Class / Patent application number | Description | Number of patent applications / Date published |
123606000 | High frequency ignition system | 16 |
20090165763 | High-Frequency Ignition System for Motor Vehicles - The invention relates to a novel construction for creating a high-frequency ignition system for spark ignition engines, which is especially suitable for improving the characteristics of motor vehicles in terms of consumption, performance and exhaust gas emissions. Said high-frequency ignition can be used for carburetor engines, injection engines, direct-injection engines, and turbochargers. The high-frequency ignition comprises, according to the design, a large ignition range with a cover measuring up to a plurality of cm | 07-02-2009 |
20090165764 | OPTIMIZATION OF THE EXCITATION FREQUENCY OF A RESONATOR - A device for controlling a power supply of a radio frequency ignition of a combustion engine, including: an interface that receives measurement signals of operating parameters of a combustion engine; an interface that outputs a control signal; a module that stores relationships between measurement signals and the frequency of a control signal to be generated; a module that determines the frequency of a control signal to be generated on the basis of measurement signals received on the reception interface and of the relationships stored; and a module that applies the control signal at the determined frequency. | 07-02-2009 |
20100116257 | OPTIMUM CONTROL OF THE RESONANT FREQUENCY OF A RESONATOR IN A RADIOFREQUENCY IGNITION SYSTEM - A supply device for a radio frequency ignition system, including a supply circuit to provide a supply voltage to an output connected to a plasma generation resonator at a frequency defined by a control signal provided by a control device for the supply circuit. The control device includes a receiver interface for a determination request for the optimum control frequency, a receiver interface for receiving signals measuring the voltage at the pins of a capacitor in the supply circuit, a determination module for the optimum control frequency, to provide successive different control frequencies for the supply circuit for successive ignition commands on reception of a request and to determine an optimum control frequency based on received measured signals. | 05-13-2010 |
20110247599 | DEVICE FOR MEASURING THE IONIZATION CURRENT IN A RADIOFREQUENCY IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE - A device for radiofrequency ignition of an internal combustion engine, including a power supply circuit including a transformer with a secondary winding connected to at least one resonator that has a resonant frequency in excess of 1 MHz and including two electrodes configured to generate a spark to initiate combustion of a combustible mixture in a cylinder of the engine in response to an ignition command. A measuring capacitor is connected in series between the secondary winding and the resonator, a measurement circuit measures a current at terminals of the measuring capacitor, the current providing an electrical image of how combustion is progressing, and a protection circuit is connected between the capacitor and the measurement circuit and is configured to spare the current measurement acquisition time from electrical effects caused by the ignition command. | 10-13-2011 |
20110253114 | Method for Igniting a Fuel/Air Mixture of a Combustion Chamber, in Particular in an Internal Combustion Engine, by Creating a Corona Discharge - The invention relates to a method for igniting a fuel/air mixture in a cyclically operating internal combustion engine comprising one or more combustion chambers ( | 10-20-2011 |
20120260899 | IGNITION SYSTEM - An ignition system wherein creation of misfires is suppressed and excellent ignition ability is realized. The ignition system includes a spark plug; a discharge power source applying a voltage in order to generate a spark discharge at the spark plug; an AC power source supplying AC power to a spark generated by the spark discharge; and an ignition cable electrically connecting the spark plug, the discharge power source and the AC power source. The ignition cable includes a discharge electrode connecting the discharge power source and the spark plug, an AC electrode transmitting AC power from the AC power source to the spark plug, and an insulator interposed between the discharge and AC electrodes. | 10-18-2012 |
20140020666 | System, Circuit, and Method for Controlling Combustion - A system, circuit, and method are provided for generating continuous plasma to control combustion including the ignition and maintenance of the combustion process. An electric potential difference is generated across a pair of electrodes in a combustible bulk gas in the form of an oscillating driving potential just below the arcing threshold which alternates in polarity to cause an alternating gap current between the electrodes which generates continuous plasma to contribute to combustion of the bulk gas by providing for more efficient combustion. | 01-23-2014 |
123608000 | Having a specific spark plug | 9 |
20100206276 | DIAGNOSIS OF THE FOULING CONDITION OF SPARKPLUGS IN A RADIOFREQUENCY IGNITION SYSTEM - A radiofrequency ignition device including: a control capable of generating an ignition control signal; a supply circuit controlled by the ignition control signal for applying a supply voltage on an output interface of the supply circuit at a frequency defined by the control signal; at least one plasma generation resonator connected on an output interface of the supply circuit and capable of generating a spark between two ignition electrodes of the resonator upon an ignition control; a mechanism measuring an electric parameter representative of a variation in a supply voltage of the resonator; and a module determining the fouling condition of the electrodes based on the measured electric parameter and on a predetermined reference value. | 08-19-2010 |
20100263643 | DEVICE FOR MEASURING THE IONIZATION CURRENT IN A RADIO FREQUENCY IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE - A radiofrequency ignition device for an internal combustion engine, including: a supply circuit, including a transformer, a secondary winding of which is connected to a resonator including two electrodes configured to generate a spark so as to initiate combustion in a cylinder of the engine upon an ignition command, a measurement capacitor, connected in series between the secondary winding of the transformer and the resonator, and a measurement circuit measuring ionization current of the combustion gases, connected to the measurement capacitor and including a voltage generator with low input impedance, to provide a polarization voltage of the measurement capacitor so as to generate the ionization current, a first amplifier amplifying the ionization current and a measuring mechanism measuring a voltage representative of the amplified ionization current and connected at an output of the first amplifier. | 10-21-2010 |
20110146640 | HF Ignition Device - The invention relates to an HF ignition device for igniting a combustible gas mixture in an internal combustion engine, comprising a center electrode ( | 06-23-2011 |
20120055455 | Method for energizing an HF resonant circuit which has an igniter as a component for igniting a fuel-air mixture in a combustion chamber - The invention relates to a method for energizing an HF resonant circuit which contains an igniter as a component for igniting a fuel-air mixture in a combustion chamber of an internal combustion engine by means of a corona discharge, wherein the igniter comprises an ignition electrode and an insulator surrounding the ignition electrode, by means of a DC-AC inverter which is excited by successive current pulses which each last while a switch controlled by a control circuit is in its conducting switching state. It is provided according to the invention that the switch is actuated when an instantaneous value of an alternating current or an alternating current voltage excited in the HF resonant circuit falls below a first switching threshold (A−, B−, C−) and the switch s actuated when the instantaneous value of the alternating current or the alternating current voltage excited in the HF resonant circuit exceeds a second switching threshold (A+, B+, C+). | 03-08-2012 |
20120055456 | Method for generating corona discharges in two combustion chambers of a combustion engine - The invention describes a method for generating corona discharges in two combustion chambers of a combustion engine, into each of which a high-frequency igniter (HFZ | 03-08-2012 |
20120145136 | MULTI-EVENT CORONA DISCHARGE IGNITION ASSEMBLY AND METHOD OF CONTROL AND OPERATION - A corona discharge ignition system | 06-14-2012 |
20140174416 | IGNITION SYSTEM - An ignition system for an internal combustion engine includes a discharge portion of the center electrode in which a part thereof is surrounded by a bottom portion and a tubular tip portion of the center dielectric, the part of the discharge portion and the tubular tip portion are projected into a combustion chamber of the internal combustion engine from a substantially annular tip portion of the ground electrode that opens to the combustion chamber at a distal end of the ground electrode, a diameter-changing portion formed by reducing a diameter of a part of the tubular tip portion in a radial direction gradually as approaching toward a tip thereof, and a thin-walled portion formed by reducing a thickness of the tip of the tubular tip portion. | 06-26-2014 |
20140238366 | CORONA IGNITION SYSTEM HAVING SELECTIVE ENHANCED ARC FORMATION - A corona discharge ( | 08-28-2014 |
20150144115 | IGNITION DEVICE - An ignition device includes a center electrode, a center dielectric covering the center electrode, a ground electrode disposed so as to form a discharge space with the center dielectric, and a high energy source for applying an AC voltage between the center electrode and the ground electrode to generate a streamer discharge. A distal end portion of the center electrode projects beyond a distal end of the ground electrode to an inside of the combustion chamber of an internal combustion engine to make a dielectric discharge portion. The ground electrode is formed with an airflow inlet and en airflow outlet at a lateral portion thereof for enabling an in-cylinder airflow to be introduced into the discharge space. A distal end portion of the ground electrode projects radially inward to make a ground electrode projecting portion so that a discharge space narrow portion is formed with the dielectric discharge portion. | 05-28-2015 |