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
• • 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
  • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
• • 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
  • F05B2240/21—Rotors for wind turbines
  • F05B2240/221—Rotors for wind turbines with horizontal axis
  • F05B2240/2212—Rotors for wind turbines with horizontal axis perpendicular to wind 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
  • F05B2240/30—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
  • F05B2240/311—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 flexible or elastic
• • 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
  • F05B2240/90—Mounting on supporting structures or systems
  • F05B2240/92—Mounting on supporting structures or systems on an airbourne structure
  • F05B2240/921—Mounting on supporting structures or systems on an airbourne structure kept aloft due to aerodynamic effects
• • 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
  • F05B2240/90—Mounting on supporting structures or systems
  • F05B2240/92—Mounting on supporting structures or systems on an airbourne structure
  • F05B2240/922—Mounting on supporting structures or systems on an airbourne structure kept aloft due to buoyancy effects
• • 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
  • Y02E10/72—Wind turbines with rotation axis in wind direction
• • 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
  • Y02E10/728—Onshore wind turbines
• • 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 a wind turbine assembly comprising a wind turbine and a mounting connected thereto, the wind turbine comprising a blade wheel rotatable about an essentially horizontal shaft, the blades of said blade wheel being formed by flexible web sections which change in shape depending on the position with respect to the mounting, generator means for generating electric current being connected to said horizontal shaft.
• a wind turbine assembly of this type is disclosed in NL 8602793 A. This publication describes a wind turbine to be fixed to a mast. This wind turbine consists of a horizontal blade construction with outer wheel and inner wheel. The latter are arranged eccentrically with respect to one another and rotate at the same angular velocity. The blades, consisting of webs of flexible material, extend between outer wheel and inner wheel.
• the shape of the webs will change depending on the position of outer wheel with respect to inner wheel, that is to say the degree of eccentricity. It has been found that wind energy can be utilised by this means in a particularly effective manner, that is to say using a relatively compact form.
• Other generally known wind turbines are fixed propellers of the Darrieus and Panemoon type. In order to capture appreciable quantities of energy, propellers of this type must have an appreciable surface area and be positioned at great height to be able to catch sufficient wind. The same applies in the case of the construction described in the abovementioned Netherlands Application 8602793.
• mast constructions of this type contribute to an appreciable extent to a blot on the landscape.
• wind energy is now usefully used only in locations close to the coast where there are also elevations such as dykes. Because such locations are relatively scarce, the decision to erect a series of wind turbines on such sites is frequently taken.
• the aim of the present invention is to provide a less expensive wind turbine assembly which, because of the construction thereof, can also be used in locations other than along coasts and which gives rise to less of a blot on the landscape.
• a wind turbine assembly as described above in that said mounting comprises a wing profile having a width which essential- ly corresponds to the width of the wind turbine, and having a front lift- producing section which is provided with a fixing for a cable to be connected to the ground, as well as a rear section in which said turbine is mounted.
• the invention is based on the insight of no longer using a mast construction but incorporating the wind turbine according to Netherlands Patent Application 8602793, which gives a relatively compact construction, in a wing profile and fixing this with respect to the ground surface with the aid of a cable. As a result it is possible to operate the wind turbine at appreciably greater heights than has been customary hitherto without taking special constructional measures.
• the underside of the wing profile tapers from the front section thereof in the direction of the rear section. As a result an inlet opening for the air which enters the wind turbine is delimited on the underside of the rear section.
• the wing profile is provided with side walls which do not taper to the same degree as the underside, with the result that said side walls protrude laterally.
• the wing profile is provided with side walls which do not taper to the same degree as the underside, with the result that said side walls protrude laterally.
• the wing profile In order, in particular, to facilitate rising, it is possible to provide the wing profile with a chamber to be filled with gas, the gas, of course, having a lower relative density than the ambient air.
• the generator can be mounted in any position in the wing profile, but it is preferred to mount said generator laterally on the outside with respect to the wing profile. As a result the flow over the wing profile is disturbed as little as possible and optimum cooling of the generator is pro- vided.
• Fig. 1 shows a side view of the wind turbine assembly according to the invention.
• Fig. 2 shows a perspective and partially exposed view of the construction according to Fig. 1.
• a wind turbine assembly is indicated in its entirety by 1.
• the assembly consists of a wing profile 2, a wind turbine 3 being mounted in the rear section 5 thereof .
• the front section 4 of the wing profile 2 is provided with eyes 6 for fixing a cable thereto.
• a blade construction is indicated by 9.
• This blade construction consists of two shafts 8 and 10 which rotate at the same angular velocity and in the same direction and are linked to one another via means which are not shown in more detail.
• An inner wheel 12 is mounted around shaft 8 on either side of the wing profile.
• a wheel 11 is connected to shaft 10 on either side of the wing profile.
• the blades are drawn in various positions in the figures. These different positions are imposed by the relative positions of inner wheel 12 and outer wheel 11. It is possible to perform a rotary movement at several hundred revolutions per minute with a construction of this type.
• the outer wheel 11 is also provided with toothing, which is not shown in more detail and engages on a gear wheel 16 which, in turn, is connected to a generator 17 which is located outside the actual wing profile 2.
• the rear section 5 of the wing profile comprises two wind vanes 21, which are located some distance apart and between which a spoiler 18 extends.
• This spoiler is of adjustable construction.
• the adjustment can be wind-dependant to render optimum positioning of the rear section 5 with respect to the front section 4 possible. That is to say, as a result of adjustment the rear section can be located higher or lower with respect to the front section, which has an influence on the amount of air admitted to the wind turbine 3. In this way the wind turbine 3 is always able to function in the optimum operating range thereof, which is also promoted by the use of a diffuser 25.
• the front section 4 of the wing profile 2 consists of an upper section and an underside 22.
• a chamber 23 is delimited between the two, which chamber can optionally be closed off so that it can be filled with gas.
• the underside 22 does not extend down as far as the side walls 20.
• the side walls 20 are provided with tips 24 which generate turbulence to stabilise the wing profile.
• an installation is obtained which has a particularly high efficiency, which is of an efficient shape and is simple and economical to operate, self-starting and provided with speed control. Moreover, said construction is self-orienting to the optimum wind direction. Optimum adjustment to the conditions can be provided by variation of the height of the installation according to the invention. Speed-limi ing characteristics are achieved with a wind turbine constructed in this way. The power take-up is also constant over a wide range of wind speeds. It is possible to generate virtually constant electric power using the constructions described above. This is particularly so because the wind turbine assembly can be used at great height.
• the installation described above can also be used for commercial purposes. These purposes can comprise operation as an advertising carrier, use as a transmitter/receiver or use as an accumulator.

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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)

Priority Applications (4)

Applications Claiming Priority (1)

Publications (1)

Family

ID=19866209

Family Applications (2)

Family Applications After (1)

Country Status (2)

Cited By (4)

Families Citing this family (11)

Citations (9)

Family Cites Families (3)

• 1997
  • 1997-09-05 AU AU42235/97A patent/AU4223597A/en not_active Abandoned
  • 1997-09-05 WO PCT/NL1997/000508 patent/WO1999013220A1/nl not_active Application Discontinuation
• 1998
  • 1998-09-04 WO PCT/NL1998/000506 patent/WO1999013221A1/en active Application Filing
  • 1998-09-04 AU AU90076/98A patent/AU9007698A/en not_active Abandoned

Patent Citations (9)

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