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| Number | Title | Issue Date |
| 7546836 | Ignition module for use with a light-duty internal combustion engine A capacitive discharge ignition (CDI) system that can be used with a variety of light-duty internal combustion engines, including those typically employed by lawn, garden, and other outdoor equipment. According to one embodiment, the CDI system includes an ignition ... | 06/16/2009 |
| 7467626 | Ignition device of ignition control system for an internal combustion engine An ignition device, including: an ignition coil (1) having a primary coil and a secondary coil; a switching element (5) for causing a primary current to be conducted through and shut off from the primary coil of the ignition coil; a waveform shaping ci... | 12/23/2008 |
| 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 |
| 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 |
| 7358690 | Motor control apparatus In a motor control apparatus in which a higher voltage is directly applied to a driving unit for a motor from a battery and a lower voltage stepped down by a switching regulator from the battery is also supplied to a control unit, the switching regulator is started ... | 04/15/2008 |
| 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 |
| 7252078 | Spark plug connector A spark plug connector, in particular for large engines, includes an inductive interference suppression device having a ferromagnetic core. The inductive interference suppression device also has at least one winding, preferably a coil, and an ohmic d.c. resistance o... | 08/07/2007 |
| 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 |
| 7234430 | Method for heating a glow plug for a diesel engine A method for heating a glow plug for a diesel engine to its desired temperature by supplying power to the glow plug in a controlled fashion. During a certain time interval after termination of a previous glow process, a mathematical model is used to determine the va... | 06/26/2007 |
| 7209819 | Drive circuit for a firing cap of a vehicle restraint system A drive circuit for a firing cap, triggerable by an electric direct current firing pulse, of a vehicle restraint system, has a firing circuit which forms a series connection of a high side switch to the firing cap and to a low side switch. The firing circuit is conn... | 04/24/2007 |
| 7185622 | Method and apparatus for interconnecting a coil and a spark plug The present invention is directed to a method and assembly for conducting electrical current between a coil and a spark plug of an engine. The ignition wire utilized for this conduction of electrical current generally includes a plug terminal located at a first end ... | 03/06/2007 |
| 7142085 | Insulation and integrated heat sink for high frequency, low output voltage toroidal inductors and transformers Toroidal transformer and inductor configurations are described that allow for greater heat transfer away from internal device components. The inventive transformer allows for higher thermal and electrical efficiency, as well as for more efficient use of expensive co... | 11/28/2006 |
| 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 |
| 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 |
| 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 |
| 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 |
| 6952128 | Polarity insensitive solid state switch A polarity insensitive solid state switch controlling a shunt load, wherein the switch includes first and second transistors connected in anti-parallel in series with the shunt load; and a longitudinal current sensor controlling the control electrodes of both transi... | 10/04/2005 |
| 6948485 | Ignition unit for internal combustions engines The invention is relative to an ignition unit for internal combustion engines that comprises a primary circuit with a first switch for a primary winding for generating inductions in a secondary winding of a secondary circuit with a starter gap and that comprises a l... | 09/27/2005 |
| 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 |
| 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 |
| 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 |
| 6701904 | Capacitive discharge ignition system with extended duration spark A capacitive discharge ignition system for an internal combustion engine comprises a converter transformer, an ignition transformer, a first triggerable switch S1, the primary winding of the ignition transformer and the storage capacitor being connected i... | 03/09/2004 |
| 6615810 | Apparatus and method for combustion initiation An apparatus for combustion initiation in an internal combustion engine is provided. A capacitive spark plug boot uses the engine cylinder head as an outer capacitor member. The capacitive spark plug boot contains a transformer, an inner capacitor member ... | 09/09/2003 |
| 6584965 | High efficiency high energy firing rate CD ignition Capacitive discharge system for ignitors of internal combustion engines with one ignition coil (T) per ignitor with one or more capacitors (6) and shunt switch means (5) associated with each such coil, together forming a coil primary ignition circuit of T... | 07/01/2003 |
| 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 |
| 6550463 | Method and switching system for the ignition of an internal combustion engine A method and a system for the ignition of an internal combustion engine in which a high voltage is applied to the electrodes (8.1, 8.2) of a spark plug (8). The high voltage produces a voltage disruptive discharge on the electrodes (8.1, 8.2) of the spark... | 04/22/2003 |
| 6539928 | Vehicle-mounted ignitor A circuit for supplying an oscillation suppress current is provided between a collector terminal and gate electrode of a main IGBT. The current supply circuit comprises a resistor and a diode which are connected in series. A bypass MOSFET is connected bet... | 04/01/2003 |
| 6457464 | High pulse rate spark ignition system A spark ignition system for igniting fuel in an internal combustion engine is described. The spark ignition system includes a magnetic core-coil assembly having a ferromagnetic amorphous metal magnetic core and driver electronics. The core-coil assembly a... | 10/01/2002 |
| 6392315 | Compensation circuit for an automotive ignition sensing system In a vehicle having an engine and an ignition system, a sensing circuit is provided for sensing the ignition voltage and providing this sensed signal to various operating modules of the vehicle. The sensing circuit includes a diode/resistor filter that pr... | 05/21/2002 |
| 6374816 | Apparatus and method for combustion initiation An apparatus for combustion initiation in an internal combustion engine is provided. A capacitive spark plug boot uses the engine cylinder head as an outer capacitor member. The capacitive spark plug boot contains the inner capacitor member and an insulat... | 04/23/2002 |
| 6167875 | Multiple spark capacitive discharge ignition system for an internal combustion engine An ignition system for an internal combustion engine that generates more ignition sparks per ignition event, i.e., per cylinder, per cycle, when the engine is operated in the stratified fuel injected mode than when the engine is operated in the homogeneou... | 01/02/2001 |
| 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 |
| 6052002 | Ignition systems having a series connection of a switch/inductor and a capacitor An ignition system has several charging circuits connected to a common input circuit and controlled by a common triggering unit to fire respective igniters. The input circuit has a voltage source connected across a first capacitor, which provides the outp... | 04/18/2000 |
| 6009864 | Capacitive ignition system for internal combustion engines An ignition system for use in internal combustion engines, in which there is provided a plurality of charging means, at least one of the plurality of charging means being adapted to provide charge to a plurality of charge storage means, in a predetermined... | 01/04/2000 |
| 5806504 | Hybrid ignition circuit for an internal combustion engine An ignition circuit for an internal combustion engine. The ignition circuit includes a transformer having a secondary winding for generating a spark and having first and second primary windings, a capacitor connected to the first primary winding to provid... | 09/15/1998 |
| 5672972 | Diagnostic system for a capacitor discharge ignition system An apparatus is provided for monitoring ignition in individual cylinders of a multi-cylinder engine of the type having an ignition system which includes a separate transformer for each cylinder. Each transformer has primary and secondary coils. The second... | 09/30/1997 |
| 5635801 | Capacitive-discharge ignition system for internal-combustion engines A capacitive-discharge ignition system for internal-combustion engines; the system comprises a magneto generator having a rotor provided with a plurality of magnets angularly spaced on an inner peripheral surface, in which at least two adjacent magnets ha... | 06/03/1997 |
