Siemens Gamesa Renewable Energy A/s

Vujadin Petronic

Niels Karl Frydendal

Edom Demissie

Morten Soerensen

Søren Poulsen

Frank Bak

Kim Thomsen

Morten Thorhauge

Edom Lemma

Jan Soendergaard Pedersen

A sealing arrangement of a wind turbine is provided including an axial seal, a stationary member and a generator rotor for sealing a gap between the stationary member and the generator rotor. Accordingly, the stationary member is arranged between a lubricant chamber and an air chamber and the generator rotor is configured to rotate about a rotational axis, wherein the seal is arranged at an end of the stationary member. The seal includes a first lip configured to contact the generator rotor and the first lip is configured to allow a leakage of lubricant at the contact between the first lip and the generator rotor. The seal further includes a second lip arranged radially outwards with respect of the first lip and the rotational axis.

Axial seal for a generator rotor of a wind turbine

Provided is a grease collection arrangement for collecting waste grease from a grease lubricated rotor blade pitch bearing of a wind turbine, whereby the grease collection arrangement includes at least one waste grease collector and multiple extraction tubes, wherein each one of the multiple extraction tubes is connected to the at least one waste grease collector and the multiple extraction tubes are configured to being connected to multiple grease outlets of the rotor blade pitch bearing, whereby the grease collection arrangement is configured such that the waste grease from the rotor blade pitch bearing can flow into the at least one waste grease collector by gravity and centrifugal forces.

Grease collection arrangement for collecting waste grease from a grease lubricated rotor blade pitch bearing of a wind turbine

Provided is a bearing unit for a rotor unit of a wind turbine, including a first bearing ring, a second bearing ring, a plurality of rolling elements and a sealing member including a sealing member base portion, a first sealing member tip portion and a second sealing member tip portion, wherein the first sealing member tip portion abuts a first wall of the first bearing ring and the second sealing member tip portion abuts a second wall of the bearing unit, wherein the sealing member is configured and arranged such that a first contact pressure between the first sealing member tip portion) and the first wall is transmitted through the sealing member to the second sealing member tip portion to increase a second contact pressure between the second sealing member tip portion and the second wall. Also provided is a wind turbine.

Bearing unit for a rotor unit of a wind turbine and wind turbine

A bearing arrangement for a wind turbine including a bearing housing and a drive shaft, whereby the drive shaft is arranged within the bearing housing in an axial direction along a longitudinal axis of the bearing housing, the bearing arrangement further comprising a downwind bearing and an upwind bearing as radial fluid bearings, whereby the downwind bearing and the upwind bearing are arranged between the bearing housing and the drive shaft is provided. The downwind bearing and/or the upwind bearing includes a lubricant flooded chamber, in which multiple radial bearing pads are arranged about the drive shaft, whereby the lubricant flooded chamber is sealed against the drive shaft, an internal space of the bearing housing and an outside of the bearing housing is also provided.

Bearing arrangement for a wind turbine and wind turbine

Provided is a bearing arrangement for a wind turbine including a bearing housing and a drive shaft, whereby the drive shaft is arranged within the bearing housing in an axial direction along a longitudinal axis of the bearing housing. The bearing arrangement further includes a downwind bearing and an upwind bearing, whereby the downwind bearing and the upwind bearing are arranged between the bearing housing and the drive shaft. The bearing housing includes a drain outlet arranged in a bottom part of the bearing housing, the bottom part of the bearing housing being located underneath the drive shaft in a direction of gravity, whereby at least one inner side of the bottom part of the bearing housing is arranged so as to form a funnel, whereby the drain outlet is an opening of the formed funnel.

Growing community of inventors

Brande, Denmark

Vujadin Petronic