EP0124570A1 - Energieumwandler - Google Patents
EnergieumwandlerInfo
- Publication number
- EP0124570A1 EP0124570A1 EP83903587A EP83903587A EP0124570A1 EP 0124570 A1 EP0124570 A1 EP 0124570A1 EP 83903587 A EP83903587 A EP 83903587A EP 83903587 A EP83903587 A EP 83903587A EP 0124570 A1 EP0124570 A1 EP 0124570A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- energy converter
- rotor shaft
- vane
- blade
- leaves
- 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- Withdrawn
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"
- F03B17/062—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 at right angle to flow direction
- F03B17/065—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 at right angle to flow direction the flow engaging parts having a cyclic movement relative to the rotor during its rotation
-
- 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
-
- 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
- F05B2260/00—Function
- F05B2260/70—Adjusting of angle of incidence or attack of rotating blades
- F05B2260/72—Adjusting of angle of incidence or attack of rotating blades by turning around an axis parallel to the rotor centre line
-
- 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
Definitions
- the invention relates to an energy converter comprised of
- vanes which each define a main vane plane which comprises the rotor shaft
- the energy-converting mechanism is for example an electricity-generating mechanism, particularly an alternator or generator.
- the energy converter receives energy through the rotor thereof, from a flow and conveys said energy through the rotor shaft to the energy-converting mechanism comprised for example of an alternator or generator.
- each vane is comprised of
- a holder which is fast to the rotor shaft and lies in the main vane plane, - a plurality of blades which each hinge relative to the holder about a hinge axis which lies in parallel relationship with the rotor shaft, and
- the energy converter according to the invention is however preferably so arranged as to have the rotor thereof lying completely under water, the rotor shaft at least substantially horizontal and at right angle to the flow direction, and the blades that lie above the rotor shaft being pressed by the flow against the stop thereof.
- the rotor of the thus-arranged energy converter then so rotates that the vanes in the upper half thereof move with a component in the direction of the flow, completely as opposed to a conventional vane wheel,which lies at the most down to the rotor shaft in the water and of which the vanes of the lower half move with a component in the direction of the flow.
- a conventional vane wheel which lies at the most down to the rotor shaft in the water and of which the vanes of the lower half move with a component in the direction of the flow.
- the flow does act with a braking effect thereon, completely in opposition with the case of a conventional vane wheel which is strongly slowed down where the downwards-moving vane meets the water.
- a contribution to the prevention of slowing-down of the vane wheel according to the invention lies in each blade being freely swingable in the one direction about the axis thereof over more than 90°, or preferably even over at least 120°, from that position the blade takes as it engages the stop thereof.
- the efficiency of the energy converter according to the invention is advantageously influenced when the main vane planes of at least a number of adjacent differently axially-arranged vanes form an angle.
- the vanes are then preferably arranged by pairs both vanes of which have the same axial position and a common main vane plane, but lie on different sides of the rotor shaft.
- the rotor shaft then bears two symmetrically-located series of vane pairs and each series is comprised of n vane pairs the adjacent pairs of which form angles of 180°/n.
- each blade of each vane being comprised of at least two leaves which hinge relative to one another about a small axis which lies in parallel relationship with the rotor shaft, and said leaves are provided with means which,when said leaves lie in extension of one another and the blade engages the stop, make a further mutual hinging movement of the leaves impossible in the direction which brings the small axis the leaves hinge about, past that plane which is defined by the stop and the hinge axis of the blade relative to the holder.
- the leaves are preferably also provided with means which limit the mutual hinging movement thereof in the opposite direction to the above-defined direction.
- Figure 1 is a diagrammatic side view of an energy converter according to the invention.
- Figure 2 is a diagrammatic front view of the energy converter as shown in figure 1.
- Figure 3 shows again, on a larger scale and with more details,part of figure 2.
- Figure 4 shows a cross-section along line IV-IV in figure 3. in the various figures, the same reference numerals pertain to the same elements.
- the energy converter as shown in the figures mainly comprises a frame 1, a rotor mounted therein,which is comprised of a shaft 2 and two series vanes 3, and a gear wheel 4 which is secured between both vane series 3 on shaft 2 and which is part of a connection between said shaft 2 and an energy-converting mechanism.
- Said connection is known per se and is for example a gear transmission. For clearness' sake, but gear wheel 4 of said connection has been shown.
- the energy-converting mechanism also is known per se.
- Said mechanism is preferably a mechanism which converts a revolution into an electric energy, for example an alternator or generator. For clearness'sake also said mechanism has not been shown either.
- the unit as shown in the figures is arranged completely under water in a stream.
- the shaft 2 supported in frame 1 is directed cross-wise to the flow direction of the water.
- the arrangement is preferably such as to have the shaft 2 horizontal.
- the shaft might however also be located vertically and might also form some angle with the horizontal plane.
- Each vane series is comprised of eight vanes 3 which are arranged by pairs diametrically opposite one another and thus form four pairs which lie completely next to one another in the axial direction of shaft 2.
- the two vanes 3 of one and the same pair thus have the same axial position and a common main vane plane, but lie on different sides of rotor shaft 2.
- the four pairs of one and the same series, as considered from the outermost pair towards the innermost pair, are each displaced over 180°/4 or 45° relative to one another in the rotation direction of the rotor, which rotation direction is shown in figures 1 and 4 by arrow 5.
- Each vane 3 comprises two spokes 6 which extend mainly radially relative to rotor shaft 2 and lie at a distance from one another in the axial direction.
- the two spokes 6 thus define a main. vane plane.
- Those ends removed from rotor shaft 2 of both spokes 6 are however bent over about 45° in the backwards direction relative to the rotation direction of rotor shaft 2. Said ends thus form an angle of 135° with the remaining portion of the spokes 6.
- Said spokes are joined together by a connecting rod 7.
- Said connecting rod 7 forms together with both spokes 6, a holder for three blades 8.
- Each one of said blades 8 is hingedly secured with the side thereof removed from shaft 2, to the spokes 6 by means of two pins 9 which are supported in the two spokes 6.
- the two pins 9 form a hinge axis about which the blade 8 hinges relative to the spokes 6. Said axis lies in parallel relationship with rotor shaft 2.
- a support 10 is secured on the spokes 6 for each blade 8. Said support 10 lies in parallel relationship with rotor shaft 2, lies in front of blade 8 relative to that rotation direction as shown by arrow 5 of rotor shaft 2 and actually opposite the edge of blade 8 facing the rotor shaft 2 when said blade 8 lies in the main vane plane.
- the blade 8 In working position the blade 8 lies essentially against support 10 in the main vane plane, which support forms a stop for the blade and lies approximately in the main vane plane.
- the blades 8 cannot hinge past the spokes 6 which form the bearers thereof, as this is prevented by the stops 10.
- said blades In the reverse direction,thus away from the stops 10, said blades may however swing freely about the pins 9, thus lagging relative to the swinging of the spokes 6 which are fixedly carried along with the rotor shaft 2.
- the blades 8 of those vanes 3 which lie above the rotor shaft 2 have been shown in the main vane plane, and the blades 8 of the other vanes have been shown in a position wherein they lag on the holders thereof.
- Each blade 8 is comprised of three leaves 11 which are hingedly secured to one another.
- the outermost leaf 11 is rotatably secured by the pins 9 to the spokes 6.
- the middle leaf 11 is provided on the outermost edge thereof with two pins 12 which are supported in projections 13 of the outermost leaf 11, while the innermost leaf 11 is provided on the outermost edge thereof also with two pins 12 which are supported in projections 13 of the middle leaf 11.
- the pins 12 of the leaves 11 are so directed as to have the geometrical axes defined by said pins and about which the leaves 11 hinge relative to one another, lie in parallel relationship with rotor shaft 2.
- the relative rotation of the three leaves 11 of each blade 8 is however limited on the one hand by stops 14, and on the other hand by stops 15.
- the stops 14 and 15 are secured to the middle leaf 11, respectively on the back and the front side of said leaf in the rotation direction of rotor shaft 2 as shown by arrow 5.
- the stops 14 are the ends of two straight strips which are directed cross-wise to the rotation axes of the leaves and so secured on the back of the middle leaf 11 as to project on either side outside said leaf.
- Said stops 14 prevent buckling of the blade 8 backwards relative to the rotation direction of rotor shaft 2 as shown by arrow 5, due to a relative rotation of the leaves 11 relative to that position whereby said leaves 11 are lying in the extension of one another.
- the leaves 11 lie in the extension of one another because they lie in the main vane plane; the blade 8 then engages with the edge lying closest to rotor shaft 2 of the innermost leaf, the support 10.
- the bending of the blade 8 in reverse direction due to a relative swinging of the leaves 11 thereof is possible in a limited measure.
- the stops 15 are formed by the ends projecting outside the middle leaf 11 of two strips which are secured to the front side of said middle leaf 11, but said ends do not lie in parallel relationship with the plane of the middle leaf 11, but are directed frontwards at an angle of about 45°.
- the middle leaf can swing approximately over 45° relative to the outermost leaf 11 in the opposite direction to the rotation direction of rotor shaft 2 as shown by arrow 5, while the innermost leaf 11 can swing in turn over about 45° in the same opposite direction relative to the middle leaf 11.
- the vane 3 lies above the rotor shaft 2, cross-wise to the flow direction of the water, which is shown in figures 1 and 4 by arrow 16, the leaves 11 of each blade 8 of this vane 3 lie in extension of one another, against the stops 14. The blades 8 lie in the main vane plane against the stops 10.
- the blades 8 lag somewhat on the rotation of the rotor shaft and consequently on the movement of the spokes 6.
- the blade 8 as a whole is released from the stop 10 and performs a limited swinging movement about the hinge axis 9 thereof in the same direction as the rotation direction of rotor shaft 2 as shown by arrow 5.
- the outermost and innermost leaves 11 of each blade 8 are released from the stops 14 on the middle leaf and the leaves 11 hinge relative to one another until the outermost and innermost leaves engage the stops 15 on the middle leaf.
- the blades 8 When the vane has come below the level of rotor shaft, the blades 8 perform a further swinging movement about the axes 9 thereof, still in the rotation direction as shown by arrow 5, until they extend completely flat in the water flow direction as shown by arrow 16.
- the innermost and outermost leaves 11 now hinge in the opposite direction relative to the middle leaf so that they are released from the stops 15 and engage again the stops 14, and the three leaves 11 of one and the same blade 3 lie again in extension of one another.
- the blades 8 lie at an angle markedly larger then 90° to the main plane of vane 3.
- the outwards rotation of the outermost-lying blade 8 is limited to an angle of about 135° relative to the main vane plane by the connecting rod 7 which forms a stop.
- the above-described energy converter has a very high efficiency.
- the number of vanes does not necessarily have to be sixteen. Different vane series do not necessarily have to be provided either. One series is enough.
- connection between the rotor shaft and the energy-converting mechanism does not have necessarily to comprise a gear wheel on the shaft.
- the element made fast to the shaft is dependent on the connection proper and may notably also be a chain wheel or a belt pulley.
- the blade stops do not necessarily have to be formed by a discrete part secured to the holder.
- the stop may be formed by the outermost edge of the adjacent more inwardly-lying blade, in which case said blades overlap somewhat one another when they lie in the main vane plane.
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)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE2059903 | 1982-11-09 | ||
BE2/59903A BE894952A (nl) | 1982-11-09 | 1982-11-09 | Transformator van energie |
BE2060204 | 1983-09-16 | ||
BE2060204 | 1983-09-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0124570A1 true EP0124570A1 (de) | 1984-11-14 |
Family
ID=25661779
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83903587A Withdrawn EP0124570A1 (de) | 1982-11-09 | 1983-11-08 | Energieumwandler |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0124570A1 (de) |
AU (1) | AU2204983A (de) |
WO (1) | WO1984001981A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112031993A (zh) * | 2020-09-21 | 2020-12-04 | 合肥凌山新能源科技有限公司 | 一种用于村落街巷的发电装置 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2237330B (en) * | 1989-10-07 | 1994-08-24 | John Nicoll Vannan | Semi flexible vane and fluid machine incorporating a plurality of such vanes |
BE1004939A3 (nl) * | 1991-06-05 | 1993-03-02 | Worms Louis | Onderwaterturbine |
BE1007840A6 (nl) * | 1993-12-27 | 1995-10-31 | Worms Louis | Onderwater-schoepenrad. |
GB2447781B (en) * | 2007-03-22 | 2012-03-21 | Hugh Malcolm Ian Bell | Improvements in or relating to waterwheels |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR613455A (fr) * | 1926-03-31 | 1926-11-18 | Roue hydraulique | |
GB1508796A (en) * | 1975-04-29 | 1978-04-26 | Hill L | Rotary apparatus |
CH632807A5 (en) * | 1979-10-11 | 1982-10-29 | Roger Berclaz | Hydraulic drive wheel with vertical axis |
FR2494781A1 (fr) * | 1980-11-27 | 1982-05-28 | Braun Patrick | Capteur d'energie hydro-eolienne a axe vertical et pales mobiles |
-
1983
- 1983-11-08 AU AU22049/83A patent/AU2204983A/en not_active Abandoned
- 1983-11-08 WO PCT/NL1983/000046 patent/WO1984001981A1/en unknown
- 1983-11-08 EP EP83903587A patent/EP0124570A1/de not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO8401981A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112031993A (zh) * | 2020-09-21 | 2020-12-04 | 合肥凌山新能源科技有限公司 | 一种用于村落街巷的发电装置 |
Also Published As
Publication number | Publication date |
---|---|
AU2204983A (en) | 1984-06-04 |
WO1984001981A1 (en) | 1984-05-24 |
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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 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH DE FR GB LI LU NL SE |
|
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: 19841010 |