Abstract: The several embodiments of the self-generating breakerless ignition system disclosed herein are each comprised of a rotor structure with a permanent magnet which induces voltages in a plurality of windings, three cascaded semi-conductor switching elements to control the current in the windings, a trigger signal which is provided by one of the windings and which activates the switching elements at a predetermined time, and means which simultaneously supply positive and negative biasing to the switching elements to enhance the switching procedure.

Abstract: An electronic magneto ignition for internal combustion engines has a permanent magnet mounted on the engine fly wheel and rotating therewith. A magnetic field coil has a primary winding and a secondary winding in which ignition current and ignition voltage, respectively, are produced during the passage of the permanent magnet. A switching transistor is connected in parallel with the primary winding and in parallel with a diode poled opposite to the emitter-collector path of the transistor. An electronic control circuit blocks the switching transistor at the desired ignition time so that the primary circuit is interrupted and the high voltage for the combustion of the fuel is produced in the secondary winding. In the electronic control circuit, a parallel circuit consisting of a first control coil, which has a resistor in series therewith, and a thyristor is connected from the base to the emitter of the switching transistor.

Abstract: The present invention discloses an ignition system for internal combustion engines. The ignition system is particularly applicable to such engines including a magneto.The ignition system includes a semi-conductor ignition circuit in which a first transistor has its collector-emitter conduction path connected in series with the primary winding of an ignition coil assembly. A resistor is connected between base and collector of the first transistor to permit it to conduct. A control circuit connected between the base of the first transistor and the primary winding, turns the first trnasistor off when it is desired to interrupt the primary winding current.The ignition system also includes a magneto ignition coil assembly which has a low inductance primary winding having a relatively low number of turns. The coil assemblies of the present invention are generally unsuitable for use with conventional mechanical breaker points.

Abstract: An engine flywheel forms the common rotor for a dual alternator unit having a first ignition alternator for the ignition circuit and a second power alternator for battery charging and providing other auxiliary power. The rotor includes first and second closely, axially spaced permanent annular magnets. An ignition and trigger coil assembly is aligned with one magnet and an auxiliary power coil with the second. The power magnet and coil include a substantial number of magnetic poles and coils to produce a significant power output. In a two cylinder engine, the ignition magnet has two radially and oppositely polarized poles. A pair of ignition capacitor charging coils are spaced by 180.degree. with a trigger coil mounted therebetween and circumferentially movable to adjust the timing. First and second ignition capacitors are connected to the charging coil and to the spark plugs and are alternately charged and discharged.

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: The embodiments of the breakerless magneto device disclosed herein have a rotor with a permanent magnet imbedded in the periphery thereof which acts in cooperation with the first and second magneto cores to generate a varying flux field in the cores. The first core has a first winding mounted thereon and the second core, which is mounted next adjacent the first core but insulated therefrom, has a second winding mounted thereon. The first winding therefore encompasses the first core, the second core, and the second winding. The second winding provides a trigger pulse to a solid state device which interrupts the current in the first winding, at or near its maximum value, thereby collapsing the flux field in the first core. This causes a high voltage to be induced in the secondary winding of the magneto coil which is applied to the spark gap for fuel ignition. Stable and proper spark timing is achieved with this device.

Abstract: An ignition circuit for use in an internal combustion engine comprises a magnet generator mechanically connected to a crank shaft of the engine. A first transistor is turned on and off by an alternating voltage signal from the magnet generator. A power transistor forms a closed circuit in cooperation with a high voltage transformer and a current source. The power transistor is controlled by a control signal from the first transistor so as to form a primary current which is abruptly cut off. The transformer induces a high voltage which is supplied for a spark plug in response to abrupt interception of the primary current. A delay element composed of a resistor and a capacitor is connected to a base of the first transistor.

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: 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: An ignition system for a small internal combustion engine is energized by an alternator which is rotatably driven in association with the engine, and ignition pulses are supplied to the engine in timed relation with the movement of a plurality of different pistons in response to trigger signals generated by a trigger mechanism. The ignition pulses are produced by a capacitive discharge ignition circuit having a pulse transformer associated with each of the different pistons, and the energization of each pulse transformer is controlled by a corresponding switch which is actuated by a trigger signal generated in an associated trigger coil by the rotational movement of a magnetic trigger rotor driven in association with the engine. The trigger rotor carries magnetic means in association with an outer member of magnetically conductive material and having an eccentric configuration defining an intervening air gap with the trigger coil which varies with the movement of the trigger rotor.

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 signal generator for use in a breakerless ignition system for an internal combustion engine, comprising a magnet rotor rotatable in synchronism with said internal combustion engine and a stator including a plurality of signal coils and a comb-like magnetic core member disposed adjacent to said rotor and having a plurality of teeth-like core portions around which said signal coils are wound, respectively, and a common yoke magnetically connected to said core portions, said signal coils constructed so that incremental voltages are established thereacross from the most advanced position toward the most retarded position and said signal coils divided into at least two series connections of at least alternate signal coils. Each series connection of signal coils has a diode connected in series to the corresponding series connection and the series connections of signal coils are arranged in a parallel manner.

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: Disclosed herein is a rotary internal combustion engine comprising housing means defining, in series, first, second, third and fourth trochoid shaped rotor cavities in aligned relation to each other, a rotatably mounted crankshaft including, in series, first, second, third and fourth eccentric portions respectively extending through the first, second, third and fourth cavities, and with the first and fourth crankshaft eccentric portions aligned with respect to each other and with the second and third crankshaft eccentric portions aligned with respect to each other at an angular spacing of 180.degree.

Abstract: The invention relates to a breakerless ignition system with a magneto supply for use in an internal combustion engine. The system includes a transistorized circuit for interrupting the current flow in the primary winding of the coil to thereby produce the firing voltage in the secondary which is connected to the spark plug. The circuit includes either a single transistor, or two transistors in a Darlington arrangement, connected in series in the circuit of the primary winding. A switching transistor is connected to the control electrode of either the first transistor or the Darlington pair to be adaptable to turn it off. A first resistor has one end connected to the base of the switching transistor. A parallel resistor-capacitor combination is connected in series with a further resistor, and the serial combination is connected in parallel with the Darlington arrangement or the single transistor.