WO2009153772A1 - Éolienne - Google Patents

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Publication number
WO2009153772A1
WO2009153772A1 PCT/IL2008/001619 IL2008001619W WO2009153772A1 WO 2009153772 A1 WO2009153772 A1 WO 2009153772A1 IL 2008001619 W IL2008001619 W IL 2008001619W WO 2009153772 A1 WO2009153772 A1 WO 2009153772A1
Authority
WO
WIPO (PCT)
Prior art keywords
wing
assembly according
rotor
aerodynamic
wind turbine
Prior art date
Application number
PCT/IL2008/001619
Other languages
English (en)
Inventor
Nathan Kirpitznikoff
Original Assignee
Nathan Kirpitznikoff
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nathan Kirpitznikoff filed Critical Nathan Kirpitznikoff
Publication of WO2009153772A1 publication Critical patent/WO2009153772A1/fr

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
    • 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

  • the present invention relates to the technological field of wind turbines, and more particularly to a vertical axis wind turbine and a wind energy producing system.
  • Wind turbines can be separated into two types based by the axis in which the turbine rotates. Turbines that rotate around a horizontal axis are more common, and vertical axis turbines are less frequently used.
  • the horizontal axis wind turbines have the main rotor shaft and electric generator at the top of a tower and must be pointed into the wind.
  • Vertical axis wind turbines have the main rotor shaft arranged vertically without the need to be pointed into the wind to be effective in a vertical axis wind turbine the generator and gearbox can be placed near the ground.
  • the disadvantages of the horizontal axis turbine are; 1) difficulty in operating in near ground turbulent winds, 2) Downwards variants suffer from fatigue and structural failure caused by turbulence, 3) limiting the macro size turbines (above 5MW) because of the enormous size of tower height and propeller length, 4) since the rotor blades are close to the tower, there is a prevailing condition of air turbulence.
  • the disadvantages of the a vertical axis wind turbines are; 1) most of the vertical axis turbines produce energy at only 50% of the efficiency in large part because of the additional drag that they have as their blades rotate into the wind, 2) Most of the vertical axis turbines have low staring torque and may require energy to start rotation.
  • the present invention provides a rotor assembly comprising aerodynamic wings wherein each aerodynamic wing comprises a section of the wing wherein said section is constructed of two longitudinal halves the lower and upper, split at the center point of the leading and trailing edge which can open along an axis which is the longitudinal axis of the trailing edge of said new aerodynamic wing, wherein at least one longitudinal half which opens, has at least one slanted keel-like wing mounted perpendicular to said longitudinal half.
  • a wind turbine assembly comprising of a multi-arm rotor assembly of the present invention which is mounted horizontally, in its center point to a vertical mechanical drive shaft which is connected to a transmission unit in the form of a gear box which activates at least one electrical generator or other electrical power producing unit.
  • a method for producing energy comprising connecting the wind turbine assembly of the present invention to at least one electrical generator or other power producing unit.
  • FIG. 1 - a perspective view of the wind power generator turbine
  • FIG. 3 - a perspective view of the aerodynamic wing
  • FIG. 4(a-b) side view of the aerodynamic wing including a cross section view of the folding enclosures
  • FIG. 5 perspective view of the contra rotating wind power generator turbine version
  • FIG 6 horizontal wind power generator turbine arm control
  • FIG 7 - a perspective view of a horizontally slanted aerodynamic wing
  • FIG 8(a-c) - a cross section versions of a shorter aerodynamic wing
  • FIG 9 - a plan view of a staggered rotor assembly on a single shaft
  • a rotor assembly comprising aerodynamic wings (1) wherein each aerodynamic wing comprises a section of the wing wherein said section is constructed of two longitudinal halves the lower (7) and upper (7), split at the center point of the leading (9) and trailing (8) edge which can open along an axis which is the longitudinal axis of the trailing (8) edge of said aerodynamic wing, wherein at least one longitudinal half which opens, has at least one slanted keel-like wing (2) mounted perpendicular to said longitudinal half.
  • the rotor of the present invention is constructed of more than one arm (wing) [008]
  • a multi-arm rotor wind power generator turbine assembly (11) comprising aerodynamic wings (1) wherein said aerodynamic wing comprises a section wherein said section is constructed of two longitudinal halves (7) , the lower and upper, split at the center point of the leading edge (hinged side) (9) and trailing edge (open side) (8) which can open along an axis which is the longitudinal axis of said leading and trailing edges(8) (9), of said aerodynamic wing, wherein said longitudinal halves) (7), which opens, has at least one slanted keel-like wing (2) mounted perpendicular to said longitudinal half.
  • FIG. 1 there is shown a wind turbine assembly, including a multi arm wind tower generator turbine assembly (11) mounted and installed horizontally, having in its center point a vertical mechanical power driving shaft (12), facing downward towards the ground, activating a gear box or other means of transmission of power.
  • the multi arm wind power generator turbine assembly (11) is supporting multi aerodynamic wings (1 ), that activate the rotation of the turbine in wind condition.
  • Said aerodynamic wings (1 ) have a minimum aerodynamic wind drag in a rotation mode.
  • Said aerodynamic wing (1) is constructed of two longitudinal halves; the upper (7) and lower sections (7) , split at the center point of the leading edge (hinged side) (9), and trailing edge (open side) (8).
  • the aerodynamic wing comprises at least one weight balancing device (6), which create a very low tip weight on the longitudinal trailing edge (open side) (8) , thus facilitating the opening of the aerodynamic wing (1 ).
  • Said weight balancing device is constructed of a counter weight system (6), spring mechanism regulators, a combination hydraulic spring device or combinations thereof (5)
  • the aerodynamic wing is equipped with slanted keel-like wings (2).
  • Said slanted keel like wings (2) are positioned in such an angle ,that when the wind direction faces the trailing edge (8) of said aerodynamic wing (1), the wind pushes said slanted keel-like wing (2), thus opening the aerodynamic wing (1).
  • the multi arm wind power generator assembly (11) turns to a position that the leading edge (9) is facing the wind direction, the slanted keel-like wings (2), have a reverse effect and push the open aerodynamic wing (1 ), to a closed position.
  • the opening and closing of the aerodynamic wing (1) may be carried out by a synchronized regulator using wind sensors activating servo motors.
  • the opening section of the aerodynamic wing (1) includes four hinged folding side enclosures (4), serving as wind barriers at the two ends of the wing (1) side openings. They open up and close down at the same time that the aerodynamic wing (1) opens and closes. Said side enclosures (4), assist in trapping a volume of air, which enlarges the thrust effect of the aerodynamic wing (1 ).
  • Fig. 4 shows said side enclosures (4) in a closed wing mode. Said side enclosures (4), when in a closed position can fold in a outward direction (Fig. 4a), or to ' an inside direction (Fig. 4b) in both closed positions, the aerodynamic wind tips(10) on both sides of the aerodynamic wing (1) support the side enclosures from vibrating.
  • the wing is designed to open according to any of the following embodiments: 1) both the bottom and upper longitudinal halves of the wing open (Fig 2a), 2) one said longitudinal half is stationary and the other half opens.
  • the rotor may be designed to combine the above modes of opening.
  • the aerodynamic wing (1) comprises holes (13) that are located at the outer periphery side of the aerodynamic wing (1). Said holes are for draining water from with inside the wing, by gravitation or in a turning operation by centrifugal force.
  • aerodynamic wing (1) is equipped with an inner skin electric elements for the de-icing under frost conditions.
  • the multi arm rotor turbine assembly of the present invention may be constructed in various sizes as may be appreciated by the skilled artisan.
  • the length of the new aerodynamic wing which is not a limiting feature of the invention, may be from 50cm to 70 meters, depending on the desired energy output.
  • the size can vary and is adopted to the requirements of energy production and is only limited by the functional feasibility
  • the multi arm wind power generator turbine assembly (1 1) is constructed from materials which provide the required strength so that the rotor may bear the mechanical load and wear and tear under its intended use.
  • the materials are high in strength and light weight as possible, e.g.; chrome molybdenum steel profiles .aircraft type aluminum alloys, filament winding products , composite materials .titanium products, fiberglass, fabrics, synthetic fabrics and epoxy materials.
  • a multi arm wind power generator rotary turbine assembly (1 1) invention which is mounted horizontally, in its center point to a vertical mechanical shaft (12), which activates a transmission unit of a single or multi gear boxes that activate a single or multi electric generators or other power producing system units.
  • a power turbine rotor assembly comprising more than one multi-arm rotor which is assembled around a common vertical axis wherein each rotor is connected to a separate vertical shaft.
  • Said shafts are constructed in a configuration of a shaft-within-a-shaft wherein friction reducing devices such as ball or roller bearings separate one shaft from the other. Both shafts are connected to the same gear box thus having at all time a synchronized movement.
  • Said rotors are assembled at different heights and can be assembled as seen in Fig.5.
  • said rotors are assembled such that the rotation of one rotor is contra to the rotation of the other.
  • the rotation of one rotor cancels the centrifugal force of the other, thus contributing additional stability to the turbine assembly and hence reducing shear forces which weaken the assembly.
  • said rotors are assembled at different heights and can be assembled on a single central shaft(12), preferably in a staggered wing configuration as depicted in Fig.9. Said rotors are assembled such that they rotate in the same direction. [019] In an additional embodiment of the present invention, with particular reference to Fig.
  • the opening section has a shorter wing section(8 a-c) than the full half cross section(1)(Fig.2) .
  • these wings(Fig. ⁇ a-c) are designed to open according to any of the following embodiments: 1)both the bottom and the upper longitudinal halves of the wing open (Fig 8a) .2) one said longitudinal half is stationary and the other open thus when the bottom half is stationary, the upper half opens(Fig,8b) and when the upper half is stationary the bottom half opens up (Fig ⁇ c)
  • the rotor may be designed to combine the above modes of opening.
  • a method comprising connecting the wind power generator turbine assembly (1 1) to an electric starting device for the start of the rotary motion and an electro mechanical or hydraulic brake system for halting the turbine rotary turning motion.
  • the present invention relates to vertical shaft wind power generators of medium size (about 1500KW) to large capacities of the magnitude of up to 250 MW. Wind flow is basically parallel to the earth crust and its direction is variable.
  • the present invention is so conceived and designed as to provide maximum power thrust accommodating these environmental and natural conditions.
  • the present invention provides a method for an automatic regulation of the opening and closing pattern of the complete multi power aerodynamic wings of the wind power generator turbine by means of electro mechanical and sensing devices.
  • the present invention further provides aerodynamic wings that could be employed in an unlimited wing designed shapes and forms providing that the leading edge (9) the hinged side, will be facing head on the rotational direction of multi arm turbine rotor in wind condition.
  • the present invention is advantageously in: 1) reducing drastically the drag (air friction) at the position when half of the aerodynamic wing is turning while the two haves of the wings are in closed down in position, thus gaining maximum thrust utilization of the system, since they do not offset the remaining active opened wings 2) lowering the maximum height profile of the wind power generator structure in comparison to the horizontal one, 3) Installing gear boxes and type electric generators at ground level with a possible reserve standbys.
  • this vertical type of wind power generator provides a large choice of use of existing materials, production methods, structural and mechanical techniques, electrical and electronic equipment, for example: using one of many industrial electric existing generators, producing pre-fabricated steel parts for the tower and part of the multi arm rotor assembly, or a combination of metal structure and a reinforced concrete, all high tensile steel profiles for transmission devices, such as drive shafts, universal couplings, all ball, roll and thrust bearings, and a host of other existing solutions, materials and equipment, 5) this rotating multi arm wind power generator turbine structure has a vital momentum which keeps the system in a more homogeneous operation due to possible wind speed and direction changes 6) this wind power generator operates at all wind directional changes conforming itself to the possible prevailing wind conditions. From an environmental point of view, the present invention provides within a relatively small space a substitute and replacement of large spread propeller type horizontal turbine farms.

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  • 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

L'invention concerne un ensemble rotor comprenant des ailes aérodynamiques, chaque aile aérodynamique comprenant une section d'aile constituée de deux moitiés longitudinales (inférieure et supérieure) séparées au niveau du point central des bords d'attaque et de fuite pouvant s'ouvrir le long d'un axe qui est l'axe longitudinal du bord de fuite de la nouvelle aile aérodynamique, au moins une moitié qui s'ouvre présente au moins une aile en forme de quille inclinée montée perpendiculairement à la moitié longitudinale. La présente invention concerne également un ensemble éolienne comprenant un ensemble rotor à bras multiple monté horizontalement, au niveau de son point central, sur un arbre d'entraînement mécanique vertical qui est connecté à un bloc de transmission présentant la forme d'un boîtier de vitesses qui active au moins un générateur électrique ou d'autre bloc de production d'électricité.
PCT/IL2008/001619 2008-06-20 2008-12-15 Éolienne WO2009153772A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13257808P 2008-06-20 2008-06-20
US61/132,578 2008-06-20

Publications (1)

Publication Number Publication Date
WO2009153772A1 true WO2009153772A1 (fr) 2009-12-23

Family

ID=41433750

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2008/001619 WO2009153772A1 (fr) 2008-06-20 2008-12-15 Éolienne

Country Status (1)

Country Link
WO (1) WO2009153772A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130039761A1 (en) * 2010-03-23 2013-02-14 Flávio Francisco Dulcetti Filho Vertical wind turbine with articulated blades
WO2014165945A3 (fr) * 2013-04-11 2014-12-04 Muftić Omer Turbine éolienne double
EP3203063A1 (fr) * 2016-02-03 2017-08-09 Wilhelmus Helena Hendrikus Joosten Éolienne, son utilisation et aube à utiliser dans la turbine
CN109441718A (zh) * 2018-12-13 2019-03-08 清华大学 具有斜轴变桨和自启动功能的叶片浮动式海上风力发电机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4410806A (en) * 1981-09-03 1983-10-18 Brulle Robert V Control system for a vertical axis windmill
US20080075594A1 (en) * 2006-09-15 2008-03-27 Bailey James L Self-regulating windmill with horizontally oriented blades
US20080121752A1 (en) * 2006-11-03 2008-05-29 Chen Franklin Y K Asymmetrically changing rotating blade shape (ACRBS) propeller and its airplane and wind turbine applications
US20080145219A1 (en) * 2006-12-13 2008-06-19 The Boeing Company Vortex generators on rotor blades to delay an onset of large oscillatory pitching moments and increase maximum lift

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4410806A (en) * 1981-09-03 1983-10-18 Brulle Robert V Control system for a vertical axis windmill
US20080075594A1 (en) * 2006-09-15 2008-03-27 Bailey James L Self-regulating windmill with horizontally oriented blades
US20080121752A1 (en) * 2006-11-03 2008-05-29 Chen Franklin Y K Asymmetrically changing rotating blade shape (ACRBS) propeller and its airplane and wind turbine applications
US20080145219A1 (en) * 2006-12-13 2008-06-19 The Boeing Company Vortex generators on rotor blades to delay an onset of large oscillatory pitching moments and increase maximum lift

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130039761A1 (en) * 2010-03-23 2013-02-14 Flávio Francisco Dulcetti Filho Vertical wind turbine with articulated blades
US9377006B2 (en) * 2010-03-23 2016-06-28 Flávio Francisco Dulcetti Filho Vertical wind turbine with articulated blades
WO2014165945A3 (fr) * 2013-04-11 2014-12-04 Muftić Omer Turbine éolienne double
EP3203063A1 (fr) * 2016-02-03 2017-08-09 Wilhelmus Helena Hendrikus Joosten Éolienne, son utilisation et aube à utiliser dans la turbine
WO2017134145A1 (fr) 2016-02-03 2017-08-10 Wilhelmus Helena Hendrikus Joosten Turbine éolienne, son utilisation et pale destinée à être utilisée dans la turbine
CN108603489A (zh) * 2016-02-03 2018-09-28 威廉·海伦娜·亨德里克斯·茱斯顿 风力涡轮机、其应用及在涡轮机中使用的叶片
US10359024B2 (en) 2016-02-03 2019-07-23 Wilhelmus Helena Hendrikus Joosten Wind turbine, its use and a vane for use in the turbine
CN108603489B (zh) * 2016-02-03 2020-06-02 威廉·海伦娜·亨德里克斯·茱斯顿 风力涡轮机、其应用及在涡轮机中使用的叶片
CN109441718A (zh) * 2018-12-13 2019-03-08 清华大学 具有斜轴变桨和自启动功能的叶片浮动式海上风力发电机

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