Abstract: A rotor assembly having a hub with rectangularly-shaped tongues and wedge-shaped permanent magnets.

Abstract: A thrust preventive device for the output shaft of an electric motor comprises an electric motor having one end face from which an output shaft is projected and a rotating force transmitting member secured outside the motor to a portion of the output shaft which is projected from the one end face of the motor. The one end face of the motor has a recess therein. The rotating force transmitting member comprises a fly-wheel and a pulley. The fly-wheel has one end face which opposes the one end face of the motor and another face which is connected to the pulley. A projection which is formed of iron is provided on the one end face of the fly-wheel and projects toward the one end face of the motor and into the recess. The projection is attracted in one direction taken along a central axis of the output shaft by the magnetic force from the permanent magnets which are located in the motor housing to rotate the output shaft.

Abstract: A joining construction between a flywheel of a flywheel magneto and a boss for mounting thereon a shaft comprises a joining portion formed on the periphery of the boss, and a joining portion of the flywheel surrounding the periphery of the boss. The joining portion of boss has an annular groove defined by a rugged bottom and both sides one of which is inclined along metal flow. The joining portion of the flywheel has the same shaped groove as one of the boss. Two the joining portions define an annular gap in which a joining member is disposed deformed by pressworking. The joining member inserted into the annular gap has the same shearing strength as the flywheel when an axial force is applied to the flywheel magneto.

Abstract: A rotor having wedge-shaped permanent magnets and cushions between the magnets and their support members.

Abstract: Disclosed herein is a rotary pulse generator including an armature having a two-magnet assembly including spaced pole pieces defining a pair of spaced gaps, an armature plate including a charge core and charge coil mounted thereon, and a trigger core and trigger coil mounted thereon, said trigger core being separate from said charge core but located in proximity to said charge core so that, at a given armature speed, said trigger coil produces a repeating series of trigger pulses including a first major voltage pulse of one polarity and of a major magnitude closely followed by a second minor voltage pulse of opposite polarity and of a minor magnitude substantially less than the major magnitude, the repeating series of trigger pulses being produced in response to the two-magnet assembly sequentially rotating past the trigger core and the charge core.

Abstract: An annular magnet assembly for a dynamoelectric machine includes a plurality of arcuate permanent magnets disposed in an annular array and a frame member of a non-magnetic material for rigidly connecting the magnets together. The magnets are disposed in end-to-end abutment to form the annular array, both ends of each magnet being cut to form a recess in the inner or outer peripheral surface of the annular array at the respective abutments of the magnets. The frame member comprises a pair of annular portions which tightly engage the opposite sides of the annular array and ledge portions extending through the recesses to connect the pair of annular portions together.

Abstract: A rotor for a magneto generator including a plurality of permanently magnetized magnets radially disposed in the inner peripheral surface of an iron cup-shaped flywheel. The rotor has a ring-shaped magnet case formed with a plurality of magnet mounting portions for accommodating the magnets and has a plurality of wedge mounting portions provided between the magnet mounting portions for accommodating a plurality of wedges adapted to press and hold the magnets in place.

Abstract: A combined pump and generator arrangement for use in a vehicle having an engine as the prime mover is disclosed and includes a pump housing with an axially extending actuating shaft and a rotatable member to be driven by the engine to rotate about that actuating shaft with the rotatable member including a fan and a pulley as well as a magnetic arrangement for providing a rotating magnetic field when the rotatable member is driven by the engine. An annular stator assembly is fastened to a face of the pump housing and has windings for providing a voltage in response to the rotating magnetic field. The actuating shaft and annular stator assembly are concentrically disposed with the stator assembly lying intermediate the actuating shaft and the magnetic arrangement of the rotor. The pulley, stator and magnetic arrangement and the fan are supported progressively more remote from the pump housing face.

Abstract: A magneto rotor is formed of a hollow cup-shaped cylindrical drum adapted to be mounted on the flywheel of a combustion engine. A plurality of discrete cylindrically segmental permanent magnets are angularly equispaced about the interior of the drum and radially overlying the inner surface of each of these magnets is a magnetically permeable pole piece also of cylindrical segmental shape. The gaps between each of the inductors formed by a respective magnet and pole piece are filled by nonmagnetic holding blocks having lateral flanks tightly engaging the magnets and pole pieces. An adhesive tightly secures the magnets, pole pieces and blocks in the drum. The arrangement is assembled by fitting in the holding blocks and magnets and thereafter driving the pole pieces tightly in place between the holding blocks.

Abstract: An electronic ignition system for use with a flywheel having a magnet comprises a unitary core carrying a trigger coil, an ignition coil and a charging coil, the latter being coupled through a charging rectifier and a storage capacitor to the ignition coil, the transient oscillations that are created by sparking discharge being damped in the core portion carrying the ignition coil, and the windings of the ignition coil being so directed and of such number that induced voltages therein fall below the sparking voltage of the spark plug during the flux alternating sequence produced by the passage of the magnetic poles.

Abstract: Rotor for a magnetomotive device in the form of an annular casting having a cavity or slot formed in the periphery thereof. The cavity includes locating surfaces. A permanent magnet is held in clamping relation within said cavity between a pair of pole pieces which include arcuate pole faces coaxial with the rotor. Retaining pins disposed in registered recesses of the cavity and pole pieces hold said pole pieces in said slot and urge surface portions thereof radially against said locating surfaces which are oriented to cause the pole pieces to exert clamping forces against the magnet disposed therebetween with the pole faces disposed in coaxial relation in the rotor.

Abstract: Disclosed herein is an ignition system for an internal combustion engine including a capacitor charged by charge power source, a thyristor for discharging the capacitor through the primary of an ignition coil and a magneto AC generator including a signal generating winding for supplying a gate signal to the thyristor. The ignition system is characterized in that rate of change of the magnetic flux interlinked with the signal generating winding has at least two successive local maximum points, so that at least two successive peaks of the same polarity appears in the voltage induced in the signal generating winding by the magnetic flux variation. The waveform of the voltage induced is utilized for ignition angle advance.

Abstract: An engine driven rotor has pairs of arms of different lengths passing by the stator core teeth with respectively different clearances. The stator teeth carry pick-up coils that are connected in series-aiding relation. Although the stator teeth are uniformly spaced, the rotor arms, that are equal in number to the stator teeth, have the longer pair angularly offset from equiangular relation to the shorter pair in such a way that when the rotor moves in its normal direction, a weak pulse is followed by a stronger one and this pattern is repeated four times per revolution. The output of the coils is supplied to a threshold switch, which will be triggered on the second of the pair of pulses at low rotation speeds of the rotor and on the first of the pair of pulses at high speeds.

Abstract: A flywheel magneto generator is disclosed, which includes a flywheel rotor, a stator disposed in the flywheel rotor and a signaling stator disposed outside said flywheel rotor. The flywheel rotor comprises a bowl-like flywheel, a plurality of arcuate permanent magnets engaged at the ends thereof with each other and aligned on the inner surface of the peripheral wall of the flywheel, and securing means for securing the magnets to the flywheel. The invention is characterized in that the securing means comprises a single wedge-like magnetic member interposed between the opposing ends of a pair of the permanent magnets and a screw coupling for coupling said wedge-like magnetic member to the peripheral wall and for urging said wedge-like magnetic member radially outwardly. The screw coupling is provided with an extending member of a magnetic material extending through the peripheral wall of the flywheel, magnetically insulated from the peripheral wall and having an outer end exposed outside the flywheel.

Abstract: A magneto for a motor vehicle includes a flywheel having an exciting source and adapted to rotate in timed relation to the engine, and an armature to be excited by the exciting source. It also comprises an elastic steel cover on at least the inner surfaces of its magnet elements, so that the elements are pressed against, and positioned with respect to, the inner surface of the rim of tray-shaped flywheel.

Abstract: An apparatus for storing and transmitting mechanical energy which utilizes a flywheel having a plurality of flywheel magnets located about the periphery thereof. An actuator is disengagably coupled to the flywheel for supplying rotary kinetic energy thereto. A plurality of coacting magnets are spaced about the circumference of the flywheel for interacting with the flywheel magnets. A linkage system is provided between the coacting magnets and the flywheel magnets for moving the coacting magnets in a timed relation with the flywheel magnets for imparting further rotation to the flywheel. A power take off is also coupled to the flywheel for removing kinetic energy stored therein.

Abstract: A rotor structure for a magneto generator is disclosed which comprises a yoke of cup-like shape consisting of a cylindrical wall and a side wall extending from one end of the cylindrical wall, a plurality of magnets provided by permanent magnets disposed on the inner surface of the cylindrical wall of the yoke in a relation spaced apart by a predetermined distance along the circumference of the cylindrical wall. The magnets are maintained in the predetermined positions by a pair of spaced annular holding plates having respective surfaces facing each other to make area contact respectively with and sandwich the magnets in a direction of the axis of the yoke, and a cylindrical holding plate acting to press the magnets against the inner surface of the cylindrical wall of the yoke by making area contact with the inner surfaces of the magnets.

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.

Abstract: A two-cycle engine in such as an outboard motor includes an engine shaft and a flywheel mounted on the shaft and having an inner cylindrical hub portion. A rubber-like magnet strip is adhesively attached about the hub portion with an outer protective shield adhesively bonded to the strip. The strip includes upper and lower magnetic areas which are oppositely and radially magnetized to establish an axially directed field adjacent the outer periphery of the strip. A triggering coil unit includes a C-shaped core with the poles of the core radially aligned with the upper and lower areas of the magnet strip such that the field passes therethrough. The strip is magnetized after assembly by an electromagnetic unit having a semi-circular core with a U-shape cross-section aligned with the strip.

Abstract: An energy storage device comprises a flywheel rotor in the form of a spokeless ring of filamentary, composite material rotating around a ring-shaped stator. Along the inner rim of the rotor, there is a layer of magnetically soft iron that forms homopolar, salient pole pairs. An ironless armature winding mounted on the stator extends into an air gap formed between the pole pairs. To bring the rotor up to speed, alternating current is supplied to the armature winding using electronic commutation. The armature current interacts with flux in the air gap to create a force acting to rotate the rotor. During coast down, current may be tapped from the rotor using commutation diodes. The rotor and stator are maintained in axial alignment to each other by magnetic flux produced by a permanent magnet in the stator. An electromagnet incorporated in the stator modulates permanent magnet flux to compensate for any eccentricity between the stator and the rotor that may develop during rotation.

Abstract: Disclosed herein is an ignition system comprising a coil mounted on a core having first and second spaced legs, together with a rotor mounted for rotation, under normal operating conditions, in one direction relative to the core such that any point on the periphery of the rotor passes the first leg prior to the second leg. The rotor includes a magnet having arcuately spaced first and second poles and first and second pole shoes extending respectively from the first and second poles.

Abstract: Four pole pieces embedded in the cylindrical periphery of a non-magnetic rotor disk are connected with each of a number of magnets embedded in the disk in circumferentially distributed positions spaced from the rotor shaft and from the disk periphery. Of these pole pieces, one circumferentially interleaved pair is connected with one pole of the magnet by a magnetically conducting yoke strip embedded in one circular face of the disk and the other pair is similarly connected with the other pole of the magnet. The spacing between the first and second pole piece is equal to the spacing between the third and fourth and less than that between the second and third, the latter spacing being equal to the spacing between groups of pole pieces associated with different magnets, for the case of a uniformly timed firing sequence of a multicylinder engine.

Abstract: A magneto-alternator has a plurality of alternator coils for lighting or the like and a main ignition coil for a breaker-point ignition. Stator laminations are arranged so that the ignition coil is between two alternator coils and each coil is effectively on an E-shaped core with an outer leg of each E-shaped core being shared with an adjacent coil. The flywheel has a plurality of ceramic magnets having a high potential energy so that a high alternator output is developed. The center core leg of the E core on which the ignition coil is mounted has a large air gap relative to the air gaps at the other core legs to compensate for the high energy of the magnets and thereby limit current at the breaker points. The large air gap also makes the magneto output insensitive to production tolerances in the air gap.

Abstract: A capacitive discharge ignition system having a charge coil and an ignition coil including primary and secondary windings wound on a common stator structure. The charge coil is coupled to the primary winding of the ignition coil by an SCR and a main capacitor such that the capacitor is first charged by the charge coil and then discharged through the SCR into the primary winding of the ignition coil when the SCR fires. During discharge of the capacitor, the charge coil also supplies current to the primary winding of the ignition coil. A shorted turn is located on one leg of the stator structure and a diode is connected in parallel with the charge coil to reduce the maximum peak potential supplied by the charge coil to reduce the maximum potential rating requirements of the ignition circuit components.

Abstract: A breakerless condenser discharge ignition system for an internal combustion engine and excited by a rotating permanent magnet, consists of a single module, containing a number of windings and electrical components, mounted on one pole of a ferromagnetic core for producing high voltage output pulses for firing an associated spark plug.

Abstract: This invention provides an improvement in a flywheel magneto having a thyristor controlled capacitive ignition system including a flywheel having permanent magnets and at least one cooperating coil core which has three pole legs and at least one charging coil and one trigger coil. The improvement therein comprises a charging coil arranged on the intermediate pole leg of the coil core and a trigger coil being arranged on the last pole leg when viewed in the direction of rotation of the flywheel.

Abstract: A permanent magnet field means for use in a dynamoelectric machine comprises a magnet ring received in a supporting ring of ferromagnetic material. The magnet ring includes a circular array of arcuate magnets and a carrier of non-magnetic material in which the magnets are fixedly embedded. The magnet ring has a single axially extending gap located between the adjacent ends of two neighboring magnets. A spreading element placed in the gap spreads the magnet ring into tight engagement with the supporting ring. In some cases, this expansion of the magnet ring is used by itself to hold the magnet ring to the supporting ring in the finished device. In other cases, an adhesive is used between the supporting ring and the magnet ring and the expansion of the magnet ring is used to hold the magnet ring tightly to the supporting ring until the adhesive sets, the adhesive thereafter being the principal agent fixing the magnet ring to the supporting ring.

Abstract: A signal source for use in a breakerless ignition system for an internal combustion engine provided outside a bowl-like flywheel of a flywheel type magneto generator, but cooperating with at least one of a plurality of permanent magnets in said magneto generator. The signal generator comprises timing pole means with one end thereof connected to a pole piece of the permanent magnet and with the other end radially extending through and exposed exterior of the cylindrical wall of the bowl-like flywheel in a spaced relationship from the magnet and signal coil means disposed closely adjacent to and outside of said bowl-like flywheel so that said coil means is interlinked with magnetic flux through said timing pole means.

Abstract: An ignition system for use with spark ignited engines wherein the ignition system is compact and mounted beneath the associated flywheel. The ignition system includes a manually actuated timing ring for manually advancing the firing point, and includes a rotor essentially in the form of a spiral having a discrete discontinuity on its periphery for providing enhanced safety features.

Abstract: For an internal combustion engine, there is provided an electrical power generator system and an electronic ignition system both disposed under the flywheel casing. Permanent magnet means provide a rotating magnetic field for the generating coils of the generator system and the charging coils of the ignition system, there being a separate trigger magnet for creating a magnetic field for a trigger coil of the ignition system. A shielding plate of ferromagnetic material is fixedly disposed between the permanent magnet means and the trigger magnet to shield the trigger coil magnetically from the field of the permanent magnet means whereby it will respond only to the field from the weaker trigger magnet. Preferably, the shielding plate can be angularly adjusted and supports the trigger coil to enable adjustment of timing.

Abstract: A flywheel type magneto generator for a rotary engine comprising a stator including generating coil and a rotor including a flywheel connected to the output shaft of the rotary engine and magnet field mounted on the flywheel, characterized by said flywheel of said rotor having balance weight mounted thereon whereby the output shaft of the rotary engine is balanced in weight.

Abstract: A flywheel alternator for use with an electronic ignition system of an internal combustion engine. The flywheel has a rotor with an odd number of circumferentially located permanent magnets each of substantially the same size and shape. The radially inward pole faces of adjoining pairs of the magnets are of opposite polarity except for one pair which is of the same polarity. At least one stationary trigger coil is positioned to form magnetic circuits with the rotor magnets by bridging alternate ones of the magnets as the rotor rotates. A unique trigger pulse suitable for activating an electronic ignition system is generated only once each flywheel revolution. A stationary power coil has a length to bridge consecutive ones of the magnets to provide power to run other electrical appliances.

Abstract: In one embodiment, a capacitive discharge ignition system has a charge coil and an ignition coil including primary and secondary windings wound on a common stator structure. The charge coil is coupled to the primary winding of the ignition coil by an SCR and a main capacitor such that the capacitor is first charged by the charge coil and then discharged through the SCR into the primary winding of the ignition coil when the SCR fires. During discharge of the capacitor, the charge coil also supplies current to the primary winding of the ignition coil. The SCR may be fired by a triggering circuit which includes a capacitor network connecting the gate of the SCR to the charge winding and main capacitor or through a breakdown effect of the SCR absent the provision of a triggering circuit. The circuit arrangement obviates the need for the usual charging diode between the charging coil and the main capacitor. Several embodiments of triggering circuit for the SCR are disclosed.

Abstract: A plurality of stator core rings are produced, each having circumferentially spaced pole teeth arranged symmetrically to a diametral plane. Certain of the rings are wound with two like sets of windings of wire of one gage, each set confined to its own side of said plane. The remaining rings are similarly wound, but with wire of a different gage. Every ring is then severed on its said diametral plane, thus forming stator elements of two kinds that can be assembled to engines singly or in pairs, as needed.