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CPC
COOPERATIVE PATENT CLASSIFICATION
F03D
WIND MOTORS [2018-05]
NOTES

  • This subclass covers wind motors, i.e. mechanisms for converting the energy of wind into useful mechanical power, and the transmission of such power to its point of use.
  • This subclass does not cover electrical power generation or distribution aspects of wind-power plants, which are covered by section H, e.g. H02J or H02P.
  • In this subclass, the following terms or expressions are used with the meanings indicated:
    • "rotor" means the wind-engaging parts of the wind motor and the rotary member carrying them;
    • "rotation axis" means the axis of rotation of the rotor.
F03D 1/00
Wind motors with rotation axis substantially parallel to the air flow entering the rotor  (controlling thereof F03D 7/02) [2023-08]
WARNING

F03D 1/02
.
having a plurality of rotors [2019-05]
F03D 1/025
. .
{coaxially arranged} [2019-05]
F03D 1/04
.
having stationary wind-guiding means, e.g. with shrouds or channels (F03D 9/35 takes precedence) [2023-08]
WARNING

F03D 1/041
. .
{Convergent inlets, i.e. the inlet section is greater than the rotor section (F03D 1/044 takes precedence)} [2023-08]
WARNING

F03D 1/042
. .
{Divergent outlets, e.g. diffusers or ejectors (F03D 1/044 takes precedence)} [2023-08]
WARNING

F03D 1/044
. .
{Convergent divergent structures, e.g. venturis} [2023-08]
WARNING

F03D 1/046
. .
{comprising additional flow modifying means, e.g. vanes or turbulators} [2023-08]
WARNING

F03D 1/048
. . .
{for changing the flow direction, e.g. a horizontal inlet and a vertical outlet} [2023-08]
WARNING

F03D 1/051
. .
{Multiple shrouds, e.g. in series or in parallel} [2023-08]
WARNING

F03D 1/053
. .
{comprising controllable elements, e.g. inlet valves or shutters} [2023-08]
WARNING

F03D 1/06
.
Rotors [2023-08]
WARNING

F03D 1/0601
. .
{using the Magnus effect} [2023-08]
F03D 1/0602
. .
{having rotating wind-guiding means, e.g. associated with the hub} [2023-08]
WARNING

F03D 1/0606
. . .
{Shrouds} [2023-08]
WARNING

F03D 1/0608
. .
{characterised by their aerodynamic shape} [2023-08]
WARNING

F03D 1/0625
(Frozen)
. . .
{of the whole rotor, i.e. form features of the rotor unit} [2023-08]
WARNING

  • Group F03D 1/0625 is no longer used for the classification of documents as of August 1, 2023.
    The content of this group is being reclassified into groups F03D 1/06, F03D 1/0602, F03D 1/0606 and F03D 1/0608.
    All groups listed in this Warning should be considered in order to perform a complete search.
F03D 1/0633
. . .
{of the blades} [2023-08]
WARNING

F03D 1/0641
. . . .
{of the section profile of the blades, i.e. aerofoil profile} [2023-08]
WARNING

F03D 1/0642
. . . .
{of the blade tip region} [2023-08]
WARNING

F03D 1/0643
. . . .
{of the leading edge region} [2023-08]
WARNING

F03D 1/0645
. . . .
{of the trailing edge region} [2023-08]
WARNING

F03D 1/0647
. . . .
{of the root or transition region} [2023-08]
WARNING

F03D 1/0648
. . . .
{of changeable form, e.g. comprising inflatable elements} [2023-08]
WARNING

F03D 1/0649
. . . .
{of the blade surfaces, e.g. roughened} [2023-08]
WARNING

F03D 1/06495
. . . .
{Aerodynamic elements attached to or formed with the blade, e.g. flaps, vortex generators or noise reducers} [2023-08]
WARNING

F03D 1/065
. .
{characterised by their construction elements (F03D 13/10 takes precedence)} [2023-08]
WARNING

F03D 1/0658
. . .
{Arrangements for fixing wind-engaging parts to a hub} [2023-08]
WARNING

F03D 1/066
. . . .
{Connection means therefor, e.g. bushings or adapters} [2023-08]
WARNING

F03D 1/0662
. . . .
{using kinematic linkage, e.g. tilt (bearing arrangements, pitch bearings F03D 80/70)} [2023-08]
WARNING

F03D 1/0664
. . . . .
{Pitch arrangements (controlling blade pitch F03D 7/0224)} [2023-08]
WARNING

F03D 1/0667
. . . . . .
{characterized by the actuator arrangements} [2023-08]
WARNING

F03D 1/0669
. . . . . . .
{Hydraulic actuators} [2023-08]
WARNING

F03D 1/0671
. . . . . . .
{Electric actuators, e.g. motors} [2023-08]
WARNING

F03D 1/0675
. . .
{of the blades} [2023-08]
WARNING

F03D 1/0677
. . . .
{Longitudinally segmented blades; Connectors therefor} [2023-08]
WARNING

F03D 1/0679
. . . .
{Load carrying structures, e.g. beams} [2023-08]
WARNING

F03D 1/0681
. . . . .
{Spar caps} [2023-08]
F03D 1/0682
. . . . . .
{incorporated into the shell structure} [2023-08]
F03D 1/0684
. . . . .
{Shear webs} [2023-08]
F03D 1/0685
. . . .
{Actuation arrangements for elements attached to or incorporated with the blade (controlling flaps or slats F03D 7/0232)} [2023-08]
WARNING

F03D 1/0687
. . . .
{of the blade tip region} [2023-08]
WARNING

F03D 1/0688
. . . .
{of the leading edge region, e.g. reinforcements} [2023-08]
WARNING

F03D 1/069
. . . .
{of the trailing edge region} [2023-08]
WARNING

F03D 1/0691
. . .
{of the hub} [2013-01]
F03D 1/101
.
{Nacelles (arrangement of components within nacelles F03D 80/80)} [2023-08]
WARNING

F03D 1/125
. .
{Access thereto, e.g. doors or platforms} [2023-08]
F03D 1/141
. .
{Supporting structures, i.e. load carrying structures} [2023-08]
F03D 1/165
. .
{Fairings, i.e. elements defining or supporting the outer surface} [2023-08]
F03D 1/181
. .
{characterised by the connection to the tower, e.g. yaw systems (controlling the orientation in relation to wind direction F03D 7/0204)} [2023-08]
WARNING

F03D 1/188
. .
{made of several pieces and assembled on-site (assembly of wind motors F03D 13/10)} [2023-08]
F03D 3/00
Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  (controlling thereof F03D 7/06) [2018-05]
F03D 3/002
.
{the axis being horizontal} [2023-08]
F03D 3/005
.
{the axis being vertical} [2023-08]
WARNING

F03D 3/007
. .
{using the Magnus effect} [2013-01]
F03D 3/009
. .
{of the drag type, e.g. Savonius} [2023-08]
WARNING

F03D 3/011
. .
{of the lift type, e.g. Darrieus or Musgrove} [2023-08]
WARNING

F03D 3/02
.
having a plurality of rotors [2019-05]
F03D 3/04
.
having stationary wind-guiding means, e.g. with shrouds or channels (F03D 9/35 takes precedence) [2019-05]
F03D 3/0409
. .
{surrounding the rotor (F03D 3/0427 takes precedence)} [2023-08]
F03D 3/0418
. . .
{comprising controllable elements} [2023-08]
F03D 3/0427
. .
{with converging inlets, i.e. the guiding means intercepting an area greater than the effective rotor area (F03D 3/0463F03D 3/049 take precedence)} [2023-08]
F03D 3/0436
. .
{for shielding one side of the rotor} [2023-08]
F03D 3/0445
. . .
{the shield being fixed with respect to the wind motor} [2023-08]
F03D 3/0454
. . . .
{and only with concentrating action, i.e. only increasing the airflow speed into the rotor, e.g. divergent outlets (F03D 3/0463 takes precedence)} [2023-08]
F03D 3/0463
. . . .
{with converging inlets, i.e. the shield intercepting an area greater than the effective rotor area} [2023-08]
F03D 3/0472
. . .
{the shield orientation being adaptable to the wind motor} [2023-08]
F03D 3/0481
. . . .
{and only with concentrating action, i.e. only increasing the airflow speed into the rotor, e.g. divergent outlets (F03D 3/049 takes precedence)} [2023-08]
F03D 3/049
. . . .
{with converging inlets, i.e. the shield intercepting an area greater than the effective rotor area} [2023-08]
F03D 3/06
.
Rotors [2017-08]
F03D 3/061
. .
{characterised by their aerodynamic shape, e.g. aerofoil profiles} [2023-08]
F03D 3/062
. .
{characterised by their construction elements} [2023-08]
WARNING

F03D 3/063
. . .
{Telescoping or folding wind engaging parts} [2023-08]
WARNING

F03D 3/064
. . .
{Fixing wind engaging parts to rest of rotor} [2013-01]
F03D 3/066
. . .
{the wind engaging parts being movable relative to the rotor} [2023-08]
WARNING

F03D 3/067
. . . .
{Cyclic movements} [2023-08]
WARNING

F03D 3/068
. . . . .
{mechanically controlled by the rotor structure} [2023-08]
WARNING

F03D 5/00
Other wind motors (controlling thereof F03D 7/00) [2023-08]
WARNING

F03D 5/005
.
{Wind motors having a single vane which axis generate a conus or like surface} [2013-01]
F03D 5/015
.
{of the tethered aircraft type, e.g. kites, with traction and retraction of the tether (controlling thereof F03D 7/051)} [2023-08]
WARNING

F03D 5/02
.
the wind-engaging parts being attached to endless chains or the like [2013-01]
F03D 5/04
.
the wind-engaging parts being attached to carriages running on tracks or the like [2013-01]
F03D 5/06
.
the wind-engaging parts swinging to-and-fro and not rotating [2013-01]
F03D 7/00
Controlling wind motors  (supplying or distributing electrical power H02J, e.g. arrangements for adjusting, eliminating or compensating reactive power in networks H02J 3/18; controlling electric generators H02P, e.g. arrangements for controlling electric generators for the purpose of obtaining a desired output H02P 9/00) [2023-08]
WARNING

F03D 7/02
.
the wind motors having rotation axis substantially parallel to the air flow entering the rotor [2023-08]
WARNING

F03D 7/0202
. .
{controlling floating wind motors} [2023-08]
WARNING

F03D 7/0204
. .
{for orientation in relation to wind direction} [2023-08]
WARNING

F03D 7/0208
. . .
{Orientating out of wind} [2013-01]
F03D 7/0212
. . . .
{the rotating axis remaining horizontal} [2013-01]
F03D 7/0216
. . . .
{the rotating axis changing to vertical position} [2013-01]
F03D 7/022
. .
{Adjusting aerodynamic properties of the blades} [2013-01]
F03D 7/0224
. . .
{Adjusting blade pitch} [2023-08]
WARNING

F03D 7/0228
. . . .
{of the blade tips only} [2013-01]
F03D 7/0232
. . .
{with flaps or slats (with aerodynamic drag devices on the blades for braking F03D 7/0252)} [2023-08]
WARNING

F03D 7/0236
. . .
{by changing the active surface of the wind engaging parts, e.g. reefing or furling} [2023-08]
WARNING

F03D 7/0237
. . . .
{by means of telescoping blades} [2023-08]
WARNING

F03D 7/0239
. . . .
{by means of teetering or coning blades} [2023-08]
WARNING

F03D 7/024
. . .
{of individual blades} [2013-01]
F03D 7/0244
. .
{for braking} [2013-01]
F03D 7/0248
. . .
{by mechanical means acting on the power train} [2013-01]
F03D 7/0252
. . .
{with aerodynamic drag devices on the blades} [2013-01]
F03D 7/0256
. .
{Stall control (adjusting the blades in stall position F03D 7/0224)} [2013-01]
F03D 7/026
. .
{for starting-up} [2013-01]
F03D 7/0264
. .
{for stopping; controlling in emergency situations (orientating out of wind F03D 7/0208)} [2023-08]
F03D 7/0268
. . .
{Parking or storm protection} [2013-01]
F03D 7/0272
. .
{by measures acting on the electrical generator} [2023-08]
F03D 7/0276
. .
{controlling rotor speed, e.g. variable speed} [2023-08]
F03D 7/028
. .
{controlling wind motor output power} [2023-08]
WARNING

F03D 7/0284
. . .
{in relation to the state of the electric grid} [2023-08]
F03D 7/0288
. . .
{in relation to clearance between the blade and the tower, i.e. preventing tower strike} [2023-08]
WARNING

F03D 7/0292
. . .
{to reduce fatigue} [2023-08]
F03D 7/0296
. .
{to prevent, counteract or reduce noise emissions} [2023-08]
WARNING

F03D 7/0298
. .
{to prevent, counteract or reduce vibrations} [2023-08]
WARNING

F03D 7/0302
. . .
{of the tower} [2023-08]
F03D 7/04
. .
Automatic control; Regulation [2013-01]
F03D 7/041
. . .
{by means of a mechanical governor} [2013-01]
F03D 7/042
. . .
{by means of an electrical or electronic controller} [2013-01]
F03D 7/043
. . . .
{characterised by the type of control logic} [2013-01]
F03D 7/044
. . . . .
{with PID control} [2013-01]
F03D 7/045
. . . . .
{with model-based controls} [2013-01]
F03D 7/046
. . . . .
{with learning or adaptive control, e.g. self-tuning, fuzzy logic or neural network} [2013-01]
F03D 7/047
. . . .
{characterised by the controller architecture, e.g. multiple processors or data communications} [2013-01]
F03D 7/048
. . . .
{controlling wind farms} [2023-08]
WARNING

F03D 7/049
. . . . .
{in relation to the wake effect} [2023-08]
WARNING

F03D 7/051
.
{the wind motors being supported in air by airborne structures; of the tethered aircraft type} [2023-08]
WARNING

F03D 7/06
.
the wind motors having rotation axis substantially perpendicular to the air flow entering the rotor [2023-08]
WARNING

F03D 7/065
. .
{controlling rotor speed} [2023-08]
WARNING

F03D 9/00
Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations (hybrid wind-photovoltaic energy systems for the generation of electric power H02S 10/12) [2019-05]
F03D 9/007
.
{the wind motor being combined with means for converting solar radiation into useful energy} [2019-05]
F03D 9/008
.
{the wind motor being combined with water energy converters, e.g. a water turbine} [2019-05]
F03D 9/10
.
Combinations of wind motors with apparatus storing energy [2019-05]
F03D 9/11
. .
storing electrical energy [2019-05]
F03D 9/12
. .
storing kinetic energy, e.g. using flywheels [2019-05]
F03D 9/13
. .
storing gravitational potential energy [2019-05]
F03D 9/14
. . .
using liquids [2019-05]
F03D 9/16
. . .
using weights [2019-05]
F03D 9/17
. .
storing energy in pressurised fluids [2019-05]
F03D 9/18
. .
storing heat [2019-05]
F03D 9/19
. .
storing chemical energy, e.g. using electrolysis [2019-05]
F03D 9/20
.
Wind motors characterised by the driven apparatus (F03D 9/10 takes precedence) [2019-05]
F03D 9/22
. .
the apparatus producing heat [2019-05]
F03D 9/25
. .
the apparatus being an electrical generator (F03D 9/22 takes precedence) [2023-08]
WARNING

F03D 9/255
. . .
{connected to electrical distribution networks; Arrangements therefor} [2023-08]
F03D 9/257
. . . .
{the wind motor being part of a wind farm} [2019-05]
F03D 9/28
. .
the apparatus being a pump or a compressor [2019-05]
F03D 9/30
.
Wind motors specially adapted for installation in particular locations (means for mounting or supporting wind motors F03D 13/20) [2023-08]
WARNING

F03D 9/32
. .
on moving objects, e.g. vehicles [2023-08]
WARNING

F03D 9/322
. . .
{the wind motors being supported in air by airborne structures, e.g. by kites (controlling thereof F03D 7/051)} [2023-08]
WARNING

F03D 9/324
. . . .
{following a flying pattern} [2023-08]
WARNING

F03D 9/34
. .
on stationary objects or on stationary man-made structures [2019-05]
F03D 9/35
. . .
within towers, e.g. using chimney effects [2023-08]
WARNING

F03D 9/37
. . . .
with means for enhancing the air flow within the tower, e.g. by heating [2023-08]
WARNING

F03D 9/39
. . . . .
by circulation or vortex formation [2023-08]
WARNING

F03D 9/41
. . . . .
by using the wind outside the tower, e.g. using ejectors [2023-08]
WARNING

F03D 9/43
. . .
using infrastructure primarily used for other purposes, e.g. masts for overhead railway power lines [2019-05]
F03D 9/45
. . . .
Building formations [2019-05]
F03D 9/46
. . . .
Tunnels or streets [2019-05]
F03D 9/48
. .
using landscape topography, e.g. valleys [2019-05]
F03D 13/00
Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components [2019-05]
F03D 13/10
.
Assembly of wind motors; Arrangements for erecting wind motors [2023-08]
WARNING

F03D 13/104
. .
{Rotor installation, e.g. installation of blades} [2023-08]
WARNING

F03D 13/108
. . .
{Alignment, e.g. of blades to rotor hub} [2023-08]
WARNING

F03D 13/112
. .
{of towers; of masts} [2023-08]
WARNING

F03D 13/116
. .
{of nacelles} [2023-08]
WARNING

F03D 13/122
. .
{of auxiliary arrangements inside tower or nacelle, e.g. generators or transmission} [2023-08]
WARNING

F03D 13/126
. .
{Offshore} [2023-08]
WARNING

F03D 13/135
. .
{Pre-assembling, i.e. partially or completely assembling the wind motor before transport to the installation site} [2023-08]
WARNING

F03D 13/139
. .
{Assembling or erecting wind motors by using lifting means} [2023-08]
WARNING

F03D 13/20
.
Arrangements for mounting or supporting wind motors; Masts or towers for wind motors [2023-08]
WARNING

F03D 13/2005
. .
{Masts or poles} [2023-08]
WARNING

F03D 13/201
. .
{Towers} [2023-08]
WARNING

F03D 13/202
. . .
{Access thereto} [2023-08]
F03D 13/203
. . .
{Lattice truss} [2023-08]
WARNING

F03D 13/204
. . .
{Circumferentially segmented} [2023-08]
WARNING

F03D 13/205
. . .
{Connection means, e.g. joints between segments} [2023-08]
WARNING

F03D 13/206
. . . .
{between the tower and the foundation} [2023-08]
F03D 13/22
(Frozen)
. .
{Foundations specially adapted for wind motors} [2023-08]
WARNING

  • Group F03D 13/22 is no longer used for the classification of documents as of August 1, 2023.
    The content of this group is being reclassified into groups F03D 13/20, F03D 13/205, F03D 13/206 and F03D 13/256.
    All groups listed in this Warning should be considered in order to perform a complete search.
F03D 13/25
. .
specially adapted for offshore installation [2023-08]
WARNING

F03D 13/256
. . .
{on a floating support, i.e. floating wind motors} [2023-08]
WARNING

F03D 13/30
.
Commissioning, e.g. inspection, testing or final adjustment before releasing for production [2023-08]
WARNING

F03D 13/35
. .
Balancing static or dynamic imbalances [2017-02]
F03D 13/40
.
Arrangements or methods specially adapted for transporting wind motor components [2023-08]
WARNING

F03D 13/401
. .
{for transporting or storing blades} [2023-08]
WARNING

F03D 13/402
. .
{for transporting or storing towers} [2023-08]
WARNING

F03D 13/403
. .
{for transporting or storing nacelles} [2023-08]
WARNING

F03D 15/00
Transmission of mechanical power [2023-08]
WARNING

F03D 15/05
.
{using hollow exhausting blades} [2016-05]
F03D 15/10
.
using gearing not limited to rotary motion, e.g. with oscillating or reciprocating members [2023-08]
WARNING

F03D 15/101
. .
{of the epicyclic or planetary type} [2023-08]
WARNING

F03D 15/15
. .
{Changing or adjusting stroke} [2017-02]
F03D 15/20
.
Gearless transmission, i.e. direct-drive [2017-02]
F03D 15/201
.
{using friction drives, e.g. belts} [2023-08]
WARNING

F03D 15/202
.
{using hydraulic transmission} [2023-08]
WARNING

F03D 15/205
.
{to the generator located at the tower bottom} [2023-08]
WARNING

F03D 15/207
.
{to multiple generators, e.g. in series} [2023-08]
WARNING

F03D 17/00
Monitoring or testing of wind motors, e.g. diagnostics (testing during commissioning of wind motors F03D 13/30) [2023-08]
F03D 17/001
.
{Inspection} [2023-08]
WARNING

F03D 17/002
. .
{by testing or performing a safety check} [2023-08]
WARNING

F03D 17/003
. .
{characterised by using optical devices, e.g. lidar or cameras} [2023-08]
WARNING

F03D 17/004
. .
{by using remote inspection vehicles, e.g. robots or drones} [2023-08]
F03D 17/005
.
{using computation methods, e.g. neural networks} [2023-08]
WARNING

F03D 17/006
. .
{Estimation methods} [2023-08]
F03D 17/0065
. .
{for diagnostics} [2023-08]
F03D 17/007
.
{Wind farm monitoring} [2023-08]
WARNING

F03D 17/008
. .
{through wake analysis} [2023-08]
WARNING

F03D 17/009
.
{characterised by the purpose} [2023-08]
WARNING

F03D 17/011
. .
{for monitoring mechanical loads or assessing fatigue; for monitoring structural integrity} [2023-08]
WARNING

F03D 17/012
. .
{for monitoring wear or clearance} [2023-08]
WARNING

F03D 17/013
. .
{for detecting abnormalities or damage} [2023-08]
WARNING

F03D 17/014
. . .
{indicative of a fault or failure} [2023-08]
F03D 17/015
. .
{for monitoring vibrations} [2023-08]
WARNING

F03D 17/016
. . .
{indicative of rotor imbalance} [2023-08]
WARNING

F03D 17/017
. . .
{Natural frequencies or oscillations} [2023-08]
WARNING

F03D 17/018
. .
{for monitoring temperature} [2023-08]
WARNING

F03D 17/021
. .
{for monitoring power or current} [2023-08]
WARNING

F03D 17/022
. .
{for monitoring displacement} [2023-08]
WARNING

F03D 17/024
. .
{for monitoring sound or acoustic signals} [2023-08]
WARNING

F03D 17/025
. .
{for calibrating} [2023-08]
WARNING

F03D 17/026
. .
{for assessing power production capabilities} [2023-08]
WARNING

F03D 17/027
.
{characterised by the component being monitored or tested} [2023-08]
WARNING

F03D 17/028
. .
{Blades} [2023-08]
WARNING

F03D 17/0285
. . .
{Surfaces thereof} [2023-08]
WARNING

F03D 17/029
. .
{Blade pitch or yaw drive systems, e.g. pitch or yaw angle} [2023-08]
WARNING

F03D 17/031
. .
{Shafts} [2023-08]
WARNING

F03D 17/032
. .
{Bearings} [2023-08]
WARNING

F03D 17/033
. .
{Gearboxes} [2023-08]
WARNING

F03D 17/034
. .
{Towers} [2023-08]
WARNING

F03D 17/036
. .
{Generators} [2023-08]
WARNING

F03D 80/00
Details, components or accessories not provided for in groups F03D 1/00 - F03D 17/00 [2023-08]
WARNING

F03D 80/001
.
{Human safety arrangements, e.g. evacuation or emergency} [2023-08]
WARNING

F03D 80/002
.
{Micro-siting, i.e. process through which the specific location or arrangement of wind turbine is determined} [2023-08]
WARNING

F03D 80/003
.
{Power-supply to auxiliary components, e.g. to pitch drives or cooling fans} [2023-08]
WARNING

F03D 80/004
.
{for reducing adverse effects on animals, e.g. preventing avian collisions; Detection of animals} [2023-08]
WARNING

F03D 80/005
.
{for reducing noise pollution} [2023-08]
WARNING

F03D 80/011
.
{Decommissioning} [2023-08]
WARNING

F03D 80/10
.
Arrangements for warning air traffic [2023-08]
WARNING

F03D 80/20
.
Arrangements for avoiding shadow flicker [2017-02]
F03D 80/30
.
Lightning protection [2023-08]
WARNING

F03D 80/301
. .
{Lightning receptor and down conductor systems in or on blades} [2023-08]
WARNING

F03D 80/40
.
Ice detection; De-icing means [2023-08]
WARNING

F03D 80/401
. .
{De-icing by electrical resistance heating} [2023-08]
WARNING

F03D 80/402
. .
{De-icing by convective heating} [2023-08]
WARNING

F03D 80/403
. .
{Inducing vibrations for de-icing; De-icing by shaking} [2023-08]
WARNING

F03D 80/405
. .
{Ice detection} [2023-08]
WARNING

F03D 80/50
.
Maintenance or repair [2023-08]
WARNING

F03D 80/501
. .
{by using platforms} [2023-08]
WARNING

F03D 80/502
. .
{of rotors or blades} [2023-08]
WARNING

F03D 80/504
. .
{of powertrains, e.g. main shafts or generators} [2023-08]
WARNING

F03D 80/505
. .
{Locking rotors in position} [2023-08]
WARNING

F03D 80/507
. .
{Retrofitting; Repurposing, i.e. reusing of wind motor parts for different purposes; Upgrading, i.e. replacing parts for improving the wind turbine performance} [2023-08]
WARNING

F03D 80/509
. .
{Maintenance scheduling} [2023-08]
WARNING

F03D 80/55
. .
Cleaning (F03D 80/40 takes precedence) [2023-08]
WARNING

F03D 80/60
.
Cooling or heating of wind motors [2023-08]
WARNING

F03D 80/601
. .
{using ambient airflow; Convective cooling of components} [2023-08]
WARNING

F03D 80/602
. .
{Heat transfer circuits; Refrigeration circuits} [2023-08]
WARNING

F03D 80/70
.
Bearing or lubricating arrangements [2023-08]
WARNING

F03D 80/701
. .
{Pitch or yaw bearings} [2023-08]
WARNING

F03D 80/703
. .
{Shaft bearings} [2023-08]
WARNING

F03D 80/705
. .
{Lubrication circuits; Lubrication delivery means} [2023-08]
WARNING

F03D 80/707
. . .
{Gearing lubrication, e.g. gear boxes} [2023-08]
F03D 80/709
. . .
{Bearing lubrication} [2023-08]
F03D 80/80
.
Arrangement of components within nacelles or towers [2017-02]
F03D 80/82
. .
{of electrical components} [2023-08]
WARNING

F03D 80/821
. . .
{within nacelles} [2023-08]
WARNING

F03D 80/85
. . .
{Cabling} [2023-08]
WARNING

F03D 80/88
. .
{of mechanical components} [2023-08]
WARNING

F03D 80/881
. . .
{within nacelles} [2023-08]
WARNING