Abstract: An outboard motor includes an engine, a crankshaft, a crankcase, a support that contacts a lower end of the crankcase, and a damper connected to a lower portion of the crankshaft and disposed in an isolated space defined by the crankcase and the support.

Abstract: A rotor for an electrical machine comprises a rotor body having an external, axially extending magnet receiving surface for receiving at least one magnet thereon, and a flange mounting portion at at least one axial end of the magnet receiving surface. The flange mounting portion has a smaller external dimension (D1) than an external dimension (D2) of the magnet receiving surface so as to form a shoulder between the magnet receiving surface and the flange mounting portion. A magnet retaining flange is mounted over the flange mounting portion of the rotor body and located against the shoulder. The magnet retaining flange is retained against the shoulder by at least one lip of the flange mounting portion of the rotor body which extends radially outwardly over a radially inner portion of the magnet retaining flange. The lip by deforming an end face of the flange mounting portion.

Abstract: An apparatus for driving a motor for an eco-friendly vehicle is provided. The apparatus includes a motor that has a rotor and a stator and a controller that operates the motor. The motor includes a plurality of stator coils and stator relays and the controller operates the stator relays based on an operation mode to adjust the number of turns of the stator coils.

Abstract: Rotor (1) for a rotary electric machine, comprising: a shaft (2); at least one annular shaped magnet (10) engaged on the shaft; at least one elastically deformable component (9) radially interposed between the shaft (2) and the magnet (10).

Abstract: A generator includes a stator that has permanent magnets that complete a magnetic circuit across a series of gaps and through a generator coil. The rotor also includes permanent magnets that complete a magnetic circuit across a gap and through a rotor coil. When the rotor poles align with the stator poles, the stator and rotor magnetic circuits are broken, and new magnetic circuits are completed between the stator and rotor permanent magnets that cross the gap between the stator and rotor poles. A rotor coil can be used to boost the attraction/repulsion between to rotor and stator magnets. Alternating between these magnetic circuits as the prime mover rotates the rotor generates electricity.

Abstract: A magnetic flux offset system selectively modifies the magnetic force at effective poles of a magnetic flux element. Magnetic flux from each effective pole is enhanced and/or effectively nullified using a control coil. The control coil directs magnetic flux from a magnetic flux donor to nullify magnetic flux from a flux donor at one effective pole. Magnetic flux from the control coil could also add to the magnetic flux from a flux donor at another effective pole. Reversing the current to the control coil could switch the effective pole where the magnetic flux is nullified and the effective pole where the magnetic flux is enhanced.

Abstract: A drivetrain module for a motor vehicle including a flywheel connectable to a crankshaft, and a crankshaft starter-generator which has a rotor. The flywheel has a multiplicity of fastening points. In a region of magnetically soft action of the rotor, a multiplicity of passage openings is arranged in each case so as to be spatially assigned to the fastening points of the flywheel. Through the passage openings, pin-like fastening elements interact with the respectively assigned fastening points for the rotationally conjoint connection of rotor and flywheel.

Abstract: A system to provide power to a downhole-type tool includes a downhole-type electric motor that can be positioned in a wellbore and a variable speed drive electrically connected to the electric motor, in which the downhole-type electric motor can operate at rotary speeds of at least 6,000 rotations per minute (rpm), the variable speed drive can control and supply power to the electric motor when the electric motor is positioned at a downhole location inside the wellbore, and the variable speed drive can be at a surface of the wellbore.

Abstract: An apparatus is disclosed. The apparatus may include a pulse device that may include a magnet. The pulse device may be configured to move the magnet in a reciprocating motion. The apparatus may include a magnet wheel that may include a magnet. A magnetic field produced by the magnet of the pulse device may repulse the magnet of the magnet wheel and turn the magnet wheel. The apparatus may include an axle connected to the magnet wheel. The axle may rotate in response to the magnet wheel turning. A system and method are also disclosed.

Abstract: Disclosed is a magnetic-controlled generator with built-in controller that has integrated design of power generator with magnetic resistance and control circuit unit. The built-in control circuit unit is electrically connected to an armature core, an external digital operator, and a magnetic coil, in order to convert AC power produced by the armature core into DC power to supply for the magnetic coil and meanwhile control the resistance of a flywheel by inserting a number of torque value to the external digital operator. In addition, a software is built inside the generator for instant torque calibration without connecting to extra devices. In application to training machines, the device is easy to be installed and operated without restrictions in extra spaces for a controller and configuration of wires.

Abstract: A rotor for an electric machine has a surface with projections. Each projection protrudes from the rotor in an essentially axial direction and is configured to define a groove between the projection and the surface. The groove of one projection of two adjacent projections and the groove of the other one projection of the two adjacent projections is open towards a region between the adjacent two projections. A cover engages in the grooves of the adjacent two projections, and a sealing compound is applied in the form of a fillet seam between the cover and the adjacent two projections. Received in an intermediate space between the cover and the surface is a permanent magnet, and a pouring compound is received in a remaining hollow space defined between the permanent magnet and the cover and/or the permanent magnet and the surface.

Abstract: A generator includes a stator that has permanent magnets that complete a magnetic circuit across a series of gaps and through a generator coil. The rotor also includes permanent magnets that complete a magnetic circuit across a gap and through a rotor coil. When the rotor poles align with the stator poles, the stator and rotor magnetic circuits are broken, and new magnetic circuits are completed between the stator and rotor permanent magnets that cross the gap between the stator and rotor poles. A rotor coil can be used to boost the attraction/repulsion between to rotor and stator magnets. Alternating between these magnetic circuits as the prime mover rotates the rotor generates electricity.

Abstract: Obtaining of a secure reciprocation of piston magnets and enhance the continuity to obtain a continuous rotary power. The rotary power generating apparatus has the first, second piston magnet members, the crankshaft, the first, second guide members, and the first, second fixed magnet members and the first, second demagnetizing rotary drums respectively having the first, second demagnetizing cylindrical bodies. The first, second piston magnet members and the first, second fixed magnet members are arranged so that the top pole surfaces and fixed pole surfaces, having equal polarity, oppose each other. The first, second demagnetizing cylindrical bodies have demagnetizing magnet parts, having magnetic forces weaker than that of the magnetic poles of the top pole surfaces and different from the polarity of the top pole surfaces, and non-magnetic force parts.

Abstract: This arcuate magnet piece includes: coupling side surfaces which are coupled with other adjacently joined arcuate magnet pieces; a curved inner peripheral surface; and a curved outer peripheral surface which faces the inner peripheral surface. The coupling side surfaces include tip surfaces which intersect, at prescribed angles, tangents to the direction of curvature of the outer peripheral surface. The coupling side surfaces are polarized such that, in cases when the gaps formed with the coupling side surfaces of the other arcuate magnet pieces are disposed so as to be substantially parallel, the magnetic poles of the other joined arcuate magnet pieces are different.

Abstract: Obtaining of a secure reciprocation of piston magnets and enhance the continuity to obtain a continuous rotary power. The rotary power generating apparatus has the first, second piston magnet members the first, second connecting rods the crankshaft, the first, second guide members and the first, second fixed magnet members and it has the first, second demagnetizing member including demagnetizing rotating boards respectively. The first, second piston magnet members and the first, second fixed magnet members are arranged so that the top pole surfaces and fixed pole surfaces, having the same polarity, opposes each other. The demagnetizing rotating boards has demagnetizing magnet parts, having magnetic forces weaker than the magnetic poles of the top pole surfaces and different from the polarity of the top pole surfaces and the non-magnetic force parts.

Abstract: Obtaining of a secure reciprocation of piston magnets and enhance the continuity to obtain a continuous rotary power. The rotary power generating apparatus has the first, second piston magnet members the first, second connecting rods the crankshaft the first, second guide members and the first, second fixed magnet members and it has the demagnetizing member including the demagnetizing rotating board. The first, second piston magnet members and the first, second fixed magnet members are arranged so that the top pole surfaces and fixed pole surfaces having the same polarity, opposes each other. The demagnetizing rotating board has demagnetizing magnet parts, having magnetic forces weaker than the magnetic poles of the top pole surfaces a and different from the polarity of the top pole surfaces and the non-magnetic force parts.

Abstract: A magnetic flux offset system selectively modifies the magnetic force at effective poles of a magnetic flux element. Magnetic flux from each effective pole is enhanced and/or effectively nullified using a control coil. The control coil directs magnetic flux from a magnetic flux donor to nullify magnetic flux from a flux donor at one effective pole. Magnetic flux from the control coil could also add to the magnetic flux from a flux donor at another effective pole. Reversing the current to the control coil could switch the effective pole where the magnetic flux is nullified and the effective pole where the magnetic flux is enhanced.

Abstract: A generator includes a stator that has permanent magnets that complete a magnetic circuit across a series of gaps and through a generator coil. The rotor also includes permanent magnets that complete a magnetic circuit across a gap and through a rotor coil. When the rotor poles align with the stator poles, the stator and rotor magnetic circuits are broken, and new magnetic circuits are completed between the stator and rotor permanent magnets that cross the gap between the stator and rotor poles. A rotor coil can be used to boost the attraction/repulsion between the rotor and stator magnets. Alternating between these magnetic circuits as the prime mover rotates the rotor generates electricity.

Abstract: A ceiling fan motor includes a stator assembly and a rotor. The stator assembly includes an iron core. The rotor is rotatably coupled with the stator assembly and includes a housing, a first positioning member and at least one permanent magnet. The housing includes a lateral wall. The lateral wall is enclosed to form an inner space adapted to receive the iron core. The first positioning member is coupled with the lateral wall. The at least one permanent magnet is positioned by the first positioning member. The first positioning member includes a plurality of air-guiding blades.

Abstract: In a rotor of an electric machine, which rotor consists of individual segments which each have a first part which is in contact with a second cooperating part wherein the first part of an individual segment and the second cooperating part of an adjacent individual segment are positively interlocked in the radial and circumferential directions resulting in a self-supporting annular structure of the assembled rotor. The individual sections have openings accommodating permanent magnets which are fixed in the openings by wall sections bent into the openings during assembly of the segments for fixing the permanent magnets in the openings as the individual segments are joined to form a ring.

Abstract: A drum type washing machine is provided. The washing machine includes a tub, a drum rotatably installed in the tub, and a shaft that penetrates the tub and is connected to the drum so as to transmit a drive force of a motor to the drum. A stator is fixed to a rear wall of the tub, and an outer rotor, including at least one magnet, an annular back yoke, and a rotor frame, is rotatably disposed at the outside of the stator. The rotor frame may be made of an aluminum material, and includes a side wall portion and a rear wall portion integrally formed with the side wall portion.

Abstract: A permanent magnet machine, a rotor assembly for the machine, and a pump assembly. The permanent magnet machine includes a stator assembly including a stator core configured to generate a magnetic field and extending along a longitudinal axis with an inner surface defining a cavity and a rotor assembly including a rotor core and a rotor shaft. The rotor core is disposed inside the cavity and configured to rotate about the longitudinal axis. The rotor assembly further including a plurality of permanent magnets for generating a magnetic field which interacts with the stator magnetic field to produce torque. The permanent magnets configured as one of internal or surface mounted. The rotor assembly also including a plurality of retaining clips configured to retain the plurality of permanent magnets relative to the rotor core. The pump assembly including an electric submersible pump and a permanent magnet motor for driving the pump.

Abstract: Systems, methods, and apparatus for providing a homopolar generator charger with an integral rechargeable battery. A method is provided for converting rotational kinetic energy to electrical energy for charging one or more battery cells. The method can include rotating, by a shaft, a rotor in a magnetic flux field to generate current, wherein the rotor comprises an electrically conductive portion having an inner diameter conductive connection surface and an outer diameter conductive connection surface, and wherein a voltage potential is induced between the inner and outer diameter connection surfaces upon rotation in the magnetic flux field. The method can also include selectively coupling the generated current from the rotating rotor to terminals of the one or more battery cells.

Abstract: A device for positioning a planar array of magnets within a permanent magnet electrical machine of the type having a rotor and stator with an air gap there between. The device includes a body made of non-ferrous material and having a first side which is attachable to the rotor and a second side which, in an assembled machine, faces the air gap. The first side of the body has a plurality of recesses therein for receiving a corresponding plurality of magnets. The recesses are shaped and arranged to separate the magnets from each other and maintain a consistent spacing between them. When the device is attached to the rotor the magnets are held in a fixed position against the rotor. The electrical machine may be a motor or a generator.

Abstract: A method for securing a plurality of permanent magnets about a perimeter of a rotor core is described that includes positioning the plurality of magnets with respect to the rotor core, the magnets including at least one feature formed at each side thereof, each feature opposing a feature formed in an adjacent magnet, and applying a material between the magnets that engages the features formed in the magnets to form a molded material, the material extending into a groove formed within the rotor core such that the molded material operates to engage the rotor core, the engagement of the molded material with the rotor core and the engagement of the molded material with the magnets operative to maintain a position of the magnets with respect to the rotor core.

Abstract: A starter motor for engine has a flywheel fixed to a shaft of the engine. A support is fixed relative to the engine. A space is formed between the flywheel and the support and a driving device is installed in the space. The driving device includes a stator fixed to the support and a rotor fixed to the flywheel.

Abstract: A motor for a plate of a labelling machine comprises a housing with a connecting portion for connecting the motor to a carousel of the labelling machine, a motor shaft pivotally supported within the housing, a coupling flange having a first end connected to the motor shaft and a second end that can be connected to the plate. The motor shaft and coupling flange are joined as one piece such as to form a one-body shaft-flange unit.

Abstract: There is provided an alternating current generator for a vehicle, including: a rotor (1), a flywheel (3), and main magnets (4) and auxiliary magnets (5) alternately arranged; and a stator (2). Each of the main magnets (4) is magnetized to an N-pole and an S-pole in a radial direction, whereas the main magnets (4) are arranged so that the main magnets (4) adjacent to each other through corresponding one of the auxiliary magnets (5) therebetween are magnetized to have opposite polarity patterns. Each of the auxiliary magnets (5) is magnetized to the N-pole and the S-pole in the circumferential direction, whereas the auxiliary magnets (5) are arranged so that the auxiliary magnets (5) adjacent to each other through corresponding one of the main magnets (4) therebetween are magnetized to have opposite polarity patterns.

Abstract: A flywheel levitation apparatus and associated method are described for use in a flywheel driven power storage system having a rotor and which provides for an upward vertical movement of the rotor along an axis of rotation. The rotor includes a rotor face defining a cutaway section. A magnetic lifting force is applied to the rotor to at least in part serve in levitating the rotor. The magnetic lifting force exhibits a modified gap sensitivity that is smaller as compared to a conventional gap sensitivity that would be exhibited in an absence of the cutaway section.

Abstract: A magnetic electrical generator includes a rotational device that rotates a flywheel. The flywheel includes a plurality of magnetic elements that are arranged to alternate in polarity. The plurality of magnets is rotated in between a top and a bottom of at least one pole piece, which creates an alternating B field that is coupled to a pickup coil.

Abstract: Embodiments of the present invention include a shaft-less energy storage flywheel system. The shaft-less energy storage flywheel system includes a solid cylindrical flywheel having permanent motor magnets mounted about the flywheel. The shaft-less energy storage flywheel system also includes a motor stator having motor windings carrying electrical currents. The motor windings of the motor stator are aligned with the permanent motor magnets of the flywheel such that rotation of the flywheel is induced through interaction of the motor winding currents and the magnetic field of the permanent motor magnets. The flywheel provides a magnetic flux path for the permanent motor magnets. In certain embodiments, the shaft-less energy storage flywheel system includes a magnetic bearing assembly disposed directly adjacent an axial face of the flywheel. The magnetic bearing assembly controls positioning and alignment of the flywheel without physically contacting the flywheel during normal operation.

Abstract: An electromagnetic motor having a frame, and at least one disc rotatably mounted to the frame. At least one permanent magnet is mounted on the disc, and at least one electromagnet is mounted to the frame in magnetic proximity to the at least one permanent magnet. A battery is electrically coupled to the motor for powering the at least one electromagnet. A switch controls electrical power between the battery and the at least one electromagnet, and a sensing means is provided for controlling the switch to activate the at least one electromagnet with respect to the at least one permanent magnet to cause the at least one disc to rotate. Preferably, a generator is mechanically coupled to the motor and electrically coupled to the battery for generating electrical power to the battery, and a renewable energy source such as a photovoltaic cell is electrically coupled to the motor to supplement any net electrical loss.

Abstract: A flywheel levitation apparatus and associated method are described for use in a flywheel driven power storage system having a rotor and which provides for an upward vertical movement of the rotor along an axis of rotation. The rotor includes a rotor face defining a cutaway section. A magnetic lifting force is applied to the rotor to at least in part serve in levitating the rotor. The magnetic lifting force exhibits a modified gap sensitivity that is smaller as compared to a conventional gap sensitivity that would be exhibited in an absence of the cutaway section.

Abstract: A system for generating electrical power supply signals includes at least one heat engine having a chamber that undergoes heating/cooling cycle and corresponding pressure variations. At least one piezoelectric transducer is deformed in response to the pressure variations of the heat engine. A power converter transforms the electric signals generated in response to deformation of the piezoelectric transducer(s) to a desired electrical power supply signal. The heat engine preferably uses a geothermal source of cold and an ambient source of hot or vice-versa. Hydrogen can be used as a working fluid, and metal hydride material can be used for absorbing and desorbing hydrogen during the cycle of heating and cooling of the heat engine. A phase change material can also be used. The power converter preferably includes an electromechanical battery with a flywheel storing rotational energy and possibly an electrostatic motor that adds rotational energy to the flywheel.

Abstract: A magnetic generator, or a so-called inner-rotor generator, provided with a rotor on the inside of a stator. The rotor has a ring-shaped yoke and a magnet integrally mounted in advance to the outer circumferential surface of the yoke. The rotor is mounted to a hub spindle of a rotating body.

Abstract: A miniature cooling device includes numerous improvements capable of increasing the reliability and useful lifetime of the device, as well as improving electrical power to cooling power conversion efficiency. The improvements include a DC motor shaft design that incorporates a flywheel mass 314 with a solid shaft cross-section 300 for increasing shaft stiffness and magnetic flux density in the DC motor. Additional improvements include a bend resistant flexible vane 1114 in the DC motor to compression piston drive coupler, and a sealed cover set configured to be removable to make a motor repair and then replaced.

Abstract: In an electric motor of an SBW actuator, a rotor shaft is rotated upon energization of the motor. A rotor core is rotated integrally with the rotor shaft. A resilient member enables tilting or decentering of the rotor shaft upon application of a decentering force on the rotor shaft. A stator core contacts the rotor core when the rotor shaft is tilted or decentered.

Abstract: A magneto generator can increase a suppression force to suppress permanent magnets from being moved to an opening side of a flywheel with easy construction and at low cost. In this magnet generator, the flywheel has a groove formed on its inner peripheral wall surface at an opening side thereof, and a magnet positioning member has a magnet coming-off preventing member formed at the opening side of the flywheel so as to cover end faces of the permanent magnets, with a protrusion being formed on the magnet coming-off preventing member so as to engage the groove in the flywheel. The protrusion is in engagement with the groove whereby the movement in an axial direction of the permanent magnets can be suppressed.

Abstract: The present invention provides an electricity generator for a lighting tower having a plurality of discharge lamps, each lamp being of power greater than 750 W, the generator being arranged to be driven by an engine, the generator being a multiphase generator having n phases, where n is an even integer, each phase being independent in a magnetic circuit that is common to all of the phases and being configured to power one lamp, the generator comprising a rotor with permanent magnets, having 3 n poles, and a stator concentric with the rotor and subjected to the radial magnetic flux from the magnets, the stator comprising a stack of laminations of silicon iron having a silicon content greater than 0.5% and of individual thickness greater than 0.35 mm, defining 4 n magnetic circuit teeth, with every other tooth carrying a winding.

Abstract: A combined generator with built-in eddy-current magnetic resistance including a rotor and a stator iron core with generating coils winding therearound. The rotor consists of an outward turning type inertia flywheel and permanent magnets. A self-generated supply is achieved when the flywheel is driven by a fitness apparatus or a rehabilitation apparatus. An internal ring (A magnet-conductive ring) between the wheel hub and the external ring of the flywheel is extended from the internal wall toward the opening end. The internal diameter of the stator iron core is greater than the external diameter of the magnet-conductive ring such that a magnetic field gap is created. At least one receiving portion is formed in at least one portion of the internal circumference of the stator iron core for receiving at least one solenoid.

Abstract: In a rotor of a magneto generator in which permanent magnets are attached to the inner circumference of a peripheral wall of a cup-shaped formed flywheel, and a plurality of trigger poles are arranged on the outer circumference of the flywheel; the plurality of trigger poles are simultaneously punched out by press working to form a protrusion ring which is formed of a separate member from the flywheel, and the protrusion ring is integrally incorporated to the flywheel to configure the rotor.

Abstract: A magneto rotor which has a cup-like rotor yoke, a plurality of magnets secured on an inner periphery of a peripheral wall portion of the rotor yoke, and a magnet protecting cover having a cylindrical portion that covers inner peripheries of the magnets, and an outer flange being integrated with one axial end of the cylindrical portion and covering end surfaces of the magnets, wherein an annular protrusion protruding toward the opening of the rotor yoke is formed on an area closer to an inner periphery of the outer flange of the magnet protecting cover, an annular adhesive storage portion is formed between the peripheral wall portion closer to the open end of the rotor yoke and the annular protrusion, a groove opening into the adhesive storage portion and continuing circumferentially of the rotor yoke is also formed in the peripheral wall portion closer to the open end of the rotor yoke, and the adhesive storage portion and the groove are filled with an adhesive to seal a boundary between the outer flange of

Abstract: A magnet generator including a bowl-shaped flywheel which is formed of a cylindrical portion and a bottom portion on one end side of the cylindrical portion, a plurality of magnets which are arranged on the inner peripheral surface of the cylindrical portion of the flywheel, and a power generation coil which generates power under an electromagnetic induction action with the magnets and which is disposed in opposition to the magnets within the flywheel, wherein the flywheel has a plurality of vent holes in its bottom portion, and the hole base part of each of the vent holes is formed in a droop or curved shape. Owing to the droop or curved shape, a cooling efficiency is enhanced, and a job for treating burrs and laps after cutting working can be relieved to enhance a productivity.

Abstract: An electric vehicle drive system includes an improved mechanical flywheel, rotor and friction disc assembly comprised of a plurality of coaxial flywheels, friction discs and rotors being driven by electromagnets placed on the outer circumference of the assembly containment ring and interspersed on the outsides of the assembly end plates.

Abstract: Electric power is stored in a flywheel assembly, from a dc power buss, and supplied to the buss, through electronics associated with a motor/generator, its rotor integral with a flywheel supported by magnetic bearings. Upon operation, the flywheel assembly is released by mechanical backup bearings which then normally remain disengaged until shutdown as the flywheel assembly is levitated by the axial magnetic field. Enhancements developed herein smooth the flux density across discontinuities or segments present in permanent magnets due to presently limited capability for manufacture of large annular magnetic members. Herein, the introduction of a medium such as a steel cylindrical member to directly interface with the rotor as opposed to the segmented permanent magnet, greatly eradicates induced eddy current and heat on the rotor. In addition, exhibited is an annularly slotted rotor which allows for greater surface area for flux absorption.

Abstract: An external rotor motor, composed of at least a stator with a stator core, coil winding, and insulating housing; a rotor; a plurality of bearings; and a rotating shaft. The rotor is disposed outside the stator and connected to the rotating shaft. The rotating shaft is disposed on the stator via the bearing. The coil winding is wrapped on the stator core. The stator core and the coil winding are disposed in the insulating housing. The external rotor motor of the invention is waterproof and dustproof; does not oxidize easily; features good insulation performance and integrity, light weight, and low cost; and is easy to manufacture.

Abstract: A flywheel (magnet rotors or stators) assembly to create electricity, by attaching motor to provide kinetic energy to magnet rotors or stators, so magnet rotors or stators can run on principal of flywheel to create electricity by magnet rotors rotating like flywheel on two sides of stator, and stator rotating like flywheel in-between magnet rotors.

Abstract: A magneto generator can reduce the man-hours of processing and an amount of use (i.e., an amount of material) of permanent magnets used per generator. The magneto generator includes a bowl-shaped flywheel that rotates about an axis of rotation, a plurality of permanent magnets that are fixedly secured to an inner peripheral wall surface of the flywheel, a stator core that is arranged at an inner side of the permanent magnets and has a plurality of teeth protruding to a radially outer side, and magneto coils that are formed of conductors wound around the teeth, respectively. Each of the permanent magnets is composed of a plurality of magnet pieces that are formed by dividing a hexahedral magnet main body with a division surface extending in a radial direction.

Abstract: A combined generator with built-in eddy-current magnetic resistance including a rotor and a stator iron core with generating coils winding therearound. The rotor consists of an outward turning type inertia flywheel and permanent magnets. A self-generated supply is achieved when the flywheel is driven by a fitness apparatus or a rehabilitation apparatus. An internal ring (A magnet-conductive ring) between the wheel hub and the external ring of the flywheel is extended from the internal wall toward the opening end. The internal diameter of the stator iron core is greater than the external diameter of the magnet-conductive ring such that a magnetic field gap is created. At least one receiving portion is formed in at least one portion of the internal circumference of the stator iron core for receiving at least one solenoid.

Abstract: A magneto generator can reduce the man-hours of processing and an amount of use (i.e., an amount of material) of permanent magnets used per generator. The magneto generator includes a bowl-shaped flywheel that rotates about an axis of rotation, a plurality of permanent magnets that are fixedly secured to an inner peripheral wall surface of the flywheel, a stator core that is arranged at an inner side of the permanent magnets and has a plurality of teeth protruding to a radially outer side, and magneto coils that are formed of conductors wound around the teeth, respectively. Each of the permanent magnets is composed of a plurality of magnet pieces that are formed by dividing a hexahedral magnet main body with a division surface extending in a radial direction.