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WO2006126001A1 - Unite de turbine de conversion d’energie - Google Patents

Unite de turbine de conversion d’energie Download PDF

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Publication number
WO2006126001A1
WO2006126001A1 PCT/GB2006/001932 GB2006001932W WO2006126001A1 WO 2006126001 A1 WO2006126001 A1 WO 2006126001A1 GB 2006001932 W GB2006001932 W GB 2006001932W WO 2006126001 A1 WO2006126001 A1 WO 2006126001A1
Authority
WO
WIPO (PCT)
Prior art keywords
energy conversion
turbine unit
flow
unit according
rotor
Prior art date
Application number
PCT/GB2006/001932
Other languages
English (en)
Inventor
Viktor Aleksandar Jovanovic
Original Assignee
Viktor Aleksandar Jovanovic
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 Viktor Aleksandar Jovanovic filed Critical Viktor Aleksandar Jovanovic
Priority to EP06744003A priority Critical patent/EP1896722A1/fr
Publication of WO2006126001A1 publication Critical patent/WO2006126001A1/fr

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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
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/70—Bearing or lubricating arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C39/00—Relieving load on bearings
    • F16C39/06—Relieving load on bearings using magnetic means
    • F16C39/063—Permanent magnets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
    • F01D1/32—Non-positive-displacement machines or engines, e.g. steam turbines with pressure velocity transformation exclusively in rotor, e.g. the rotor rotating under the influence of jets issuing from the rotor, e.g. Heron turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/03—Annular blade-carrying members having blades on the inner periphery of the annulus and extending inwardly radially, i.e. inverted rotors
    • 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
    • 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
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/08—Machines or engines of reaction type; Parts or details peculiar thereto with pressure-velocity transformation exclusively in rotors
    • 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
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/0608—Rotors characterised by their aerodynamic shape
    • 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
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • F03D1/0658—Arrangements for fixing wind-engaging parts to a hub
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1823—Rotary generators structurally associated with turbines or similar engines
    • H02K7/183—Rotary generators structurally associated with turbines or similar engines wherein the turbine is a wind turbine
    • 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
    • F05B2220/00—Application
    • F05B2220/70—Application in combination with
    • F05B2220/706—Application in combination with an electrical generator
    • F05B2220/7068—Application in combination with an electrical generator equipped with permanent magnets
    • 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
    • F05B2240/10—Stators
    • F05B2240/13—Stators to collect or cause flow towards or away from turbines
    • F05B2240/133—Stators to collect or cause flow towards or away from turbines with a convergent-divergent guiding structure, e.g. a Venturi conduit
    • 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
    • F05B2240/33—Shrouds which are part of or which are rotating with the rotor
    • 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
    • F05B2240/50—Bearings
    • F05B2240/51—Bearings magnetic
    • F05B2240/515—Bearings magnetic electromagnetic
    • 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
    • F05B2280/00—Materials; Properties thereof
    • F05B2280/50—Intrinsic material properties or characteristics
    • F05B2280/5008—Magnetic properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/70—Application in combination with
    • F05D2220/76—Application in combination with an electrical generator
    • F05D2220/768—Application in combination with an electrical generator equipped with permanent magnets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/50—Bearings
    • F05D2240/51—Magnetic
    • F05D2240/515—Electromagnetic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/31—Wind motors
    • 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
    • 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

Definitions

  • This invention relates to an energy conversion turbine unit, for acting as an energy-generating turbine or generator.
  • Energy conversion turbine units are very well known in a number of applications.
  • water turbines are known, which can be mounted in ducts, such as the Francis turbine.
  • turbines comprising propellers mounted on a central hub can be used, for example for engaging flowing water or air flow.
  • generators comprising propellers are well known in the form of wind turbines.
  • large horizontal axis three or four bladed wind turbines have become familiar as commercial energy generating units.
  • such units have a disadvantage in that they cannot operate when the wind exceeds a certain maximum speed. Above this speed, there is a danger of precession of the hub, which can lead to damage to the turbine.
  • the present invention is concerned with energy conversion turbine units for engaging free flowing fluid streams, such as water or air such as wind streams, which can operate under high fluid flow conditions.
  • an energy conversion turbine unit for engaging a free flowing fluid can be operated at high speed if the blades are supported at their periphery in an annular rotor, which is rotatably mounted in a nacelle.
  • the present invention provides an energy conversion turbine unit for converting free-flowing dynamic stream energy into rotation, comprising a nacelle, an annular stator element and an annular rotor element rotatably mounted in the stator element, stream-engaging blades extending radially inwardly from the annular rotor into a flow duct defined therein.
  • Dynamic flow of liquids, gases or a combination of both is converted into a different form of energy by transforming the force of free-flowing streams into a rotation force by the revolving motion of the blades attached to the turbine rotor.
  • the efficiency of the turbine is measured by its ability to produce energy and this is dependant on the design of the turbine propeller and the rotor unit as a whole.
  • the free flowing dynamic stream may comprise any suitable fluid, for example liquid or gas.
  • it may comprise a flow of water or a flow of air, for example wind flow.
  • the present invention is suitable for engaging a stream of such fluid which is already flowing, for example the wind or a tidal flow.
  • the present invention is intended for engagement with a body of free flowing fluid which extends in the direction normal to its flow direction for a distance which is larger than the corresponding dimension of the energy conversion turbine unit. This is in contrast to duct-mounted turbine units which engage the whole of the flowing stream.
  • the present invention provides a horizontal axis turbine.
  • the present invention proposes to integrate both blades (e.g. propeller) and hub within the turbine rotor shaft in order to streamline the design and maximise efficiency by reducing negative effects of drag and friction.
  • blades e.g. propeller
  • hub within the turbine rotor shaft in order to streamline the design and maximise efficiency by reducing negative effects of drag and friction.
  • the new design of the nacelle and turbine unit as a whole and the rotor in particular creates a slippery profile which reduces the negative effects of drag and improves the velocity of flow, maintaining the kinetic energy of the stream through the turbine unit while generating the maximum rotational speed.
  • nacelle means a unit for engagement with a free flowing fluid, the dimension of the body of free flowing fluid in a direction normal to the flow direction being greater than the dimension of the nacelle in the direction normal to the flow direction.
  • the nacelle is streamlined. That is, the outer profile of the nacelle preferably curves smoothly or does not increase or decrease in dimension normal to the flow direction. Preferably, the outer profile has no step increases or decreases in the dimension normal to the flow direction. Preferably, the dimension normal to the flow direction of the outer profile of the nacelle increases from the upstream end of the nacelle to a maximum and then decreases again in the downstream direction.
  • the nacelle is of length in the flow direction at least equal to its maximum dimension in the direction normal to the direction of flow and preferably at least 1.5 times the dimension in the direction normal to the direction of flow. This is found to give particularly good streamlining.
  • a fairing may be provided at the upstream end or downstream end, or both, to improve streamlining.
  • the blades of modern large wind turbines become very long and their rotational speed decreases making it difficult to achieve a required tip speed ratio. This implies that the part of the blade close to the root or the rotor hub will operate at a very low speed ratio, thus producing rotational wake-related losses.
  • the upper 1/3 of the blade close to its tip generates 2/3 of the power for the whole blade.
  • the lower 1/3 of the blade closest to the hub is almost unproductive in nominal conditions.
  • the blades of the present invention are shorter than conventional wind turbines as this increases their rotational speed and helps to maintain a tip speed ratio, which allows the upper part of the blade to be attached to the rotor and produce rotational wake-related gains.
  • the annular stator element preferably comprises permanent magnets, electro magnets and/or windings for taking electrical energy generated by rotation of the rotor.
  • magnets, electro magnets and windings may be of any conventional design as will be known to the person skilled in the art.
  • the stator preferably extends for a substantial distance in the axial direction.
  • its axial extent is at least equal to its diameter.
  • it is at least 1.5 times its diameter.
  • the rotor preferably extends for a substantial distance in the axial direction.
  • its axial extent is at least equal to its diameter.
  • it is at least 1.5 times its diameter.
  • the inner surface of the annular stator may be of constant diameter or it may decrease or increase (or both) in the axial direction. It may decrease or increase smoothly or in steps. Where the diameter of the stator increases or decreases, reference above to the ratio of the axial length to the diameter will be taken with respect to the maximum diameter.
  • the annular rotor element may comprise electro magnets, permanent magnets or windings. Preferably, it only comprises permanent magnets, so there is no need to make electrical connections to the rotor.
  • the design of windings may be of any conventional form. They may be formed of a conventional conductor or superconductor material
  • the flow duct defined inside the annular rotor may be of constant diameter or it may decrease or increase (or both) in the axial direction. It may decrease or increase smoothly or in steps. Where the diameter of the stator increases or decreases, reference above to the ratio of the axial length to the diameter will be taken with respect to the maximum diameter.
  • the flow duct decreases from an upstream end to a minimum dimension and then increases.
  • the blades extend into the flow duct at or near the part of minimum dimension.
  • the radially inwardly extending blades of the rotor element may have any suitable shape. They may correspond to the blade design of conventional wind turbines. Alternatively, they may comprise blade members of substantial axial extent. For example, they may extend in the axial direction for a distance at least equal to their radius and preferably equal to at least 1.5 times their radius. They may have leading edges or trailing edges which are normal to the flow direction or at an angle to the flow direction. There may be any suitable number of stream engaging blades, for example at least two, more preferably at least three.
  • the stream engaging blades may extend to the centreline of the flow duct. They may meet at their inward ends. They may be connected together for extra strength. They may meet at a centre body, for example a streamlined shape.
  • the maximum diameter of the flow duct defined by the rotor element preferably comprises between 0.5 and 0.75 of the maximum external dimension in the direction normal to the flow of the nacelle.
  • the flow duct may be bounded substantially completely by the rotor. Alternatively, there may be a section upstream of the rotor. There may be a section downstream of the rotor. Either of these sections may comprise fixed blades projecting axially inwardly, for example to create or arrest rotational movement of the fluid in the duct, as appropriate.
  • the rotor may comprise a portion in which the flow is engaged by blades and a portion in which the flow is not engaged by blades, in order to obtain stable flow.
  • the rotor may be rotatably mounted by any suitable bearing design. It may be mounted on peripheral bearings or there may be an axial bearing in the middle. Peripheral bearings are preferred, as they will not require structures which interrupt the flow duct within the rotor. Preferably, there is a plurality of bearings, spaced apart from one another in the axial direction. Preferably the rotor unit will rotate resting on magnetic suspension bearings thus further reducing negative effects of friction.
  • the present invention provides an energy conversion turbine unit comprising a turbine generator for converting free flowing dynamic stream energy into rotation force, the generator comprising a nacelle and a propeller element which sits housed in a tubular duct rotor, which is suspended on a magnetic force field, that rotates about an axis inside a tubular duct stator.
  • Figure 1 is a schematic, part sectional isometric view of a first embodiment of energy conversion turbine unit of the present invention.
  • Figure 2 is a schematic cross-section through the axis of Figure 1.
  • Figure 3 is an end view of Figure 1.
  • Figure 4 is a rear view of Figure 1.
  • Figure 5 is an enlarged partial view of Figure 1.
  • Figure 7 show views of the blades.
  • Figure 8 is schematic part sectional view of Figure 1 , showing magnetic suspension bearings.
  • Figure 9 is a part sectional view of the magnetic bearing.
  • Figure 10 shows a schematic isometric view of the magnetic bearing.
  • Figure 11 is a schematic isometric view of the unit, showing the positions of the magnetic suspension bearings with respect to the stator and rotor.
  • Figure 12 shows an isometric view of a winding of the unit.
  • Figure 13 is a further schematic part sectional isometric view showing positions of magnetic poles.
  • Figure 14 is a schematic isometric view showing the windings in place on the stator.
  • Figure 15 is a schematic, part sectional isometric view of a second embodiment of energy conversion turbine unit of the present invention.
  • Figure 16 is a schematic cross-section through the axis of Figure 15.
  • Figure 17 is an end view of Figure 15.
  • Figure 18 is a rear view of Figure 15.
  • the Figures show an embodiment of an energy conversion turbine unit according to the present invention. It is suitable for use as a wind turbine. In practice it can be mounted in any suitable manner, for example on a tower or support column at a suitable high for engaging optimum wind speed.
  • Fig. 1 shows a nacelle N, a horizontal shaft unit H, the dynamic inflow W causing propeller R to rotate.
  • Fig. 2 shows a sectional view of nacelle N, horizontal shaft unit H, the dynamic inflow Wi generating the rotation of propeller R and depicting the dynamic outflow Wo.
  • Figs. 1 and 2 also show that the outer shape of the nacelle has an aerodynamic shape for minimising drag.
  • a fairing F can be seen at the upstream end of the nacelle.
  • the contour of the fairing is shown by the pattern lines FP, which show that the fairing has an annular aerodynamic shape.
  • the horizontal shaft unit will comprise a stator assembly SA and rotor assembly RA, as described further below.
  • the nacelle is of length in the direction of flow (axial direction) which is at least 1.5 times the maximum dimension in the direction normal to the direction of flow (radial direction), and nearly twice the maximum dimension in the radial direction.
  • the flow duct occupied by the propeller R is of dimension in the radial direction about half the maximum dimension of the nacelle in the radial direction.
  • the propeller occupies approximately half the volume of the flow duct, a flow chamber FC being defined upstream of the propeller for optimum flow characteristics.
  • Fig. 3 shows the front view Hf of nacelle N, horizontal shaft unit H, and propeller R.
  • Fig. 4 shows the rear view Hb of nacelle N, horizontal shaft unit H, and propeller R.
  • Fig. 5 shows the horizontal shaft unit H, the dynamic inflow W generating the rotation of propeller R and rotor assembly RA.
  • Fig. 6 shows propeller R from angle of view R1.
  • Fig. 7 shows propeller R from angle of view R2.
  • Fig. 8 shows the horizontal shaft unit H, the dynamic inflow W generating the rotation of propeller R and rotor assembly RA, arrows indicate the position of Magnetic suspension bearings MB1 and MB2 axially spaced apart.
  • FIG. 9 shows the cutaway view of magnetic bearing MB 5 with the magnet M1 exerting magnetic force north N directed outwards toward magnet M2 that is also exerting magnetic force north N inwards toward magnet M1 thus creating an air cushion between magnets M1 and M2.
  • Fig. 10 shows the magnetic suspension bearing MB with arrows indicating the positions of magnets M1 and M2 relative to cutaway view Fig2, and arrows indicating the position of stator SR and rotor RT of the magnetic suspension bearing MB within the horizontal shaft unit H on Fig1.
  • Fig. 11 shows the internal view of horizontal shaft unit H, illustrating the positions of stator assembly SA, rotor assembly RA and superconducting wire unit SU.
  • the superconducting wire unit SU can be replaced by conventional windings, for example of copper or other suitable material if desired.
  • the wire unit SU provides windings for generating an electro magnetic force to interact with the magnetic field of the rotor assembly RA.
  • Fig. 12 shows the superconducting wire unit SU and arrows indicating the positions of laminated core LC on the unit SU and on stator assembly SA of horizontal shaft unit H on Fig1.
  • Fig2 also shows the armature windings AW with arrows indicating the position of AW on the superconducting wire unit SU and on stator assembly SA of horizontal shaft unit H on Fig1.
  • Fig. 13 again shows the internal view of horizontal shaft unit H, illustrating the positions of rotor assembly RA and stator assembly SA.
  • Magnet assembly MS of the rotor assembly RA has arrows indicating the positions of the magnetic poles north N and south S attached to the rotor assembly RA.
  • Fig. 14 shows the rotor assembly RA and stator assembly SA inside the coil of superconducting wire unit SU.
  • Fig. 1 illustrates nacelle N containing a horizontal shaft unit H guides the dynamic inflow W representing wind flow, gas flow, liquid flow or a mixture of both, which travels along the length of the shaft interior causing propeller R to rotate.
  • the outer tips of propeller R are attached to the inside edge of rotor assembly RA, Fig. 5.
  • the rotor assembly RA sits inside the rotor RT of magnetic suspension bearings MB1 and MB2 see Fig. 8.
  • Rotor RT rotates inside stator SR, Fig. 10 suspended on a magnetic field see Fig. 9.
  • the outer portion of rotor assembly RA has 4 magnets MS attached with the North Pole N and South Pole S opposite each other Fig. 13.
  • the outer portion of stator assembly SA, Fig. 11 is positioned surrounding and enclosing rotor assembly RA, Fig. 11 and Fig. 13. ⁇
  • the superconducting wire unit SU, Fig. 12 is positioned on the outer portion of stator assembly SA, Fig. 11. Armature windings AW and laminated core LC make up the superconducting wire unit SU, Fig. 12 which is positioned on the outer portion of stator assembly SA, Fig. 11.
  • the magnets MS attached to the rotor assembly RA rotate inside the coil of superconducting wire unit SU and produce an electric current; see Fig. 13 and Fig. 14.
  • Figure 15 is a schematic, part sectional isometric view of a second embodiment of energy conversion turbine unit of the present invention.
  • the flow duct defined by the rotor has a smoothly curving profile in the axial direction, which decreases from the upstream end to a minimum diameter approximately in the middle of the duct and then increases again to the downstream end.
  • This provides a venturi shape, with an accelerated flow at the minimum diameter portion.
  • Five blades, in the form of a propeller shape, extend radially inwardly from the rotor at the minimum diameter portion and meet in a streamlined centre body.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Power Engineering (AREA)
  • Wind Motors (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

Unité de turbine de conversion d’énergie sur la figure 1 illustrant une nacelle N contenant une unité d’arbre horizontale H canalisant l’influx dynamique W représentant le flux de vent, le flux gazeux, le flux liquide ou un mélange de ceux-ci, qui circule sur la longueur de l’intérieur de l’arbre amenant l’hélice R à tourner. Les pales de l’hélice sont montées au niveau de leurs embouts sur l’intérieur d’un rotor annulaire de sorte qu’elles font saillie radialement vers l’intérieur dans la conduite de flux à l’intérieur du rotor annulaire.
PCT/GB2006/001932 2005-05-26 2006-05-25 Unite de turbine de conversion d’energie WO2006126001A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06744003A EP1896722A1 (fr) 2005-05-26 2006-05-25 Unite de turbine de conversion d energie

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0510774.3 2005-05-26
GB0510774A GB2426554A (en) 2005-05-26 2005-05-26 Tubular turbine with magnetic bearings

Publications (1)

Publication Number Publication Date
WO2006126001A1 true WO2006126001A1 (fr) 2006-11-30

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EP (1) EP1896722A1 (fr)
GB (1) GB2426554A (fr)
WO (1) WO2006126001A1 (fr)

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ITMI20101031A1 (it) * 2010-06-09 2011-12-10 Alessandro Marracino Girante eolica modulare ad asse verticale e generatore eolico comprendente tale girante

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BRPI0821754A8 (pt) * 2007-12-20 2016-02-10 Rsw Inc Turbina de recuperação de energia cinética
GB0808998D0 (en) * 2008-05-19 2008-06-25 Maimone Michael D Fluid-driven generator
CN101943134A (zh) * 2009-07-10 2011-01-12 王忠玉 巨型磁悬浮垂直轴斜拉结构风力机防风防雨罩
CA2815495C (fr) 2010-10-22 2015-12-15 Louisiana Tech Research Foundation; A Division Of Louisiana Tech University Foundation, Inc. Turbine a boitier rotatif
DE102011012147B4 (de) * 2011-02-24 2021-05-06 Gilbert Doko Turbine
BRPI1104101B1 (pt) * 2011-08-04 2013-04-30 gerador de energia eàlica em plataforma na base da captaÇço dos ventos.
DE102013013405A1 (de) * 2013-08-01 2015-02-05 hdf-mjf- Technologies OHG Rotoranordnung zur Gewinnung von Energie durch Strömungsenergie oder Abgabe von Strömungsenergie sowie Verfahren zum Halten von Rotoren

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US1790969A (en) * 1931-02-03 Tide and current motor
FR2253391A5 (en) * 1973-12-04 1975-06-27 Le Bihan Jean Multiple wind driven turbine - achieves multiplication of power effect using several rows of blades in conical housing
FR2283331A1 (fr) * 1974-09-02 1976-03-26 Hainault Paul Ensemble electromecanique destine a capter l'energie cinetique des vents
FR2474604A1 (fr) * 1980-01-28 1981-07-31 Chanay Paul Aero-generateur a roue a ailettes et induits peripheriques
US4547124A (en) * 1982-04-11 1985-10-15 Vladimir Kliatzkin Impeller for a wind motor
WO1999037912A1 (fr) * 1998-01-27 1999-07-29 Hydroring B.V. Machine, en particulier machine electrique, specifiquement convertisseur energetique pour l'ecoulement de fluides et de gaz
US20030137149A1 (en) * 2001-10-29 2003-07-24 Northrup G. William Segmented arc generator

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US2509442A (en) * 1945-04-17 1950-05-30 Matheisel Rudolph Inverse rotor
DE2163256A1 (de) * 1971-12-20 1973-07-26 Maschf Augsburg Nuernberg Ag Stroemungsmaschine, insbesondere turbopumpe, oder durchstroemmengemesseinrichtung fuer ein aggressives, radioaktives oder reinzuhaltendes stroemungsmittel
DE3638129A1 (de) * 1986-11-08 1988-05-11 Licentia Gmbh Generatorturbine mit grossem durchmesser zur erzeugung elektrischer energie grosser leistung
EP1561899A1 (fr) * 2003-12-23 2005-08-10 Shell Internationale Researchmaatschappij B.V. Turbine pour produire de l'énergie dans un courant de fluide

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Publication number Priority date Publication date Assignee Title
US1790969A (en) * 1931-02-03 Tide and current motor
FR2253391A5 (en) * 1973-12-04 1975-06-27 Le Bihan Jean Multiple wind driven turbine - achieves multiplication of power effect using several rows of blades in conical housing
FR2283331A1 (fr) * 1974-09-02 1976-03-26 Hainault Paul Ensemble electromecanique destine a capter l'energie cinetique des vents
FR2474604A1 (fr) * 1980-01-28 1981-07-31 Chanay Paul Aero-generateur a roue a ailettes et induits peripheriques
US4547124A (en) * 1982-04-11 1985-10-15 Vladimir Kliatzkin Impeller for a wind motor
WO1999037912A1 (fr) * 1998-01-27 1999-07-29 Hydroring B.V. Machine, en particulier machine electrique, specifiquement convertisseur energetique pour l'ecoulement de fluides et de gaz
US20030137149A1 (en) * 2001-10-29 2003-07-24 Northrup G. William Segmented arc generator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20101031A1 (it) * 2010-06-09 2011-12-10 Alessandro Marracino Girante eolica modulare ad asse verticale e generatore eolico comprendente tale girante

Also Published As

Publication number Publication date
GB2426554A (en) 2006-11-29
GB0510774D0 (en) 2005-06-29
EP1896722A1 (fr) 2008-03-12

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