EP2109714A2 - Aérogénérateur - Google Patents

Aérogénérateur

Info

Publication number
EP2109714A2
EP2109714A2 EP07866841A EP07866841A EP2109714A2 EP 2109714 A2 EP2109714 A2 EP 2109714A2 EP 07866841 A EP07866841 A EP 07866841A EP 07866841 A EP07866841 A EP 07866841A EP 2109714 A2 EP2109714 A2 EP 2109714A2
Authority
EP
European Patent Office
Prior art keywords
blades
shell
rotor
aerogenerator
aerogenerator according
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Withdrawn
Application number
EP07866841A
Other languages
German (de)
English (en)
Inventor
Franco Tozzi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2109714A2 publication Critical patent/EP2109714A2/fr
Withdrawn legal-status Critical Current

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 
    • F03D3/04—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels
    • F03D3/0436—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels for shielding one side of the rotor
    • F03D3/0472—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels for shielding one side of the rotor the shield orientation being adaptable to the wind motor
    • 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
    • F05B2250/00—Geometry
    • F05B2250/70—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 an aerogenerator. It is known that aerogenerators are still not very- widespread and this is mainly due to their energetic efficiency, which is very low, to their high construction costs and, above all, to the environmental impact that they determine from a landscaping point of view.
  • the main aim of the present invention is to eliminate, or at least to remarkably reduce said inconveniences. According to the present invention, these results have been achieved by adopting the idea of building a device having the features described in claim 1. Further features of the present invention are the subject of the dependent claims .
  • An aerogenerator according to the present invention is easy ad economical to build, it is reliable and capable of functioning with the utmost efficiency even with weak intensity winds. Moreover, an aerogenerator according to the present invention has a very high energetic efficiency and its impact on the environment is very low.
  • Fig. 1 shows a schematic perspective view i ' n transparency of an aerogenerator according to the present invention
  • Fig. 2 and Fig. 3 show two schematic plan views of the generator of Fig. 1 with its external shell in the same position and its blades rotated a fraction of a turn;
  • Fig. 4 shows another perspective transparency view of an aerogenerator according to the present invention
  • Fig 5 and Fig. 6 show two schematic plan views of the generator of Fig. 1 with the external shell rotated a fraction of a turn;
  • Fig. 7 and Fig. 8 show two alternative examples of an aerogenerator in accordance with the present invention.
  • Fig. 9 shows a schematic perspective view of the shell (2) alone.
  • an aerogenerator in accordance with the present invention comprises a vertical-axis rotor with a hub onto which a plurality of blades (1) is fixed and a shell (2) which delimits an opening for the blades and for the rotor hub.
  • An electric generator (which known per se, so it is not shown in the enclosed drawings) is connected on the said axis (y) .
  • the shell (2) is mounted free to rotate on the rotor hub and is provided with an overhead sail (3) which acts as a wind direction alignment rudder.
  • the shell (20) features an upper wall (20) , a semi- perimetral edge (21) and a lower wall (22).
  • the sail (3) is applied onto the upper wall (20) of the shell (2).
  • the sail is horizontally "V"- shaped with its apex turned towards the rotor axis so as to guarantee a greater stability of the system.
  • first arched side (201) having a shape which corresponds to that of the said edge (21) , a second side (202) which radially connects one end (El) of the first side with the corresponding centre (C) , and a third side (203) which has the same curved profile as that of the blades (1) and connects the other end (E2) ' of the first side (201) with said centre (C) .
  • Said first side (201) is a circle arch with its centre (C) on the rotor axis and an angular extension which exceeds 180 °. When assembled, the walls (20) and (22) of the shell (2) are horizontal.
  • the edge (21) which connects said walls (20, 22) has the same shape as that of the ends (11) of the blades (D •
  • the blades are so mounted that they feature one side (10) which is exposed to the wind (V) .
  • the side (10) of the blades (1) which is destined to be exposed to the action of the wind (V) is concave.
  • the third side (203) of the walls (20) and (22) of the shell (2) features a concave part turned towards the first side (201) and a counterposed convex part turned out- ward.
  • the lower wall (22) is identical to the upper wall (20) . Due to the structure of the shell (2) described above, the wind strikes only the blades (1) which, instant by instant, are external to the shell (2) without striking the internal blades. Therefore, the action of the wind on the blades (1) is only active, as it does not affect its convex side and does not hinder their rotation.
  • arrow "RR” indicates the direction of rotation of the blades (1) under the action of the wind (V)
  • arrows “RG” represent the rotation of the shell (2) when the wind changes direction.
  • the blades (1) feature an opening (LP) along a portion which is comprised between the root and the central zone.
  • each of said blades (1) features a diverging extension (12) on the side opposite to the active side
  • the blades are connected by a circular-section cylindrical surface (SC) which is centered onto the rotor axis and leaves only the portion of the blades which is farther from the rotor axis exposed to the action of the wind.
  • SC circular-section cylindrical surface
  • the whole device can be installed onto a support structure which can be fixed or telescopic. In the latter case, the generator can be positioned at the most convenient height according to the wind and it can also be interred and used during the evening and night hours so that it does not spoil the landscape.
  • the shell (2) can also be connected to an automatic directioner which can be oriented according to the direction and intensity of the wind detected by sensors (which are known per se).In this case, if necessary, the shell can be so disposed that it intercepts the wind and prevents it from striking the blades (1) .
  • a brake can also be foreseen, advantageously of the magnetic type, fed by the energy produced in excess by the generator itself which overcomes a predetermined number of turns and acts on the (y) axis so as to hold the rotational speed thereof within a predetermined limit.
  • the execution details may equally vary as regards shape, disposition and size of the single elements and kind of material used, within the solution idea that has been adopted and within the limits of the protection offered by the present patent.

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 Pulverization Processes (AREA)
  • Rotary Pumps (AREA)

Abstract

L'invention concerne un aérogénérateur comprenant un rotor à axe vertical pourvu d'un moyeu sur lequel est fixée une pluralité de pales, caractérisé en ce qu'il se compose d'une coquille (2) qui délimite une ouverture dans laquelle sont logés les pales et le moyeu du rotor, cette coquille présentant une paroi supérieure (20), un bord semi-périmétrique (21) et une paroi inférieure (22). Ladite paroi supérieure (20) et ladite paroi inférieure (22) comportent un côté (203) présentant le même profil courbe que celui des pales (1).
EP07866841A 2006-12-27 2007-12-21 Aérogénérateur Withdrawn EP2109714A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000339A ITFI20060339A1 (it) 2006-12-27 2006-12-27 Generatore eolico
PCT/IT2007/000910 WO2008078354A2 (fr) 2006-12-27 2007-12-21 Aérogénérateur

Publications (1)

Publication Number Publication Date
EP2109714A2 true EP2109714A2 (fr) 2009-10-21

Family

ID=39563047

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07866841A Withdrawn EP2109714A2 (fr) 2006-12-27 2007-12-21 Aérogénérateur

Country Status (3)

Country Link
EP (1) EP2109714A2 (fr)
IT (1) ITFI20060339A1 (fr)
WO (1) WO2008078354A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011100446A1 (de) * 2011-05-02 2012-11-08 Gennadiy Grinvaks Horizontalle Wasserturbine "Schnecke"
WO2013053874A2 (fr) * 2011-10-14 2013-04-18 Gursel Mustafa Seyfi Éolienne

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4031405A (en) * 1975-08-04 1977-06-21 Paul Asperger Windmill with shroud adjusting means
FR2369442A1 (fr) * 1976-10-29 1978-05-26 Gil Noel Moteur a vent pour propulser un vehicule sur eau ou sur terre
JPS60219473A (ja) * 1984-04-12 1985-11-02 Mikio Mizusaki 風車
DE8712757U1 (de) * 1987-09-22 1988-03-10 Marx, Peter, 6686 Eppelborn Schutzglocke
TWI255880B (en) * 2004-06-04 2006-06-01 Tai-Her Yang Guided fluid driven turbine
US7235893B2 (en) * 2005-04-14 2007-06-26 Platt Michael D Reduced friction wind turbine apparatus and method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008078354A2 *

Also Published As

Publication number Publication date
WO2008078354A3 (fr) 2009-02-12
ITFI20060339A1 (it) 2008-06-28
WO2008078354A2 (fr) 2008-07-03

Similar Documents

Publication Publication Date Title
US7008172B2 (en) Side-furling co-axial multi-rotor wind turbine
US8598731B2 (en) Rimmed turbine
US7258527B2 (en) Vertical axis wind engine
EP2735733A1 (fr) Générateur éolien magnus de type à axe vertical
KR101179702B1 (ko) 회전 효율을 향상시킨 풍력 발전 장치
US20180142673A1 (en) Vertical axis wind turbine with automatic adjustment of blade angle based on centrifugal force
US20150110598A1 (en) Vertical Axis Wind Turbine with Wind Vanes
US20130017084A1 (en) High efficiency verical axis wind turbine
CA2665146A1 (fr) Generateur d'eolienne
WO2010071850A2 (fr) Éolienne à axe vertical à multiples rotors
CN103052792A (zh) 垂直轴风轮机
US8240977B2 (en) Wind collector device for generation of energy
CA2636511A1 (fr) Ensemble de freins a volets pour eolienne
US20140050588A1 (en) Device for using wind power having at least one rotor
US10060413B2 (en) Wind turbine with automatic tilting frame for unloading damaging winds encountered by wind turbines
JP2005090332A (ja) ダリウス形風車
CN1906408A (zh) 风轮机
WO2008078354A2 (fr) Aérogénérateur
US9284946B2 (en) Vertical axis windmill with passive over-speed protection
JP3766845B2 (ja) 風力発電装置
KR101266783B1 (ko) 수직형 풍력발전용 풍력증강장치
KR101033009B1 (ko) 풍력발전용 풍차의 회전날개
WO2015109661A1 (fr) Ensemble générateur de turbine éolienne à arbre vertical du type à ailes déployables et à pales oscillantes
US11421649B2 (en) Horizontal and vertical axis wind generator
KR101566501B1 (ko) 휘어진 블레이드 팁을 갖는 다운윈드 풍력 발전 장치

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

17P Request for examination filed

Effective date: 20090723

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
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: 20120703