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| Number | Title | Issue Date |
| 7404396 | Multiple discharge ignition control apparatus and method for internal combustion engines In a multiple discharge ignition control apparatus, a battery, an energy storage coil and a first IGBT are connected in series. Further, the energy storage coil, a diode, a primary coil and a second IGBT are connected in series. The energy storage coil is connected ... | 07/29/2008 |
| 7347195 | Method and device for controlling the current in a spark plug The present invention relates to a method of controlling the spark current in a spark plug (8), comprising a voltage source (1; 14), an ignition system (2) connected to the voltage source, and a spark plug (8) connected to the ignition sy... | 03/25/2008 |
| 7320317 | Auxiliary device for engine spark plug ignition An auxiliary device for sparkplug ignition is provided having a case, and provided therein, electrolytic capacitors connected in parallel between ground terminals and positive terminals of the primary coils of the ignition coils, which are connected to sparkplugs in... | 01/22/2008 |
| 7131436 | Engine ignition system having noise protection circuit An ignition system for an internal combustion engine is connected to an ignition coil and to a circuit for providing an ignition signal. The ignition system includes a switch circuit connected to the ignition coil that switches on or off current supplied to the igni... | 11/07/2006 |
| 7107977 | Ignition apparatus for internal combustion engine An ignition apparatus for an internal combustion engine, which is controlled by a control unit, includes a connector, an ignition coil assembly, an igniter and a capacitor. The connector is electrically connected with the control unit, and includes an input terminal... | 09/19/2006 |
| 6705302 | Ignition device for an internal combustion engine An ignition device for an internal combustion engine having multiple cylinders and direct gasoline injection is described, so that the secondary current conduction time of the ignition coil can be prolonged controllably without increasing the primary current. At lea... | 03/16/2004 |
| 6112730 | Ignition system with clamping circuit for use in an internal combustion engine An ignition system for an internal combustion engine having a transformer with a primary winding adapted to be connected to a power supply and a secondary winding adapted to be connected to a spark plug of the internal combustion engine, and a controller ... | 09/05/2000 |
| 6095125 | Ignition system having ignition coil An ignition system includes an ignition coil which provides ignition voltage of one polarity, an igniter which supplies the primary current to the ignition coil at regular timings and a zener diode connected in series with the primary coil of the ignition... | 08/01/2000 |
| 6032658 | Ignition system having ignition coil An ignition system includes an ignition coil which provides ignition voltage of one polarity, an igniter which supplies the primary current to the ignition coil at regular timings and a zener diode connected in series with the primary coil of the ignition... | 03/07/2000 |
| 5970965 | Inductive coil ignition system for an engine An inductive coil ignition system for an engine, having at least one ignition coil which includes a primary winding fed from a voltage source and having two terminals, and a secondary winding also having two terminals. A switching apparatus is arranged pa... | 10/26/1999 |
| 5701077 | Misfire detecting device for gasoline internal combustion engine A method of detecting a misfire of a gasoline internal combustion engine is provided. By this method, a high voltage pulse which is not so high as to cause spark discharge, is applied to a secondary winding side of an ignition coil by way of a diode durin... | 12/23/1997 |
| 5617032 | Misfire detecting device for internal combustion engine A misfire detecting device for an internal combustion engine is provided. The misfire detecting device includes high voltage pulse producing means for producing, after spark discharge of a spark plug, a high voltage pulse which is not so high as to cause ... | 04/01/1997 |
| 5592926 | Method of detecting misfire of engine ignition system and device for carrying out the same A method of detecting a misfire of an ignition system for an internal combustion engine is provided. By the method, after completion of spark discharge of a spark plug, a high tension pulse which is not so high as to cause spark discharge is applied to ea... | 01/14/1997 |
| 5503132 | Device for detecting misfire of internal combustion engine equipped with double-ended distributorless ignition system A misfire detecting device for a double-ended distributorless ignition system is provided. The device includes a pulse generating circuit for generating a positive polarity pulse which is not so high as to cause spark discharge during the time after compl... | 04/02/1996 |
| 5379745 | Ignition system for internal combustion engines with high-tension switches An ignition system for internal combustion engines, has a plurality of spark plugs, an ignition coil provided for the spark plugs and having a secondary circuit, at least one trigger diode cascade formed as a high voltage semiconductor switch and connecte... | 01/10/1995 |
| 5228425 | Ignition system for internal combustion engine An inductive discharge ignition system for an internal combustion engine uses two ignition transformers with their associated circuitry. One transformer is employed in a Kettering type high voltage system. The other transformer is used in a low voltage hi... | 07/20/1993 |
| 5220901 | Capacitor discharge ignition system with inductively extended discharge time A capacitor discharge ignition device for an internal combustion engine includes a booster coil 21 and a transistor 22 for generating a boosted voltage; a circuit 15A for generating a switching signal for the transistor in response to an ignition signal; ... | 06/22/1993 |
| 5220903 | Electronic ignition system An electronic ignition system having a control unit to preset the ignition times of the individual cylinders, an ignition coil, and an end stage with a switching transistor (T1) for exciting the ignition coil. The end stage is provided with a s... | 06/22/1993 |
| 5215066 | Ignition apparatus for an internal combustion engine An LCDI-type ignition apparatus for an internal combustion engine includes first and second capacitors connected to an ignition coil and a voltage source for generating a charging voltage for the capacitors. The first capacitor is for producing an initial... | 06/01/1993 |
| 5211152 | Distributorless ignition system Disclosed is a distributorless ignition system of inductive discharge type for internal combustion engines. This system comprises basic ignition coil means (14) for centralized supplying of inductive energy for spark plugs and trigger ignition coil means ... | 05/18/1993 |
| 5197448 | Dual energy ignition system An ignition system for hydrocarbon based fuels employing two energy sources, one to create a spark, and the other to sustain an arc. The ignition circuit is based in part on the principle of a strobe light circuit. The circuit increases ignition efficienc... | 03/30/1993 |
| 4996967 | Apparatus and method for generating a highly conductive channel for the flow of plasma current An apparatus and method for generating a highly conductive channel for the flow of plasma current between the electrodes of an ignitor gap device are disclosed. A high voltage transformer having a high turns ratio is used to produce a high voltage spark a... | 03/05/1991 |
| 4993395 | High-voltage opto-electronic switching circuit To reduce the size of a high-voltage semiconductor optically responsive switch, for example suitable to control the flow of ignition energy from an ignition coil (4) to a spark plug (ZK), a stack of disk or plate-shaped semiconductor chips (9) is formed w... | 02/19/1991 |
| 4969447 | Inductive-discharge ignition device for an internal combustion engine The device is of the type comprising for each engine spark plug a transformer with a secondary winding to be connected to the respective spark plug and a primary winding connected to the output of a power stage able to provide an ON-OFF signal for control... | 11/13/1990 |
| 4922883 | Multi spark ignition system A multi spark ignition system using an ignition capacitor and an ignition transformer uses a device for providing charging energy to the ignition capacitor. A field effect discharge switching means is used for discharging the energy that is stored in the ... | 05/08/1990 |
| 4915087 | Ignition system with enhanced combustion and fault tolerance An ignition system having a first primary coil magnetically coupled only to a first second coil and a second primary coil magnetically coupled only to a second secondary coil. The secondary coils are electrically coupled to the output terminals through a ... | 04/10/1990 |
| 4829971 | Regulated power supply for a solid state ignition system This invention relates to a blocking oscillating converter for transferring energy from a source of power, such as a vehicle battery, to a storage means, such as an energy storage capacitor in a capacitor discharge ignition system. A novel control and fee... | 05/16/1989 |
| 4809661 | Ignition system for internal combustion engine An ignition system for an internal combustion engine capable of carrying out operaton of an ignition position using a generating coil arranged in a magneto as a signal coil and without using an integrating circuit. For this purpose, in the ignition system... | 03/07/1989 |
| 4696280 | High-tension capacitor-discharge ignition apparatus for internal combustion engines A high-tension Capacitor Discharge Ignition apparatus for internal combustion engines is supplied with battery low voltage and generates high voltage utilizing a push-pull amplifier controlled by a pulse-width modulator operating in the audio frequency ra... | 09/29/1987 |
| 4556040 | Distributorless ignition system for multi-cylinder internal combustion engine with misfire suppression To prevent malfunction due to misfire of a distributorless internal combustion engine (ICE), in which two spark plugs (20, 21; 27, 28) are connected to the same output terminals of the secondary (9) of an ignition coil through respectively reversely polar... | 12/03/1985 |
| 4501256 | Solid state magneto ignition switching device A magnet rotating synchronously with an internal combustion engine magnetically couples periodically with a stator having primary and secondary windings to induce a voltage in the primary winding. A switching transistor is connected across the primary win... | 02/26/1985 |
| 4487177 | Apparatus and method for starting a diesel engine using plasma ignition plugs A diesel engine is started by plural ignition plugs, each installed in a swirl chamber of a corresponding cylinder. Each ignition plug includes (a) an elongated center electrode, (b) a fuel-absorbent electrical insulator that encapsulates the center elect... | 12/11/1984 |
| 4406273 | Ignition system for internal combustion engine An ignition system for the internal combustion engine comprising a high voltage circuit for generating a spark, having the primary and secondary windings. In response to a first signal, the current in the primary winding is cut off thereby to generate a h... | 09/27/1983 |
| 4345575 | Ignition system with power boosting arrangement An ignition system for internal combustion engines employing two coordinated power sources which, together, provide a spark of much increased intensity and with extended duration. The first of the coordinated power sources is generally similar to the conv... | 08/24/1982 |
| 4305371 | Contactless ignition circuit for internal combustion engines This invention relates to a contactless ignition circuit for internal combustion engines characterized in that a primary short-circuiting current flowing through the primary winding of an ignition coil is made to flow through a power transistor controlled... | 12/15/1981 |
| 4246881 | System for decreasing the power consumption in the output transistor of an ignition system When the current through the primary winding of an ignition coil of an ignition system in an internal combustion engine has increased to a predetermined value, base current for a power transistor connected in series with the coil is shunted away, causing ... | 01/27/1981 |
| 4203403 | Ignition device for an internal combustion engine This invention relates to an ignition device for an internal combustion engine, in which a primary winding of an ignition coil and a breaker contact are connected in series and the breaker contact is so designed that wanted high voltages are produced only... | 05/20/1980 |
| 4103659 | Ignition system An improvement in the electrical circuitry of ignition systems for internal combustion engines wherein a new ignition pulse is provided from the surge voltage developed in the ignition coil of the ignition system. The new ignition pulse output signal is g... | 08/01/1978 |
| 4083347 | High energy spark ignition system, particularly for internal combustion engines To provide a sharp voltage pulse to break down the spark gap of a spark plug, an ignition coil is constructed to have two secondary winding portions, one providing a high-voltage output and the other providing high energy level or current output. The high... | 04/11/1978 |
