US20080019833A1 - Cylindrical wind turbine - Google Patents
Cylindrical wind turbine Download PDFInfo
- Publication number
- US20080019833A1 US20080019833A1 US11/490,285 US49028506A US2008019833A1 US 20080019833 A1 US20080019833 A1 US 20080019833A1 US 49028506 A US49028506 A US 49028506A US 2008019833 A1 US2008019833 A1 US 2008019833A1
- Authority
- US
- United States
- Prior art keywords
- turbine
- base
- sprocket
- axle
- vane
- 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.)
- Abandoned
Links
- 238000000605 extraction Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
-
- 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 relates to a squirrel-cage-like turbine that can be used to convert wind energy to mechanical power and is conceived as an alternative to conventional propeller-type turbines.
- Turbines have long been used to convert directed jets of gas or water into rotary motion.
- the turbine is a construct of fixed vanes in a circular array about a centered shaft.
- Such a device requires directional jets in order to rotate.
- My invention departs from this scheme in that it requires no directional jets, but rotates in the wind by continually adjusting each vane's attack angle to the wind.
- it has the capability of instantaneously adjusting all vanes to changing wind direction so that energy conversion is maintained at a maximum.
- This invention relates to the field of wind turbines.
- One object of my invention is to provide a cylindrical turbine capable of converting wind energy to mechanical power.
- Another object is to provide a turbine whose wind-capturing vanes are continually rotated about their long axes, as the turbine turns, to position each at a favorable angle to wind direction.
- Yet another object of my invention is to provide a mechanical adjustment, suitable for servo control, that allows continuous, simultaneous correction for changing wind direction.
- Still another object is to provide a wind turbine capable of being supported against the wind by guy cables attached at the top of the support column, thereby reducing mass.
- a final object is to provide a wind turbine whose visibility to birds is greater than conventional propeller wind turbines, thus reducing bird kill.
- FIG. 1 is an elevation view of my invention for converting wind energy to rotary motion suitable to electric power generation.
- FIG. 2 is a cross-sectional view taken along 2 - 2 of FIG. 1 .
- FIGS. 1 and 2 a rigid structure, cubical in shape, is formed by square tabular members 3 and 4 and posts 5 , 6 , 7 , and 8 bolted together using eight flanges of which 9 , 10 , 11 , 12 , 13 , and 14 are shown in the Figures.
- the turbine is housed within this structure and held in position by its axle 15 , radial bearing 16 bolted to member 3 and radial/thrust bearing 17 bolted to member 4 .
- the turbine is formed by two planar, circular plates 20 and 21 joined to axle 15 by bolted flanges 18 and 19 .
- vane 25 In an evenly spaced, circular array, six elongate, tabular vanes 22 , 23 , 24 , 25 , 26 , 27 are operationally supported between plates 20 and 21 by inset bearings, the mechanics of vane 25 is typical. It is grasped at its ends by channel fixtures 32 and 33 which, at their centers, support shafts 28 and 29 aligned with the vane's long axis. These shafts rotate in radial bearing 31 at the upper end and in radial/thrust bearing 30 at the lower end. Additionally, the lower end shaft holds sprocket 37 . All identical sprockets 34 , 35 , 36 , 37 , 38 , and 39 are linked together by endless chain 40 .
- the lower shaft of vane 24 extends below plate 21 , where sprocket 41 is attached.
- Endless chain 44 couples sprocket 42 to sprocket 41 .
- Sprocket 42 and gear 43 constitute a single mechanical unit riding free on axle 15 .
- Sprockets 41 and 42 have a two-to-one tooth ratio, 42 having the lesser number of teeth.
- Gear 43 meshes with gear 45 whose supporting shaft pierces base member 4 and is driven by a commercial servo unit 47 . This unit responds to a wind-direction sensor (not shown in the drawings) located in the wind stream driving the turbine.
- the turbine rotates by its central shaft 15 turning in bearings 16 and 17 .
- servo motor 47 is inactive, which locks gears 43 and 45 , thereby holding sprocket 42 stationary as the turbine rotates around it.
- the vanes 22 through 27 are in the position shown in FIG. 2 .
- the wind impinging on the vanes induce a clockwise turbine rotation around stationary sprocket 42 .
- the linking of sprocket 41 and 42 causes all vanes to rotate counterclockwise about their long axes at one-half the rotational rate of the turbine.
- each vane to wind direction is continually adjusted, as the turbine turns, to contribute to the turbine's rotation, save when it is near the position of vane 23 in FIG. 2 .
- a vane is position 23 is parallel to wind direction, an orientation of minimum drag.
- the chain coupling of the vanes to sprocket 42 , hence to servo motor 47 through gears 43 and 45 allows for instantaneous and continuous adjustment of the vanes to changing wind direction.
- a wind direction change of left to right in FIG. 2 Each vane now requires an instantaneous clockwise rotation of 45 degrees for peak energy conversion. This correction is made, whether or not the turbine is turning, by a 90-degree clockwise rotation of gear 43 .
- the servo motor 47 then remains inactive until a wind direction change necessitates further correction.
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
This invention is a cylindrical turbine incorporating rotating vanes, unlike the fixed vanes utilized in conventional turbines. The rotational position of each vane is continually adjusted, as the turbine turns, to maximize the turbine's energy extraction from the wind.
Description
- This invention relates to a squirrel-cage-like turbine that can be used to convert wind energy to mechanical power and is conceived as an alternative to conventional propeller-type turbines.
- Turbines have long been used to convert directed jets of gas or water into rotary motion. Conventionally, the turbine is a construct of fixed vanes in a circular array about a centered shaft. Such a device requires directional jets in order to rotate. My invention departs from this scheme in that it requires no directional jets, but rotates in the wind by continually adjusting each vane's attack angle to the wind. Furthermore, it has the capability of instantaneously adjusting all vanes to changing wind direction so that energy conversion is maintained at a maximum.
- A severe problem with conventional wind turbines is their very high tip velocity, in excess of 180 miles per hour, which leads to low propeller visibility for birds flying in the vicinity. The resultant death of thousands of birds has caused a negative reaction among environmental groups who are demanding curtailed use of this otherwise very desirable power source. My invention addresses this problem by utilizing a squirrel-cage-like turbine with much greater visibility.
- This invention relates to the field of wind turbines. One object of my invention is to provide a cylindrical turbine capable of converting wind energy to mechanical power. Another object is to provide a turbine whose wind-capturing vanes are continually rotated about their long axes, as the turbine turns, to position each at a favorable angle to wind direction. Yet another object of my invention is to provide a mechanical adjustment, suitable for servo control, that allows continuous, simultaneous correction for changing wind direction. Still another object is to provide a wind turbine capable of being supported against the wind by guy cables attached at the top of the support column, thereby reducing mass. A final object is to provide a wind turbine whose visibility to birds is greater than conventional propeller wind turbines, thus reducing bird kill.
-
FIG. 1 is an elevation view of my invention for converting wind energy to rotary motion suitable to electric power generation. -
FIG. 2 is a cross-sectional view taken along 2-2 ofFIG. 1 . - Referring to the drawings,
FIGS. 1 and 2 , a rigid structure, cubical in shape, is formed by squaretabular members posts axle 15, radial bearing 16 bolted tomember 3 and radial/thrust bearing 17 bolted tomember 4. The turbine is formed by two planar,circular plates axle 15 bybolted flanges tabular vanes plates vane 25 is typical. It is grasped at its ends bychannel fixtures shafts sprocket 37. Allidentical sprockets endless chain 40. The lower shaft ofvane 24 extends belowplate 21, wheresprocket 41 is attached.Endless chain 44 couples sprocket 42 to sprocket 41. Sprocket 42 andgear 43 constitute a single mechanical unit riding free onaxle 15.Sprockets Gear 43 meshes withgear 45 whose supporting shaftpierces base member 4 and is driven by acommercial servo unit 47. This unit responds to a wind-direction sensor (not shown in the drawings) located in the wind stream driving the turbine. - In operation, the turbine rotates by its
central shaft 15 turning inbearings servo motor 47 is inactive, which locksgears sprocket 42 stationary as the turbine rotates around it. Consider a wind direction from bottom to top ofFIG. 2 . In an instantaneous moment, thevanes 22 through 27 are in the position shown inFIG. 2 . The wind impinging on the vanes induce a clockwise turbine rotation aroundstationary sprocket 42. The linking ofsprocket vane 23 inFIG. 2 . A vane isposition 23 is parallel to wind direction, an orientation of minimum drag. The chain coupling of the vanes to sprocket 42, hence toservo motor 47 throughgears FIG. 2 . Each vane now requires an instantaneous clockwise rotation of 45 degrees for peak energy conversion. This correction is made, whether or not the turbine is turning, by a 90-degree clockwise rotation ofgear 43. Theservo motor 47 then remains inactive until a wind direction change necessitates further correction.
Claims (1)
1. A cylindrical turbine for converting wind energy to rotary power comprising a square, tabular base supporting four posts at the corners, said posts supporting, at their upper ends, a top identical to said base, creating a roughly cubical space housing the turbine rotor composed of two identical circular plates affixed at their centers and held by flanges mounted on an axle that turns in bearings centrally bolted to said base and top; two or more (depending on turbine size) elongate, tabular vanes having shafts mounted at each end aligned coincident with said vane's long axis, said shafts held in bearings mounted in a circular, evenly spaced array on the inside surface and near the edge of said circular plates; an identical sprocket, centered on the shaft attached to the base of each vane, said sprockets linked together by an endless chain having minimal slack; a lower shaft of one of the said vanes extending through its bearing to the rotor's underside where on said shaft a sprocket is affixed and linked by an endless chain to a smaller sprocket having one half the number of teeth of its larger companion and centered on, but free to turn independently of, the axle; two meshed gears, one concentrically joined to said smaller sprocket, free of the axle, the second gear mounted on the output shaft of a commercial servo motor installed below the said base.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/490,285 US20080019833A1 (en) | 2006-07-21 | 2006-07-21 | Cylindrical wind turbine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/490,285 US20080019833A1 (en) | 2006-07-21 | 2006-07-21 | Cylindrical wind turbine |
Publications (1)
Publication Number | Publication Date |
---|---|
US20080019833A1 true US20080019833A1 (en) | 2008-01-24 |
Family
ID=38971618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/490,285 Abandoned US20080019833A1 (en) | 2006-07-21 | 2006-07-21 | Cylindrical wind turbine |
Country Status (1)
Country | Link |
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US (1) | US20080019833A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100278647A1 (en) * | 2007-04-12 | 2010-11-04 | Adrian Janssen | Fluid turbine |
CN101943119A (en) * | 2010-09-13 | 2011-01-12 | 薛晓户 | Method and system for controlling propulsion plate of wind propulsion device |
ITMO20090202A1 (en) * | 2009-08-04 | 2011-02-05 | Ermanno Grandi | WIND ENERGY TRANSFORMATION DEVICE |
US20110209650A1 (en) * | 2010-02-26 | 2011-09-01 | Champion Engineering Technology Ltd | Planet Wind Sail Mechanism |
CN102261311A (en) * | 2011-07-15 | 2011-11-30 | 张立永 | Antarctic windmill |
US20130129509A1 (en) * | 2010-05-28 | 2013-05-23 | Airborne Energy Limited | Vertical axis wind turbine |
CN103192969A (en) * | 2013-03-29 | 2013-07-10 | 纪强 | Paddle wheel propeller for ship |
US20140112783A1 (en) * | 2011-07-07 | 2014-04-24 | 7142871 Canada, Inc. | Horizontal axis multiple stages wind turbine |
ITSS20130004A1 (en) * | 2013-05-15 | 2014-11-16 | Catello Raffaele Filippo Monaco | "TORRE - CUPOLA EOLICA CHIUDIBILE" |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US535193A (en) * | 1895-03-05 | chapman | ||
US675057A (en) * | 1897-06-29 | 1901-05-28 | Thomas A Edison | Apparatus for screening pulverized material. |
US862299A (en) * | 1906-05-21 | 1907-08-06 | Charles F Whisler | Wind-wheel. |
US4380417A (en) * | 1979-07-11 | 1983-04-19 | J. M. Voith Gmbh | Installation operated with wind or water power |
US4609827A (en) * | 1984-10-09 | 1986-09-02 | Nepple Richard E | Synchro-vane vertical axis wind powered generator |
-
2006
- 2006-07-21 US US11/490,285 patent/US20080019833A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US535193A (en) * | 1895-03-05 | chapman | ||
US675057A (en) * | 1897-06-29 | 1901-05-28 | Thomas A Edison | Apparatus for screening pulverized material. |
US862299A (en) * | 1906-05-21 | 1907-08-06 | Charles F Whisler | Wind-wheel. |
US4380417A (en) * | 1979-07-11 | 1983-04-19 | J. M. Voith Gmbh | Installation operated with wind or water power |
US4609827A (en) * | 1984-10-09 | 1986-09-02 | Nepple Richard E | Synchro-vane vertical axis wind powered generator |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100278647A1 (en) * | 2007-04-12 | 2010-11-04 | Adrian Janssen | Fluid turbine |
US8858177B2 (en) * | 2007-04-12 | 2014-10-14 | Momentum Holdings Limited | Fluid turbine |
ITMO20090202A1 (en) * | 2009-08-04 | 2011-02-05 | Ermanno Grandi | WIND ENERGY TRANSFORMATION DEVICE |
US20110209650A1 (en) * | 2010-02-26 | 2011-09-01 | Champion Engineering Technology Ltd | Planet Wind Sail Mechanism |
US8721259B2 (en) * | 2010-02-26 | 2014-05-13 | Nai-Wen Fan | Planet wind sail mechanism |
US20130129509A1 (en) * | 2010-05-28 | 2013-05-23 | Airborne Energy Limited | Vertical axis wind turbine |
CN101943119A (en) * | 2010-09-13 | 2011-01-12 | 薛晓户 | Method and system for controlling propulsion plate of wind propulsion device |
US20140112783A1 (en) * | 2011-07-07 | 2014-04-24 | 7142871 Canada, Inc. | Horizontal axis multiple stages wind turbine |
CN102261311A (en) * | 2011-07-15 | 2011-11-30 | 张立永 | Antarctic windmill |
CN103192969A (en) * | 2013-03-29 | 2013-07-10 | 纪强 | Paddle wheel propeller for ship |
ITSS20130004A1 (en) * | 2013-05-15 | 2014-11-16 | Catello Raffaele Filippo Monaco | "TORRE - CUPOLA EOLICA CHIUDIBILE" |
WO2014184732A1 (en) * | 2013-05-15 | 2014-11-20 | Monaco Catello Raffaele Filippo | Tower-like wind generator |
CN105164408A (en) * | 2013-05-15 | 2015-12-16 | 卡特罗·拉斐尔·菲利波·摩纳哥 | Tower-like wind generator |
JP2016532803A (en) * | 2013-05-15 | 2016-10-20 | ラッファエレ フィリッポ モナコ,カテッロ | Tower wind generator |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |