1. CPC Sections
  2. CPC Section F
  3. CPC Class F03
  4. CPC Subclass F03D
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Version: 2023.02
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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) [2018-05]
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) [2019-05]
F03D 1/06
.
Rotors [2013-01]
F03D 1/0608
. .
{characterised by their form} [2013-01]
F03D 1/0616
. . .
{using the Magnus effect} [2013-01]
F03D 1/0625
. . .
{of the whole rotor, i.e. form features of the rotor unit} [2013-01]
F03D 1/0633
. . .
{of the blades} [2013-01]
F03D 1/0641
. . . .
{of the section profile of the blades} [2013-01]
F03D 1/065
. .
{characterised by their construction, i.e. structural design details (F03D 13/10 takes precedence)} [2017-02]
F03D 1/0658
. . .
{Fixing wind-engaging parts to rotor} [2013-01]
F03D 1/0666
. . .
{of the whole rotor} [2013-01]
F03D 1/0675
. . .
{of the blades} [2013-01]
F03D 1/0683
. . . .
{of the section profile of the blades} [2013-01]
F03D 1/0691
. . .
{of the hub} [2013-01]
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
.
{axis horizontal} [2013-01]
F03D 3/005
.
{axis vertical} [2013-01]
F03D 3/007
. .
{using the Magnus effect} [2013-01]
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
. .
{having stationary guiding vanes surrounding the rotor (F03D 3/0427 takes precedence)} [2019-05]
F03D 3/0418
. . .
{the vanes being adjustable} [2019-05]
F03D 3/0427
. .
{with augmenting action, i.e. the guiding means intercepting an area greater than the effective rotor area (F03D 3/0463, F03D 3/049 take precedence)} [2019-05]
F03D 3/0436
. .
{having shield means on one side of the rotor} [2019-05]
F03D 3/0445
. . .
{fixed with respect to rotor, orientable together} [2019-05]
F03D 3/0454
. . . .
{and only with concentrating action, i.e. only increasing the airflow speed into the rotor (F03D 3/0463 takes precedence)} [2019-05]
F03D 3/0463
. . . .
{with augmenting action, i.e. the shield means intercepting an area greater than the effective rotor area} [2019-05]
F03D 3/0472
. . .
{orientable with respect to the rotor} [2019-05]
F03D 3/0481
. . . .
{and only with concentrating action, i.e. only increasing the airflow speed into the rotor (F03D 3/049 takes precedence)} [2019-05]
F03D 3/049
. . . .
{with augmenting action, i.e. the shield means intercepting an area greater than the effective rotor area} [2019-05]
F03D 3/06
.
Rotors [2017-08]
F03D 3/061
. .
{Form} [2013-01]
F03D 3/062
. .
{Construction} [2013-01]
F03D 3/064
. . .
{Fixing wind engaging parts to rest of rotor} [2013-01]
F03D 3/065
. . .
{the wind engaging parts having no movement relative to the rotor during its rotation} [2013-01]
F03D 3/067
. . .
{the wind engaging parts having a cyclic movement relative to the rotor during its rotation} [2013-01]
F03D 3/068
. . . .
{the cyclic relative movement being coupled to the movement of rotation; Controlling same, e.g. according to wind direction or force} [2013-01]
F03D 5/00
Other wind motors (controlling thereof F03D 7/00) [2018-05]
F03D 5/005
.
{Wind motors having a single vane which axis generate a conus or like surface} [2013-01]
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 [2013-01]
F03D 7/02
.
the wind motors having rotation axis substantially parallel to the air flow entering the rotor [2018-05]
F03D 7/0204
. .
{for orientation in relation to wind direction} [2013-01]
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} [2013-01]
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)} [2013-01]
F03D 7/0236
. . .
{by changing the active surface of the wind engaging parts, e.g. reefing, telescoping, furling or coning} [2013-01]
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 or in emergency situation (orientating out of wind F03D 7/0208)} [2013-01]
F03D 7/0268
. . .
{Parking or storm protection} [2013-01]
F03D 7/0272
. .
{by measures acting on the electrical generator (controlling electric generator per se H02P)} [2013-01]
F03D 7/0276
. .
{Controlling rotor speed, e.g. variable speed} [2013-01]
F03D 7/028
. .
{Controlling motor output power} [2013-01]
F03D 7/0284
. . .
{in relation to the state of the electric grid (supplying or distributing electric power H02J)} [2013-01]
F03D 7/0288
. . .
{to prevent instantaneous damage to any part of the motor} [2013-01]
F03D 7/0292
. . .
{to increase fatigue life} [2013-01]
F03D 7/0296
. .
{to prevent, counteract or reduce vibration or noise} [2013-01]
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} [2013-01]
F03D 7/06
.
the wind motors having rotation axis substantially perpendicular to the air flow entering the rotor [2018-05]
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) [2019-05]
F03D 9/255
. . .
{connected to an electrical general supply grid; Arrangements therefor} [2019-05]
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) [2019-05]
F03D 9/32
. .
on moving objects, e.g. vehicles [2019-05]
F03D 9/34
. .
on stationary objects or on stationary man-made structures [2019-05]
F03D 9/35
. . .
within towers, e.g. using chimney effects [2019-05]
F03D 9/37
. . . .
with means for enhancing the air flow within the tower, e.g. by heating [2019-05]
F03D 9/39
. . . . .
by circulation or vortex formation [2019-05]
F03D 9/41
. . . . .
by using the wind outside the tower, e.g. using ejectors [2019-05]
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 [2017-02]
F03D 13/20
.
Arrangements for mounting or supporting wind motors; Masts or towers for wind motors [2019-05]
F03D 13/22
. .
{Foundations specially adapted for wind motors} [2017-02]
F03D 13/25
. .
specially adapted for offshore installation [2019-05]
F03D 13/30
.
Commissioning, e.g. inspection, testing or final adjustment before releasing for production [2017-02]
F03D 13/35
. .
Balancing static or dynamic imbalances [2017-02]
F03D 13/40
.
Arrangements or methods specially adapted for transporting wind motor components [2017-02]
F03D 15/00
Transmission of mechanical power [2017-02]
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 [2017-02]
F03D 15/15
. .
{Changing or adjusting stroke} [2017-02]
F03D 15/20
.
Gearless transmission, i.e. direct-drive [2017-02]
F03D 17/00
Monitoring or testing of wind motors, e.g. diagnostics (testing during commissioning of wind motors F03D 13/30) [2019-05]
F03D 80/00
Details, components or accessories not provided for in groups F03D 1/00 - F03D 17/00 [2019-05]
F03D 80/10
.
Arrangements for warning air traffic [2017-02]
F03D 80/20
.
Arrangements for avoiding shadow flicker [2017-02]
F03D 80/30
.
Lightning protection [2017-02]
F03D 80/40
.
Ice detection; De-icing means [2017-02]
F03D 80/50
.
Maintenance or repair [2019-05]
F03D 80/55
. .
Cleaning (F03D 80/40 takes precedence) [2019-05]
F03D 80/60
.
Cooling or heating of wind motors [2019-05]
F03D 80/70
.
Bearing or lubricating arrangements [2017-02]
F03D 80/80
.
Arrangement of components within nacelles or towers [2017-02]
F03D 80/82
. .
{of electrical components} [2017-02]
F03D 80/85
. . .
{Cabling} [2017-02]
F03D 80/88
. .
{of mechanical components} [2017-02]