Hybrid motor

Abstract

A hybrid motor (1) comprising: an internal combustion engine (2), comprising a first element (20) adapted to carry out a rotation movement about a rotation axis (1a) in response to the activation of said internal combustion engine (2); an electric motor (3) comprising a second element (30) adapted to carry out a rotation movement about the rotation axis (1a) in response to the activation of the electric motor (3); a shaft (4) aligned with the rotation axis (1a) and constrained integrally with the second element (30) to a second end (41); a free wheel (5) aligned with the rotation axis (1a), defining an inner portion (50) constrained integrally to a first end (40) of the shaft (4) opposite the second end (41) and an outer portion (51) constrained integrally to the first element (20), the free wheel (5) being configured to cause rotation of the second element (30) when the first element (20) is rotating and not cause rotation of the first element (20) when the second element (30) is rotating; a connection element (6) constrained to the shaft (4) and configured to transmit the rotation to external mechanical members; the internal combustion engine (2) defines a first cavity (2a); the first element (20), the free wheel (5) and the first end (40) are housed in the first cavity (2a).

Description

[0001] IBE-2846

[0002] "HYBRID MOTOR"

[0003] The present invention concerns a hybrid motor of the type specified in the preamble of the first claim.

[0004] The subject of the present invention is a motor which is applied mainly, but not exclusively, in the field of mechanics, mechanical equipment and equipped vehicles. Hybrid motors are currently known composed of an internal combustion engine and an electric motor. These motors are typically used in motor vehicles due to the reduction in energy consumption and general improvement in performance. For example, in the case of motor vehicles, when the vehicle is at a standstill or moving at low speeds, the electric motor can drive the wheels, without using the internal combustion engine in this phase; the internal combustion engine is operated when the vehicle is in movement at higher speeds. This reduces fuel consumption and improves vehicle performance.

[0005] For this reason, the use of hybrid motors has been extended also to some classes of industrial machines, to hydraulic pumps or other machinery.

[0006] The internal combustion engine and the electric motor can be coupled according to different configurations: for example, the internal combustion engine and the electric motor can be connected in series or in parallel, or in mixed configurations. Furthermore, configurations are possible in which the electric motor can be recharged only by the internal combustion engine or configurations in which it is charged via connection to an external electrical supply, or configurations in which it is possible to carry out both recharging operations.

[0007] In detail, in a hybrid motor configuration, the internal combustion engine is coupled to the electric motor by means of a flexible coupling which reduces the irregularities in transmission, reducing the vibrations, and by means of a free wheel which allows independent operation of both motors.

[0008] The known art described has some important drawbacks.

[0009] In particular, it has the drawback of being bulky. Another drawback is connected with the maintenance operations which are complex.

[0010] In this situation the technical objective of the present invention is to provide a hybrid motor which is able to substantially overcome at least part of the drawbacks cited. In the context of said technical objective, an important object of the invention is to obtain a hybrid motor having a structure which is compact and not bulky.

[0011] Another important object of the invention is to provide a hybrid motor that allows maintenance operations to be carried out more easily.

[0012] The technical objective and the objects specified are achieved by a hybrid motor as claimed in the attached claim 1 .

[0013] Preferred technical solutions are highlighted in the dependent claims.

[0014] The characteristics and advantages of the invention are clarified below by the detailed disclosure of preferred embodiments of the invention, with reference to the attached drawings, in which:

[0015] Fig. 1 shows a first exploded view of a hybrid motor according to the invention;

[0016] Fig. 2 illustrates a second exploded view of a hybrid motor according to the invention; and

[0017] Fig. 3 shows a longitudinal section of a hybrid motor according to the invention.

[0018] In the present document, the measurements, values, forms, and geometric references (such as perpendicularity and parallelism), when associated with words such as "approximately" or other similar terms such as "almost" or "substantially", shall be understood as barring measurement errors or inaccuracies due to production and / or manufacturing errors and, above all, barring a slight deviation from the value, the measurement, the form, or geometric reference with which it is associated. For example, said terms, if associated with a value, indicate preferably a deviation not exceeding 10% of the value.

[0019] Furthermore, when used, terms such as "first", "second", "upper", "lower", "main" and "secondary" do not necessarily identify an order, a priority relation or relative position, but can be simply used to distinguish different components more clearly. Unless specified otherwise, as resulting from the following discussions, terms such as "processing", "IT", "determination", "calculation", or similar, are considered to refer to the action and / or processes of a computer or similar electronic calculation device that handles and / or transforms data represented as physical, such as electronic quantities of registries of an IT system and / or memories into other data similarly represented such as physical quantities within IT systems, registries or other devices for the storage, transmission or display of information.

[0020] Unless indicated otherwise, the measurements and data contained in the present description shall be considered as carried out in International Standard Atmosphere ICAO (ISO 2533:1975).

[0021] With reference to the Figures, the hybrid motor according to the invention is indicated overall by the number 1. It comprises an internal combustion engine 2. It can be, for example, a petrol or diesel combustion engine. The internal combustion engine 2 comprises a first element 20. It corresponds to the mechanical member downstream of the internal combustion engine 2. The first element 20 is adapted to carry out a rotation motion in response to the activation of the internal combustion engine 2.

[0022] The first element 20 can be a mechanical member with cylindrical symmetry. For example, it can be a flywheel or a shaft moved by the pistons of the internal combustion engine 2.

[0023] In particular, the first element 20 can carry out a rotation movement about a rotation axis 1a. The rotation axis 1 a is the axis on which the rotation of the first element 20 can be centred.

[0024] The hybrid motor 1 comprises an electric motor 3. For example, it can be a synchronous electric motor. The electric motor can be operatively connected to a battery. It performs the function of powering the electric motor 3. Furthermore, the battery can be rechargeable.

[0025] The electric motor 3 comprises a second element 30. It corresponds to the mechanical member downstream of the electric motor 3. The second element 30 is adapted to carry out a rotation movement in response to the activation of the electric motor 3.

[0026] The second element 30 can be a rotating member, the rotation of which is activated by the electric motor 3. For example, it can be a mechanical member having cylindrical symmetry. In detail, it can comprise a housing 31. It is a housing adapted to be connected to further mechanical members for transmission of the movement. Therefore, the second element 30 can be used to transmit the rotational movement to further mechanical members connectable to it.

[0027] The hybrid motor 1 comprises a shaft 4. It is a shaft aligned with the rotation axis 1 a. Therefore, it can rotate around its axis, coinciding with the rotation axis 1 a. The shaft 4 defines a first end 40. It allows other mechanical members to be constrained to the shaft 4. The shaft 4 defines a second end 41. It is an end opposite the first end 40. Also this end allows the shaft 4 to be constrained to other mechanical members.

[0028] The shaft 4 is constrained integrally to the second element 30. In detail, the shaft 4 is constrained to the second element 30 preferably at both ends. For example, at the second end 41 preferably by insertion and interlocking in the area of the housing 31 and at the opposite end preferably by threaded screws.

[0029] The hybrid motor 1 comprises a free wheel 5. It is aligned with the rotation axis 1 a. In particular, it can be centred on the rotation axis 1 a. In detail, it defines an inner portion 50. The inner portion 50 is a portion in which a rotating element can be housed. The inner portion 50 is aligned with the rotation axis 1 a. For example, the inner portion can have a cylindrical symmetry and a housing with axis coinciding with the rotation axis 1 a in which a mechanical member can be inserted.

[0030] The free wheel 5 defines an outer portion 51. It is a portion constrained to the inner portion 50. For example, the outer portion 51 can be a portion with cylindrical symmetry centred on the rotation axis 1 a and having dimensions greater than the inner portion 50 transversally to the rotation axis 1 a. The outer portion 51 is loosely constrained to the inner portion 50 so that the two portions rotate integrally only in a first direction of rotation about the rotation axis 1 a and when the inner portion 50 rotates in the second direction of rotation about the rotation axis 1 a, opposite the first direction of rotation, the outer portion 51 does not rotate integrally with the inner portion 50.

[0031] In detail, the rotational coupling of the inner portion 50 and the outer portion 51 can be provided by means of spheres or cylinders interposed between said portions and partly housed in housings in which absorbing elements can be present. In this way, when the inner portion 50 rotates around the rotation axis 1 a, the outer portion 51 does not rotate integrally with the inner portion 50 or remains at a standstill, since the spheres or cylinders (having axis perpendicular to the rotation axis 1 a) interposed between the two portions roll without transmitting the rotation. When the outer portion 51 rotates it can transmit the rotation movement via the interposed spheres or cylinders, causing also the inner portion 50 to rotate integrally with it. The inner portion 50 is integrally constrained to the first end 40 of the shaft 4. As already mentioned, the latter is opposite the second end 41 . In detail, the hybrid motor 1 can preferably comprise a key 7. It is a key that allows a shaft to be constrained to a mechanical member. In detail, it is configured to constrain the first end 40 to the inner portion 50. The key 7 can be inserted inside a housing 70. The housing 70 can be a housing obtained in the first end 40 and configured to insert the key 7 inside it. In this way the key 7 protrudes from the housing and blocks the relative movement of the inner portion 50 and the first end 40. The presence of the key 7 is advantageous since it allows the different mechanical members of the hybrid motor 1 to be reciprocally constrained, thereby facilitating maintenance operations.

[0032] In general, the second element 30 operated by the electric motor 3 can set in motion the shaft 4 and, consequently, the inner portion 50.

[0033] The outer portion 51 is constrained integrally to the first element 20. Therefore, the first element 20 operated by the internal combustion engine 2 can set in motion the outer portion 51.

[0034] Therefore, the free wheel 5 can be configured to cause rotation of the second element 30 when the first element 20 is rotating and not to cause rotation of the first element 20 when the second element 30 is rotating.

[0035] In this way it becomes advantageously possible to use the hybrid motor 1 so that, when the internal combustion engine 2 is operated and the first element 20 rotates around the rotation axis 1 a, also the second element 30 rotates. Furthermore, when the electric motor 3 is operated and the second element 30 rotates around the rotation axis 1a, the first element 20 is not caused to rotate and the electric motor 3 can continue to function independently of the internal combustion engine 2.

[0036] The hybrid motor 1 comprises a connection element 6. It can be an element configured to transmit the rotation to external mechanical members. Therefore, the connection element 6 allows the movement generated by the hybrid motor 1 to be used on further machines to carry out mechanical operations or to transform the mechanical energy taken downstream of the motor to convert it into another form of energy.

[0037] The connection element 6 is preferably constrained to the motor 3 and is not constrained to the shaft 4. In particular, it can be arranged downstream of the electric motor 3. In this way, it is possible to exploit the larger space available for the connections with the external mechanical members.

[0038] Advantageously, the internal combustion engine 2 defines a first cavity 2a. It can be part of the external structure of the internal combustion engine 2. In particular, the first element 20 can be provided on the bottom of the first cavity 2a. The first cavity 2a can be oriented so that the rotation axis 1 a passes through it. In particular, the first element 20, the free wheel 5 and the first end 40 are housed in the first cavity 2a. This arrangement of the components of the hybrid motor 1 has the advantage of making the structure of the hybrid motor 1 more compact. In this way, it becomes more flexible and can be used in more confined spaces.

[0039] The hybrid motor 1 can comprise a closing element 10. It can be a panel or an element extending mainly along a surface. For example, the closing element 10 can be a curved surface. The closing element 10 can be configured to be constrained to the first cavity 2a at the outer edge of the first cavity 2a. In this way, the first cavity 2a is at least partly separated from the outside and the movable components cannot be directly accessed.

[0040] In particular, the closing element 10 can comprise a first opening 10a. It can be an opening aligned with the rotation axis 1 a. The first opening 10a allows at least the shaft 4 to be introduced inside it.

[0041] An outer portion of the electric motor 3 arranged near the housing 31 can be constrained partly to the first opening 10a. This advantageously provides a stable configuration. In fact, the electric motor 3 can be arranged near the internal combustion engine 2.

[0042] In the hybrid motor 1 , the connection element 6, the electric motor 3, the free wheel 5 and the first element 20 are preferably arranged sequentially along the rotation axis 1 a and along the shaft 4. The connection element 6 and the electric motor 3 are arranged on the outside of the first cavity 2a, the other components are contained inside the first cavity 2a. This sequence advantageously makes the hybrid motor 1 more compact.

[0043] The hybrid motor 1 can preferably comprise an absorbing element 8. It can be an element made of elastomeric material. Advantageously, the absorbing element 8 can be configured to absorb the vibrations transversally to the rotation axis 1a. Furthermore, the absorbing element 8 can absorb the vibrations associated with transmission of the rotation from the first element 20 to the second element 30.

[0044] The absorbing element 8 can be in contact with the external portion 51 . In this way, the vibrations associated with rotation of the first element 20 and consequently of the external portion 51 are absorbed by the absorber 8. In this regard, the absorbing element 8 can have a structure mainly extending radially to the rotation axis 1 a. For example, it can comprise protruding elements that can be arranged radially with respect to the rotation axis. For example, the absorbing element 8 can have a form analogous to that of a gear wheel with convex toothing and a through hole centred on the rotation axis 1 a.

[0045] The absorbing element 8 can be arranged in the first cavity 2a.

[0046] In said regard, the hybrid motor 1 can preferably comprise a structure 9. It can be a containment structure. In detail, the structure 9 can be adapted to contain the free wheel 5 and the absorbing element 8. Therefore, the structure 9 allows stabilization on the rotation axis of the shaft 4, the free wheel 5 and the absorbing element 8 in contact with the structure 9 and consequently with the free wheel 5. For example, the structure 9 can be a flange defining a second through cavity 9a. It is therefore a cavity inside the flange which houses the free wheel 5 and preferably constrains the same by means of a key or tongue. Furthermore, inside the second through cavity 9a it is possible to house the shaft 4 at the first end 40 and the absorbing element 8.

[0047] The structure 9 can be contained in the first cavity 2a.

[0048] The hybrid motor 1 can preferably comprise a computer. It can be an electronic computer. In particular, it is operatively connected to the internal combustion engine 2. Furthermore, it is operatively connected to the electric motor 3.

[0049] The computer is configured to activate at least one of the internal combustion engine 2 and the electric motor 3. For example, it can operate only the internal combustion engine 2 or can operate only the electric motor 3. Furthermore, the computer is configured to disable at least one of the internal combustion engine 2 and the electric motor 3. Therefore, it can selectively disable one of the two motors or both.

[0050] The computer is configured to regulate the rotation speed and acceleration about the rotation axis 1 a of at least one of the first element 20 and the second element 30. Therefore, the computer can intervene directly on the operating speed of the two motors, in addition to regulating the switch-on and switch-off thereof. In said regard, the hybrid motor 1 defines a number of operating modes. In detail, it can preferably define a first operating mode. In this mode only the electric motor 3 is active and the second element 30 rotates about the rotation axis 1 a. Therefore, in this operating mode only the electric motor 3 is actuated. This mode is advantageous in particular in the starting phases of the hybrid motor 1 .

[0051] The hybrid motor 1 can preferably define a second operating mode. In this mode only the internal combustion engine 2 is active and the first element 20 in rotation causes rotation of the second element 30 about the rotation axis 1a. Therefore, in this mode only the internal combustion engine 2 is actuated. This mode is advantageous when a higher power is required.

[0052] The hybrid motor 1 can preferably define a third operating mode. In this mode the internal combustion engine 2 and the electric motor 3 are active, the first element 20 rotates about the rotation axis 1 a and the second element 30 rotates about the rotation axis 1a. Therefore, in this mode both the motors are actuated. Furthermore, this mode is implemented when the first element 20 and the second element 30 rotate with the same number of revolutions per minute. This hybrid mode is advantageous since it allows reciprocal compensation of the performances of the two motors.

[0053] The hybrid motor 1 can preferably define a fourth operating mode. In this mode the first element 20 rotates about the rotation axis 1 a in the absence of acceleration of the first element 20, the electric motor 3 absorbs part of the rotation energy of the shaft 4. Therefore, the fourth mode, or regeneration mode, has the advantage of transforming part of the rotation energy of the shaft 4. This energy can be converted into electric energy by the electric motor 3 to recharge the battery.

[0054] To switch from the first mode to the second mode, the internal combustion engine 2 is actuated. Subsequently the first element 20 and the second element 30 rotate with the same number of revolutions per minute and the electric motor 3 is disabled. To switch from the first mode to the third mode, the internal combustion engine 2 is actuated and the first element 20 and the second element 30 rotate with the same number of revolutions per minute.

[0055] To switch from the first mode to the fourth mode the internal combustion engine 2 is actuated, the first element 20 and the second element 30 rotate with the same number of revolutions per minute. Therefore, the system switches to the regeneration mode.

[0056] To switch from the second mode to the first mode the first element 20 and the second element 30 rotate with the same number of revolutions per minute. Subsequently the internal combustion engine 2 is disabled.

[0057] To switch from the second mode to the third mode, the first element 20 and the second element 30 are caused to rotate with the same number of revolutions per minute.

[0058] To switch from the second mode to the fourth mode, the first element 20 and the second element 30 rotate with the same number of revolutions per minute. Therefore, the system switches to the regeneration mode.

[0059] To switch from the third mode to the first mode, the internal combustion engine 2 is disabled.

[0060] To switch from the third mode to the second mode, the electric motor 3 is disabled. To switch from the third mode to the fourth mode, the second element 30 does not undergo rotation acceleration. In this mode the acceleration of the first element 20 allows energy to be absorbed at the level of the electric motor 3.

[0061] To switch from the fourth mode to the first mode, the electric motor 3 does not absorb part of the rotation energy of the shaft 4. The computer can disable the energy absorption to disable the regeneration. Subsequently the internal combustion engine 2 is disabled and the acceleration of the second element 30 can be increased.

[0062] To switch from the fourth mode to the second mode, the electric motor 3 does not absorb part of the rotation energy of the shaft 4. The computer can disable the energy absorption to disable the regeneration.

[0063] To switch from the fourth mode to the third mode, the electric motor 3 does not absorb part of the rotation energy of the shaft 4. The computer disables the energy absorption to disable the regeneration. Furthermore, the first element 20 and the second element 30 rotate with the same number of revolutions per minute.

[0064] These operations carried out in the various transitions from one mode to another have the advantage of reducing deterioration of the transmission. In particular, in this way deterioration of the free wheel 5 is advantageously reduced.

[0065] The hybrid motor 1 can be preferably of fluid-dynamic type. In detail, the hybrid motor 1 can comprise a pump. For example, it can be a hydraulic pump. In detail, it can be constrained to the connection element 6 and take the movement from the drive shaft 4. The latter can be configured to pressurize a fluid. Therefore, the connection element 6 can transform the energy associated with the motion of the shaft 4 into energy to drive the pump. The pump therefore has the advantage of being driven by the hybrid motor 1 , thereby reducing energy consumption, due both to the presence of the electric motor 3 and to the possibility of using the hybrid motor 1 in the various operating modes described, which allow further optimization of energy consumption.

[0066] The invention concerns an agricultural machine. For example, it can be a tractor or a combine harvester. In general, the agricultural machine advantageously comprises the hybrid motor 1. In this way the consumption of the agricultural machine can be reduced, as described previously.

[0067] Furthermore, the invention concerns an aerial platform. For example, it can be a small vehicle on which the platform is mounted and which can be raised by a lifting mechanism. The aerial platform advantageously comprises the hybrid motor 1 . The advantage of the hybrid motor 1 is given by the fact that the aerial platform can be used in closed environments by operating only the electric motor 3. This avoids the emissions of gas and particulate of the internal combustion engine 2 when using the aerial platform, thus safeguarding the air quality in working environments. The internal combustion engine 2 can be used to enhance the performance of the hybrid motor 1 when the aerial platform is used in outdoor environments.

[0068] In structural terms, operation of the hybrid motor 1 previously described is as follows.

[0069] At start-up, the computer can actuate only one of the two motors or both of them, depending on the selected mode. When the internal combustion engine 2 is actuated, the first element 20 begins to rotate until it reaches the number of revolutions per minute set by the computer. The rotation of the first element 20 is transmitted to the outer portion 51. The rotation of the outer portion 51 causes rotation of the inner portion 50 by means of the movement of the spheres or cylinders. The rotation of the inner portion 50 causes rotation of the shaft 4. The latter transmits the rotational movement also to the second element 30. The actuation of the internal combustion engine 2 also moves the movable parts of the electric motor 3. In this way the hybrid motor 1 operates in the second mode. Alternatively, the computer can actuate the electric motor 3. Therefore, the second element 30 is moved, rotates about the rotation axis 1 a, causing the shaft 4 to rotate by dragging. It rotates the inner portion 50. The spheres / cylinders do not transmit the movement to the outer portion 51 which stays still. The spheres or the cylinders rotate between the inner portion 50 and the outer portion 51 without dragging. In this way the hybrid motor 1 functions in the first operating mode.

[0070] The computer can actuate both the motors. In this way, the hybrid motor 1 functions in the third mode. For example, the computer can actuate the electric motor 3 and subsequently can actuate the internal combustion engine 2. When the latter is actuated, the inner portion 50 is already rotating and the outer portion 51 does not rotate as long as the number of revolutions per minute of the first element 20 is lower than the number of revolutions per minute of the shaft 4. In fact, the spheres or cylinders that rotate in the opposite direction to the rotation direction of the two portions of the free wheel 5 cease to rotate when the outer portion 51 rotates at a number of revolutions per minute equal to that of the inner portion 50. Consequently, the spheres (or cylinders) transmit the rotation. Consequently, the first element 20 and the second element 30 rotate with the same number of revolutions per minute. The hybrid motor 1 can function in regeneration mode as described previously. Furthermore, it can switch from one operating mode to another by carrying out the sequence of operations described previously and set via the computer.

[0071] The hybrid motor 1 according to the invention offers important advantages.

[0072] In fact, it allows overall dimensions to be reduced. The free wheel 5 and the mechanical members constrained to it are enclosed within the first cavity 2a. The hybrid motor 1 can therefore be used also on vehicles or equipment with reduced dimensions.

[0073] In this regard, the hybrid motor 1 can be used effectively on a pump, due to the reduced overall dimensions. This also facilitates assembly of the hybrid motor on tools and machinery usually driven by internal combustion engines.

[0074] Another advantage of the hybrid motor 1 is the ease with which maintenance operations can be carried out. In fact, the components of the hybrid motor 1 are components already known and commonly used. Therefore, no particular precautions are required. Furthermore, the maintenance operations can be carried out by removing the cover of the cavity containing the free wheel and disassembling the single components in sequence.

[0075] A further advantage is the use of the hybrid motor 1 on agricultural machines used in sheltered or closed environments like glasshouses. In this way, in fact, they can be used without necessarily having to switch on the internal combustion engine, which would cause the emission of polluting substances in a closed environment.

[0076] Therefore, the use of a hybrid motor on this type of equipment allows work to be carried out also in closed environments using only the electric motor.

[0077] An analogous advantage is obtained by using the hybrid motor 1 on an aerial platform. In fact, the latter is used both in closed environments, such as inside work premises, and outdoors. The hybrid motor 1 can therefore be used on aerial platforms due both to its compactness and the possibility of using only the electric motor to avoid the emission of polluting substances in closed working environments. The invention is subject to variations falling within the scope of the inventive concept defined by the claims. In said context all the details can be replaced by equivalent elements and any materials, forms and dimensions can be used.

Claims

IBE-2846C LA I M S1. Hybrid motor (1 ) comprising:- an internal combustion engine (2) comprising a first element (20) suitable to carry out a motion of rotation around an axis of rotation (1 a) in response to the activation of said internal combustion engine (2);- an electric motor (3) comprising a second element (30) suitable to carry out a motion of rotation around an axis of rotation (1 a) in response to the activation of said electric motor (3);- a shaft (4) aligned with said axis of rotation (1 a) and constrained integrally with said second element (30) at a second end (41 );- a freewheel (5) aligned with said axis of rotation (1a), defining an inner portion (50) constrained integrally with a first end (40) of said shaft (4) opposed to said second end (41 ) and an external portion (51 ) constrained integrally with said first element (20), said freewheel (5) being configured to cause rotation of said second element (30) when said first element (20) is rotating, and not to cause rotation of said first element (20) when said second element (30) is rotating;- a connection element (6) constrained with said shaft (4) and configured to transmit said rotation to external mechanical members; and characterised by the fact that- said internal combustion engine (2) defines a first cavity (2a);- said first element (20), said freewheel (5) and said first end (40) are arranged in said first cavity (2a).

2. Hybrid motor (1 ) according to Claim 1 , wherein along said rotation axis (1 a) and along said shaft (4), said connection element (6), said electric motor (3), said freewheel (5) and said first element (20) are sequentially arranged.

3. Hybrid motor (1 ) according to any of the preceding claims, comprising a key (7) configured to constrain said first end (40) to said internal portion (50).

4. Hybrid motor (1 ) according to any of the preceding claims, comprising an absorbing element (8) configured to absorb vibrations transversally to said rotation axis (1 a) and the vibrations associated with the transmission of said rotation from said first element (20) to said second element (30), said absorbing element (8) being in contact with said external portion (51 ) and arranged in said first cavity (2a).

5. Hybrid motor (1 ) according to the preceding claim, comprising a containment structure (9) suitable to contain said freewheel (5) and said absorbing element (8), being structure (9) being contained in said first cavity (2a).

6. Hybrid motor (1 ) according to any of the preceding claims, comprising an electronic computer, operatively connected with said internal combustion engine (2) and said electric motor (3) configured to activate at least one of said internal combustion engine (2) and said electric motor (3), in order to disable at least one of said internal combustion engine (2) and said electric motor (3), to adjust the speed and acceleration of rotation around said rotation axis (1 a) of at least one element between said first element (20) and said second element (30).

7. Hybrid motor (1 ) according to any of the preceding claims, defining:- a first operation mode, in which only said electric motor (3) is operative and said second element (30) is rotating around said rotation axis (1a);- a second operative mode wherein only said internal combustion engine (2) is operative and said first element (20) in rotation puts said second element (30) to rotate around said axis of rotation (1 a);- a third operative mode wherein said internal combustion engine (2) and said electric motor (3) are active, said first element (20) is rotating around said rotation axis (1 a) and said second element (30) is rotating around said rotation axis (1a);- a fourth operative mode wherein, when said first element (20) is rotating around said rotation axis (1a) in absence of said acceleration of said first element (20), said electric motor (3) absorbs a portion of the energy of said rotation of said shaft (4).

8. Hybrid motor (1 ) according to the preceding claim, wherein:- to pass from said first mode to said second mode, said internal combustion engine (2) is being actuated, then said first element (20) and said second element (30) are rotating with the same amount of revolutions per minute and said electric motor (3) is disabled;- to pass from said first mode to said third mode, said internal combustion engine (2) is being actuated, and said first element (20) and said second element (30) are rotating with the same amount of revolutions per minute;- to pass from said first mode to said fourth mode, said internal combustion engine (2) is actuated, said first element (20) and said second element (30) arerotated with the same amount of revolutions per minute;- to pass from said second mode to said first mode, said first element (20) and said second element (30) are rotating with the same amounts of revolutions per minute and then said internal combustion engine (2) is disabled;- to pass from said second mode to said third mode, said first element (20) and said second element (30) are rotating with the same amount of revolutions per minute;- to pass from said second mode to said fourth mode, said first element (20) and said second element (30) are rotating with the same amount of revolutions per minute;- to pass from said third mode to said first mode, said internal combustion engine (2) is disabled;- to pass from said third mode to said second mode, said electric motor (3) is disabled;- to pass from said third mode to said fourth mode, said second element (30) is not subjected to acceleration of said rotation;- to pass from said fourth mode to said first mode, said electric motor (3) does not absorb part of the energy of rotation of shaft (4), and then said internal combustion engine (2) is disabled and the acceleration of said second element (30) may be increased;- to pass from said fourth mode to said second mode, said electric motor (3) does not absorb part of the energy of rotation of shaft (4),- to pass from said fourth mode to said third mode, said electric motor (3) does not absorb part of the energy of rotation of shaft (4), and said first element (20) and said second element (30) are rotating with the same number of revolutions per minute.

9. Hybrid motor (1 ) according to any of the preceding claims, wherein said hybrid motor (1 ) is of the fluid-dynamic type and has a pump constrained with said connection element (6), said element (6) being configured to put a fluid under pressure.

10. Agricultural machine comprising a hybrid motor (1 ) according to any preceding claim.

11. Aerial platform comprising the hybrid motor (1 ) according to any preceding claim.

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