OA19641A - Oscillatory mechanism with simultaneous crossed-centrifugations, machine and implementation method. - Google Patents

Abstract

The object of the present invention is a mechanism (1), comprising: a base (2); a pendulum (6) mounted pivotally in relation to the base (2) about a pendulum axis (AO); a first eccentric element (10) generating a first moment (Ml) of gravitational force (PI) about a first axis (Al); a second eccentric element (20) generating a second moment (M2) of gravitational force (P2) about a second axis (A2); and a synchronization system (8) of the first eccentric element (10) and the second eccentric element (20) according to a synchronized counter-rotating rotational movement (RI; R2); wherein: the pendulum axis (A0) and the axes (Al; A2) of the eccentric elements (10; 20) are parallel and arranged in the same plane (P0) integral to the pendulum (6); the axes (Al; A2) of the eccentric elements (10; 20) are supported by the pendulum (6), respectively above and below the pendulum axis (A0); and when the mechanism (1) is in operation: the eccentric elements (10; 20) are movable in synchronized counter-rotating rotation (RI; R2), with cross-centrifugations, the pendulum (6) pivots alternately (Bl; B2) on one side then the other, amplifying the rotational movement (RI; R2) of the eccentric elements (10; 20), by means of simultaneous cross-thrusts of the pendulum (6) against the axes (Al; A2) of said eccentric elements (10; 20), and by the transmission of torque to the synchronization system (8), and the energy generated by centrifugation within the mechanism (1) is recoverable by coupling an energy recovery system (80) to the synchronization system (8).

Description

OSCILLATORY MECHANISM WITH SIMULTANEOUS CROSSEDCENTRIFUGATIONS, MACHINE AND IMPLEMENTATION METHOD

The présent invention relates to an oscillatory mechanism with simultaneous crossed-centrifugations, for recovering energy, for any conceivable application.

The invention also concems a machine for the production of energy, or any other application, comprising at least one such a mechanism. For example, the machine may be a motor, a generator, or a blender. In particular the invention concems an energy production machine, preferably comprising several mechanisms coupled together in parallel and/or sériés.

The invention also relates to a method for implementing such a mechanism.

In the mechanical field, there are many motion transmission mechanisms, such as planetary gear trains or crankshafts, suitable for equipping machines for the production of energy or any other application. The yields obtained with known mechanisms are not however entirely satisfactory.

The Applicant has developed several energy recovery mechanisms, such as the balanced mechanism described in the application WO2017064379.

The purpose of the présent invention is to propose new mechanisms that enable to recover energy and to improve the performance of a machine.

For this purpose, the object of the invention is a mechanism, comprising: a base; a pendulum mounted pivotally in relation to the base about a pendulum axis; a first eccentric element generating a fïrst moment of gravitational force around a fïrst axis; a second eccentric element generating a second moment of gravitational force about a second axis; and a synchronization System for synchronizing the fïrst eccentric element and the second eccentric element according to a synchronized counter-rotating rotational movement; wherein: the pendulum axis and the axes of the eccentric éléments are parallel and arranged in a same plane intégral to the pendulum; the axes of the eccentric éléments are supported by the pendulum, respectively above and below the pendulum axis; and when the mechanism is in operation:

- the eccentric éléments are movable in synchronized counter-rotating rotation, with cross-centrifugations,

- the pendulum pivots altemately on one side then the other, amplifying the rotational movement of the eccentric éléments, by means of simultaneous cross-thrusts of the pendulum against the axes of said eccentric éléments, and by the transmission of torque to the synchronization System, and

- the energy generated by centrifugation within the mechanism is recoverable by coupling an energy recovery System to the synchronization System.

Thus, the invention enables to generate energy, thanks to the crosscentrifugation forces resulting from the movements of the eccentric éléments and the movements of the pendulum.

The centrifugal forces generated by the eccentric éléments provide the energy necessary for the rotational drive thereof. The more the centrifugal forces increase, the more this rotation is facilitated.

The pivoting of the pendulum enables to multiply the centrifugal forces generated by the eccentric éléments.

According to other advantageous characteristics of the mechanism according to the invention, taken in isolation or in combination:

- The axes of the eccentric éléments are positioned équidistant from the pendulum axis.

- The counter-rotating éléments hâve the same mass and the same dimensions.

- The pendulum axis and the axes of the eccentric éléments are arranged in the same vertical plane when the mechanism is at rest.

- The eccentric éléments hâve a generally increasing section, as the distance from the axis of rotation increases.

- The eccentric éléments are arrangée! such that when the mechanism is in operation, the eccentric éléments intersect at a high and a low position.

- The eccentric éléments are arranged such that when the mechanism is in operation, the eccentric éléments intersect at the left latéral position and at the right latéral position. Advantageously, the moments of force of gravity of the eccentric éléments hâve the same value and the same direction, variable according to the angular position thereof about the axes; for each angular position of the eccentric éléments about the axes, the mechanism has a balance configuration at rest.

- A counterweight is attached to the lower part of the pendulum and amplifies the pivoting thereof on one side then the other, which amplifies the simultaneous cross-thrusts of the pendulum against the axes of the eccentric éléments and the transmission of torque to the synchronization System.

- The mechanism comprises a locking System opérable between: a configuration for locking the eccentric éléments in the high position, preventing them from describing the synchronized counter-rotating rotational movement, and a configuration for releasing the eccentric éléments, allowing them to describe the synchronized counter-rotating rotational movement.

- The locking System comprises a pivoting hook mounted on the pendulum and a hooking element intégral to one of the eccentric éléments.

- The synchronization System comprises gearwheels mounted on the pendulum axis and the axes of the eccentric éléments.

- The synchronization System comprises:

- a first support shaft mounted pivotally on the pendulum, centered on the first axis and intégral to the first eccentric element,

- a second support shaft mounted pivotally on the pendulum, centered on the second axis and intégral to the second eccentric element,

- a first central gearwheel and a first intermediate gearwheel intégral to the first support shaft, the first central gearwheel having a diameter and number of teeth double that of the first intermediate gear,

- a second central gearwheel and a second intermediate gearwheel intégral to the second support shaft, the second central gear wheel meshing with the first central gearwheel, the second central gearwheel having a diameter and number of teeth equal to that of the first central gearwheel and double that of the second intermediate gearwheel,

- a first latéral shaft and a second latéral shaft centered on the pendulum axis,

- a first latéral gearwheel intégral to the first latéral shaft and meshing with the first intermediate gearwheel,

- a second latéral gearwheel intégral to the second latéral shaft and meshing with the second intermediate gearwheel, where either the first latéral shaft or the second latéral shaft is intended to be coupled to the energy recovery System.

- During one 360° rotation of the eccentric éléments, between two pivotings of the pendulum, the gearwheels receive the torque being captured between the thrusts of the pendulum and the rotation of the eccentric éléments, the torque propelling the eccentric éléments downwards, accelerating them, then upwards in opposing the forces of gravity.

- The eccentric éléments are in the shape of wind turbine blades.

The invention also relates to a machine, characterized in that it comprises: at least one mechanism as mentioned above, and an energy recovery System coupled to a synchronization System.

According to other advantageous characteristics of the machine according to the invention, taken in isolation or in combination:

- The machine comprises at least one pair of mechanisms coupled in parallel or in sériés, wherein the pendulums altemately pivot in a counter rotating manner in relation to one another.

- Within the pair of mechanisms, ail the moving parts of a first mechanism are counter-rotating in relation to the corresponding moving parts of the other mechanism.

- The pair of mechanisms comprises eccentric éléments arranged in phase opposition, such that when the machine is in operation, the eccentric éléments of a first mechanism intersect at a high position while the eccentric éléments of a second mechanism intersect at a low position.

- The pair of mechanisms comprises eccentric éléments arranged in phase such that when the machine is in operation, the eccentric éléments of a first mechanism intersect at a left latéral position while the eccentric éléments of a second mechanism intersect at a right latéral position.

- The machine is an energy production machine, for example for a motor or generator. Altematively, the machine may be a blender, or any other type of conceivable machine.

The object of the invention is also a method for implementing a mechanism such as that described above.

The method is characterized in that it comprises:

- a startup step, for imparting a synchronized counter-rotating rotational movement to the eccentric éléments;

- an operating step, during which:

- the eccentric éléments are movable in synchronized counter-rotating rotation, with cross-centrifugations,

- the pendulum pivots altemately on one side then the other, amplifying the rotational movement of the eccentric éléments, by means of simultaneous cross-thrusts of the pendulum against the axes of said eccentric éléments, and by the transmission of torque to the synchronization System, and

- an energy recovery System coupled to the synchronization System recovers energy generated by centrifugation within the mechanism;

- if necessary during the operating step, restarting steps consisting in imparting new momentum to the eccentric éléments in the synchronized counter-rotating rotational movement thereof; and in that the energy recovered by the energy recovery System during the operating step is greater than the energy expended during the startup step and the restarting steps.

According to other particular characteristics of the method according to the invention, taken in isolation or in combination:

- During the operating phase, for each révolution of the eccentric éléments six centrifugations are produced:

- a fîrst centrifugation, so-called vertical, due to the descent of the eccentric éléments;

- a second centrifugation, so-called horizontal, due to the pivoting of the pendulum on a fîrst side, pushing against the fîrst axis;

- a third centrifugation, so-called horizontal, due to the pivoting of the pendulum on a fîrst side, pushing against the second axis;

- a fourth centrifugation, so-called vertical, due to the descent of the eccentric éléments;

- a fïfth centrifugation, so-called horizontal, due to the pivoting of the pendulum on a second side, pushing against the fîrst axis in the opposite direction to the second centrifugation;

- a sixth centrifugation, so-called horizontal, due to the pivoting of the pendulum on a second side, pushing against this second axis in the opposite direction to the second centrifugation;

where the second and third centrifugations are simultaneous at the end of the fîrst centrifugation and at the start of the fourth centrifugation, while the fïfth and sixth centrifugations are simultaneous at the end of the fourth centrifugation and at the start of the fîrst centrifugation.

- During the operating phase, the pivoting of the pendulum increases the accélération of the rotational movement of the eccentric éléments during the descent thereof, then atténuâtes the décélération of the rotational movement of the eccentric éléments during the ascent thereof.

- The startup step is performed by means of gravity, releasing the eccentric éléments arranged at the high position.

- The startup step is performed using a crank coupled to the synchronization System.

- The startup step and/or the restarting steps are performed using a drive motor coupled to the synchronization System.

- The startup step is performed by simply pushing against one of the eccentric éléments.

- The energy recovery System comprises a generator.

- The energy recovery System comprises a motor-generator which is also used for the startup step and/or the restarting steps.

- The eccentric éléments are in the shape of wind turbine blades, wherein the windage thereof is used for the startup step and/or the restarting steps.

The invention will be better understood upon reading the following description, given solely as a non-limiting example, and made with reference to the accompanying figures wherein:

- figure 1 is a front view of a mechanism according to the invention, comprising a base, a pendulum and two eccentric éléments, which are shown in the lower position;

- figure 2 is a partial front view of the mechanism, wherein the balance is shown inclined, while the eccentric éléments are shown in latéral positions;

- figure 3 is a section along the line III-III in figure 1 partially showing the mechanism in a larger scale;

- figure 4 is a section along the line IV-IV in figure 1 showing a mechanism according to a second embodiment of the invention;

- figures 5 to 12 schematically show the different operating steps of the mechanism of figures 1 to 3;

- figures 13 and 14 show, in front views, two variants of the eccentric éléments that are intended to equip the mechanism according to the invention;

- figure 15 is a front view of a machine according to the invention, comprising two mechanisms coupled in sériés by a chain and a connecting rod; and

- figure 16 is a view, similar to figure 15, of a machine according to another embodiment of the invention, comprising two mechanisms coupled in sériés to another coupling System.

A crossed-centrifugations mechamsm 1 according to the invention is shown in figures 1 to 3.

The mechanism 1 comprises a base 2, a pendulum 6, a synchronization System 8, and two eccentric éléments 10 and 20.

The pendulum 6 is movable in rotation about a pendulum axis A0 intégral to the base 2, while the eccentric éléments 10 and 20 are movable in rotation about axes Al and A2 intégral to the pendulum 6. The axes A0, Al and A2 are horizontal, parallel and arranged in the same plane PO intégral to the pendulum 6. The axis of rotation Al of the element 10 is arranged above the axis A0, while the axis of rotation A2 of the element 20 is arranged below the axis A0. The axes Al and A2 are équidistant from the axis A0.

The base 2 comprises four vertical posts 3, two horizontal posts 4, and horizontal reinforcements 5. Each horizontal post 4 is supported by means of two vertical posts 3, thus forming two post assemblies 3 and 4 arranged in parallel and connected by means of the horizontal reinforcements 5.

The pendulum 6 is positioned vertically within the intermediate space delimited by the posts 4 and the reinforcements 5. The pendulum 6 is mounted pivotally in relation to the base 2, more precisely by means of the posts 4, about the pendulum axis A0 intégral to the posts 4.

The pendulum 6 comprises four metallic plates, namely two latéral plates 61 and two central plates 62, arranged parallel to one another and to the posts 4 The plates 61 and 62 are connected by means of four horizontal bars 63, arranged at the four corners of the pendulum 6.

As shown in figure 3, the pendulum axis AO is embodied by two latéral shafts 31 and 32, each mounted pivotally through an upright 4 and a plate 61.

A counterweight 68 is attached to the lower part of the beam 6, on a horizontal axis A3 located in the plane PO, parallel to the axis AO, Al and A2. The counterweight 68 amplifies the pivoting of the pendulum 6, altemating on one side then the other, as shown by the arrows B1 and B2 in figure 2.

The synchronization System 8 comprises various éléments 11, 12, 13, 21, 22, 23, 31, 32, 33 and 34 coupled to each other, as shown in figure 3.

A fîrst support shaft 11 is mounted pivotally on the pendulum 6, centered on the first axis Al and intégral to the first eccentric element 10, The shaft 11 is supported by a latéral plate 61 and the two central plates 62. A fîrst central gearwheel 12 and a fîrst intermediate gearwheel 13 are intégral to the fîrst support shaft 11.

A second support shaft 21 is mounted pivotally on the pendulum 6, centered on the second axis A2 and intégral to the second eccentric element 20. The shaft 21 is supported by the other latéral plate 61 and the two central plates 62. A second central gearwheel 22 and a second intermediate gearwheel 23 are intégral to the support shaft 21.

The gearwheels 12 and 22 hâve the same diameter and the same number of the teeth. In the same way, the gearwheels 13 and 23 hâve the same diameter and the same number of teeth. The gearwheels 12 and 22 hâve a diameter and a number of teeth double that of the gearwheels 13 and 23. For example, the gearwheels 12 and 22 hâve forty-eight teeth, while the gearwheels 13 and 23 hâve twenty-four teeth.

The latéral shafts 31 and 32 are centered on the pendulum axis A0. A first latéral gearwheel 33 is intégral to the first latéral shaft 31. A second latéral gearwheel 34 is intégral to the second latéral shaft 32.

The shafts 11, 21, 31, and 32 are supported by bearings, for example bail bearings, not shown for the purpose of simplification in figures 1 and 3.

The gearwheels 12 and 22 are positioned between the two central plates 62 and mesh with each other. The gearwheels 13 and 33 are positioned with the element 10 between two plates 61 and 62, and mesh with each other. The gearwheels 23 and 34 are positioned with the element 20 between the two other plates 61 and 62, and mesh with each other.

By virtue of a synchronization System 8, a synchronous movement can be transmitted from the shaft 31 to the shaft 32, by means of the shafts 11 and 21. In practice, the shafts 11 and 21 tum at the sarne speed, but in opposite directions of rotation RI and R2.

Thus, the synchronization System 8 enables to drive the first eccentric element 10 and the second eccentric element 20 in a synchronized counter-rotating rotational movement R1/R2.

By way of example, when the mechanism 1 is in operation, the rotational speed R1/R2 may be of the order of 500 révolutions per minute.

The eccentric éléments 10 and 20 hâve spécial shapes that are designed to generate centrifugal forces. By way of example, the éléments 10 and 20 each weigh 50 kg, while the counterweight 68 weighs 60 kg. Preferably, the mass of the éléments 10 and 20 is equal to the mass of the counterweight 68. For example, the éléments 10 and 20 each weigh 50 kg, while the counterweight 68 weighs 100 kg.

The element 10 has a center of gravity G1 that is eccentric in relation to the axis Al and is movable in rotation RI about said axis Al. The element 10 generates a moment Ml of gravitational force PI about the axis Al.

The element 20 has a center of gravity G2 that is eccentric in relation to the axis A2 and is movable in rotation R2 about said axis A2. The element 20 generates a moment M2 of gravitational force P2 about the axis A2.

The crossed-centrifugations are described in more detail below with reference to figures 5 to 12.

The energy generated by centrifugation within the mechanism 1 is recoverable by coupling an energy recovery System 80 to the synchronization System 8.

Tn figure 3, the energy recovery System 80 is coupled to the synchronization System by means of the shafl 32.

The System 80 comprises a generator 81, a notched chain 82 and a gearwheel 83 attached to the shaft 32. The generator 81 is shown attached to a post 4 for simplification purposes, but may be positioned at any other suitable location. The chain 82 is indicated by a dotted line for the sake of simplification. The chain 82 connects the gearwheel 83 to the generator 81.

The method of implémentation of the mechanism 1 comprises a startup step, an operating step, and if necessary, during the operating phase, restarting steps.

The startup step consists in imparting the synchronized counter-rotating movement of rotation R1/R2 to the eccentric éléments 10 and 20. Various starting means are described below.

During the operating phase, the eccentric éléments 10 and 20 are movable in synchronized counter-rotating rotation RI / R2, with crossed-centrifugations. The pendulum 6 altemately pivots B1/B2 on one side then the other, amplifying the movement of the eccentric éléments 10 and 20, by means of simultaneous crossed-thrusts of the pendulum 6 against the axis Al and A2, and by the transmission of torque to the gearwheels 13 and 23. The energy recovery System 80 coupled to the synchronization System 8 recovers energy generated by centrifugation within the mechanism 1.

The restarting steps consist in imparting new momentum to the eccentric éléments 10 and 20 within the counter-rotating rotational movement RI / R2 thereof.

Within the scope of the invention, the energy recovered by the energy recovery System 80 is greater than the energy expended during the startup step and the restarting steps.

The startup step can be performed by means of gravity, releasing the eccentric éléments 10 and 20 arranged at the high position.

For this purpose, the mechanism 1 can comprise a locking System 40, operated between a configuration for locking the eccentric éléments 10 and 20 in the high position, and a configuration for releasing the eccentric éléments 10 and 20. In the locking configuration, the System 40 prevents the éléments 10 and 20 from describing the synchronized counter-rotating rotational movement RI / R2. In the releasing configuration, the System 40 releases the éléments 10 and 20 which can then describe the synchronized counter-rotating rotational movement RI / R2.

In the example shown in figures 1 to 3, the System 40 comprises a pivoting hook 41 mounted on the pendulum 6 and an attachment member 42 intégral to the element 10, wherein the axis Al is situated above the axes A0 and A2. The hook 41 has a notch 43, within which the member 42 lodges when the element 10 is in the high position.

The pivoting of the hook 41 between the locking and releasing configurations can be controlled by any suitable means, not shown for the purpose of simplification. The hook 41 is raised in order to release the member 42 from the notch 43, thereby allowing the rotation RI / R2 of the éléments 10 and 20. The hook 41 is lowered in order to retain the member 42 within the housing 43 when the element 10 passes to the high position, thus arresting the rotation of the element 10 and therefore also that of the element 20.

According to a variation, the startup step is performed using a crank 58 coupled to the synchronization System 8. In the example of figure 3, said crank 58 is mounted on the shaft 31. The crank 58 can particularly be used when the éléments 10 and 20 start in the low position.

According to another variation, the startup step can be performed using a drive-motor 51 coupled to the synchronization System 8. In the example of figure 3, the motor 51 is coupled by means of a toothed chain 52 to a gearwheel 53 mounted on the shaft 31. For the purposes of simplification the motor 51 is shown attached to a post 4, but may be positioned at any other suitable location. For the sake of simplification the chain 52 is indicated by a dotted line. In an advantageous manner, the motor 51 can also be used for the restarting steps.

According to other particular variants of the mechanism 1, performing the startup step by simply pushing against one of the eccentric éléments 10 and 20 may be envisaged.

A mechanism 1 according to a second embodiment of the invention is shown in figure 4.

The base 2 has vertical posts 3 supporting the axes 31 and 32 in rotation about the pendulum axis A0. The energy recovery System 80 comprises a motorgenerator 81, suitable for fulfilling the fonction of both motor and generator. Thus, the motor-generator 81 can also be used for the startup step and/or the restarting steps of the mechanism 1.

The counterweight 68 comprises two weights 681 positioned against the outer face of the central plate 62, as well as a screw-nut assembly 682 for fixing the weights 681 in position. The screw-nut assembly 682 passes through the plates 62 and the weights 682 along the axis A3 parallel to the axes A0, Al and A2.

Except for these différences, the operation of the mechanism 1 in figure 4 is similar to the operation of the mechanism 1 in figures 1 to 3.

In figures 5 to 12 the different operating steps of the mechanism 1 of figures 1 to 3 are shown.

In this example, as shown in figure 5, the éléments 10 and 20 are initially in the high position. Figures 6 to 8 show the descent of the éléments 10 and 20. Figure 9 shows the éléments 10 and 20 in the low position. Figures 10 to 11 show the ascent of the éléments 10 and 20. The rotations RI and R2 are counterrotating. The éléments 10 and 20 intersect at the high and low positions.

The element 10 is subjected to a gravitational force PI exerted at the center of gravity G1 thereof. The element 20 is subjected to a gravitational force P2 exerted at the center of gravity G2 thereof. The counterweight 68 is subjected to a gravitational force P3 exerted upon the axis A3.

Figures 5 and 6 show the starting of the mechanism 1, when the éléments 10 and 20 are initially at the high position. In this example, the element 10 starts the rotational movement RI thereof to the left while the element 20 begins the rotational movement R2 thereof to the right. Given that the center of gravity G1 of the element 10 is further from the pendulum axis A0 than the center of gravity G2 of the element 20, the counterweight 68 is driven pivotally B1 to the right.

Figure 6 shows the mechanism 1 during the pivoting B1 and at the beginning of the descent. At this instant, given the respective positions of the pendulum 6 and the éléments 10 and 20, the potential energy of the element 10 is greater than the potential energy of the element 20.

The pivoting B1 simultaneously pushes against the axis Al to the left and the axis A2 to the right. This increases the distance traveled by the center of gravity Gl, and therefore increases the kinetic energy of the element 10. On the other hand, this reduces the distance traveled by the center of gravity G2, and therefore reduces the kinetic energy of the element 20. The pendulum 6 transmits the centrifugal energy to the éléments 10 and 20 by means of the pivoting Bl, in addition to the centrifugal energy thereof by means of the rotation RI / R2.

Also, the pivoting Bl produces effects at the meshing of the gearwheels 13 and 33 and at the meshing of the gearwheels 23 and 34. More specifically, the pendulum 6 transmits positive torque to the gearwheels 13 and 33, and négative torque to the gearwheels 23 and 34. This further increases the kinetic energy of the element 10, and further reduces the kinetic energy of the element 20.

Insofar as the potential and kinetic energies thereof are greater, the element 10 has a prédominant influence within the mechanism 1. Note that because of the synchronization System 8, the rotational speeds RI and R2 must be equal. Thus, the pivoting B1 increases the accélération of the rotation movements RI and R2.

Figure 7 shows the fïrst moment in time when the centers of gravity Gl and G2 are équidistant from the pendulum axis A0. The pivoting of the pendulum 6 is about to reverse. At this instant, the éléments 10 and 20 hâve the same potential energy.

Figures 8 to 10 show the end of the descent and the start of the ascent of the éléments 10 and 20. Given that the center of gravity G2 of the element 20 is farther from the pendulum axis A0 than the center of gravity Gl of the element 10, the counterweight 68 is driven pivoting B2 to the left.

Given the respective positions of the pendulum 6 and the éléments 10 and 20, the potential energy of the element 20 is greater than the potential energy of the element 10.

The pivoting B2 simultaneously pushes against the axis Al to the right and the axis A2 to the left. This reduces the distance traveled by the center of gravity Gl, and therefore reduces the kinetic energy of the element 10. On the other hand, this increases the distance traveled by the center of gravity G2, and therefore increases the kinetic energy of the element 20.

Also, the pivoting B2 produces effects at the meshing of the gearwheels 13 and 33 and at the meshing of the gearwheels 23 and 34. More specifically, the pendulum 6 transmits négative torque to the gearwheels 13 and 33, and positive torque to the gearwheels 23 and 34. This further increases the kinetic energy of the element 20, and further reduces the kinetic energy of the element 10.

Insofar as the potential and kinetic energies thereof are greater, the element 20 has a prédominant influence within the mechanism 1. Thus, the pivoting B2 increases the accélération of the rotations RI / R2 during the descent of the éléments 10 and 20, and then atténuâtes the décélération of the rotations RI / R2 during the ascent of the éléments 10 and 20. The pendulum 6 transmits centrifugal energy to the éléments 10 and 20 by means of the pivoting B2, in addition to the centrifugal energy thereof by means of the rotation RI / R2. Figure 11 shows the second moment when the centers of gravity Gl and G2 are équidistant from the pendulum axis A0. The pivoting of the pendulum 6 is about to reverse. At this instant, the éléments 10 and 20 hâve the same potential energy.

Figure 12 together with figures 5 and 6 show the end of the descent and the start of the ascent of the éléments 10 and 20. Given that the center of gravity Gl of the element 10 is further from the pendulum axis AO than the center of gravity G2 of the element 20, the counterweight 68 is driven pivotally B1 to the right. During the ascent of the éléments 10 and 20 the pivoting B1 atténuâtes the décélération of the rotations RI / R2.

During the operation of the mechanism 1, maximum centrifugal energy is generated during the descent of the éléments 10 and 20, as shown in figures 5 to 9. When the moments Ml / M2 are in the same direction as the rotations RI / R2 said moments Ml / M2 accelerate the rotations RI / R2.

The altemating pivoting B1 / B2 of the pendulum 6 accompanies the éléments 10 and 20 during the synchronized counter-rotating rotational movement RI / R2 thereof. More precisely, the pivoting RI / R2 amplifies the rotational movement RI / R2 of the éléments 10 and 20, by means of simultaneous crossed-thrusts against the axes Al and A2 thereof, and by means of the transmission of torque to the System 8. The pivoting B1 / B2 increases the accélération of the rotations RI / R2 during the descent of the éléments 10 and 20, and then atténuâtes the décélération of the rotations RI / R2 during the ascent of the éléments 10 and 20. The pendulum 6 transmits centrifugal energy to the éléments 10 and 20 by means of the pivoting B1 / B2, in addition to the centrifugal energy thereof by means of the rotation RI / R2. The torque transmitted to the System 8 propels the éléments 10 and 20, downwards accelerating them, then upwards in opposing the gravitational forces PI / P2.

In practice, six centrifugations can be distinguished for each 360° révolution of the eccentric éléments 10 and 20:

- a first centrifugation, so-called vertical, due to the descent of the eccentric éléments 10 and 20;

- a second centrifugation, so-called horizontal, due to the pivoting B1 of the pendulum 6 on a first side, pushing against the first axis Al;

- a third centrifugation, so-called horizontal, due to the pivoting B1 of the pendulum 6 on said first side, pushing against the second axis A2;

- a fourth centrifugation, so-called vertical, due to the descent of the eccentric éléments 10 and 20;

- a fifth centrifugation, so-called horizontal, due to the pivoting B2 of the pendulum 6 on a second side, pushing against the first axis Al in the opposite direction to the second centrifugation; and

- a sixth centrifugation, so-called horizontal, due to the pivoting B2 of the pendulum 6 on said second side, pushing against the second axis A2 in the opposite direction to the second centrifugation.

The second and third centrifugations are simultaneous at the end of the first centrifugation and at the start of the fourth centrifugation, while the fifth and sixth centrifugations are simultaneous at the end of the fourth centrifugation and at the start of the first centrifugation.

When the mechanism 1 is operating at a rotational speed RI / R2 equal to 500 révolutions per minute, this results in 3000 centrifugations per minute.

Figures 13 and 14 show, as front views, two variants of the eccentric éléments 10 intended to equip the mechanism 1 according to the invention.

Said eccentric éléments 10 and 20 hâve a generally increasing cross-section as the distance from the axis Al increases, in such a way as to distance the center of gravity G1 with respect to the axis Al, and thus increase the centrifugal energy generated during the rotation RI. These forms offer a good compromise between mechanical strength, functionality in movement and centrifugal energy performance.

The éléments 10 and 20 can hâve other forms without going beyond the scope of the invention.

A machine according to the invention is shown in figure 15, comprising two mechanisms 1, such as that described above, coupled together in sériés.

The mechanisms 1 each comprise a pendulum 6, and share the same base 2 supporting the two pendulums 6. The mechanisms 1 hâve eccentric éléments 10 and 20 according to figure 14.

The mechanisms 1 are coupled by means of a coupling System 90 comprising a connecting rod 91, a toothed chain 92 and two gearwheels 93.

The connecting rod 91 is articulated onto a mechanism 1 at the axis A3 of the counterweight 68 at the bottom, and at the other mechanism 1 at an axis A4 located at the top, at the same distance from the axis AO as the axis A3 at the bottom.

The chain 92 extends between two gearwheels arranged vis-à-vis. For each mechanism 1, the gearwheel 93 can be mounted on the shaft 31 or 32, or possibly on the shaft 11 or 21.

When the machine is in operation, the pendulums 6 follow the counterrotating oscillatory movements B1 / B2. The upper parts thereof corne together when the lower parts thereof are moving away from each other, and vice versa.

Furthermore, the éléments 10 and 20 of one mechanism 1 intersect at the high position when the éléments 10 and 20 of the other mechanism 1 intersect at the low position. In other words, the éléments 10 and 20 of one mechanism 1 are arranged in phase opposition with respect to the éléments 10 and 20 of the other mechanism 1. Thus, when the éléments 10 and 20 of one mechanism 1 descend and generate maximum centnfugal energy, the éléments 10 and 20 of the other mechanism 1 are ascending. In other words, the ascent of the éléments 10 and 20 of one mechanism 1 is always facilitated by the descent of the éléments 10 and 20 of the other mechanism 1. The starting of the machine is facilitated, and the recovery of centnfugal energy is fiirther improved.

Ail of the moving parts of the oscillatory mechanisms 1 are counterrotating. The two pendulums 6 are coupled counter-rotating, with two oscillations for each révolution. Thus, a rotational speed of 500 revolutions/minute is équivalent to 1000 oscillations/minute.

Another machine according to the invention is shown in figure 16, comprising two mechanisms 1, such as that described above, coupled in sériés.

The coupling System 90 of the mechanisms 1 comprises a connecting rod 91, two toothed chains 92, two gearwheels 93 and two gearwheels 94. The System 90 comprises a chain 92, a gearwheel 93 and a gearwheel 94 for each mechanism 1.

The connecting rod 91 is articulated on one mechanism 1 at an axis A4 located at the top, and on the other mechanism 1 at the axis A3 at the bottom.

Each chain 92 extends between a gearwheel 93 mounted on the pendulum 6, more precisely on the shaft 11, 21, 31 or 32, and a gearwheel 94 mounted on the base 2, more precisely on a horizontal post 4.

The energy recovery system 80 may comprise a motor-generator, coupled to the axis supporting one of the gearwheels 94.

Altematively, the System 80 may comprise a generator coupled to an axis supporting one of the gearwheels 94, while a motor is coupled to the other axis supporting the other gearwheel 94.

Furthermore, the mechanism 1 or the machine comprising at least one mechanism 1 may conform differently to figures 1 to 16 without departing from the scope of the invention.

According to an example of a variant, not shown, the mechanism 1 may comprise eccentric éléments 10 and 20 in the shape of wind turbine blades. The centrifugal energy and wind energy combine when the mechanism 1 is in operation. The windage of the éléments 10 and 20 may advantageously be used for the startup step and / or the restarting steps of the mechanism 1.

According to another variant, not shown, the mechanism 1 can be devoid of a counterweight 68. This variant may in particular be of interest for the balanced mechanisms 1, insofar as it enables to gain speed and increase the kinetic energy of the mechanisms 1.

Additionally, the technical characteristics of the varions embodiments and variants mentioned above can be, in whole or for some of them, combined with each other. Thus, the mechanism 1 and the machine may be adapted in ternis of cost, functionality and performance.

Claims (15)

1. 20 CLAIMS

   1. Mechanism (1 ), comprising:

   - a base (2);

   - a pendulum (6) mounted pivotally in relation to the base (2) about a pendulum axis (AO);

   - a first eccentric element (10) generating a first moment (Ml) of gravitational force (PI) about a first axis (Al);

   - a second eccentric element (20) generating a second moment (M2) of gravitational force (P2) about a second axis (A2); and

   - a synchronization System (8) for synchronizing the first eccentric element (10) and the second eccentric element (20) according to a synchronized counter-rotating rotational movement (R1/R2).

   wherein:

   - the pendulum axis (A0) and the axes (Al; A2) of the eccentric éléments (10; 20) are parallel and arranged in a same plane (PO) intégral to the pendulum (6);

   - the axes (Al; A2) of the eccentric éléments (10; 20) are supported by the pendulum (6), respectively above and below the pendulum axis (A0); and

   - when the mechanism (1) is in operation:

   - the eccentric éléments (10; 20) are movable in synchronized counterrotating rotation (RI; R2), with cross-centrifugations,

   - the pendulum (6) pivots altemately (Bl; B2) on one side then the other, amplifying the rotational movement (RI; R2) of the eccentric éléments (10; 20), by means of simultaneous cross-thrusts of the pendulum (6) against the axes (Al; A2) of said eccentric éléments (10; 20), and by the transmission of torque to the synchronization System (8), and

   - the energy generated by centrifugation within the mechanism (1) is recoverable by coupling an energy recovery System (80) to the synchronization System (8).
2. 2. Mechanism (1) according to claim 1, characterized in that the axes (Al; A2) of the eccentric éléments (10; 20) are positioned équidistant from the pendulum axis (A0).
3. 3. Mechanism (1) according to one of the preceding daims 1 or 2, characterized in that the eccentric éléments (10; 20) hâve a generally increasing cross-section as the distance from the axis (Al; A2) of rotation (RI; R2) increases.
4. 4. Mechanism (1) according to one of the preceding daims 1 to 3, characterized in that the eccentric éléments (10; 20) are arranged such that when the mechanism (1) is in operation, the eccentric éléments (10; 20) intersect at a high position and at a low position.
5. 5. Mechanism (1) according to one of the preceding daims 1 to 4, characterized in that the eccentric éléments (10; 20) are arranged such that when the mechanism (1) is in operation, the eccentric éléments (10; 20) intersect at a left latéral position and at a right latéral position.
6. 6. Mechanism (1) according to one of the preceding daims 1 to 5, characterized in that a counterweight (68) is attached at the lower part of the pendulum (6) and amplifies the altemate pivoting (Bl; B2) thereof on one side then on the other, which amplifies the simultaneous cross-thrusts of the pendulum (6) against the axes (Al; A2) of the eccentric éléments (10; 20) and the transmission of torque to the synchronization System (8).
7. 7. Mechanism (1) according to one of the preceding daims 1 to 6, characterized in that it comprises a locking System (40) opérable between:

   - a configuration for locking the eccentric éléments (10; 20) in the high position, preventing them from describing the synchronized counterrotating rotational movement (RI; R2); and

   - a configuration for releasing the eccentric éléments (10 20), allowing them to describe the synchronized counter-rotating rotational movement (RI R2).
8. 8. Mechanism (1) according to claim 7, characterized in that the locking System (40) comprises a pivoting hook (41) mounted on the pendulum (6) and a hooking element (42) intégral to one of the eccentric éléments (10; 20).
9. 9. Mechanism (1) according to one of the preceding daims 1 to 8, characterized in that the synchronization System (8) comprises gearwheels (12, 13; 22, 23; 33, 34).
10. 10. Mechanism (1) according to one of the preceding daims 1 to 9, characterized in that the synchronization System (8) comprises:

    - a first support shaft (11) mounted pivotally on the pendulum (6), centered on the first axis (Al) and intégral to the first eccentric element (10),

    - a second support shaft (21) mounted pivotally on the pendulum (6), centered on the second axis (A2) and intégral to the second eccentric element (20),

    - a first central gearwheel (12) and a first intermediate gearwheel (13) intégral to the first support shaft (11), the first central gearwheel (12) having a diameter and a number of teeth double that of the first intermediate gearwheel (13),

    - a second central gearwheel (22) and a second intermediate gearwheel (23) intégral to the second support shaft (21), the second central gearwheel (22) meshing with the first central gearwheel (12), the second central gearwheel (22) having a diameter and number of teeth equal to that of the fîrst central gearwheel (12) and double that of the second intermediate gearwheel (23),

    - a fîrst latéral shaft (31) and a second latéral shaft (32) centered on the pendulum axis (AO),

    - a fîrst latéral gearwheel (33) intégral to the fîrst latéral shaft (31) and meshing with the fîrst intermediate gearwheel (13),

    - a second latéral gearwheel (34) intégral to the second latéral shaft (32) and meshing with the second intermediate gearwheel (23), where either the fîrst latéral shaft (31) or the second latéral shaft (32) is intended to be coupled to the energy recovery System (80).
11. 11. Mechanism (1) according to one of the daims 9 or 10, characterized in that during one 360° rotation (RI; R2) of the eccentric éléments (10; 20), between two oscillations of the pendulum (6), the gearwheels (12, 13, 22, 23 33, 34) receive the torque captured between the thrusts of the pendulum (6) and the rotation (RI; R2) of the eccentric éléments (10; 20), the torque propelling the eccentric éléments (10; 20) downwards accelerating them, then upwards in opposing the gravitational forces (PI; P2).
12. 12. Mechanism (1) according to one of the preceding daims 1 to 11, characterized in that the counter-rotating éléments (10; 20) hâve the same mass and the same dimensions.
13. 13. Machine, characterized in that it comprises:

    - at least one mechanism (1) according to one of the preceding daims 1 to 12, and

    - an energy recovery System (80) coupled to a synchronization System (8).
14. 14. Machine according to daim 13, characterized in that it comprises at least one pair of mechanisms (1) coupled together in parallel or sériés, wherein the pendulums (6) altemately pivot (Bl; B2) in a counter-rotating manner.
15. 15. Method for implementing a mechanism (1) according to one of the daims 1 to 12, characterized in that the method comprises:

    - a startup step, for imparting a synchronized counter-rotating rotational movement (RI; R2) to the eccentric éléments (10; 20);

    - an operating phase, during which:

    - the eccentric éléments (10; 20) are movable in synchronized counterrotating rotation (RI; R2), with cross-centrifugations,

    - the pendulum (6) pivots altemately (Bl; B2) on one side then the other, amplifying the rotational movement (RI; R2) of the eccentric éléments (10; 20), by means of simultaneous cross-thrusts of the pendulum (6) against the axes (Al; A2) of said eccentric éléments (10; 20), and by the transmission of torque to the synchronization System (8), and

    - an energy recovery System (80) coupled to the synchronization System (8) recovers energy generated by centrifugation within the mechanism (1);

    - if necessary during the operating phase, restarting steps consisting in imparting new momentum to the eccentric éléments (10; 20) within the counter-rotating rotational movement (RI; R2) thereof; and in that the energy recovered by the energy recovery System (80) is greater than the energy expended during the startup step and the restarting steps.