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US 10,119,520 B2Granted
Rotor blade for a wind turbine
AssigneeSiemens Aktiengesellschaft
InventorAshish Pawar
Life of this patent
Estimating the term…
Abstract
A rotor blade for a wind turbine, having a longitudinal rotor blade base body extending in a longitudinal axis, with the rotor blade base body defining a leading edge and a trailing edge of the rotor blade is provided, wherein the rotor blade base body has a number of panel elements, wherein at least one panel element includes at least one stiffening structure member embedded within the at least one panel element.
Claims17
A rotor blade for a wind turbine, comprising:
- a rotor blade base body extending in a longitudinal axis, with the rotor blade base body defining a leading edge and a trailing edge of the rotor blade, wherein the rotor blade base body comprises:
- a skin comprising a number of panel elements;
- and a central stiffening beam extending in a spanwise direction of the rotor blade,
- wherein at least one panel element of the number of panel elements comprises a first outer layer that defines an external surface of the skin, a second outer layer that defines an internal surface of the skin, a plurality of inner layer elements sandwiched between and bonded to the first outer layer and the second outer layer, and a plurality of stiffening structure members sandwiched between and bonded to the first outer layer and the second outer layer and sandwiched between and bonded to the plurality of inner layer elements,
- wherein each stiffening structure member of the plurality of stiffening structure members is discrete, and
- wherein each stiffening structure member of the plurality of stiffening structure members is oriented to extend from the central stiffening beam such that a respective free end thereof or an extension from the respective free end traverses the trailing edge or the leading edge.
3 more elements
A rotor blade for a wind turbine, comprising:
- a rotor blade base body defining a leading edge and a trailing edge of the rotor blade, wherein the rotor blade base body comprises a skin comprising a plurality of panel elements and a central stiffening beam extending in a spanwise direction of the rotor blade,
- at least one panel element of the plurality of panel elements that comprises a first outer layer that defines an external surface of the skin, a second outer layer that defines an internal surface of the skin, a plurality of inner layer elements sandwiched between and bonded to the first outer layer and the second outer layer, and an arrangement of stiffening structure members sandwiched between and bonded to the first outer layer and the second outer layer and sandwiched between and bonded to the plurality of inner layer elements herein,
- a plurality of leading stiffening structure members of the arrangement of stiffening structure members that originate at respective and different spanwise locations along the central stiffening beam and extend, discrete from any other stiffening structure members of the arrangement of stiffening structure members, toward the leading edge, and
- a plurality of trailing stiffening structure members of the arrangement of stiffening structure members that originate at respective and different spanwise locations along the central stiffening beam and extend, discretely from any other stiffening structure members of the arrangement of stiffening structure members, toward the trailing edge.
1 more element
Dependencies are inferred from the claim text.