WO2009093909A1 - Turbine arrangement - Google Patents

Turbine arrangement Download PDF

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Publication number
WO2009093909A1
WO2009093909A1 PCT/NO2009/000022 NO2009000022W WO2009093909A1 WO 2009093909 A1 WO2009093909 A1 WO 2009093909A1 NO 2009000022 W NO2009000022 W NO 2009000022W WO 2009093909 A1 WO2009093909 A1 WO 2009093909A1
Authority
WO
WIPO (PCT)
Prior art keywords
turbine
screw
turbine arrangement
arrangement
bottom mount
Prior art date
Application number
PCT/NO2009/000022
Other languages
French (fr)
Inventor
Jan Inge Eielsen
Original Assignee
Flucon As
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 Flucon As filed Critical Flucon As
Priority to BRPI0906377-3A priority Critical patent/BRPI0906377A2/en
Priority to AU2009206829A priority patent/AU2009206829B2/en
Priority to EP09704896A priority patent/EP2245302A4/en
Priority to AP2010005300A priority patent/AP3047A/en
Priority to CN2009801019727A priority patent/CN101910622B/en
Priority to NZ586927A priority patent/NZ586927A/en
Priority to RU2010133623/06A priority patent/RU2487262C2/en
Priority to US12/747,663 priority patent/US20100266406A1/en
Priority to CA2709527A priority patent/CA2709527A1/en
Publication of WO2009093909A1 publication Critical patent/WO2009093909A1/en
Priority to ZA2010/05985A priority patent/ZA201005985B/en

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
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B17/00—Other machines or engines
    • F03B17/06—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
    • F03B17/061—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially in flow direction
    • 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
    • F05B2240/24—Rotors for turbines
    • F05B2240/243—Rotors for turbines of the Archimedes screw type
    • 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
    • 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
    • Y02E10/20—Hydro energy
    • 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
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient

Definitions

  • This invention relates to a turbine arrangement. More particularly, it relates to a turbine arrangement for extracting energy from flowing water, the turbine arrangement including a screw turbine with a suspension means, buoyancy element and bottom mount and also necessary transmission elements for transmitting energy to a power machine .
  • tidal mills are used, in which a structure resembling a wind mill is placed on the seabed.
  • the blades of the tidal mill sweep a relatively large area.
  • Considerable forces arise, which must be absorbed by a large and heavy tower structure.
  • Some prior art tower structures also project above the sea surface, which may have a disfiguring effect and be a hindrance to shipping.
  • the invention has for its object to remedy or reduce at least one of the drawbacks of the prior art .
  • a turbine arrangement for extracting energy from flowing water, the turbine arrangement including a screw turbine with a suspension means, buoyancy element and bottom mount, and also necessary transmission elements for transmit- ting energy to a power machine, and the turbine arrangement including at least two parallel screw turbines.
  • An aspect of the turbine arrangement is that adjacent screw turbines are of opposite pitches and are arranged to overlap each other. A transmission connection between the adjacent screw turbines ensures that the screw turbines will rotate at the same speed.
  • the adjacent screw turbines may thereby be spaced apart by a centre distance which is smaller than the diameter of the screw turbines, which reduces the flow opening between the screw turbines. This condition provides for improved utilization of the flowing water.
  • the two screw turbines rotate in opposite directions and are therefore affected symmetrically by the flowing water.
  • the power machine may be arranged coaxially with the centre axis of the screw turbine, for example, or in another position.
  • the rotational speed of the power machine relative to the screw turbine can be determined by means of the transmission ratio of. the transmission transmitting the energy from the screw turbine to the power machine .
  • Another aspect of the turbine arrangement is that it is ro- tatably connected to the bottom mount.
  • the turbine arrangement thereby aligns itself with the direction of flow of the water.
  • the turbine arrangement takes an angle relative to the horizontal plane which is favourable in relation to the pitch of the screw turbine. The angle is controlled by adjusting the buoyancy of the turbine arrangement to the flow force to which the turbine assembly is subjected.
  • a further aspect of the turbine arrangement is that the buoyancy element is constituted by the screw turbine.
  • the screw turbine is manufactured at least partially of 5 a material which has a lower density than water.
  • the bottom mount is formed with a quick coupling for the turbine arrangement.
  • the turbine arrangement is arranged to be detached relativelyo easily and be moved between the bottom mount and the surface, for example along one or more guide cables .
  • the bottom mount can be constituted by a foundation of a construction known per se, for example a suction anchor.
  • the bottom mount is provided with the necessary couplings fors transmitting energy from the power machine.
  • the power machine is constituted by an electric generator, but may also be constituted by a pump, for example.
  • the flowing water principally sets up a pressure against the portions of the screw turbines which are on the outside of the centre axis of the screw turbine relative to the adjacent screw turbine.
  • the cross section of the screw turbine is given an aerofoil profile. Water flowing along the screw turbine thereby subjects the aerofoil profile to a lifting force, a component of the lifting force seeking to rotate the screw turbine around the turbine axis of the screw turbine.
  • the turbine arrangement accord- ing to the invention provides a substantial simplification of the task of extracting energy from flowing sea water.
  • the construction is considerably simpler because the bottom mount is not subjected to bending moments.
  • the turbine arrangement according to the invention is also well suited for use in relatively shallow regions and could thereby conceivably also be used in river courses .
  • FIG. 1 shows schematically a turbine arrangement in accordance with the invention
  • Figure 2 shows schematically a side view of the turbine arrangement
  • Figure 3 shows schematically an end view II-II of figure 2 ; and Figure 4 shows a section of a screw turbine .
  • the reference numeral 1 indicates a turbine arrangement comprising a first screw turbine 2 and a second screw turbine 4.
  • the screw turbines 2 , 4 are rotatable around, respectively, a first turbine axis 6 and a second turbine axis 8.
  • the screw turbines 2, 4 are supported in a suspension means 10 which is connected to a bottom mount 12 which is placed in the seabed 14.
  • the suspension means 10 is rotatable around a vertical axis 16 relative to the bottom mount 12 and around a rotatable horizontal axis 18.
  • the two screw turbines 2, 4, which are of opposite pitches and rotate in opposite directions of rotation, are connected to each other by means of a transmission 20.
  • Each of the screw turbines 2, 4 is connected to a respective power machine 22 which is formed, in this preferred exemplary embodiment, by an electric generator. Necessary wiring is not shown.
  • a rotary suspension means 24 is arranged in the bottom mount 12.
  • the rotary suspension means 24 is arranged to be locked in a relatively simple manner, known per se, to the bottom mount 12 and to be detached from the bottom mount 12 to be moved between the bottom mount 12 and the surface by means of guide cables, not shown.
  • a cross section 26 of the first screw turbine 2 is shown in figure 4.
  • the cross section 26 is given an aerofoil profile which brings water, which is flowing approximately parallel to the cross section 26, to apply a lifting force to the first screw turbine 2, resulting in a torque around the first turbine axis 6.
  • the screw turbines 2, 4 are formed with a pitch "S” resulting in a pitch angle "a”, see figure 2.
  • the screw turbines 2, 4 are formed in a relatively light material and are thus provided with buoyancy.
  • the angle "b" approximately equals the pitch angle "a”.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Hydraulic Turbines (AREA)

Abstract

A turbine arrangement (1) for extracting energy from flowing water, the turbine arrangement including a screw turbine (2, 4) with a suspension means (10), buoyancy element and bottom mount (12), and necessary transmission elements for transmitting energy to a power machine (22), and the turbine arrangement (1) including at least two parallel screw turbines (2, 4).

Description

TURBINE ARRANGEMENT
This invention relates to a turbine arrangement. More particularly, it relates to a turbine arrangement for extracting energy from flowing water, the turbine arrangement including a screw turbine with a suspension means, buoyancy element and bottom mount and also necessary transmission elements for transmitting energy to a power machine .
It is well known that, for example, tidal flows contain considerable amounts of energy. However, it has turned out to be connected with considerable challenges to extract energy of some significance from tidal flows.
According to the prior art, so-called tidal mills are used, in which a structure resembling a wind mill is placed on the seabed. The blades of the tidal mill sweep a relatively large area. Considerable forces arise, which must be absorbed by a large and heavy tower structure. Some prior art tower structures also project above the sea surface, which may have a disfiguring effect and be a hindrance to shipping.
The invention has for its object to remedy or reduce at least one of the drawbacks of the prior art .
The object is achieved according to the invention through the features which are specified in the description below and in the claims that follow. A turbine arrangement is provided for extracting energy from flowing water, the turbine arrangement including a screw turbine with a suspension means, buoyancy element and bottom mount, and also necessary transmission elements for transmit- ting energy to a power machine, and the turbine arrangement including at least two parallel screw turbines.
An aspect of the turbine arrangement is that adjacent screw turbines are of opposite pitches and are arranged to overlap each other. A transmission connection between the adjacent screw turbines ensures that the screw turbines will rotate at the same speed.
The adjacent screw turbines may thereby be spaced apart by a centre distance which is smaller than the diameter of the screw turbines, which reduces the flow opening between the screw turbines. This condition provides for improved utilization of the flowing water. The two screw turbines rotate in opposite directions and are therefore affected symmetrically by the flowing water.
The power machine may be arranged coaxially with the centre axis of the screw turbine, for example, or in another position. The rotational speed of the power machine relative to the screw turbine can be determined by means of the transmission ratio of. the transmission transmitting the energy from the screw turbine to the power machine .
Another aspect of the turbine arrangement is that it is ro- tatably connected to the bottom mount. The turbine arrangement thereby aligns itself with the direction of flow of the water. Besides, the turbine arrangement takes an angle relative to the horizontal plane which is favourable in relation to the pitch of the screw turbine. The angle is controlled by adjusting the buoyancy of the turbine arrangement to the flow force to which the turbine assembly is subjected.
A further aspect of the turbine arrangement is that the buoyancy element is constituted by the screw turbine. For example, the screw turbine is manufactured at least partially of 5 a material which has a lower density than water.
Yet another aspect of the turbine arrangement is that the bottom mount is formed with a quick coupling for the turbine arrangement. Thereby, with the exception of the bottom mount, the turbine arrangement is arranged to be detached relativelyo easily and be moved between the bottom mount and the surface, for example along one or more guide cables .
The bottom mount can be constituted by a foundation of a construction known per se, for example a suction anchor. The bottom mount is provided with the necessary couplings fors transmitting energy from the power machine. With advantage, the power machine is constituted by an electric generator, but may also be constituted by a pump, for example.
It is possible to maintain a desired angle between the screw turbine and the horizontal plane by controlling the powero output of the power machine, wherein a reduced power output will have the effect of the buoyancy, which seeks to pivot the turbine arrangement into a vertical position, pivoting the turbine arrangement into a larger angle relative to the horizontal plane. 5 By the fact that the turbine arrangement is kept suspended by means of buoyancy and aligns itself with the direction of flow, the bottom mount is subjected to insignificant torques. The forces transmitted to the bottom mount are formed in the main by tensional forces from the suspension. o The water flowing towards the portions of the screw turbine facing the water flow at any time exerts a pressure on the screw turbine. The flowing water principally sets up a pressure against the portions of the screw turbines which are on the outside of the centre axis of the screw turbine relative to the adjacent screw turbine. By this cooperation between two screw turbines there will be a symmetry in the power distribution which brings the turbine arrangement to align itself in a favourable manner with the direction of flow.
With advantage, the cross section of the screw turbine is given an aerofoil profile. Water flowing along the screw turbine thereby subjects the aerofoil profile to a lifting force, a component of the lifting force seeking to rotate the screw turbine around the turbine axis of the screw turbine.
In relation to the prior art, the turbine arrangement accord- ing to the invention provides a substantial simplification of the task of extracting energy from flowing sea water. The construction is considerably simpler because the bottom mount is not subjected to bending moments. The turbine arrangement according to the invention is also well suited for use in relatively shallow regions and could thereby conceivably also be used in river courses .
In what follows is described an example of a preferred embodiment which is visualized in the accompanying drawings, in which:
Figure 1 shows schematically a turbine arrangement in accordance with the invention;
Figure 2 shows schematically a side view of the turbine arrangement ;
Figure 3 shows schematically an end view II-II of figure 2 ; and Figure 4 shows a section of a screw turbine .
In the drawings, the reference numeral 1 indicates a turbine arrangement comprising a first screw turbine 2 and a second screw turbine 4. The screw turbines 2 , 4 are rotatable around, respectively, a first turbine axis 6 and a second turbine axis 8.
The screw turbines 2, 4 are supported in a suspension means 10 which is connected to a bottom mount 12 which is placed in the seabed 14. The suspension means 10 is rotatable around a vertical axis 16 relative to the bottom mount 12 and around a rotatable horizontal axis 18.
The two screw turbines 2, 4, which are of opposite pitches and rotate in opposite directions of rotation, are connected to each other by means of a transmission 20.
Each of the screw turbines 2, 4 is connected to a respective power machine 22 which is formed, in this preferred exemplary embodiment, by an electric generator. Necessary wiring is not shown.
A rotary suspension means 24 is arranged in the bottom mount 12. The rotary suspension means 24 is arranged to be locked in a relatively simple manner, known per se, to the bottom mount 12 and to be detached from the bottom mount 12 to be moved between the bottom mount 12 and the surface by means of guide cables, not shown.
A cross section 26 of the first screw turbine 2 is shown in figure 4. The cross section 26 is given an aerofoil profile which brings water, which is flowing approximately parallel to the cross section 26, to apply a lifting force to the first screw turbine 2, resulting in a torque around the first turbine axis 6. The screw turbines 2, 4 are formed with a pitch "S" resulting in a pitch angle "a", see figure 2.
The screw turbines 2, 4 are formed in a relatively light material and are thus provided with buoyancy.
When the water surrounding the turbine arrangement 1 is stagnant, the buoyancy of the screw turbines 2, 4 will seek to adjust the turbine arrangement 1 around the horizontal axis 18 so that the turbine axes 6, 8 take a vertical direction.
As the water flow increases, the turbine arrangement 1 ad- justs in relation to the direction of flow by rotating around the vertical axis 16. At the same time, the flow forces seek to pivot the turbine-turbine arrangement 1 around the horizontal axis 18 so that the turbine axes 6, 8 take an angle "b" to the horizontal plane, see figure 2.
Preferably, the angle "b" approximately equals the pitch angle "a".
The flow force from the flowing water affecting the screw turbines 2, 4 bring the screw turbines 2 , 4 to rotate around their respective turbine axes 6, 8, whereby energy is trans- mitted to the power machines 22.

Claims

C l a i m s
1. A turbine arrangement (1) for extracting energy from flowing water, the turbine arrangement including a screw turbine (2, 4) with a suspension means (10),
5 buoyancy element and bottom mount (12) , and necessary transmission elements for transmitting energy to a power machine (22) , the turbine arrangement (1) including at least two parallel screw turbines (2, 4), c h a r a c t e r i z e d i n that two adjacento screw turbines (2, 4) have opposite pitches and overlap each other
2. The device in accordance with claim 1, c h a r a c t e r i z e d i n that the buoyancy element is constituted by the screw turbine (2, 4) . s
3. The device in accordance with claim 1, c h a r a c t e r i z e d i n that the turbine arrangement (1) is rotatably connected to the bottom mount (12) .
4. The device in accordance with claim 1, c ha r a c t e r i z e d i n that the bottom mount (12) iso formed with a quick coupling for the turbine arrangement (1) .
5. The device in accordance with claim 1, c h a r a c t e r i z e d i n that the turbine arrangement (1) is designed to be movable between the surface and the5 seabed (14) .
6. The device in accordance with claim 1, c h a r a c t e r i z e d i n that the cross section (26) of the screw turbine (2, 4) is given an aerofoil profile.
PCT/NO2009/000022 2008-01-24 2009-01-19 Turbine arrangement WO2009093909A1 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
BRPI0906377-3A BRPI0906377A2 (en) 2008-01-24 2009-01-19 Turbine Array
AU2009206829A AU2009206829B2 (en) 2008-01-24 2009-01-19 Turbine arrangement
EP09704896A EP2245302A4 (en) 2008-01-24 2009-01-19 Turbine arrangement
AP2010005300A AP3047A (en) 2008-01-24 2009-01-19 Turbine arrangement
CN2009801019727A CN101910622B (en) 2008-01-24 2009-01-19 Turbine arrangement
NZ586927A NZ586927A (en) 2008-01-24 2009-01-19 Turbine arrangement including two parallel overlapping screw turbines with opposite pitches
RU2010133623/06A RU2487262C2 (en) 2008-01-24 2009-01-19 Turbine assembly
US12/747,663 US20100266406A1 (en) 2008-01-24 2009-01-19 Turbine Arrangement
CA2709527A CA2709527A1 (en) 2008-01-24 2009-01-19 Turbine arrangement
ZA2010/05985A ZA201005985B (en) 2008-01-24 2010-08-23 Turbine arrangement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20080454A NO327873B1 (en) 2008-01-24 2008-01-24 Device for turbine mounting
NO20080454 2008-01-24

Publications (1)

Publication Number Publication Date
WO2009093909A1 true WO2009093909A1 (en) 2009-07-30

Family

ID=40901297

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2009/000022 WO2009093909A1 (en) 2008-01-24 2009-01-19 Turbine arrangement

Country Status (13)

Country Link
US (1) US20100266406A1 (en)
EP (1) EP2245302A4 (en)
KR (1) KR20100110780A (en)
CN (1) CN101910622B (en)
AP (1) AP3047A (en)
AU (1) AU2009206829B2 (en)
BR (1) BRPI0906377A2 (en)
CA (1) CA2709527A1 (en)
NO (1) NO327873B1 (en)
NZ (1) NZ586927A (en)
RU (1) RU2487262C2 (en)
WO (1) WO2009093909A1 (en)
ZA (1) ZA201005985B (en)

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EP2278156A1 (en) * 2009-07-22 2011-01-26 Rehart GmbH Hydropower facility for generating electrical energy
FR2955157A1 (en) * 2010-01-14 2011-07-15 Francois Christian Paul Crolet SIMPLE DEVICE FOR CONVERTING THE ENERGY OF THE HEAT IN ELECTRICAL ENERGY
WO2012019307A1 (en) * 2010-08-11 2012-02-16 Creative Energy Solutions Inc. System and method for generating electrical power from a flowing current of fluid
WO2013006061A1 (en) 2011-07-04 2013-01-10 Flumill As Arrangement for extracting energy from flowing liquid
WO2013007520A1 (en) 2011-07-08 2013-01-17 Crolet Francois Wave power device for converting wave energy into electricity
WO2014180628A1 (en) * 2013-05-06 2014-11-13 Robert Bosch Gmbh Alignment of a wave energy converter relative to the surrounding body of water

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EP2601407A4 (en) * 2010-08-03 2013-10-30 Gregory Mark Webber Screw turbine and method of power generation
CN102684391B (en) * 2012-05-17 2014-07-16 孟庆保 Vortex tube motor
US20140265337A1 (en) * 2013-03-15 2014-09-18 Robert Ward Harding Archimedes screw turbine generator
GB201318560D0 (en) * 2013-10-21 2013-12-04 Wellstream Int Ltd Electrical power generation
WO2016171352A1 (en) * 2015-04-20 2016-10-27 주식회사 서준 Freely-controlled power generation apparatus
EP3508717A4 (en) * 2016-08-09 2020-04-15 Manuel Muñoz Saiz System for capturing the energy of fluid currents
JP6247731B2 (en) * 2016-10-28 2017-12-13 フルミル アクティーゼルスカブ A device for extracting energy from a flowing liquid
RU2760402C1 (en) * 2020-11-05 2021-11-24 Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" Auger small hydroelectric power station
WO2023003162A1 (en) * 2021-07-19 2023-01-26 정민시 Modular power generation device having screw structure
US11867144B1 (en) 2022-10-31 2024-01-09 Loubert S. Suddaby Wave energy capture, storage, and conversion device
US11959452B1 (en) 2022-10-31 2024-04-16 Loubert S. Suddaby Wave energy capture, storage, and conversion device

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See also references of EP2245302A4

Cited By (12)

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NO20080454L (en) 2009-07-27
NZ586927A (en) 2013-01-25
AU2009206829B2 (en) 2011-03-24
AP3047A (en) 2014-11-30
RU2487262C2 (en) 2013-07-10
EP2245302A4 (en) 2013-03-13
EP2245302A1 (en) 2010-11-03
CN101910622B (en) 2013-03-27
US20100266406A1 (en) 2010-10-21
AP2010005300A0 (en) 2010-06-30
AU2009206829A1 (en) 2009-07-30
BRPI0906377A2 (en) 2015-07-07
ZA201005985B (en) 2011-05-25
CN101910622A (en) 2010-12-08
KR20100110780A (en) 2010-10-13
RU2010133623A (en) 2012-02-27
CA2709527A1 (en) 2009-07-30
NO327873B1 (en) 2009-10-12

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