Wind turbine generator with hydraulic pump
AssigneeDelft Offshore Turbine B.V.
InventorJan VAN DER TEMPEL
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Abstract
Wind turbine, comprising a tower and a head mounted at an upper end of said tower, rotational around a head axis, wherein a propeller is mounted to said head, rotatable around a propeller axis, wherein a hydraulic pump is provided, driven by said propeller, wherein the hydraulic pump is provided substantially in the propeller.
Claims27
A wind turbine, comprising
- a tower and a head mounted at an upper end of said tower, the head being rotational around a head axis, wherein a propeller is mounted to said head, the propeller being rotatable around a propeller axis, wherein the propeller comprises a hub, wherein a hydraulic pump is provided and configured to be driven by said propeller, wherein the hydraulic pump is provided substantially in the hub of the propeller such that the hydraulic pump is configured for removal from the head together with the propeller,
- wherein the head is provided with a nave, wherein a movable part of the hydraulic pump rotates with the propeller at least partly around a part of said nave, wherein said nave forms or is provided with a substantially stationary part of the hydraulic pump, and wherein the propeller comprises a rotational part of the hydraulic pump, and
- wherein said nave comprises a first part inside said head and a second part which is releasably connected to said first part, wherein said second part is provided in or by said hydraulic pump.
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A method for installing and/or maintenance of a wind turbine, wherein a tower with a head is placed in a selected position, and a propeller system is shipped to said tower, the propeller system including at least a substantial part of a hydraulic pump provided in a hub of the propeller, wherein the propeller system is lifted to the head such that the hydraulic pump can be assembled in the wind turbine and/or can be connected to a hydraulic circuit extending through the tower and the head, wherein the propeller system is connected to the head.
(canceled)
A wind turbine, comprising
- a tower and a rotational head mounted at an upper end of said tower, wherein a propeller is mounted to said rotational head, the propeller being rotatable around a propeller axis, wherein the propeller comprises a hub, wherein a hydraulic pump is provided and configured to be driven by said propeller, wherein the hydraulic pump is provided substantially in the hub of the propeller such that the hydraulic pump is configured for removal from the rotational head together with the propeller,
- wherein a fluid circuit extends through the tower and the rotational head, which fluid circuit comprises a part extending inside the hub of the propeller, which part comprises at least part of the hydraulic pump, and
- wherein the fluid circuit comprises at least one valve provided in or near the rotational head for disconnecting a fluid inlet channel of said fluid circuit from the hydraulic pump, and further provided with at least a second valve in or near the rotational head for disconnecting an outlet channel of said fluid circuit from the hydraulic pump.
A wind turbine, comprising
- a tower and a head mounted at an upper end of said tower, the head being rotational around a head axis, wherein a propeller is mounted to said head, the propeller being rotatable around a propeller axis, wherein the propeller comprises a hub, wherein a hydraulic pump is provided and configured to be driven by said propeller, wherein the hydraulic pump is provided substantially in the hub of the propeller such that the hydraulic pump is configured for removal from the head together with the propeller,
- wherein the hydraulic pump is mounted to the head using a mounting provision also supporting the propeller, wherein the hub has one or more blades connected thereto, wherein the hub is mounted on at least one bracket which extends from the hub, which bracket is releasably connected to the head.
Dependencies are inferred from the claim text.