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US 2025/0154936 A1Published application
Wind Turbine
AssigneeNordex Energy Spain, S.A.
InventorsJavier Pascual Resano, Jose Luis Aristegui Lantero, Teresa Arlaban Gabeiras, Jose Miguel Garcia Sayes, Miguel Nunez Polo
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Abstract
The present invention describes a wind turbine comprising a hub, at least one blade and at least one pitch bearing to connect the at least one blade to the hub, the at least one pitch bearing comprising at least an inner ring and an outer ring, and at least a rolling race, wherein the wind turbine further comprises at least a tensioning system configured to exert a radial compression force to at least a part of the outer ring of the at least one pitch bearing, thus increasing the resultant stiffness of the at least one pitch bearing.
Claims18
A wind turbine comprising:
- a hub;
- at least one blade;
- and
- at least one pitch bearing to connect the at least one blade to the hub, the at least one pitch bearing comprising at least an inner ring and an outer ring;
- wherein the wind turbine further comprises at least a tensioning system disposed at least partially on the outer ring of the at least one pitch bearing exerting a radial compression force to at least a part of the outer ring of the at least one pitch bearing;
- wherein the outer ring comprises a flat surface proximate to the at least one blade and a flat surface proximate to the hub;
- wherein at least 50% of a force generated by the tensioning system is applied closer to the flat surface proximate to the blade than to the flat surface proximate to the hub.
4 more elements
A wind turbine comprising:
- a hub;
- at least one blade;
- and
- at least one pitch bearing to connect the at least one blade to the hub, the at least one pitch bearing comprising at least an inner ring and an outer ring;
- wherein the wind turbine further comprises at least a tensioning system disposed at least partially on the outer ring of the at least one pitch bearing exerting a radial compression force to at least a part of the outer ring of the at least one pitch bearing;
- wherein the outer ring comprises a flat surface proximate to the at least one blade and a flat surface proximate to the hub;
- wherein the tensioning system comprises at least one tensioning element at least partially surrounding the outer ring;
- wherein at least 50% of the at least one tensioning element is located more proximate to the flat surface proximate to the blade than to the flat surface proximate to the hub.
5 more elements
A wind turbine comprising:
- a hub;
- at least one blade;
- and
- at least one pitch bearing to connect the at least one blade to the hub, the at least one pitch bearing comprising at least an inner ring and an outer ring;
- wherein the wind turbine further comprises at least a tensioning system disposed at least partially on the outer ring of the at least one pitch bearing exerting a radial compression force to at least a part of the outer ring of the at least one pitch bearing;
- wherein the outer ring comprises a flat surface proximate to the at least one blade and a flat surface proximate to the hub;
- wherein at least 50% of the height of the outer ring covered by the tensioning system is located more proximate to the flat surface proximate to the blade than to the flat surface proximate to the hub.
4 more elements
A wind turbine comprising:
- a hub;
- at least one blade;
- and
- at least one pitch bearing to connect the at least one blade to the hub, the at least one pitch bearing comprising at least an inner ring and an outer ring;
- wherein the wind turbine further comprises at least a tensioning system disposed at least partially on the outer ring of the at least one pitch bearing exerting a radial compression force to at least a part of the outer ring of the at least one pitch bearing;
- wherein the outer ring comprises a flat surface proximate to the at least one blade and a flat surface proximate to the hub;
- wherein an area of the lateral surface of the outer ring covered by at least 50% of the tensioning system is located closer to the flat surface proximate to the blade than to the flat surface proximate to the hub.
4 more elements
A wind turbine comprising:
- a hub;
- at least one blade;
- and
- at least one pitch bearing to connect the at least one blade to the hub, the at least one pitch bearing comprising at least an inner ring and an outer ring;
- wherein the wind turbine further comprises at least a tensioning system disposed at least partially on the outer ring of the at least one pitch bearing exerting a radial compression force to at least a part of the outer ring of the at least one pitch bearing;
- wherein the outer ring comprises a flat surface proximate to the at least one blade and a flat surface proximate to the hub;
- wherein the tensioning elements are located along at least 20% of the height of the outer ring.
4 more elements
A wind turbine comprising:
- a hub;
- at least one blade;
- and
- at least one pitch bearing to connect the at least one blade to the hub, the at least one pitch bearing comprising at least an inner ring and an outer ring;
- wherein the wind turbine further comprises at least a tensioning system disposed at least partially on the outer ring of the at least one pitch bearing exerting a radial compression force to at least a part of the outer ring of the at least one pitch bearing;
- wherein the outer ring comprises a flat surface proximate to the at least one blade and a flat surface proximate to the hub;
- wherein the tensioning system covers at least 50% of the outer surface of the outer ring that is more proximate to the flat surface proximate to the blade than to the flat surface proximate to the hub.
4 more elements
Dependencies are inferred from the claim text.