A hybrid shaft bearing, a wind generator comprising the hybrid shaft bearing, a use of the hybrid shaft bearing, and a method of operating the hybrid shaft bearing is provided. The hybrid shaft bearing comprises a hydrodynamic friction bearing and a rolling bearing. Both the hydrodynamic friction and rolling bearings cooperate with a support structure and rotatably support a shaft. The hydrodynamic friction bearing is a passive hydrodynamic bearing.
F16C 21/00 - Combinations of sliding-contact bearings with ball or roller bearings, for exclusively rotary movement
F16C 17/10 - Sliding-contact bearings for exclusively rotary movement for both radial and axial load
F16C 17/20 - Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with emergency supports or bearings
F16C 19/36 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
F16C 19/38 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
2.
A STATOR FOR A GENERATOR AND A FLUX SWITCHING MACHINE FOR A WIND TURBINE
A stator (16) for a generator (10) of a wind turbine is provided, the stator (16) comprising a magnetic frame (18), magnets (36) and magnetic sections (28) spaced from each other. The magnets (36) are used to fasten the magnetic sections (28) to the frame (18). Further, a flux switching machine (10) for a wind turbine, in particular a generator for a wind turbine, is provided, the flux switching machine (10) comprising a rotor (12) and a stator (16).
H02K 21/44 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with rotating flux distributors, and armatures and magnets both stationary with armature windings wound upon the magnets
H02K 7/18 - Structural association of electric generators with mechanical driving motors, e.g.with turbines
3.
A METHOD FOR EARLY ERROR DETECTION IN A DRIVE SYSTEM, A SYSTEM FOR EARLY ERROR DETECTION, WIND GENERATOR COMPRISING THE SYSTEM AND US OF THE SYSTEM
A system for early error detection in a drive system of a wind generator is provided. The system comprises a first rotation sensor, which is coupled to an input shaft of the drive gear or transmission stage. This first sensor captures an input angle of rotation. Furthermore, the system comprises a second rotation sensor, which is coupled to an output shaft of the drive gear or transmission stage. The output angle, which is acquired by the second sensor, represents an output of the drive gear or transmission stage, which is performed in response to the input angle. The system also includes a control unit, which is configured to simultaneously capture a first and a second time dependent signal, which are indicative of the input angle and the output angle, respectively. The control unit is configured to determine a time dependent angle difference from the first and the second signal under consideration of the transmission ratio of the drive gear or transmission stage. Furthermore, the control unit analyzes this time dependent angle difference so as to perform early error detection in the drive system.
The invention relates to an air duct for a wind power plant configured to guide air along a circumference of a supporting structure, in particular a tower, of the wind power plant. The invention also relates to a wind power plant with an air guide and to methods of manufacturing an air guide for a wind power plant and retrofitting a wind power plant with an air guide.
Working platform (6) and offshore wind energy plant (2) comprising a working platform (6), wherein the working platform (6) is configured to be mounted to an outside wall (16) of the tower (4) of the offshore wind energy plant (2) by help of welded joints.
E02B 17/00 - Artificial islands mounted on piles or like supports, e.g. platforms on raisable legsConstruction methods therefor
F03D 1/00 - Wind motors with rotation axis substantially parallel to the air flow entering the rotor
B23K 31/02 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups relating to soldering or welding
E02B 17/02 - Artificial islands mounted on piles or like supports, e.g. platforms on raisable legsConstruction methods therefor placed by lowering the supporting construction to the bottom, e.g. with subsequent fixing thereto
E04H 12/34 - Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like
A tool (10) for handling a long and heavy object (12), in particular a wind turbine rotor blade, comprises a clamping unit which can be fixed to the rotor blade. The clamping unit has a first clamp (14) and a second clamp (16) spaced from the first clamp (14) with respect to the longitudinal direction of the object. A first rod unit (20) is rotatably coupled to the first clamp (14) of the clamping unit at a first coupling site and coupled to a traverse (32). A second rod unit (22) is rotatably coupled to the second clamp (16) of the clamping unit at a second coupling site and coupled to the traverse (32) by means of a rope (34). The length of the rope section between the second rod unit (22) and the traverse (32) being adjustable by a winch (36).
F03D 1/00 - Wind motors with rotation axis substantially parallel to the air flow entering the rotor
B66C 1/10 - Load-engaging elements or devices attached to lifting, lowering, or hauling gear of cranes, or adapted for connection therewith for transmitting forces to articles or groups of articles by mechanical means
HYBRID SHAFT BEARING WITH A HYDRODYNAMIC BEARING AND A ROLLING BEARING, WIND GENERATOR COMPRISING A HYBRID SHAFT BEARING, USE OF THE HYBRID SHAFT BEARING AND METHOD OF OPERATING THE HYBRID SHAFT BEARING
Hybrid Shaft Bearing, Wind Generator Comprising a Hybrid Shaft Bearing, Use of the Hybrid Shaft Bearing and Method of Operating the Hybrid Shaft Bearing. A hybrid shaft bearing (20), a wind generator comprising this hybrid bearing (20), use of the hybrid bearing (20) and a method of operating the hybrid bearing (20) is provided. The hybrid shaft bearing (20) comprises a hydrodynamic journal bearing (22) and a rolling bearing (24). Both bearings (22, 24) cooperate with a support structure (26) and rotatably support a shaft (28). To avoid contact between the sliding surfaces (73, 75) of the hydrodynamic bearing (22) the auxiliary rolling bearing (24) carries the load at low speed, e.g. during start-up and shut-down periods, by ensuring a minimum lubricating gap (71). The hydrodynamic bearing (22) takes over the bearing load when a certain speed of rotation is reached. Active supply of lubricant to operate the journal bearing (22) as hydrostatic bearing at low speed is not required. The bearings (22, 24) may be arranged in paralel or in series.
F16C 17/20 - Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with emergency supports or bearings
F16C 21/00 - Combinations of sliding-contact bearings with ball or roller bearings, for exclusively rotary movement
F16C 17/10 - Sliding-contact bearings for exclusively rotary movement for both radial and axial load
F16C 19/38 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
8.
TEST UNIT FOR QUANTITATIVE ANALYSIS OF A CONTACT PATTERN ON A TOOTH SURFACE OF A GEAR, METHOD FOR QUANTITATIVE ANALYSIS AND USE OF THE TEST UNIT
A test unit for quantitative analysis of a contact pattern and a method for quantitative analysis are provided. The test unit comprises an optoelectronic sensor for capturing images of contact pattern paint on a tooth surface of a gear. Furthermore, the test unit comprises a control unit, which is configured for determining and storing a first distribution of an optical parameter of the contact pattern paint across the tooth surface, from the first image. This is captured prior to testing of the gear. After the tooth surface was exposed to a test load, a second image is captured and a second distribution of the optical parameter is determined. The control unit is configured to perform a quantitative analysis of a contact pattern on the tooth surface by determining a deviation between the first and the second distribution of the optical parameter.
A bidirectional bearing (30), a drive train, a planetary gear and a wind generator having a bidirectional bearing are provided. The bidirectional bearing comprises a outer bearing shell (32) having a first intermediate bearing shell (34), which is coupled to the shaft (40) and which cooperates with the outer bearing shell. The bidirectional bearing further comprises a second intermediate bearing shell (36), which is arranged opposite to the outer bearing shell with respect to the first intermediate bearing shell. The second intermediate bearing shell is configured to take up a first load having a first direction (D1) from the first intermediate bearing shell. Furthermore, the first second intermediate bearing shell is configured to receive a second load having a second direction (D2), which is substantially opposite to the first direction. The first intermediate bearing shell receives said second load from the second intermediate bearing shell and is configured to transfer this second load to the outer bearing shell.
A planetary gear and a wind generator, in particular an off-show wind generator, comprising this planetary gear is provided. The planetary gear comprises a drive wheel engaging a transmission stage having first planetary gears, which are coupled to a number of second planet gears being axially displaced with respect to the first planet gears. The second planet gears engage a sun wheel, which is coupled to a driven shaft. The drive wheel is a hollow wheel having an internal gear. The second planet gears are divided into a first subset and a second subset of gears. The two subsets of gears are arranged in two separate planes being spaced from each other in an axial direction. Furthermore, the second planet gears of the first subset are arranged inside an interior space of the drive wheel.
A planetary gear, a wind generator having a planetary gear and the use of the planetary gear is provided. A planetary gear having a driving or driven wheel engaging a transmission stage having first planet gears, which are coupled to a corresponding number of second planet gears being axially displaced with respect to the first planet gears, wherein the second planet gears engage gears of at least one sun wheel coupled to a driven or driving shaft, characterized in that the second planet gears are divided into a first subset and a second subset of gears, which are arranged in two separate planes being spaced from each other in an axial direction, wherein the first planet gears of the first subset are coupled to their corresponding second planet gears using first shafts and the first planet gears of the second subset are coupled to their corresponding second planet gears using second shafts, wherein the first shafts have a first length and the second shafts have a second length, and wherein the first length differs from the second length.
A tool for mounting rotor blades on a rotor hub, an offshore construction device and a method of assembling a wind generator is provided. The tool comprises a first part and a second part, wherein the first part is configured to be mounted on a base plane of a mounting device. The second part may be configured to receive a shaft flange of the rotor hub. The second part of the tool may be rotatable with respect to the first part.
A wind turbine includes a tower, the tower having an upper part, a middle part and a lower part. The lower and the middle part of the tower form the base of the tower, waste heat generating equipment located in the middle part of the tower, and a cooling device with at least one cooling device inlet formed in the tower for introducing outside air surrounding the tower into the tower. The cooling device is adapted to guide the outside air from each cooling device inlet into the lower part of the tower such that the outside air can ascend towards the middle part and upper part of the tower while cooling the waste heat generating equipment. each cooling device inlet is located in the upper part of the tower.
F03D 9/00 - Adaptations of wind motors for special useCombinations of wind motors with apparatus driven therebyWind motors specially adapted for installation in particular locations
F03D 80/00 - Details, components or accessories not provided for in groups
A tool (24) and a method for aligning a pair of adjacent flanges (10,12) of adjacent segments (2,4) of a supporting structure of a wind generator are provided. The tool (24) comprises a pulling member (26) having a first end (34) comprising a substantially flat contact surface (38) and a spigot (36) which projects from the contact surface (38) so as to engage a mounting aperture (18) of a first flange (10) of a pair of flanges (10,12) of adjacent segments (2,4) of the supporting structure. Furthermore, the tool (24) comprises a lever (28) which is pivotably coupled to the pulling member (26) at a joint (30) which is arranged at a second end (44) of the pulling member (26). The lever (28) comprises a first arm (56) and a second arm (58) having a first length and a second length, wherein the first length is greater than the second length. The lever (28) and the pulling member (26) are configured to define a distance between the contact surface (38) of the pulling member (26) and the second end (50) of the lever (28), when the spigot (36) resides in the mounting aperture (18) of the first flange (10). Said distance is arranged in that the second end (50) of the lever (28) contacts an inner surface (70) of a second flange (12) of the pair of flanges (10,12).
A section of a supporting structure of a wind generator, a wind generator and a method of assembling a section of a supporting structure of a wind generator are provided. The supporting structure of the wind generator comprises a plurality of sections. Modules of a sub-system of a wind generator are arranged on platforms of a multi-stage platform packet. The platform packet is arranged in an interior space of the section and the platform packet is mounted on the section.
A lifter (2) for handling a rotor blade (4), a method of operating a lifter (2) and a system comprising a lifter (2) and a rotor blade (4) is provided. The lifter comprises at least one device, in particular a grabbing jaw (6), for contacting an outer surface of the rotor blade (4). The lifter may further comprise a non-optical wave based system for detecting a position of the rotor blade (4) with respect to the lifter (2).
B66C 1/10 - Load-engaging elements or devices attached to lifting, lowering, or hauling gear of cranes, or adapted for connection therewith for transmitting forces to articles or groups of articles by mechanical means
F03D 1/00 - Wind motors with rotation axis substantially parallel to the air flow entering the rotor
17.
DEVICE FOR SPACING A HUB FLANGE AND A BLADE FLANGE, SYSTEM COMPRISING A ROTOR HUB, A ROTOR BLADE AND A DEVICE FOR SPACING AND METHOD OF INSTALLING A ROTOR BLADE ON A ROTOR HUB
A device (2) for spacing a hub flange (28) of a rotor hub (26) of a wind generator from a blade flange (48) of a rotor blade during installation of the rotor blade (46) on the rotor hub (26) is provided. The device (2) for spacing comprises a distance member (4) to finding a clearance between the hub flange (28) and blade flange (48). The distance member (4) is configured for variable adjustment of the clearance between the hub flange (28) and the rotor flange.
LIFTER AND METHOD FOR HANDLING A ROTOR BLADE, ROTOR BLADE FOR A WIND GENERATOR AND METHOD FOR MARKING A ROTOR BLADE, SYSTEM COMPRISING A LIFTER AND A ROTOR BLADE
A lifter (2) and a method for handling of a rotor blade (16) of a wind turbine are provided. Furthermore, a rotor blade (16) for a wind generator and a method for marking the rotor blade (16) and a system comprising a rotor blade (16) and a lifter (2) are provided. The lifter (2) comprises at least one grabbing jaw (81, 82) having a pair of arms (81a, 81b, 82a, 82b) carrying pads (10) for contacting an outer surface of the rotor blade (16) in predetermined grabbing areas (20). Furthermore, the lifter (2) comprises a detector (14) for visual inspection of an invisible mark on a surface (18) of the rotor blade (16). The at least one mark indicates a position of the at least one grabbing area (20).
B66C 13/46 - Position indicators for suspended loads or for crane elements
F03D 1/00 - Wind motors with rotation axis substantially parallel to the air flow entering the rotor
B66C 1/10 - Load-engaging elements or devices attached to lifting, lowering, or hauling gear of cranes, or adapted for connection therewith for transmitting forces to articles or groups of articles by mechanical means
19.
GUIDING SYSTEM FOR GUIDING A ROOT OF A ROTOR BLADE DURING INSTALLATION AND METHOD OF MOUNTING A ROTOR BLADE ON A ROTOR HUB OF A WIND GENERATOR
A guiding system for guiding a root of a rotor blade having a blade flange during installation of the rotor blade on a rotor hub of a wind generator is provided. The guiding system comprises at least one guiding tip which is configured to be non-permanently fixed on a free end of one of the bolts which reside in the blade flange. The bolts extend outwards the rotor blade and a dimension of the guiding tip, which is considered in a direction which is substantially perpendicular to a length extension of said bolts and in a status when the guiding tip is mounted on the bolt is greater than a diameter of a screw thread of the bolt. Furthermore, a method of mounting a rotor blade on a rotor hub is provided.
A hatch cover is provided for a hatch of a nacelle for a wind driven power plant. The hatch cover includes several segments configured to remain within a hatch opening when a hatch is in an open position.
E06B 9/06 - Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type
F03D 80/00 - Details, components or accessories not provided for in groups
F03D 13/20 - Arrangements for mounting or supporting wind motorsMasts or towers for wind motors
21.
Wind power installation with helicopter hoisting platform
A wind power installation includes a helicopter hoisting platform configured to be arranged on top of a nacelle of a wind driven power plant. The nacelle and the helicopter platform are configured such that a bottom surface of the helicopter hoisting platform is below a top surface of the nacelle.
The invention relates to an assembly and a method of fixing a rotor blade of a wind power plant. The wind power plant comprises a rotor blade, a pitch adjustment means, a bearing for the rotor blade and a brake disk. There is an electro-mechanical brake configured to apply a controlled brake force to the brake disk that is a function of the pitch angle of the rotor blade.
Working platform (6) and offshore wind energy plant (2) comprising a working platform (6), wherein the working platform (6) is configured to be mounted to an outside wall (16) of the tower (4) of the offshore wind energy plant (2) by help of welded joints.
E04G 3/24 - Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons
24.
WIND TURBINE TOWER WITH CIRCUMFERENTIAL AIR GUIDING TOWER WALL REINFORCEMENT
A wind turbine tower (1 ) comprising a tower wall (60), at least one inlet (3) formed in a section (S) of the tower wall for introducing air (10) surrounding the wind turbine tower into the wind turbine tower, and a tower wall reinforcement (5), the tower wall reinforcement bracing the inner circumference of said tower wall section (S), and the tower wall reinforcement (5) defining an air duct (40) for guiding the air along the inner circumference of said tower wall section (S).
A wind turbine (1) comprising a tower (100), the tower having an upper part (4), a middle part (6) and a lower part (8), the lower and the middle part of the tower forming the base (9) of the tower, waste heat generating equipment (14) located in the middle part of the tower, and a cooling device (16) with at least one cooling device inlet (22) formed in the tower for introducing outside air (10) surrounding the tower into the tower, wherein the cooling device (16) is adapted to guide the outside air from the or each cooling device inlet (22) into the lower part (8) of the tower such that the outside air can ascend towards the middle part (6) and upper part (4) of the tower while cooling the waste heat generating equipment (14), characterised in that the or each cooling device inlet (22) is located in the upper part (4) of the tower (100).
The invention relates to a method and an arrangement for avoiding stray currents in a wind power plant. There is an insulating power source (1) having a galvanic decoupled secondary side (3), an electrical load (8) coupled to the secondary side of the insulating power source through an electrical conductor (5, 6) and a stray current sensitive mechanical component (7) of the wind power plant. The insulating power source is located at a first side of the stray current sensitive mechanical component and the load is located at a second side of the stray sensitive mechanical component. The electrical conductor is coupled to a common ground potential (10) at the second side.
A wind turbine blade pitch angle adjusting apparatus (1) for adjusting the pitch angle of a blade of a wind turbine, comprising: an electric pitch motor (M) able to output a maximum motor torque Tm; and a pitch brake assembly (7) able to generate a maximum brake assembly torque Tb; characterised in that: the pitch brake assembly (7) comprises a plurality of individual pitch brakes (11, 12) each able to generate a maximum individual brake torque Tsb, the maximum brake assembly torque Tb is the sum of all maximum individual brake torques Tsb, and the maximum motor torque Tm is higher than the maximum individual brake torque Tsb of any one of the pitch brakes.
The present invention relates to a hatch cover for a hatch of a nacelle for a wind driven power plant. The hatch cover includes several segments configured to remain within a hatch opening when the hatch is in an open position.
E06B 9/06 - Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type
29.
WIND POWER INSTALLATION WITH HELICOPTER HOISTING PLATFORM
The present invention relates to a wind power installation that includes a helicopter hoisting platform configured to be arranged on top of a nacelle of a wind driven power plant. The nacelle and the helicopter platform are configured such that the bottom surface of the helicopter hoisting platform is below the top surface of the nacelle.
The present invention relates to a hatch cover for a hatch of a nacelle for a wind driven power plant. The hatch cover includes several segments configured to remain within a hatch opening when the hatch is in an open position.
E06B 9/06 - Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type
F03D 11/00 - Details, component parts, or accessories not provided for in, or of interest apart from, the other groups of this subclass
31.
Paneling of a nacelle of a wind energy installation
A paneling (30) of a nacelle (12) of a wind energy installation (10), in which an upturned panel ceiling (40) is provided in installation position, is created with a hatch opening (46), that is provided in the panel ceiling (40). The hatch opening (46) is advantageously provided so large, that components of the entire area of a drive train (24) of the wind energy installation (10) can be removed upwards, or inserted from above into the nacelle (12) through the hatch opening (46). Furthermore, such a hatch opening (46) is choosingly closable by means of a hatch cover (44).
patents
