Wind turbine blade and method for producing a wind turbine blade
AssigneeLm Wind Power A/S
InventorsMichael Wenani Nielsen, David Roberts, Rune Vestergaard, Maurits Bakkum
Life of this patent
Estimating the term…
Abstract
Disclosed is a wind turbine blade and a method for its production. The wind turbine blade comprises an upwind side shell part and a downwind side shell part. The upwind side shell part and the downwind side part are bonded together along at least one joint. At said at least one joint, the upwind side shall part and the downwind side shell part are bonded at an internal glue flange as well as at an external glue flange. The glue flange can be produced by using a mould insert along which the glue flange is laminated.
Claims19
A wind turbine blade, comprising:
- an upwind side shell part and a downwind side shell part,
- wherein the upwind side shell part and the downwind side shell part are bonded together along at least one joint,
- wherein at least one of the upwind side shell part and the downwind side shell part comprises both an internal glue flange and an external glue flange,
- wherein, at said at least one joint, the upwind side shell part and/or the downwind side shell part are bonded at the internal glue flange and the external glue flange,
- wherein the internal glue flange and the external glue flange together form an L-shaped cross-sectional profile, and
- wherein the external glue flange projects external to the upwind side shell part and the downwind side shell part, on an outside of the wind turbine blade.
A method for producing a shell part of a wind turbine blade, the method comprising the steps of:
- arranging a core and one or more first fibre layers in a blade mould;
- arranging one or more second fibre layers on at least part of the core and/or the one or more first fibre layers;
- moving a mould inlay onto at least part of the one or more second fibre layers and wrapping the one or more second fibre layers around at least part of the mould inlay;
- curing the one or more second fibre layers to form at least one glue flange;
- and
- removing the mould inlay,
- wherein the at least one glue flange comprises an internal glue flange and an external glue flange, the shell part comprising the internal glue flange and the external glue flange formed by the cured one or more second fibre layers, and
- wherein the external glue flange is located on an exterior of the shell part.
A wind turbine blade, comprising:
- an upwind side shell part and a downwind side shell part,
- wherein the upwind side shell part and the downwind side shell part are bonded together along at least one joint,
- wherein, at said at least one joint, the upwind side shell part and/or the downwind side shell part are bonded at an internal glue flange as well as at an external glue flange, and
- wherein at least one of the internal and external glue flanges comprise along a trailing edge, a varying number of fibre layers, a varying height, a varying width and/or a varying thickness.
A wind turbine blade, comprising:
- an upwind side shell part and a downwind side shell part,
- wherein the upwind side shell part and the downwind side shell part are bonded together along at least one joint,
- wherein, at said at least one joint, the upwind side shell part and/or the downwind side shell part are bonded at an internal glue flange as well as at an external glue flange, and
- wherein a height of the internal glue flange decreases towards a tip end of the wind turbine blade, at least along part of the internal glue flange.
A wind turbine blade, comprising:
- an upwind side shell part and a downwind side shell part,
- wherein the upwind side shell part and the downwind side shell part are bonded together along at least one joint,
- wherein, at said at least one joint, the upwind side shell part and/or the downwind side shell part are bonded at an internal glue flange as well as at an external glue flange, and
- wherein the internal glue flange diminishes towards a root region and/or towards a tip end of the wind turbine blade.
Dependencies are inferred from the claim text.