WO2019029848A1

WO2019029848A1 - Wind turbine

Info

Publication number: WO2019029848A1
Application number: PCT/EP2018/053107
Authority: WO
Inventors: David Jan SCHLESINGER
Original assignee: Schlesinger David Jan
Priority date: 2017-08-07
Filing date: 2018-02-07
Publication date: 2019-02-14
Also published as: CH714046A1; CH714653A2

Abstract

The invention relates to a wind turbine having a tilting vane (11), which can be aligned against the wind direction (W), a longitudinal element (15) connected thereto, which can be moved up and down, and a retaining device (13) guiding same. According to the invention, the longitudinal element (15) is operatively connected to an energy conversion device (16), wherein electrical energy or another form of energy can be generated by the movement of the longitudinal element (15). The vane (11) is mounted on the one longitudinal element (15) about a swivel axis (A) extending crosswise thereto, wherein the longitudinal element (15) having the vane (11) is positioned in a free-standing manner, preferably on either side of a tiltable vane, and the vane is movable up and down together with the longitudinal element by the luffing generated by the wind, wherein the longitudinal element (15) interacts with a spring element (21). This results in an extremely simple and efficient structure of the plant because no additional means need to be used.

Description

Wind turbine

The invention relates to a wind turbine according to the preamble of claim 1.

A known turbomachine especially for wind currents according to the document DE-A-102014003752 is provided with a wing arrangement with two parallel aligned wings. A guide device ensures a linearly movable guidance of the wings in an oscillating counter-rotating stroke movement of the wings along a respective stroke. Means are provided for pivoting the wings about a respective pivot axis aligned transversely to the pivot axis for variable adjustment of the stroke. In addition, a gear arrangement is provided which allows an implementation of the strokes of the wings in a unidirectional rotational movement. Thus, a connection with a generator or a pump for the generation of electrical energy can be achieved.

The document US-A-2012/0235417 also discloses a reciprocal transmission device of kinetic energy into electrical energy, in particular of wind energy. There are stacked angeord Nete wing by a height adjustment in pairs pivoted about an axis up and down. By coupling the wings via a linkage, electricity is generated by a generator driven by them.

The invention has for its object to provide a wind turbine according to the type mentioned, which allows for a simple and stable construction efficient energy conversion and is suitable as needed for mobile use.

This object is achieved according to the features of claim 1.

In this wind turbine, comprising at least one directable against the wind direction blade, at least one these luffing confirmed lead longitudinal member and a latter leading holding device according to the invention is moved up and down longitudinal member before ^¬ preferably each stand freely with on both sides a luffing wing, in which these wings in the upper and the holding device in the lower are arranged rich of the longitudinal element, and caused by the wind-generated rockers of the wing, this up and down movement of the longitudinal element together with the wing.

In this case, an energy conversion device fed by the longitudinal element is arranged in the holding device, in which electrical energy or another form of energy can be generated by moving the longitudinal element.

Very advantageously, the longitudinal element is resiliently supported by one or more spring members and acts on this a spring force at least in the upward direction against gravity.

The invention and further advantages thereof are explained in more detail below with reference to exemplary embodiments with reference to the drawing. Show it:

1 is a schematic perspective view of a wind turbine according to the invention;

Fig. 2 shows a cross section of the wind turbine according to Fig. 1 with a

Control device for rocking the wing;

3 is a perspective view of a variant of an inventive wind turbine according to the invention.

4 shows a perspective view of a further variant of a wind power plant according to the invention; and

Fig. 5 shows a perspective view of the wind power plant according to FIG. 4 in a partial section.

Fig. 1 shows a principle of a wind turbine 0, with an alignable against the wind direction W tiltable wings 1 1, this one an indicated pivot bearing 1 1 'holding up and down movable longitudinal member 15 and a leading this holding device 13 with a Sockei 1 9 and a support 13' is provided. The wing 1 1 is mounted about a preferably horizontal extending in its longitudinal axis of pivot axis A and for its orientation against the wind, a control wing 14 in a preferably vertical plane at an upper provided with a rotary bearing 12 part 1 5 'of the longitudinal element 15 is arranged. The wing 1 1 extends on both sides of the longitudinal member 1 5 with advantageously equal spans to produce an approximately occurring in its center resulting force on the longitudinal member 5.

According to the invention, the longitudinal element 1 5 with the tiltable wing 1 1 freestanding set up without additional means in which this wing 1 in the upper and the holding device 1 3 are arranged in the lower region of the longitudinal member 15, wherein the longitudinal member 1 5 supported on a spring member 21 is and is pressed by this in its direction of movement against the wing 1 1.

When there is a wind on the rocking wing 1 acts a force component, which pushes him depending on the rocker position either down or up. Here, the wing 1 is pressed together with the mast formed as a longitudinal member 15 by the wind either down and there ^¬ in against the spring member 21 or as soon as the predetermined spring tension is large enough, the longitudinal member 15 with the wing 1 1 reversed pushed upwards. In this reversal, a torque is generated on the wing 1 about its pivot axis A, so that it is tilted at the front, where the wind hits, upwards and pushes the wind in the sequence up to the upper end position. This results in a very simple and efficient construction of the system, because just no additional means, such as racks, brackets or the like must be used. There are formed by these oscillating elements, namely the bobbing wing 1 1 and this spring member 21 with the longitudinal element 1 5, in operation two independently acting oscillating circuits, which are coordinated so that overall a uniform vibration of the wing one hand and thereby results in a coordinating up and down movement of the longitudinal element or a compression or expansion of the spring member 21. Without damping means, an approximately sinusoidal rocking of the wing usually occurs, in particular with the natural frequency of the oscillating circuits.

The longitudinal element 15 and the holding device 13 have an energy conversion device 16, by means of which electric current or another energy form can be generated. There are in this example, a with the longitudinal member 15 up and down moving armature 17 and a magnetic coil 1 8 are provided which generate electricity in a known manner, which can be connected by a cable connection, not shown, to a consumer.

The longitudinal element 15 which can be moved up and down along its longitudinal axis is supported vertically on the support 13 'of the holding device 1 3 and preferably consists solely of a thin, lightweight mast, which can be tubular. Likewise, the at least one wing is made of a lightweight material, such as a fabric.

Fig. 2 shows a variant of the wind power plant according to Fig. 1, in which additionally to ^¬ a control device 20 in the longitudinal member 1 and a 5 Spiral spring 22 in the pivot bearing 1 1 'of the wing 1 1 are integrated. The control device 20 is an electromagnetic pulse generator 23 with a displaceable by the coil armature 24 zugeord net, by means of which an initiation of the rocking of the wing 1 1 and a damping of Wippgeschwind can be performed candy. Of course, this control device could also be designed by valves.

The lifting movement of the longitudinal element 1 5 and / or the rocking movement of the at least one wing 1 5 can be limited by means of at least one spring member, a stop or the like. For example, this can be realized by the coil spring 22 in the pivot bearing 1 1 'as a spring member, which is arranged around the pivot axis A around and inside of this axis or on the outside of the rocking wing 1 1 is attached to a respective point 26, 27, so that it twists when pivoting to a final position.

A wind turbine 30 according to FIG. 3 differs from that according to FIG. 1 in that a wing 31, each with a pivot bearing 32, is mounted on the common pivot axis A on both sides of the longitudinal element 35 and that the longitudinal element 35 is mounted on a holding device 33 forming a parallelogram can be moved up and down. Otherwise, this wind turbine 30 works like the above-described Appendix 10 and therefore it is not again all the details shown below.

The two wings 31 are held on an upper-side transverse axle shaft 32 ', ie it is mounted in the pivot bearings 32 and forms the pivot axis A. The holding device 33 comprises a stand 36 with a plurality of legs 36 'and an angled strut 36 ", this formed as a parallelogram frame 33' with multiple joints 37, a tension spring 38 and a bandage ungselement 39, the back of the frame 33 'on the one hand and on the Angled portion of the stand 36 on the other hand are fixed.

The vertical Längseiement 35 forms a part of the parallelogram and it remains in the up and down movement in the vertical position. However, it is additionally rotatably mounted about its vertical axis, so that the blades 31 can always be aligned against the wind, this being effected by the control wing 34 attached to it.

When there is wind, the rocking blades 31 in turn act on a force component which, depending on the rocking position, presses them either downwards or upwards together with the longitudinal element 35 in the form of a mast. Trained as a tension spring 38 spring member is stretched in the downward movement of the longitudinal member, as shown, and as soon as the predetermined spring tension force is large enough, the Längseiement 35 is reversely moved with the wings 31 upwards. In this reversal, a torque is generated on the wings 31 about the pivot axis A, so that they are tilted front side up and the wind moves him in succession up to the upper end position d.

This pivot axis A is not arranged in the middle of the wings 31, but offset to the front. Thus, a larger wind force is generated on the rear larger wing surface 31 "than on the front smaller wing surface 31 'when rocking.This supports the change when turning the wing against the wind, because the greater the angle of the wings when rocking to the wind direction, the higher the force effect kung on the rear to the front wing surfaces and it is thus generated an increased torque on the wings, so that they rock faster in the other position, in which then the force component acts in the other direction. In addition, this forward offset arrangement of the pivot axis A by the resulting torque causes an automatic excitation of the rocking of the wings in the oncoming wind.

The longitudinal element 35 is operatively connected to an energy conversion device, not shown in detail, through which electrical current or another form of energy can be generated. Such a device could be arranged in the designed as a parallelogram frame 33 'and have a moving up and down magnet armature and a magnetic coil.

Fig. 4 and FIG. 5 show a variant of a wind turbine 40, in which, similar to the system 10 according to FIG. 1 a wing 41 is provided which extends on both sides with equal spans to a longitudinal element 45 consisting of two parallel rods. In addition, the wing 41 at both ends depending on a perpendicular Steuerflügei 44, by means of which it is automatically aligned with the wind W.

The tiltable about a pivot axis A wings 41 has on the bottom of a bracket 42 with a pivot bearing 41 'on which this up and down movable longitudinal member 45 is mounted end. In contrast to the one according to FIG. 1, the longitudinal element 45 is arranged approximately horizontally and mounted pivotably about an axle bearing 46 of a holding device 43. The latter is composed of a linkage with a plurality of horizontal and vertical struts 47 and these holding blocks 48 together. Of course, it could also be designed differently. According to the invention the Längseiement 45 with the wing 41 is freestanding, and the wing is supported by the wind-generated rockers together with the longitudinal member movable up and down, the longitudinal member 45 with a plurality of spring members 49, 51 cooperates, which are designed as tension springs and attack on both sides of the axle bearing 46 respectively on the longitudinal element 45 and anchored to the other on the holding device 43. Thus, this longitudinal element 45 is always stretched on both sides of the Achsiager 46 by these tension springs and it is then moved up and down with a rocker of the Flugis 41 to the axle bearing 46. The longitudinal element 45 is also operatively connected to an energy conversion device, which is not shown in detail.

When there is a wind on the rocking wing 41 acts on this force component, which presses him either down or up. In this case, either one or the other tension springs are stretched as spring members 49 in the longitudinal member 45 and as soon as the predetermined clamping force of one or the other tension springs is greater than this wind power component, the longitudinal member 45 is pushed with the wing 41 in the other direction. In this reversal, a torque is generated on the wing 41 about its pivot axis A, so that it is tilted front side up and pushes him the wind in succession up to the upper Endstellu ng.

With this wind turbine 40 is a very stable design and also with the arrangement of the spring members on the longitudinal element 45 a very rhythmic efficient swinging of the system achieved by these two resonant circuits. The invention is sufficiently demonstrated with the embodiments explained above. But you could still be revealed by other variants. The one or more flights! as well as its pivot axis A could in principle be vertical, while the longitudinal element arranged horizontally and be reciprocated accordingly. The longitudinal element could also be composed of one or more profile elements composed of poles or the like instead of a rod.

On the at least one wing could preferably be arranged on each side on its lower side to its pivot axis A at least one held at the longitudinal element spring member, ie he would be designed so that they would cause the same leveling of the wing in a horizontal plane.

It could also several at certain intervals sequentially angeord designated wing or wing pairs are each stored rockably on a Längseiement so that a wave motion of the air flow generated and from it the energy transfer would be increased.

On the longitudinal element and a plurality of superimposed wings or pairs of wings could be stored tiltable, d he advantageous synchronous rocking each other, so that this would be matched with the up and down movement of the longitudinal element.

Likewise, a plurality of superimposed wings or pair of wings could be stored tiltable, each of which would be stored independently of each other on a separate preferably different length longitudinal member, but he would dive advantageous synchronously with each other.

Claims

1. Wind power plant, with at least one against the wind direction (W) alignable tiltable wings (11, 31, 41), at least one associated with this up and down movable longitudinal member (15, 35, 45) and a holding device (13, 33 , 43), wherein the longitudinal element (15, 35, 45) with a power conversion device (16) is operatively connected, in which by moving the longitudinal element (15, 35, 45) electrical energy or another form of energy can be generated, characterized in that

the at least one wing (11, 31, 41) is mounted on the one longitudinal element (15, 35, 45) about a pivot axis (A) extending transversely thereto, the longitudinal sefement (15, 35, 45) being connected to the at least one wing (11, 31, 41), preferably with both sides on each a tiltable wing, is erected freestanding, and the wing by the wind-generated rockers together with the longitudinal member is movable up and down, wherein the longitudinal member (15, 35, 45) with one or more Federorga ^¬ NEN (21, 38, 49, 51) cooperates.

2. Wind turbine according to claim 1, characterized in that the Längseiement (15, 35, 45) in the middle of the one or between two wings (1 1, 31, 41) is erected free-standing without additional means, in which this wing in upper and the Haiteeinrichtung (1 3, 33, 43) in the lower region of the longitudinal element (15, 35, 45) are arranged.

3. Wind turbine according to claim 1, characterized in that on both sides of the longitudinal element (35) each have a wing (31) is mounted on a respective pivot bearing (32) which are arranged about the coaxial pivot axis (A) rockable and synchronously with each other are pivotable.

4. Wind power plant according to one of the preceding claims 1 to 3, characterized in that

the longitudinal element (15, 35) is vertical, is movable up and down along its longitudinal axis and preferably consists of a single mast.

5. wind turbine according to one of the preceding claims 1 to

4, dad urch indicated that

the longitudinal element (1 5) is resiliently supported by the one spring member (21) and acts on this at least one spring force in the upward direction against the force of gravity.

6. wind turbine according to one of the preceding claims 1 to

5, dad urch marked that

The stroke movement of the longitudinal element and / or the rocking movement of the at least one wing can be limited by means of at least one spring element, a stop or the like.

7. Wind power plant according to one of the preceding claims 1 to

6, dad urch indicated that

on the one hand, this rocking motion of the at least one wing (1 1, 31, 41) and on the other hand, this up and down movement of the Längseiements (1 5, 35, 45) each form their own resonant circuit in the operating state, which run synchronously to each other and preferably with the Natural frequency of the resonant circuits work.

8. Wind power plant according to one of the preceding claims 1 to

7, dad urch marked that

the wing or wings are each made of a lightweight material, for example a fabric.

9. Wind power plant according to one of the preceding claims 1 to

8, characterized in that

the pivot axis (A) offset from the center of the respective wing (31) is arranged so that a wind torque is effected on this and an automatic stimulation of the rocker of the wing takes place in the oncoming wind.

10. Wind turbine according to claim 9, characterized Porsche Style nzeichnet that the pivot axis (A) is offset to the center of the respective wing (31) that the wing surface {31 ') in front of the pivot axis at which the wind is incident, smaller than the wing surface (31 ") behind it.

1 1. Wind turbine according to one of the preceding claims 1 to 1 0, characterized Porsche Style nzeichnet that

an up and down movement of the longitudinal element or the rocking of the wing (1 1) initiating or damping control device (20) is integrated in the longitudinal element.

1 2. A wind turbine according to claim 1 1, characterized in that the control device (20) as an electromagnetic I mpulsgeber (23) is formed in the longitudinal element, which moves an armature (24) in the longitudinal member by a coil surrounding this and up.

1 3. Wind power plant according to one of the preceding claims 1 to

12, characterized in that

a plurality of spaced successively wings or pairs of wings are each mounted rockably on a longitudinal element, so that generates a wave motion of the air flow and from this the energy transfer is increased.

14. Wind power plant according to one of the preceding claims 1 to

1 3, characterized Porsche Style nzeichnet that

on the longitudinal element a plurality of superposed wings or pairs of wings are mounted tiltably, rocking in synchronism with each other, so that this is matched with the up and down movement of the length element.

1 5. Wind turbine according to claim 1 or 2, characterized in that

on the at least one wing, preferably on both sides on its underside to its pivot axis (A) engages each one held at the longitudinal element spring member, which are designed such that they cause at rest a leveling of the at least one wing in a horizontal plane thereof.