Abstract: A magnet carrier assembly for holding and carrying a high-energy-product permanent magnet is arranged for releasable attachment to a rotor of an axial disc or drum type rotor in an electric machine. The permanent magnet placed in a container which then receives a cover. The magnet carrier assembly includes a mounting flange at one end and a locating and mounting tab at an opposite end for attaching the assembly to the rotor. In certain applications, the rotor has recesses which have a size and shape complementary to the size and shape of the magnet carrier assembly. The recesses are circumaxially located around the radial periphery of the rotor at the poles of the rotor. In other embodiments, the magnet carrier assembly includes a key which is received in a mating groove in a rotor surface and is used to transfer to the rotor the electromagnetic shear force developed by the high-energy-product permanent magnet.

Abstract: An induction motor includes a stator defining stator inner and stator outer diameters extending about a longitudinal axis, the stator includes a plurality of windings extending longitudinally and circumferentially about the longitudinal axis between the stator inner diameter and the stator outer diameter, passing an electric current therethrough to create a magnetic field, a rotor extending along the longitudinal axis having a rotor length and a rotor outer diameter less than the stator inner diameter, the rotor being rotatable about the longitudinal axis relative to the stator in response to the magnetic field, the rotor including a hoop portion disposed adjacent the rotor outer diameter and extending radially inwardly toward the longitudinal axis, the hoop portion being a solid unitary structure being fabricated of an Aermet alloy material.

Abstract: The present invention is a energy storage apparatus. The energy storage apparatus includes a rotor and a stator and a hub rotatably positioned about a stationary axial shaft. The hub also includes at least one spoke plane projecting radially from the hub, and the at least one spoke plane contains at least one spoke. The at least one spoke includes an in-plane bending stiffness exceeding an out-of-plane bending stiffness.

Abstract: In one embodiment of the present invention, an electrical generating system includes a flywheel having an electrical generator rotor portion. The flywheel is at least partially enclosed by a housing. One or more electrical generator stator portions are mounted in opposition to the electrical generator rotor portion such so as by attaching the electrical generator stator portions to extend through the housing. The electrical generator stator portions each have a direct-current output, the direct-current outputs capable of being coupled together in parallel. Where a variable number of electrical loads are available on a given model of motor vehicle, a variable number of electrical generator stator portions may be provided.

Abstract: An energy conversion and storage device (1) which comprises a magnetic rotor (5) and a stator (7) comprising one or more electric coils whereby electrical energy may be applied to and extracted from the device (1) when the rotor (5) is rotating relative to the stator (7) and means (13, 14, 15, 17) for electromagnetically suspending the rotor (5) whilst rotating relative to the stator (7), wherein the rotor (5) comprises a tubular body portion formed of a composite of fiber reinforced material and magnetic material emnbedded within the fiber reinforced material and the stator (7) is disposed inside the rotor (5) co-axially with the rotor (5) and extends along at least a major part of the length of the said body portion of the rotor (5).

Abstract: A sliding spoke rotor to hub attachment is provided. The hub is rotatably positioned about a stationary axial shaft. The hub includes a plurality of outwardly radiating spokes. The rotor includes a socket disposed between an end of said spoke and the rotor. The socket slidingly engages the end of the spoke in a radial direction.

Abstract: An UPS (uninterruptible power system) includes an UPS power conditioning unit that provides conditioned AC power to a critical load. The UPS power conditioning unit includes a variable speed drive that operates in response to AC utility power or to a standby DC input by providing a motor drive signal. The UPS power conditioning unit further includes a motor-generator that operates in response to the motor drive output by providing the conditioned AC power to the critical load. In response to an outage in the utility AC power, standby DC power is provided by a standby DC power source that includes a variable speed drive and a flywheel motor-generator connected to the variable speed drive. Both the UPS power conditioning unit and the standby DC power source are initially operated in response to the utility AC power, the flywheel motor-generator storing kinetic energy in a rotating flywheel.

Abstract: A flywheel system having permanent magnets 20 disposed on a flywheel 10 rotating about a shaft 12 is provided with a stator 28 having an outer diameter which is oriented concentrically and shaped conically within a similarly shaped inner diameter of the flywheel 10 (and the magnets 20) and the stator 28 is slidably and rotatably mounted to a shaft 30 thereby allowing a gap g.sub.1 between the stator 28 and the rotor/flywheel 10 to be adjustable. When energy is being provided to (spin-up) or extracted from (spin-down) the flywheel 10, the stator is automatically forced to the left (FIG. 1) due to torque on the stator 28, thereby causing the gap g.sub.1 to be small to provide strong electromagnetic interaction between the stator 28 and the flywheel 10. Conversely, when the flywheel 10 is freewheeling, the stator 28 is forced to the right by a spring 40 causing the gap g.sub.1 to increase to a distance large enough to minimize electro-magnetic drag on the flywheel 10.

Abstract: A power generator includes a fly wheel rotatably driven by a driving device, a plurality of magnetically repulsive magnets circularly disposed in an extension ring annularly formed on the fly wheel, a plurality of shuttle magnets circularly secured in a carrier ring positioned adjacent to the extension ring with the carrier ring rotatably engageable in a guiding-rail ring, and a plurality of coil windings circumferentially wound around the guiding-rail ring, each repulsive magnet having a front pole facing a rear pole of each shuttle magnet and the rear pole of the shuttle magnet having a polarity as same as that of the front pole of the repulsive magnet, whereby upon a rotation of the fly wheel to rotate the extension ring and the plurality of magnetically repulsive magnets secured in the extension ring, the shuttle magnets in the carrier ring will be rotatably repulsed by the magnetically repulsive magnets to induce current flowing through the coil windings wound on the guiding-rail ring for generating powe

Abstract: A rotor assembly comprising a rotor, starter pawls, and springs. The rotor has a permanent magnet and starter pawl mounting posts. The starter pawls are movably mounted on the posts. The springs are mounted on the posts biasing the starter pawls in first positions. The springs each have a middle section with a retaining section that engages the exterior of the post and hold the spring on the post during assembly of the rotor assembly.

Abstract: An engine has a flywheel which has a high peripheral speed even when the engine rotates at a low speed. The flywheel has a plurality of permanent magnets mounted on an outer circumference thereof and having alternately different magnetic poles. A stator is disposed in confronting relation to radially outer ends of the permanent magnets. Electric energy induced by the stator upon rotation of the flywheel is supplied to a rotary electric machine combined with a turbocharger to assist the turbocharger in supplying air under pressure to the engine when the engine rotates at low speed.

Abstract: An engine has a flywheel which has a high peripheral speed even when the engine rotates at a low speed. The flywheel has a plurality of permanent magnets mounted on an outer circumference thereof and having alternately different magnetic poles. A stator is disposed in confronting relation to radially outer ends of the permanent magnets. Electric energy induced by the stator upon rotation of the flywheel is supplied to a rotary electric machine combined with a turbocharger to assist the turbocharger in supplying air under pressure to the engine when the engine rotates at low speed.

Abstract: A magneto rotor includes a bowl-like aluminum body with an open end defined by an annular rim having an inner peripheral surface. A plurality of arcuate pockets are machined into the peripheral rim surface, each of the pockets extending between first and second radiused ends, the radius of curvature of the pockets being approximately equal to the radius of curvature of the rim. A light weight, high field-strength magnet, formed as an arcuate plate of a neodymium-iron alloy, is adhesively fixed in each of the pockets. Each of the magnets substantially conforms to the pocket in which it is seated, and extends between first and second radiused ends. The engagement between the radiused pocket ends and the radiused magnet ends restrains the magnets from dropping radially inwardly from the pockets should the adhesive fail. The magnets are restrained from moving axially out of the pockets by a retaining ring that covers the open tops of the pockets.

Abstract: A rotor for a generator includes a core made of a plurality of magnetic plates laminated with each other, a magnet received in a holding portion of the core, and a synthetic resin mold molded on the core in the circular disc shape. A pawl is rotationally supported on the resin mold by means of a support shaft, and a stopper is formed on the support shaft or the resin mold. The stopper allows the pawl to engage the resin mold but prevents the pawl from disengaging from the resin mold. In case a conical opening is formed, a tapered punch may be pushed into a central opening of the core, so that a conical opening and thickened portion are formed on the core. The core can be directly connected to a crank shaft.

Abstract: The invention relates to a generator arrangement, in particular, ignition systems for internal combustion engines. The arrangement comprises a multi-legged core of magnetically conducting material with the legs radially projecting towards a cooperating magneto flywheel, which exhibits a section with unsymmetrical magnetic flux. The legs carry uniformly wound windings and are connected in two groups in the case of a one-cylinder internal combustion engine. The one group comprises two windings interconnected such that they only deliver an induced voltage when passed by the unsymmetrical section. The other group delivers an induced sum voltage. The voltage of the first mentioned group controls the ignition process whereas the second group charges a capacitor, component of the ignition system.

Abstract: Rotor of a magnetomotive device has a discrete permanent magnetic and a ferromagnetic core disposed within an injection molded, synthetic plastic body in the form of a flywheel. The core is of integral, laminar construction and includes hub and counterweight portions and a pair of radially extending, circumferentially spaced arm portions. At their outer ends, the arm portions terminate in pole shoes with opposed, undercut edges to retain the discrete permanent magnet therebetween. Each of the arm portions has a laterally extending shoulder portion and, at their inner ends, connect to the hub by narrow neck or stem portions which are resiliently flexible. From the center of rotation of the rotor, the stem portions are each disposed along a given radius.

Abstract: An armature of a three-phase magneto for generating three-phase AC output has a core having a plurality of magnetic poles arranged in an annular array on the periphery thereof. The armature has three series winding circuits corresponding to the respective phases, each series winding circuit including series-connected windings wound on every three magnetic poles. The winding direction of the windings of one of the three series winding circuits is opposite to the winding direction of the windings of the other two series winding circuits. The armature also has three connection conductors for connecting ends of the three series winding circuits into a delta connection and providing output terminals of the three-phase AC output.

Abstract: Rotor of a magnetomotive device has a discrete permanent magnetic and a ferromagnetic core injection molded within a synthetic plastic body in the form of a flywheel. The core is of integral, laminar construction and includes hub and counterweight portions and a pair of radially extending, circumferentially spaced arm portion. At their outer ends, the arm portions terminate in pole shoes with opposed, undercut edges to retain the discrete permanent magnet therebetween. Each of the arm portions has a laterally extending shoulder portion and, at their inner ends, connect to the hub by narrow neck or stem portions which are resiliently flexible. From the center of rotation of the rotor, the stem portions are each disposed along a given radius.

Abstract: A flywheel magnet rotor assembly. The assembly comprises a core, a magnet, two pole shoes and a molded resin disk. The core is comprised of metallic nonferromagnetic material forming a general can shape with apertures through a first wall. The magnet is sandwiched between the pole shoes inside the can shape and portions of the pole shoes extend out the apertures. The molded resin disk substantially surrounds the core.

Abstract: An engine-igniting signal generation apparatus comprises a flywheel rotatable with the crank shaft of an internal combustion engine, a field magnet attached to the flywheel, and a plurality of pickup devices provided facing the field magnet to produce ignition signals in synchronism with the rotation of the flywheel. The cores of the pickup devices are formed by a substrate body of one piece; each coil wound around the cores connects to a terminal, to output the ignition signals, and is covered with an insulating material.

Abstract: A rotor is fitted on a rotational driving shaft of an internal combustion engine. Permanent magnets are arranged on the circumference of the rotor. Opposing the permanent magnets, a number of coils for charging a battery used for lighting, and a group of coils for charging a condenser used for ignition, are arranged on the stator core radially. The group of coils for charging the condenser are arranged on a number of salient poles extending along the axial direction of the stator. The coils for charging the ignition condenser generate two separate voltages at low and high rotational speeds of the engine.

Abstract: A rotor of a magnetic generator has a plurality of permanent magnets (13) disposed on an inner surface of a peripheral wall (11a) of a bowl-shaped flywheel (11). The permanent magnets (13) are held in place by a magnet-holding cylinder (14) having plural outward protrusions (14c) formed in a radial direction at a first open end and an outward flange (14e ) formed on a second open end thereof. Resin (15) is provided to fill empty spaces of this assembly so that the magnets (13), the magnet-holding cylinder (14) and the flywheel (11) are made of an integral piece thereby.

Abstract: A rotor in a magnetogenerator, having a boss member coupled onto a rotary shaft of an engine and a yoke jointed to a flange on the outer periphery of this boss member. A serration provided at one end thereof with a collar portion is formed on the outer periphery of the flange of the boss member. Another serration is formed on the inner peripheral surface of an opening formed in the bottom wall of the yoke, and both serrations are serration-jointed to each other by clinchingly finishing an end portion of the flange received in a recess formed at an end face of the opening in the yoke, whereby the brim, or lip, portion of the opening in the yoke is clamped between the collar portion and the clinchingly finished portion. The collar portion of the boss member, thus serration-jointed, is received in the recess formed around the brim portion of the opening in the yoke, to prevent the collar portion from protruding to the outside from the bottom wall surface of the yoke in the axial direction.

Abstract: An annular permanent magnet rotor (8) is mounted around and fixed to a crankshaft (4) of an internal combustion engine (2) and has a plurality of circumferentially spaced magnetic poles (14) of sequentially alternating north-south polarity type, and a pole (18) reversed out of the alternating sequence. A first fixed stator (24) is provided by an annular ring concentric to the rotor (8) and has a plurality of poles (26) for magnetic flux coupling with the permanent magnet rotor poles (14). A second fixed stator (48) is axially spaced from the first stator (24) and has a pair of poles (50, 52) for magnetic flux coupling with the rotor (8). A first sensor coil (40) around the first stator (24) outputs a timing angle signal. Processing circuitry produces a series of digital pulses having ANGLE-defining edges occurring at fixed angular increments of crankshaft rotation.

Abstract: In the rotor of a magneto generator, which has a magnet for generating electric power, the mechanical strength of the rotor is born by a metal core, and the metal core is connected to a resin molded disk by insert molding. The rotor is light and can bear the centrifugal force of high-speed revolution.

Abstract: A magneto rotor has a cup-shaped iron casing accommodating magnets disposed along and in contact with the inner peripheral surface of the casing. The magnets form a circumferentially discontinuous but generally circular annulus into which a generally annular magnet retainer member is forced through the open end of the casing to radially outwardly urge the magnets into face-to-face engagement with the casing inner peripheral surface, to retain the magnets in position therein. The magnet retainer member has an axially inner fixing section fixed to the casing bottom wall and ridges radially outwardly projecting from a cylindrical section of the retainer member into spaces between the magnets. When the magnet retainer member is forced into the annulus of magnets, the cylindrical section is radially outwardly deformed at the ridges.

Abstract: The synchronous machine comprises a rotor provided with permanent magnets arranged for orthoradial magnetic induction and which are disposed around the axis in such a way that two adjacent magnets have counter-direction inductions, pole-pieces deviating the said induction so that it becomes radial to the periphery and each of the pole-pieces being formed of half-poles separated by a split pin applying each of the half-poles against the adjacent magnet, and wherein each magnet and each half-pole is in a single block in axial direction, the edges of the flanges ensuring the cohesion in radial direction.

Abstract: A structure flywheel energy-storage device is disclosed comprising a rotatable flywheel mounted on a vertical shaft and provided with a bearing. The flywheel is in the form of a magnetic ring structure with a spacing element disposed between the ring structure and the shaft and with magnetic supporting structure to support the rotary magnetic ring structure. The use of the magnetic supporting structure enables the flywheel, once set in rotation with a given quantity of delivered energy, to rotate much longer than if purely mechanically supported.

Abstract: A combined alternator-compressor including a brushless excitation structure for the alternator. The magnetic flux field for the alternator is generated by a rotating permanent magnet ring structure and a stationary toroidal control coil which is arranged concentrically with and between the rotating permanent magnet ring and an alternator base. The control coil is mounted in additive and subtractive magnetic relationship with the permanent magnet ring for control of the magnetomotive excitation field of the alternator.

Abstract: A magneto generator for a motorcycle engine having a flywheel, in which a plurality of magnets are circumferentially arranged at equal intervals, a certain number of adjacent magnets have the same polarity at their inner surfaces, and N- and S-pole alternately appear at the inner surfaces of the remaining magnets. A stator arranged within the flywheel includes one large pole core and a plurality of small pole cores, each of which extends radially outwardly to face to the inner surfaces of the magnets at their T-shaped pole pieces formed at their forward ends. A capacitor charging coil is wound on the large pole core so that a single pair of positive and negative halfwave voltages are generated at the coil to perform a single spark ignition for each revolution of the magneto generator.

Abstract: An inertial energy storage device including a synchronous rotary electrical machine for bidirectional conversion between mechanical and electrical energy including: a stator having two axially spaced sets of circumferentially spaced teeth; field excitation means disposed on the stator to provide an axially polarized magnetic field; stator windings including a plurality of coils, each of which surrounds at least one tooth from each set; and a rotor having a plurality of circumferentially spaced teeth facing the stator teeth, and a circumferential flywheel mass radially spaced from its rotational axis; and a motor control circuit including sensor means for sensing the position of the rotor relative to the stator; means, responsive to the sensor means, for generating a waveform for driving the machine when it is operating as a motor; a voltage control circuit for controlling the amplitude of the waveform for driving the machine; and a current control circuit for controlling amplitude of the current provided to t

Abstract: A starter dynamo comprises a d.c. motor having a hollow armature rotary shaft, a rotary output shaft passing through the hollow armature rotary shaft and connected to the armature rotary shaft through a one-way clutch, a transmission mechanism provided at one end of the rotary output shaft to keep connection of the rotary output shaft to a crank shaft of an engine for revolution, and a generator provided with a flywheel magnet disposed at the other end of the rotary output shaft.

Abstract: A flywheel assembly for a small internal combustion engine including a permanent magnet structure secured to the flywheel near the outer periphery thereof and for cooperating with the ignition stator to induce spark creating voltages therein. The permanent magnet structure includes two pole shoes and a permanent magnet captured between shoulder portions of the pole shoes. A non-magnetic spacer plate includes two protuberances and is inserted between the flywheel and the magnet group consisting of the pole shoes and the permanent magnet. The protuberances cooperate with outer peripheral surfaces of the pole shoes. The magnet group is held accurately and rigidly in position by axially compressing a pair of rivets which pass through the flywheel, the plate and the magnet group, whereby the rivets are radially expanded to tightly fill the respective apertures through which they pass. The protuberances on the plate prevent the pole shoes from pivoting when the pole shoe outer surfaces are machined.

Abstract: A magnetic structure for use in a chain saw or edge trimmer ignition system or the like where the ignition system includes a flywheel having a plurality of cooling fins disposed around the peripheral portion thereof and at least one magnetic structure embedded in the periphery, a magnetically permeable core disposed adjacent the flywheel, a coil wound on the core and connected to an ignition circuit so that a voltage waveform is induced in the coil and applied to the circuit each time the magnetic structure passes the coil, the magnetic structure including (a) a magnet having first and second end faces and (b) first and second pole pieces which respectively engage the end faces, the pole pieces being asymmetrical in a plane perpendicular to the plane of the flywheel to thereby effect concentration of the flux produced by the magnet and coupled to the core by the pole pieces to thereby permit a reduction in size of the magnet without substantially lessening the energy in the voltage waveform applied to the ign

Abstract: A scheme for mounting a permanent magnet group on the flywheel of a small internal combustion engine to provide the moving portion of an ignition system for such an engine is disclosed wherein the engine flywheel is formed of cast iron or similar ferromagnetic material and the magnet group is magnetically isolated from that flywheel so as to minimize short circuiting of the magnet group flux. A generally flat region of the flywheel receives a spacer or plate formed from aluminum or a similar substantially non-magnetic material such as zinc with that plate sandwiched between the flywheel and the magnet group by a pair of aluminum or similar non-magnetic material rivets passing through the flywheel plate and magnet group. The magnet group is held accurately and rigidly in position by upsetting the rivets in such a manner as to axially compress and therefore radially expand the rivet material so that the rivets tightly fill the respective apertures through which they pass.

Abstract: An ignition magneto having an improved primary wiring assembly that consists of a plastic bobbin having a generally rectangular configuration and composed of a pair of end flanges connected together by a pair of side walls and a pair of end walls. The side edges of each wall are spaced from the side edges of adjacent walls, to provide a gap or slot at each corner of the bobbin. A wire is wound in a plurality of turns around the walls and extends across the slots. One end flange is provided with grooves within which the free ends of the wire are gripped. The primary winding assembly is positioned in a cup-shaped casing around a central upstanding chimney which extends upwardly from the bottom of the casing. After installing a transistor and trigger coil, as well as a secondary winding around the primary winding assembly, the components are potted in the casing with a thermosetting resin.

Abstract: A magneto rotor assembly is disclosed in which a magnet is clamped in position between a pair of pole pieces within a cavity in a rotor. The pole pieces are provided with at least one tapered surface which engages a or the corresponding tapered surface(s) of the rotor cavity to prevent movement of the pole pieces and magnet. A fastener is also provided to hold each pole piece in engagement with the rotor cavity.

Abstract: In order to increase the power output of a magneto generator without causing additional undesired sparks to be generated in the ignition system, a plurality of permanent magnets each having associated pole pieces is arranged around the periphery of a magnet wheel. The ignition armature and at least one additional armature are fixedly mounted so that, during rotation of the wheel, the pole pieces interact with the legs of an E-shaped core in each of the armatures. However, the polarity of the permanent magnets is such that only the first of these magnets causes the generation of a spark in the ignition system. The polarity of the additional permanent magnets is such that no spark is induced when they pass by the ignition armature during rotation of the wheel. Since all three magnets, regardless of the polarity, are active in inducing AC voltages in the auxiliary armature windings, the power output of the latter is increased.

Abstract: A method is disclosed for manufacturing a flywheel magneto of the radial magnetic flux type for motor bicycles, motor scooters and the like, which comprises the steps of forming a sub-assembly comprised of a ring, the magnets, the pole shoes by scotching said ring on a plurality of wedges placed around a cylindrical body whereafter the pole shoes and an inner ring of a metallic nonmagnetic material are positioned and a punch rams all these component parts forcibly together. Finally, the sub-assembly so composed is surrounded by a casting of a nonmagnetic material.

Abstract: A magneto flywheel includes arcuate ceramic magnets of non-uniform radial thickness. A rotor for the flywheel is made of soft material. The magnets of the magneto flywheel have a set of radial poles of alternating polarity, and an other set of opposite poles directed toward the cylindrical periphery of the magneto rotor. A ferromagnetic band of deflectible material with the surface projection is disposed between the rotor and the magnets.

Abstract: The laminated stator core for an engine ignition system includes in addition to that ignition system an arrangement for charging the storage battery of an internal combustion engine powered device during engine operation with a charging coil surrounding one leg of the ignition stator core, a capacitor in parallel with the coil, and a rectifier coupled to the charging coil for conveying a varying unidirectional current to the battery. The ignition system may be of the type having a three legged E-shaped laminated stator core and a flywheel supported permanent magnet with charging coils being positioned on each of the outer E legs with diodes in series with each charging coil and means connecting the two coil-diode series circuits in parallel with one another and to the battery for providing a pair of sequential primary charging current pulses to the battery during each revolution of the flywheel. A fourth laminated stator core leg supporting a charging coil may be employed in some circumstances.

Abstract: The laminated stator core for an engine ignition system includes in addition to that ignition system an arrangement for charging the storage battery of an internal combustion engine powered device during engine operation with a charging coil surrounding one leg of the ignition stator core and a rectifier coupling to the charging coil for conveying a varying unidirectional current to the battery. The ignition system may be of the type having a three legged E-shaped laminated stator core and a flywheel supported permanent magnet with charging coils being positioned on each of the outer E legs with diodes in series with each charging coil and means connecting the two coil-diode series circuits in parallel with one another and to the battery for providing a pair of sequential primary charging current pulses to the battery during each revolution of the flywheel. A fourth laminated stator core leg supporting a charging coil may be employed in some circumstances.

Abstract: A magneto generator includes a magnet wheel 11 which carries a magnetic system. The magnetic system consists of a plurality of claw shaped pole pieces (12,13) which form extensions of two pole plates (14,15). A plate shaped permanent magnet 16 is positioned between the pole plates in a direction perpendicular to the pole wheel axis. The pole pieces arranged along the periphery of the magnet wheel are extensions of two pole plates each of which abuts one of the pole faces of the plate shaped permanent magnet. At least one of the pole plates has an extension which compensates for the unbalance of weight caused by the pole piece extensions.

Abstract: The laminating stator core for an engine ignition system includes in addition to that ignition system an arrangement for charging the storage battery of an internal combustion engine powered device during engine operation with a charging coil surrounding one leg of the ignition stator core, a capacitor in parallel with the coil, and a rectifier coupled to the charging coil for conveying a varying unidirectional current to the battery. The ignition system may be of the type having a three legged E-shaped laminated stator core and a flywheel supported permanent magnet with charging coils being positioned on each of the outer E legs with diodes in series with each charging coil and means connecting the two coil-diode series circuits in parallel with one another and to the battery for providing a pair of sequential primary charging current pulses to the battery during each revolution of the flywheel. A fourth laminated stator core leg supporting a charging coil may be employed in some circumstances.

Abstract: A brushless motor actuated by a predetermined frequency and driven at constant speed with less wow and flutter component in accordance with a pulse signal of the frequency applied. The motor has a rotor enclosed in a stator, the latter having driving windings. The rotor includes a rotor shaft and a flywheel connected to the shaft. The flywheel is housed in a motor case.

Abstract: Battery charging apparatus, and the battery to be charged, are mounted on the end face of a rotating roll. In one embodiment stationary magnets are mounted adjacent the paths of travel of ferrite rods which carry electrical windings. In another embodiment a hollow torus carrying an electrical winding is mounted concentric of the axis of rotation of the roll and has a freely-falling magnet therein. In another embodiment the torus is replaced by a plurality of hollow elongate carriers each carrying a winding and each having a freely-falling magnet therein.

Abstract: The laminated stator core for an engine ignition system includes in addition to that ignition system an arrangement for charging the storage battery of an internal combustion engine powered device during engine operation with a charging coil surrounding one leg of the ignition stator core and a rectifier coupled to the charging coil for conveying a varying unidirectional current to the battery. The ignition system may be of the type having a three legged E-shaped laminated stator core and a flywheel supported permanent magnet with charging coils being positioned on each of the outer E legs with diodes in series with each charging coil and means connecting the two coil-diode series circuits in parallel with one another and to the battery for providing a pair of sequential primary charging current pulses to the battery during each revolution of the flywheel. A fourth laminated stator core leg supporting a charging coil may be employed in some circumstances.

Abstract: An ignition system for a small internal combustion engine is disclosed, including a magnetic trigger rotor (33) having two magnets (45) disposed in arcuate slots (43), with a radial slot (41) disposed between the arcuate slots (43) for causing an abrupt flux reversal in a pickup coil (35) to generate an initial ignition timing signal, and two or more holes (47), (49) adjacent the radial slot and made in the direction of the axis of rotation of the rotor, for causing flux distortions which becomes significant at higher rotational speeds, to give a step-type ignition advance.

Abstract: A rotor assembly having wedge-shaped permanent magnets and anchors with undulating sides for attaching the rotor hub to the pole bodies.

Abstract: A pump such as a vehicle air conditioner compressor has a compressor shaft, a continuously engine-driven flywheel and means such as an electromagnetic clutch for selectively coupling the flywheel to the shaft to operate the pump. The flywheel also provides a permanent magnet field which field rotates with the flywheel and induces in the windings of a relatively stationary annular stator assembly an electric voltage in response to the rotating magnetic field. The pump shaft, annular clutch actuating coil, annular stator assembly, and permanent magnet flywheel are all generally concentrically disposed and in the order stated. The flywheel is driven any time that the engine is running thereby inducing a voltage in the stator windings and that flywheel also drives the exemplary compressor when the clutch is actuated.