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US 11,920,556 B2Granted
Wind turbine blade
AssigneeVestas Wind Systems A/S
InventorAnton Bech
Life of this patent
Estimating the term…
Abstract
A wind turbine blade includes a first blade portion and a second blade portion coupled together by a connection joint. A first spar cap is associated with an upper shell half and a second spar cap is associated with the lower shell half of each of the first and second blade portions. A shear web extends between the first spar cap and the second spar cap of each of the first and second blade portions. The shear web is terminated away from a joint interface at which the first and second blade portions meet, and there is no shear web extending in a longitudinal direction across the joint interface. The shear web extending between the first spar cap and the second spar cap is branched in the longitudinal direction toward the first and second blade interfaces of the first and second blade portions respectively.
Claims19
A wind turbine blade comprising:
- a first wind turbine blade portion having an upper shell half and a lower shell half that defines a suction side, pressure side, leading edge, and a trailing edge of the blade, the first blade portion further including a first blade interface at one end of the first blade portion;
- a second blade portion having an upper shell half and a lower shell half that defines a suction side, pressure side, leading edge, and a trailing edge of the blade, the second blade portion further including a second blade interface at one end of the second blade portion, wherein the first blade portion and the second blade portion are configured to be coupled together at the first and second blade interfaces;
- a connection joint for coupling the first and second blade portions together;
- a first spar cap associated with the upper shell half and a second spar cap associated with the lower shell half of each of the first and second blade portions;
- and
- a shear web extending between the first spar cap and the second spar cap of each of the first and second blade portions,
- wherein there is no shear web extending in a longitudinal direction across the first and second blade interfaces when the first blade portion and the second blade portion are coupled together by the connection joint, and
- wherein the shear webs of the first and second blade portions are terminated away from the respective first and second blade interfaces to define a termination end of each shear web, and
- wherein the first spar cap and the second spar cap extend longitudinally beyond the termination end of the shear web in the first blade portion and the termination end of the shear web in the second blade portion.
6 more elements
A wind turbine blade comprising:
- a first wind turbine blade portion having an upper shell half and a lower shell half that defines a suction side, pressure side, leading edge, and a trailing edge of the blade, the first blade portion further including a first blade interface at one end of the first blade portion;
- a second blade portion having an upper shell half and a lower shell half that defines a suction side, pressure side, leading edge, and a trailing edge of the blade, the second blade portion further including a second blade interface at one end of the second blade portion, wherein the first blade portion and the second blade portion are configured to be coupled together at the first and second blade interfaces;
- a connection joint for coupling the first and second blade portions together;
- a first spar cap associated with the upper shell half and a second spar cap associated with the lower shell half of each of the first and second blade portions;
- and
- a shear web extending between the first spar cap and the second spar cap of each of the first and second blade portions,
- wherein the shear webs of the first and second blade portions are terminated away from the respective first and second blade interfaces, and there is no shear web between the first and second spar caps extending in a longitudinal direction across the first and second blade interfaces when the first blade portion and the second blade portion are coupled together by the connection joint, and
- wherein the shear web extending between the first spar cap and the second spar cap is branched in the longitudinal direction toward the first and second blade interfaces of the first and second blade portions respectively.
5 more elements
A wind turbine comprising:
- a tower;
- a nacelle positioned atop the tower;
- a rotor coupled to the nacelle and including at least one wind turbine blade including:
- a first wind turbine blade portion having an upper shell half and a lower shell half that defines a suction side, pressure side, leading edge, and a trailing edge of the blade, the first blade portion further including a first blade interface at one end of the first blade portion;
- a second blade portion having an upper shell half and a lower shell half that defines a suction side, pressure side, leading edge, and a trailing edge of the blade, the second blade portion further including a second blade interface at one end of the second blade portion, wherein the first blade portion and the second blade portion are configured to be coupled together at the first and second blade interfaces;
- a connection joint for coupling the first and second blade portions together;
- a first spar cap associated with the upper shell half and a second spar cap associated with the lower shell half of each of the first and second blade portions;
- and
- a shear web extending between the first spar cap and the second spar cap of each of the first and second blade portions,
- wherein there is no shear web extending in a longitudinal direction across the first and second blade interfaces when the first blade portion and the second blade portion are coupled together by the connection joint, and
- wherein the shear webs of the first and second blade portions are terminated away from the respective first and second blade interfaces to define a termination end of each shear web, and
- wherein the first spar cap and the second spar cap extend longitudinally beyond the termination end of the shear web in the first blade portion and the termination end of the shear web in the second blade portion.
9 more elements
A wind turbine blade comprising:
- a first wind turbine blade portion having an upper shell half and a lower shell half that defines a suction side, pressure side, leading edge, and a trailing edge of the blade, the first blade portion further including a first blade interface at one end of the first blade portion;
- a second blade portion having an upper shell half and a lower shell half that defines a suction side, pressure side, leading edge, and a trailing edge of the blade, the second blade portion further including a second blade interface at one end of the second blade portion, wherein the first blade portion and the second blade portion are configured to be coupled together at the first and second blade interfaces;
- a connection joint for coupling the first and second blade portions together;
- a first spar cap associated with the upper shell half and a second spar cap associated with the lower shell half of each of the first and second blade portions;
- and
- a shear web extending between the first spar cap and the second spar cap of each of the first and second blade portions,
- wherein there is no shear web extending in a longitudinal direction across the first and second blade interfaces when the first blade portion and the second blade portion are coupled together by the connection joint,
- wherein the shear webs of the first and second blade portions are terminated away from the respective first and second blade interfaces to define a termination end of each shear web, and
- wherein a longitudinal centerline is defined between the termination end of the shear web in the first blade portion and the termination end of the shear web in the second blade portion and that longitudinal centerline does not intersect any structure between the termination ends.
6 more elements
Dependencies are inferred from the claim text.