Wind turbine blade having twisted spar web
OwnerKarsten Schibsbyeinventor
Life of this patent
Estimating the term…
Abstract
A radially twisted wind turbine blade (10), including a radially twisted spar web (122), wherein a center (78) of a radial cross section of a base (12) of the blade rotates within a plane of rotation (80), and wherein at a base (12), a radial cross section of the spar web forms a first angle (82) with the plane of rotation, and at a tip (32) a radial cross section of the spar web forms a second angle (130) with the plane of rotation different than the first angle.
Claims19
A radially twisted wind turbine blade, comprising a radially twisted spar web, wherein a center of a radial cross section of a base of the blade rotates within a plane of rotation, and wherein at a base, a radial cross section of the spar web forms a first angle with the plane of rotation, and at a tip a radial cross section of the spar web forms a second angle with the plane of rotation different than the first angle.
A radially twisted wind turbine blade, comprising a radially twisted spar web configured to hold a pressure side spar cap and a suction side spar cap in a spaced-apart relationship,
- wherein a center of a radial cross section of a base of the blade rotates within a plane of rotation,
- wherein a base, the spar web is oriented such that it resists deflection of the spar web in a direction parallel to the plane of rotation more than it resists deflection of the spar web in a direction perpendicular to the plane of rotation;
- and
- wherein at a tip the spar web is oriented such that it resists deflection of the spar web in the direction normal to the the plane of rotation more than it resists deflection of the spar web in the direction parallel to the plane of rotation.
A radially twisted wind turbine blade, comprising a radially twisted spar web,
- wherein the turbine blade twists from a base of the blade to a tip of the blade,
- wherein a center of a radial cross section of the base of the blade rotates within a plane of rotation, and
- wherein within each radial cross section of the blade the spar web forms an alignment angle of less than 45 degrees with a direction of a net bending moment.
Dependencies are inferred from the claim text.