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    IMPROVEMENTS RELATING TO THE TRANSPORTATION OF WIND TURBINE ROTOR HUBS
    2.
    发明申请
    IMPROVEMENTS RELATING TO THE TRANSPORTATION OF WIND TURBINE ROTOR HUBS 有权

    公开(公告)号：US20230011388A1

    公开(公告)日：2023-01-12

    申请号：US17783034

    申请日：2020-11-25

    Applicant: Vestas Wind Systems A/S

    Inventor： Erik Garde

    IPC: F03D13/40 ,  F03D1/06

    Abstract: A rotor hub for a wind turbine which can be configured between an in use or ‘operational’ configuration and a transportation configuration. In the transportation configuration the rotor hub has a reduced external size compared to when it is in the operational configuration. The rotor hub comprises a generally hollow hub body having a first end and a second end spaced along a hub rotational axis, wherein the first end defines a rotor connection flange configured to connect the rotor hub to a main shaft, and wherein a second end defines a nose region of the hub. The hub also defines at least one blade aperture defined between the first end and the second end, a blade bearing associated with the or each blade aperture, and a pitch actuator associated with the blade bearing. In the operational configuration a portion of the pitch actuator protrudes from the nose region of the hub body by a first distance, whereas in the transport configuration the portion of the pitch actuator protrudes from the nose region of the hub body by a lesser extent than when in the operational configuration. Therefore it will be appreciated that the pitch actuator is energised to change the extent to which the pitch actuator protrudes through the nose region of the hub body.

    Relating to the transportation of wind turbine rotor hubs
    4.
    发明授权
    Relating to the transportation of wind turbine rotor hubs 有权

    公开(公告)号：US12203444B2

    公开(公告)日：2025-01-21

    申请号：US17783034

    申请日：2020-11-25

    Applicant: Vestas Wind Systems A/S

    Inventor： Erik Garde

    IPC: F03D13/40 ,  F03D1/06

    Abstract: A rotor hub for a wind turbine which can be configured between an in use or ‘operational’ configuration and a transportation configuration. In the transportation configuration the rotor hub has a reduced external size compared to when it is in the operational configuration. The rotor hub comprises a generally hollow hub body having a first end and a second end spaced along a hub rotational axis, wherein the first end defines a rotor connection flange configured to connect the rotor hub to a main shaft, and wherein a second end defines a nose region of the hub. The hub also defines at least one blade aperture defined between the first end and the second end, a blade bearing associated with the or each blade aperture, and a pitch actuator associated with the blade bearing. In the operational configuration a portion of the pitch actuator protrudes from the nose region of the hub body by a first distance, whereas in the transport configuration the portion of the pitch actuator protrudes from the nose region of the hub body by a lesser extent than when in the operational configuration. Therefore it will be appreciated that the pitch actuator is energised to change the extent to which the pitch actuator protrudes through the nose region of the hub body.

    Wind turbine pitch actuator mounting structure
    6.
    发明授权
    Wind turbine pitch actuator mounting structure 有权

    公开(公告)号：US11208983B2

    公开(公告)日：2021-12-28

    申请号：US16068793

    申请日：2017-01-05

    Applicant: Vestas Wind Systems A/S

    Inventor： Simon Kabus ,  Jacob Hviid Nielsen ,  Jesper Lykkegaard Neubauer ,  Erik Garde ,  Lasse Køgs Andersen ,  Frank Møller Hansen

    IPC: F03D1/06 ,  F03D7/02 ,  F03D80/70

    Abstract: Wind turbine pitch actuator mounting structure A mounting structure is described for attaching a pitch actuator to a hub of a wind turbine. The mounting structure has one or more legs each having a proximal end and a distal end, and a flexible intermediate portion between the proximal and distal ends. The mounting structure further comprises an actuator attachment portion for attaching to a wind turbine blade pitch actuator. The actuator attachment portion is arranged at the distal end(s) of the one or more legs. The proximal end(s) of the one or more legs are configured for attachment to a wind turbine hub. The flexible intermediate portion(s) of the one or more legs are configured to flex in use to absorb loads acting on the pitch actuator. The mounting structure therefore allows the pitch actuator to pivot in a first plane by virtue of the flexible legs. The pitch actuator may be attached to the mounting structure via pivot bearings arranged to allow the pitch actuator to pivot in a second plane, substantially perpendicular to the first plane.

    Pitch adjustment cylinder for adjustment of a pitch angle of a blade of a wind turbine
    7.
    发明授权
    Pitch adjustment cylinder for adjustment of a pitch angle of a blade of a wind turbine 有权

    公开(公告)号：US10895245B2

    公开(公告)日：2021-01-19

    申请号：US16473384

    申请日：2017-11-30

    Applicant: Vestas Wind Systems A/S

    Inventor： Lasse Køgs Andersen ,  Erik Garde ,  Simon Kabus ,  Jesper Lykkegaard Neubauer

    IPC: F03D7/02 ,  F15B15/20

    Abstract: Pitch cylinders for adjusting a pitch angle of a blade, methods of assembling pitch cylinders, and the use of pitch cylinders in wind turbines are disclosed. The pitch cylinder includes a cylinder barrel having a first thread with a first pitch, a piston arranged in and extending out of the cylinder barrel for coupling to a blade or hub, and a trunnion to couple the cylinder barrel to the other of the blade or hub. The cylinder barrel extends through the trunnion. The trunnion has a first thread with a second pitch different from the first pitch, and a sleeve arranged between the trunnion and the cylinder barrel that extends through the sleeve. The sleeve has an inner sleeve thread with the first pitch engaged with the first cylinder barrel thread and an outer sleeve thread with the second pitch engaged with the first trunnion thread.

    PTICH SYSTEM FOR A WIND TURBINE
    8.
    发明申请
    PTICH SYSTEM FOR A WIND TURBINE 有权
    风力涡轮机系统

    公开(公告)号：US20140328681A1

    公开(公告)日：2014-11-06

    申请号：US14369920

    申请日：2012-11-29

    Applicant: Vestas Wind Systems A/S

    Inventor： Erik Garde

    IPC: F03D7/02 ,  F03D7/04

    CPC classification number: F03D7/0224 ,  F03D7/04 ,  F05B2260/30 ,  F05B2260/74 ,  F05B2260/76 ,  F05B2260/79 ,  F05B2270/107 ,  F05B2270/602 ,  F05B2270/604 ,  Y02E10/723

    Abstract: A wind turbine comprises a hub, a blade rotatably mounted to the hub, and a pitch system. The pitch system includes a support, a first drive configured to rotate the blade relative to the support, a second drive configured to rotate the support relative to the hub. The support is configured to be selectively fixed relative to the blade and the hub such that the first or second drive may be used to pitch the blade. A method of pitch corresponding to this operation is provided.

    Abstract translation: 风力涡轮机包括轮毂，可旋转地安装到轮毂的叶片和俯仰系统。 俯仰系统包括支撑件，构造成相对于支撑件旋转叶片的第一驱动器，配置成相对于轮毂旋转支撑件的第二驱动器。 支撑件被配置为相对于叶片和轮毂选择性地固定，使得第一或第二驱动器可以用于推动叶片。 提供了与该操作相对应的间距的方法。

    Pitch system for a wind turbine blade
    9.
    发明授权
    Pitch system for a wind turbine blade 有权

    公开(公告)号：US12270371B2

    公开(公告)日：2025-04-08

    申请号：US18565156

    申请日：2022-06-08

    Applicant: Vestas Wind Systems A/S

    Inventor： Lasse Godballe Andersen ,  Erik Garde

    IPC: F03D1/06 ,  F03D7/02

    Abstract: A pitch actuator for a wind turbine pitch system, the pitch actuator having an actuator rod, a drive end of which is defined by a clevis fork arrangement having first fork member and a second fork member that extend in a direction along a rod axis and terminate at a tip end. The first and second fork members define respective clevis openings for receiving a clevis pin therethrough, said clevis openings each having an opening perimeter profile comprising: a first perimeter section defined by a leading circular arc that is centred on the rod axis and oriented in the direction of the tip end of the fork members, the circular arc defining a nominal radius and a central angle of less than 120 degrees, and second and third flared perimeter sections that flank respective sides of the first perimeter section, each of which define an enlarged clearance zone with respect to at least part of an imaginary circle defined by the nominal radius of the first perimeter section. A benefit of the invention is that the enlarged clearance zones defined by the flared perimeter sections create an area where there is no contact between the perimeter of the openings and the outer surface of the clevis pin. This provides a stress relieving function since deformation of the openings in use, due to force applied along the axis of the actuator rod, does not create a point of stress combined with sliding or rubbing movement with the sides of the clevis pin, thereby reducing wear and fatigue. The invention extends to a pitch system including such a pitch actuator and a wind turbine incorporating such a pitch system.

    Pitch system for a wind turbine blade
    10.
    发明授权
    Pitch system for a wind turbine blade 有权

    公开(公告)号：US12173685B2

    公开(公告)日：2024-12-24

    申请号：US18559349

    申请日：2022-03-07

    Applicant: Vestas Wind Systems A/S

    Inventor： Lasse Godballe Andersen ,  Erik Garde ,  Kris Kristensen Riisager

    IPC: F03D1/06

    Abstract: A pitch system for rotating a blade of a wind turbine relative to a hub. The pitch system comprises a blade bearing including an inner bearing ring and an outer bearing ring, wherein the outer bearing ring is rotatable relative to the inner bearing ring, and an actuator system configured to control relative rotational movement between the inner bearing ring and outer bearing ring, comprising. The actuator system comprises a first load transfer beam arrangement spanning at least first and second fixing positions associated with the inner bearing ring, a second load transfer beam arrangement spanning at least first and second fixing positions associated with the outer bearing ring, and a first linear actuator coupled between the first load transfer beam arrangement and the second load transfer beam arrangement. A benefit of the pitch system of the invention is that it achieves a reduction in mass yet retains a stiff connection between the hub and an associated blade. Therefore, larger and heavier blades can be coupled to the pitch system whilst mitigating a proportional increase in mass of the pitch system.

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