Patent application number | Description | Published |
20080260545 | Variable Capacity Oil Pump - The invention relates to a wind turbine being provided with a fluid displacement means for ensuring a certain increased pumping capacity at a certain reduced rotational speed of the main shaft of the rotor and thus of a drive shaft from a gear box of the wind turbine. The invention also relates to a wind turbine being provided with fluid displacement means for ensuring a certain increased pumping capacity at a certain increased rotational speed of the main shaft of the rotor and thus of a drive shaft from a gear box of the wind turbine. The means may be mechanical, hydraulic, pneumatic or electrical. Additionally, the invention relates to a method for operating a wind turbine being provided with such fluid displacement means. | 10-23-2008 |
20080279686 | Wind Turbine Comprising At Least One Gearbox And An Epicyclic Gearbox - The invention relates to a wind turbine comprising at least one gearbox. The gearbox comprises one or more sensors for measuring condition values of the wind turbine, and is characterized in that the one or more sensors are mounted on one or more rotating parts of the gearbox. The invention further relates to an epicyclic gearbox comprising a gearbox housing, one or more gearbox parts rotating in relation to the housing, and one or more sensors for measuring condition values of the gearbox. The epicyclic gearbox is characterized in that, the one or more sensors are mounted on one or more of the rotating parts of the gearbox. | 11-13-2008 |
20090081026 | METHOD AND SYSTEM FOR MONITORING FLUID LEVELS IN WIND TURBINE COMPONENT SYSTEMS - The invention relates to a wind turbine comprising a system for monitoring at least one wind turbine component including a closed fluid circulating system with a fluid reservoir. The monitoring system comprises, means for establishing a level value of the fluid systems reservoir, and means for establishing at least one environmental value of the fluid systems reservoir or the surroundings of the system. The level value and the at least one environmental value contributing to defining the fluid systems functionality, and the monitoring system further comprises means for establishing a monitoring value on the basis of the level value and the at least one environmental value. | 03-26-2009 |
20090221397 | Gear System for a Wind Turbine - A gear system ( | 09-03-2009 |
20100179011 | LUBRICATION SYSTEM FOR A GEARBOX AND WIND TURBINE - The invention relates to a lubrication system for a gearbox ( | 07-15-2010 |
20100201128 | Wind Turbine, A Method For Coupling A First Drive Train Component Of The Drive Train Of A Wind Turbine To A Second Drive Train Component Of The Drive Train And Use Of A Wind Turbine - A wind turbine including a drive train. The drive train includes at least a rotor for transforming wind into rotation of a rotor hub, to provide a drive torque, a generator for transforming at least a part of the drive torque into electrical power, and at least one coupling for connecting a first drive train component to a second drive train component for transferring the drive torque between the components. The coupling includes a first coupling part with a first coupling area, the first coupling area being connected with a second coupling area of a second coupling part, whereby the drive torque is transferred from one of the areas to the other of the areas during operation of the coupling. | 08-12-2010 |
20100202871 | Gearbox For A Wind Turbine, A Method Of Converting Wind Energy And Use Of A Gearbox - A gearbox for a wind turbine. The gearbox includes at least one first epicyclical gear stage, at least one second gear stage, and a torque transferring shaft including a shaft part and a connection part, wherein the torque transferring shaft is adapted for connecting a first gear of the first epicyclical gear stage with a second gear of the second gear stage and wherein the torque transferring shaft is connected to the second gear stage via the connection part to form a torque-transferring connection area between the connection part and the second gear stage and wherein the outer diameter of the shaft part of the torque transferring shaft is smaller than an inner diameter of the connection area between said torque transferring shaft and said second gear stage. | 08-12-2010 |
20100202885 | Epicyclic Gear Stage For A Wind Turbine Gearbox, A Wind Turbine Gearbox And A Wind Turbine - An epicyclic gear stage for a wind turbine gearbox including a sun gear, at least two planet gears, engaged with the sun gear, an annulus gear, a first planet carrier flange connected to one side of at least two of the planet gears, and a second planet carrier flange connected to the other side of least two of the planet gears. Torque from the wind turbine rotor is transferred via a torque transfer part connected to at least one of the first and second planet carrier flanges at one or more torque transferring zones and the one or more torque transferring zones are located between a first and a second plane, the planes being substantially perpendicular to an axis of rotation of the sun gear. | 08-12-2010 |
20130195632 | WIND TURBINE WITH BEARING SUPPORT - In order to provide a wind turbine generator with a shaft and a bearing system which bearing system, e.g., using less material or using material which is relatively cheaper or which is not needed to have the same strength in comparison with some other solutions, there is disclosed a wind turbine generator with a bearing system including a lockable connection comprising a bearing surface and a support surface which surfaces are engaged when the lockable connection is locked and where forces from the shaft are transferred via the bearing and into the support through the bearing surface and wherein a support angle of the support surface, relatively to a shaft plane formed by rotating the shaft around a first axis, which first axis is perpendicular to the centre axis and which first axis is comprised in a vertical plane, is ranging from and including 5 degrees to and including 70 degrees. | 08-01-2013 |
20130270837 | WIND TURBINE POWER TRANSMISSION SYSTEM - A power transmission system for a wind turbine comprises a gearbox and generator. The gearbox includes a gearbox housing and gearbox output member. The generator includes: a generator housing having a drive-end side and non-drive-end side, the drive-end side being coupled to the gearbox housing; a stator supported by the generator housing; a rotor having a rotor shaft coupled to the gearbox output member and a rotor body coupled to the rotor shaft; a non-drive-end shield coupled to the non-drive-end side; a spindle extending from the non-drive-end shield in the axial direction; and at least one generator bearing positioned between the rotor shaft and spindle. The generator bearing(s) support the gearbox output member and rotor shaft. A method of assembling or servicing such a power transmission system is also provided. | 10-17-2013 |
20130288843 | MACHINE SYSTEM HAVING A LUBRICATION SYSTEM - The present invention relates to a machine system comprising a machine having at least a first section and a second section, the first section having a first velocity and the second section having a second velocity, the second velocity being different from the first velocity, and a lubrication system comprising at least one tank having one lubricant, the lubrication system being connected to the first and second sections. Furthermore, the invention relates to a wind turbine comprising the machine system. | 10-31-2013 |
20130302144 | WIND TURBINE POWER TRANSMISSION SYSTEM - A power transmission system for increasing the rotational speed from a rotor of a wind turbine comprises a main shaft configured to be driven by the rotor, a support structure, and a gearbox. The support structure includes at least one bearing supporting the main shaft for rotation about the main axis, with no other degrees of freedom between the main shaft and support structure. The gearbox includes a gearbox housing rigidly coupled to the support structure and a gearbox input member coupled to the main shaft. The gearbox housing supports the gearbox input member for rotation about the main axis without any other degrees of freedom, and the gearbox input member is coupled to the main shaft with translational degrees of freedom in all directions and rotational degrees of freedom about axes perpendicular to the main axis. | 11-14-2013 |
20130336766 | ROTATING SYSTEM FOR A WIND TURBINE - A rotating system ( | 12-19-2013 |
20140327243 | WIND TURBINE GENERATOR WITH ADAPTIVE LOCKED SPEED OPERATION - An adaptive wind turbine generator (WTG) control system comprising a measurement system MS with sensors A1, A2, MC arranged to perform measurements of mechanical vibrations of one or more mechanical components of the WTG, at a plurality of operating conditions for the WTG. A storage unit SU stores, in a measurement database MD, measured data and corresponding operating condition OC data for the WTG. An operating condition manager OCM determines how to operate the WTG, including rotor speed PSC, according to a control algorithm in response to the data stored in the measurement database MD. Hereby, individual vibration measurements on critical components such as electric power generator and blades of the WTG can be taken into account in determining which rotor speed windows to avoid. This allow a more power efficient WTG, since a large safety margin around calculated or predetermined tabulated rotor speed windows can be avoided. Further, with a continuous update of the measurements, the control system can take into account variations in the vibration behaviour of the components over time. | 11-06-2014 |