Siemens Gamesa Renewable Energy A/s

Siemens Aktiengesellschaft

Thyssen Krupp Ag

Thyssenkrupp Rothe Erde Germany Gmbh

Renk Aktiengesellschaft

Hydac A/s

Niels Karl Frydendal

Kim Thomsen

Morten Thorhauge

Troels Kanstrup

Edom Demissie

Gustav Hoegh

Bernd Lüneburg

Edom Lemma

Alejandro Cerda Varela

Dennis Olesen

Morten Soerensen

Vujadin Petronic

Frank Bak

Anders Vølund

Jörg Rollmann

Claus Michaelsen

Gunther Elfert

Thorsten Rohrmann

Peter Decker

Peter Loevenskjold Falkenberg

Janina Brencher

Jeppe Soee

Simone Angelo Santoro

Henrik Gyldenlev Mortensen

Søren Poulsen

Stephan Froning

Yevgeni Sharypkin

Björn Campe

Alejandro Cedra Varela

Jens Haugaard

A wind turbine includes a nacelle with a main bearing tilted with its rotation axis towards the horizontal axis and including an inner and outer ring, wherein the main bearing is a slide bearing and the inner ring is stationary while the outer ring rotates, with the main bearing being lubricated, and with the outer ring including a first and a second sealing means, wherein the first sealing means is due to the tilt of the main bearing lower than the second sealing means, wherein a stationary leakage lubrication fluid collection means is provided adapted for collecting lubrication fluid, wherein the outer ring is provided with one or more axial bores connecting a leakage lubrication fluid collection area to the leakage lubrication fluid collection means and wherein each sealing means includes a groove accommodating a sealing element and a sealing element carrier ring.

Wind turbine

A fluid film bearing for a rotor hub of a wind turbine is provided including a first part and a second part rotatably coupled to each other about a longitudinal axis. The first part includes an annular first sliding surface extending in the circumferential direction of the fluid film bearing along the first part. In addition, the second part includes a support structure and a first group of bearing pads coupled to the support structure and having a bearing pad sliding surface configured to slide on the first sliding surface. In addition, the support structure includes a plurality of openings for replacing the bearing pads.

Fluid film bearing comprising bearing pads and method of replacing bearing pads

A fluid film bearing for a rotor hub of a wind turbine includes a first part and a second part rotatably coupled to each other about a longitudinal axis. The first part includes an annular first sliding surface extending in the circumferential direction of the fluid film bearing along the first part. In addition, the second part includes a support structure and a first group of bearing pads coupled to the support structure and having a bearing pad sliding surface configured to slide on the first sliding surface. In addition, the fluid film bearing further includes a seal arranged between the first part and the second part.

CLEAN A wind turbine () with a rotor bearing () is proposed, wherein drainage chambers () on both sides of the rotor bearing () are connected to each other via a plurality of channels () traversing an outer ring () of the rotor bearing (), which are distributed over the circumference of the outer ring () and that an axis (A) of the rotor bearing () is arranged at an angle in the range of 2° toto the horizontal line (H) for promoting a flow of leakage oil through the channels ().

Wind turbine with a rotor bearing having channels

A fluid film bearing, includes a first and second part, wherein the first part includes at least two annular sliding surfaces, wherein the second part includes a respective group of pads for each of the annular sliding surfaces, wherein a respective pad sliding surface of each pad in a respective group supports the respective annular sliding surface, wherein the pads of each group are distributed in the circumferential direction along the second part, wherein at least one pad of a selected one of the groups is arranged such that spacing of the pads in the selected group along the circumference is irregular and/or wherein the selected or a selected one of the groups includes two different types of pads and/or wherein the pads of the or a selected one of the groups are offset in the circumferential direction with respect to the pads of a further one of the groups.

Fluid film bearing, especially for a rotor hub in a wind turbine

A method for replacing a sliding pad of a rotational sliding bearing, wherein the bearing includes a plurality of sliding pads each supporting an annual rotatable part of the bearing on a stationary part of the bearing in an axial direction and/or a radial direction, including the steps: removing a load of the rotatable part from the sliding pad to be removed by releasing a force applied to the sliding pad and/or by applying a force to the rotatable part, removing the sliding pad in an axial and/or a radial direction, inserting a replacement sliding pad, supporting the rotatable part on the replacement sliding pad by applying a force to the replacement sliding pad and/or by removing the force applied to the rotatable part.

Method for replacing a sliding pad of a rotational sliding bearing, sliding bearing and wind turbine

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 bearing for a wind turbine, including a first and a second ring arranged radially to each other with one ring rotating relative to the other ring around an axis of rotation. The first ring has a cylindrical ring section and a collar extending radially from the ring section. The collar has an axial support area supporting axial bearing elements, wherein several pretension elements creating compressive stress are fixed to the first ring in the section where the collar extends from the ring section.

Bearing for a wind turbine, wind turbine comprising a bearing and method for producing a bearing ring

Provided is a main bearing for a wind turbine, including a stationary ring and a rotating ring to be coupled to a rotor, whereby the main bearing is a fluid film bearing including several bearing units arranged at the stationary ring around the circumference on both sides of the rotating ring, for radially and axially bearing the rotating ring, and further including a load measurement arrangement for determining measurement data which are a measure for the load applied to or resting on at least one of the axial or radial bearing units.

Main bearing for a wind turbine

Provided is a fluid film bearing, especially for a rotor hub in a wind turbine, including an inner part that supports a rotating outer part, wherein the inner part includes multiple radial pads distributed along the outer circumference of the inner part, each of the radial pads having at least one radial pad sliding surface, wherein the radial pad sliding surfaces support at least one outer part sliding surface of the outer part in the radial direction.

Fluid film bearing and wind turbine

Provided is a fluid film bearing, for a rotor hub in a wind turbine, including a first and second part rotatably connected to each other, wherein the first part forms a first annular sliding surface that extends in the circumferential direction of the bearing along the first part, wherein the second part includes a support structure and first pads distributed along the circumference of the support structure, wherein a respective pad sliding surface of each of the first pads or of a first subgroup of the first pads supports the first annular sliding surface, wherein each first pad includes a mounting section that is mounted to a backside of the support structure, a contact section that is either forming the respective pad sliding surface or carrying a coating that forms the respective pad sliding surface and a connecting section that connects the contact section with the mounting section.

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 including 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, wherein the downwind bearing and/or the upwind bearing is a radial fluid bearing including multiple radial bearing pads, whereby each one of the multiple radial bearing pads is attached to one of a multiple radial bearing bodies of the radial fluid bearing and the multiple radial bearing pads are arranged about the drive shaft.

A fluid bearing for a wind turbine including a bearing housing, a plurality of bearing pads inside the bearing housing and circumferentially distributed around a longitudinal axis of the fluid bearing, a plurality of supporting structures, each supporting structure having at least a first interface detachably connected to a respective seat provided in the bearing housing and at least a second interface detachably connected to a respective bearing pad of the plurality of bearing pads, the supporting structure including an elastomer allowing tilting of the respective bearing pad parallel to the longitudinal axis, the elastomer being interposed between the respective seat and the respective bearing pad is provided.

Fluid film bearing for a 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

Herning, Denmark

Niels Karl Frydendal