EP1295033A1 - Vertical axis wind turbine - Google Patents
Vertical axis wind turbineInfo
- Publication number
- EP1295033A1 EP1295033A1 EP01932078A EP01932078A EP1295033A1 EP 1295033 A1 EP1295033 A1 EP 1295033A1 EP 01932078 A EP01932078 A EP 01932078A EP 01932078 A EP01932078 A EP 01932078A EP 1295033 A1 EP1295033 A1 EP 1295033A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- turbine
- frame
- anyone
- sail
- vertical axis
- 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.)
- Withdrawn
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 239000012530 fluid Substances 0.000 claims description 18
- 239000004411 aluminium Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 238000010516 chain-walking reaction Methods 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- RLQJEEJISHYWON-UHFFFAOYSA-N flonicamid Chemical compound FC(F)(F)C1=CC=NC=C1C(=O)NCC#N RLQJEEJISHYWON-UHFFFAOYSA-N 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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
-
- 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
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/70—Bearing or lubricating arrangements
-
- 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
- F05B2240/20—Rotors
- F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05B2240/31—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor of changeable form or shape
- F05B2240/312—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor of changeable form or shape capable of being reefed
-
- 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
- F05B2240/40—Use of a multiplicity of similar components
-
- 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
- F05B2260/00—Function
- F05B2260/70—Adjusting of angle of incidence or attack of rotating blades
- F05B2260/72—Adjusting of angle of incidence or attack of rotating blades by turning around an axis parallel to the rotor centre line
-
- 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
Definitions
- This invention concerns a high aerodynamic yield turbine able to absorb energy from the natural movement of a fluid.
- a wind or water driven turbine has a shaft, usually with a horizontal axis, mounted on special bearings and with blades or large surface area elements at one end able to offer appropriate resistance to the flow of a fluid and obtain energy from the flow tlirough variations in the quantity of motion on impact with said blades.
- the shaft is kinematically connected to a device which uses the energy absorbed by the turbine and converts it into rotary mechanical energy for whatever uses are most appropriate, to date, almost exclusively for the production of electricity.
- turbines generally comprise a tower supporting a propeller assembly designed to absorb energy from the wind.
- the facility electric energy provider ENEL have performed studies in regions such as Sardinia particularly exposed to the wind in order to allow alternative and above all clean energy sources to be exploited.
- Also used to date are predominantly drag type vertical axis turbines either with blades or of the Savonius type; predominantly lift type turbines such as, for example, the Darrieus and Giro mill comprising a spherical or prism-shaped rotating frame supporting moulded surfaces designed to absorb wind energy and mixed vertical axis turbines such as, for example, the Magnus and eccentric Savonius with the characteristics and configurations of the previously described vertical axis turbines.
- predominantly drag type vertical axis turbines either with blades or of the Savonius type
- predominantly lift type turbines such as, for example, the Darrieus and Giro mill comprising a spherical or prism-shaped rotating frame supporting moulded surfaces designed to absorb wind energy and mixed vertical axis turbines such as, for example, the Magnus and eccentric Savonius with the characteristics and configurations of the previously described vertical axis turbines.
- This invention aims to provide a high aerodynamic yield turbine able to eliminate or significantly reduce the problems described above.
- This invention also aims to provide a turbine able to adapt to any direction of fluid flow.
- This invention also aims to provide a turbine able to function with even minimal fluid flow. This is achieved by means of a high aerodynamic yield turbine with the features described in the main claim.
- the high aerodynamic yield turbine according to the invention comprises a frame hinged to a fixed surface in correspondence to its vertical axis and comprising peripheral transverse rings connected by uprights supporting blades rotating around a respective axis substantially parallel to said vertical axis together with channelling elements projecting from the frame itself in a non-radial direction with respect to said vertical axis.
- the hinges of the rotating blades are located on said uprights connecting the bars of the frame which is equipped with stops allowing said blades to travel through angles less than a flat angle and such as to occupy a single sector comprised between two consecutive bars.
- the frame has perimeter guides sliding in a respective fixed housing while the channelling elements slope in the same direction and at the same angle in such a way as to contribute uniformly to the movement of the turbine.
- channelling elements absorb energy fiOm the moving fluid above all due to lift and thus due to a kinetic effect, guaranteeing a minimum of rotational energy to the turbine.
- the direction of rotation of the blades is the same as that of the turbine in such a way as to contribute additional moment to the quantity of motion so as to maintain rotational energy by increasing the inertia of the turbine itself, allowing the frame to rotate with a minimum flow of fluid.
- FIG. 1 is a front elevation of the turbine according to the invention
- figure 2 represents a cross-section from the bottom taken along the line II-II in figure 1
- figure 3 illustrates a front elevation of a rotating blade.
- the reference number 10 generally indicates a high aerodynamic yield turbine.
- a turbine 10 comprising a frame 11 with a bottom perimeter ring 12 and a top perimeter ring 13 each connected to a central shaft by means of bars 15.
- the bars 15 of the bottom ring 12 are connected to the respective bars 15 of the top ring 13 by means of intermediate uprights 16 and peripheral uprights 17, the latter being located in correspondence with said rings 12 and 13.
- the uprights 16 and 17 are substantially in parallel to the central shaft 14.
- the frame 11 has a cage-type rotor configuration, preferably cylindrical, delimited by rings 12 and 13 as well as by the peripheral uprights 17 and bars 15 strengthened by the presence of the intermediate uprights 16.
- the bottom end of which may be fixed to a plinth 19 anchored to the ground 19, there are hubs 20 and 21 respectively fixed to the bars 15 of the bottom ring 12 and the bars 15 of the top ring 13.
- These hubs are internally hollow and each has a housing for a respective bearing in such a way as to allow the frame 11 to rotate freely around the shaft 14.
- the lower perimeter ring 12 has rounded projections 22 distributed uniformly around the edge and facing radially towards the outside of the frame 11. During operation, these projections 22 are designed to slide inside an external fixed hub 23 constrained to plinths 24 anchored to the ground 19.
- Each plinth 24 may be equipped with a respective plate 25 rising up from the ground 19 and adjacent to the hub 23 in such a way as to oppose possible centrifugal forces during rotation of the turbine 10.
- each peripheral upright 17 and intermediate upright 16 is equipped with hinges 26 to hinge the respective frame 27 of a rotating blade 28.
- This latter preferably has a frame 27 with a rectangular configuration designed to support a sail 29 in stretched fabric resistant to external agents.
- the sail 29 may be reefed, for example, by releasing one end and winding it onto a respective drum 30 in correspondence to the opposite end.
- the drum 30 may be power-driven and may have guide chains sliding in a housing on the frame 27 designed to pull the sail 29 during both rolling and unrolling from the drum 30.
- each bar 15 is equipped with striker plates 31 to serve as end stops during closing of each respective rotating blade 28.
- each peripheral upright 17 and intermediate upright 16 has an angle stop 32 to limit the angular excursion of the respective rotating blade 28 during opening of said blade.
- Said angle stop is generally designed to stop excursion of the blade 28 at an angle of about 45°.
- Each rotating blade 28 may have an appropriate means of elastic return to bring it back to the closed position after the phase of the first impact of the flow of fluid is concluded.
- the inclination with respect to the bar of the support ring is generally about 45°.
- the frame 1 1 is made of light metal with good mechanical resistance and a high degree of resistance to atmospheric agents, for example, it may be in aluminium.
- Each rotating blade 28 may typically have the respective sail 29 in a material used to construct sails for boats.
- the high aerodynamic yield turbine according to the invention can be used with any type of fluid, for example air or water.
- the invention is described above with reference to a preferred embodiment.
- the turbine may operate with a number of generators.
- the perimeter ring may function directly from a power takeoff point by means of a coupling with a ring gear or belt.
- the turbine is not equipped with air channelling elements.
- hinges on the rotating blades may be central with respect to the blades themselves and not arranged on one side as in the figures shown.
- the turbine may be equipped with a number of superimposed units connected to a single central shaft.
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)
- Crushing And Grinding (AREA)
- Disintegrating Or Milling (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2000VR000045A IT1314406B1 (en) | 2000-05-09 | 2000-05-09 | HIGH AERODYNAMIC YIELD MILL. |
ITVR000045 | 2000-05-09 | ||
PCT/IT2001/000220 WO2001086140A1 (en) | 2000-05-09 | 2001-05-08 | Vertical axis wind turbine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1295033A1 true EP1295033A1 (en) | 2003-03-26 |
Family
ID=11461833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01932078A Withdrawn EP1295033A1 (en) | 2000-05-09 | 2001-05-08 | Vertical axis wind turbine |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1295033A1 (en) |
AU (1) | AU2001258751A1 (en) |
IT (1) | IT1314406B1 (en) |
WO (1) | WO2001086140A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE0004845L (en) * | 2000-12-27 | 2002-06-28 | Winmill As | Wind or water driven device for generating electric current, pump operation and the like |
GB2462618A (en) * | 2008-08-12 | 2010-02-17 | Samuel Goddard | Wind-motor with vertically-hinged flaps |
ITRM20090551A1 (en) * | 2009-10-28 | 2011-04-29 | Giampaolo Cetraro | VERTICAL WIND TURBINE WITH VARIABLE GEOMETRY |
GB2483240B (en) * | 2010-08-31 | 2015-08-12 | M & A Engineering Entpr Ltd | A vertical axis turbine |
GB2538959A (en) | 2015-05-30 | 2016-12-07 | Slavov Dyulgerski Aleksey | Rotary converter of wind energy with a vertical axis of rotation |
CN110645144A (en) * | 2019-09-26 | 2020-01-03 | 上海理工大学 | Vertical axis wind turbine with front edge active telescopic sliding blade |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4218183A (en) * | 1978-07-31 | 1980-08-19 | Dall Winther Dennis P | Windmill |
US4457669A (en) * | 1978-10-24 | 1984-07-03 | Corry William R | Jibe mill |
US4342539A (en) * | 1979-02-13 | 1982-08-03 | Potter James A | Retractable wind machine |
US4496283A (en) * | 1983-03-01 | 1985-01-29 | Kodric Andrej A | Wind turbine |
DE19826475A1 (en) * | 1998-06-13 | 1999-12-23 | Karl Merk | Wind power plant device |
-
2000
- 2000-05-09 IT IT2000VR000045A patent/IT1314406B1/en active
-
2001
- 2001-05-08 EP EP01932078A patent/EP1295033A1/en not_active Withdrawn
- 2001-05-08 WO PCT/IT2001/000220 patent/WO2001086140A1/en not_active Application Discontinuation
- 2001-05-08 AU AU2001258751A patent/AU2001258751A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO0186140A1 * |
Also Published As
Publication number | Publication date |
---|---|
IT1314406B1 (en) | 2002-12-13 |
ITVR20000045A1 (en) | 2001-11-09 |
AU2001258751A1 (en) | 2001-11-20 |
WO2001086140A1 (en) | 2001-11-15 |
ITVR20000045A0 (en) | 2000-05-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20021209 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
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AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
17Q | First examination report despatched |
Effective date: 20040405 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20060308 |