FR3086980A1 - E-M-A RECIPROCATING WIND TURBINE - Google Patents

Abstract

A) Wind Turbine with Alternative Movement allowing the use of weak winds. B) It is composed of several pendulums oscillating parallel side by side but in an opposite or offset manner whose movement is triggered by the difference in pressure exerted by the wind on the flat surfaces carried by each pendulum at their top and which offer a surface exposed to the wind or in profile thanks to their movable shutters which constitute their entire surface and whose synchronized opening is alternated. The pendulums are all connected to their base by a push hinge system to the same crankshaft which makes all the pendulums interdependent. The crankshaft is then connected to a mechanical variator which adapts the rotation. C) The design of this wind turbine makes it possible to obtain a very large surface of exposure to the wind as well as a large lever arm which allows it to use low winds. D) This wind turbine is intended for all uses of a wind turbine. E) Figure for the abstract: Figure 3 page 12

Description

Technical area

The present invention relates to a wind turbine.

State of the art

Historically men have sought to harness the force of the wind. They used this energy on earth to turn the first mills and on the seas to move their boats forward with sails.

Then, much later, they used this free, inexhaustible and non-polluting force to drive electric generators.

These fields of wind turbines are now blooming all over our countryside.

Up to now, wind turbines have been limited to the rotary movement, to the windmill system. The force of the wind acting on oblique surfaces (the blades) to its direction, arranged all around an axis, causes the rotation of the latter whether horizontal or vertical. Their reliability is proven but they have a major handicap; they only start to supply energy with sustained winds, which limits their production capacity.

All of these devices using rotary motion are wind turbines.

Their output is directly dependent on the surface of their receiving blades of the energy of the wind and the LEVER ARM which transmits this force.

In these different systems with rotary movement these two values are low.

If the rotary system was initially retained and then developed to extend to the scale of the whole planet it is that their first designers sought to imitate and reproduce a natural movement that they could observe in their environment: fall swirling leaves of certain trees or their seeds, movement of floating objects on the surface of the water, ... and that the primary rotation of the axis of these devices

-2 allows direct drive of a pulley, machine, generator, ...,

In order to increase these values: exchange surface and lever arm, it is enough to pass from the rotary system of the turbine type which one can qualify as passive to an alternative system of pendulum with valves which one can qualify as active always powered by the wind,

Statement of the invention

This new type of wind turbine consists of several rigid but mobile vertical pendulums, articulated at their base on an axis and each carrying at their top a rectangular panel of flat surface, also vertical, which is the receiver of the energy exposed facing the wind (See figure n ° l, page 10).

Operating on the principle of the “Roman balance”, each balance is a lever arm which transmits its force to the lower part thanks to a push-type joint by multiplying its force according to the equation:

F = resulting secondary force (final power obtained) L = long length of the upper arm (a-b) £ = short length of the lower arm (a-c) f = primary force exerted on the top of the lever arm

Acting like a piston, the pusher joint at the lower end of the lever will transmit the energy released to a connecting rod which will in turn cause the movement of a crankshaft which allows to find the rotary movement essential for driving d 'an electric or other generator, (See figure n ° 2 on page 11).

The return of the brace arm is only possible under the following three conditions:

The wind energy receiving panel is entirely composed of several pivoting mobile panels synchronized with electric or other control, which are oriented parallel to the air streams when the brace arm returns. By fading they thus offer a minimum of air resistance.

(2) Most of the energy required to return the balance to its starting position is provided by another balance opposite the first, to which it is integrally connected by the crankshaft according to the principle of the bicycle crankset: the push on a pedal causes the other to go up, this being possible thanks to their movable flaps which work in opposite directions, when one is in the open position, the other is in the closed position (see figure n ° 3 on page 12).

(3) The amplitude of the oscillatory movement must limit the rise of the arm against weightlessness to a minimum (area of relative equilibrium), which allows optimization of the frequency of the oscillations (see figure n ° 4 on page 13) .

We can in this way add as many arms as the technology allows, 2, 3, 4, 5 ... just as we do with the cylinders of an internal combustion engine (see figure n ° 5 on page 14). Just balance each connecting rod to the crankshaft.

This new wind turbine is made up of several pendulums high enough each carrying a receiving head made up of mobile panels forming a large surface area to combine two essential conditions:

(1) reception of constant and linear winds generate sufficient force at the lower end of the lever since the force of a lever arm is directly dependent on its length and its fulcrum.

It is a tapered and profiled rigid mast, articulated at its base on an axis. It is held laterally by two rigid guys which are fixedly attached to the mast in their upper part and articulated in the lower part on the same axial plane as the axis of oscillation of the pendulums.

To increase or reduce the lever arm you can add a telescopic system which allows you to modify the length of the balance (see figure n ° 2 on page 11).

In order to guarantee the maintenance of each balance in the event of a broken rod, a second crankshaft can be placed parallel to the first on the other side of the axis of oscillation of the balance. In this case, all the pendulums will receive a second pusher joint opposite the first and connected, also to a balanced rod on this second crankshaft (see figure n ° 5 on page 14).

The receiving head

It is rectangular, flat and rigid. Its entire surface is made up of multiple rigid rigid, flat and rectangular panels, the synchronized movement of which is electrically or mechanically allows them to expose their entire surface either facing the wind or in profile at the time of each maximum amplitude of the pendulums.

In order to optimize the exposure of the entire "receiving head", it is attached in the lower part by a horizontal axial articulation, and moved by a mechanical system which allows it to keep its verticality facing the wind whatever the position of the pendulum.

In order to orient the whole receiving head "as close to the wind" as possible, it can be fixed on a vertical axis with a system

- 5 control which allows it to keep its orientation facing the wind (see figure n ° 2 on page 11).

Under the thrust of the wind on the panels in the closed position, the masts will make a slow pendulum movement on their axis held on the ground, causing the rotation of the crankshaft to which they are connected by their connecting rod.

This slow primary rotation is then accelerated by means of a mechanical variator to adapt the speed of rotation to the needs of an electric generator or other (see figure n ° 3 on page 12).

With this new wind turbine concept we are in the presence of a machine having the same characteristics as an internal combustion engine: pivoting movable panels acting as valves (intake --- exhaust), of a linear force transmitted to a couple connecting rod - crankshaft which transforms it into rotary force, adapted to its exit by a gearbox and having several pistons, we are thus in the presence of a true WIND ENGINE.

The accompanying drawings illustrate the invention;

Figure 1 page 10 illustrates the concept of the lever arm

Figure 2 page 11 shows the different elements of a wind turbine

Figure 3 on page 12 shows a typical set of the E.M.A. system.

Figure 4 page 13 shows the amplitude of the oscillatory movement

Figure 5 on page 14 shows the different scalable solutions of the system.

Typical embodiment (see figure 3 on page 12)

In this “typical” embodiment intended to drive an electric generator, the balance has a height of 100 meters and the receiving head a dimension of 30 meters high by 20 meters wide, ie a total area of 600 square meters.

Its articulation with the pendulum is carried out at its base which brings the height of the entire structure to 130 meters.

The mobile panels constituting the surface of the receiving head will have a height of 3 meters and a width of 2 meters. Their pivoting articulation will be carried out by a vertical central axis. All these panels will be motorized and controlled by an automaton which will ensure 1 / simultaneous opening and closing but reversed on the two pendulums.

The pusher joint is made 5 meters above the swing axis of the pendulums, bringing the ratio of the lever arms to a coefficient of 23.

This “typical” reciprocating wind turbine is made up of two pendulums oscillating parallel side by side and in opposite directions, made integral by a system of connecting rods, the foot of which is fixed to the pusher joint in the lower part of each pendulum, near the upper of the oscillation axis and whose connecting rod head is connected to the same crankshaft and balanced 180 degrees thereon.

The two pendulums carry at the top the same flat surface exposed to the wind which is entirely composed of multiple pivoting mobile panels whose opening and closing with electric control, or others, is controlled by an automaton. These two pendulums will enter into opposite oscillation when the wind will successively press the panels in the closed position when each pendulum is at its maximum amplitude, ascent facing the wind.

The crankshaft is then connected to a mechanical variator which adapts the rotations to the need of an electric generator or any other device requiring a driving force.

The present invention of a reciprocating wind turbine is intended for the same uses as all existing wind turbines, that is to say for driving electric generators, pumps, or any other machine requiring a driving force.

The EMA system consists of at least two pendulums which oscillate at the same amplitude in an offset manner and the oscillating balancing is triggered by the difference in wind pressure on the flat surfaces which each pendulum carries at their top and whose exposure faces in the wind or in profile causes the rotation of at least one crankshaft. When the E-M-A system. has two pendulums their movement will be opposite. When the E-M-A system has more than two pendulums, their oscillation will be offset.

The movable panels constituting the receiving head of each pendulum will have a flat or substantially flat surface and will be the receptors of wind energy. They will each be articulated around their central, vertical or horizontal axis. They all pivot together by a drive system instantaneously or gradually to expose their surface on the same pendulum perpendicularly to the wind or parallel to the wind on the opposite pendulum or in a staggered and successive manner when the EMA system has more than two pendulums for then each keep their position for the duration of a half oscillation.

These mobile panels can, by their drive, be placed all together regardless of their balance on a plane parallel to the wind for feathering if necessary.

The receiving head is secured to the top of the balance by a horizontal articulation and a drive system which allows it to maintain its verticality and by a vertical articulation and a drive system which allows it to modify its orientation facing the wind.

Claims (9)

Claims (1) Claim No. 1 relates to a reciprocating wind system called EMA for Reciprocating Wind Turbine characterized in that it consists of at least two vertical pendulums oscillating side by side parallel but offset, articulated on the same horizontal low axial plane, the oscillating swing of which is triggered by the difference in wind pressure on the flat surfaces which each pendulum carries at their top and whose exposure to the wind or in profile causes the rotation of at least one crankshaft to which the pendulums are made integral by at least one pusher articulation head of a connecting rod balanced to the crankshaft and articulated near the upper or lower of the axis of oscillation. (2) The EMA system according to claim No. 1 characterized in that it comprises at least two pendulums oscillating according to the same amplitude and in an opposite manner when the EMA system comprises two pendulums and in an offset manner when the EMA system comprises more than two pendulums. (3) The EMA system according to claim No. 1 is characterized in that it comprises at least two pendulums each provided at their apex with an identical or substantially planar flat surface receiving wind energy and which is called head receptor. (4) The EMA system according to claim 3 is characterized in that the receiving head consists of several movable panels each pivoting about their vertical or horizontal axis and actuated by a drive system which directs them perpendicularly to the wind or parallel to the wind at the time of the maximum amplitude of each balance. (5) The EMA system according to claim 4 is characterized in that the mobile panels all pivot together by a drive system instantaneously or gradually to expose their surface on the same pendulum perpendicular to the wind or parallel to the wind on the opposite pendulum or in a staggered and successive manner when the EMA system has more than two pendulums to then each keep their position for the duration of a half oscillation. (6) The EMA system according to claims 4 and 5 is characterized in that the movable panels can, by their drive means, be placed all together regardless of their balance on a plane parallel to the wind for their implementation. flag if necessary. (7) The EMA system according to claim 3 is characterized in that the receiving head is made integral with the top of the balance by a horizontal articulation and a drive system which allows it to maintain its verticality, and by an articulation vertical and a training system that allows it to change its orientation facing the wind. (8) The EMA system according to claim 3 is characterized in that the pendulums are made up of a rigid frame and of tapered shape and that they comprise a telescopic system driven by a drive system which allows them to modify the length of their lever arm. (9) The EMA system according to claim No. 1 is characterized in that when the EMA system comprises a second crankshaft, the latter will be placed parallel to the first crankshaft but at its opposite on the other side of the axial plane of the axis and all the connecting rods attached to this crankshaft will be balanced to this same crankshaft.