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US 7,322,798 B2Granted
High structural efficiency blades and devices using same
AssigneeGeneral Electric Company
InventorRonald Ralph Cairo
Life of this patent
Estimating the term…
Abstract
A blade for a rotor has integral stiffeners with at least one of unidirectional caps configured to carry blade bending loads in axial tension or webs to carry transverse shear resulting from blade bending.
Claims20
A rotor blade comprising:
- a substantially hollow blade skin;
- at least one stiffener formed integral with an inner surface of said blade skin;
- and
- at least one of a unidirectional cap coupled to said blade skin and configured to carry blade bending loads in axial tension and a web coupled to said blade skin and configured to carry transverse shear resulting from blade bending.
1 more element
A wind turbine comprising:
- a generator;
- a hub;
- and
- a blade coupled to said hub, said blade comprising:
- a substantially hollow blade skin;
- a stiffener formed integrally with an inner surface of said blade skin;
- and
- at least one of a unidirectional cap coupled to said blade skin and configured to carry blade bending loads in axial tension and a web coupled to said blade skin and configured to carry transverse shear resulting from blade bending.
5 more elements
Dependencies are inferred from the claim text.