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US 11,511,336 B2Granted
Hybrid turbine blade for improved engine performance or architecture
AssigneeRaytheon Technologies Corporation
InventorsDilip M. Shah, Alan D. Cetel
Life of this patent
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Abstract
A blade has an attachment root and an airfoil, the airfoil having a proximal end and a distal end. The blade has a compositional variation along the airfoil.
Claims20
A blade (60;
- 60-2;
- 60-3) comprising:
- an attachment root (63);
- and
- an airfoil (61), the airfoil having a proximal end (68) and a distal end (69), wherein the blade has a compositional change between an outboard portion and an inboard portion with a single crystal crystalline structure extending across the outboard portion and inboard portion,
- wherein:
- the compositional variation provides the outboard portion of the blade (80;
- 80-2) with a lower density than the inboard portion of the blade (82;
- 82-2) so that the single crystal crystalline structure extends across the compositional variation.
6 more elements
A blade (60;
- 60-2;
- 60-3) having an attachment root (63) and an airfoil (61), the airfoil having a proximal end (68) and a distal end (69), the blade further comprising:
- a compositional variation along the airfoil,
- wherein:
- the compositional variation provides an outboard portion of the blade (80;
- 80-2) with a lower density than a higher density inboard portion of the blade (82;
- 82-2);
- and
- the lower density outboard portion and the higher density inboard portion are both single crystal structures.
6 more elements
Dependencies are inferred from the claim text.