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| Number | Title | Issue Date |
| 8161942 | Ignition control device The invention provides an ignition control device and a killing control device correspond. An ignition control device comprises an ignition circuit module and a killing control device corresponds. The ignition circuit module comprises a killing control device includ... | 04/24/2012 |
| 8161943 | Non-contact ignition control device of internal combustion engine A no-contact ignition control device includes a stop switch which maintains a second switching element at the OFF state so that an induced voltage of a trigger coil triggers a first switching element and shortcircuit a generation coil. A surge absorption element is ... | 04/24/2012 |
| 8056536 | Ignition device for internal combustion engine An ignition device for an internal combustion engine including: an exciter coil that generates an AC voltage having a positive half wave and first and second negative half waves generated before and after the positive half wave with rotation of the internal combusti... | 11/15/2011 |
| 7631633 | Capacitor discharge ignition device for engine 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 v... | 12/15/2009 |
| 7603982 | Capacitor discharge engine ignition device A capacitor discharge ignition device in which a coil unit including an ignition coil and an exciter coil wound around a common core, and an ignition unit including a circuit board and components of an ignition circuit mounted to the circuit board are housed in a ca... | 10/20/2009 |
| 7520264 | Ignition circuit 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 ... | 04/21/2009 |
| 7506634 | Ignition timing circuit An ignition timing circuit is disclosed which provides variable fuel ignition timing as a function of the rotational speed of a small internal combustion engine. A measure of the rotational speed of an engine is generated from the shape of pulses generated by a sens... | 03/24/2009 |
| 7431014 | Internal combustion engine and vehicle having the same An internal combustion engine performs an ignition timing control by an electronic control in accordance with a pulse signal from a pulser. The pulser generates a plurality of the pulser signals per one rotation of the internal combustion engine. An ignition timing ... | 10/07/2008 |
| 7363910 | Ignition circuit having a high-energy spark for an internal combustion engine 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... | 04/29/2008 |
| 7362018 | Encoder alternator An encoder alternator for an internal combustion engine has a rotor with a plurality of circumferential magnetic rotor poles in a periodic pattern except for at least one magnetic irregularity. A sensor coil is wound around a stator pole and outputs a crankshaft pos... | 04/22/2008 |
| 7355300 | Solid state turbine engine ignition exciter having elevated temperature operational capability A turbine engine ignition exciter circuit applies energy stored in the exciter tank capacitor to the load (igniter plug) through a thyristor type semiconductor switching device that minimizes leakage current at elevated operating temperatures. The semiconductor swit... | 04/08/2008 |
| 7320306 | Engine revolution controller of working machine In an engine of a working machine having no governor mechanism, the engine revolution speed is controlled such that the revolution speed can stably be maintained irrespective of the variation in load without adjusting the throttle opening to exploit the full potenti... | 01/22/2008 |
| 7267105 | Optically triggered electronic distributor for an internal combustion engine A distributor for an internal combustion engine and associated methods comprise a camshaft having a drive gear thereon, a trigger disk positioned on the camshaft so as to rotate coaxially therewith, the trigger disk having a plurality of tabs defining a window betwe... | 09/11/2007 |
| 7249586 | Apparatus and method for limiting excessive engine speeds in a light-duty combustion engine A controlled slow down apparatus and method for use in the event that a light-duty combustion engine has entered a state of excessive speeds or auto-ignition. The controlled slow down method is preferably initiated when the engine speed exceeds an activation speed f... | 07/31/2007 |
| 7171948 | Ignition device for internal combustion engine A capacitor-discharge-type ignition device for an internal combustion engine, comprising: an exciter coil that generates an AC voltage having a positive half-wave voltage and first and second negative half-wave voltages present before and after the positive half-wav... | 02/06/2007 |
| 7156772 | Non-contact type engine start switch device A switch device that improves reliability in starting an engine is provided. The switch device includes a push button, a magnetic sensor, and a power supply ECU. The push button is pressed by a driver to start the engine. The magnetic sensor detects that the push bu... | 01/02/2007 |
| 7156075 | Ignition method with stop switch for internal-combustion engines For stopping an internal combustion engine, a stop switch prevents the triggering of the ignition. A controller in the ignition circuit determines the state of the stop switch by evaluating signals on the state of the internal combustion engine, corresponding inform... | 01/02/2007 |
| 7100589 | Multi-spark type ignition system A multi-spark type ignition system for an internal combustion engine has a compact energy storage coil. The multi-spark type ignition system includes a energy storage coil, an energy storage capacitor, a first power transistor that switches on or off supply of elect... | 09/05/2006 |
| 7069921 | Control circuit for capacitor discharge ignition system 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 cau... | 07/04/2006 |
| 7040282 | Independent timing retard for engine speed limiting A method and system for operating an engine wherein ignition of the engine is activated according to a predetermined timing schedule that references engine speed, and the ignition is suppressed above a predetermined engine speed threshold to allow engine speed to fa... | 05/09/2006 |
| 7028676 | Inductive ignition system for internal combustion engines The ignition system for internal combustion engines includes a rotor and an armature having an ignition coil in which voltage signals, each having pulses of opposite polarities are cyclically induced during each rotor revolution; a control unit for the ignition curr... | 04/18/2006 |
| 7017565 | Supplemental capacitive discharge ignition system 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 ... | 03/28/2006 |
| 7012349 | Machined rotor assembly and method of making same The present invention provides a single piece machined rotor comprising a shell having an upper lip and a lower lip, with a pocket formed between the upper lip and the lower lip for mounting magnets therein. The magnets are fixed in place within the inner sidewall o... | 03/14/2006 |
| 7000595 | Ignition timing control system for light duty combustion engines A control system for a low cost, light duty combustion engine, where the control system generally utilizes engine speed and/or temperature input signals and independent operating sequences to determine a desired ignition timing and air-to-fuel ratio for a combustibl... | 02/21/2006 |
| 6976482 | Electronic ignition system for vintage automobiles An electronic ignition system for a vintage automobile includes an ignition coil and an electronic switching circuit disposed in a coil box of the vintage automobile. The coil and electronic switching circuit are mounted within a coil box module that replaces four o... | 12/20/2005 |
| 6973911 | Method and device for controlling ignition timing of ignition device for internal combustion engine The invention simplifies the structure of a magneto generator and stabilizes the operation of an internal combustion engine at the time of start-up, thereby providing an ignition device simplified in structure and reduced in size and providing improved safety to the... | 12/13/2005 |
| 6914342 | Engine control unit enablement system An engine control unit enablement circuit is disclosed that selectively closes a conductive path between a chargeable electrical energy source and electronics of an engine/motor. An engine position sensor provides feedback as to the rotational position of a rotating... | 07/05/2005 |
| 6814055 | Magnetic ignition system A circuit to achieve a large ignition advance, limitation of speed of revolutions and to prevent backfiring and reverse direction running in a magnetic ignition system that comprises a flywheel with two poles and a two-legged iron core. An ignition transformer (L... | 11/09/2004 |
| 6814056 | Contactless ignition system for internal combustion engine 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, fo... | 11/09/2004 |
| 6799557 | Processor controlled discharge ignition with fixed firing angle at startup An ignition apparatus for use with an internal combustion engine to produce an electrical spark at a spark ignition device. The ignition apparatus includes triggering circuitry having a processor with stored timing data. The processor receives a signal indicative of... | 10/05/2004 |
| 6771519 | Method and apparatus for generating high voltage A power supply is described that comprises two or more flyback-type, DC-to-DC converters having substantially the same periods for their respective charge-discharge cycles; inputs from a common power source; outputs that are connected to a common output node and cir... | 08/03/2004 |
| 6766787 | Magnetic ignition system A circuit to achieve a large ignition advance, limitation of speed of revolutions and to prevent backfiring and reverse direction running in a magnetic ignition system comprises a flywheel with two poles and a three-legged iron core. An ignition transformer (L3 | 07/27/2004 |
| 6766243 | Device and method for ignition in an internal combustion engine In a device and a method for ignition of an internal combustion engine having at least one cylinder is described, the device includes a central control unit and peripheral units, each being allocated to one cylinder, digital control signals being sent from the centr... | 07/20/2004 |
| 6761148 | Electronic rotation speed-dependent control and/or diagnosis process for combustion engines An apparatus and process for diagnosis or control of the ignition or load state of a two or four cycle internal combustion engine. A generator rotating synchronously with the engine generates alternating voltages which are scanned by a control and the alternating vo... | 07/13/2004 |
| 6701896 | Microelectronic ignition method and ignition module with ignition spark burn-time prolonging for an internal combustion engine An electrical ignition for internal combustion engines having coils and a magnetic generator that rotates synchronously with the engine. The generator's magnetic field passes periodically through the coils and induces a sequence of corresponding alternati... | 03/09/2004 |
| 6644276 | Ignition mounting arrangement in internal-combustion engine 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... | 11/11/2003 |
| 6584957 | Contactless ignition system for internal combustion engine 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 trigger coil reaches an initial trigge... | 07/01/2003 |
| 6575134 | Electronic governor for a gasoline engine A capacitive discharge ignition system for an internal combustion engine including: a capacitor for storing electrical energy to produce a spark; a first switch having a trigger input for receiving a trigger pulse; a second switch connected to the trigger... | 06/10/2003 |
| 6571769 | Capacitor discharge type internal combustion engine ignition device A capacitor discharge type internal combustion engine ignition device is provided; wherein a capacitor is charged by a positive half-wave output voltage of an exciter coil; wherein an ignition is performed by giving an ignition signal to a thyristor from ... | 06/03/2003 |
| 6408820 | Capacitor discharge engine ignition system with automatic ignition advance and/or minimum ignition speed control 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 i... | 06/25/2002 |
