudinally in span from said platform, and axially in chord between opposite leading and trailing edges; said platform being contoured in elevation to include an elevated ridge and a depressed trough having complementary portions on said opposite sides of said airfoil between laterally opposite first and second splitline edges; and said dovetail and said first and second edges being axially arcuate at correspondingly constant lateral radii. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A turbine blade comprising:
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an airfoil integrally joined to a platform and a dovetail; said platform being contoured in elevation to include an elevated ridge and a depressed trough; and both said platform and dovetail being axially arcuate. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification