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| Number | Title | Issue Date |
| 7730879 | Method and device for igniting a combustible gas mixture in a combustion engine A voltage transformer circuit for supplying ignition power to a spark plug includes a transformer, a primary circuit, and a secondary circuit. The primary circuit is coupled with the secondary circuit via the transformer in order that, when a transistor switch is cl... | 06/08/2010 |
| 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 |
| 7047956 | Kickback preventing device for engine A number of embodiments of ignition systems wherein reverse rotation also known as kickback is detected particularly upon engine starting and stopped until the condition has been cleared and forward running is assured. ... | 05/23/2006 |
| 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 |
| 6932064 | Capacitor discharge ignition A capacitor discharge ignition (CDI) system includes a trigger circuit that generates a trigger signal in synchronism with operation of an engine for discharging an ignition capacitor. A timing circuit is connected to the trigger circuit for controlling the timing o... | 08/23/2005 |
| 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 |
| 6691689 | Rotation direction detector in ignition equipment of an internal combustion engine Apparatus and method for detecting the direction of rotation of an internal combustion engine using a magnet wheel which moves past an electrical ignition coil. For each revolution, at least one current or voltage pulse is induced in the coil having a pol... | 02/17/2004 |
| 6675784 | Engine ignition system having fail-safe function In an engine ignition system having a fail-safe function, a battery, a coil and a transistor are connected in series. A capacitor is connected to the coil by way of a diode. The capacitor, a primary winding of an ignition coil and a transistor are connect... | 01/13/2004 |
| 5778862 | Ignition controller for internal combustion engine In an ignition controller for an internal combustion engine, an angle sensor includes a plurality of sensor means for individually outputting a pulse signal SGT1 corresponding to a first reference crank angle and a pulse signal SGT2 corresponding to a sec... | 07/14/1998 |
| 5606958 | Ignition system for an internal-combustion engine, particularly for use in a chain saw or the like Ignition system for an internal-combustion engine, in particular for use in a chain saw or the like, comprising a magnetically conducting core supporting a charging winding and a triggering winding, a flywheel having at least one magnetic field generating... | 03/04/1997 |
| 5040519 | System to prevent reverse engine operation An ignition system for an internal combustion engine, such as an outboard marine engine, which includes an advanced timing schedule, a non-advanced timing schedule, and a circuit for switching between the two schedules or disabling both schedules based up... | 08/20/1991 |
| 4982717 | Ignition system for an engine with a reverse-rotation preventing function A novel and improved ignition system for an engine with a reverse-rotation preventing function capable of ensuring a proper engine operation over the entire operating range of the engine, particularly during the high-speed rotation thereof. The ignition s... | 01/08/1991 |
| 4722311 | Capacitor ignition apparatus Capacitor ignition apparatus for internal-combustion engines with a magneto generator and an ignition pulse generator for the switching through of an electronic switch which discharges the capacitor via the primary winding of the ignition coil, wherein th... | 02/02/1988 |
| 4679540 | Ignition system The present invention is an ignition device comprising a circuit for generating an ignition signal in synchronism with the revolutions of an engine, a circuit for inhibiting an igniting operation, a circuit for detecting the starting state of the engine, ... | 07/14/1987 |
| 4651705 | Ignition system for an internal combustion engine In an ignition system for an internal combustion engine, positive half cycles of an output of the exciter coil are used as the ignition energy. A signal coil outputs a maximum advance angle side signal whose magnitude exceeds a threshold at the maximum ad... | 03/24/1987 |
| 4566425 | Ignition system of the condensor-discharge type for internal combustion engine An ignition system of the condensor-discharge type for an internal combustion engine is disclosed which is capable of preventing delay of the ignition position at a high engine speed due to an armature reaction and preventing generation of ignition spark ... | 01/28/1986 |
| 4565180 | Contactless ignition device for internal combustion engines An exciter coil and pulser coil induce voltages in phase reversal to each other by the rotation of an internal combustion engine are provided. A first condenser and second condenser are charged with the negative and positive induced voltage of the exciter... | 01/21/1986 |
| 4515140 | Contactless ignition device for internal combustion engines A contactless ignition device for internal combustion engines comprising an exciter coil and pulser coil inducing voltages of phases reverse to each other with the rotation of the internal combustion engine, a first capacitor and second capacitor charged ... | 05/07/1985 |
| 4441478 | Contactless magneto ignition system A flywheel magneto generates a first and a second angular signal in synchronism with the rotation of an internal combustion engine so that the second signal is broader in pulse width than and delayed by a predetermined time interval relative to the first ... | 04/10/1984 |
| 4325350 | Alternator-powered breakerless capacitor discharge ignition system having improved low-speed timing characteristics An alternator-powered breakerless capacitor discharge ignition system for an alternate firing two-cylinder outboard motor provides improved timing characteristics at low, as well as high, engine speeds and prevents reverse engine rotation. The alternator ... | 04/20/1982 |
| 4244337 | Ignition system for internal combustion engines In an ignition system for internal combustion engines having a magneto generator for charging a capacitor and a thyristor for discharging the capacitor through an ignition coil upon receiving an ignition signal, an auxiliary capacitor and an associated tr... | 01/13/1981 |
| 4116188 | Capacitor discharge type contactless ignition system for internal combustion engines In the ignition system having a thyristor for performing a switching action, another thyristor is connected to capacitor charging coils in parallel with the thyristor, a primary winding of a transformer is connected in series with the another thyristor, a... | 09/26/1978 |
| 4114583 | Triggered ignition system for internal combustion engines with anti-reverserunning control A two-cylinder, two-cycle engine for an outboard motor includes a pull-rope starter unit and an alternator driven, capacitor discharge ignition system. The alternator includes an annular permanent magnet secured within a flywheel skirt and includes a pair... | 09/19/1978 |
| 4080940 | Engine control An engine control wherein a shaft driven by the engine causes a first signal to be generated and then a second signal after the shaft has rotated through a predetermined degree. The first signal starts a timer into operation, the timer producing a timer p... | 03/28/1978 |
| 4014309 | Capacitor discharge type contactless ignition system for internal combustion engines In the ignition system having a thyristor for performing a switching action, another thyristor is connected to capacitor charging coils in parallel with the thyristor, a primary winding of a transformer is connected in series with the another thyristor, a... | 03/29/1977 |
| 3955549 | CD ignition system with anti-reverse feature A capacitor-discharge ignition system for a two-stroke internal combustion engine has a trigger coil which during forward rotation of the crankshaft discharges a capacitor through the primary coil of an ignition transformer to produce an appropriately tim... | 05/11/1976 |
