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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 |
| 7401603 | High tension capacitive discharge ignition with reinforcing triggering pulses A capacitive discharge ignition system in which a controllable switch is positioned between a storage capacitor and the primary winding of an ignition transformer. The switch is controlled to create a train of pulses to the primary winding timed to reinforce the rin... | 07/22/2008 |
| 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 |
| 7262561 | Method for controlling power supply through multiple modulation modes A method for controlling power supply through multiple modulation modes aims to control an inverter of a selective characteristic through a cycle control signal of varying modulation modes to ensure that the inverter and the load on the rear end function in a reliab... | 08/28/2007 |
| 7240670 | Extended duration high-energy ignition circuit A follow-on circuit for extending the duration of the spark provided by a spark plug. The circuit is connected between the coil secondary and the spark gap, and has a capacitor that discharges to the point of connection through a resistor and inductor. The resistor ... | 07/10/2007 |
| 7204220 | Device for igniting an air-fuel mixture in an internal combustion engine by means of a high frequency electric energy source A device is described for igniting an air-fuel mixture in an internal combustion engine using a high-frequency electric power source having a coaxial waveguide structure (5) into which the high-frequency electric power may be coupled and whose one end protrud... | 04/17/2007 |
| 7137385 | Device to provide a regulated power supply for in-cylinder ionization detection by using the ignition coli fly back energy and two-stage regulation This feature of the present invention comprises a method and apparatus that provides a regulated power supply for in-cylinder ionization detection by harvesting the excess ignition coil leakage and magnetizing energy immediately following the turn off of the ignitio... | 11/21/2006 |
| 7121270 | Spark generation method and ignition system using same An ignition system providing power and duration controlled ignition spark, comprises a spark controller, first switching energy accumulator, storage capacitor, and second switching energy accumulator with an ignition coil. The ignition system utilizes dual means of ... | 10/17/2006 |
| 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 |
| 7095181 | Method and apparatus for controllably generating sparks in an ignition system or the like An apparatus for controllably generating sparks is provided. The apparatus includes a spark generating device; at least two output stages connected to the spark generating device; means for charging energy storage devices in the output stages and at least partially ... | 08/22/2006 |
| 7075329 | Signal isolators using micro-transformers A logic signal isolator comprising a transformer having a primary winding and a secondary winding; a transmitter circuit which drives said primary winding in response to a received logic signal, such that in response to a first type of edge in the logic signal, a si... | 07/11/2006 |
| 7066161 | Capacitive discharge ignition system A capacitive discharge ignition (CDI) system for generating ignition sparks in an internal combustion engine comprises a single CDI module including a plurality of charge storage capacitor devices, a corresponding plurality of sets of ignition outputs, at least one ... | 06/27/2006 |
| 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 |
| 7007667 | Cold start fuel control system An engine startup fuel control system for use with an internal combustion engine of the type having a plurality of combustion chambers, an air intake passage fluidly connected to each combustion chamber and a source of fuel. The system includes a multipoint fuel inj... | 03/07/2006 |
| 7005855 | Device to provide a regulated power supply for in-cylinder ionization detection by using the ignition coil fly back energy and two-stage regulation The present invention is directed to a dual charge rate power supply circuit and method for ionization detection. The circuit includes a first diode, first and second capacitors, and first and second current paths. The first diode includes an anode operably connecte... | 02/28/2006 |
| 6967305 | Control of plasma transitions in sputter processing systems Methods and apparatus for controlling a plasma used for materials processing feature cooperative action of a resonant circuit and a switch unit coupled to a plasma vessel and a power supply. A sensor for acquiring a signal associated with a state of a plasma in the ... | 11/22/2005 |
| 6957589 | Temperature compensator of torque sensor The present invention provides a temperature compensator for a torque sensor, including a pair of coils, which are connected to an AC power supply circuit via transistors and in which inductances change in opposite directions depending on torque, and a torque detect... | 10/25/2005 |
| 6951201 | Method for reducing pin count of an integrated coil with driver and ionization detection circuit by multiplexing ionization and coil charge current feedback signals In a first preferred embodiment, the present feature of the invention multiplexes both the ionization and driver current feedback signals into one signal, thus reducing cost and making coil packaging easier. The multiplexed signal first outputs the ionization detect... | 10/04/2005 |
| 6913006 | High-frequency ignition system for an internal combustion engine A high-frequency ignition system has a waveguide and a high-frequency amplifier. In this context, the high-frequency amplifier is situated at a first end of the waveguide. An ignition gap is situated at a second end of the waveguide. Additionally provided is a posit... | 07/05/2005 |
| 6903578 | Logic isolator A logic isolation circuit has a transmitter circuit for receiving a logic input signal and providing a periodic signal to an isolation barrier, and a receiving circuit for receiving the periodic signal from the isolation barrier and for providing an output signal th... | 06/07/2005 |
| 6742508 | Ignition circuits An ignition circuit comprising storage means to store electrical energy, first and second switching devices, means for charging the storage means and means for switching each of the switching devices such that charge on the storage means is transferred to cause firi... | 06/01/2004 |
| 6670777 | Ignition system and method An ignition system for an engine includes an exciter circuit for use with an igniter, the exciter circuit having a step-up transformer the utilizes a relatively low voltage in its primary to produce a high voltage pulse that is applied to the igniter to c... | 12/30/2003 |
| 6662792 | Capacitor discharge ignition (CDI) system 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... | 12/16/2003 |
| 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 |
| 6196208 | Digital ignition An electronic ignition system includes a converter for receiving DC power from a source of DC power such as a battery. The convertor converts the DC power at low voltage to a high frequency signal which is stepped up to provide a higher voltage to a charg... | 03/06/2001 |
| 6138653 | Ignition system and principle of operation An electric ignition device for an internal combustion engine having a primary and a secondary circuit coupled together by a transformer. The secondary circuit includes a spark gap. The primary circuit includes a capacitor that can be discharged. The volt... | 10/31/2000 |
| 6123063 | Stacker ignition system Ignition system componentry which may be coupled or stacked with a conventional high energy ignition system with an ignition storage capacitor coupled to the ignition coil including an electronic controller provided as responsive to the current flow throu... | 09/26/2000 |
| 6123062 | Spark ignition system having a capacitive discharge system and a magnetic core-coil assembly A spark ignition system for an internal combustion engine has a capacitive discharge (CD) system connected to a coil-per-plug (CCP) magnetic core-coil assembly. The spark ignition system is connected to a spark plug and is adapted to initiate an ignition ... | 09/26/2000 |
| 5947093 | Hybrid ignition with stress-balanced coils An improved high energy high efficiency hybrid capacitive/inductive ignition system with one or coils Ti for internal combustion engines employing one or more energy storage capacitor means (4) shunted by diode means (9), with high leakage inductor means ... | 09/07/1999 |
| 5568801 | Plasma arc ignition system An ignition system for igniting fuel within an engine, comprising at least one ignition plug disposed in the engine, wherein the ignition plug has a pair of electrodes. A high voltage generator is connected to the ignition plug for applying a gated high v... | 10/29/1996 |
| 5558071 | Ignition system power converter and controller A high efficiency high power DC to DC power converter and controller system for a CD ignition system with a simple converter controller (8) for controlling a power switch (2) of a transformer (1) operated as a flyback which includes a lossless snubber (6)... | 09/24/1996 |
| 5517961 | Engine with flow coupled spark discharge An improved spark ignition engine system producing a large continuous, centrally directed, flow coupled ignition spark discharge through combustion chamber (1), piston (4), inlet system (28/29), spark plug (5), and ignition spark discharge (26) design, an... | 05/21/1996 |
| 5513618 | High performance ignition apparatus and method Apparatus and method for a plasma discharge for ignition in an internal combustion engine. A digital electronic system controls ignition performance and can provide an ignition discharge throughout an entire power stroke of a piston in a cylinder. The dis... | 05/07/1996 |
| 5505175 | Ignition system for internal combustion engine An alternating current based ignition system, in which a computer, in which a motorspecific data recognition field ("look-up" table) is stored and which is provided by sensors with operating parameters, controls the duration of the alternating ignition cu... | 04/09/1996 |
| 5471362 | Corona arc circuit A corona arc circuit has a spark plug connected in series with a rectifier. A capacitor is connected in series with a spark gap and the spark plug. An electrical power source has a transformer with a primary winding providing an AC voltage and a secondary... | 11/28/1995 |
| 5456241 | Optimized high power high energy ignition system A high power high energy ignition system for internal combustion engines using an energy storage capacitor (4), resonating inductor (3) and one or more coils Ti with switches Si for each coil Ti. The system is designed and optimized according to the trans... | 10/10/1995 |
| 5429103 | High performance ignition system Apparatus and method for a plasma discharge for ignition in an internal combustion engine. A digital electronic system controls ignition performance and can provide an ignition discharge throughout an entire power stroke of a piston in a cylinder. The dis... | 07/04/1995 |
| 5404859 | Ignition system for internal combustion engine An ignition system for an internal combustion engine capable of starting the engine even when a battery voltage is insufficient for ignition. A secondary voltage feedback circuit connected to a secondary winding of a transformer constituting a part of a D... | 04/11/1995 |
| 5318002 | Ignition apparatus for internal combustion engine An ignition apparatus for an internal combustion engine realizes a stable ignition control by ensuring an adequate capacitor charge voltage even in a high-speed engine operation. The apparatus comprises a trigger circuit (50) which includes a pulse genera... | 06/07/1994 |
| 5207208 | Integrated converter high power CD ignition A high power high energy capacitive discharge (CD) ignition system for internal combustion engines using a separate resonating inductor (7) in the discharge circuit which is constructed and arranged to provide suitable operation of the discharge circuit a... | 05/04/1993 |
