| Entries |
| Document | Title | Date |
|---|
| 20090025669 | HEAT SOURCE SUPPLIED GLOW PLUG/PLASMA TORCH AND OPTIONAL SPARK PLASMA TORCH FOR ACCOMPLISHING MORE EFFICIENT PISTON COMBUSTION - An ignition cell for incorporation into a cylinder head containing a piston. A body is affixed to an upper end location of the cylinder head and includes an ignition source end for communicating a heat supply to the body. An interior defined pre-ignition chamber is configured both for admitting atomized fuel and expelling non-volatile fuel during a compression cycle associated with the cylinder head. The heat source is communicated to the pre-ignition chamber and causes combustion of the atomized fuels within the pre-ignition chamber at a point in time ranging from between 20% of a top dead center position associated with a compression stroke and an absolute top dead center position of the cylinder head relative to the cylinder. A plurality of ports are defined in an end of the body, opposite the ignition source, for communicating the combusted fuels as a plurality of flame outlets with a remaining volume of atomized fuel, within the combustion chamber during a power outlet stroke. | 01-29-2009 |
| 20090120395 | METHOD AND DEVICE FOR IGNITING A FUEL-AIR MIXTURE IN A COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE - A device is provided for igniting a fuel-air mixture in a combustion chamber of an internal combustion engine with the aid of electromagnetic radiation, in particular light. The device includes at least two laser radiation sources, each having an optical resonator. The resonators are spatially oriented with respect to one another in such a way that modes of the laser radiation sources are coupled to one another and are able to generate time-shifted pulses of the electromagnetic radiation. | 05-14-2009 |
| 20120192825 | Method for Igniting Fuel Using a Corona Discharge - The invention relates to a method for igniting a fuel/air mixture in a combustion chamber of a cyclically operating internal combustion engine using an ignition electrode constitutes a capacitance in cooperation with a wall of the combustion chamber that is at ground potential, wherein an electric oscillating circuit, which is connected to a secondary side of an electric DC/AC converter and the ignition electrode, is excited by way of a primary voltage applied to a primary side of the electric DC/AC converter, wherein the excitation of the oscillating circuit is controlled such that a corona discharge igniting the fuel/air mixture is created in the combustion chamber at the ignition electrode. According to the invention, the primary voltage is controlled to a specified setpoint value which is changed during the combustion duration of the corona discharge and is dependent upon the crankshaft angle and on at least one characteristic value of the fuel/air mixture. | 08-02-2012 |
| 20130133603 | ENGINE COMPONENT SEAL ASSEMBLY AND METHOD OF SEALING A COOLANT PASSAGE FROM AN ENGINE COMPONENT - An engine component seal assembly and method of sealing a coolant passage from an engine component are provided. The seal assembly includes a sealing sleeve sized and dimensioned to slip fit into an engine component mounting bore and a retaining ring sized and dimensioned to be axially inserted into the sleeve. The ring contacts the sleeve and applies a radial force sufficient to create an interference fit and to move or yield an interface portion of the sleeve radially outward into sealing abutment against a wall forming the mounting bore to create a secure and reliable annular fluid seal. | 05-30-2013 |
| 20140196679 | INTERNAL COMBUSTION ENGINE - To improve a propagation speed of a flame by effectively utilizing energy of the electromagnetic wave in the combustion chamber in an internal combustion engine that promotes combustion of fuel air mixture in a combustion chamber by means of an electromagnetic wave. The internal combustion engine includes, in addition to an internal combustion engine main body and an ignition device, an electromagnetic wave emission device and a control device. The electromagnetic wave emission device emits an electromagnetic wave to the combustion chamber while the flame is being propagated after ignition of the fuel air mixture. The control device controls a frequency of the electromagnetic wave emitted to the combustion chamber in view of a resonant frequency of the combustion chamber in accordance with an operation condition of the internal combustion engine main body or a propagation condition of the flame. | 07-17-2014 |
| 20140299086 | PLASMA HEADER GASKET AND SYSTEM - A plasma header gasket for use with an internal combustion engine includes electrodes disposed around the perimeter of apertures in the gasket corresponding to piston cylinders in the engine. The electrodes produce a plasma spark in time with the engine to increase the efficiency of combustion. The plasma spark produces an ignition discharge compatible with various types of engines and types of fuels. | 10-09-2014 |
| 20140318489 | EM ENERGY APPLICATION FOR COMBUSTION ENGINES - An apparatus for igniting a fuel mixture by applying EM energy is disclosed. The apparatus may include a radiating element configured to apply EM energy to the fuel mixture at a plurality of Modulation Space Elements (MSEs), and a processor configured to determine at least one target spatial distribution of EM energy to be achieved during application of EM energy to the fuel mixture for igniting the fuel mixture, select a subset of MSEs from among the plurality of MSEs the subset of MSEs being selected to provide the at least one target spatial distribution, and cause application of EM energy to the fuel mixture at the selected subset of MSEs, via the at least one radiating element, to provide the at least one target spatial distribution of EM energy application. | 10-30-2014 |
| 20140326206 | IGNITION PLUG AND INTERNAL-COMBUSTION ENGINE - Provided is an ignition plug ( | 11-06-2014 |
| 20080216786 | Glow Plug with Integrated Pressure Sensor - A glow plug includes: a tubular body ( | 09-11-2008 |
| 20090183705 | Hot spark injection system for diesel engines to promote complete combustion - A spark injection system for an internal combustion engine for the detonation and combustion of remaining fuel/air mixture within the cylinder, the spark injection system introduces a pulsed electrical charge into the cylinder after the initial detonation when the piston is in a position of approximately five degrees after top dead center and the spark continues or is intermittently continued through the power stroke and through three quarters of the exhaust stroke, thus combusting the remaining fuel/air mixture and maintaining a higher temperature within the cylinder and alternatively the pulsed electrical charge is introduced during all four cycles of the cylinders operation. | 07-23-2009 |
| 20140230770 | TRANSIENT PLASMA ELECTRODE FOR RADICAL GENERATION - A transient plasma electrode apparatus may include an elongated electrode having a first and a second end. The first end may connect to a source of high voltage pulses. An insulation jacket may surround a portion of the electrode. An electric-field enhancing protrusion may be at the second end of the elongated electrode. The protrusion may cause an electric field when a high voltage is applied between the elongated electrode and a metallic wall of a combustion chamber in which the electrode is placed. The electric field may be greater at the second end as compared to along the length of the electrode. | 08-21-2014 |
| 20100175653 | FLEXIBLE IGNITOR ASSEMBLY FOR AIR/FUEL MIXTURE AND METHOD OF CONSTRUCTION THEREOF - An ignitor assembly constructed in accordance with one aspect of the invention has an upper inductor subassembly coupled to a lower firing end subassembly for relative pivot movement between the subassemblies. The upper inductor subassembly includes a tubular housing with inductor windings received therein with an upper electrical connector adjacent an upper end of the housing and a lower electrical connector adjacent a lower end of the housing. The lower firing end subassembly includes a ceramic insulator and a metal housing surrounding at least a portion of the ceramic insulator. The ceramic insulator has an electrical terminal extending from a terminal end and an electrode extending from a firing end. A flexible tube couples the upper inductor subassembly to the lower firing end subassembly and maintains the electrical terminal of the lower firing end subassembly in electrical contact with the lower electrical connector of the upper at a pivot joint. | 07-15-2010 |
| 20100258072 | Spark ignition device for internal combustion engine - An engine spark ignition device for internal combustion engines having electrical coupling of the firing spark plug wire to the non-firing spark plug wires. The device is for use with an engine having a plurality of spark plug wires connected between a distributor and a spark plug disposed in the engine cylinder and comprises identical elongated electrically conductive semi-circular plates which enclose identical elongated electrically conductive planar plates having apertures therein that intersect to form spaces for receiving the spark plug wires. The interaction between firing spark plug wires and non-firing spark plug wires results in more efficient and cleaner combustion in the combustion chambers. | 10-14-2010 |
| 20110083628 | PLUGHOLE WATERPROOFING DEVICE FOR ENGINE - In a plughole waterproofing device for an engine, a coil case for covering an ignition coil is fitted onto the ignition coil that is accommodated, together with an ignition plug, in a plughole opened to an upper surface of an engine, and a longitudinal air path extending upward from a lower end portion of the case upper portion communicating with the plughole and a vent hole communicating with an upper end portion of the longitudinal air path and being opened to ambient air are provided in a case upper portion, protruding above the engine, of the coil case. The vent hole is provided in an upper portion of the case upper portion. A cover wall hanging while surrounding the vent hole is continuously provided on the case upper portion, and an air chamber is formed inside the cover wall, the vent hole being opened in an upper portion of the air chamber, an opening face being formed at an entire bottom of the air chamber in such a manner as to open toward the engine. Accordingly, it is possible to effectively prevent water intrusion into a vent hole and thus preventing a plughole from receiving water even when the engine receives water repeatedly. | 04-14-2011 |
| 20130298864 | COVERING DEVICE FOR A SPARK PLUG SHAFT AND OPTICAL FIBER DEVICE FOR A LASER SPARK PLUG - A covering device for a spark plug shaft of an internal combustion engine has a fastening element provided for mechanically fastening the covering device to a target system, the fastening element being configured to electrically conductively connect at least one electric conductor to the covering device ( | 11-14-2013 |
| 20080257294 | Internal Combustion Engine and Method for Operating an Internal Combustion Engine by Means of a Laser Ignition Unit - The invention relates to a method for operating an internal combustion engine including a fuel-injection unit and a laser ignition-unit. According to the invention, during a compression cycle of the internal combustion engine, fuel is injected into the combustion chamber by means of the fuel-injection unit in such a way that an ignitable, round, flat mixed region of fuel and air forms on a plunger and a predetermined period elapses between the end of the fuel injection and the start of ignition in order to form the round flat mixed region. Ignition then takes place within the flat round mixed region by means of the laser-ignition unit. | 10-23-2008 |
| 20080264371 | LASER IGNITION DEVICE AND LASER-IGNITION INTERNAL COMBUSTION ENGINE - A laser ignition device for irradiating and condensing laser beams in a combustion chamber of an internal combustion engine so as to ignite fuel particles within the combustion chamber, includes: a laser beam generating unit for emitting the laser beams; and a condensing optical member for guiding the laser beams into the combustion chamber such that the laser beams are condensed in the combustion chamber, wherein the laser beam generating unit comprises a Beam Parameter Product (BPP) laser beam generating unit which emits the laser beams with a BPP value of no more than 20 mm·mrad (radius·half angle). | 10-30-2008 |
| 20090044776 | Ignition device for an internal combustion engine - An ignition device with a laser light generating device for the coupling of laser light into a combustion chamber of the internal combustion engine, wherein the laser light generating device is configured to couple at least dichromatic laser light into a combustion chamber of an internal combustion engine. | 02-19-2009 |
| 20090078228 | INTERNAL COMBUSTION ENGINE INCLUDING PLASMA GENERATING DEVICE - A plasma generating device for an internal combustion engine sets the generating-atmosphere pressure for generating plasma to the intake pressure, thereby achieving a reduction in the size, weight, and energy consumption of the plasma generating device and an improvement in combustibility. An internal combustion engine includes a throttle valve arranged in an intake passage having an intake opening that opens to a combustion chamber. An intake valve opens and closes the intake opening. A plasma generating device includes a plasma generator having a generating chamber for converting intake air into a plasma state to generate plasma. The plasma generating device supplies plasma to a downstream passage of the intake passage between the throttle valve and the intake valve. A gas control valve operates in conjunction with the throttle valve, and is arranged in an introduction passage between a clean chamber of the air cleaner chamber and a generating chamber. | 03-26-2009 |
| 20090107436 | Laser igniter having integral pre-combustion chamber - An igniter for an internal combustion engine is disclosed. The igniter may have a body, and a pre-combustion chamber integral with the body and having at least one orifice. The igniter may further have a focusing device configured to direct at least one beam of light energy into the pre-combustion chamber. | 04-30-2009 |
| 20090107437 | RF igniter having integral pre-combustion chamber - An igniter for an internal combustion engine is disclosed. The igniter may have a base, and a cap fixedly connected to the base to form an integral pre-combustion chamber. The cap may have at least one orifice. The igniter may also have an electrode extending through the base and at least partially into the integral pre-combustion chamber. The electrode may be configured to direct current having a voltage component in the RF range into the integral pre-combustion chamber. | 04-30-2009 |
| 20090114178 | Fuel injection device including plasma-inducing electrode arrays - A plasma assisted combustion device includes a body formed of a dielectric material that defines a conical-shaped plasma chamber. A conical-shaped ground electrode is positioned in the plasma chamber. At least one support structure is coupled to the conical-shaped ground electrode so as to suspend the ground electrode in the plasma chamber thereby forming a gap between an outer surface of the body and the ground electrode. The support structure comprises an insulated material that is positioned on an outer surface so as to reduce the probability of generating an undesirable electrical discharge. A hot electrode that is energized with a high voltage that strikes a plasma discharge in the gap is positioned proximate to the plasma chamber. A fuel injector is positioned proximate to the conical chamber. The fuel injector includes a nozzle that converts a liquid fuel into an aerosolized high molecular weight fuel that sprays into the plasma chamber. The plasma in the gap cracks the aerosolized high molecular weight fuel into at least some lower molecular weight fuel and creates at least some free radicals and/or excited-state species. | 05-07-2009 |
| 20090120394 | RESONATOR ASSEMBLY - A resonator assembly is described having a longitudinal axis and generator section, an inductance section, a capacitance section, and an ignition section arranged in sections in a common housing along the longitudinal axis. The housing surrounds all the above-mentioned sections and has an opening in the region of the ignition section, and the housing is made of an electrically conductive material or has at least one conductive surface. An electrical series circuit comprising an inductance section and capacitance section constitutes electrically an oscillatable dipole to which the housing acts as a return conductor. | 05-14-2009 |
| 20090133654 | METHOD AND SYSTEM TO DISTRIBUTE HIGH-ENERGY LASER PULSES TO MULTIPLE CHANNELS - A method and system to distribute high-power laser pulses to create sparks in individual cylinders of a multi-cylinder engine are provided. A laser provides laser output pulses. A distributor includes a linear array of mirrors with a respective mirror associated with one of the laser plugs. Each mirror is operatively controlled to move into a laser beam path to direct individual laser output pulses the associated laser plug for providing spark generation. The system enables correct cylinder firing order for predefined multi-cylinder firing sequences and allows for individual cylinder timing variation. | 05-28-2009 |
| 20090133655 | LASER IGNITION SYSTEM - A laser ignition system includes a laser oscillator and an oscillation controller. The laser oscillator is configured to generate laser light into a combustion chamber of an engine. The oscillation controller is configured to cause the laser oscillator to generate a plurality of laser pulses into the combustion chamber in order to ignite the engine. The oscillation controller causes the laser oscillator to generate each of the plurality of laser pulses at a laser oscillation period that is longer than 10 μs and shorter than 300 μs. | 05-28-2009 |
| 20090159031 | Laser ignition apparatus - An apparatus for the ignition of a fuel/air mixture in the combustion chamber of a combustion machine, wherein the combustion chamber has at least one inlet valve and at least one outlet valve, wherein there are further provided a laser light generating device for giving off laser light and a combustion chamber window for coupling the laser light into a combustion chamber of the combustion machine, wherein there is provided at least one fluid feed means which is separate from the inlet valve or valves and with which a fluid can be caused to flow at least on to regions of the surface of the combustion chamber window or between the combustion chamber window and the focal point of the laser light. | 06-25-2009 |
| 20090159032 | Laser Ignition apparatus - Apparatus for coupling laser light into a combustion chamber of a combustion engine including a combustion chamber window and a structural element, wherein the combustion chamber window is releasably fixable to the structural element, wherein there is provided an optical window which is arranged at the structural element and is at least region-wise covered by the combustion chamber window. | 06-25-2009 |
| 20090159033 | Sparkless ignition plug for the internal combustion engine - The preferred embodiment according to the present invention is the use of a laser device to ignite fuel for the purpose of producing mechanical power. The laser replaces the spark plug in the internal combustion engine to ignite the air fuel mixture. The hot photons that is created by the laser is used in the same way as the electrons that is created by the spark plug, but the photons need no ionization path, there for the ignition is almost instantaneous. | 06-25-2009 |
| 20090194051 | Plasma Generating Ignition System and Associated Method - An apparatus and method for igniting combustible materials in a combustion chamber of a combustion engine using corona discharge plasma from a coaxial cavity resonator. This system and method uses a coaxial cavity resonator in a body adapted to mate with a combustion chamber of a combustion engine. The coaxial cavity resonator is coupled with an energy shaping means that develops the appropriate waveform for triggering radio frequency oscillations in the coaxial cavity resonator. A connection means on the apparatus allows for the apparatus to accept an electrical ignition stimulus from an electronic ignition control system. The coaxial cavity resonator develops corona discharge plasma at a discharge electrode when a sustained radio frequency oscillation results in a standing wave in the coaxial cavity resonator. The corona discharge plasma developed near the discharge electrode ignites the combustible materials in the combustion chamber of the combustion engine. | 08-06-2009 |
| 20090194052 | Method and apparatus for operating standard gasoline-driven engines with a readily-available non-volatile fuel, thereby obviating the use of gasoline - The conventional spark plug of a gasoline engine is removed and replaced with a high-power spark plug capable of delivering very high power (e.g., one megawatt) over a relatively-narrow time interval (e.g., 20 nanoseconds). Next, the gasoline is replaced with a readily-available non-volatile fuel (e.g., JP-8). The gasoline—and its transportation, storage, handling and/or use—is eliminated altogether, thereby removing a strategic and tactical threat from enemy and terrorist forces who otherwise would be targeting the gasoline tanks. Additionally, or alternatively, the fuel in the line (or the fuel injector) may be heated to start a cold engine or under cold ambient temperatures. | 08-06-2009 |
| 20090194053 | PLASMA JET IGNITION PLUG - A plasma jet ignition plug capable of inhibiting occurrence of channeling while reducing removal of energy of plasma through a ground electrode at the time of emission of plasma. A ground electrode of a plasma jet ignition plug projects inward from a front end face of a metallic shell toward an opening end of a cavity which is open at a front end face of an insulator. A projecting distal end which forms a spark discharge gap between the same and a center electrode within a cavity is located inward, with respect to a diametral direction P orthogonal to an axis O, of a position which is located 0.5 mm radially outward from the opening end of the cavity. | 08-06-2009 |
| 20090235889 | IGNITION DEVICE FOR PLASMA JET IGNITION PLUG - An ignition device for a plasma jet ignition plug is provided. A resistance for decreasing electric noises is not incorporated in a plasma jet ignition plug. A resistance of not less than 1 KΩ and not more than 20 KΩ is provided to a path from a spark discharge circuit to a center electrode, thus reducing the generation of electric noises at the time of trigger discharge. Along with the reduction of the generation of electric noises, a loss of energy at the time of plasma discharge can be reduced by setting an inner resistance provided to a line extending to the center electrode from a plasma discharge circuit to 1Ω or less. Accordingly, the plasma jet ignition plug can jet flame-shaped plasma sufficiently large for igniting an air-fuel mixture. | 09-24-2009 |
| 20090250032 | Techniques for producing an electrical pulse - Embodiments of the present invention provide an apparatus, comprising a field emission source having polarities and positions in accordance with a code, a plurality of connected coils adapted to move proximate to said field emission source and having positions in accordance with said code, and wherein an electrical pulse is created when said field emission source is aligned with said plurality of connected coils according to said code. | 10-08-2009 |
| 20090260592 | FUEL IGNITION SYSTEM, FUEL IGNITING METHOD, FUEL REFORMING SYSTEM AND FUEL REFORMING METHOD, FOR INTERNAL COMBUSTION ENGINE - A fuel ignition system for an internal combustion engine is disclosed. The fuel ignition system is adapted to allow a photocatalyst to ignite a mixture by using a light energy irradiated from a light generator. The fuel ignition system includes: a combustion chamber; the photocatalyst provided in the combustion chamber; and a light generator for flatly irradiating the light energy to the photocatalyst. | 10-22-2009 |
| 20090266325 | MICROWAVE COMBUSTION SYSTEM FOR INTERNAL COMBUSTION ENGINES - A microwave combustion system is presented that can replace the conventional spark plug in an internal combustion engine. One or more microwave pulses are provided to a microwave feed in a plug that sits in the cylinder. A microwave generated plasma generated by the plug in the vicinity of a fuel mixture can provide for highly efficient combustion of the fuel-air mixture. | 10-29-2009 |
| 20100000485 | IGNITION DEVICE FOR AN INTERNAL COMBUSTION ENGINE - An ignition device for an internal combustion engine includes at least one pump light source which supplies a pump light. In addition, a laser device is provided which generates a laser pulse for emission into a combustion chamber. A light guide device transmits the pump light from the pump light source to the laser device. Finally, a laser-active solid body, a passive Q-switch, an incoupling mirror, and an output mirror of the laser device are arranged as one integrated monolithic part. | 01-07-2010 |
| 20100000486 | IGNITION DEVICE FOR AN INTERNAL COMBUSTION ENGINE - An ignition device for an internal combustion engine, in particular of a motor vehicle, includes at least one pump light source, which provides a pump light. Furthermore, a laser device is provided, which is able to generate a laser light for beaming into a combustion chamber. A waveguide device transmits the pump light from the pump light source to the laser device. The laser device includes at least one refraction device, for example, a lens, which refracts the pump light and is in one piece therewith. | 01-07-2010 |
| 20100018487 | Method for Operating an Ignition Device for an Internal Combustion Engine - A method for operating an ignition device for an internal combustion engine, particularly of a motor vehicle, having a laser device which has a laser-active solid that has a passive Q-switch. The duration of a pumping light pulse that is applied to the laser device is selected as a function of a specifiable number of laser pulses that is to be generated using the laser device. | 01-28-2010 |
| 20100024755 | OPTICAL DISTRIBUTOR FOR A LASER-BASED IGNITION SYSTEM, AND METHOD FOR THE OPERATION THEREOF - An optical distributor for the distribution of light, in particular laser light, between at least one optical input and at least one of several optical outputs includes at least one movably disposed light guide and a positioning member for moving the at least one light guide, the movably disposed light guide being movable by the positioning member such that at least one of the optical inputs is connectable via the light guide to at least one of the optical outputs. | 02-04-2010 |
| 20100031909 | Spark Plug for an internal combustion engine and method for the operation thereof - A spark plug for an internal combustion engine having a light guide device for supplying the spark plug with optical radiant power. A sensor arrangement is at least partially integrated into the spark plug but disposed outside the light guide device, and is embodied for the acquisition of operating data of the spark plug and/or of a combustion chamber associated with the spark plug. | 02-11-2010 |
| 20100065000 | IGNITION DEVICE FOR AN INTERNAL COMBUSTION ENGINE - An ignition device for an internal combustion engine, particularly of a motor vehicle, having a laser device which has a laser-active solid and which generates a laser beam, preferably in the form of a laser pulse, for eradiation into a combustion chamber, focusing optics for focusing the laser beam being allocated to the laser device. The laser beam has a beam profile that deviates from being circular. A pumping light source is provided for applying pumping light to the laser device. The beam profile of the laser beam and/or of the pumping light is rectangular or linear and/or circular and/or dumbbell-shaped. | 03-18-2010 |
| 20100139599 | HEATING DEVICE INCLUDING CATALYTIC BURNING OF LIQUID FUEL - A heating device ( | 06-10-2010 |
| 20100212620 | Plasma igniter and ignition device for internal combustion engine - To provide a plasma igniter capable of generating a discharge such as a pulse streamer discharge in a large region even by application of a low voltage, implementing powerful ignition by pulse voltage application in two or more stages, improving an air-fuel ratio (A/F), and reducing a CO | 08-26-2010 |
| 20100218739 | METHOD FOR OPERATING AN IGNITION DEVICE FOR AN INTERNAL COMBUSTION ENGINE - A method is for operating an ignition device for an internal combustion engine, particularly of a motor vehicle, having a laser device which has a laser-active solid having a passive Q-switch and which generates a laser pulse for eradiating into a combustion chamber, and having a pumping light source which provides a pumping light for the laser-active solid of the laser device. A point of ignition, at which the laser pulse is generated, is regulated to a specifiable setpoint value by setting a radiation intensity of the pumping light and/or a pumping duration and/or a pumping starting time and/or a wavelength of the pumping light. | 09-02-2010 |
| 20100263615 | IGNITION DEVICE FOR A LASER IGNITION SYSTEM OF AN INTERNAL COMBUSTION ENGINE - An ignition laser for an internal combustion engine is provided, wherein the combustion chamber window is connected to a housing of the ignition laser in a gas-, pressure-, and temperature-resistant manner. | 10-21-2010 |
| 20100275867 | Laser device for the ignition device of an internal combustion engine - A laser device of a so-called laser ignition is provided, in which the heat dissipation is improved between a combustion chamber window and a housing, and the cooling or temperature of the combustion chamber window is able to be adjusted within broad limits by simple modifications. | 11-04-2010 |
| 20100275868 | LASER MODULE - A laser module includes a housing and at least one laser device situated in the housing for generating laser pulses. The laser module has at least one primary sealing region and a secondary sealing region that is situated at least partially in the primary sealing region, and the laser device is situated within the secondary sealing region. | 11-04-2010 |
| 20100282195 | IGNITION DEVICE IN PARTICULAR FOR AN INTERNAL COMBUSTION ENGINE, AND METHOD FOR MANUFACTURING SAME - An ignition device, in particular for an internal combustion engine of a motor vehicle, having a laser device for generating laser pulses, and having an optical fiber device which is at least optically connected to the laser device for supplying the laser device with pumped light. The optical fiber device is configured and situated in the region of the laser device in such a way that radiation incident in the region of the laser device and/or in the region of a combustion chamber associated with the laser device may be injected into the optical fiber device. The disclosed configuration of the optical fiber device advantageously allow the radiation which is injected into the optical fiber device to be analyzed, in particular using a detector which is remotely situated, without having to provide additional, separate optical fiber devices for the radiation to be analyzed, because the radiation to be analyzed may be conducted directly via the same optical fiber that is already used for supplying pumped light. | 11-11-2010 |
| 20100282196 | METHOD FOR OPERATING A LASER AS AN IGNITION DEVICE OF AN INTERNAL COMBUSTION ENGINE - A method for operating a laser as an ignition device of an internal combustion engine, the laser including at least one laser crystal, a passive Q-switch and at least one pump device, particularly a laser diode, which optically pumps the laser crystal using pump radiation; at a temperature of the laser crystal below an operating boundary temperature, the pump radiation being changed, compared to a normal operation, in such a way that, compared to the normal operation, a greater radiation energy is converted to heat in the laser crystal. | 11-11-2010 |
| 20100282197 | CORONA TIP INSULATOR - This invention relates to a corona discharge ignitor used to ignite air/fuel mixtures in automotive applications and the like. To suppress an arc from forming when a voltage is applied to the ignitor, the corona discharge ignitor has various shapes and configurations, such as angular depressions or grooves, at the tip of the insulator. The shape and configuration of the tip provides a smaller radius which creates a more intensified electric field and provides better combustion. | 11-11-2010 |
| 20100282198 | CORONA IGNITION WITH SELF-TUNING POWER AMPLIFIER - A power amplifier circuit that has an inductor and capacitor connected to one end of the output winding of an RF transformer. The other end of the output winding is connected to a resistor that in turn is connected to ground. The transformer has two primary windings. Both primary windings have one end connected to a variable DC voltage supply. The other end of each primary winding is attached to a switch, such as a MOSFET. All three windings are wound around a core. Current flowing from the DC voltage supply to the switches causes a magnetic flux in the core. A voltage is generated on the secondary winding resistor. This voltage is fed back to the switches, controlling on and off timing. In this way the need to measure and record natural frequency is eliminated. | 11-11-2010 |
| 20100319643 | LASER IGNITION SYSTEM AND METHOD FOR INTERNAL COMBUSTION ENGINE - A laser beam ignition system for an internal combustion engine is provided. The laser beam ignition system comprises a laser configured to generate a laser beam, and a beam steering unit comprising a lens and a prism both configured to cooperatively transmit the laser beam to focus on an oxygenated fuel mixture supplied into a combustion chamber of the internal combustion engine. A beam steering unit and a method for igniting a fuel mixture in an internal combustion engine are also presented. | 12-23-2010 |
| 20100326388 | INDUCTION DRIVEN IGNITION SYSTEM - An induction driven ignition system with a heating element located near the combustion chamber of a reciprocating internal combustion engine. The heating element is adjacent an electrical conductor which receives current at frequencies between 100 kHz to 500 kHz. The induction driven ignition system causes the heating element to rapidly and accurately heat up to very high temperatures. The heating element may be positioned and arranged to provide combustion initiation over a wide area. | 12-30-2010 |
| 20110017162 | LASER DEVICE AND METHOD FOR OPERATING SAME - A method for operating a laser device which has a laser-active solid and a preferably passive Q-switch in which the laser device is acted upon by pumped light for generating a laser pulse. The radiation spontaneously emitted by the laser device is analyzed for drawing a conclusion about an operating state of the laser device, in particular about a laser pulse being generated. | 01-27-2011 |
| 20110023807 | LASER DEVICE AND METHOD FOR OPERATING SAME - A method for operating a laser device which has a laser-active solid and a preferably passive Q-switch in which the laser device is acted upon by pumped light for generating a laser pulse. According to the present invention, the pumped volume of the laser device acted upon by a pumped light, in particular of the laser-active solid, is changed. | 02-03-2011 |
| 20110041793 | LASER DEVICE AND OPERATING METHOD FOR THE LASER DEVICE - A method for operating a laser device, which has a laser-active solid-state body including a preferably passive Q switch, in which pumped light is applied to the laser device in order to generate a laser pulse. The laser device and/or an optical link between the laser device and a pumped light source supplying the pumped light is at least partially acted upon by an optical test pulse in order to check the integrity of a/the optical link between the laser device and a pumped light source supplying the pumped light. | 02-24-2011 |
| 20110048355 | OPTIMIZATION OF THE EXCITATION FREQUENCY OF A RADIOFREQUENCY PLUG - A device for generating a radiofrequency plasma, which includes a supply module applying, on an output interface, an excitation signal at a setpoint frequency, adapted for generating a spark at the output of a plasma-generation resonator connected to the output interface of the power module, and a control module supplying the setpoint frequency to the power module upon a command for generating the radiofrequency plasma. The control module is configured to determine an optimal excitation frequency, to adapt the setpoint frequency to the resonance conditions of the device after formation of the spark. | 03-03-2011 |
| 20110061623 | LASER IGNITION DEVICE FOR COMBUSTION ENGINE - The invention provides a laser ignition device for a combustion engine, especially a four-stroke engine, powered by ethyl alcohol, methyl alcohol and petrol, kerosene and benzol (benzene). The device of the invention is provided, in addition to a pulse laser, with a housing ( | 03-17-2011 |
| 20110120404 | Laser spark plug - A laser spark plug device for an internal combustion engine includes a prechamber for receiving an ignitable medium and at least one overflow channel providing a fluid connection between an internal space of the prechamber and an external space surrounding the prechamber. The at least one overflow channel is configured such that when a fluid flows through the overflow channel into the internal space of the prechamber, the result is a fluid flow having at least one eddy which rotates on an eddy axis forming an angle of more than approximately 45° with a longitudinal axis of the laser spark plug device. | 05-26-2011 |
| 20110146607 | Quarter Wave Coaxial Cavity Igniter for Combustion Engines - An apparatus and method for igniting combustible materials in a combustion chamber of a combustion engine using corona discharge plasma from a quarter wave coaxial cavity resonator. A tapered quarter wave coaxial cavity resonator is adapted to mate with the combustion chamber. The quarter wave coaxial cavity resonator is coupled with an energy shaping means, or waveform generator, that develops the appropriate waveform for triggering radio frequency oscillations in the quarter wave coaxial cavity resonator. A loop coupling is angularly positioned within the quarter wave coaxial cavity resonator to match impedances between the quarter wave coaxial cavity resonator and the energy shaping means, or waveform generator. Radio frequency oscillations produce a standing wave in the quarter wave coaxial cavity resonator and a corona discharge plasma develops near the center conductor. The corona discharge plasma developed near the center conductor ignites the combustible materials in the combustion chamber of the combustion engine. | 06-23-2011 |
| 20110180030 | EFFICIENCY ENHANCEMENT TO A LASER IGNITION SYSTEM - A method for a laser ignition system to operate in at least two modes based on a four-stroke combustion cycle, wherein laser light energy is generated to ignite an air/fuel mixture for combustion and may be additionally used for heating cylinder walls, such as during a cold start, at times other than when the laser ignites an air/fuel mixture for combustion. | 07-28-2011 |
| 20110185996 | Flow Protection Device on a Laser Spark Plug for Improving the Ignition Behavior - A laser spark plug, in particular for an internal combustion engine, having an arrangement or structure for coupling, especially focusing, laser radiation in or on an ignition point, including an arrangement or structure for influencing a fluid flow disposed in an end region of the laser spark plug on the side of the combustion chamber, which constitute an essentially sleeve-shaped extension of the laser spark plug in the direction of the combustion chamber, in which the arrangement or structure for influencing the fluid flow is configured to influence the fluid flow in the region of the ignition point. | 08-04-2011 |
| 20110203542 | IGNITION DEVICE FOR A LASER IGNITION OF AN INTERNAL COMBUSTION ENGINE - An ignition laser is provided for an internal combustion engine, in which the combustion chamber window is connected to a housing of the ignition laser in a gas-resistant, pressure-resistant, and temperature-resistant manner. Furthermore, a pressure relief bore is present which effectively prevents a pressure increase in the housing of the ignition laser. | 08-25-2011 |
| 20110203543 | MONITORING OF THE EXCITATION FREQUENCY OF A RADIOFREQUENCY SPARK PLUG - A radiofrequency plasma generating device, including: a control module generating a control signal at a control frequency, a power supply circuit including a breaker switch controlled by the control signal, the breaker switch applying an excitation signal to an output of the power supply circuit at the control frequency defined by the control signal, a resonator exhibiting a resonant frequency of greater than 1 MHz, connected to the output of the power supply circuit and adapted to generate a voltage for making a spark when it is excited by the excitation signal, and a mechanism monitoring the control module and configured to modify the frequency of the resonator excitation signal in a manner synchronous with the control signal, during application of the excitation signal. | 08-25-2011 |
| 20110253089 | HF Ignition Device - The invention relates to an HF ignition device for igniting a fuel in an internal combustion engine with a corona discharge, comprising an ignition electrode, an insulating body on which the ignition electrode is mounted, the insulating body having a continuous channel in which an inner conductor leading to the ignition electrode is disposed, and an outer conductor which encloses the insulating body and, in combination with a section of the inner conductor, forms a capacitor, wherein the channel is filled with an electrically conductive filling material which encloses at least one conductor piece that forms at least one section of the inner conductor. | 10-20-2011 |
| 20110259291 | LASER DEVICE AND OPERATING METHOD FOR IT - In a method for operating a laser device, which has a laser-active solid having a passive Q-switch, the laser device is acted upon using pumping light in such a way that a specifiable curve over time of the inversion density comes about in the laser-active solid, as a result of which an especially precise control of the time behavior is achieved during the generation of passively Q-switched laser pulses. | 10-27-2011 |
| 20110259292 | LASER-INDUCED SPARK IGNITION FOR AN INTERNAL COMBUSTION ENGINE - A laser ignition device is provided for an internal combustion engine, having an ignition laser in which a combustion chamber window has an orifice plate arranged in front of it. | 10-27-2011 |
| 20110297116 | Igniter for Igniting a Fuel/Air Mixture in a Combustion Chamber, in Particular in an Internal Combustion Engine, by Creating a Corona Discharge - Described is an igniter comprising an arrangement composed of an ignition electrode, an outer conductor coaxially enclosing the ignition electrode, and an electric insulator disposed between the ignition electrode and the outer conductor, via which insulator the ignition electrode and the outer conductor are interconnected, for igniting a fuel/air mixture in a combustion chamber, in particular in an internal combustion engine comprising one or more combustion chambers which are delimited by walls that are at ground potential, by creating a corona discharge in an area surrounding the tip of the ignition electrode. According to the invention, the ratio of the outer diameter d of the ignition electrode and the inner diameter D of the outer conductor is in the range of 0.3 to 0.44. | 12-08-2011 |
| 20110308489 | LASER SPARK PLUG AND PRECHAMBER MODULE FOR SAME - A laser spark plug, in particular for an internal combustion engine of a motor vehicle, is described. A connection arrangement is provided in an end region of the laser spark plug facing the combustion chamber. The connection arrangement allow the laser spark plug to be connected to a prechamber module. | 12-22-2011 |
| 20120012077 | IGNITION APPARATUS, INTERNAL-COMBUSTION ENGINE, IGNITION PLUG, PLASMA EQUIPMENT, EXHAUST GAS DEGRADATION APPARATUS, OZONE GENERATING/STERILIZING/DISINFECTING APPARATUS, AND ODOR ELIMINATING APPARATUS - Stable and highly efficient combustion/reaction is provided, even when fuel ratio of mixture is decreased and combustion/reaction of the lean mixture is performed in a heat engine such as a reciprocating engine, for controlling dielectric constant of mixture in a combustion/reaction chamber | 01-19-2012 |
| 20120024250 | IGNITION LASER - An ignition laser, includes a laser-active solid-state body, a housing and a combustion chamber window, the housing having an inner sleeve and an outer sleeve. An insert is provided between the inner sleeve and the outer sleeve, the insert and the combustion chamber window being joined sealingly and integrally. | 02-02-2012 |
| 20120024251 | Gas engine having a laser ignition device - An internal combustion engine, in particular a gas engine, is described, which is equipped with a laser ignition device, and the combustion chamber has an essentially point-symmetrical shape at the ignition point. | 02-02-2012 |
| 20120037108 | Laser Spark Plug - A laser spark plug, in particular for an internal combustion engine of a motor vehicle is described. A fixing arrangement is provided in an end region of the laser spark plug facing the combustion chamber. The fixing arrangement allows an optical component to be detachably fixed to the laser spark plug. | 02-16-2012 |
| 20120055430 | Ignition System and Method for Igniting Fuel in a Vehicle Engine by means of a Corona Discharge - The invention relates to an ignition system for the ignition of fuel in a vehicle engine by means of a corona discharge, comprising a voltage converter which has an input side for connection to a voltage source, and an output side, and an electric oscillating circuit connected to the secondary side for HF excitation of an ignition electrode. According to the invention, by an energy accumulator for charging from the electrical system of a vehicle, the energy accumulator being connected to the input side of the voltage converter to even out the electrical system load. The invention furthermore relates to a method according to the invention for the ignition of fuel. | 03-08-2012 |
| 20120055431 | LASER SYSTEM AND IGNITION DEVICE FOR AN INTERNAL COMBUSTION ENGINE - A laser system for an ignition device of an internal combustion engine, in particular of a motor vehicle, having a first laser device and a second laser device situated downstream from the first laser device and optically connected to it, the first laser device being designed for generating pump light for optically pumping the second laser device. The first laser device has a reflecting means in an area which is optically connected to the second laser device, the reflecting arrangement being designed for reflecting radiation generated by the second laser device. | 03-08-2012 |
| 20120055432 | EFFICIENCY ENHANCEMENT TO A LASER IGNITION SYSTEM - A method for a laser ignition system to operate in at least two modes based on a four-stroke combustion cycle, wherein laser light energy is generated to ignite an air/fuel mixture for combustion and may be additionally used for heating cylinder walls, such as during a cold start, at times other than when the laser ignites an air/fuel mixture for combustion. | 03-08-2012 |
| 20120132167 | LASER IGNITION DEVICE - An ignition laser includes a laser-active solid body, a housing, and a combustion chamber window. The heat value of the ignition laser is settable in accordance with the requirements of the internal combustion engine. | 05-31-2012 |
| 20120145107 | LASER SPARK PLUG FOR AN INTERNAL COMBUSTION ENGINE - A laser spark plug is described for an internal combustion engine. According to the system, at least one volume Bragg grating element is situated in a beam path of the laser spark plug. | 06-14-2012 |
| 20120180742 | CORONA IGNITION SYSTEM HAVING SELECTIVE ENHANCED ARC FORMATION - A corona discharge ( | 07-19-2012 |
| 20120192824 | CORONA IGNITER HAVING IMPROVED GAP CONTROL - A corona igniter | 08-02-2012 |
| 20120199088 | CORONA IGNITION DEVICE HAVING ASYMMETRIC FIRING TIP - A corona ignition system for providing a corona discharge ( | 08-09-2012 |
| 20120210968 | CORONA IGNITER WITH IMPROVED CORONA CONTROL - A corona igniter | 08-23-2012 |
| 20120210969 | LASER SPARK PLUG FOR AN INTERNAL COMBUSTION ENGINE - The invention relates to a laser spark plug, comprising a laser light-producing device ( | 08-23-2012 |
| 20120279468 | CORONA IGNITER HAVING CONTROLLED LOCATION OF CORONA FORMATION - A corona igniter | 11-08-2012 |
| 20120279469 | LASER SPARK PLUG - A laser spark plug, e.g., for an internal combustion engine of a motor vehicle or a heavy-duty gas engine, has an antechamber for receiving an ignitable medium and a combustion chamber window which separates the antechamber from a part of the laser spark plug facing away from the combustion chamber. At least one flow-guiding element is provided in the antechamber and is situated in such a way that it deflects a fluid flow, which occurs in the antechamber and moves toward the combustion chamber window, into a radially inner direction. | 11-08-2012 |
| 20120312267 | Laser ignition system - A laser device for a laser ignition system for an internal combustion engine, in particular of a motor vehicle or a stationary engine, including a laser oscillator, the laser oscillator having a first laser-active solid, an optical Q-switch, and an output mirror which is partially reflective for a light to be generated by the laser device, in which the laser oscillator has another mirror which is partially reflective for the light to be generated by the laser device. | 12-13-2012 |
| 20130014717 | LASER IGNITION DEVICE FOR AN INTERNAL COMBUSTION ENGINEAANM Moenster; MathiasAACI StuggartAACO DEAAGP Moenster; Mathias Stuggart DEAANM Herden; WernerAACI GerlingenAACO DEAAGP Herden; Werner Gerlingen DEAANM Vogel; ManfredAACI DitzingenAACO DEAAGP Vogel; Manfred Ditzingen DE - A laser ignition device for an internal combustion engine, in particular of a motor vehicle, having a laser device for generating laser pulses, and having a pumped light source for optically pumping the laser device. A photodiode system is situated in the area of an optical connection between the pumped light source and the laser device in such a way that pumped radiation generated by the pumped light source and the laser radiation generated by the laser device may each be irradiated at least partially onto a photodiode of the photodiode system. | 01-17-2013 |
| 20130047946 | LASER IGNITION SYSTEM - A laser device for a laser ignition system of an internal combustion engine includes a laser-active solid, an optical Q-switch, a first resonator in which at least the laser-active solid is situated, and a second resonator optically coupled to the first resonator. The length of the second resonator is set or modulated via actuators to optimize the ignition. | 02-28-2013 |
| 20130098323 | LASER SPARK PLUG - A laser spark plug device for an internal combustion engine includes a prechamber for receiving an ignitable medium and at least one overflow channel providing a fluid connection between an internal space of the prechamber and an external space surrounding the prechamber. The at least one overflow channel is configured such that when a fluid flows through the overflow channel into the internal space of the prechamber, the result is a fluid flow having at least one eddy which rotates on an eddy axis forming an angle of more than approximately 45° with a longitudinal axis of the laser spark plug device. | 04-25-2013 |
| 20130104827 | Laser-induced spark ignition for an internal combustion engine | 05-02-2013 |
| 20130112164 | LASER IGNITION APPARATUS - A laser ignition apparatus includes a housing that has a male-threaded portion for fixing the housing and a hexagonal portion for tightening the male-threaded portion. Between a combustion chamber-side end of the male-threaded portion and an anti-combustion chamber-side end of the hexagonal portion, there is defined a non-optical element arrangement region in which none of an introducing optical element, an enlarging optical element and a focusing optical element of the apparatus is arranged. At one of a combustion chamber-side end and an anti-combustion chamber-side end of the non-optical element arrangement region, there is formed a reference surface that extends perpendicular to an axial direction of the housing. One of the introducing optical element, the enlarging optical element and the focusing optical element is received in the housing in such a manner as to be elastically pressed against the reference surface from outside of the non-optical element arrangement region. | 05-09-2013 |
| 20130133602 | LASER-INDUCED SPARK IGNITION FOR AN INTERNAL COMBUSTION ENGINE - A laser spark plug for an internal combustion engine includes at least one element for guiding, shaping and/or generating laser radiation, a combustion chamber window and a housing. The housing has, on the opposite side of the combustion chamber window from the element, an aperture for the passage of the laser radiation guided, shaped and/or generated by the element into a prechamber disposed at the end of the housing on the combustion chamber side. At least one overflow channel is provided for a fluid connection between an internal space of the prechamber and a combustion chamber surrounding the prechamber. When a fluid flows into the internal space of the prechamber through the overflow channel, a fluid flow is obtained that enters the interior of the aperture at a minimum angle ε, in particular measured with respect to the longitudinal axis of the laser spark plug, of 45°. | 05-30-2013 |
| 20130139774 | LASER-INDUCED SPARK IGNITION FOR AN INTERNAL COMBUSTION ENGINE - A laser spark plug for an internal combustion engine has at least one laser unit for guiding, shaping, and/or for producing laser radiation, a combustion chamber window, and a housing which has, at the side of the combustion chamber window situated opposite the laser unit, a screen for the passage of the laser radiation guided, shaped, and/or produced by the laser unit into a combustion chamber, the screen having a first end facing the combustion chamber and a second end facing away from the combustion chamber, the inner contour of the screen having an extremal cross-section in a region that is situated at a distance both from the first and second ends. | 06-06-2013 |
| 20130146010 | ELECTRIC FIELD GENERATING APPARATUS FOR COMBUSTION CHAMBER - An electric field generating apparatus for a combustion chamber, may include an electric field generator located within a space of the combustion chamber where combustion flames may be produced to create electric fields within the space of the combustion chamber through an applied predetermined voltage, a lead-in wire connected to the electric field generator to flow the predetermined voltage to the electric field generator, and a high voltage providing unit connected to the lead-in wire for selectively applying the predetermined voltage to the lead-in wire in accordance with an output signal of a controller generated depending on an operation condition of an engine. | 06-13-2013 |
| 20130152893 | LASER-INDUCED SPARK IGNITION FOR AN INTERNAL COMBUSTION ENGINE - Laser spark plug for an internal combustion engine has at least one laser unit for guiding, shaping and/or generating laser radiation, further including a combustion chamber window, and a housing which has, on the opposite side of the combustion chamber window from the laser unit, an aperture for the passage of the laser radiation guided, shaped and/or generated by the laser unit into a combustion chamber, the length of the aperture being 4 mm or more. | 06-20-2013 |
| 20130186361 | COOLING DEVICE FOR A LASER SPARK PLUG - A cooling device for a laser spark plug. The cooling has a radially inner first contact area which is developed to establish a thermal contact to a housing of the laser spark plug via at least one first radially inner contact surface. The cooling device also has a radially outer second contact area which is developed to establish a thermal contact to a heat sink, in particular to an inner wall of a spark plug hole receiving the laser spark plug, via at least one first radially outer contact surface. A connector is provided, which is developed to establish a thermal contact between the first contact area and the second contact area. The cooling device is developed at least in part elastically in order to allow for a relative movement in a generally radial direction between at least the first contact surface and the second contact surface. | 07-25-2013 |
| 20130186362 | LASER IGNITION SYSTEM - A laser ignition system that is mounted on an internal combustion engine and that condenses a laser beam oscillated from a laser oscillator into an engine combustion chamber by using a condenser lens to generate a flame kernel with high energy and to perform ignition includes at least a highly-refractive optical element that refracts optical axes OPX | 07-25-2013 |
| 20130199483 | LASER IGNITION PLUG WITH AN ANTECHAMBER - A laser ignition plug includes an antechamber into which the laser ignition plug is configured to irradiate laser radiation. The antechamber defines at least two overflow ducts that realize a fluid connection between the antechamber and a spatial region surrounding the antechamber. The at least two overflow ducts, with regard to one or more of (i) the radial spacing thereof from a longitudinal axis of the antechamber, (ii) the axial spacing thereof from an end region, which faces toward the combustion chamber, of the antechamber, and (iii) the alignment and/or geometry thereof, are arranged asymmetrically with respect to the longitudinal axis of the antechamber. | 08-08-2013 |
| 20130199484 | Corona ignition device - What is described is a corona ignition device for igniting fuel in an internal combustion engine by generating a corona discharge, said corona ignition device comprising a housing, an insulator, which is held in the housing, a centre electrode, which is held in the insulator, and at least one ignition tip at an and of the centre electrode. The housing surrounds an interior, which has a cylindrical portion in which a cylindrical portion of the insulator sits. A widened interior portion adjoins at the end of the cylindrical interior portion remote from the ignition peak. The insulator has a thinner portion in the widened interior portion. The cylindrical portion of the insulator carries an electrically conductive coating, which ends before the thinner portion. | 08-08-2013 |
| 20130206091 | LASER IGNITION APPARATUS - In a laser ignition apparatus, a focusing optical element is configured to focus a pulsed laser light to a predetermined focal point in a combustion chamber of an engine. An optical window member is arranged on the combustion chamber side of the focusing optical element so as to separate the focusing optical element from the combustion chamber. A catoptric-light focal point, at which a catoptric light is to be focused, is positioned on the anti-combustion chamber side of a combustion chamber-side end surface of the optical window member. The catoptric light results from the reflection of the pulsed laser light by a pseudo mirror that is formed by the optical window member when the combustion chamber-side end surface thereof is fouled with contaminants. Further, the catoptric-light focal point falls in a region where no solid material forming either the focusing optical element or the optical window member exists. | 08-15-2013 |
| 20130255613 | LASER IGNITION DEVICE FOR AN INTERNAL COMBUSTION ENGINE AND OPERATING METHOD THEREFOR - A laser ignition device for an internal combustion engine, having a laser device, which has a laser-active solid body and a passive Q-switch, and having a pump light source for optically pumping the laser device. The pump light source has a plurality of surface-emitting semiconductor lasers. | 10-03-2013 |
| 20130276738 | laser spark plug and method for operating same - A laser spark plug for an internal combustion engine having a laser device, which includes a laser-active solid and a passive Q-switch, and having a pumped light source, which is configured to generate pumped radiation and to irradiate it onto the laser device. The pumped light source has a plurality of individual pumped light emitters at least two pumped light emitters each being activatable separately from one another. | 10-24-2013 |
| 20130291818 | LASER SPARK PLUG FOR AN INTERNAL COMBUSTION ENGINE AND OPERATING METHOD FOR THE SAME - A laser spark plug for an internal combustion engine has a laser device including a plurality of surface emitting semiconductor lasers for generating laser pulses. | 11-07-2013 |
| 20130291819 | HEATER AND GLOW PLUG INCLUDING THE SAME - A heater of one embodiment of this invention has a resistor having a folded shape, a pair of leads joined to each end of the resistor, an insulating base in which the resistor is buried in the front side thereof and the pair of leads are buried in the rear side thereof, in which the resistor and the leads are overlapped in a direction perpendicular to the axial direction of the leads at junctions between the resistor and the leads and the rear end of the junction between one end of the resistor and one of the leads is located rearward relative to the rear end of the junction between the other end of the resistor and the other lead. | 11-07-2013 |
| 20130298863 | IGNITION SYSTEM AND OPERATING METHOD FOR SAME - An ignition system is described, in particular for an internal combustion engine of a motor vehicle, having a laser spark plug, a pump module for supplying the laser spark plug with pump radiation, and an optical fiber device for transmitting the pump radiation from the pump module to the laser spark plug. At least two separate signal transmission devices which each extend at least partially along the optical fiber device, and an evaluation unit, which is designed to act on each of the signal transmission devices with a test signal, to evaluate a response signal of the signal transmission devices which results from the particular test signal, and from the response signal to deduce an operating state of the corresponding signal transmission device, are provided. | 11-14-2013 |
| 20130340696 | LASER IGNITION DEVICE FOR AN INTERNAL COMBUSTION ENGINE - A laser ignition device for an internal combustion engine, encompassing an ignition laser having a combustion chamber window, such that until startup of the laser ignition device, the combustion chamber window is equipped with a protective layer. | 12-26-2013 |
| 20140014053 | PLASMA DEVICE - In a plasma device | 01-16-2014 |
| 20140026839 | PLASMA GENERATION DEVICE AND INTERNAL COMBUSTION ENGINE - In a plasma generation device that generates electromagnetic wave plasma by emitting electromagnetic waves in a target space, the electromagnetic wave plasma is generated in a plurality of locations with a simple configuration and relatively low electromagnetic wave energy. The plasma generation device is provided with an antenna that emits electromagnetic waves supplied from an electromagnetic wave generator in the target space, a discharger that forcibly discharges free electrons from gas molecules in the target space, and an electric field concentration member that concentrates electric field of the electromagnetic wave emitted from the antenna. The electric field concentration member is arranged in non-contact relationship with the antenna. The plasma generation device causes the discharger to discharge free electrons and the antenna to emit electromagnetic waves, thereby generating electromagnetic wave plasma in the vicinity of the antenna and in the vicinity of the electric field concentration member. | 01-30-2014 |
| 20140041611 | PLASMA GENERATION DEVICE - To suppress the reflection of an electromagnetic wave from a load in a plasma generation device | 02-13-2014 |
| 20140041612 | LASER IGNITION DEVICE - A laser ignition device | 02-13-2014 |
| 20140048030 | PLASMA GENERATION DEVICE - In an plasma generation device | 02-20-2014 |
| 20140076257 | INTERNAL COMBUSTION ENGINE - In an internal combustion engine that causes a predetermined gas flow in a combustion chamber, discharge plasma generated by a discharge device is caused to effectively absorb energy of an electromagnetic wave emitted from an electromagnetic wave emission device. At a time when a discharge operation and an emission operation are simultaneously performed so as to ignite a fuel air mixture, an emitting position of the electromagnetic wave on an antenna during the emission operation is located downstream of the discharge gap in a direction of the gas flow at the discharge gap so as to face toward the discharge plasma that has been drifted due to the gas flow. | 03-20-2014 |
| 20140109855 | LASER SPARK PLUG - A laser spark plug for an internal combustion engine, in particular for a gas engine, comprising a laser crystal integrated into the laser spark plug and a combustion chamber optical means, wherein laser light pulses issuing from the laser crystal can be coupled by way of the combustion chamber optical means into a combustion chamber of the internal combustion engine, an optical laser light sensor being integrated into the laser spark plug, wherein the combustion chamber optical means is provided with a reflection surface which faces towards the laser light sensor—and is preferably curved—and is provided with a reflective mirroring, wherein at least a part of a laser light reflected at the reflection surface during the duration of a laser light pulse can be detected by the laser light sensor. | 04-24-2014 |
| 20140116369 | CORONA IGNITION DEVICE AND METHOD FOR PRODUCING AN IGNITION HEAD FOR A CORONA IGNITION DEVICE - The invention relates to a corona ignition device for igniting fuel in a combustion chamber of an engine by means of a corona discharge, comprising an insulator, a center electrode, which plugs into the insulator and carries an ignition head having a plurality of ignition tips, a coil, which is connected to the center electrode, and a housing, which surrounds the coil and into which the insulator plugs, wherein the ignition head has main body formed from sheet metal. In accordance with the invention, the ignition tips consist of a different material compared to the main body and are fastened to a side face of the main body. The invention also relates to an ignition head for such a corona ignition device and to a method for production thereof. | 05-01-2014 |
| 20140116370 | CORONA IGNITION DEVICE AND METHOD FOR PRODUCING AN IGNITION HEAD FOR A CORONA IGNITION DEVICE - The invention relates to corona ignition device for igniting fuel in a combustion chamber of an engine by means of a corona discharge, comprising an insulator, a center electrode, which plugs into the insulator and carries an ignition head having a plurality of ignition needles, and a housing, into which the insulator plugs. In accordance with the invention, the ignition needles and the center electrode plug into the ignition head. The invention also relates to a method for producing an ignition head for a corona ignition device, wherein a green compact of the ignition head is produced by injection molding of metal powder, and the green compact is sintered whilst ignition needles and/or a center electrode plug thereinto. | 05-01-2014 |
| 20140123924 | FUEL INJECTION SYSTEMS WITH ENHANCED CORONA BURST - Methods, systems, and devices are disclosed for injecting and igniting a fuel using corona discharge for combustion. In one aspect, a method to ignite a fuel in an engine includes injecting ionized fuel particles into a combustion chamber of an engine, and generating one or more corona discharges at a particular location within the combustion chamber to ignite the ionized fuel particles, in which the generating includes applying an electric field at electrodes configured at a port of the combustion chamber, the electric field applied at a frequency that does not produce an ion current or spark on or between the electrodes. | 05-08-2014 |
| 20140123925 | CORONA IGNITION DEVICE - The invention relates to a corona ignition device for igniting fuel in a combustion chamber of an engine by means of a corona discharge, comprising an insulator, which has a continuous channel, a central electrode, which plugs into the channel of the insulator and leads to at least one ignition tip, a glass seal, which seals in the channel a gap between the central electrode and the insulator, and a housing, into which the insulator plugs. In accordance with the invention, the central electrode has a sealing face, which, together with a sealing face of the insulator, forms a seat, and an annular air gap that is open towards the ignition tip is provided in an end portion of the channel, facing the ignition tip, between the central electrode and the insulator. | 05-08-2014 |
| 20140130761 | LASER SPARK PLUG AND OPERATING METHOD FOR SAME - A laser spark plug, in particular for an internal combustion engine, includes a prechamber for accommodating an ignitable medium and means for applying laser radiation to an ignition point situated in the prechamber. The means are fashioned such that the laser radiation is focused onto at least one ignition point that, given a division of the prechamber into three partial regions that are approximately equal in volume and that extend axially away from an end face of the laser spark plug adjoining the prechamber and are separated from one another by imaginary planes situated essentially parallel to the end face, is situated in the partial region adjoining the end face or in a central partial region adjacent to said partial region, preferably in the partial region adjoining the end face. | 05-15-2014 |
| 20140165945 | LASER SPARK PLUG - A laser spark plug, e.g., for an engine, includes a prechamber that accommodates an ignitable medium, an arrangement for radiating laser radiation onto an ignition point in the prechamber, at least one crossflow channel that enables a fluid connection between an internal space of the prechamber and an external space, and a screen arranged between the radiating arrangement and the prechamber with an outlet opening for entry of the laser radiation into the prechamber. The at least one crossflow channel is arranged to provide a fluid flow therethrough and into the prechamber, such that the direction of flow forms an angle of a maximum of approximately 30° with a longitudinal axis of the prechamber, and the flow is directed into a spatial region of the prechamber that is situated essentially predominantly, preferably completely, outside a central region of the outlet opening of the screen. | 06-19-2014 |
| 20140174392 | INTRA-EVENT CONTROL STRATEGY FOR CORONA IGNITION SYSTEMS - The invention provides a system and method for controlling corona discharge and arc formations during a single corona event, i.e. intra-event control. A driver circuit provides energy to the corona igniter and detects any arc formation. In response to each arc formation, the energy provided to the corona igniter is shut off for short time. The driver circuit also obtains information about the arc formations, such as timing of the first arc formation and number of occurrences. A control unit then adjusts the energy provided to the corona igniter after the shut off time and during the same corona event based on the information about the arc formations. For example, the voltage level could be reduced or the shut-off time could be increased to limit arc formations and increase the size of the corona discharge during the same corona event. | 06-26-2014 |
| 20140182538 | INTER-EVENT CONTROL STRATEGY FOR CORONA IGNITION SYSTEMS - The invention provides a system and method for controlling corona discharge. A driver circuit provides energy to the corona igniter and detects any arc formation. Optionally, in response to each arc formation, the energy provided to the corona igniter is shut off for a short time to dissipate the arc. Once the arc dissipates, the energy is applied again to restore the corona discharge. The driver circuit obtains information relating to the corona discharge, such as timing and number of arc formations. A control unit adjusts the energy provided to the corona igniter, shut-off time, or the duration of the corona event based on the information. The adjusted energy levels and duration are applied during subsequent corona events. For example, the voltage level could be reduced or the shutoff time could be increased to limit arc formations and increase the size of the corona discharge during the subsequent corona events. | 07-03-2014 |
| 20140202411 | PLASMA GENERATING DEVICE, AND INTERNAL COMBUSTION ENGINE - To downsize an electromagnetic wave generation device in a plasma generation device that generates electromagnetic wave plasma by emitting to a target space an electromagnetic wave amplified by means of a solid state amplifying element. The plasma generation device includes the electromagnetic wave generation device that outputs the electromagnetic wave amplified by means of the solid state amplifying element, and an emission antenna for emitting the electromagnetic wave outputted from the electromagnetic wave generation device to the target space. The plasma generation device causes the emission antenna to emit the electromagnetic wave to the target space, thereby generating the electromagnetic wave plasma. The plasma generation device has a characteristic that an output waveform of the electromagnetic wave generation device has a peak during a rise, and is adapted to output the electromagnetic wave to the emission antenna without reducing the peak during the rise of the output waveform. | 07-24-2014 |
| 20140202412 | INTERNAL COMBUSTION ENGINE - The present invention aims at effectively improving a propagation speed of a flame utilizing an electromagnetic wave in an internal combustion engine that promotes combustion of an air fuel mixture utilizing the electromagnetic wave. The present invention is directed to an internal combustion engine including: an internal combustion engine main body formed with a combustion chamber; and an ignition device that ignites the air fuel mixture in the combustion chamber, wherein combustion cycles, in which the ignition device ignites and combusts the air fuel mixture, are repeated. The internal combustion engine further includes: an electromagnetic wave emission device that emits an electromagnetic wave to the combustion chamber from the emission antenna; a flame propagation estimation part that performs an estimation operation of estimating a propagation condition of a flame while the flame is propagating in the combustion chamber; and a control unit that controls the electromagnetic wave emission device based on an estimation result of the estimation operation. | 07-24-2014 |
| 20140216380 | INTERNAL COMBUSTION ENGINE AND PLASMA GENERATION PROVISION - An internal combustion engine has an internal combustion engine body formed with a combustion chamber and an ignition device that ignites an air-fuel mixture in the combustion chamber. Repetitive combustion cycles, including ignition of the air-fuel mixture by the ignition device and combustion of the air-fuel mixture, are executed. The internal combustion engine further has an electromagnetic (EM) wave-emitting device that emits EM radiation to the combustion chamber; a plurality of receiving antennas located on a zoning material that defines the combustion chamber, where the antennas resonate to the EM radiation emitted to the combustion chamber from the EM wave-emitting device; and a switching means that switches the receiving antenna resonating to the EM radiation emitted to the combustion chamber from the EM wave-emitting device among the plurality of receiving antennas. | 08-07-2014 |
| 20140216381 | INTERNAL COMBUSTION ENGINE - An internal combustion engine includes an internal combustion engine body formed with a combustion chamber, and an ignition device to ignite an air-fuel mixture in the combustion chamber. Repetitive combustion cycles, including the ignition of the air-fuel mixture by the ignition device and combustion of the air-fuel mixture, are executed. The internal combustion engine further has an electromagnetic (EM) wave-emitting device that emits EM radiation to the combustion chamber; a plurality of receiving antennas located on an outer circumference side of the zoning material that defines the combustion chamber; antenna which resonate with to the EM radiation that is emitted into the combustion chamber from the EM-wave-emitting device; and a control means which controls the EM-wave-emitting device such that the radiating antenna emits EM radiation into the combustion chamber while a flame caused by the ignition of the air-fuel mixture propagates. | 08-07-2014 |
| 20140216382 | CORONA IGNITION DEVICE - The invention relates to a corona ignition device for igniting fuel in a combustion chamber of an engine by means of a corona discharge, said corona ignition device comprising an insulator, a center electrode, which is held in the insulator, a housing, in which the insulator is held, and coil turns, which are disposed in a cylindrical main part of the housing and are connected to the center electrode. According to an aspect of this disclosure, the housing widens on the side of the main part remote from the insulator and further coil turns are disposed there, in a wider housing part. | 08-07-2014 |
| 20140216383 | LASER SPARK PLUG AND COOLER FOR A LASER SPARK PLUG - A laser spark plug configured to be installed into a plug shaft of an internal combustion engine, and to focus laser ignition energy into the combustion chamber via combustion chamber-side, and thus proximal end, of the laser spark plug has, at a distal end of the laser spark plug opposite to the proximal end, a connecting unit for detachable mechanical and thermal connection to a cooler, the connecting unit being designed to permit the connecting and the disconnecting of the cooler when the laser spark plug is installed in the plug shaft. | 08-07-2014 |
| 20140238329 | METHOD AND DEVICE FOR OPERATING A LASER SPARK PLUG - In a method for operating a laser spark plug, the laser spark plug is actuated using an actuating device, in order to generate at least one laser ignition pulse, at least one variable characterizing the laser ignition pulse is ascertained using measuring techniques, and, from the at least one variable characterizing the laser ignition pulse, an operating condition of the laser spark plug is inferred. | 08-28-2014 |
| 20140261270 | WEAR PROTECTION FEATURES FOR CORONA IGNITER - A corona igniter comprises an electrode with a central extended member extending along a central axis and a crown extending radially outwardly from the central extended member. The central extended member has an extended length and the crown has a crown length. The extended length is greater than the crown length such that the extended member approaches a piston more closely than the crown. In addition, the firing tips of the crown each present a first spherical radius which is less than a second spherical radius of the central extended member. Thus, if arcing occurs, it forms from the central extended member, rather than from the crown. Accordingly, the firing tips of the crown experience less wear and remain sharp. In addition, due to the sizes of the spherical radii, corona discharge is more likely to form from the firing tips than from the central extended member. | 09-18-2014 |
| 20140261271 | PLASMA GENERATION PROVISION, INTERNAL COMBUSTION ENGINE AND ANALYSIS PROVISION - To make it easy to adjust a location of an emission antenna in a plasma generation device that generates plasma by a discharge and enlarges the plasma by an electromagnetic wave. A plasma generation device | 09-18-2014 |
| 20140283779 | INTERNAL COMBUSTION ENGINE - The present invention aims at effectively emitting an electromagnetic wave to a combustion chamber from an emission antenna in an internal combustion engine that promotes combustion of an air fuel mixture utilizing the electromagnetic wave. The present invention is directed to an internal combustion engine including: an internal combustion engine main body formed with a combustion chamber; and an electromagnetic wave emission device that emits an electromagnetic wave to the combustion chamber from an emission antenna. The internal combustion engine promotes combustion of the air fuel mixture by way of the electromagnetic wave emitted to the combustion chamber. The emission antenna is provided in an insulating member and extends along the partitioning surface. The insulating member is provided on a partitioning surface that partitions the combustion chamber. A ground conductor is provided in the insulating member on a side opposite to the combustion chamber in relation to the emission antenna and is electrically grounded. | 09-25-2014 |
| 20140283780 | QUARTER WAVE COAXIAL CAVITY IGNITER FOR COMBUSTION ENGINES - An apparatus and method for igniting combustible materials in a combustion chamber of a combustion engine using corona discharge plasma from a quarter wave coaxial cavity resonator. A tapered quarter wave coaxial cavity resonator is adapted to mate with the combustion chamber. The quarter wave coaxial cavity resonator is coupled with an energy shaping means, or waveform generator, that develops the appropriate waveform for triggering radio frequency oscillations in the quarter wave coaxial cavity resonator. A loop coupling is angularly positioned within the quarter wave coaxial cavity resonator to match impedances between the quarter wave coaxial cavity resonator and the energy shaping means, or waveform generator. Radio frequency oscillations produce a standing wave in the quarter wave coaxial cavity resonator and a corona discharge plasma develops near the center conductor. The corona discharge plasma developed near the center conductor ignites the combustible materials in the combustion chamber of the combustion engine. | 09-25-2014 |
| 20140283781 | COMPACT ELECTROMAGNETIC PLASMA IGNITION DEVICE - A quarter wave coaxial cavity resonator for producing corona discharge plasma from is presented. The quarter wave coaxial cavity resonator has a folded cavity made of opposing concentric cavity members that are nested together to form a continuous cavity ending in a aperture. A center conductor with a tip is positioned in the cavity. The folded cavity advantageously permits the coaxial cavity resonator to resonate at a lower operating frequency than an unfolded quarter wave coaxial cavity resonator of the same length. Embodiments of the quarter wave coaxial cavity resonator use narrower apertures to reduce radiative losses, and include center conductors that are reactive load elements, such as helical coils. When a radio frequency (RF) oscillation is produced in the quarter wave coaxial cavity resonator, corona discharge plasma is formed at the tip of the center conductor. The corona discharge plasma can be used to ignite combustible materials in combustion chambers of combustion engines. | 09-25-2014 |
| 20140290613 | LASER SPARK PLUG - A laser ignition plug, comprising a pumped light source and a longitudinally pumped laser resonator, which are each arranged in the housing of the laser ignition plug, characterized by a cooling air inlet, a cooling air outlet and a cooling region connecting the cooling air inlet with the cooling air outlet, wherein the cooling region is surrounding the pumped light source at least in certain sectors. | 10-02-2014 |
| 20140299085 | INTERNAL COMBUSTION ENGINE - To reduce the amount of exhausted unburned fuel and further improve fuel efficiency of an internal combustion engine | 10-09-2014 |
| 20140305394 | Laser spark plug and cleaning method for same - A laser spark plug, in particular for an internal combustion engine, having a combustion chamber window through which laser radiation may be emitted from an interior of the laser spark plug toward an exterior, the laser spark plug having a component which surrounds at least part of the beam path of the laser radiation in the area of the exterior. In particular, the laser spark plug, in the area of the component, has at least one channel which has at least two orifice sections and which allows fluid communication between the orifice sections, a first orifice section being situated in the area of an outer surface of the combustion chamber window, and a second orifice section being situated in a radially outer area of the laser spark plug, in particular of the component. | 10-16-2014 |
| 20140318488 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE - Provided is a control device for an internal combustion engine, employing a microprocessor to control a load other than an ignition device, the control device being provided to an internal combustion engine in which is installed a magnet generator that has a magneto coil for successively generating, in association with revolution of the internal combustion engine, a first half wave voltage, a second half wave voltage of different polarity than the first half wave voltage, and a third half wave voltage of identical polarity to the first half wave voltage; and the magnet generator employing the second half wave voltage to drive the ignition device. The device is provided with an electricity storage element which draws excess power from the output that is output by the magnet generator for the purpose of driving the ignition device, and which is charged by the first and second half wave voltages, as well as being charged by the second half wave voltage as well at times that the internal combustion engine is in the exhaust stroke, in order to supply power to the load and to the microprocessor. The power source circuit is constituted to use the energy stored in this electricity storage element to generate power source voltage for presentation to the microprocessor and to the load other than an ignition device. | 10-30-2014 |
| 20150027394 | laser spark plug having an improved seal between the combustion chamber window and the casing - A casing for a laser spark plug, in particular, of an internal combustion engine of a motor vehicle, or of a stationary engine; the casing including at least one casing part and a combustion chamber window joined to the casing part to form a seal at least regionally; characterized in that at least one sealing element, whose coefficient of thermal expansion at an operating temperature of the laser spark plug is greater than the coefficient of thermal expansion of the casing part at the operating temperature of the laser spark plug, is provided between the casing part and the combustion chamber window. | 01-29-2015 |
| 20150040850 | CORONA IGNITION SYSTEM AND METHOD FOR CONTROLLING A CORONA IGNITION DEVICE - A corona ignition system that can be operated with relatively low expenditure in the vicinity of its resonant frequency. For each ignition, impedance and frequency values are stored in a data structure and are allocated to a respective voltage value. The data structure is complemented by an adjustment variable whose value specifies whether the present frequency value of the present engine cycle has been classified as too high or too low. The value of the adjustment variable is determined anew in each engine cycle. To that end, a comparison is made between a present frequency value with an earlier frequency value and a present impedance value with an earlier impedance value. Based upon the comparison, a value can be assigned to the adjustment value to cause a lower or higher frequency value of the corona discharge in the next cycle. | 02-12-2015 |
| 20150053163 | APPARATUS FOR OPERATING AT LEAST ONE LIGHT-EMITTING DIODE IN THE FORM OF A LASER DIODE - An apparatus operates at least one light-emitting diode in the form of a laser diode. The light-emitting diode is interconnected in series with the load section of a controllable semiconductor element and a current measuring resistor between a first supply voltage terminal and a second supply voltage terminal. The supply voltage terminals are the output connections of a voltage-regulating circuit in the form of a DC voltage boost converter which provides a supply voltage), and wherein a current-regulating circuit is provided for the current through the at least one light-emitting diode, whose actuator is the controllable semiconductor element. | 02-26-2015 |
| 20150068479 | PLASMA GENERATING DEVICE, AND INTERNAL COMBUSTION ENGINE - To simplify a configuration of a plasma generation device that generates plasma by means of an electromagnetic wave using thermal electrons as a trigger. The plasma generation device | 03-12-2015 |
| 20150075472 | CORONA IGNITION DEVICE - A corona ignition device for igniting fuel in an internal combustion engine by means of a corona discharge. The device comprises a center electrode, an insulator into which the center electrode is inserted, a coil body onto which a coil that is connected to the center electrode is wound, and a shielding cap which is fitted onto an end section of the coil body. The end section faces the insulator. According to this disclosure, the shielding cap comprises one or a plurality of slots. | 03-19-2015 |
| 20150096517 | HIGH FREQUENCY PLASMA IGNITION DEVICE - A high frequency plasma ignition device for the ignition of a fuel/air mixture in a combustion chamber of an internal combustion engine, having a series resonant circuit of an electric inductor and an electric capacitor connected in series, and a high frequency generator with a first electrical terminal and a second electrical terminal for the resonant excitation of the series resonant circuit, a first electrical contact point being provided in which one end of the capacitor and one end of the inductor are connected to one another electrically. An electrical connecting device connects the high-frequency generator to the inductor and to the capacitor such that an output signal of the high-frequency generator is applied to the series resonant circuit. An electric voltage is applied across the capacitor for igniting a plasma between free ends of a first and second electrode. An electric voltage is further applied to maintain the plasma after ignition. | 04-09-2015 |
| 20150114331 | METHOD FOR CONTROLLING A CORONA IGNITION DEVICE AND CORONA IGNITION DEVICE - A method for controlling a corona ignition device, which comprises an ignition electrode, at which a corona discharge is produced, a resonating circuit, which contains the ignition electrode, and a high-frequency generator connected to the resonating circuit, wherein the resonating circuit is excited with an AC voltage (U | 04-30-2015 |
| 20150114332 | IGNITION DEVICE FOR IGNITING FUEL/AIR MIXTURES IN A COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE BY CORONA DISCHARGE - Ignition device for igniting fuel/air mixtures in a combustion chamber of an internal combustion chamber by a corona discharge. The device includes an ignition electrode and an outer conductor surrounding the ignition electrode. The outer conductor has a front end and a rear end, and comprises an electrical insulator arranged between the ignition electrode and the outer conductor, from which insulator at least one tip of the ignition electrode protrudes. The at least one tip of the ignition electrode is arranged in a space that is shielded by a cap associated with the insulator, said cap having an inner side facing the insulator and an outer side facing away from the insulator as well as one or more holes, by means of which the shielded space is connected to a space arranged on the outer side of the cap. | 04-30-2015 |
| 20150322913 | PLASMA GENERATING APPARATUS AND INTERNAL COMBUSTION ENGINE - The plasma generating device has an electromagnetic wave oscillator that emits electromagnetic waves, and a control device that controls the electromagnetic wave oscillator, said plasma generating device being characterized by being provided with a step-up circuit that causes the electromagnetic waves that have been emitted from the electromagnetic wave oscillator to resonate, thereby generating a high voltage, and a discharge electrode that discharges the high voltage generated by the step-up circuit. | 11-12-2015 |
| 20150377207 | LASER IGNITION SYSTEM - A laser ignition system has: at least one arrangement for producing a pulsed laser beam; and at least one arrangement for focusing the produced pulsed laser beam onto a focus zone, e.g., in order to ignite a combustible gas mixture in an internal combustion engine or a burner. The laser ignition system is designed to produce a pulsed laser beam having a normed fluence volume greater than 0.1. | 12-31-2015 |
| 20160094003 | LASER DEVICE, IGNITION SYSTEM, AND INTERNAL COMBUSTION ENGINE - A laser device is provided including a light source configured to emit light, a laser resonator which the light emitted from the light source enters, a first optical element configured to increase a divergence angle of the light emitted from the laser resonator, a second optical element configured to collimate the light whose divergence angle is increased by the first optical element, and a third optical element configured to collect and condense the light collimated by the second optical element. | 03-31-2016 |
| 20160094006 | LASER DEVICE, IGNITION SYSTEM, AND INTERNAL COMBUSTION ENGINE - A laser device is provided including a light source configured to emit light, a light transmission member configured to transmit the light emitted from the light source, a plurality of optical elements disposed in an optical path of the light transmitted by the light transmission member, a laser resonator which the light passed through the plurality of optical elements enter, and an adjuster configured to adjust a position of at least one of the plurality of optical elements. | 03-31-2016 |
| 20160094009 | LASER DEVICE, IGNITION SYSTEM, AND INTERNAL COMBUSTION ENGINE - A laser device is provided including a surface emitting laser array configured to emit light, an optical system disposed in an optical path of light that is emitted from the surface emitting laser, a laser resonator which the light passed through the optical system enters, where the optical system includes a first optical element configured to collimate the light emitted from the surface emitting laser, and a second optical element configured to collect and condense the light collimated by the first optical element. | 03-31-2016 |
| 20160123293 | METAL SHELL OF GLOW PLUG FOR DIESEL ENGINES AND METHOD OF MANUFACTURING THE SAME - A metal shell of a glow plug mounted on an engine head of a diesel engine and a method of manufacturing the same are disclosed. The metal shell has an improved multi-stage structure, which allows the metal shell to be easily manufactured regardless of overall length of the metal shell and allows a metal shell section fastened to the engine head and at least one of the other metal shell sections to have different material strengths, thereby increasing fastening strength of the metal shell to the engine head and preventing warpage of the metal shell while improving productivity while reducing manufacturing costs. The metal shell of a glow plug for diesel engines according to the invention includes a plurality of metal shell sections disposed in an axial direction of the glow plug and having different material strengths. | 05-05-2016 |
| 20160123295 | Photo-Ignition Torch for Combustion Initiation and Gas Generation - A photo-ignition torch is provided including a light source configured to generate at least one of ultraviolet, visible, and infrared light. A photo-ignitable sub-micron particle mix is contained in capsule configured to receive the at least one of ultraviolet, visible, and infrared light generated by the light source or alternatively the photo-ignitable sub-micron particle mix is in direct contact with the light source. The exposure of the photo-ignitable sub-micron particle mix to the at least one of ultraviolet, visible, and infrared light initiates a photo-ignition process causing a release of burning byproducts of the photo-ignition process. | 05-05-2016 |
| 20160153421 | LASER SPARK PLUG HAVING AN IMPROVED SEAL BETWEEN THE COMBUSTION CHAMBER WINDOW AND THE CASING | 06-02-2016 |
| 20160195057 | LASER IGNITION SYSTEM FOR GASEOUS FUEL-POWERED ENGINE | 07-07-2016 |
