Back to results
US 2012/0057981 A1Published application
Turbine blade airfoil
AssigneeUnited Technologies Corporation
InventorsTimothy Charles Nash, Jason L. O'Hearn
Life of this patent
Estimating the term…
Abstract
An airfoil comprises an external surface formed in substantial conformance with a plurality of cross sections. Each of the cross sections has an axial chord and an offset at a corresponding fractional span as set forth in Table 2. Each of the cross sections is described by a set of Cartesian coordinates defined at the corresponding fractional span as set forth in Table 4.
Claims20
An airfoil comprising:
- an external surface formed in substantial conformance with a plurality of cross sections of the airfoil, each of the cross sections having an axial chord and an offset at a corresponding fractional span as set forth in Table 2 herein;
- wherein each of the cross sections is described by a set of Cartesian coordinates defined at the corresponding fractional span as set forth in Table 4 herein.
A blade comprising:
- an airfoil formed in substantial conformance with a plurality of cross sections defining an external surface of the blade;
- and
- a platform attached to a root section of the airfoil;
- wherein each of the cross sections has an axial chord and an offset at a corresponding fractional span as set forth in Table 2 herein;
- and
- wherein each of the cross sections is described by a set of Cartesian coordinates defined at the corresponding fractional span as set forth in Table 4 herein.
3 more elements
A turbine assembly comprising:
- a plurality of rotor airfoils arranged circumferentially about a turbine axis, each of the rotor airfoils being formed in substantial conformance with a plurality of blade sections, each of the blade sections having an axial chord and an offset at a corresponding fractional span as set forth in Table 2 herein;
- wherein each of the blade sections is described by a set of Cartesian coordinates defined at the corresponding fractional span as set forth in Table 4 herein.
Dependencies are inferred from the claim text.