Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7900613 | High-frequency ignition system for motor vehicles A high-frequency ignition system for spark ignition engines has a large ignition range with a cover measuring up to a plurality of square centimeters and enables the optional adjustment of the duration of the ignition. The combustion time can be minimized as a resul... | 03/08/2011 |
| 7588021 | Spark plug circuit A spark plug circuit for, and a method of, reducing or preventing the corrosion of a spark plug electrodes in an internal combustion engine. The circuit and method provide a positive voltage across the center electrode/ground electrode gap, which repels positively c... | 09/15/2009 |
| 7543578 | High frequency ignition assembly An ignition assembly includes a power converter receiving an alternating current input, including a first capacitor and a second capacitor. The first capacitor and the second capacitor are charged in parallel to a first DC voltage and at a first polarity to discharg... | 06/09/2009 |
| 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 |
| 7355500 | Attachable rod ignition coil The invention relates to an attachable rod ignition coil comprising an ignition coil part and an adapter provided with an ignition plug receiving element for fixing the adapter to an ignition plug. A shock-absorbing element is arranged between the ignition coil part... | 04/08/2008 |
| 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 |
| 7341051 | Electronic high frequency plasma catalyzer The catalyzer is applicable in the ignition of gasoline engines of transportation vehicles, generates, stand alone and stationary machines and others. Its advantage is that it has a higher quality of the ignition and an increased efficiency. The first version of the... | 03/11/2008 |
| 7267115 | Ignition apparatus for an internal combustion engine The ignition apparatus includes an electronic control unit and an igniter. The igniter detects ions resulting from ignition, and sends an ion current output signal to the electronic control unit. The igniter has a waveform shaping circuit and an ion current detectin... | 09/11/2007 |
| 7251571 | Methods of diagnosing open-secondary winding of an ignition coil using the ionization current signal In a first embodiment, the present invention is a method of detecting an open secondary winding, including the steps of enabling an integrator, resetting the integrator, detecting an ionization current, integrating the ionization current over a spark window, compari... | 07/31/2007 |
| 7215528 | Turn-on coil driver for eliminating secondary diode in coil-per-plug ignition coils A circuit for controlling an ignition coil that attenuates the feed forward voltage by slowing the initial turn-on of the coil driver is disclosed. The turn-on circuit includes a control signal input node, a capacitor, a resistor, a diode, and a coil driver. The con... | 05/08/2007 |
| 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 |
| 7203041 | Primary side turn-off of self-driven synchronous rectifiers There is disclosed a power conversion circuit including self synchronous rectifiers and a rapid shutdown section. When power is removed from the power conversion circuit, the rapid shutdown section prevents self oscillation of the self synchronous rectifiers. As a r... | 04/10/2007 |
| 7182076 | Spark-based igniting system for internal combustion engines A spark-based igniting system for internal combustion engines includes a cylinder, at least one piston, a combustion chamber, a spark insert, and a RF energy source. The piston is disposed within the cylinder for moving slidably between a top dead center position an... | 02/27/2007 |
| 7178513 | MCU based high energy ignition A high energy inductive coil-per-plug ignition system operating at a higher voltage Vc than battery voltage Vb by use of boost-type power converter (1), using high energy density low inductance coils Ti which are further improved by partial encapsulation of t... | 02/20/2007 |
| 7131437 | Ignition device for internal combustion engine An ignition device for an internal combustion engine includes a power transistor connected to a primary coil of an ignition coil, a current sensing resistor connected in series with the power transistor, a constant current circuit and an abnormal oscillation control... | 11/07/2006 |
| 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 |
| 7063079 | Device for reducing the part count and package size of an in-cylinder ionization detection system by integrating the ionization detection circuit and ignition coil driver into a single package Two embodiments of an integrated ionization detection circuit and ignition coil driver, an ASIC and a single electronic package, are disclosed. The apparatuses reduce the cost and complexity of an in-cylinder ionization detection system by combining like functionali... | 06/20/2006 |
| 7055372 | Method of detecting cylinder ID using in-cylinder ionization for spark detection following partial coil charging The present feature of the invention comprises a method and apparatus for determining cylinder ID. When a cylinder is compressed, the resistance increases across the spark plug gap. Thus, if a spark coil is only partially charged before activation of the spark, the ... | 06/06/2006 |
| 7013881 | Method for controlling ignition parameters of a spark plug for internal combustion engine The invention is a method for controlling ignition parameters of a spark plug (16) for an internal-combustion engine whose ignition is controlled by an engine control calculator, with the spark plug receiving a high voltage (U_HT) and a current (I_HT) from an... | 03/21/2006 |
| 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 |
| 6997171 | Ignition apparatus for an internal combustion engine An ignition apparatus for an internal combustion engine is capable of avoiding mis-ignition even if subject to external disturbances when a fail signal is transmitted through a common signal line on which an ignition signal can also be transmitted. An igniter is con... | 02/14/2006 |
| 6953032 | Combustion engine and ignition circuit for a combustion engine An internal combustion engine includes a cylinder with a spark plug, an electric DC voltage supply, and an ignition circuit. The ignition circuit includes a switching device and a transformer having a primary winding coupled to the supply via the switching device, a... | 10/11/2005 |
| 6923163 | Fuel injection controller and controlling method A fuel injection control apparatus and fuel injection method are provided for injecting a suitable fuel with a quick response in accordance with variations in required fuel injection amounts, while improving the energy efficiency, and enabling support for an electro... | 08/02/2005 |
| 6922057 | Device to provide a regulated power supply for in-cylinder ionization detection by using a charge pump A charge pump is used to supply current to the ionization detection circuit. To detect in-cylinder ions generated during the combustion process, a DC bias voltage needs to be applied. There are two ways to generate the DC bias: conventional DC power supply (large el... | 07/26/2005 |
| 6918366 | Device for igniting an air-fuel mixture in an internal combustion engine A device for the ignition of an air-fuel mixture in an internal combustion engine using a high-frequency electrical energy source. A coaxial waveguide structure forming a resonator chamber, into which the high-frequency electrical energy is able to be fed in a prede... | 07/19/2005 |
| 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 |
| 6886547 | Ignition system with multiplexed combustion signals A plurality of ignition coils having a combustion detection capability, such as an ion sense capability or cylinder pressure detection capability, are connected to a common communication line. The combustion signals for the plurality of ignition coils is multiplexed... | 05/03/2005 |
| 6883507 | System and method for generating and sustaining a corona electric discharge for igniting a combustible gaseous mixture The invention relates to a system for igniting a fuel-air mixture in a combustion chamber with a corona discharge. The system comprises an electrode inside of the combustion chamber, an electric circuit which provides radio frequency electric power to the electrode,... | 04/26/2005 |
| 6729317 | Ignition system with an ignition coil An ignition system is disclosed that is capable of configuring the development or pattern of the ignition spark in a freely pre-selectable manner. The system has an ignition coil that is supplied on the primary side by a high frequency source (HF Source) that is pul... | 05/04/2004 |
| 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 |
| 6615811 | Ignition coil integrated ion sense with combustion and knock outputs An ignition coil having ion sense capability with combustion and knock outputs features improved determination of when to open and close a combustion window during which a combustion signal indicative of the level of combustion is calculated. The system a... | 09/09/2003 |
| 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 |
| 6557537 | Ion current detection system and method for internal combustion engine A battery, an energy charge inductance, and a first transistor are connected in series in an ignition system. A primary winding and a second switching device are connected in series between the ground and a point between the energy charge inductance and t... | 05/06/2003 |
| 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 |
| 6357426 | Ignition device for a high-frequency ignition Proposed is an igniting device having a radio frequency resonator. Moreover, the resonator can be designed as a strip waveguide on a printed-circuit board. Several resonators can be connected in a pattern to the RF source via p-i-n diodes. At the cold end... | 03/19/2002 |
| 6213108 | System and method for providing multicharge ignition A system and method of providing multicharge ignition are provided. The method and system preferably are adapted to trigger at least some of the multicharge events of the system and method in a current-dependent manner. Preferably, existing power train co... | 04/10/2001 |
| 6176215 | Method for operation of a direct-injection spark-ignition internal combustion engine A method for operation of a direct-injection spark-ignition internal combustion engine operated over large areas of the characteristics map with stratified charge by way of fuel injection during the compression stroke. In order to guarantee reliable mixtu... | 01/23/2001 |
| 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 |
| 6142130 | Low inductance high energy inductive ignition system A high power, high energy inductive ignition system with a parallel array of multiple ignition coils Ti (2a, 2b) and associated 600 volt unclamped IGBT power switches Si (8a, 8b), for use with an automotive 12 volt storage battery (1), the system having a... | 11/07/2000 |
| 6135099 | Ignition system for 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 second winding adapted to be connected to a spark plug of the internal combustion engine, and a controller int... | 10/24/2000 |
