Abstract: The MagnoDrive is a drive developed to generate mechanical torque/mechanical power output as an electric motor does. This uses the magnetic field reaction to produce the rotational motion without any external power input. In a way, it extracts the magnetic energy from the environment (or uses internal stored energy of the magnet) to produce the power output. This uses reaction of the magnetic fields of permanent magnets to produce rotational motion. This is linearly scalable to meet high power demand, by constructing many stages on single shaft as a Multistage MagnoDrive. This can be coupled directly to any mechanical system or to a generator to get electric power output. Electric powered MagnoDrive works on the same principle as a MagnoDrive except, the permanent magnets are replaced with electro magnets. This is pollution free, cost free energy supply source, aimed to serve every one everywhere.

Abstract: The invention refers to an electrical machine with at least a machine unit (1). The machine unit includes a stator, which includes a plurality of magnetic flux conductors (3′, 3″) and an electric conductor forming a winding extending in a substantially closed winding path through each magnetic flux conductor, and a movable element (10), which includes a number of permanent magnet elements (12′, 12″) and which is movable in a reciprocating movement in relation to the stator along a movement path. The winding path includes a first current carrying portion (6a), which extends substantially in parallel with the movement path. Each magnetic flux conductor (3′, 3″) is arranged to form, together with one of said permanent magnet elements (12′, 12″), a closed magnetic flux circuit extending around said current carrying portion.

Abstract: It is a stepping motor enabled to prevent generation of detent torque therein and arbitrarily set the detent torque. This stepping motor has a rotor constructed by rotatably supporting a shaft, to which a multi-polarized permanent magnet (3) is fixed, and a stator consisting of a plurality of air-core coils (4, 5), each of which is made from a predetermined number of turns of a wire wound around an axis perpendicular to a central axis of rotation of the rotor, to be placed along a peripheral surface of the permanent magnet (3) and to be evenly disposed to face one another.

Abstract: The invention refers to an electrical machine with at least a machine unit (1). This machine unit includes a stator, which includes a plurality of magnetic flux conductors (3′, 3″) and an electric conductor forming a winding extending in a substantially closed winding path through each magnetic flux conductor, and at least one first movable element (10), which includes a number of permanent magnet elements (12′, 12″) and which is movable in a reciprocating movement in relation to the stator along a first movement path in a space having a finite length and formed by at least some of said magnetic flux conductors. The winding path includes a first current carrying portion (6a), which extends substantially in parallel with the first movement path. Each magnetic flux conductor (3′, 3″) is arranged to form, together with one of said permanent magnet elements (12′, 12″), a closed magnetic flux circuit extending around said current carrying portion.

Abstract: A permanent magnet motor having a rotor with permanent magnets disposed on the outer circumferential face at a predetermined interval in a peripheral direction, and a stator with magnetic pole pieces arranged at a predetermined spacing in the peripheral direction, the magnetic pole pieces being opposed to the permanent magnets, the stator surrounding the rotor, wherein the auxiliary grooves are provided on a face of each magnetic pole piece of the stator opposed to the permanent magnets of the rotor, and a skew having an electric angle of 72° is provided relatively between the rotor and the stator.

Abstract: A means for creating perpetual motion of a battery operated fan module has been disclosed. A battery-operated device such as a fan can be operated continuously without interruption for an indefinite period.

Abstract: A motor which has an improved energy efficiency, is excellent in practical use and has a generator function at the same time. The motor is provided with a basic factor 15 having working surfaces 55a and 55c on both sides thereof, respectively, and movable members 57 made of a magnetic material and arranged opposite to the working surfaces, respectively. Further, the basic factor 15 is provided with an electromagnet element 17 and permanent magnets 19 arranged on both sides thereof through contact surfaces, respectively, and the working surfaces and the contact surfaces are held opposite to each other through the permanent magnets 19, respectively.

Abstract: A DC motor which is small in size and capable of effecting a higher output, and in which magnet size is determined through a parameter by which the peak output characteristic corresponding to the shape and size of the yoke can be recognized properly.

Abstract: This invention would be the first passenger automobile not requiring gas or any other fuel of any kind; nor will it require either solar or electric energy. The vehicle will operate, (will be powered) by the dynamics of the physical effects of electro-magnetism, centrifugal/centripital forces arising from the momentum of two independently spinning metalic discs, facing each other horizontally, and moving in alternate, (clockwise and counterclockwise) directions. These “Drive Discs” are magnetized at their perpendicular edges. Between these two discs are two rotating Drive Shafts which connect to front and rear wheel gear hubs. Sustained “spin” of discs, (torque of drive shafts) is achieved by the natural repulsive forces of two magnets having the same polarity. All variations in speed, etc. are computer controlled for the essential power train torque rotation and locomotion of the vehicle.

Abstract: A rotation detector includes a rotor having a shaft. Projections are located at predetermined intervals on the periphery of the rotor and extend in an axial direction. Magnets are located between the projections and the shaft. The flux of each magnet is detected by a corresponding magnetism detection element. Each magnetism detection element has magnetic resistors. Movement of the projections changes the direction of flux of the magnets. Each resistor is switched between a first state, in which its magnetic resistance is great, and a second state, in which its magnetic resistance is small, in accordance with the change of the flux direction. The resistors are divided into two groups. The groups are substantially symmetrical relative to a centerline of the groups such that, when the direction of the flux changes, the resistors in one group are in the opposite state from the resistors in the other group. The centerline of changes in the direction of the flux matches the centerline of the resistor groups.

Abstract: A ferrofluidic electrical power generator installed within an agitating object, such as the interior of a vehicular tire generates electrical current in an electrical winding wound about an elongated permanent magnet. The winding is surrounded by sealed container made of non-magnetic material, partially filled with magnetized ferrofluid. The permanent magnet and the magnetized ferrofluid form a magnetic circuit surrounded by the electrical winding. Rotation and horizontal velocity of the tire will agitate the magnetized ferrofluid within the sealed container causing cyclic variations in the distribution of the magnetized ferrofluid causing variation in the magnetic flux density, thus, induction in the electrical winding.

Abstract: A motor which has an improved energy efficiency, is excellent in practical use and has a generator function at the same time. The motor is provided with a basic factor 15 having working surfaces 55a and 55c on both sides thereof, respectively, and movable members 57 made of a magnetic material and arranged opposite to the working surfaces, respectively. Further, the basic factor 15 is provided with an electromagnet element 17 and permanent magnets 19 arranged on both sides thereof through contact surfaces, respectively, and the working surfaces and the contact surfaces are held opposite to each other through the permanent magnets 19, respectively.

Abstract: An apparatus for producing magnetically induced movement of a second member in relation to a first member. The apparatus includes a first member having at least one perimeter magnet disposed thereon. The first member and at least one perimeter magnet are pivotable in relation to an axial member central of the first member. A second magnet is disposed central of the at least one perimeter magnet, with the second magnet disposed on a second member that is reciprocatable in relation to the first member as the second magnet is alternately attracted and repelled by magnetic forces of the at least one first magnet, and is also moved by gravitational force. Additional perimeter magnets and axial magnets are disposed in relation to the at least one perimeter magnet and the second magnet to convert motion of the first member into movement of the second member for recreational and energy conversion applications.

Abstract: A device to accelerate and amplify rotary motion energy utilizing magnetic force, which creates a larger amount of kinetic energy than the energy consumed. A driven rotor with a plurality of permanent magnets attached on its external circumference is rotatably mounted, and a drive rotor with a plurality of permanent magnets on its external circumference is provided close to the driven rotor, with the permanent magnets provided at the drive rotor being more than 1 time as many in number as those provided at the driven rotor, and each pair of these adjacent permanent magnets having an inverse polarity to each other, each permanent magnet on the driven rotor being adjusted to be located between each pair of adjacent permanent magnets on the drive rotor.

Abstract: An apparatus for generating autogenic energy includes a base, a first magnetic device, a second magnetic device and a transmission member. The transmission member is mounted movably on the base. The second magnetic device is connected to the transmission member and is movable together with the transmission member in a predetermined rotational direction by the interaction force of the first and second magnetic devices. The second magnetic device is capable of being disposed adjacent to the first magnetic device in an interaction position and is receives a positive force such that the second magnetic device is rotatable away from the first magnetic device in a first rotational direction to produce an angular momentum. The second magnetic device and the transmission member respond to the inertial force and the positive force to be moved past a counterbalance position without being stopped by a negative force and to continue moving in the first direction back to the interaction position.

Abstract: A regulated permanent magnet generator incorporating a “tapered” or conical design for improved voltage regulation. The tapered faces of the rotor and stator are axially displaced from one another as the demand for voltage changes. In addition, this design allows for the stator and rotor to be used as a braking mechanism when placed into frictional contact with one another such as to prevent windmilling. This design offers better space efficiency when used with certain engine applications.

Abstract: A revolving speed increasing apparatus in which the repulsion of the magnets acts effectively only in the rotational direction to increase the revolving speed by the magnets. A rotary plate, fixed to a rotary shaft so as to integrally rotate, and a fixed plate, fixed to a stationary portion, are opposed to each other. A plurality of radially arranged elongated magnets provided at equal intervals, magnets for demagnetization fixed to the elongated magnets on one side thereof so as to protrude from the tips of the elongated magnets, and plate magnets arranged between the adjacent elongated magnets are provided on the opposed surfaces of the rotary plate and fixed plate. The rotary plate and the fixed plate are arranged with a rotational gap between the tip surfaces of the magnets for demagnetization. The poles at the opposed tips of the elongated magnets on the rotary plate and those on the fixed plate are of the same polarity.

Abstract: By this invention, rotation of an output shaft is achieved by means of a magnetic motor comprising a vertically movable power rod and a rotatable balance wheel wherein multiple permanent magnets are affixed to the outer periphery of the balance wheel and a single permanent magnet is affixed to the power rod so that the magnets on the balance wheel come into intermittent proximity to the magnet on the power rod by which the magnetic forces between the magnets cause rotation to the output shaft.

Abstract: A high efficiency electric motor has a generally polyhedrally shaped bulk amorphous metal magnetic component in which a plurality of layers of amorphous metal strips are laminated together to form a generally three-dimensional part having the shape of a polyhedron. The bulk amorphous metal magnetic component may include an arcuate surface, and preferably includes two arcuate surfaces that are disposed opposite to each other. The magnetic component is operable at frequencies ranging from between approximately 60 Hz and 20,000 Hz and exhibits (i) a core-loss of less than or approximately equal to 1 watt-per-kilogram of amorphous metal material when operated at a frequency of approximately 60 Hz and at a flux density of approximately 1.4 Tesla (T); (ii) a core-loss of less than or approximately equal to 20 watts-per-kilogram of amorphous metal material when operated at a frequency of approximately 1000 Hz and at a flux density of approximately 1.

Abstract: A magnetically actuated rotary apparatus includes a casing, a supporting frame, a central shaft, a rotor assembly, an outer actuating assembly, and an actuating device. The rotor assembly is coupled with the central shaft and rotatable with the central shaft about a central axis of the central shaft. The rotor assembly is provided with a plurality of fixed rotor magnets supported by a fixed rotor magnet supporting mechanism to the rotor assembly. Each of the fixed rotor magnets has an inclined angle with respect to the central axis of the central shaft. An outer actuating assembly is arranged around the rotor assembly, comprising a plurality of movable outer magnets spaced by baffle plates from each other. The movable outer magnet is formed with an inclined angle correspondingly opposite to the fixed rotor magnet mounted on the rotor assembly.

Abstract: A permanent magnet generator incorporated in a diskette that can be inserted into a floppy disk drive is disclosed. In the permanent magnet generator, electric power is generated as a rotor is caused to rotate at a revolution twice to ten times as high as that of the drive shaft of a floppy disk drive by transmitting the rotation of the drive shaft to a rotor via a speed increasing mechanism incorporated in a diskette. Since the cogging torque of the generator is reduced, the rotor can be caused to rotate with a small drive torque. This allows the generator to produce a high output.

Abstract: A rotating machine that can generate standard AC, high-frequency AC, or DC electricity by non-conventional means. The method involves changing the air gap between a pole of a stationary magnet and a ferromagnetic member on a rotating disk-like flywheel. Each time the distance of the air gap changes from a maximum to a minimum and back to a maximum, half a cycle of magnetic flux is produced in the circuit of the magnet. A conductor coil is wound around the magnet so that the half cycle of magnetic flux produces a half cycle of EMF in the conduction coil. The flywheel contains non-magnetic material as well as ferromagnetic material, which may be in the form of discrete bars or be shaped like a gear.

Abstract: A hybrid-type magnet includes an electromagnet having a U-shaped core made of a magnetic material. The core includes a core body having outer ends and a pair of opposing arms extending upwardly from the outer ends of the core body, wherein each opposing arm includes an upper end having an end surface. An excitation coil is wound on the core. The hybrid-type magnet also includes a bar-like engagement member including a permanent magnet having a direction of magnetization, the permanent magnet being disposed between magnetic members. The magnetic members are closely joined to the respective end surfaces of the arms, the permanent magnet being positioned between the arms of the core, whereby the end surfaces of the opposing arms extend in a direction substantially parallel to the direction of magnetization of the permanent magnet.

Abstract: The present invention provides an improvement in a two-axis pointing motor (20) having a frame (21) and an armature (22). The armature has an axis (x-x) passing through a point (P). The armature is mounted on the frame for controlled omni-directional pivotal movement of the axis about the point. The motor has a permanent magnet (24) mounted on the armature, and has a plurality of coils (25,25,25,25) mounted on the frame for creating controllable electromagnetic fluxes for urging the armature to pivot about the point. In one aspect, the improvement comprises the coils being positioned such that the entire volume of each of the coils is entirely within an imaginary hemisphere (h) generated about the point. This hemisphere is of arbitrary radius, but encompasses the coils. In another aspect, the improvement comprises the armature having a magnetically-conductive surface (33) which is configured as a segment of a sphere.

Abstract: The nested magic cylinders are rotatable and coaxially arranged so that the bore of the inner cylinder provides a central working space. The predetermined magnetic orientation of each cylinder's sections is arranged to create a relatively strong and uniform magnetic field within the central working space or bore in which copper wires are imbedded to form a core. A core having copper wires embedded within the working space is coaxially positioned within the bore to act as a rotor and when current flows within the copper wires an electric motor is therefore formed. Alternatively, a rotating device can mechanically rotate the rotor or core, inducing a current in the copper wires in the rotor or core thereby forming an electric generator. The sections of the nested permanent magnet cylinders are arranged such that each of the sections have a magnetic orientation forming a pair of coaxial “magic” cylinders or rings that counter rotate with respect to each other.

Abstract: A permanent magnetic generator comprises a base 21 having fixedly a first magnetic body 23; a stator member 35 horizontally disposed above the base 21 through support members 27 and has a stator support 36; a drive-motor support 50 horizontally disposed and fixed to the support members 27 such that a space 61 is formed above the stator member 35; a rotoary shaft 55 penetrtes a first center hole 42 formed in the stator support 36 and a second center hole 51 formed in the drive-motor support 50 and is supported by means of bearing 43 and 52; a rotor 60 fixed to the rotary shaft 55 to be located within the space 61 and has annular permanent magnets 65 that face stator windings 38 of the stator member 35; a second magnetic body 56 fixedly attached to the projected lower end 55a of the rotary shaft 55 such that the second magnetic body 56 floats due to a repulsive force generated between the first and second magnetic bodies 23 and 56; a bearing member 80 attached to the drive-motor support 50 in order to support t

Abstract: A method and apparatus for heating substances such as beverages, soups, chemicals, etc., with heat produced by circulating electrical eddy currents. In one form of the device, a magnetic flux generating base produces a varying magnetic field by using an electric motor to move a plurality of permanent magnets. The varying magnetic field induces the eddy currents to circulate in a ferromagnetic conductor that is sealed in the bottom of a container resting on the magnetic flux generating base. Losses due to the eddy current produce heat that is transferred into the substance within the container. In another embodiment, the motor moves one or more magnetic flux shunts to vary the magnetic field experienced by the ferromagnetic conductor. The presence of the container on the magnetic flux generating base can be detected and used to control the operation of the electrical motor.

Abstract: A driving apparatus includes a rotatable disk. The rotatable disk has a first magnet alley including a plurality of first permanent magnets arranged along a periphery of the disk. A reciprocal device has a second magnet alley that includes a plurality of second permanent magnets in association with the first permanent magnets. Each second permanent magnet is movable between two positions to attract and repel each first permanent magnet.

Abstract: The invention concerns a rotating electric machine comprising a stator equipped with armature coils and a rotor mounted rotating inside the stator. The rotor having a rotor part with permanent magnet(s) and a rotor part with magnetic resistance. The rotor is substantially uniform over its axial surface and ahs along its tangential direction a distribution of polar parts with permanent magnet(s) each defining two poles of polarities imposed by magnet(s), ad polar parts with magnetic resistance each defining two poles with free polarities. The invention is applicable to motor vehicle alternators or AC starters.

Abstract: A permanent magnet generator is so thin as to be incorporated in a 3.5″ diskette. The generator having so low cogging torque that can be rotated smoothly even by a low torque driving source as a 3.5″ FDD to generate stable output is disclosed. It has stator magnetic poles facing via a magnetic gap an outer circumferential surface of the stator permanent magnet having a plurality of magnetic poles on it. One to six of the stator magnetic poles are removed and instead of the removed magnetic poles provided is a soft magnetic piece to face the rotor magnetic poles. Grooves are preferably provided on the soft magnetic piece, facing the rotor magnetic poles. A notch is provided on the permanent magnet generator to avoid interference with an input/output terminal and/or a card contact terminal of the diskette for inserting a memory card.

Abstract: Disclosed is a permanent magnet motor consisting of a rotor which is a multi polar-magnetized cylindrical permanent magnet such as a neodymium/iron/boron magnet, and a stator having a plurality of stator teeth. Different from conventional but expensive multi-radial orientation of the magnetic anisotropy, the cylindrical permanent magnet has a direction of orientation along a single diameter of the cylinder that is perpendicular to the cylinder axis when a definite relationship is held between the number of the multipolar magnetic poles and the number of the stator teeth. Even when using such a simple and inexpensive cylindrical permanent magnet as the rotor, high performance of the permanent magnet motor can be ensured with regard to a large induced voltage and small torque ripples.

Abstract: It is an object of the present invention to provide a rotary electrical device that can be manufactured easily, and which produces a high output torque at low operating speeds. The rotary electrical device comprises: a stator core. The rotary electrical device comprises: a stator core having Z1 stator slots for receiving three-phase windings which generate a rotational magnetic field of p magnetic pole pairs in the stator core, and Z1 permanent magnets being provided in tooth sections fabricated between the stator slots around the stator core; and a rotor core having Z2 permanent magnets being provided around the rotor core; wherein Z1, Z2 and p are related by an expression Z2=Z1±p, and direction of magnetic poles of all permanent magnets are aligned identically in a radial direction.

Abstract: An electric motor with a stator having two magnetic shells (2, 3) has a spring element (6) which prestresses the magnetic shells (2, 3) against a stop fixed to the housing. The spring element (6) bears on both magnetic shells (2, 3) with in each case two bearing points. The spring element (6) has a particularly low spring stiffness as a result of this.

Abstract: A vibration generating mechanism includes at least first and second permanent magnets spaced from each other with the same magnetic poles opposed to each other. The first permanent magnet is coupled to a link mechanism so that the drive force of a drive source may be transmitted to the first permanent magnet via the link mechanism. A periodic and reciprocating movement of the first permanent magnet relative to the second permanent magnet changes the opposing area thereof, causing vibration of the second permanent magnet.

Abstract: A motor includes a rotor including a permanent magnet circumferentially equally divided and alternately magnetized to different poles into a cylindrical shape. A first coil and a second coil are displayed inside and axially of the rotor. First outer magnetic poles and first inner magnetic poles are excited by the first coil and are opposed to the outer peripheral surface and inner peripheral surface of the rotor, respectively. Second outer magnetic poles and second inner magnetic poles excited by the second coil are opposed to the outer peripheral surface and inner peripheral surface of the rotor, respectively. The first inner magnetic poles and the second inner magnetic poles are located between the first coil and the second coil, to thereby make the opposed area of the outer magnetic poles, the inner magnetic poles and the magnet large and provide a super-compact motor of a high output and high efficiency.

Abstract: A permanent magnet motor is provided comprising a plurality of individual permanent magnets 7 threaded inside of a rotor, an N pole magnetic circuit commonly connected to N poles of the plurality of individual permanent magnets 7, an S pole magnetic circuit commonly connected to S poles of the plurality of individual permanent magnets 7, a plurality of N pole magnetic poles 5 positioned on the rotor surface, the N pole magnetic poles 5 being a part of the N pole magnetic circuit, and a plurality of S pole magnetic poles 6 positioned alternately with the N pole magnetic poles 5 in the rotational direction of the rotor, the S pole magnetic poles 6 being a part of the S pole magnetic circuit, wherein the change rate of the rotation of flux linked to the stator winding is increased to output a large torque.

Abstract: A molding machine includes a drive unit for linearly moving a movable body, such as a movable platen of a clamping apparatus. The drive unit includes a linear motor. The linear motor includes a linear movement body having moving-side magnetic-pole portions and supported in an axially movable manner, and a stationary body having stationary-side magnetic-pole portions adapted to linearly move the linear movement body. The linear movement body is connected to the movable body (movable platen). The linear movement body has moving-side inclined surfaces on which part of the moving-side magnetic-pole portions are disposed. The stationary body has stationary-side inclined surfaces which face the moving-side inclined surfaces and on which part of the stationary-side magnetic-pole portions are disposed.

Abstract: The present invention relates to an electromagnetically controlled drive device, in particular a ratio meter, the device being of the type comprising: a set of control coils (10, 20); a frame (50) which carries the set of coils (10, 20); equipment including a magnet suitable for being pivoted by the set of control coils (10, 20); and magnetic shielding (100) surrounding the set of coils (10, 20) and the support frame, at least in part, the device being characterized by the fact that the shielding (100) comprises an annular skirt (110) that is not a circular cylinder.

Abstract: A reluctance motor is provided that reduces leaking magnetic flux. To generate magnetic flux between adjacent magnetic poles in a rotor 2, permanent magnets 4 are disposed in approximate centers of split magnetic paths near a borderline area between two magnetic poles in an internal portion of the rotor. Further, each of slots 8 in a stator 1 is wound with a coil of a corresponding phase such that the vector phase and amplitude expressed by the products of the number of coil turns and the amount of passing current, namely, ampere-turns, become almost identical for each of the slots. By reducing leaking magnetic flux according to this arrangement, generated torque can be increased. As the rotor mechanical strength is enhanced, the rotor can be safely driven at a higher speed. A practical motor is obtained that simultaneously achieves improved motor characteristics and reduced torque ripples.

Abstract: A permanent magnet generator is described. The generator includes a shaft which defines a longitudinal axis. A rotatable magnetic field assembly is mounted on the shaft and adapted for rotation about the shaft. The magnetic field assembly includes a plurality of axially magnetized magnets which are retained in a cavity about the shaft for generating an axial magnetic flux. A plurality of vanes are mounted on the magnetic field assembly housing for rotating the magnetic field assembly about the shaft when a fluid flows past the vanes. A stationary armature assembly is also located around the shaft in a position axially spaced from the magnetic field assembly. The armature assembly generates AC power when the magnetic field assembly is rotated. The stationary armature assembly includes an armature housing. An axial bore is formed through the armature housing for receiving the shaft. The armature housing defines a cavity about the axial bore in which a plurality of laminated bars are retained.

Abstract: A molding machine includes a drive unit for rotating and linearly moving a movable body. The drive unit includes a linear motor and a rotary motor. The linear motor includes a linear movement body having moving-side magnetic-pole portions and supported in an axially movable manner and a stationary body having stationary-side magnetic-pole portions adapted to linearly move the linear movement body. The linear movement body has moving-side inclined surfaces on which part of the moving-side magnetic-pole portions are disposed. The stationary body has stationary-side inclined surfaces which face the moving-side inclined surfaces and on which part of the stationary-side magnetic-pole portions are disposed. The rotary motor is incorporated into the linear movement body and is adapted to rotate an output shaft connected to the movable body.

Abstract: A brushless DC motor has a stator and a rotor. The stator has a stator core and excitation coils wound around the stator core. The rotor has a rotor core disposed at the inner space of the stator, and many permanent magnets inserted into the rotor core. The permanent magnets are symmetrically tilted with respect to a radial direction of the rotor core. The rotor core is formed with slots for cutting off a magnetic field between the permanent magnets adjacent to each other. The slots are parallel with an axis of the rotor core. The slots are formed between ends of the permanent magnets adjacent to each other at an outer part of the rotor core. The vortex of magnetic flux between the permanent magnets is prevented by the slots.

Abstract: The object of the present invention is to increase torque generation of a motor, to minimize a motor size, and to reduce a motor cost by improving a magnetic circuit of a rotor. In order to achieve the object and make effective use of the power of each permanent magnet within the entire motor, the present invention provides a motor comprising magnetic circuits for the pole N 5 commonly connected to the north pole of permanent magnets 7, magnetic circuits for the pole S 6 commonly connected to the south pole of permanent magnets 7. Also, the motor further comprises magnetic poles N in the shape of protruding poles of the north pole and the magnetic poles S in the shape of protruding poles of the south pole. The magnetic poles N, forming a part of the magnetic circuits for the pole N, are placed on a part around the perimeter of the rotor, and the number R of the magnetic poles N is different from the number m of stator poles.

Abstract: A brushless DC motor, whose stator (10) is a combination of stator yokes (11, 16), a bobbin (14) on which a magnetic field coil (15) is wound and to which terminal pins are provided, and a base plate (20). The stator (10) is fixed to the base plate (20) by a protrusion (12c) provided on the bobbin (14) or by a flange (18a) formed on a bearing. The widths of magnetic poles (11a, 16a) of the stator, which are measured in the circumferential direction of the stator, are smaller than the width of one of the poles of a rotor magnet (5). Thereby, the position of a stable point is a maximum excitation torque position. Further, a magnetic pole sensing element (21) is provided at a place which is shifted in the circumferential direction from the middle position of one of the magnetic poles of the rotor magnet (5).

Abstract: Plural magnet insertion holes are provided at a vicinity of an outer peripheral of a laminated rotor core toward a circumferential direction and extend toward an axial direction. The magnet insertion holes are divided into plural toward the axial direction and each of the plural magnet insertion holes is shifted at a predetermined angle toward a circumferential direction. The permanent magnet is arranged in the magnet insertion hole and the permanent magnet is fixed to the laminated rotor core through a clearance fill-up agent. The cogging torque is reduced and the reduction in noises is improved and a permanent magnet rotation type rotor constituted by low cost materials is prevented from damaging or destroying by the centrifugal force.

Abstract: A motor produces a rotary motion by synchronizing the attractive and repulsive magnetic interactions of magnetic fields. A stator magnetically interacts with a rotor, cycling through changes in magnetic phase. A minimum of energy is required to spin the stator between modes. During a freewheeling state, the stator spins about its own axis while a rotor passes by. A second stator interacts with a magnetic field to create an equal and opposite magnetic force sufficient to rotate the stator. A rotor is mounted about a central axis and has a pair of diametrically opposing arcuate magnetic channels located substantially near the periphery of the rotor. A magnetic field extends substantially across each channel in which the polarities of the channels are equal and opposite extending radially outward or inward with respect to the central axis. When the rotor channel passes through a stator central axis of rotation, the rotor and stator are in magnetic proximity to one another.

Abstract: A rotary magnetic field device for use in a dc motor or generator, or an ac motoer or generator. The device has a permanent magnet rotor, stator field windings and an outer cylindrical stator piece preferably being a continuous wire wrapping. The stator wire is magnetically permeable (silicon iron or steel). The stator wire, being transverse to the magnetic field assures low eddy current loss. The rotor is a material having a high energy product (BH.sub.max) preferably a neodymium-iron-boron compound. When used as a dc motor, the motor is characterized by exhibiting no ripple and economy of construction.

Abstract: A permanent magnet rotor for an electric generator or motor has a core lamination hub formed of a stack of generally round plates with peripheral slots for holding the first end of a rectangular magnet. Each magnet has an outer end which is held by a slotted pole piece formed of laminated plates. First and second side plates overlie each side of the hub, magnets and pole pieces, and fasteners such as rivets are passed through holes in the side plates, hub plates and pole pieces to form a rigid rotor in which each rectangular magnet is supported and restrained on all six sides. A method for fabricating the rotor is also disclosed.

Abstract: A torquer assembly is to exert torques about two mutually orthogonal axes on a platform which is mounted for universal movement about a central swivelling point. To this end, a stator having four pairs of pole pieces is provided. The pole pieces are angularly spaced by 90.degree. about an axis passing through the swivelling point. The pole pieces of each pair define an air gap therebetween. The air gap is limited by spherical surfaces. The spherical surfaces are curved about the swivelling point. Permanent magnets together with the pole pieces and magnetic return loops form magnetic circuits, a magnetic field being generated in the air gaps. An armature with four elongated, arcuate coils angularly offset with respect to each other by 90.degree. is connected with the platform. The coils have circumferentially extending turns. Each of these coils extends, with an arcuate coil section, into the air gap of a respective one of the pairs of pole pieces.

Abstract: An induction generator having a pair of magnetic poles of the same polarity opposed to each other with respect to a rotation shaft is characterized by a high energy conversion efficiency.