WO2019073189A4 - Vertical axis wind turbine - Google Patents
Vertical axis wind turbine Download PDFInfo
- Publication number
- WO2019073189A4 WO2019073189A4 PCT/GB2018/000134 GB2018000134W WO2019073189A4 WO 2019073189 A4 WO2019073189 A4 WO 2019073189A4 GB 2018000134 W GB2018000134 W GB 2018000134W WO 2019073189 A4 WO2019073189 A4 WO 2019073189A4
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- aerofoil
- support structure
- wind energy
- energy gathering
- gathering apparatus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/06—Rotors
- F03D3/062—Rotors characterised by their construction elements
- F03D3/066—Rotors characterised by their construction elements the wind engaging parts being movable relative to the rotor
- F03D3/067—Cyclic movements
- F03D3/068—Cyclic movements mechanically controlled by the rotor structure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/06—Controlling wind motors the wind motors having rotation axis substantially perpendicular to the air flow entering the rotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/90—Mounting on supporting structures or systems
- F05B2240/93—Mounting on supporting structures or systems on a structure floating on a liquid surface
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/90—Mounting on supporting structures or systems
- F05B2240/95—Mounting on supporting structures or systems offshore
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
Apparatus (1) for harvesting wind energy on a large scale consists of an annular support structure (4), floating on a body of water (2), which can rotate about its hub (3). Multiple vertical aerofoil units (6, 76, 206), mounted at equal intervals around the support structure (4), can pivot independently about a vertical axis (17, 217). The aerofoil units (6, 76, 206) are each held at a suitable angle of attack relative to the ambient wind (7) by vertical canard aerofoils (13, 213) mounted to a boom (12, 212) extending forwards from a leading edge (10) of the main aerofoil (8, 208) of each aerofoil unit (6, 76, 206). A cam follower mechanism (21) in the pivot mounting of each aerofoil unit (6, 76, 206) directs the angle of attack of the canard aerofoils (13, 213), so that the angle of attack of the respective main aerofoil (8, 208) is optimised for the current position of the aerofoil unit (6, 76, 206) around the rotating support structure (4). The main aerofoils (8, 208) thus generate a torque causing the apparatus (1) to rotate. Electrical power is generated from the rotation of the apparatus (1), for example by generators at the hub (3).
Claims
1. Wind energy gathering apparatus comprising:
central hub means defining a substantially vertical axis of rotation of the apparatus;
a horizontally-extending centra symmetric annular support structure floating on a body of water, the annular support structure being so connected to the central hub means as to be freely rotatable about said substantially vertical axis; and
a plurality of aerofoil means, each located adjacent a circumference of the annular support structure and spaced equiangularly around said circumference; wherein each said aerofoil means is provided with a respective aerofoil base by which it is mounted to the support structure, and from which it extends substantially vertically upwardly.
2. Wind energy gathering apparatus as claimed in Claim 1, wherein means are provided to pump air beneath the floating annular support structure to create an aerated volume and optionally to create a sheath of bubbles adjacent the support structure, in order to reduce hydrodynamic drag on the support structure as it rotates through the body of water.
3. Wind energy gathering apparatus as claimed in either Claim 1 or Claim 2, in which the floating annular support structure contains tanks adapted to be filled with water, increasing a rotating mass of the support structure so as to increase its angular momentum and the kinetic energy stored therein.
45
4. Wind energy gathering apparatus as claimed in any one of the preceding claims, further comprising electrical energy generation means operatively connected to the central hub means and driven by rotation thereof.
5. Wind energy gathering apparatus as claimed in any one of the preceding claims, further comprising dam means surrounding the floating annular support structure, said dam means being adapted to retain water flows induced by rotation of the floating annular support structure through the body of water.
6. Wind energy gathering apparatus as claimed in Claim 5, further comprising at least one electrical energy generation means mounted to the dam means so as to be driven by the water flows induced by rotation of the floating annular support structure through the body of water.
7. Wind energy gathering apparatus as claimed in any one of the preceding claims, wherein each aerofoil means and its respective aerofoil base are rotatable about a vertical axis.
8. Wind energy gathering apparatus as claimed in Claim 7, wherein each aerofoil means is so mounted to its respective aerofoil base that the vertical axis of rotation of the aerofoil base is located between a leading edge and a centre of pressure of the aerofoil means.
9. Wind energy gathering apparatus as claimed in any one of the preceding claims, further comprising stays extending between the aerofoil means and the aerofoil base, said stays optionally being enclosed in shrouds having a low- drag aerofoil profile.
10. Wind energy gathering apparatus as claimed in any one of Claims 7 to 9, wherein each aerofoil means is rotatable through 360° about said vertical axis, and is provided with respective control means adapted to employ an incident airflow flowing over said aerofoil means to align the aerofoil means about said vertical axis at an optimum angle of attack relative to said incident airflow, independently of each other aerofoil means.
11. Wind energy gathering apparatus as claimed in Claim 10, wherein each aerofoil base is provided with a vertical pivot axle, received into a bearing housing fixed to the support structure, within which it is free to rotate.
12. Wind energy gathering apparatus as claimed in Claim 11, wherein each aerofoil means is provided with canard vane means disposed upwind of a remainder of the aerofoil means, the canard vane means being so pivotably mounted that said control means controls a pitch of the canard vane means relative to a remainder of the aerofoil means, the control means optionally comprising cam means and cam follower means disposed surrounding the pivot axle and the bearing housing, cam means and cam follower means being co operatively connected between the support structure and the aerofoil means.
13. Wind energy gathering apparatus as claimed in Claim 12, wherein the range of the pitch between the canard vane means and the remainder of the aerofoil means is reduced by resilient sections within the control means, and optionally the control means is dis-engageable to allow the canard vane means and the aerofoil means to swing into line with the incident airflow and thus feather, generating no lift.
14. Wind energy gathering apparatus as claimed in Claim 11, wherein each aerofoil base is provided with roller elements extending radially outwardly from a circumference of the aerofoil base, said roller elements contacting and running along an underside of an in-turned upper edge of a circular wall mounted to the support structure as the aerofoil base rotates, so as to guide the aerofoil base and help to ensure smooth and controlled rotation of the aerofoil base on the support structure.
15. Wind energy gathering apparatus as claimed in any one of the preceding claims, wherein the central hub means is also supported on the body of water, preferably such that little or none of the weight of the support structure and aerofoil means of the apparatus is borne by the central hub means, and the central hub means is anchored in position, optionally by a plurality of cables extending to anchor means in a bed of the body of water.
48
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2005245.2A GB2581622B (en) | 2017-10-14 | 2018-10-15 | Vertical axis wind turbine |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB1716912.9A GB201716912D0 (en) | 2017-10-14 | 2017-10-14 | Vertical axis wind turbine |
| GB1716912.9 | 2017-10-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2019073189A1 WO2019073189A1 (en) | 2019-04-18 |
| WO2019073189A4 true WO2019073189A4 (en) | 2019-05-31 |
Family
ID=60419347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/GB2018/000134 Ceased WO2019073189A1 (en) | 2017-10-14 | 2018-10-15 | Vertical axis wind turbine |
Country Status (2)
| Country | Link |
|---|---|
| GB (2) | GB201716912D0 (en) |
| WO (1) | WO2019073189A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318939B (en) * | 2019-06-28 | 2021-08-17 | 杭州派祺空气净化科技有限公司 | Wind gathering device for wind power gathering power generation |
| US12305609B2 (en) | 2022-09-12 | 2025-05-20 | Leonard Van Haecke | High-mass hydro rotor for hydroelectric power generation |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0506749B1 (en) * | 1989-12-19 | 1995-10-18 | The University Of Melbourne | Wind turbine |
| AT401409B (en) * | 1995-03-08 | 1996-09-25 | Lukas Peter | DEVICE FOR GENERATING MECHANICAL ENERGY FROM FLOWS |
| GB2510554B (en) * | 2012-11-26 | 2016-03-09 | Supervawt Ltd | Turbine with Two Part Blade having Pitch and Camber Control |
| US9546643B2 (en) * | 2014-12-31 | 2017-01-17 | Ric Enterprises | Revolving overhead windmill |
| CA2886279A1 (en) * | 2015-03-24 | 2016-09-24 | Rodney D. Macdonald | Wind turbine |
-
2017
- 2017-10-14 GB GBGB1716912.9A patent/GB201716912D0/en not_active Ceased
-
2018
- 2018-10-15 GB GB2005245.2A patent/GB2581622B/en not_active Expired - Fee Related
- 2018-10-15 WO PCT/GB2018/000134 patent/WO2019073189A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| GB202005245D0 (en) | 2020-05-20 |
| GB2581622A (en) | 2020-08-26 |
| GB2581622B (en) | 2022-07-27 |
| GB201716912D0 (en) | 2017-11-29 |
| WO2019073189A1 (en) | 2019-04-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
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| ENP | Entry into the national phase |
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| 122 | Ep: pct application non-entry in european phase |
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