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    WIND TURBINE BLADE VORTEX REDUCTION
    1.
    发明公开
    WIND TURBINE BLADE VORTEX REDUCTION 审中-公开

    公开(公告)号：EP4438888A1

    公开(公告)日：2024-10-02

    申请号：EP23382310.3

    申请日：2023-03-31

    申请人： Siemens Gamesa Renewable Energy Innovation & Technology S.L.

    发明人： Logothetis, Dimitrios

    IPC分类号： F03D1/06 ,  F03D7/02

    CPC分类号： F03D1/0641 ,  F05B2240/30120130101 ,  F05B2240/30720200801 ,  F05B2250/31420130101 ,  F03D1/0633 ,  F03D7/0228

    摘要： The present invention relates to a tip extension (1) for a tip section (2) of a wind turbine blade (3) of a wind turbine (4), comprising a first section (5) for facing in a direction of a root section (6) of the wind turbine blade (3) and an adjacent second section (7) for facing in a direction away from the root section (6) of the wind turbine blade (3), wherein the first section (5) and the second section (7) are arranged along a span-wise axis (S), thus defining a length of the tip extension (1), and a width of the tip extension (1) is defined by a chord-wise axis (C). The tip extension (1) for a tip section (2) of a wind turbine blade (3) of a wind turbine (4) comprises a first section (5) for facing in a direction of a root section (6) of the wind turbine blade (3) and an adjacent second section (7) for facing in a direction away from the root section (6) of the wind turbine blade (3), wherein the first section (5) and the second section (7) are arranged along a span-wise axis (S), thus defining a length of the tip extension (1), and a width of the tip extension (1) is defined by a chord-wise axis (C). The invention also relates to a wind turbine blade (3) for a wind turbine (4) and a wind turbine (4) for generating electric power from wind energy.

    A WIND TURBINE BLADE
    2.
    发明公开
    A WIND TURBINE BLADE 审中-实审

    公开(公告)号：EP4390111A1

    公开(公告)日：2024-06-26

    申请号：EP22215929.5

    申请日：2022-12-22

    申请人： VESTAS WIND SYSTEMS A/S

    发明人： RANDALL, Stephen ,  SINGH, Gurmukh

    IPC分类号： F03D1/06 ,  B29D99/00

    CPC分类号： B29D99/0028 ,  F05B2240/30120130101 ,  F03D1/0682

    摘要： A wind turbine blade comprising a leeward shell portion and a windward shell portion, each of the shell portions extending in a chordwise direction between a leading edge and a trailing edge of the wind turbine blade; a leading reinforcement arrangement comprising at least a leading leeward reinforcement structure engaging the leeward shell portion and a leading windward reinforcement structure engaging the windward shell portion; and a trailing reinforcement arrangement comprising at least a trailing leeward reinforcement structure engaging the leeward shell portion and a trailing windward reinforcement structure engaging the windward shell portion. The trailing windward reinforcement structure has a first stiffness in the lengthwise direction and the trailing leeward reinforcement structure has a second stiffness in the lengthwise direction, wherein the first stiffness is greater than the second stiffness at a chordwise plane of the wind turbine blade.

    LOW NOISE WIND TURBINE BLADE
    5.
    发明公开
    LOW NOISE WIND TURBINE BLADE 审中-公开

    公开(公告)号：EP4435251A1

    公开(公告)日：2024-09-25

    申请号：EP23164035.0

    申请日：2023-03-24

    申请人： LM Wind Power A/S

    发明人： WANG, Guannan ,  HURAULT, Jeremy Pierre ,  HERRIG, Andreas

    IPC分类号： F03D1/06

    CPC分类号： F03D1/0641 ,  F05B2240/30120130101 ,  F05B2240/30320200801

    摘要： A wind turbine blade and a wind turbine having such wind turbine blade is disclosed. The wind turbine blade having a profiled contour including a pressure side and a suction side, and a leading edge and a trailing edge with a chord extending therebetween defining a chordwise direction. The wind turbine blade extends in a longitudinal direction between a root end and a tip end and having a blade length along the longitudinal direction. The wind turbine blade has a first airfoil blade section along the longitudinal direction being located between 40% and 100% of the blade length measured from the root end. Within the first airfoil blade section, the pressure side is substantially straight near the trailing edge.