Abstract: The invention relates to an electric motor/gear mechanism unit including a housing, an iron-free rotor winding rotatably arranged in the interior of the housing, a collector connected to the rotor winding, a rotor shaft extending through the collector, and a gear mechanism which is connected to the rotor shaft and which has an output shaft. The present invention is so conceived that the gear mechanism is produced from a non-magnetic material and arranged in the interior of the rotor winding.

Abstract: A linear actuator is provided that includes a housing having an input member supported for rotation therein. An output member travels linearly along the input member when the input member is rotated relative to the output member. A guide rail extends along an inner surface of the housing. The output member engages the guide rail to prevent rotation of the output member.

Abstract: The invention provides a Rim Electric Motor/Generator (RMG), utilizing the Solenoid principle which greatly increases the efficiency of an electric motor. The ring-shaped design allows the magnetic coils to wrap 360° around the rotor (FIG. 4), providing maximum possible ratio of transforming electric power to mechanical motion. Another benefit of the invention is low installation space requirements allowing it to be easily adapted in current designs (FIG. 7), without the need for major alterations. The scope of the invention includes the use of solenoid principle in said rim (ring) shape configuration of solenoids to generate circular motion.

Abstract: A bearing is positioned relative to a rotatable shaft by inserting the bearing over the rotatable shaft until the bearing contacts a flange of the rotatable shaft, which is cold-forged on the rotatable shaft. The bearing is fixed to the rotatable shaft such that a swaged portion is formed in an outer peripheral portion of the rotatable shaft on an opposite axial side of the bearing, which is axially opposite from the flange, by swaging a corresponding part of the outer peripheral portion of the rotatable shaft such that the corresponding part of the outer peripheral portion of the rotatable shaft is radially outwardly bulged to form the swaged portion, and the swaged portion is axially pressed against the bearing to axially securely clamp the bearing between the swaged portion and the flange.

Abstract: An actuator system for extending and flexing a joint, including a multi-motor assembly for providing a rotational output, a rotary-to-linear mechanism for converting the rotational output from the multi-motor assembly into an extension and flexion of the joint, and a controller for operating the actuator system in several operational modes. The multi-motor assembly preferably combines power from two different sources, such that the multi-motor assembly can supply larger forces at slower speeds (“Low Gear”) and smaller forces at higher speeds (“High Gear”). The actuator has been specifically designed for extending and flexing a joint (such as an ankle, a knee, an elbow, or a shoulder) of a human. The actuator system may, however, be used to move any suitable object through any suitable movement (linear, rotational, or otherwise).

Abstract: A generator arrangement is provided in which the functionality of two typically separate electrical power generators are combined together into a single generator that forms part of a three-in-one combined multi-generator which has a dual drive path with a shear section that immunizes one of the generators (e.g., the permanent magnet generator) within the single combined multi-generator from a failure of another generator (e.g., the main generator) within the single combined multi-generator.

Abstract: A rotor gear includes a rotor gear body having involute teeth that each have an involute surface that extends between a tooth tip and a tooth base. The involute surface includes at least reference points A-D, with reference point A near the base, reference point D near the tip, reference point B between reference points A and D, and reference point C between reference points B and D. The reference points A-D have associated respective roll angles, ?A-D, between a corresponding first line that is perpendicular to the involute surface at the given reference point A-D and a second line that is tangent at a reference point that lies on a terminal end of the involute surface at the tooth base to a reference base circle having a center origin at the center axis.

Abstract: An actuator providing improved torque, control, and reduced motor and actuator size is provided. An actuator according to one example may include a base plate, a stationary ring gear on the base plate, the ring gear having an arc of substantially less than a conventional full circle ring gear, a pivot assembly and a drive shaft. In one example, the ring gear is approximately half a circle. The pivot assembly may be pivotally mounted on the base plate. The pivot assembly may also have a control board, a stepper motor and a drive gear coupled to an output shaft of the stepper motor, the drive gear mounted on the pivot assembly such that the drive gear engages the stationary ring gear. In one example, the stepper motor is coupled to the drive gear via a worm gear, spur gear, and a shaft. In another example, the drive gear is mounted directly on the output shaft of the stepper motor. The actuator also includes a drive shaft having an axis parallel to a pivot of the pivot assembly.

Abstract: An electronic drive unit includes a case housing that extends along a primary axis. A sleeve shaft and an electric motor are disposed in the hollow interior of the case housing. The electric motor is operatively connected to the sleeve shaft to rotate the sleeve shaft about the primary axis. At least one gear set is disposed in operative engagement with the sleeve shaft and is configured for rotation about the primary axis. A pair of output shafts each extends along the primary axis within the case housing. The output shafts are rotatably connected to the gear set and are configured for rotation about the primary axis. The gear set is configured to translate rotation of the sleeve shaft into rotation of the output shafts about the primary axis at a rotational velocity that is less than the rotational velocity of the sleeve shaft.

Abstract: An electrical machine comprises: a first rotor, rotatable about a first axis, and having a first arrangement of magnets on a first surface thereof; a second rotor, held with a first surface thereof adjacent the first surface of the first rotor and such that it cannot rotate about the first axis, but is rotatable about a second axis, and having a second arrangement of magnets on the first surface thereof; wherein the first and second arrangements of magnets are such that rotation of the first rotor about the first axis causes rotation of the second rotor about the second axis. The first rotor is in the form of an at least partial hollow torus, with the first surface thereof being an internal surface. The second rotor is in the form of a cylinder, located within the hollow torus, with the first surface thereof being an external surface, such that the second axis is perpendicular to the first axis.

Abstract: An energy converter includes a magnetism generation mechanism unit that generates a magnetic field when connected to an AC electrical power source, and a rotating mechanism unit having a single turn coil array member in which a plurality of single turn coils is disposed at a predetermined interval and a soft magnetic metal plate disposed on a side of the single turn coil array member opposite to the magnetism generation mechanism unit. The rotating mechanism unit is structured such that the single turn coil array member faces the magnetism generation mechanism unit across a predetermined magnetic gap and rotary driven by the magnetic field. Here, a drive signal period of the electrical power source is a period that maximizes an eddy current generated in the soft magnetic metal plate.

Abstract: A servo motor is equipped with a rotary shaft, a rotor rotated integrally with the rotary shaft, a stator that is separated a predetermined distance from and disposed in confronting relation to the rotor, and an angle detecting device that detects an angle of rotation of the rotary shaft. On a counter-load side end, which is opposite to a load side end of the rotary shaft, an operating member is provided, which enables the rotary shaft to be rotated manually from an exterior location.

Abstract: [Object] An object of the present invention is to provide a substrate support structure which can prevent a crush rib from damaging components other than a substrate and brings excellent workability. [Means to Solve] In a substrate support structure, a box-shaped resinous case 2 provided with a holding space section 23 is separated into a first case 21 and a second case 22, and a substrate 3 is housed in the holding space section 23. A first crush rib 41 and a second crush rib 42 are provided in the second case 22, and press and fix the substrate 3 to first case 21 by reaction force that is generated by being pressed against the substrate 3 and crushed when the both cases 21, 22 are joined together. A first guide 51 is provided in the first case 21, and guides the first crush rib 41 to the substrate 3 mounted in the first case 21 when the both cases 21, 22 are joined together.

Abstract: The invention relates to an electric drive, particularly a windshield wiper drive for vehicles, comprising an electric motor (10) in a crucible-shaped, preferably metal, motor housing (14), a gearbox housing (16) that is attached to the motor housing (14), and an arrangement for the interference suppression of the motor (10). According to the invention, at least one choke coil (46, 48) for the interference suppression of the motor (10) is disposed in the transition region from the motor housing (14) to the gearbox housing (16), wherein in this transition region means (36, 56) are provided in order to shield the filtered coil end (47, 49) projecting into the gearbox housing (16) from the interfering radiation produced by the motor (10).

Abstract: Transmission drive unit (10), in particular for adjusting movable parts in the motor vehicle, having a drive motor (12) and a transmission (14) which is driven thereby, wherein the transmission (14) has an output element (70) and a self-locking device (60) with a locking element (63, 55), and the locking element locks the transmission (12) with respect to torques which are applied to the transmission (12) by the output element (70), wherein the transmission (12) with its transmission toothing (47) and a motor shaft bearing (32, 28) is designed to have optimized efficiency and minimal friction, and the drive motor (12) has, as an exciter magnet, a sleeve-shaped annular magnet (18) which is arranged in a pole pot (16) which forms a magnetic return.

Abstract: A housing is provided with a partition wall portion that partitions an inner space of the housing into an electric motor accommodating space and a speed reducer accommodating space. The partition wall portion fixes a gear that constitutes a speed reducer. In addition, the partition wall portion has a housing boss portion, and an inner stator is fixed to the housing boss portion. Thus, heat generated by the inner stator is dissipated to the outside through the housing boss portion and the partition wall portion.

Abstract: An electric motor contains a mechanical mechanism that causes a rotor to move in an epitrochoidal path. Disposed around the epitrochoidal path are forcers that may impel or force the rotor to rotate. The mechanical mechanism that creates the epitrochoidal path may consist of an output shaft with an eccentric lobe, where the rotor revolves around the eccentric lobe. A fixed mounted sun gear may engage a ring gear mounted to the rotor to cause the epitrochoidal motion. Some embodiments may have two or more rotors, and may include controllers with feedback sensors to operate the electric motor at a specific speed or to control the speed as defined in a speed profile.

Abstract: An electric motor contains a mechanical mechanism that causes a rotor to move in an epitrochoidal path. Disposed around the epitrochoidal path are forcers that may impel or force the rotor to rotate. The mechanical mechanism that creates the epitrochoidal path may consist of an output shaft with an eccentric lobe, where the rotor revolves around the eccentric lobe. A fixed mounted sun gear may engage a ring gear mounted to the rotor to cause the epitrochoidal motion. Some embodiments may have two or more rotors, and may include controllers with feedback sensors to operate the electric motor at a specific speed or to control the speed as defined in a speed profile.

Abstract: The invention relates to a motor gearbox unit (1), particularly for a windshield wiper system in a motor vehicle, comprising an electric motor (12) and a gearbox (14) driven by the electric motor (12), and a housing (2). According to the invention, the housing 2) is designed as a shell housing receiving both the electric motor (12) and the gearbox (14) and comprises a first and a second shell part (3, 4).

Abstract: Invention rotates the shaft of stored and/or stand-by rotating equipment to intervene in the false brinelling and/or lubricant separation process, thus eliminating and/or minimizing the subsequent premature bearing failure when the equipment is placed in service.

Abstract: A system and method for moving an object is disclosed. In one aspect, there is a device for moving an object. The device comprises a penetrating structure comprising an externally threaded surface. The device further comprises a receiving structure comprising an internally threaded cylinder surrounding the penetrating structure. The device further comprises a source of magnetic flux configured to magnetize the externally threaded surface with a first polarity and to magnetize the internally threaded cylinder with a second polarity that is different from the first polarity. The device further comprises a conductor positioned between the penetrating structure and the receiving structure configured to conduct an electric current. The device further comprises a sensor configured to determine the radial position of the penetrating structure with respect to the receiving structure.

Abstract: A coreless motor able to be downsized and easy to be assembled and to ensure the concentricity between a motor shaft, a magnet, and an outer cylinder. The coreless motor includes an outer cylinder gear unit having an output shaft and a speed-reducer mechanism incorporated into a field assembly having a magnet fitted on an inner yoke and an outer cylinder fitted on an outer periphery of the magnet, a motor shaft unit having an inner lid rotatably supporting a motor shaft via ball bearings, a rotor unit having a circular plate attached with a commutator electrically connected to a coil, an outer lid unit having an outer lid mounted with brushes. The inner lid is incorporated in the inner yoke, the coil is incorporated in between the outer cylinder and the magnet, and the outer lid unit is attached to the rotor unit and the outer cylinder.

Abstract: An electric motor contains a mechanical mechanism that causes a rotor to move in an epitrochoidal path. Disposed around the epitrochoidal path are stators that may impel or force the rotor to rotate. The mechanical mechanism that creates the epitrochoidal path may consist of an output shaft with an eccentric lobe, where the rotor revolves around the eccentric lobe. A fixed mounted sun gear may engage a ring gear mounted to the rotor to cause the epitrochoidal motion. Some embodiments may have two or more rotors, and may include controllers with feedback sensors to operate the electric motor at a specific speed or to control the speed as defined in a speed profile.

Abstract: A rotary actuator including: a housing that rotatably supports thereinside a rotor shaft of an electric motor; an eccentric shaft portion that is provided on a protruding end portion of the rotor shaft that protrudes outside the housing; an external gear that is rotatably supported on the eccentric shaft portion via a bearing; an internal gear that is fixed to an outer surface of the housing and meshes with the external gear; and a transmitting portion that is provided on the external gear, and transmits rotation force to an external output shaft.

Abstract: Disclosed is a motor in which a commutator (10) is provided with connecting wires which short-circuit equipotential segments; brushes (21) are constituted by a low-speed brush (21a), a high-speed brush (21b), and a common brush (21c) used in common by the low-speed and high-speed brushes, and are juxtaposed along the circumferential direction. The circumferential brush width (W2) of the high-speed brush is set to be smaller than the circumferential brush width (W1) of the low-speed brush. The high-speed brush and the low-speed brush are formed so that simultaneous sliding contact with equipotential segments (15) can be avoided. Additionally, armature cores (8) are provided such that a plurality of teeth (12) is point-symmetrical about a rotary shaft (3) at equal intervals in the circumferential direction, and the teeth and slots (13) are formed so as to exist alternately at intervals of 90 degrees in the circumferential direction.

Abstract: The present disclosure provides a motor overload protection device that includes a driving gear, a loading wheel, and at least one protecting gear unit rotatably fixed to the loading wheel. The loading wheel defines a central through hole for rotatably receiving a rotor of a motor. The driving gear is fixed on the rotor. The at least one protecting gear unit is rotated by the rotor. A resistance between the at least one protecting gear unit and the loading wheel is predetermined. When the load on the loading wheel is less than or equal to the maximum load of the motor, the resistance keeps the loading wheel and the at least one protecting gear unit together rotating around the rotor of the motor. When the load is greater than the maximum load of the motor, the at least one protecting gear unit rotates relative to the loading wheel.

Abstract: A directed flux motor described utilizes the directed magnetic flux of at least one magnet through ferrous material to drive different planetary gear sets to achieve capabilities in six actuated shafts that are grouped three to a side of the motor. The flux motor also utilizes an interwoven magnet configuration which reduces the overall size of the motor. The motor allows for simple changes to modify the torque to speed ratio of the gearing contained within the motor as well as simple configurations for any number of output shafts up to six. The changes allow for improved manufacturability and reliability within the design.

Abstract: The starter has a system of pushing the pinion gear in the direction of the anti-motor side by using the attracting power of the electromagnetic switch via the shift lever. The switch coil of the electromagnetic switch is constituted of one coil that is electrically separated from the motor circuit. The mass of pinion gear is set to 100 g or less, the switch extrusion power stored in the drive spring is set to 70 N (Newton) or less, and the operation current of the electromagnetic switch is set to 12 amperes or less. With this starter, since the switch coil and the motor circuit can be electrically separated, the terminal for connection for connecting the conventional attracting coil and conventional “M terminal bolt” can be abolished. Further, by setting the operation current of the electromagnetic switch 10 to 12 amperes or less, it is possible to control the operation current directly by the ECU.

Abstract: A starting device having a drive-end bracket, in which a bearing is fastened, having a drive shaft, the bearing in the bearing bracket at least indirectly supporting the drive shaft, having a starter pinion which is fastened on the drive shaft so that a torque is able to be transferred from the drive shaft to the starter pinion, the starter pinion having an end face and a retaining ring being situated on the drive shaft in a fixed manner, at the end face, the starter pinion having a recess in which a retaining element is situated, which prevents the retaining ring from spreading inadmissibly.

Abstract: The actuator system has a external rotor motor having: (i) an internal armature configured as a stator having a set of coils wrapped around a set of arms, and (ii) an external permanent magnet rotor having a set of poles configured to rotate less than 90 degrees around the stator. The actuator system has a drive shaft configured to be rotated by the external rotor motor. The actuator system has a drive train connecting the external permanent magnet rotor to the drive shaft, and configured to provide gear ratio to the drive shaft.

Abstract: In certain exemplary embodiments, an apparatus for rotating one or more vehicle lamps can include a case body, a motor, a printed circuit board, and/or a gear reducing mechanism. The motor can be mounted on the outside of the case body and/or can include a case shell and/or an end cover. The revolving shaft of the motor can be supported on the case shell and/or the end cover of the motor by a first bearing and/or a second bearing respectively. The end of the revolving shaft of the motor can enter into the case body and/or be fixed with a driving gear which can engage with the gear reducing mechanism. The output shaft of the gear reducing mechanism can actuate the vehicle lamp, so as to change the direction of irradiation of the vehicle lamp.

Abstract: A light-emitting device driven by an inertial power includes an inertial module, a magnetic element, a magnetic-conductive element, at least one wire, and a light-emitting module. Under an inertial effect, the inertial module drives the magnetic element to rotate, such that a magnetic field generated by the magnetic-conductive element changes due to the rotation of the magnetic element. Moreover, the wire wound around the magnetic-conductive element generates a drive current in response to the changing of the magnetic field, so as to drive the light-emitting module to emit a light. As such, the magnetic field is changed under an inertial power, so as to generate a drive current for driving the light-emitting module, thereby achieving, a renewable energy source, environmental protection, and power-saving purposes.

Abstract: A telescopic actuator includes a motor having a rotation shaft, a reduction gear which decelerates an output rotation of the rotation shaft, a feed screw mechanism having a male screw member and a female screw member which are relatively rotated by an output rotation of the reduction gear, a first housing accommodating the motor, and a second housing accommodating the reduction gear and the feed screw mechanism. The first housing and the second housing are detachably attached.

Abstract: The invention describes a starter wherein the second front bearing is inserted axially between the armature windings and the speed reducer. This configuration helps solve the problem that the operating forces of known starter armature shafts are too great for the armature shaft guide ring to withstand long term intensive stresses. The structure includes a supporting section of the armature shaft received in the front bearing, the supporting section being of an outside diameter greater than or equal to the other sections of the armature shaft; the front bearing forms a sealed baffle between the armature windings and the planetary gear speed reducer; the electric motor is housed in a cylindrical frame, coaxial with the armature shaft, the front bearing being centered directly with respect to the frame by radial support against the internal cylindrical face of the front peripheral edge of the frame.

Abstract: A free-ejecting starter for cranking an internal combustion engine in a vehicle includes a pinion shaft, which at the front, free-ejecting end, has an engaging pinion and a pinion shank at the opposite end which is guided and supported slidably on a drive shaft of the starter and accommodated in a bearing by a bearing shield of the starter. The pinion shank has a first, outer bearing section which is directly supported on the drive shaft.

Abstract: Due to a centrifugal force in a vehicle width direction due to turning of an automobile, oil in an electric motor housing chamber housing an electric motor and oil in a transmission housing chamber housing a reduction gear and a differential gear flows to-and-fro via oil communication passages that penetrate a partitioning wall. An opening on the transmission housing chamber side of the oil communication passages is spaced from the partitioning wall. Hence, when oil moves from the transmission housing chamber side to the electric motor housing chamber side, it is possible to prevent the oil quantity on the electric motor housing chamber side from increasing excessively and suppress an increase in resistance to oil stirring by a rotor of the electric motor while retaining a constant oil amount on the transmission housing chamber side to ensure lubricating performance for the reduction gear and the differential gear.

Abstract: A directed flux motor described utilizes the directed magnetic flux of at least one magnet through ferrous material to drive different planetary gear sets to achieve capabilities in six actuated shafts that are grouped three to a side of the motor. The flux motor also utilizes an interwoven magnet configuration which reduces the overall size of the motor. The motor allows for simple changes to modify the torque to speed ratio of the gearing contained within the motor as well as simple configurations for any number of output shafts up to six. The changes allow for improved manufacturability and reliability within the design.

Abstract: Due to a centrifugal force in a vehicle width direction due to turning of an automobile, oil in an electric motor housing chamber housing an electric motor and oil in a transmission housing chamber housing a reduction gear and a differential gear flows to-and-fro via oil communication passages that penetrate a partitioning wall. An opening on the transmission housing chamber side of the oil communication passages is spaced from the partitioning wall. Hence, when oil moves from the transmission housing chamber side to the electric motor housing chamber side, it is possible to prevent the oil quantity on the electric motor housing chamber side from increasing excessively and suppress an increase in resistance to oil stirring by a rotor of the electric motor while retaining a constant oil amount on the transmission housing chamber side to ensure lubricating performance for the reduction gear and the differential gear.

Abstract: An electromechanical actuator for controlling the position of an aircraft component has a linear actuator to be driven to position a component.

Abstract: Embodiments of the present invention relate to magnetic gears comprising a pair of rotors magnetically coupled in a geared manner via a magnetic space harmonic generated as a consequence of varying an air gap between sets of permanent magnets.

Abstract: Plural vertically aligned curtain sections form a first wall of a structure and are each coupled to a respective manual or powered rotary drive by means of a respective elongated, roll-up rod disposed in a lower hem, and extending the length, of the curtain section. The rotary drives are attached to horizontally spaced, vertical tracks for limiting the vertical drives, the roll-up rods and each curtain's lower hem to vertical motion in rolling up and unrolling the curtain sections. A water curtain maintained in a moist condition is disposed adjacent the inner surfaces of the curtain sections, with fans disposed on a second opposed wall of the structure for drawing air through the space occupied by the curtain sections for providing moist airflow through the structure's interior. Moist airflow and cooling are precisely controlled by controlling the gap between a pair of adjacent vertically spaced curtain sections.

Abstract: An accessory system includes an accessory gearbox which includes a geartrain and a 2-Pole generator integrally mounted with the accessory gearbox such that a drive gear of the generator is in meshing engagement with the geartrain, containing a shear section, disconnect mechanism, and torsional compliance.

Abstract: An accessory system includes a generator integrally mounted with an accessory gearbox such that a drive gear of the generator is in meshing engagement with the geartrain.

Abstract: A generator includes a drive gear mounted to a main rotor shaft though a drive gear bearing and an input jaw plate keyed to the drive gear for rotation therewith, the input jaw plate defines input jaws which selectively mesh with the disconnect jaws, the disconnect shaft axially movable in response to a disconnect system which axially separates input jaws and the disconnect jaws to permit relative rotation between a main rotor shaft and the drive gear through the drive gear bearing.

Abstract: A linear actuator, in particular for adjusting the flaps in motor vehicle turbochargers. The linear actuator has an adjusting element that can be linearly displaced by an electric motor. The electric motor is a two-phase transverse flux machine. A rotor is arranged between two opposite single-phase stators, and the rotor is connected in a rotationally fixed manner to a rotatable and linearly stationary rotational element that engages with the linearly movable adjusting element in order to cause a linear movement of the adjusting element when the rotational element is rotated.

Abstract: A wind turbine is provided having a drivetrain with a gearbox and a gearbox housing, at least one gear stage and an output shaft coupled within the housing. The gear stage exerts an axial thrust force on the output shaft during operation of the wind turbine. A generator includes a generator housing and an input shaft connected to the output shaft of the gearbox. The generator includes a rotor and a stator coupled to the generator housing. The rotor is coupled to the input shaft such that the rotor is positioned radially inward from the stator. At least one bearing is shared between the gearbox output shaft and the generator input shaft, and this bearing carries a portion of the axial thrust force. The generator is skewed to exert an opposing axial thrust force on the input shaft, so that the axial thrust force carried by the bearing is reduced.

Abstract: A worm wheel housing portion 19 of a gear case 16 has a bottomed cylindrical shape having a bottom wall portion 19a and a cylindrical wall portion 19b, and a bottom cover 35 is assembled at an opening portion of the worm wheel housing portion 19 so as to seal the opening portion. Among a plurality of latching structures for assembling them, as a latching structure other than those on a worm housing portion 17 side, a groove 44 is formed to a latching claw 38b extending along the cylindrical wall portion 19b from an outer circumferential portion of the bottom cover 35, and a projecting piece 47 engaged with the groove 44 is provided on an outer wall surface of the cylindrical wall portion 19.

Abstract: The present invention enables replacement work of a wiper motor to be carried out with a link plate being fixed to an output shaft, and achieves improvement of maintainability. A diameter dimension of a through-hole of a motor bracket is set to that of allowing a tip side of a link plate with a ball joint to pass through the through-hole in a state where the link plate is inclined with respect to the motor bracket. Thus, the replacement work of the wiper motor can be carried out with the link plate being fixed to the output shaft. Alignment work of the link plate with respect to the output shaft becomes unnecessary at a time of the replacement work of the wiper motor, and maintainability can be significantly improved without decreasing positional accuracy of wiper members with respect to a front glass.

Abstract: Embodiments of the present invention include a composite electromechanical machine which can operate as a motor or a generator (including dynamo or alternator). In an aspect, the present composite electromechanical machine consists of at least two rotating elements (rotor) and one stationary element (stator) where the two rotating elements are coupled through a gear mechanism. The gear mechanism can combine the torque of the inner and the outer rotor, preferably using helical gears which have lower noise level and higher contact area. The gear mechanism can also act as a locking mechanism to keep the outer rotor in place. The gear mechanism can have a first gear coupled to the inner rotor and a second gear coupled to the outer rotor. In an embodiment, the first and second gears are coupled together to connect the inner and the outer rotors. The gear mechanism can further include a third gear coupled to the double-sided stator.

Abstract: The invention relates to a rotary electric machine with an eccentric rotor that comprises a stator and an eccentric rotor, the stator including a plurality of magnetic poles circumferentially distributed in order to define a closed cylindrical space, the rotor having a generally cylindrical shape with a diameter lower than that of said closed space and including a plurality of magnetic poles circumferentially distributed, the rotor rotating inside the closed space, wherein the machine further includes a shaft depending on the rotational component of the rotor, said machine being characterised in that, at the area of electromagnetic interaction between the stator and the rotor, the evolute of a stator pole and the evolute of a rotor pole have substantially equal lengths.