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| Number | Title | Issue Date |
| 7418956 | Ignition apparatus for an internet combustion engine An ignition apparatus for an internal combustion engine can be produced at low cost and small size by preventing the generation of a spark at a spark plug due to a turn-on voltage with a simple ignition coil construction having no energy loss. The apparatus include ... | 09/02/2008 |
| 7293554 | Ignition coil driver device with slew-rate limited dwell turn-on A device to control the charging rate of an ignition coil for an internal combustion spark ignition engine. The device controls the turn-on rate of the primary coil by slew-rate limiting using switching devices and a Miller-effect capacitor in order to reduce second... | 11/13/2007 |
| 7051724 | Car-mounted igniter using IGBT An igniter of the present invention has an insulated gate semiconductor device having a collector terminal, an emitter terminal and a gate terminal, a current control circuit which limits current by controlling voltage at the gate terminal when current for flowing t... | 05/30/2006 |
| 6935323 | Low current extended duration spark ignition system A system for firing a spark plug is disclosed. The system includes a timing controller configured to send a first timing signal and a second timing signal. The system also includes an ignition transformer having a primary winding and a secondary winding and a spark-... | 08/30/2005 |
| 6932065 | Internal combustion engine ignition apparatus There is proposed an internal combustion engine ignition apparatus in which a switching circuit having no power supply terminal connected to a power supply such as a battery, and includes an output terminal connected to an ignition coil, an input terminal for receiv... | 08/23/2005 |
| 6845763 | Vehicle ignition system using ignition module with reduced heat generation An ignition system for a vehicle includes a distributor having with a Hall Effect stator assembly and ignition module formed preferably as a thick film integrated (TFI) module, which receives a spark output (SPOUT) signal from an electronic control assembly (ECA). T... | 01/25/2005 |
| 6837230 | Ignition device for an internal combustion engine An ignition device for an internal combustion engine includes a control circuit that generates an ignition signal for allowing or interrupting the supply of a primary current of an ignition coil under control, a waveform shaping circuit that waveform-shapes the igni... | 01/04/2005 |
| 6837229 | Ignition device for internal combustion engine The ignition device for an internal combustion engine includes two spark plugs provided for each cylinder, ignition coils arranged independently to each of the spark plugs, an ignition power source circuit for supplying electrical energy to first coils which constit... | 01/04/2005 |
| 6708101 | Power supply system for control unit of internal combustion engine A power supply system for a control unit of an internal combustion engine is provided which is capable of holding an engine controllable state after starting of the engine until the engine is stopped. A relay with a self holding function is inserted in a power suppl... | 03/16/2004 |
| 6684867 | Ignition apparatus for internal combustion engine and one-chip semiconductor for internal combustion engine igniting An ignition apparatus for an internal combustion engine has an arrangement comprising a power part and a control part which are accumulated in a one-chip in an IGBT monolithic silicon substrate. The control circuit part has current limiting function of pr... | 02/03/2004 |
| 6679237 | Ignition drive circuit A drive circuit for an ignition system includes an ignition coil and spark plug associated with each cylinder of an internal combustion engine. Each ignition coil has a primary winding with the first end connectable to a power source and a second end oppo... | 01/20/2004 |
| 6595194 | Ignition system for internal combustion engine A main IGBT conducts or blocks a primary current flowing through the ignition coil in response to an input ignition control signal to generate a high voltage on the secondary side of the ignition coil. The main IGBT and a current limiter circuit are integ... | 07/22/2003 |
| 6564786 | Apparatus and method for controlling ignition of an internal combustion engine In the ignition apparatus for internal combustion engine according to the invention, during a period when spark discharge voltage is detected by a waveform detecting unit 20 and an ignition coil 12 supplies the spark discharge voltage by use of ignition d... | 05/20/2003 |
| 6298837 | Method and device for regulating power in ignition systems with a primary-side short-circuiting switch A method and an arrangement for energy control on an ignition system for an internal combustion engine are presented having an ignition coil or an ignition transformer whose primary winding can be short circuited by means of a switch, called a short-circu... | 10/09/2001 |
| 6257216 | Device for suppressing undesired ignitions in a spark ignition engine The primary winding of an ignition coil is connected in series with an ignition switch that can be switched by a control circuit. A circuit including a capacitor, a resistor, and a diode is configured between the control terminal and the collector of the ... | 07/10/2001 |
| 5794603 | Ignition coil device An ignition coil device is provided in which a damaged portion can be exchanged and which requires no connector for connecting a power switch with a wiring harness. Since an ignition coil device 2 is constructed such that a primary coil portion 21 and a p... | 08/18/1998 |
| 4918569 | Regulated forward converter for generating repeating spark discharge pulses A discharge load driving circuit has a transformer with a low voltage coil and a high voltage coil wound around a magnetic core. The high voltage coil has a transformation ratio for setting a high self-resonance frequency value for the transformer to ther... | 04/17/1990 |
| 4709684 | Method of stabilizing current flow through an automotive-type ignition coil To control the ON or conduction time of a transistor (4) serially connected with the primary winding (2) of an ignition coil, the voltage drop across the collector or base respectively, and emitter is sensed and used as a control parameter with respect to... | 12/01/1987 |
| 4597366 | Field-interrupting contactless ignition system for internal combustion engine An apparatus for distributing a high voltage arc from the high voltage ignition coil of a piston type internal combustion engine to the respective spark plug terminals by means of a high resistance, field-interrupting dielectric device which has an apertu... | 07/01/1986 |
| 4366800 | Dwell angle control for internal combustion engine ignition system A dwell angle control has three counting devices for detecting acceleration. In a first UP/DOWN counter (17), the count in one direction takes place throughout the time the current in the primary circuit of an ignition coil (25) exceeds a current threshol... | 01/04/1983 |
| 4284057 | Antiparasitic ignition device for cars A device and a method are provided for improving the operation of ignition devices, in which the parasitic waves causing interference are attenuated by means of a combination of resistors, connected in the primary and/or secondary of the ignition circuit ... | 08/18/1981 |
| 4273093 | Non-contactor ignition system for internal combustion engines A non-contactor ignition system for generating an ignition voltage under controlling a primary current of an ignition coil by a semiconductor switching element, comprises a capacitor which is charged by a first power source and repeats a charging and a di... | 06/16/1981 |
| 4244344 | Ignition system with overvoltage and excess current protection In a known ignition system, the emitter-collector circuit of the ignition transistor is connected in series with the primary winding of the ignition coil and with a precision resistor. When the voltage across the latter exceeds a predetermined value, an a... | 01/13/1981 |
| 4216755 | High tension distributing device The invention provides a distributor device for H.T. supply to an internal combustion engine, and comprising several ignition coils and a single contact breaker to interrupt supply to one or more of those coils at any instant, each of the coils having its... | 08/12/1980 |
| 4207852 | Non-contact ignition system for an internal combustion engine The present invention discloses a system which utilizes the storage action of capacitors and the characteristic of the turn-off operation due to a potential difference between the base and emitter of a transistor, and immediately after a primary short-cir... | 06/17/1980 |
| 4204490 | Over-rotation prevention method and circuit in the non-contact type ignition circuit for the internal combustion engine In a non contact ignition circuit for an internal combustion engine, a current induced in the primary winding or an ignition coil is controlled and cut-off by operation, on and off, of a thyristor so as to produce a discharge in a spark plug. A capacitor ... | 05/27/1980 |
| 4204509 | Current interruption type ignition system for an internal combustion engine A current interruption type ignition system for an internal combustion engine comprises an ignition coil including a primary coil portion and a secondary coil portion; an exciter inducing an AC voltage in synchronism with rotation of the engine to be supp... | 05/27/1980 |
| 4176647 | Modulation ignition system A Kettering type ignition system is improved by modulating the transient output from such system with an AC component signal to substantially increase the energy delivered to the igniters. The system provides for impedance matching of the AC source to the... | 12/04/1979 |
| 4173961 | Inductive solid state magneto ignition system An inductive, solid-state, magneto ignition system utilizing solid-state switching and operable at low speeds to facilitate starting. Timing is controlled in response to current developed in the primary winding of the magneto coil, which automatically ope... | 11/13/1979 |
| 4144859 | Oven-rotation prevention method and circuit in the non-contact type ignition circuit for the internal combustion engine In a non contact ignition circuit for an internal combustion engine, a current induced in the primary winding of an ignition coil is controlled and cut-off by operation, on and off, of a thyristor so as to produce a discharge in a spark plug. A capacitor ... | 03/20/1979 |
| 4114582 | Voltage limited ignition system, particularly for an internal combustion engine To prevent application of excessive spark energy in an ignition system designed for proper firing voltages even under low-battery voltage conditions, upon rise of the battery voltage to normal or excessive values, a voltage sensing circuit, including a th... | 09/19/1978 |
| 4109632 | GTO Ignition circuit A constant duration and level of spark is obtained over a wide range of engine speeds in an ignition circuit, including a gate-turn-off device having a main current path connected in series with the primary winding of an ignition coil. An operating voltag... | 08/29/1978 |
| 4066059 | Fuel injection nozzle valve and ignition system A nozzle valve of the type for fuel injection in an internal combustion engine. It has a needle and a valve seat adjacent to one end of the needle, plus a spring to bias the needle against the seat. It also has means for lifting the needle off the seat wh... | 01/03/1978 |
| 4037576 | Ignition system for internal-combustion engines negative bias trigger An internal-combustion engine ignition system comprises a power source with a voltage stabilizer; a compacitor connected to the power source through a rectifier; several circuits connected in parallel with the capacitor and ignition coil primary windings ... | 07/26/1977 |
| 4015576 | Ignition system An ignition circuit arranged to deliver pulses of energy to an internal combustion engine includes inductive-type ignition circuitry and a pulse generator. Inductive ignition pulses are generated in time correspondence with engine movements in response to... | 04/05/1977 |
| 3973545 | Contactless ignition system utilizing a saturable core transformer A contactless ignition system includes a free running oscillator which generates an output timing pulse to a pulse generator and an ignition coil whenever the oscillations of a saturable core transformer and a series resonant circuit which is driven by th... | 08/10/1976 |
| 3958546 | Ignition circuit for the internal combustion engine and premature ignition prevention method in the ignition device This invention relates to a method for preventing premature ignition in an ignition device for the internal combustion engine including a non-contact type ignition circuit for the internal combustion engine, particularly an ignition circuit for the intern... | 05/25/1976 |
| 3938491 | Switching circuit for ignition system 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... | 02/17/1976 |
