WO2011105970A2 - Wind generator with vertical rotation axis, in particular for mobile applications - Google Patents

Wind generator with vertical rotation axis, in particular for mobile applications Download PDF

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Publication number
WO2011105970A2
WO2011105970A2 PCT/SK2011/050001 SK2011050001W WO2011105970A2 WO 2011105970 A2 WO2011105970 A2 WO 2011105970A2 SK 2011050001 W SK2011050001 W SK 2011050001W WO 2011105970 A2 WO2011105970 A2 WO 2011105970A2
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
blades
wind generator
longitudinal axis
arms
Prior art date
Application number
PCT/SK2011/050001
Other languages
French (fr)
Other versions
WO2011105970A4 (en
WO2011105970A3 (en
Inventor
Miloš BORTEL
Original Assignee
Bortel Milos
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 Bortel Milos filed Critical Bortel Milos
Priority to EP11728714A priority Critical patent/EP2539583A2/en
Publication of WO2011105970A2 publication Critical patent/WO2011105970A2/en
Publication of WO2011105970A3 publication Critical patent/WO2011105970A3/en
Publication of WO2011105970A4 publication Critical patent/WO2011105970A4/en

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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
    • F03D3/064—Fixing wind engaging parts to rest of rotor
    • 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
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/40—Arrangements or methods specially adapted for transporting wind motor 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
    • 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
    • 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 wind generator with vertical rotation axis, in particular for mobile applications designed for generation of electric, mechanical or other form of energy.
  • Pair of arms in the RU2364748 C1 patent is connected on the side of working blade with one console, on which there is working blade attached in rotary manner.
  • Change of blades rotation diameter and therefore also volume of the generator is done by mechanism with geared segment placed on the arm in the part of rotating shaft.
  • the wind generator with vertical rotation axis in particular for mobile applications, consisting of at least two blades, which are attached on the central shaft by means of fixing set of elements, according to the present invention
  • the substance whereof resides in that the fixing set of elements is constructed as shifting mechanism for continuous change of the distance between blades and the shaft, and thereby also for regulation of the generator’s power output in the working position during rotation of blades, as well as for reducing its volume at change of working position to transport one during stagnation of blades, while longitudinal axis of each blade is parallel with longitudinal axis of the shaft.
  • Sliding mechanism consists of arms mutually interconnected by joints, draw-bars and servo-mechanism.
  • At least two arms are connected by joints to each blade, and at least one draw-bar connected with servo-mechanism is attached on least one of arms.
  • the servo-mechanism serves for adjusting the angle between shaft longitudinal axis and the arm and thereby also for change of the distance between blades and the shaft.
  • Each of blades is advantageously connected with the arm by means of outer joint, the bearing surface whereof is structurally arranged according to the blade profile.
  • the arm is advantageously connected with the shaft by means of internal joint, which is provided as part of the shaft.
  • the servo-mechanism is interconnected with control unit, which is connected to driven device and/or its revolutions sensor.
  • the advantage of mentioned design is that simple construction of shifting fixing mechanism of blades is used for regulation of the generator’s power output as well as for reducing its volume at change of working position to transport one.
  • FIG 1 shows basic construction of the wind generator in working position
  • FIG. 2 shows the wind generator in the conditions with maximum distance of blades from the shaft
  • FIG. 3 shows the wind generator in the conditions with reduced distance of blades from the shaft
  • FIG. 4 shows the wind generator in the conditions with minimum distance of blades from the shaft
  • FIG. 5 shows the wind generator in transport position
  • the fixing set 1 of elements consists of arms 5 mutually interconnected by joints, draw-bars 8 and servo-mechanism 9 .
  • Joint mechanisms each with three inner joints 6 , which are arranged in the shape of “Y” letter and mutually symmetrically shifter by 120°, are provided in the upper part of the shaft 2 in two planes (upper and lower).
  • One arm 5 is attached to each inner joint 6 , and there are six arms in total.
  • the control unit 13 sends the signal to the servo-mechanism 9 for shifting draw-bars 8 in the upward direction, what turns arms 5 so that the angle a increases. Thereby the distance L is increased, what causes increase of the generator’s power output, whereby revolutions of the shaft 2 increase.
  • the blade longitudinal axis 10 remains parallel with the shaft longitudinal axis 11 in any distance L and any angle a .
  • draw-bars 8 When transport of the generator ( Figure 4, Figure 5) is needed, draw-bars 8 are shifted by the servo-mechanism 9 downwards to the lowest position. Thereby arms 5 are turned in such manner that the angle a equals to zero and the distance L between blades 3 and the shaft 2 remains minimum. Thereby minimum total volume of the generator for easier transport is achieved. For re-activation of the generator, draw-bars 8 are shifted upwards for increasing its volume.

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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

The wind generator with vertical rotation axis, in particular for mobile applications, consisting of at least two blades (3), which are attached on the central shaft (2) by means of fixing set (1) of elements, forming the shifting mechanism for continuous change of the distance (L) between blades (3) and the shaft (2). The longitudinal axis (10) of each blade (3) is parallel with longitudinal axis (11) of the shaft (2). Each blade (3) is connected by joints with the shaft (2) by means of at least two arms (5) and at least one draw-bar (8) connected with servo-mechanism (9) is attached on least one of them for adjusting the angle (a) between shaft longitudinal axis (11) towards the arm (5) and thereby also for change of the distance (L) between blades (3) and the shaft (2).

Description

Wind generator with vertical rotation axis, in particular for mobile applications Technical Field
The present invention relates to the wind generator with vertical rotation axis, in particular for mobile applications designed for generation of electric, mechanical or other form of energy.
Background Art
Presently known wind generators with vertical rotation axis, in particular for mobile applications are designed so that fixing set of elements for attaching blades includes only mechanism for power output regulation. The mechanism for reducing volume when changing working position to transport one is either not designed at all or solved by complicated additional operations. Attachment mechanisms of blades of wind generators with vertical rotation axis including mechanism for power output regulation by change of working blades position to the rotating shaft are solved for instance in patents US4087202, US4105363, US2008/0095608 A1. In these systems, power output (revolutions) regulation of wind generators is done by change of angle forming longitudinal axis of working blade with longitudinal axis of rotating shaft. Additional operations has to be done for transition from working position into transport one. Pair of arms in the RU2364748 C1 patent is connected on the side of working blade with one console, on which there is working blade attached in rotary manner. Change of blades rotation diameter and therefore also volume of the generator is done by mechanism with geared segment placed on the arm in the part of rotating shaft.
Shortcoming of mentioned designs is that they deal only with ability of regulation of power output at high wind speeds, or by change of angle of working blade pitch during its rotation around the shaft. They do not solve the possibility of reducing wind generator volume to the smallest possible volume in transportation position, or incorporating system for change from working position into transport position into the system for power output regulation.
Disclosure of Invention
Mentioned disadvantages are eliminated to the substantial degree by the wind generator with vertical rotation axis, in particular for mobile applications, consisting of at least two blades, which are attached on the central shaft by means of fixing set of elements, according to the present invention, the substance whereof resides in that the fixing set of elements is constructed as shifting mechanism for continuous change of the distance between blades and the shaft, and thereby also for regulation of the generator’s power output in the working position during rotation of blades, as well as for reducing its volume at change of working position to transport one during stagnation of blades, while longitudinal axis of each blade is parallel with longitudinal axis of the shaft.
Sliding mechanism consists of arms mutually interconnected by joints, draw-bars and servo-mechanism.
At least two arms are connected by joints to each blade, and at least one draw-bar connected with servo-mechanism is attached on least one of arms.
The servo-mechanism serves for adjusting the angle between shaft longitudinal axis and the arm and thereby also for change of the distance between blades and the shaft.
Each of blades is advantageously connected with the arm by means of outer joint, the bearing surface whereof is structurally arranged according to the blade profile.
The arm is advantageously connected with the shaft by means of internal joint, which is provided as part of the shaft.
The servo-mechanism is interconnected with control unit, which is connected to driven device and/or its revolutions sensor.
The advantage of mentioned design is that simple construction of shifting fixing mechanism of blades is used for regulation of the generator’s power output as well as for reducing its volume at change of working position to transport one.
Brief Description of Drawings
The design is further elucidated on enclosed figures, where:
Figure 1 shows basic construction of the wind generator in working position
Figure 2 shows the wind generator in the conditions with maximum distance of blades from the shaft
Figure 3 shows the wind generator in the conditions with reduced distance of blades from the shaft
Figure 4 shows the wind generator in the conditions with minimum distance of blades from the shaft
Figure 5 shows the wind generator in transport position
Mode(s) for Carrying Out the Invention
Lower part of the shaft 2 is placed vertically in the central construction 21 (Figure 1) by means of roller bearings. The fixing set 1 of elements consists of arms 5 mutually interconnected by joints, draw-bars 8 and servo-mechanism 9. Joint mechanisms, each with three inner joints 6, which are arranged in the shape of “Y” letter and mutually symmetrically shifter by 120°, are provided in the upper part of the shaft 2 in two planes (upper and lower). One arm 5 is attached to each inner joint 6, and there are six arms in total. There is one blade 3 attached on ends of each pair of arms 5 (upper and lower), by means of two outer joints 7, bearing surface whereof is formed according to the blade 3 profile. Vertical draw-bars 8 are attached on all three upper arms 5 by their upper ends. Their lower ends are connected in the servo-mechanism 9 placed on the central construction 21. Lower end of the shaft 2 is connected with driven device 4 (Figure 2), which includes revolutions sensor 12. The control unit 13 is connected to the revolutions sensor 12 as well as to the servo-mechanism 9 for its control.
When the generator is active, the wind pushes by its force to blades 3 and these transfer the torque through arms 5 to the shaft 2, which is rotating in the central construction 21. Rotating shaft 2 acts upon driven device 4. Revolutions sensor 12 evaluates rotation speed, which is transferred to the control unit 13. When upper limit rotation speed is exceeded, the control unit 13 sends the signal into the servo-mechanism 9. This, by shifting draw-bars 8 in the downwards direction, turns arms 5 (Figure 3) in such manner that it reduces the angle a between shaft longitudinal axis 11 and the arm 5. Thereby the distance L between blades 3 and the shaft 2 is reduced, what causes decrease of the generator’s power output, whereby revolutions of the shaft 2 decrease. When the rotation speed drops below lower limit value, the control unit 13 sends the signal to the servo-mechanism 9 for shifting draw-bars 8 in the upward direction, what turns arms 5 so that the angle a increases. Thereby the distance L is increased, what causes increase of the generator’s power output, whereby revolutions of the shaft 2 increase. According to used construction of two parallel arms 5 for each blade 3, the blade longitudinal axis 10 remains parallel with the shaft longitudinal axis 11 in any distance L and any angle a.
When transport of the generator (Figure 4, Figure 5) is needed, draw-bars 8 are shifted by the servo-mechanism 9 downwards to the lowest position. Thereby arms 5 are turned in such manner that the angle a equals to zero and the distance L between blades 3 and the shaft 2 remains minimum. Thereby minimum total volume of the generator for easier transport is achieved. For re-activation of the generator, draw-bars 8 are shifted upwards for increasing its volume.

Claims (5)

  1. The wind generator with vertical rotation axis, in particular for mobile applications, consisting of at least two blades, which are attached on the central shaft by means of fixing set of elements, characterized in that the fixing set (1) of elements forms the shifting mechanism for continuous change of the distance (L) between blades (3) and the shaft (2), which is attached to the driven device (4), and thereby also for regulation of the generator’s power output in the working position during rotation of blades (3), as well as for reducing its volume from working position to transport one during stagnation of blades (3), while longitudinal axis (10) of each blade (3) is parallel with longitudinal axis (11) of the shaft (2) in working as well as transport position.
  2. The wind generator according to the claim 1 characterized in that the fixing set (1) of elements consists of arms (5) mutually connected by joints, draw-bars (8) and servo-mechanism (9).
  3. The wind generator according to the claims 1 and 2 characterized in that at least two arms (5) are connected by joints to each blade (3), and at least one draw-bar (8) connected with servo-mechanism (9) is attached on at least one of arms for adjusting angle (a) between shaft longitudinal axis (11) and the arm (5) and thereby also for change of the distance (L) between blades (3) and the shaft (2).
  4. The wind generator according to the claims 1 to 3 characterized in that each of blades (3) is connected with the arm (5) by means of outer joint (7), the bearing surface whereof is structurally arranged according to the blade profile (3) and the arm (5) is connected with the shaft (2) by means of internal joint (6), which is provided as part of the shaft (2).
  5. The wind generator according to the claims 1 to 4 characterized in that the servo-mechanism (9) is interconnected with the control unit (13) for controlling and regulating change of the distance (L) between the blades (3) and the shaft (2), which is interconnected with driven device (4) and/or its revolutions sensor (12).
PCT/SK2011/050001 2010-02-25 2011-02-24 Wind generator with vertical rotation axis, in particular for mobile applications WO2011105970A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11728714A EP2539583A2 (en) 2010-02-25 2011-02-24 Wind generator with vertical rotation axis, in particular for mobile applications

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SKPP50006-2010 2010-02-25
SK50006-2010A SK500062010A3 (en) 2010-02-25 2010-02-25 Wind generator with vertical rotation axis, particularly for mobile use

Publications (3)

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WO2011105970A2 true WO2011105970A2 (en) 2011-09-01
WO2011105970A3 WO2011105970A3 (en) 2012-03-08
WO2011105970A4 WO2011105970A4 (en) 2012-05-10

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SK (1) SK500062010A3 (en)
WO (1) WO2011105970A2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013114402A3 (en) * 2012-02-01 2013-10-10 Prakash Prabhakar Pawar Vertical axis wind turbine with a variable rotor diameter
ES2449669A1 (en) * 2013-12-13 2014-03-20 Federico MENDIETA ECHEVARRIA Vertical axis wind turbine with low visual impact (Machine-translation by Google Translate, not legally binding)
ITUB20159461A1 (en) * 2015-11-26 2017-05-26 Alberto Donini WIND TURBINE FOR VERTICAL AXLE BOATS WITH A REFILLABLE PARALLEL BLADE
ES2671584A1 (en) * 2016-12-07 2018-06-07 Amador GAZQUEZ BENITEZ Adjustable vertical axis wind turbine (Machine-translation by Google Translate, not legally binding)
WO2018178120A1 (en) * 2017-03-27 2018-10-04 Elemental Engineering Ag Vertical axis wind turbine generator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112145342B (en) * 2020-10-13 2022-11-08 福建凯威斯发电机有限公司 Wind-gathering type vertical axis wind driven generator

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087202A (en) 1975-07-21 1978-05-02 National Research Development Corporation Vertical axis wind turbines
US4105363A (en) 1976-06-14 1978-08-08 Loth John Lodewyk Overspeed control arrangement for vertical axis wind turbines
GB2427003A (en) 2005-06-06 2006-12-13 Steven Peace Portable renewable energy apparatus
US20080095608A1 (en) 2006-08-07 2008-04-24 Boatner Bruce E Vertical axis wind turbine with articulating rotor
WO2008104060A1 (en) 2007-02-27 2008-09-04 Vaxsis Inc. Collapsible vertical-axis turbine
RU2364748C1 (en) 2008-03-14 2009-08-20 Сергей Федорович Бокарев Method for control of wind-powered engine rotor rotation frequency with vertical axis and wind-powered engine for its realisation
US20100172759A1 (en) 2009-01-08 2010-07-08 Sullivan John T Retractable wind turbines
WO2010148071A1 (en) 2009-06-16 2010-12-23 Northeastern University Collapsible reaction turbine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087202A (en) 1975-07-21 1978-05-02 National Research Development Corporation Vertical axis wind turbines
US4105363A (en) 1976-06-14 1978-08-08 Loth John Lodewyk Overspeed control arrangement for vertical axis wind turbines
GB2427003A (en) 2005-06-06 2006-12-13 Steven Peace Portable renewable energy apparatus
US20080095608A1 (en) 2006-08-07 2008-04-24 Boatner Bruce E Vertical axis wind turbine with articulating rotor
WO2008104060A1 (en) 2007-02-27 2008-09-04 Vaxsis Inc. Collapsible vertical-axis turbine
RU2364748C1 (en) 2008-03-14 2009-08-20 Сергей Федорович Бокарев Method for control of wind-powered engine rotor rotation frequency with vertical axis and wind-powered engine for its realisation
US20100172759A1 (en) 2009-01-08 2010-07-08 Sullivan John T Retractable wind turbines
WO2010148071A1 (en) 2009-06-16 2010-12-23 Northeastern University Collapsible reaction turbine

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013114402A3 (en) * 2012-02-01 2013-10-10 Prakash Prabhakar Pawar Vertical axis wind turbine with a variable rotor diameter
ES2449669A1 (en) * 2013-12-13 2014-03-20 Federico MENDIETA ECHEVARRIA Vertical axis wind turbine with low visual impact (Machine-translation by Google Translate, not legally binding)
WO2015086872A1 (en) * 2013-12-13 2015-06-18 Mendieta Echevarría Federico Vertical axis wind turbine with low visual impact
US9989037B2 (en) 2013-12-13 2018-06-05 Federico MENDIETA ECHEVARRIA Vertical axis wind turbine with low visual impact
ITUB20159461A1 (en) * 2015-11-26 2017-05-26 Alberto Donini WIND TURBINE FOR VERTICAL AXLE BOATS WITH A REFILLABLE PARALLEL BLADE
ES2671584A1 (en) * 2016-12-07 2018-06-07 Amador GAZQUEZ BENITEZ Adjustable vertical axis wind turbine (Machine-translation by Google Translate, not legally binding)
WO2018178120A1 (en) * 2017-03-27 2018-10-04 Elemental Engineering Ag Vertical axis wind turbine generator
CN110719997A (en) * 2017-03-27 2020-01-21 元素工程公司 Vertical axis wind turbine generator
CN110719997B (en) * 2017-03-27 2021-06-29 元素工程公司 Vertical axis wind turbine generator
US11060505B2 (en) 2017-03-27 2021-07-13 Elemental Engineering Ag Vertical axis wind turbine generator

Also Published As

Publication number Publication date
WO2011105970A4 (en) 2012-05-10
SK500062010A3 (en) 2011-09-05
WO2011105970A3 (en) 2012-03-08
EP2539583A2 (en) 2013-01-02

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