Abstract: An ignition control apparatus, e.g., for an internal combustion engine, includes a rotational speed calculation unit that calculates a rotational speed of an alternating current generator. A rotor of the alternating current generator is driven to rotate in synchronization with reciprocating motion of a piston of the internal combustion engine. An ignition timing determination unit determines an ignition timing of the internal combustion engine based on the rotational speed calculated by the rotational speed calculation unit. An ignition control unit supplies electric power to an ignition coil such that the internal combustion engine is ignited at the timing determined by the ignition timing determination unit.

Abstract: An ignition system includes a primary coil, a secondary coil, a first switch, a second switch, a third switch, a diode, and a switch control section. In the primary coil, a power supply is connected to a contact point between a first winding and a second winding. The secondary coil is magnetically coupled to the primary coil. The first switch is connected in series with the first winding. The second switch is connected in series with the second winding on the opposite side from the contact point. The third switch is connected in series with the second switch. The diode includes an anode connected between the second switch and the third switch and a cathode connected to the contact point. The switch control section controls opening and closing of each switch.

Abstract: In at least some implementations, an auxiliary power supply in an ignition system for a light-duty combustion engine includes a first auxiliary winding and a second auxiliary winding coupled in parallel with the first auxiliary winding such that both windings are arranged to provide power to an auxiliary load. The first auxiliary winding may include a greater number of turns than the second auxiliary winding. A ratio of the number of turns in the first auxiliary winding to the number of turns in the second auxiliary winding may be between 1.5:1 and 10:1, the first auxiliary coil and the second auxiliary coil may have between 50 and 2,000 turns, and the first auxiliary coil and the second auxiliary coil are formed from wire between 25 and 45 gauge.

Abstract: An electric motor has a first carrier having an array of electromagnetic elements and a second carrier having electromagnetic elements defining magnetic poles. The first and second carriers each define an axis. An airgap is formed between the first and second carriers when in an operational position. An inner thrust bearing connects the first and second carriers and is arranged to allow relative rotary motion of the carriers. An outer thrust bearing connects the first and second carriers and is arranged to allow relative rotary motion of the carriers. The electromagnetic elements of each of the first and second carriers are arranged radially inward of the outer thrust bearing and radially outward of the inner thrust bearing. The inner thrust bearing and the outer thrust bearing are arranged to maintain the airgap against a magnetic attraction of the electromagnetic elements of the first and second carriers.

Abstract: A system and method for enhancing spark generation in an ignition coil of an internal combustion engine at low rotational speeds of the flywheel. The method and system monitor the rotational speed of the flywheel and, when the rotational speed of the flywheel is below a threshold rotational speed, the system and method supplies voltage pulses to the primary winding. The timing of the voltage pulses supplied to the primary winding are triggered off of voltage transitions in pulses induced in the primary winding upon rotation of the flywheel. Once the internal combustion engine has started, the switching device transitions into a second condition to disconnect the electrical storage device from the primary winding. The spark generation system of the present disclosure allows for starting of an internal combustion engine upon slower rope pull starting or upon discharge of a starter battery.

Abstract: An ignition control apparatus according to one embodiment of the present invention is an ignition control apparatus which generates, in an ignition coil, a voltage to be supplied to a spark plug that is provided in an internal combustion engine on the basis of a pulse signal induced in the ignition coil of the internal combustion engine, wherein the ignition control apparatus comprises at least a switch element for passing current through and discharge the ignition coil, and a controlling unit that acquires the timing for discharge the ignition coil in response to a first pulse of the pulse signal, and controls the switch element so that a current flows through the ignition coil in response to a second pulse that follows the first pulse and the ignition coil is opened on the basis of the discharge timing acquired in response to the first pulse.

Abstract: A magnet-type power generator includes a rotor having a bowl-shaped flywheel and plural magnets disposed on an inner circumferential surface of the flywheel so as to be spaced at a predetermined interval, and a stator having plural cores facing the magnets and each having a coil wound therearound. The magnets include a bonded magnet integrally molded with the flywheel.

Abstract: A temperature sensor including a capacitive circuit including an input terminal for the application of an input voltage, an output terminal for the reading of an output voltage of the circuit, and a reference potential terminal, a voltage circuit for applying a predetermined voltage to the input terminal of the circuit and a circuit for reading the voltage at the output terminal of the capacitive circuit and converting the read voltage into a temperature measurement. According to the invention, the capacitive circuit includes a fir capacitor, connected between the input and output terminals, and having a capacitance decreasing according to temperature; and a second capacitor, connected between the input terminal and the terminal at the reference potential, and having a capacitance increasing along with temperature.

Abstract: An ignition system is provided, in which a Zener diode is connected in parallel with a spark plug, to suppress torque variation from becoming large in an engine when deterioration of the spark plug is advanced. Specifically, the ignition system includes a secondary coil having an end connected to a center electrode of the spark plug via a connecting path. The connecting path is connected to a constant-voltage path having a grounded end and including the Zener diode. The time from when an ignition signal is switched off until when ignition timing occurs is measured for a plurality of times. The difference between a maximum value and a minimum value among the plurality of measurements is defined to be a variation range. A breakdown voltage of the Zener diode is adjusted based on requirements such as for rendering the variation range to be a predetermined time or smaller.

Abstract: An ignition system for an internal combustion engine that utilizes a single primary coil and a single secondary coil to drive a pair of spark plugs. Current flowing in both a first direction and a second direction passes through the primary coil. The current flowing through the primary coil induces corresponding current in the secondary coil, which flows from the secondary coil to one of two spark plugs. Each spark plug is coupled to the secondary coil such that each of the two spark plugs receives current flowing only in a single direction. The current flowing through the ignition system can be from either a power source or created by the rotation of a flywheel having a series of magnet clusters.

Abstract: A connection device for connecting a first power supply and a second power supply to an ignition plug has a first power supply side line which establishes electrical connection between the ignition plug and the first power supply and which is electrically connected to the second power supply, and a second power supply side line which establishes electrical connection between the ignition plug and the second power supply. The first power supply side line includes a first diode which prevents a current inflow from the second power supply into the first power supply or a current inflow from the first power supply into the second power supply, and an inductor disposed between the first diode and the ignition plug. The inductor is disposed around the second power supply side line while being separated from the second power supply side line. Thus, noise can be suppressed.

Abstract: An in-vehicle power supply apparatus that provides power supply from a secondary battery installed in a vehicle to at least one in-vehicle device, includes a voltage compensating unit that suppresses and compensates for a decrease in a power supply voltage supplied to the at least one in-vehicle device in a case where a voltage supplied to the at least one in-vehicle devices has become less than or equal to a first predetermined value, and an uninterruptible power supply unit that supplies electric power of another secondary battery different from the secondary battery to at least a part of the at least one in-vehicle device in a case where a voltage supplied to the at least one in-vehicle device has become less than or equal to a second predetermined value that is smaller than the first predetermined value.

Abstract: The invention relates to an ignition device for triggering an ignition spark at a spark plug by way of an ignition generator. The latter includes a magnet wheel, which has two permanent magnets arranged at a spacing from each other in the peripheral direction and a magnetic yoke. The magnetic yoke carries a charging coil which charges an ignition capacitor, a primary coil and a secondary coil, connected, to the spark plug. During every passing of a permanent magnet, a voltage is induced in the coils, wherein, in order to trigger the ignition spark, the ignition capacitor is discharged via a switch element. In order to avoid an unwanted ignition at the bottom dead center of the piston, a device for reducing the voltage that occurs at the spark plug is provided.

Abstract: A control circuit for use with an ignition system of a light-duty combustion engine. In one embodiment, the control circuit includes a charging circuit, a timing circuit and a shut down circuit that includes a manual stop switch. Activation of the manual stop switch causes the control circuit to shut down the engine, and can do so even if the manual stop switch is only momentarily engaged by the operator.

Abstract: A control system for an engine includes a regulator with an output waveform which includes a plurality of waves, each wave having a peak portion, a first portion located on a front side of the peak portion, and a second portion located on the other side of the peak portion, the second portion exhibiting a more rapid change in voltage than the first portion. An ECU is configured to turn on a fuel injector of the engine at a first timing and turn off an ignition plug of the engine at a second timing, the first and second timings corresponding to a shift in waveform output from the peak portion toward the first portion of a first wave and a second wave, respectively. The waveform shift corresponds to a predetermined angular shift in the rotational position of a crankshaft of the motorcycle engine of preferably about 3°.

Abstract: A capacitor discharge ignition device for an engine including: an exciter coil provided in a magneto generator driven by the engine; a voltage increasing circuit that increases an induced voltage of the exciter coil; a capacitor charged by an output voltage of the voltage increasing circuit; and a discharge switch that is turned on at ignition timing of the engine and discharges charges in the capacitor through a primary coil of the ignition coil, wherein the ignition device further includes a voltage increasing control portion that controls the voltage increasing circuit so as to increase an output voltage of the voltage increasing circuit when a rotational speed of the engine is a set value or less, and limit the output voltage of the voltage increasing circuit when the rotational speed of the engine exceeds the set value.

Abstract: A capacitive discharge ignition (CDI) system that can be used with a variety of light-duty internal combustion engines, including those typically employed by lawn, garden, and other outdoor equipment. According to one embodiment, the CDI system includes an ignition module having a first switching device that shorts a charge coil during an initial portion of a charge cycle. Subsequently, the first switching device is turned ‘off’ so that a flyback charging technique charges an ignition capacitor. A second switching device is then used to discharge the ignition capacitor and initiate the combustion process.

Abstract: An ignition circuit causes a magneto to continue to provide spark to an engine for a delay period after the ignition switch is switched off. After the delay period, the ignition circuit routes energy from the magneto to actuate a magneto disable switch to provide a path to ground for the magneto.

Abstract: An apparatus and method for use with a carbureted internal combustion engine that accurately controls the amount of fuel that passes through the carburetor into the combustion chamber of the engine. A controlled triggering system controls the activation and deactivation of a solenoid. The solenoid, in turn, operates a plunger that varies the flow of fuel during the fuel intake cycle of the engine depending on the amount of fuel needed by the engine under any operating load. Thus, an engine can run leaner under partial load and run richer during periods of load and acceleration. By controlling the air-to-fuel ratio lower engine emissions and fuel consumption can be achieved.

Abstract: An ignition circuit is for an internal combustion engine in a handheld portable work apparatus. A combustion chamber (4) is configured in the cylinder (3) of the engine (1) which is delimited by a piston (5) driving a crankshaft (7). A pole wheel (10) revolves with the crankshaft (7) and is assigned to an induction loop (13). The pole wheel periodically changes the magnetic flux in the induction loop. An ignition capacitor (16) is charged by a charge coil (14) of the induction loop and is discharged via a discharge circuit (15) via an ignition coil (17). The ignition coil is connected to a spark plug (19) projecting into the combustion chamber. For achieving a powerful ignition spark, the discharge of the ignition capacitor is prevented by an rpm evaluation circuit (23) when the rpm curve (30) exhibits an rpm change (?n) which exceeds a pregiven threshold value.

Abstract: The present invention provides a complete ignition and charging system in one assembly for an internal combustion engine that includes a multiple pole radial air gap stator and flywheel assembly with ignition and regulator circuitry mounted to the stator and the flywheel having a plurality of openings extending therethrough.

Abstract: A capacitor discharge ignition (CDI) system for a light-duty spark ignition combustion engine includes an analog control circuit having a charging circuit, a trigger circuit and a shutdown circuit. In response to activation of a kill-switch, the shutdown circuit causes a switching device to discharge an ignition capacitor. Through the use of an RC circuit, the switching device continues to be biased such that it prolongs the discharge of the ignition capacitor, thereby preventing it from storing charge for the upcoming ignition pulse. This generally continues until the engine has come to a stop, at which time the engine can be immediately restarted without having to reset anything. The control circuit may also include engine speed limiting and ignition timing features.

Abstract: A capacitive discharge ignition system for initiating combustion during cold- and hot-ignition of an internal combustion engine requiring minimal mechanical energy input. The capacitive discharge ignition system includes a magneto having a rotor, a first capacitive discharge device electrically connected to the magneto and to an ignition coil of an internal combustion engine and a second capacitive discharge device electrically connected to the first capacitive discharge device, and to the ignition coil. A mechanical startup mechanism, such as a pull-type or kick-type device, is connected to the magneto and adapted to initiate rotation of the rotor, and thereby combustion within the engine. An energy storage device is electrically connected to the second capacitive discharge device and to the magneto. The energy storage device is adapted to store energy generated by the magneto during rotation of the rotor and to provide energy to the ignition coil of the internal combustion engine.

Abstract: The invention is relative to an ignition unit for internal combustion engines that comprises a primary circuit with a first switch for a primary winding for generating inductions in a secondary winding of a secondary circuit with a starter gap and that comprises a load circuit with the primary winding and comprises a second switch for a load.

Abstract: A capacitor discharge ignition device for an internal combustion engine including an ignition capacitor that is charged with a positive half cycle of an output voltage of an exciter coil, a thyristor that is triggered by a negative half cycle of an output voltage of the exciter coil when the internal combustion engine is ignited to discharge charges stored in the ignition capacitor through a primary coil of an ignition coil, and a reverse bias circuit that applies a reverse bias voltage between a gate and a cathode of the thyristor when a current flowing from the exciter coil through the thyristor is detected and when a charging current of the ignition capacitor is detected.

Abstract: A charge air intake system for a diesel engine (10) includes a first duct (24) and second bypass duct (30) having its upstream and downstream ends connected to the first duct and bypassing a charged air cooler (28) mounted in line with the first duct (24). An EGR conduit (38) leads from the exhaust manifold to the bypass duct (30). A turbo charger furnished charged air to the ducts where a proportioning valve (26) proportions air between the charge air cooler and the bypass duct.

Abstract: A contactless ignition system is provided with an ignition charge discharge condenser for charging an induced voltage of a generating coil, a first switching element, triggered to conduct when an induced voltage of a generating coil reaches a predetermined level, for supplying a charged voltage into an ignition coil, and a trigger control condenser for charging induced voltages of the generating coil and the trigger coil, and triggering of the first switching element caused by an induced voltage of the generating coil is inhibited by a second switching element during a specified discharge time following charging of the trigger control condenser.

Abstract: A drive unit with a drive and an electric machine, the drive being equipped with a drive shaft and the electric machine with a stator and a rotor. The rotor is coaxial to the stator and connected to the drive shaft for the transmission of torque, where the stator and the rotor interact with each other across an air gap, and where the drive shaft causes the rotor to execute a wobbling motion. In a cross section parallel to the drive shaft, the geometric course of at least one of the two surfaces forming the boundaries of the air gap, i.e., the surface of the rotor or the surface of the stator, is designed so that it at least approximates the geometric slowing curve (VR) described by the wobbling motion of the rotor.

Abstract: A charge air conditioning system, including a charge air booster, a refrigerant-to-air intercooler which is integral with the charge air booster, and a refrigeration system for supplying refrigerant to the refrigerant-to-air intercooler.

Abstract: A capacitor discharge ignition (CDI) system is capable of generating intense continuous electrical discharge at a spark gap for a desired duration and may include a second controllable power switching circuit with its input terminal connected to an output terminal of a high voltage DC source device. An output terminal of the second controllable power switching circuit is connected to an input terminal of a first power switching circuit. The second controllable power switching circuit may also have a control terminal connected to an output of a controller. The first controllable power switching circuit may be used for discharging a discharge capacitor, and the second controllable power switching circuit may cause charging of the discharge capacitor. As such, an ignition current through an ignition coil of the system is enabled for any desired number of cycles during both the charge and discharge cycles of the discharge capacitor.

Abstract: A CDI ignition coil unit integrally formed of an exciter coil, pickup coil and control unit is arranged over the upper side of the engine case, at a position on the cylinder head side in proximity to the periphery of the flywheel while an ignition cord is provided to connect a spark plug located at the cylinder head to the CDI ignition coil unit.

Abstract: An ignition control system for an internal combustion engine comprising a signal generator to generate pulse signals at a peculiar rotation angle position of the internal combustion engine and a position detection circuit to output a position detection signal whenever a zero cross point of a waveform of an output from a magneto AC generator driven by the engine is detected whereby when the engine should start, the engine is ignited as the signal generator generates the pulse signal, when the engine is idling, it is ignited as the position detection circuit outputs the position detection signal during the period after the pulse signal is generated and before the next pulse signal is generated and in the area exceeding the idling rotational speed, it is ignited at the ignition position arithmetically operated by a microcomputer.

Abstract: A outboard marine electrical generator unit capable of installation on the transom of a marine vessel which provides an electrical generating unit for small and medium sized marine vessels. The invention thus provides an A/C and D/C electrical power source capable of providing electrical power for appliances, air conditioning units and other electrical loads, even while the primary propulsion system is off and the vessel is docked or at anchor.

Abstract: A supercharger type compressor driven by an ultra high speed electric motor, having high efficiency and providing true air boost on demand. Magnetically loaded composite (MLC) rotor technology is used in the design and construction of the electric motor for driving a supercharger.

Abstract: A method and system for powering an electronic circuit in a vehicle provided with an AC-CDI starting system is described herein. A power converter is connected to the magneto to tap some of the high voltage electricity produced thereby. The power converter converts this voltage to a voltage suitable to be used by an electronic circuit. Another aspect of the present invention consists in powering the interrogator circuit of a transponder system to prevent unwanted starting of the engine of the vehicle.

Abstract: A magneto-system firing apparatus which is capable of rapidly detecting an abnormal state in the case where abnormality occurs in the make/break operation of a contact point due to damage of a breaker or the like.

Abstract: A charge air management system for an automotive engine provides air charge densification and cooling during periods of operation at higher load. Two air ducts are provided, with a first for furnishing uncooled and unboosted air, and with a second duct for furnishing chilled and boosted air, with the second duct being chilled during operation with air flowing through the first duct.

Abstract: A flywheel magneto generator comprising a flywheel driven by an internal combustion engine and having a permanent magnet, an ignition unit having an ignition coil and electronic devices mounted on a core having magnetic pole portions faced to an outer periphery of the flywheel, the flywheel having a plurality of blower blades provided on the outer faces of the bottom wall thereof and at lease one recess provided in the bottom wall portion of the flywheel and opened between the adjacent blower blades to both of the outer face of the bottom wall portion and the outer face of the peripheral wall portion of the flywheel whereby a cooling wind sent out outwardly in a diametrical direction by the blower blades when the flywheel rotates is blown through the recess against the ignition unit.

Abstract: A outboard marine electrical generator unit capable of installation on the transom of a marine vessel which provides an electrical generating unit for small and medium sized marine vessels. The invention thus provides an A/C and D/C electrical power source capable of providing electrical power for appliances, air conditioning units and other electrical loads, even while the primary propulsion system is off and the vessel is docked or at anchor.

Abstract: A magnetically energized ignition system (10, 24) for a small engine includes a rotary magnet system (11, 25) driven by the crank shaft of the engine, a charging coil (12, 26) in which a voltage is induced by the rotating magnet system (11, 25) an energy store (12, 28) which is charged by the charging coil (12, 26), a voltage converter (19, 34) which is connected with the energy store (12, 28) and creates a transformed high ignition voltage, a spark plug (23, 35) connected with the output of the voltage converter (19, 34), a crank shaft position indicator (14, 29), and a switch element (13, 27) controlled by the crank shaft position indicator and which has an effect on the energy store (12, 28), and reduces the disadvantages of known ignition systems, especially saving costs in respect to known ignition systems, especially by making possible the saving of costs in respect to high voltage cabling, the ignition system also being particularly suited to the narrow space requirements of small motors in that the vo

Abstract: A capacitor discharge engine ignition system includes an ignition coil having a primary winding and a secondary winding for coupling to an engine ignition spark plug. A first electronic switch has primary current conducting electrodes in circuit with an ignition charge storage capacitor and the primary winding of the ignition coil, and a control electrode responsive to-trigger signals for operatively connecting the ignition charge storage capacitor to discharge through the primary winding of the, ignition coil. A charge/trigger coil arrangement generates periodic signals in synchronism with operation of the engine. The charge coil generates a charge signal to charge the ignition charge storage capacitor, while the trigger coil generates a trigger signal for triggering discharge of the capacitor through the ignition coil.

Abstract: A CDI ignition coil unit integrally formed of an exciter coil, pickup coil and control unit is arranged over the upper side of the engine case, at a position on the cylinder head side in proximity to the periphery of the flywheel while an ignition cord is provided to connect a spark plug located at the cylinder head to the CDI ignition coil unit.

Abstract: An ignition control system for an internal combustion engine comprising a signal generator to generate pulse signals at a peculiar rotation angle position of the internal combustion engine and a position detection circuit to output a position detection signal whenever a zero cross point of a waveform of an output from a magneto AC generator driven by the engine is detected whereby when the engine should start, the engine is ignited as the signal generator generates the pulse signal, when the engine is idling, it is ignited as the position detection circuit outputs the position detection signal during the period after the pulse signal is generated and before the next pulse signal is generated and in the area exceeding the idling rotational speed, it is ignited at the ignition position arithmetically operated by a microcomputer.

Abstract: A drive adapter which adjusts the timing of an automotive generator/magneto (“magneto”)for use with a two cylinder motorcycle engine. The drive adapter has a rotor shaft which connects to the crankshaft of a motorcycle engine. The rotor shaft is connected, in a eccentric relationship, to a slide plate having a keyway for receiving the input shaft for the magneto. The eccentric relationship is created by the rotor shaft and magneto shaft having different axises of rotation. The eccentric relationship causes the distributor lead of the magneto to travel at varying speeds along its rotation, allowing an automotive magneto with evenly spaced distributor contact leads to be used in the ignition system of a motorcycle having timing angles which do not correspond to the evenly spaced contact leads of the distributor portion of the magneto.

Abstract: In an ignition apparatus, voltage is induced in a primary coil by a permanent magnet being rotated together with rotation of an output shaft of an engine. As the output shaft rotates, protrusions also revolve, inducing voltage in an electromagnetic pickup. Depending on the induced voltage in the pickup, a switching element is switched on or off. The switching-off timing of the switching element is set as an ignition timing. Therefore, at the ignition timing, the current through the primary coil is sharply cut off, so that great voltage is induced in a secondary coil and is applied to an ignition plug.

Abstract: An ignition arrangement for an internal combustion engine having an output shaft supported for rotation about an axis. The engine includes an engine housing at least partially enclosing the output shaft. Oil seals at least partially surround the output shaft for sealing the output shaft to the engine housing. An oil seal housing at least partially surrounds the output shaft and at least partially engages the oil seals. The oil seal housing directly supports a first ignition component.

Abstract: A method for generation of a low test voltage is used for the purpose of detecting an ionization current in the spark gap of an internal combustion engine. The voltage is generated by a controllable ignition magneto (5) arranged in order to charge (2) an ignition capacitor (4). The voltage is applied (3) to the primary side of the ignition device after generation of a spark and after the decay of the spark, after which the ionization current is detected (11) on the secondary side of the ignition device.

Abstract: An ignition system for use in internal combustion engines, in which there is provided a plurality of charging means, at least one of the plurality of charging means being adapted to provide charge to a plurality of charge storage means, in a predetermined manner, the charge storage means being arranged to collectively activate a spark means.

Abstract: An improved capacitive discharge ignition apparatus includes disable circuitry for permitting shut-off of the engine. The disable circuitry includes a SCR and a transistor in series to provide a bypass for current that would otherwise charge the ignition capacitor. The SCR is gated by a RC circuit charged by momentary contact of a user-actuated switch. The transistor is rendered conductive only during periods when a positive voltage is induced on the charge coil, thereby limiting discharge of the RC circuit. In addition, the RC circuit is regeneratively charged by a leakage current through the SCR gate. The disable circuitry thus achieves engine stoppage regardless of the time required.

Abstract: A magneto ignition system for applications which require long burn times (usually measured in milliseconds), high spark energy to ignite the air/fuel mixtures used in racing applications and light weight. Such applications can use air fuel rations as low as 2:1. The magneto assembly includes a one-piece shaft having a polygonal center section with sides defining a plurality of magnet receiving surfaces. Each surface is fixedly provided with a magnet, preferably a rare earth magnet, with adjacent ones of the magnets being arranged to have alternating outwardly facing poles. A magneto housing contains an array of stator windings that surround the plurality of magnets. The housing also includes opposed apertures with bearings for receiving opposed ends of the shaft. A non-conductive retainer housing surrounds the plurality of magnets and is affixed to the shaft to counteract centrifugal forces acting on the magnets, thus retaining the magnets on the shaft.