РЕЗОНАТОР-УСИЛИТЕЛЬ ВЫСОКОГО НАПРЯЖЕНИЯ ОПТИМИЗИРОВАННОЙ КОНСТРУКЦИИ ДЛЯ СИСТЕМЫ РАДИОЧАСТОТНОГО ЗАЖИГАНИЯ

Объектом настоящего изобретения является резонатор-усилитель высокого напряжения для системы радиочастотного зажигания, применяемой в двигателе внутреннего сгорания. Резонатор-усилитель содержит по меньшей мере два электрода (11, 12), катушку (2), расположенную в продолжении электродов вдоль продольной оси (Z), и средства (3) соединения, удерживающие катушку (2) и электроды (11, 12) в относительно неподвижном положении. Согласно изобретению, катушка (2) намотана вокруг замкнутой кривой (К), которая в свою очередь окружает продольную ось (Z). Технический результат - адаптация резонатора-усилителя для головок блоков цилиндров двигателя внутреннего сгорания любой геометрии. 8 з.п. ф-лы, 9 ил.

ПЛАЗМЕННАЯ ПОЛУПРОВОДНИКОВАЯ СВЕЧА ЗАЖИГАНИЯ

Плазменная полупроводниковая свеча зажигания содержит корпус с кольцевым боковым электродом, центральный электрод, концентрично закрепленный в корпусе через изолятор, и полупроводниковый элемент в виде кольца, соединенного с электродами. В свече выполнена полость, образованная рабочими поверхностями электродов и сопряженной с ними боковой поверхностью полупроводникового элемента и сообщенная через центральное отверстие бокового электрода с камерой сгорания. Центральный электрод выступает в указанную полость. Рабочие поверхности электродов и боковая поверхность полупроводникового элемента выполнены коническими с образованием кольцевого зазора, суженного в сторону центрального отверстия бокового электрода. В центральном электроде имеется канал для подвода плазмообразующего воздуха. Канал имеет несколько выходов на конической поверхности центрального электрода. В одномиз вариантов исполнения свечи зажигания каналы для подвода плазмообразующего воздуха проходят через изолятор и полупроводниковый ...

Plasmastrahl-Zündsystem.

Plasmastrahlzündkerze und Zündungssystem

PLASMA JET IGNITION PLUG

Igniters for gas turbine engines

The electrical igniter (40) has a cavity (46) formed by a tubular semiconductive pellet (51) which is contacted by an electrode (53) at one end, and by the outer shell of the igniter at its other end, forming the other electrode. The cavity (46) opens into combustion chamber (30) through a bore (50) in a tubular nose portion (42) of reduced diameter. When the electrodes are energised, discharge is produced in the cavity (46), and a plasma jet (60) is projected through the bore (50) into the engine combustion chamber (30). The narrow nose portion (42) enables a smaller aperture (25) to be used in the inner wall (21) of the combustion chamber. The semiconductive pellet may be omitted and a high voltage used to produce the plasma jet. ...

IGNITION DEVICES

PLASMA-PRODUCING PLUG

IGNITOR FOR LEAN BURN IGNITION SYSTEM

IGNITION SYSTEM FOR STRATIFIED FUEL MIXTURES

Systems and methods for igniting fuel in a combustion chamber of an internal combustion engine having at least one combustion chamber utilizing a traveling spark ignitor having at least two electrodes are disclosed. The ignitor is arranged in the combustion chamber such that ends of electrodes are substantially flush with walls of the at least one combustion chamber. A first voltage is provided between the electrodes to cause an initial breakdown of a gaseous air/fuel mixture present between the electrodes and, later, a follow- on current that travels between the electrodes after the initial breakdown is provided.

IGNITOR FOR LEAN BURN IGNITION SYSTEM

METHOD AND APPARATUS FOR ACCUMULATING FUEL PARTICLES IN A PORTION OF A COMBUSTION CHAMBER An improved method and apparatus for effecting the ignition of a relatively lean air-fuel mixture includes a pair of electrode gaps at which strong electrostatic fields of relatively long duration are established to accumulate fuel particles in a portion of a combustion chamber adjacent to a spark gap. In one embodiment of the invention, one of the electrode gaps is enclosed so that the atmosphere in this gap is not affected by changes in the pressure and composition of the atmosphere in the combustion chamber. By maintaining the atmosphere in the electrode gap separate from the atmosphere in the combustion chamber, an electrostatic field of substantially constant strength can be maintained at the enclosed electrode gap after the establishment of a corona discharge at an electrode gap exposed to the atmosphere in the combustion chamber. In another embodiment of the invention, both of the electrode ...

LEAN AIR-FUEL MIXTURE ATTRACTION METHOD AND ATTRACTION ELECTRODE PLUG IN ENGINE

An improved method and apparatus is provided to attract fuel particles in a lean air-fuel mixture to and about a spark gap of an ignition plug. The fuel particles are maintained there until the time of ignition. The resulting concentration of fuel particles enables the relatively lean air-fuel mixture to be ignited. An attraction electrode capable of attracting the fuel particles in the lean air-fuel mixture is arranged to provide even distribution of the fuel particles to the various cylinders in the engine.

CORONA IGNITER WITH GAS-TIGHT HF PLUG CONNECTOR

The invention relates to a corona igniter comprising a central electrode (7); an insulator (6) in which the central electrode (7) is plugged; a coil (5) which is connected to the central electrode (7); and a housing (4) in which the coil (5) is arranged. The housing (4) is closed by the insulator (6) at one end and has an HF plug connector at the other end, said HF plug connector having an inner conductor (2) which is connected to the coil (5) and an outer conductor (2) which is connected to the housing (4). According to the invention, the HF plug connector contains a glass body (3) which seals an annular gap between the inner conductor (2) and the outer conductor (1). The invention further relates to an HF plug connector suitable for such an HF igniter.

IGNITION SYSTEM WITH MOVING SPARK AND DISCHARGE INITIATING DEVICE THIS SYSTEM

TRAVELLING SPARK IGNITION SYSTEM AND IGNITOR THEREFOR

Igniter including a corona enhancing electrode tip

An igniter (20) emitting an electrical field including a plurality of streamers forming a corona includes a corona enhancing tip (52) at an electrode firing end (28). The corona enhancing tip (52) includes an emitting member (58) such as a wire, layer, or sintered mass, formed of a precious metal and disposed on a base member (54). The base member (54) is formed of a nickel alloy. The emitting member (58) has a lower electrical erosion rate and chemical corrosion rate than the base member (54). The emitting member (58) presents the smallest spherical radius of the corona enhancing tip (52) at the outermost radial point (56) to concentrate the electrical field emissions and provide a consistently strong electrical field strength over time.

For the corona of the igniter of the abrasion protection characteristics

Improvements brought to the spark plugs to ionizing element

Spark plug to ionization chamber for spark-ignition engines and similar engines

SPARK PLUG PROVIDED With an OXYGEN SENSOR

Spark plug for motor vehicles thermal engine, has anode disposed in central position and insulated from cathode by insulator, where insulator and end of cathode are separated by space

L'invention propose une bougie de génération de plasma, comprenant : -une tête de bougie présentant: -deux électrodes de génération de plasma (103, 106), et -un matériau diélectrique (100) séparant les électrodes; la bougie étant adaptée pour appliquer une tension alternative présentant une fréquence supérieure à 1 MHz et une amplitude entre crêtes supérieure à 5kV entre les électrodes, adaptée pour résister à l'application d'une telle tension, les électrodes étant adaptées pour former un plasma lors de l'application d'une telle tension entre elles. L'invention permet de générer un plasma de volume ou un plasma ramifié dans un volume important et de générer des décharges multidirectionnelles entre les électrodes, de générer un plasma à distance de l'isolant, de réduire la probabilité de génération d'un arc, et de réduire l'usure de l'anode.

PROCESS AND DEVICE OF CONCENTRATION BY ELECTROSTATIC WAY OF FUEL PARTICLES IN the COMBUSTION CHAMBER Of an ENGINE SPARK-IGNITION

SPARK PLUG WITH A SEMICONDUCTOR TEASER GAP

MICROWAVE SPARK PLUG FOR INJECTING MICROWAVE ENERGY

As a microwave spark plug (1) for injecting microwave energy into a combustion chamber of an engine, a microwave spark plug (1) according to the present invention comprises a long housing (2). The housing comprises: a long cavity (10) which forms a hollow conductor within the housing; and a microwave window (8) which is arranged in a first end part of the cavity within the housing (2). The microwave window (8) seals the hollow conductor with respect to the combustion chamber, and the cavity comprises a connection element (4) for a high frequency supply conductor, the connection element (4) being formed on a second end part of the cavity that is arranged oppositely to the microwave window (8). The connection element (4) comprises a high frequency inflow crosssection-shaped part (7) which is different from a high frequency outflow crosssection-shaped part formed on the microwave window. A transition part is continuously formed from the high frequency inflow crosssection-shaped part (7) in ...

SPARK PLUG FOR A HIGH-FREQUENCY IGNITION SYSTEM

The invention relates to a spark plug (100) for an internal combustion engine, in particular comprising a high-frequency ignition system, having a central electrode (28; 128), an earth electrode (12; 112), and an electrical insulator (18; 118) which is arranged between the central electrode (28; 128) and the earth electrode (12; 112), wherein a central electrode connection point (26; 126) for electrically connecting the central electrode (28; 128) to an ignition system is provided on the insulator (18; 118), wherein the central electrode (28; 128) and the earth electrode (12; 112) protrude beyond the insulator (18; 118) at an axial end (114) of the spark plug (100) and each form, with a part which axially protrudes beyond the insulator (18; 118), a central electrode end (140) and an earth electrode end (142), wherein the central electrode end (140) and the earth electrode end (142) are arranged and formed in such a way that an axial region (170) of a gap (146) is formed between said ends ...

CORONA IGNITION DEVICE WITH IMPROVED ELECTRICAL PERFORMANCE

A corona comprises a central electrode surrounded by an insulator, which is surrounded by a conductive component. The conductive component includes a shell and an intermediate part both formed of an electrically conductive material. The intermediate part is a layer of metal which brazes the insulator to the shell. An outer surface of the insulator presents a lower ledge, and the layer of metal can be applied to the insulator above the lower ledge prior to or after inserting the insulator into the shell. The conductive inner diameter is less than an insulator outer diameter directly below lower ledge such the insulator thickness increases toward the electrode firing end. The insulator outer diameter is also typically less than the shell inner diameter so that the corona igniter be forward-assembled.

CORONA IGNITER HAVING CONTROLLED LOCATION OF CORONA FORMATION

Method and apparatus for operating traveling spark igniter at high pressure

RADIOFREQUENCY PLASMA GENERATION DEVICE

Plasma-jet spark plug and ignition system

A plasma-jet spark plug includes a metal shell, an electrical insulator retained in the metal shell, a center electrode held in an axial hole of the electrical insulator to define a cavity by a front end face of the center electrode and an inner circumferential surface of the insulator axial hole and a ground electrode arranged on a front end of the electrical insulator. The ground electrode has an opening defining portion defining an opening for communication between the cavity and the outside of the spark plug. The opening defining portion is located radially inside of or in contact with a first imaginary circular conical surface where the first imaginary circular conical surface has an axis coinciding with an axis of the spark plug and a vertex angle of 120° opening toward a front end of the spark plug and passing through a front edge of the insulator axial hole.

SPARKING PLUG FOR INTERNAL COMBUSTION ENGINE

PROBLEM TO BE SOLVED: To provide a sparking plug for an internal combustion engine which reduces a voltage requirement, which is excellent in durability and low is cost. SOLUTION: A sparking plug 1 for an internal combustion engine comprises a central electrode 2, an insulator 3 which holds the central electrode 2 inside, a housing 4 which holds the insulator 3 inside, and a main grounding electrode 5 which is secured to the tip of the housing 4 and has a spark discharge gap 11 formed between the central electrode 2 and itself. A pocket 13 opened toward the tip side is formed between the housing 4 and the insulator 3. An inward projection 41 which protrudes inward is formed on the inside surface of the housing 4 that faces the pocket 13. The tip of the housing 4 is provided with an auxiliary grounding electrode 6 forming an auxiliary spark discharge gap 12 between the tip of the insulator 3 and itself. COPYRIGHT: (C)2009,JPO&INPIT ...

Zündkerze mit einer Magnetfeldeinrichtung zur Erzeugung eines Lichtbogens veränderlicher Länge

A variable length arc magnetic spark plug includes an insulating shell with a cavity 64, a pair of electrodes 26,28 (fig.3a) or 66,68 (fig.8) spaced by a diverging air gap so as to define a variable length air gap, and a pair of magnets 32,34 that produce a magnetic field in the air gap. The magnitude of an ignition signal supplied to the electrodes 26,28 directly affects the force acting on the arc to move or position the arc 10 relative to the magnetic field produced by the magnets 32 and 34 in accordance with well known field principles. Less current is required to produce a larger or longer arc with the inclusion of the magnets 32 and 34 in the vicinity of the air gap wherein the electrical arc is generated. The insulator may be made from silicon nitride, the electrodes fron steel or aluminium and the magnets from sumarium cobalt.

PLASMA JET IGNITION APPARATUS

IGNITERS FOR GAS TURBINE ENGINES

Improvements in ceramic semi-conductive material

A ceramic semi conductive composition comprises silicon carbide-major; tricalcium penta-aluminate-minor. Also present may be an oxide of a heavy metal, e.g. cobalt, manganese, nickel, chromium, iron, or molybdenum. The calcium aluminate can be incorporated as part of a mixture with alumina and silica, such a mixture forming 10-40 per cent of the whole composition. An organic binder may also be present Specification 724,211 is referred to.

A plasma ignition apparatus and a spark plug device

IGNITERS FOR GAS TURBINE ENGINES

RADIO FREQUENCY PLASMA SPARK PLUG FOR STEERED IGNITION OF COMBUSTION ENGINES

PLASMA GENERATING SPARK PLUG WITH INSERTED COIL

SPARK PLUG FOR A COMBUSTION ENGINE OF A MOTOR VEHICLE

VERFAHREN ZUM ZÜNDEN EINES BRENNBAREN GEMISCHES UND EINRICHTUNG HIEFÜR

Verfahren zum Zünden eines brennbaren Gemisches in einem Verbrennungsraum einer Brennkraftmaschine, bei dem innerhalb des Brennraumes zwischen zwei Elektroden (2,4) ein elektrisches Feld bis zu einer Dichte aufgebaut wird, bei der es zur Ausbildung eines Plasmas zwischen den beiden Elektroden (2, 4) kommt. Um auch bei hochverdichtenden Brennkraftmaschinen eine hohe Standzeit dieser Einrichtung zu ermöglichen, ist vorgesehen, daß zusätzlich ein magnetisches Feld aufgebaut wird, dessen Feldlinien im wesentlichen senkrecht zu den Feldlinien des elektrischen Feldes zwischen den Elektroden (2, 4) verlaufen.

MINIATURE RAILGUN ENGINE IGNITOR

DISCHARGE DEVICE

A discharge device for igniting a fuel-air mixture whereby fuel droplets in the mixture are electrically charged and, under the influence of an electric field, caused to congregate at a region thereby concentrating the mixture at said region, means being provided to create an arc at said region. A device of more general use is also disclosed.

TRAVELING SPARK IGNITION SYSTEM AND IGNITOR THEREFOR

A plasma ignitor, or plasma source, for igniting a combustible mixture in an internal combustion engine. The ignitor includes at least two spaced apart electrodes dimensioned and arranged such that an outwardly moving plasma is formed when a voltage is applied across the electrodes. The present invention is characterized by its efficient use of input electrical energy for driving the plasma ignitor and by an ignition plasma kernel which is several orders of magnitude larger than that produced by conventional spark plugs. Outward motion and expansion of the plasma kernel is produced by a Lorentz force thereon, arisi ng from interaction between the applied voltage and current between the electrodes, through the mixture, after initial plasma generation in the mixture. Use of very lean combustible mixtures, in which the dilution of the mixture is achieved by use of exhaust gas recirculation, is made possible by the present ignition system. Improvement in engine efficiency, and a major reduction ...

PLUG PROGRAMMABLE PLASMA IGNITION

ELECTRIC LIGHTER AND PROCEEDED Of LIGHTING OF GAS MIXTURES

PROCESS Of ATTRACTION OF the FUEL PARTICLES Of an AIR-FUEL WEAK MIXTURE

Allumeur électrique et procédé d'allumage de mélanges gazeux.

L'INVENTION CONCERNE LES ALLUMEURS ELECTRIQUES. ELLE SE RAPPORTE A UN ALLUMEUR ELECTRIQUE DANS LEQUEL UN PETIT TUBE CAPILLAIRE 3, RELIE A LA TUYAUTERIE 35 D'ALIMENTATION EN CARBURANT DU MOTEUR ASSOCIE, TRANSMET UNE TOUTE PETITE QUANTITE DE COMBUSTIBLE LIQUIDE DANS LA CAVITE 14, 15 DANS LAQUELLE UN PLASMA EST FORME PAR DECHARGE ENTRE LES ELECTRODES 11, 17. DE CETTE MANIERE, LA CONCENTRATION D'ESPECES A FAIBLE ENERGIE D'ACTIVATION EST ACCRUE DANS LE PLASMA PROJETE PAR L'ALLUMEUR. APPLICATION AUX ALLUMEURS DES MOTEURS A TURBINE A GAZ.

MULTI-EVENT CORONA DISCHARGE IGNITION ASSEMBLY AND METHOD OF CONTROL AND OPERATION

CORONA IGNITER WITH IMPROVED CORONA CONTROL

IGNITION SYSTEM AND SPARK PLUG

Long-life traveling spark ignitor and associated firing circuitry

An ignitor and associated electronics for igniting a combustible mixture in a cylinder of an internal combustion engine are described. The ignitor includes at least two spaced-apart electrodes that define a discharge gap. The space between the electrodes is substantially filled with a dielectric material. The dielectric material is spaced-apart from at least one of the electrodes to provide an air gap over which an initial voltage breakdown between the electrodes will occur. The air gap serves to vary the location of the initial breakdown and as a barrier to a short circuit between the electrodes due to carbon and/or metal deposit buildup on the dielectric material. The associated electronics provide a first potential between the electrodes that generates a plasma between the electrodes. Then the volume of the plasma is increased by the application of a second potential that creates a current through the plasma. The plasma, as well as the current passing through, is swept outward due to ...

SPARK PLUG WITH A LASER DEVICE IN A PRECHAMBER

The invention relates to a spark plug (100) for an internal combustion engine, with a prechamber (110) for receiving an ignitable medium and with a laser device (120) for loading an ignition point (ZP) which is arranged in the prechamber (110) with laser radiation (130). According to the invention, the laser device (120) has a laser-active solid-state body (124) with a passive Q-switch (126).

FUEL INJECTION DEVICE FOR MOTOR VEHICLE DIRECT INJECTION ENGINE

The present invention relates to a fuel injection device for a motor vehicle direct injection engine comprising at least one direct injector (20) for atomizing said fuel into a combustion chamber of said engine and at least one ignition means (40) for burning said atomized fuel in said combustion chamber. The fuel injection device further comprises means for electrifying said fuel, said electrifying means being incorporated into said at least one direct injector (20); said electrified pressurized fuel being atomized in said combustion chamber as it passes through at least one injection orifice (28) of said at least one direct injector (20); a voltage supply source (50) common to said means for electrifying said fuel and to said at least one ignition means (40) for burning said atomized fuel in said combustion chamber.

SPARK PLUG FOR MOTOR VEHICLE INTERNAL COMBUSTION ENGINE

The invention concerns a spark plug (1) for a motor vehicle internal combustion engine, substantially elongated in shape, comprising: two coaxial electrodes: an inner electrode (D) called central electrode (3) and an outer electrode called base (2) enclosing the central electrode (3); an electrically insulating annular block, called insulation (4) interposed between the central electrode (3) and the base (2) having an annular shoulder (5). The invention is characterized in that the insulation (4) comprises an annular groove (8) located at the shoulder (5).

CORONA IGNITION DEVICE WITH IMPROVED SEAL

An electrically conductive glass seal for providing a hermetic bond between an electrically conductive component and an insulator of a corona igniter is provided. The glass seal is formed by mixing glass frits, binder, expansion agent, and electrically conductive metal particles. The glass frits can include silica (SiO2), boron oxide (B2O3), aluminum oxide (Al2O3), bismuth oxide (Bi2O3), and zinc oxide (ZnO); the binder can include sodium bentonite or magnesium aluminum silicate, polyethylene glycol (PEG), and dextrin; the expansion agent can include lithium carbonate; and the electrically conductive particles can include copper. The finished glass seal includes the glass in a total amount of 50,0 to 90.0 weight (wt. %), and electrically conductive metal particles in an amount of 10.0 to 50.0 wt. %, based on the total weight of the glass seal.

PLASMA JET IGNITION SYSTEM

Improvement in conventional internal combustion ignition systems, which comprises a capacitor (42) connected parallel to the secondary winding (32) of the ignition transformer (28), and a bypass circuit (30) through which energy stored in the primary circuit is conveyed around the high impedance secondary winding of the circuit transformer to the spark plug after the high voltage at the secondary winding has fired an auxiliary gap (40) to complete the bypass circuit. The energy originally stored in the primary circuit is discharged at the plugs main spark gap (46) to produce a plasma jet ignition plume.

LONG LIFE TORCH JET SPARK PLUG

A long-life torch jet spark plug having a life span of approximately 50,000 to 100,000 miles is provided. This long-life torch jet spark plug has good erosion resistance against arcing and sparking, is relatively inexpensive to produce, and provides good electrical continuity. The spark plug comprises a tubular insulator body, a center electrode which is formed from either nickel or a nickel alloy and which is positioned within the tubular insulator body, and at least one hole which is formed at an end of the center electrode to form a firing tip for the torch jet spark plug. The use of nickel or a nickel alloy to form the center electrode significantly increases the life span of the torch jet spark plug from the 10,000-30,000 miles of currently used torch jet spark plugs to approximately 50,000 miles. This life span of the torch jet spark plug may be further increased to approximately 100,000 miles by the application of a noble metal insert layer to the firing tip area of the center electrode ...

COMBUSTION INITIATION SYSTEM

A combustion initiation system includes an initiating device for producing, containing and propelling a combustion initiating plasma having an energy density approaching that produced by combustion of the fuel itself, and is suitable for initiating combustion in relatively lean mixtures of various types of fuels. A high voltage power supply (28) delivers electrical energy by a coaxial cable (58) to the initiating device (20) which communicates with a fuel mixture in a combustion area such as the combustion chamber of an ordinary internal combustion engine. The initiating device includes a capacitive portion (36) for storing a large quantity of electrical energy therein derived from the power supply, and an electrode portion integral with the capacitive portion which comprises a pair of concentric, rod shaped electrodes (30, 44) for producing a high energy, umbrella shaped plasma discharge, using the inverse pinch technique. Due to the close proximity between the capacitive and electrode ...

IGNITION PLUG AND IGNITION DEVICE

An erosion of an electrode is prevented in a spark plug that performs an ignition by use of a spark discharge and an electromagnetic wave. The spark plug that a pulse voltage for a spark discharge and an electromagnetic wave supplied into the spark discharge as an energy are applied to a center electrode, the spark plug comprises the center electrode, an insulator including an axis hole into which the center electrode is engaged, a ground electrode configured to form a space between the ground electrode and the center electrode in which the spark discharge is generated, and a cylindrical conductor that is arranged at an outer circumference of the insulator, and an annular member is formed at an inner circumference of the cylindrical conductor and at a position where a distance from a distal end surface of the cylindrical conductor is within a range between 1/8 wavelength and 1/4 wavelength of the electromagnetic wave.

IGNITER

PURPOSE: To reduce the power to be thrown into a plasma plug thus to improve the utilization of energy by constructing such that high energy discharge is produced between an auxiliary electrode and a ground electrode through plasma jet to cause triggering. CONSTITUTION: A discharge electrode 21a and an orifice 10d are faced in a combustion chamber 24 and set at the arriving position of plasma jet gas 22. At first, spark discharge will occur where the plasma jet gas 22 to be discharged through the orifice 10d is ionized and having high conductivity to bring the space between the discharge electrode 21a and the ground electrode 10b of plasma plug 10 into same condition with dielectric breakdown. Since the charges stored in an auxiliary capacitor are discharged through a gap (10W20mm) between the diacharge electrode 21a and the ground electrode 21c, the majority of discharge energy can be thrown into the discharge gap resulting in improvement of firing performance of mixture gas. COPYRIGHT ...

ЛАЗЕРНАЯ СВЕЧА ЗАЖИГАНИЯ

Изобретение относится к лазерным свечам зажигания с форкамерой и может найти применение в транспорте и в теплоэнергетике. Задачи создания изобретения состоят в уменьшении габаритов воспламенителя и повышении эффективности искрового разряда. Техническим результатом является снижение расхода топлива и эмиссии вредных веществ и повышение надежности зажигания. Лазерная свеча зажигания, содержащая оптику и форкамеру, отделенную от оптики шайбой с центральным отверстием, и днище с выходными отверстиями в нем, выполнена с возможность одновременного создания коронного разряда и лазерного луча. 23 з.п. ф-лы, 24 ил.

СВЕЧА ЗАЖИГАНИЯ ЖАБРЕЕВА В.С. ДЛЯ МНОГОТОПЛИВНОГО ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

Изобретение относится к двигателестроению, в частности к оборудованию для зажигания топлива в многотопливных двигателях внутреннего сгорания, преимущественно для запуска двигателей в холодных условиях. Цель изобретения - обеспечение эффективного воспламенения топливовоздушной смеси при запуске двигателя в условиях низких температур. Свеча зажигания для многотопливного двигателя внутреннего сгорания, содержащая корпус, установленный в нем центральный электрод с керамическим изолятором и втулкой из магнитного электропроводного материала, а также размещенные вокруг втулки соосно с электродом по крайней мере две цилиндрические спирали, одна из которых одним концом закреплена на нижней части корпуса, другим - на диске, снабжена дополнительным трубчатым электродом, расположенным в изоляторе соосно с центральным электродом и соединенным с внутренней поверхностью втулки и торцом упомянутого диска, а вторая спираль одним концом соединена непосредственно с центральным электродом через отверстие в ...

СВЕЧА ЗАЖИГАНИЯ С РАДИОЧАСТОТНОЙ ПЛАЗМОЙ

... 1. Свеча зажигания (1) с радиочастотной плазмой, предназначенная для установки в камере (2) сгорания двигателя внутреннего сгорания и содержащая кольцевую оболочку (3) с основной осью D, сформированной из первого электропроводного материала и имеющей первый и второй торцы (4, 5) и круглую торцевую поверхность (6) с основной осью симметрии D, расположенной на первом торце (4) оболочки (3), а также центральный электрод (7), сформированный из второго электропроводного материала, продолжающийся вдоль основной оси D и содержащий внутренний участок (8), расположенный внутри указанной кольцевой оболочки (3), и внешний участок (9), расположенный снаружи указанной кольцевой оболочки (3), ближе к первому торцу (4) оболочки, чем ко второму (5), и электроизолирующий компонент (10) кольцевой формы, продолжающийся, по меньшей мере, вокруг внутреннего участка (8) центрального электрода (7), выполненный с возможностью установки между оболочкой (3) и электродом (7), причем изолирующий компонент (10) закрывает ...

Vorrichtung zur Zündung eines Kraftstoffgemisches, Übertragungselement zur Übertragung einer Hochvolt-Zündspannung, Zündeinrichtung und Schaltungseinrichtung

Die Erfindung betrifft eine Vorrichtung zur Zündung eines Kraftstoffgemisches. Vorgesehen ist eine Zündanlage (1) zur Erzeugung einer Hochvolt-Zündspannung, eine Schaltungseinrichtung (2), umfassend eine Schaltung (4) zur Überlagerung der Hochvolt-Zündspannung mit einem Hochfrequenz-Signal, eine in einem Motorblock (9) angeordneten Zündkerze (10) und ein Übertragungselement (6), aufweisend einen Hochvoltleiter (7), welcher in einem Isolationselement (8) geführt ist. Der Hochvoltleiter (7) dient zur Übertragung der mit dem Hochfrequenzsignal überlagerten Zündspannung an die Zündkerze (10). Vorgesehen ist ein elektrisch leitendes Abschirmungselement (18), welches den Hochvoltleiter (7) wenigstens entlang eines Abschnitts seiner Längsachse (A) elektromagnetisch schirmend umfasst. Das Abschirmungselement (18) ist elektrisch leitend mit einem Massepotential der Schaltungseinrichtung (2) verbunden und stellt eine Verbindung zwischen dem Massepotential der Schaltungseinrichtung (2) und einer Masseelektrode ...

Zündeinrichtung mit einer Zündelektrode

Zuendkerze

ZÜNDKERZE FÜR EINEN VERBRENNUNGSMOTOR

Ignition systems for gas turbine engines

... 1,018,963. Spark igniters. JOSEPH LUCAS (INDUSTRIES) Ltd. Jan. 6, 1964 [Nov. 12, 1962], No. 42599/62. Heading F4F. [Also in Division F1] A valve-controlled fuel passage 19 is provided having an outlet arranged to direct fuel on to the discharge surface of a surface discharge sparking plug for gas turbine engines. As shown, the solenoid operated valve 11 is energized to permit flow of fuel when the plug is energized. The lip 20 is formed with four radial passages communicating respectively with passages 19. A number of modifications are described.

A plasma ignition apparatus and a spark plug device

TWO-MODE IGNITION SYSTEM, WHICH USES TRAVELER SPARK FUZE

ZUENDKERZE.

IGNITION SYSTEM AND PERTINENT SPARK PLUG WITH FORWARD-DRIVING SPARK

SYSTEM AND PROCEDURE FOR THE PRODUCTION AND MAINTENANCE OF AN ELECTRICAL CORONA DISCHARGE FOR IGNITING AN INFLAMMABLE GAS MIXTURE

MULTIPLE SPARK PLUG WITH OPEN CHAMBER

SYSTEM AND PROCEDURE FOR THE PRODUCTION AND MAINTENANCE OF AN ELECTRICAL CORONA DISCHARGE FOR IGNITING AN INFLAMMABLE GAS MIXTURE

RADIO FREQUENCY PLASMA SPARK PLUG

Traveling spark ignition system and ignitor therefor

PROGRAMMABLE PLASMA IGNITION PLUG

An ignition plug wire for an internal combustion engine has an elongated conductor with a programmable capacitor module disposed in-line with the elongated conductor. The programmable capacitor module is configured to step up or convert the ignition voltage normally supplied by an ignition coil to a plasma voltage. An inventive ignition plug if configured such that the anode enclosed within the insulator includes or is replaced by a voltage converting module designed to convert the ignition voltage into a plasma voltage. The voltage converting module consists of a semiconductor circuit, a composite semiconductor material, or a capacitor.

DISCHARGE DEVICE

DUAL-MODE IGNITION SYSTEM UTILIZING TRAVELING SPARK IGNITOR

In one embodiment, a system for providing electrical energy to a traveling spark ignitor operating in an internal combustion engine is disclosed. The system may include a conventional ignition system connected to the ignitor and a follow-on current producer which produces a follow-on current that travels between electrodes of the ignitor after an initial discharge of the conventional ignition system through the ignitor. The system may also include a disabling element that prevents the follow-on cur-rent from being transmitted to the ignitor. The disabling element may prevent the follow-on current from being transmitted to the ignitor based upon current operating conditions of the engine. When the disabling element prevents the follow-on current from being transmitted to the ignitor the system operates in a conventional manner. When the disabling element allows the follow-on current to be transmitted to the ignitor the system operates in a manner that creates a traveling spark between the ...

DEVICE OF GENERATION OF HIGH VOLTAGE.

Dispositif de génération de haute tension, comprenant un résonateur inductif capacitif (RS2) apte à produire une haute tension, des moyens de génération d'un train d'impulsions de commande haute fréquence, une source de tension (VMT), un condensateur (C1) et un générateur de tension (GENI) comprenant un transistor de commutation (M1) dont l'électrode de commande (G) est reliée à la sortie des moyens de génération du train d'impulsions de commande haute fréquence, la source (S) du transistor de commutation (M1) étant reliée à une masse, le drain (D) du transistor de commutation (M1) étant apte à délivrer un train d'impulsions de tension au résonateur inductif capacitif (RS2) en réponse au train d'impulsions de commande reçues sur l'électrode de commande (G) du transistor de commutation (M1). Le drain (D) du transistor de commutation (M1) est relié au résonateur inductif capacitif (RS2) par l'intermédiaire d'un transformateur d'isolation (TRANS), le transformateur d'isolement (TRANS) étant ...

DEVICE OF GENERATION OF HIGH VOLTAGE.

ICULES DE CARBURANT DANS LA CHAMBRE DE COMBUSTION D'UN MOTEUR A EXPLOSION

Procédé et dispositif de concentration par voie électrostatique de particules de carburant dans la chambre de combustion d'un moteur à explosion. Le dispositif comprend deux intervalles d'éclatement dans lesquels des champs électrostatiques intenses et des décharges en effluves de durée relativement longue sont établis afin que les particules de carburant se concentrent dans une partie d'une chambre de combustion qui est voisine d'une bougie d'allumage. L'atmosphère de l'un des intervalles peut être isolée de l'atmosphère de la chambre de combustion de façon à ne pas être influencée par les variations de pression et de composition de cette atmosphére. Le dispositif peut comprendre une électrode secondaire qui est isolée électriquement à la fois d'une électrode principale et d'une électrode tertiaire. Application aux moteurs à explosion qui sont alimentés en mélange de carburant et d'air relativement pauvre dont l'allumage est difficile ...

IGNITER INCLUDING A CORONA ENHANCING ELECTRODE TIP

밀봉 연소 실을 갖는 코로나 점화

... 코로나 점화기(20)는 금속 셸(26)에 의해 둘러싸인 절연체(24)에 의해 둘러싸인 중앙 전극(22)을 포함하고 있다. 세라믹 연소 실(30)은 셸 하단부(52)와 절연체 노즈 영역(48) 사이의 갭(32)을 따라 배치되어 그 사이를 밀봉한다. 세라믹 연소 실(30)은 보통, 소결 알루미나로 형성된 부싱, 실린더, 또는 링이다. 유리 재료 또는 유리/세라믹 혼합물(60)은 보통 세라믹 연소 실(30)을 셸(26)과 절연체(24)에 부착시킨다. 대안으로, 세라믹 연소 실(30)은 셸(26)에 납땜되고, 유리 재료 또는 유리/세라믹 혼합물(60)이 세라믹 연소 실(30)을 절연체(24)에 부착시킨다.

RF IGNITER HAVING INTEGRAL PRE-COMBUSTION CHAMBER

An igniter (18) for an internal combustion engine (10) is disclosed. The igniter may have a base (28), and a cap (30) fixedly connected to the base to form an integral pre-combustion chamber (34). The cap may have at least one orifice (40). The igniter may also have an electrode (32) 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.

PLASMA JET SPARK PLUG

A PLASMA JET SPARK PLUG - THUNDER III for Internal Combustion Engines has a spark plug with a simple (1-2) or double (1-2, 1-3) sliding spark system and a low voltage electrode (4) with shell's (5) shape. The jet system is created by spreading, outside this small initial chamber (6), the plasma of sparks, of free type (1-2-,4-5), between the high voltage electrode (1) and the shell (4-5) and other sliding discharges (1-2, 1-3) after very fast combustion of the lean air/fuel mixture and the increase of high pressure. This plasma is flowing into a great main combustion chamber (7) with high velocity penetrating high volume of this fresh lean air/fuel mixture causing rapid ignition and complete combustion and very fast increase of pressure.

Protective sleeve for a corona ignitor in a spark plug shaft of an engine

This disclosure pertains to a protective sleeve for protecting a corona igniter in a spark plug shaft of an internal combustion engine, wherein the protective sleeve comprises a collar for sitting on a rim of a spark plug shaft opening and a tubular section for being inserted into the spark plug shaft and for receiving the corona igniter.

SPARK PLUG, IGNITION SYSTEM, ENGINE AND IGNITION METHOD FOR THE ENGINE

УСТРОЙСТВО ЗАЖИГАНИЯ, ДВИГАТЕЛЬ ВНУТРЕННЕГО СГОРАНИЯ, СВЕЧА ЗАЖИГАНИЯ, ПЛАЗМЕННОЕ ОБОРУДОВАНИЕ, УСТРОЙСТВО ДЛЯ РАЗЛОЖЕНИЯ ОТРАБОТАВШЕГО ГАЗА, ОЗОНООБРАЗУЮЩЕЕ/СТЕРИЛИЗУЮЩЕЕ/ДЕЗИНФИЦИРУЮЩЕЕ УСТРОЙСТВО И УСТРОЙСТВО ДЛЯ УСТРАНЕНИЯ ЗАПАХОВ

Изобретение относится к устройству зажигания, двигателю внутреннего сгорания (ДВС), к свече зажигания, к плазменному оборудованию, к устройству для разложения выхлопного газа, к озонообразующему/стерилизующему/дезинфицирующему устройству и к устройству для устранения запахов. Устройство зажигания содержит средство регулирования диэлектрической проницаемости, средство излучения сверхвысокочастотных (СВЧ) волн, средство зажигания. Средство регулирования диэлектрической проницаемости работает посредством введения воды и/или отработавшего газа в зону сгорания/реакции. Средство излучения СВЧ волн излучает СВЧ волны в зону сгорания/реакции для повышения температуры смеси, осуществления плазменного разряда и для повышения концентрации радикалов. Средство зажигания воспламеняет смесь посредством осуществления разряда. Устройство зажигания может содержать средство управления. Также в изобретении представлены двигатели внутреннего сгорания, свеча зажигания, плазменное оборудование, устройство для ...

РАДИОЧАСТОТНОЕ УСТРОЙСТВО ГЕНЕРИРОВАНИЯ ПЛАЗМЫ

Изобретение относится к радиочастотным устройствам генерирования плазмы и может быть использовано в двигателях внутреннего сгорания. Техническим результатом является обеспечение контроля качества искры, производимой свечой. Радиочастотное устройство генерирования плазмы содержит генератор (5) напряжения и, по меньшей мере, один блок (9) зажигания, содержащий свечу (4) зажигания и выключатель (7), установленный между контактом питания свечи (4) и выходом генератора (5). Выключатель (7) выполнен с возможностью электрического соединения выхода генератора (5) напряжения с указанной свечой (4) при получении командного сигнала (V1). Устройство содержит электронный блок (UC) управления, генерирующий указанный командный сигнал (V1). Электронный блок (UC) управления содержит средства (М) измерения значений, характеризующих изменение во времени выходного напряжения генератора (5), и устройство (А) содержит средства изменения напряжения и/или частоты электрического тока, подаваемого на указанный контакт ...

ИОНИЗАЦИОННАЯ СВЕЧА ЗАЖИГАНИЯ

Изобретение относится к электрооборудованию автомобилей, в частности к многоискровым системам зажигания двигателей внутреннего сгорания, и касается конструкции свечи. Ионизационная свеча зажигания содержит металлический корпус, изолятор со встроенным центральным электродом и общий "массовый" электрод; центральный электрод выполнен с коническим заострением, вершина и основание которого расположены от торца корпуса на расстояниях соответственно 4,5-11,0 мм и 1,5-4,0 мм, а сам корпус и общий "массовый" электрод выполнены как единое целое. Техническим результатом является улучшение пусковых характеристик, уменьшение удельного расхода топлива и вредных выбросов в атмосферу, повышение антидетонационных свойств двигателя внутреннего сгорания. 1 ил.

СВЕЧА ЗАЖИГАНИЯ ЖАБРЕЕВА В.С. ДЛЯ МНОГОТОПЛИВНОГО ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

Использование: для зажигания топлива в многотопливных двигателях внутреннего сгорания, преимущественно при запуске двигателей в холодных условиях. Сущность изобретения: свеча зажигания для многотопливного двигателя внутреннего сгорания содержит корпус 1, установленный в нем центральный электрод 2 с керамическим изолятором 3 и втулкой 4 из магнитного электропроводного материала, а также размещенные вокруг втулки 4 соосно электроду 2 по крайней мере две цилиндрические спирали 7 и 8, одна из которых одним концом закреплена на нижней части корпуса 1, а другим - на диске 6. Согласно изобретению свеча снабжена дополнительным трубчатым электродом 5, расположенным в изоляторе соосно центральному электроду 2 и соединенным с внутренней поверхностью втулки 4 и торцом вышеупомянутого диска 6, а вторая спираль 8 одним концом соединена непосредственно с центральным электродом 2 через отверстие в диске 6, а другой ее конец свободный. 1 ил.

СВЕЧА ЗАЖИГАНИЯ ЖАБРЕЕВА В.С. ДЛЯ МНОГОТОПЛИВНОГО ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

Изобретение относится к двигателестроению, в частности к оборудованию для зажигания топлива в многотопливных двигателях внутреннего сгорания, преимущественно для запуска двигателей в холодных условиях. Цель изобретения - обеспечение эффективного воспламенения топливовоздушной смеси при запуске двигателя в условиях низких температур. Свеча зажигания для многотопливного двигателя внутреннего сгорания, содержащая корпус, установленный в нем центральный электрод с керамическим изолятором и втулкой из магнитного электропроводного материала, а также размещенные вокруг втулки соосно с электродом по крайней мере две цилиндрические спирали, одна из которых одним концом закреплена на нижней части корпуса, другим - на диске, снабжена дополнительным трубчатым электродом, расположенным в изоляторе соосно с центральным электродом и соединенным с внутренней поверхностью втулки и торцом упомянутого диска, а вторая спираль одним концом соединена непосредственно с центральным электродом через отверстие в ...

Ignition system and ignition method

An ignition system including a plasma jet spark plug, a discharge power source, and an energy input portion. The spark plug includes a center electrode inserted and installed in the axis hole of an insulator, a ground electrode forming a clearance with the center electrode in between, and a cavity defined by an inner peripheral surface of the axis hole and a top end surface of the center electrode. A plasma is generated in the cavity as the discharge power source generates a spark discharge by applying a voltage to the clearance and the energy input portion inputs electric power into the clearance. The energy input portion inputs electric power into the clearance more than once in a single spark discharge.

Corona igniter having improved gap control

A corona igniter 20 includes an electrode gap 28 between the central electrode 22 and the insulator 32 and a shell gap 30 between the insulator 32 and the shell 36 . An electrically conductive coating 40 is disposed on the insulator 32 along the gaps 28, 30 to prevent corona discharge 24 in the gaps 28, 30 and to concentrate the energy at a firing tip 58 of the central electrode 22 . The electrically conductive coating 40 is disposed on an insulator inner surface 64 and is spaced radially from the electrode 22 . The electrically conductive coating 40 is also disposed on the insulator outer surface 72 and is spaced radially from the shell 36 . During operation of the igniter 20 , the electrically conductive coating 40 provides a reduced voltage drop across the gaps 28, 30 and a reduced electric field spike at the gaps 28, 30.

Corona ignition device having asymmetric firing tip

A corona ignition system for providing a corona discharge ( 24 ) includes an igniter ( 20 ) having an electrode ( 26 ) with an asymmetrical firing tip ( 28 ) relative to an electrode center axis (a e ). The firing tip ( 28 ) includes a first surface area (A 1 ) facing the fuel injector ( 42 ) which is greater than a second surface area (A 2 ) facing a cylinder block ( 32 ). The first surface area (A 1 ) presents a projection ( 60 ) having a sharp edge, and the second surface area (A 2 ) presents a round outward surface ( 62 ). Accordingly, a radio frequency electric field emitted from the first surface area (A 1 ) provides a robust corona discharge ( 24 ) in a flammable area at an outside edge ( 30 ) of the fuel spray. No electric field is emitted from the second surface area (A 2 ), and no power arcing occurs between the second surface area (A 2 ) and the cylinder block ( 32 ).

Electromagnetic wave emission device

The purpose of the present invention is to provide an electromagnetic wave emission device in which the destination to which an electromagnetic wave is supplied can be switched among a plurality of emission antennas, wherein there are no problems such as breakage of a switching element even in a case where a large-power electromagnetic wave is emitted. The present invention is an electromagnetic wave emission device characterized by the following: an electromagnetic wave output from an electromagnetic wave generator is distributed to a plurality of emission antennas, and then from among the plurality of emission antennas, a target antenna having plasma nearby is supplied with an electromagnetic wave distributed to the target antenna and all or part of the electromagnetic waves reflected by the emission antennas other than the target antenna; and the all or part of the electromagnetic waves distributed to the target antenna and all or part of the electromagnetic waves supplied to the target antenna after reflection by the emission antennas other than the target antenna are emitted from the target antenna to the plasma.

METHOD AND APPARATUS FOR OPERATING TRAVELING SPARK IGNITER AT HIGH PRESSURE

An ignition circuit and a method of operating an igniter (preferably a traveling spark igniter) in an internal combustion engine, including a high pressure engine. A high voltage is applied to electrodes of the igniter, sufficient to cause breakdown to occur between the electrodes, resulting in a high current electrical discharge in the igniter, over a surface of an isolator between the electrodes, and formation of a plasma kernel in a fuel-air mixture adjacent said surface. Following breakdown, a sequence of one or more lower voltage and lower current pulses is applied to said electrodes, with a low “simmer” current being sustained through the plasma between pulses, preventing total plasma recombination and allowing the plasma kernel to move toward a free end of the electrodes with each pulse. 16-. (canceled)7. A method of plasma generation , comprising:a. applying to an igniter having at least a pair of electrodes a voltage of amplitude sufficient to cause breakdown to occur between the electrodes, resulting in a high current electrical discharge in the igniter in an initiation region, and formation of a plasma kernel adjacent said initiation region; andb. following breakdown, switching a switching element to apply to said electrodes at least one follow-on pulse by discharging a plasma-sustaining capacitor via a current-controlling discharge path, wherein the discharge path includes the switching element between the plasma-sustaining capacitor and the electrodes.8. The method of claim 7 , wherein the switching element is of a type that can be switched while current therethrough is not zero.9. The method of claim 8 , wherein the switching of the switching element includes turning off the switching element while the current therethrough is not zero.10. The method of claim 8 , wherein-the at least one follow-on pulse are voltage pulses generated by the capacitor pulling its discharge current through an inductance.11. The method of claim 10 , wherein the inductance is ...

Protective sleeve for a corona ignitor in a spark plug shaft of an engine

This disclosure pertains to a protective sleeve for protecting a corona igniter in a spark plug shaft of an internal combustion engine, wherein the protective sleeve comprises a collar for sitting on a rim of a spark plug shaft opening and a tubular section for being inserted into the spark plug shaft and for receiving the corona igniter.

Combustion Environment Diagnostics

An apparatus comprises a coaxial cavity resonator; a radio frequency power source coupled to the coaxial cavity resonator; a direct current power source coupled to the coaxial cavity resonator; a combustion process feedback module configured to sense a condition in a combustion environment by measuring a characteristic of the coaxial cavity resonator; and a controller configured to modulate operation of the coaxial cavity resonator based at least in part on combustion process feedback information from the combustion process feedback module. 122-. (canceled)23. An apparatus for igniting a combustible mixture , comprising:a coaxial cavity resonator configured to create a plasma discharge;a radio frequency power source coupled to the coaxial cavity resonator;a direct current power source coupled to the coaxial cavity resonator;a combustion process feedback module configured to sense a condition in a combustion environment by measuring a characteristic of the coaxial cavity resonator; anda controller configured to modulate operation of the coaxial cavity resonator based at least in part on combustion process feedback information from the combustion process feedback module.24. The apparatus of claim 23 , further comprising an internal combustion engine and wherein the combustion environment is a cylinder of the internal combustion engine.25. The apparatus of claim 24 , wherein the controller is further configured to modulate operation of the coaxial cavity resonator during a single combustion cycle based at least in part on the combustion process feedback information from the combustion process feedback module.26. The apparatus of claim 25 , further comprising a motor vehicle configured to be powered by the internal combustion engine.27. The apparatus of claim 26 , wherein the motor vehicle is an automobile that includes a chassis supporting the internal combustion engine claim 26 , a transmission driven by the internal combustion engine claim 26 , a drive axle driven by ...

Fuel injection systems with enhanced thrust

Methods, systems, and devices are disclosed for injecting a fuel using Lorentz forces. In one aspect, a method to inject a fuel includes distributing a fuel between electrodes configured at a port of a chamber, generating an ion current of ionized fuel particles by applying an electric field between the electrodes to ionize at least some of the fuel, and producing a Lorentz force to accelerate the ionized fuel particles into the chamber. In some implementations of the method, the accelerated ionized fuel particles into the chamber initiate a combustion process with oxidant compounds present in the chamber. In some implementations, the method further comprises applying an electric potential on an antenna electrode interfaced at the port to induce a corona discharge into the chamber, in which the corona discharge ignites the ionized fuel particles within the chamber.

METHOD AND APPARATUS FOR OPERATING TRAVELING SPARK IGNITER AT HIGH PRESSURE

An ignition circuit and a method of operating an igniter (preferably a traveling spark igniter) in an internal combustion engine, including a high pressure engine. A high voltage is applied to electrodes of the igniter, sufficient to cause breakdown to occur between the electrodes, resulting in a high current electrical discharge in the igniter, over a surface of an isolator between the electrodes, and formation of a plasma kernel in a fuel-air mixture adjacent said surface. Following breakdown, a sequence of one or more lower voltage and lower current pulses is applied to said electrodes, with a low “simmer” current being sustained through the plasma between pulses, preventing total plasma recombination and allowing the plasma kernel to move toward a free end of the electrodes with each pulse. 16-. (canceled)7. A method of plasma generation , comprising:a. applying to an igniter having at least a pair of electrodes a voltage of amplitude sufficient to cause breakdown to occur between the electrodes, resulting in a high current electrical discharge in the igniter in an initiation region, and formation of a plasma kernel adjacent said initiation region; andb. switching a switching element in a discharge path of the igniter in response to a signal from a pulse generator, wherein the switching element is of a type that can be switched off while current therethrough is not zero.8. The method of claim 7 , further comprising claim 7 , following breakdown claim 7 , applying to said electrodes at least one follow-on pulse by discharging a plasma-sustaining capacitor in response to a signal from the pulse generator.9. The method of claim 8 , wherein one or more of the at least one follow-on pulse are voltage pulses generated by the capacitor pulling its discharge current through an inductance.10. The method of claim 9 , wherein the inductance is in series with the capacitor and inductively coupled to a second inductance that is in series with one of the electrodes.11. The ...

CORONA IGNITION DEVICE WITH IMPROVED ELECTRICAL PERFORMANCE

A corona comprises a central electrode surrounded by an insulator, which is surrounded by a conductive component. The conductive component includes a shell and an intermediate part both formed of an electrically conductive material. The intermediate part is a layer of metal which brazes the insulator to the shell. An outer surface of the insulator presents a lower ledge, and the layer of metal can be applied to the insulator above the lower ledge prior to or after inserting the insulator into the shell. The conductive inner diameter is less than an insulator outer diameter directly below the lower ledge such the insulator thickness increases toward the electrode firing end. The insulator outer diameter is also typically less than the shell inner diameter so that the corona igniter can be forward-assembled. 1. A corona igniter for emitting a radio frequency electric field to ionize a fuel-air mixture and provide a corona discharge , comprising:a central electrode formed of an electrically conductive material for receiving a high radio frequency voltage and emitting the radio frequency electric field;an insulator formed of an electrically insulating material surrounding said central electrode and extending longitudinally along a center axis from an insulator upper end to an insulator nose end;said insulator including an insulator outer surface extending from said insulator upper end to said insulator nose end;said insulator outer surface presenting an insulator outer diameter extending across and perpendicular to said center axis;said insulator including an insulator body region and an insulator nose region;said insulator outer surface including a lower ledge extending outwardly away from said center axis between said insulator body region and said insulator nose region;said lower ledge presenting an increase in said insulator outer diameter;a conductive component surrounding at least a portion of said insulator body region such that said insulator nose region extends ...

METHOD FOR ADJUSTING AN EXCITATION FREQUENCY OF AN OSCILLATING CIRCUIT OF A CORONA IGNITION DEVICE

A method for setting adjusting frequency of an electric oscillating circuit of a corona ignition device. The circuit is excited with a starting value (f1) of the excitation frequency and a reference value (I) of a frequency-dependent variable is measured. The excitation frequency is incrementally changed. After every increment a value (I) of the frequency-dependent variable is measured and it is determined whether the measured value (I) deviates significantly from the reference value (I). Depending upon the measured value (I) relative to the reference value, the value (f) of the excitation frequency is either set as the new starting value (f1) or stored as a boundary value. Further incremental changes to the excitation frequency are made in one of two directions and further comparisons of the values I and Iare performed. Ultimately, the excitation frequency can be set to a mean value between first and second boundary values. 1. A method for adjusting an excitation frequency of an electric oscillating circuit of a corona ignition device , comprising:exciting the oscillating circuit with a starting value of the excitation frequency, measuring a value of a frequency-dependent variable of the oscillating circuit and storing the measured value as a reference value;incrementally increasing the excitation frequency proceeding from the starting value;after every increment, measuring a value of the frequency-dependent variable of the oscillating circuit and performing a check to determine whether the measured value of the frequency-dependent variable deviates from the reference value by more than a predefined threshold value, wherein:if the measured value of the frequency-dependent variable deviates from the reference value by more than the threshold value and the measured value of the frequency-dependent variable is better than the reference value, the measured value is stored as the new reference value and the value of the excitation frequency associated with the measured ...

Ignition system

An ignition system for an internal combustion engine includes a discharge portion of the center electrode in which a part thereof is surrounded by a bottom portion and a tubular tip portion of the center dielectric, the part of the discharge portion and the tubular tip portion are projected into a combustion chamber of the internal combustion engine from a substantially annular tip portion of the ground electrode that opens to the combustion chamber at a distal end of the ground electrode, a diameter-changing portion formed by reducing a diameter of a part of the tubular tip portion in a radial direction gradually as approaching toward a tip thereof, and a thin-walled portion formed by reducing a thickness of the tip of the tubular tip portion.

AIR-FREE CAP END DESIGN FOR CORONA IGNITION SYSTEM

A corona igniter assembly including an ignition coil assembly, a firing end assembly, and a dielectric compliant member is provided. The dielectric compliant member is compressed between a high voltage insulator of the ignition coil assembly and a ceramic insulator of the firing end assembly. During assembly of the corona igniter assembly, the dielectric compliant member pushes air outwards and forms a hermetic seal between the high voltage insulator and the ceramic insulation. The dielectric compliant member can have a rounded upper surface, which may improve the hermetic seal. Alternatively, or in addition to the rounded surface on the dielectric compliant member, the lower surface of the high voltage insulator can be rounded to push air outwards during assembly and provide a hermetic seal. 1. A corona igniter assembly , comprising:an ignition coil assembly including a high voltage insulator formed of an insulating material;a firing end assembly spaced from said ignition coil assembly, said firing end assembly including a ceramic insulator formed of a ceramic material;a dielectric compliant member compressed between said high voltage insulator and said ceramic insulator to provide a hermetic seal therebetween;said dielectric compliant member extending from an upper surface engaging said high voltage insulator to a bottom surface engaging said ceramic insulator, and said upper surface of said dielectric compliant member being rounded.2. The corona ignition assembly of claim 1 , wherein said dielectric compliant member is formed of silicon paste or injected molded silicon.3. The corona ignition assembly of claim 1 , wherein said ceramic material of said ceramic insulator is different from said insulating material of said high voltage insulator.4. The corona ignition assembly of claim 3 , wherein said high voltage insulator is formed of rubber or plastic material.5. The corona ignition assembly of including a high voltage electrode extending longitudinally through a ...

METHOD AND APPARATUS FOR OPERATING TRAVELING SPARK IGNITER AT HIGH PRESSURE

An ignition circuit and a method of operating an igniter (preferably a traveling spark igniter) in an internal combustion engine, including a high pressure engine. A high voltage is applied to electrodes of the igniter, sufficient to cause breakdown to occur between the electrodes, resulting in a high current electrical discharge in the igniter, over a surface of an isolator between the electrodes, and formation of a plasma kernel in a fuel-air mixture adjacent said surface. Following breakdown, a sequence of one or more lower voltage and lower current pulses is applied to said electrodes, with a low “simmer” current being sustained through the plasma between pulses, preventing total plasma recombination and allowing the plasma kernel to move toward a free end of the electrodes with each pulse. 16-. (canceled)7. A method of plasma generation , comprising:a. applying to an igniter having at least a pair of electrodes a voltage of amplitude sufficient to cause breakdown to occur between the electrodes, resulting in a high current electrical discharge in the igniter in an initiation region, and formation of a plasma kernel adjacent said initiation region; andb. switching a switching element in a discharge path of the igniter, wherein the switching element is of a type that can be switched while current therethrough is not zero.8. The method of claim 7 , further comprising claim 7 , following breakdown claim 7 , applying to said electrodes at least one follow-on pulse by discharging a plasma-sustaining capacitor via the discharge path.9. The method of claim 8 , wherein one or more of the follow-on pulses are voltage pulses generated by the capacitor pulling its discharge current through an inductance.10. The method of claim 9 , wherein the inductance is in series with the capacitor and one of the electrodes.11. The method of claim 8 , wherein the discharge path modulates a discharge current of the capacitor.12. A circuit claim 8 , comprising:a switch connected in a ...

IGNITION SYSTEM HAVING A HIGH-FREQUENCY PLASMA-ENHANCED IGNITION SPARK OF A SPARK PLUG, INCLUDING AN ANTECHAMBER, AND A METHOD ASSOCIATED THEREWITH

An ignition system and a method for a spark-ignition combustion engine having a high-frequency plasma-augmented ignition spark, the spark ignition of the fuel being realized by at least one spark plug associated with a combustion chamber of the combustion engine. The spark plug has a prechamber having at least one opening via which the prechamber communicates with the combustion chamber on the fuel side, so that the ignition spark in the prechamber, into which the high-frequency plasma can be injected, induces the plasma-augmented spark ignition of the fuel in the prechamber. 1. An ignition system for a spark-ignition combustion engine , comprising:at least one spark plug configured to provide the spark ignition of fuel, the at least one spark plug being associated with a combustion chamber of the combustion engine;a first electrode of the spark plug that is electrically connected to a high-voltage output of a high-voltage source;a second electrode of the spark plug that is configured as a grounding contact;wherein the first electrode of the spark plug is coupled to an ignition installation that has a high-frequency output to which a high-frequency voltage is applied;wherein the high-voltage output of the high-voltage source of the spark plug and the high-frequency output are electrically interconnected, so that, in a voltage circuit that includes the high-voltage source of the spark plug, the high-voltage output of the high-voltage source is amplified by the high-frequency voltage applied to the high-frequency output to generate a spark discharge between the first electrode and the second electrode of an ignition spark in response to the high-frequency voltage being injected via the high-frequency output into the voltage circuit of the high-voltage source, whereby, at/in the ignition spark, a high-frequency plasma can be injected, thereby enhancing the ignition reliability of the fuel in the combustion chamber by an additional energy input into the ignition spark ...

Prechamber module for a laser spark plug and method for producing same

A prechamber module for a laser spark plug, the prechamber module having a fastening region for the detachable fastening of the prechamber module to the laser spark plug. The prechamber module, in an end region, facing away from the combustion chamber, has a diaphragm arrangement, which borders on an inner chamber of the prechamber module in the axial direction, and has an orifice for the irradiation of laser radiation from the laser spark plug into the inner chamber of the prechamber module.

CORONA IGNITION SYSTEM HAVING SELECTIVE ENHANCED ARC FORMATION

A corona discharge () ignition includes an electrode () emitting a radio frequency electric field and providing a corona discharge () to ignite a combustible mixture. The system includes a controlled high voltage energy supply () providing energy to a main energy storage () at a first main voltage. A fixed high voltage energy supply () provides extra energy to an extra energy storage () at a second extra voltage, which is greater than the first main voltage. While the corona discharge () is being provided, the energy of the main energy storage (), but not the extra energy storage (), is provided to the electrode (). When the corona discharge () switches to arc discharge, the extra energy of the extra energy storage () is provided to the corona igniter () to enhance the arc discharge and provide reliable ignition until the corona discharge () is restored. 1. A corona discharge ignition system for igniting a combustible mixture of fuel and air in a combustion chamber , comprising:an electrode for receiving energy at a radio frequency voltage and emitting a radio frequency electric field to ionize the combustible mixture and provide a corona discharge igniting said combustible mixture,a main energy storage storing energy at a first main voltage and providing the energy ultimately to said electrode, andan extra energy storage storing energy at a second extra voltage that is greater than said first main voltage and operative in response to an occurrence of an arc discharge at said electrode for providing said stored energy ultimately to said electrode.2. The system of including a switch between said extra energy storage and said electrode to prevent the energy of said extra energy storage from being provided to said electrode while said corona discharge is provided.3. The system of including a switch control instructing said switch to remain open when said corona discharge is provided and to close when said arc discharge occurs claim 2 , wherein said closed switch allows ...

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.

CORONA IGNITER WITH HERMETIC COMBUSTION SEAL ON INSULATOR INNER DIAMETER

A corona igniter including a hermetic combustion seal between an insulator and center electrode is provided. The combustion seal includes a metallic coating, such as a nickel-based layer applied to a layer of molybdenum-manganese, and the metallic coating is disposed on the insulator inner surface. Optionally, a shot of copper-based powder can be disposed on a head of the center electrode. The center electrode and/or the copper-based powder is then brazed to the metallic coating on the inner surface of the insulator. The process can include applying the metallic coating to the inner surface while applying a metal coating to an outer surface of the insulator. The method further includes brazing the center electrode and/or the copper-based powder to the metallic coating on the inner surface while brazing the metal coating on the outer surface to a metal shell. 1. A method of manufacturing a corona igniter , comprising the steps of:providing an insulator including an inner surface surrounding a bore and extending from. an upper connection end to an insulator nose end, the inner surface of the insulator including an electrode seat between the upper connection end and the insulator nose end, the inner surface of the insulator presenting an inner diameter, and the inner diameter decreasing along the electrode seat in a direction moving toward the insulator nose end;disposing a metallic coating on the inner surface of the insulator between the electrode seat and the upper connection end and not below the electrode seat;disposing a center electrode in the bore of the insulator, the center electrode including a head;the step of disposing the center electrode in the bore of the insulator including disposing the head of the center electrode on the electrode seat of the insulator; andbrazing the metallic coating on the inner surface of the insulator between the electrode seat and the upper connection end to the head of the center electrode.2. The method of claim 1 , wherein the ...

Fuel Injection Using a Dielectric of a Resonator

An example system can include a radio-frequency power source and a resonator. The resonator can be configured to be electromagnetically coupled to the radio-frequency power source and can have a resonant wavelength. The resonator can include: a first conductor, a second conductor, and a dielectric between the first conductor and the second conductor. The resonator can also be configured such that, when the resonator is excited by the radio-frequency power source with a signal having a wavelength proximate to an odd-integer multiple of one-quarter of the resonant wavelength, the resonator provides at least one of a plasma corona or electromagnetic waves. The system can also include a fuel conduit configured to couple to a fuel source and having one or more outlets for expelling fuel, where at least a portion of the fuel conduit is arranged proximate to the dielectric.

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.

Spark plug for a high frequency ignition system

The invention relates to a spark plug (100) for an internal combustion engine, in particular having a high frequency ignition system, having a central electrode (28; 128), a ground electrode (12; 112) and an electrical insulator (18; 118) arranged between the central electrode (28; 128) and the ground electrode (12; 112), wherein a central electrode connecting point (26; 126) for electrically connecting the central electrode (28; 128) to an ignition system is provided on the insulator (18; 118), wherein the central electrode (28; 128) and the ground electrode (12; 112) project beyond the insulator (18; 118) at an axial end (114) of the spark plug (100) and each form, with a part projecting axially beyond the insulator (18; 118), a central electrode end (140) and a ground electrode end (142), wherein the central electrode end (140) and the ground electrode end (142) are arranged and embodied in such a way that an axial region (170) of a gap (146) is formed between them in an axial direction, wherein the axial region (170) of the gap (146) is spaced apart from the insulator (18; 118), wherein at least one additional electrode (150) is provided which projects beyond the insulator (118) at the axial end (114) of the spark plug (100) and forms, with a part which projects axially beyond the insulator (118), an additional electrode end (154). In this case the additional electrode (150) is arranged electrically insulated from the ground electrode (112) and the central electrode (128), on the spark plug (100), wherein the additional electrode end (154) projects into the axial region (170) of the gap (146) between the central electrode end (140) and the ground electrode end (142) or is arranged into a region (170) of the gap (146) which is radially adjacent to the axial region (170) of the gap (146), and as a result divides the gap (146) into two ignition spark end gaps (156, 166).

HIGH VOLTAGE CONNECTION SEALING METHOD FOR CORONA IGNITION COIL

A corona igniter assembly comprises an ignition coil assembly a firing end assembly and a metal tube connecting the ignition coil assembly to the firing end assembly A rubber boot is disposed in the metal tube and compressed symmetrically between a coil output member of the ignition coil assembly and an insulator of the firing end assembly Thus, the rubber boot fills any air gaps and provides a hermetic seal between the ignition coil assembly and the firing end assembly to prevent unwanted corona discharge from forming from those air gaps. 1. An ignitor assembly , comprising:a metal tube;an ignition coil device coupled to one end of said metal tube;an ignitor device coupled to an opposite end of said tube;an interior space of said metal tube that is not occupied by either said ignition coil or said ignitor;at least one opening extending through a wall of said metal tube in communication with said interior space; andan elastomeric plug disposed in said interior space sealing said at least one opening and providing a hermetic seal between said ignition coil device and said ignitor device.2. The assembly of wherein said elastomeric plug includes a first cup-shaped recess at said one end surrounding a portion of said ignition coil device received therein.3. The assembly of wherein said elastomeric plug includes a second cup-shaped recess at said opposite end surrounding a portion of said ignitor device received therein.4. The assembly of wherein said elastomeric plug includes a channel connecting said first and second cup-shaped recesses.5. The assembly of including an electrical terminal disposed in said channel.6. The assembly of wherein said elastomeric plug includes a channel extending between said ignition coil device and said ignitor device and in which an electrical terminal is disposed.7. The assembly of wherein said ignitor device includes a ceramic insulator having said portion thereof received in said second cup-shaped recess;8. The assembly of wherein said ...

Ignition apparatus for internal combustion engine

An ignition apparatus for an internal combustion engine is provided which includes a state-of-discharge determiner working to determine whether a center and a ground electrode of a spark plug are electrically conducting with each other or insulated from each other. When the center and ground electrodes are determined to be conducted with each other, the ignition apparatus alters controlled conditions of a high-frequency power supply which supplies a high-frequency power to the spark plug so as to decrease an average of a primary voltage outputted from the high-frequency power supply to the spark plug, thereby reducing an actual current flowing between the center and ground electrodes of the spark plug. This eliminates the risk of mechanical wear of the center and ground electrodes which usually arises from the flow of high current between the center and ground electrodes, thus resulting in an increase in service life of the spark plug.

Combustion Environment Diagnostics

An apparatus for igniting a combustible mixture. In one example, the apparatus can include a coaxial cavity resonator assembly in a combustion environment. The apparatus can also include an operational feedback system and a controller. The operational feedback system can measure at least one of a voltage value and a current value of the coaxial cavity resonator assembly in the combustion environment. The controller can be configured to determine a condition of the coaxial cavity resonator assembly and modulate operation of the coaxial cavity resonator assembly based at least in part on the determined condition. 1. A method , comprising:measuring at least one of a voltage value and a current value of a coaxial cavity resonator assembly in a combustion environment, the coaxial cavity resonator assembly comprising a conductor structure that extends through a first coaxial cavity resonator and a second coaxial cavity resonator;determining a condition of the coaxial cavity resonator assembly by comparing the measured value to a known possible condition state; andmodulating operation of the coaxial cavity resonator assembly based at least in part on the determined condition.2. The method of claim 1 , wherein the combustion environment is a cylinder of an internal combustion engine.3. The method of claim 2 , further comprising measuring a second condition of the combustion environment by using an auxiliary sensor.4. The method of claim 3 , wherein modulating operation of the coaxial cavity resonator assembly is further based at least in part on the second condition measurement of the combustion environment by the auxiliary sensor.5. The method of claim 1 , wherein modulating operation of the coaxial cavity resonator assembly comprises modifying an ignition of a combustible mixture in the combustion environment based at least in part on the determined condition.6. The method of claim 1 , wherein modulating operation of the coaxial cavity resonator assembly comprises ...

AIR-FREE CAP END DESIGN FOR CORONA IGNITION SYSTEM

A corona igniter assembly including an ignition coil assembly, a firing end assembly, and a dielectric compliant member is provided. The dielectric compliant member is compressed between a high voltage insulator of the ignition coil assembly and a ceramic insulator of the firing end assembly. During assembly of the corona igniter assembly, the dielectric compliant member pushes air outwards and forms a hermetic seal between the high voltage insulator and the ceramic insulation. The dielectric compliant member can have a rounded upper surface, which may improve the hermetic seal. Alternatively, or in addition to the rounded surface on the dielectric compliant member, the lower surface of the high voltage insulator can be rounded to push air outwards during assembly and provide a hermetic seal. 1. A method of manufacturing a corona igniter assembly , comprising:compressing a dielectric compliant member between a high voltage insulator formed of an insulating material and a ceramic insulator formed of a ceramic material, wherein the dielectric compliant member extends from an upper surface engaging the high voltage insulator to a bottom surface engaging the ceramic insulator, and the upper surface of the dielectric compliant member is rounded;the step of compressing the dielectric compliant member including forming a hermetic seal between the high voltage insulator and the ceramic insulator.2. The method of claim 1 , wherein the dielectric compliant member pushes air outwards from between the high voltage insulator and the ceramic insulator during the step of compressing the dielectric member.3. A method of manufacturing a corona igniter assembly claim 1 , comprising:compressing a dielectric compliant member between a lower surface of a high voltage insulator formed of an insulating material and an upper surface of a ceramic insulator formed of a ceramic material, and the lower surface of the high voltage insulator is rounded;the step of compressing the dielectric ...

SPARK-BASED COMBUSTION TEST SYSTEM

A combustion test system includes a power source and a corona generator coupled to the power source. The combustion test system also includes a charge storage device. The charge storage device includes a charging surface spaced apart from the corona generator such that charge carriers, motivated by an electric field of the corona generator, intersect the charging surface to charge the charge storage device. The combustion test system also includes a first electrode coupled to the charge storage device and a second electrode coupled to a reference ground. The second electrode is spaced apart from the first electrode to produce an electrical arc between the first electrode and the second electrode based on a voltage difference between the first electrode and the second electrode. 1. A combustion test system comprising:a power source;a corona generator coupled to the power source;a charge storage device comprising a charging surface spaced apart from the corona generator such that charge carriers, motivated by an electric field of the corona generator, intersect the charging surface to charge the charge storage device;a first electrode coupled to the charge storage device; anda second electrode coupled to a reference ground and spaced apart from the first electrode to produce an electrical arc between the first electrode and the second electrode based on a voltage difference between the first electrode and the second electrode.2. The combustion test system of claim 1 , further comprising a test chamber around ends of the first electrode and the second electrode and configured to enclose a test material to be subjected to the electrical arc.3. The combustion test system of claim 1 , wherein the power source is configured to apply a time varying voltage to the corona generator.4. The combustion test system of claim 1 , wherein the charging surface is electrically isolated from the reference ground and from the power source enabling a voltage of the charging surface to ...

CORONA IGNITION DEVICE WITH IMPROVED ELECTRICAL PERFORMANCE

A corona comprises a central electrode surrounded by an insulator, which is surrounded by a conductive component. The conductive component includes a shell and an intermediate part both formed of an electrically conductive material. The intermediate part is a layer of metal which brazes the insulator to the shell. An outer surface of the insulator presents a lower ledge, and the layer of metal can be applied to the insulator above the lower ledge prior to or after inserting the insulator into the shell. The conductive inner diameter is less than an insulator outer diameter directly below the lower ledge such the insulator thickness increases toward the electrode firing end. The insulator outer diameter is also typically less than the shell inner diameter so that the corona igniter can be forward-assembled. 1. A corona igniter for emitting a radio frequency electric field to ionize a fuel-air mixture and provide a corona discharge , comprising:a central electrode formed of an electrically conductive material for receiving a high radio frequency voltage and emitting the radio frequency electric field;an insulator formed of an electrically insulating material surrounding said central electrode and extending longitudinally along a center axis from an insulator upper end to an insulator nose end;said insulator including an insulator outer surface extending from said insulator upper end to said insulator nose end;said insulator outer surface presenting an insulator outer diameter extending across and perpendicular to said center axis;said insulator including an insulator body region and an insulator nose region;said insulator outer surface including a lower ledge extending outwardly away from said center axis between said insulator body region and said insulator nose region;said lower ledge presenting an increase in said insulator outer diameter;a conductive component surrounding at least a portion of said insulator body region such that said insulator nose region extends ...

Dual signal coaxial cavity resonator plasma generation

A plasma generator comprises a radio frequency power source, a coaxial cavity resonator assembly, and a direct current power source. The radio frequency power source provides a voltage supply of radio frequency power having a first ratio of power over voltage. The resonator assembly includes a center conductor coupled to the radio frequency power source, and also includes a virtual short circuit. The direct current power source is connected to the center conductor at the virtual short circuit, and provides a voltage supply of direct current power having a second ratio of power over voltage that is less than the first ratio.

IGNITER ASSEMBLY WITH IMPROVED INSULATION AND METHOD OF INSULATING THE IGNITER ASSEMBLY

An igniter assembly comprising an ignition coil assembly connected to a firing end assembly by an extension, with a valve assembly disposed in a pressure chamber of the extension, is provided. The valve assembly includes a valve stem biased toward the ignition coil assembly by a spring to seal the pressure chamber. The valve assembly is used to evacuate contents from the pressure chamber by pressing the valve stem toward the spring and allowing contents of the pressure chamber to travel through and past the valve stem and out of the pressure chamber. The valve assembly is also used to fill the pressure chamber with an insulating medium by pressing the valve stem toward the spring and allowing the insulating medium to travel through and past the valve stem and into the pressure chamber after evacuating the contents out of the pressure chamber. 1. An igniter assembly , comprising:an ignition coil assembly including a coil,a firing end assembly including an igniter and coupled to said ignition coil assembly by an extension, said extension containing a pressure chamber,a central conductor disposed between said ignition coil assembly and said firing end assembly for transferring energy from said coil to said igniter,a valve assembly disposed in said pressure chamber of said extension for allowing evacuation of contents of said pressure chamber and allowing said pressure chamber to be filled with an insulating medium,said valve assembly sealing the insulating medium in said pressure chamber,said valve assembly including a valve stem, andsaid valve stem being biased toward said ignition coil assembly by a spring to maintain the sealing of said pressure chamber.2. An igniter according to claim 1 , wherein said igniter is a corona igniter.3. An igniter according to claim 2 , wherein said corona igniter includes a central electrode coupled to said central conductor claim 2 , an insulator disposed around said central conductor and said central electrode claim 2 , a firing tip ...

SPARK PLUG

A spark plug including a bottomed tubular insulator, a tubular metal shell, a conductive layer, and a terminal. The insulator extends along an axial line from a front end side to a rear end side and is closed at a front end. The metal shell has a ledge portion that projects radially inward and locks the insulator from the front end side. The metal shell holds the insulator from an outer peripheral side. The conductive layer covers at least a part of an inner peripheral surface of a portion of the insulator which is located on the front end side with respect to a locking portion locked by the ledge portion. The terminal is electrically connected to the conductive layer and is insulated from the metal shell. 1. A spark plug , comprising:a bottomed tubular insulator that extends along an axial line from a front end side to a rear end side and is closed at a front end;a tubular metal shell having a ledge portion that projects radially inward and locks the insulator from the front end side, the metal shell holding the insulator from an outer peripheral side;a conductive layer that covers at least a part of an inner peripheral surface of a portion of the insulator which is located on the front end side with respect to a locking portion locked by the ledge portion; anda terminal that is electrically connected to the conductive layer and is insulated from the metal shell.2. The spark plug according to claim 1 , wherein the conductive layer covers at least a part of the inner peripheral surface which is located at the front end.3. The spark plug according to claim 1 , wherein the conductive layer covers an entire part of the inner peripheral surface.4. The spark plug according to claim 1 , further comprising a member that is inserted into the insulator and has thermal conductivity claim 1 ,wherein a front end of the member is located on the front end side with respect to the locking portion.5. The spark plug according to claim 4 , wherein a part of the member is brought into ...

Plasma ignition device

An igniter includes a central electrode terminating in a firing portion including a plurality of prong tiers distributed axially on the firing portion. Each prong tier including at least one firing prong extending radially outward from the firing portion. The igniter body includes a port end to be received into an engine igniter port, and a shank. The firing portion of the central electrode extends from the shank opposing the port end. A dielectric casing can fully encapsulate the firing portion of the central electrode to define a dielectric barrier adjacent the firing prong. The igniter may include a generally cylindrical ground electrode defining a discharge cavity surrounding the central electrode. The ground electrode includes a plurality of ground prongs defined by the ground electrode and extending radially toward the firing portion. A plurality of apertures defined by the ground electrode are in fluid communication with the discharge cavity.

Spark plug

A spark plug includes: a central electrode extending from a front end side to a rear end side along an axis; an insulator including a front end section formed to be a bottomed tube surrounding a tip of the central electrode; a metal shell shaped to be tubular and structured to support the insulator such that the front end section of the insulator projects to the front end side from a front end section of the metal shell; and a plurality of ground electrodes each of which includes a first end forming a discharge gap with the front end section of the insulator and includes a second end connected to the front end section of the metal shell. The plurality of ground electrodes include a pair of ground electrodes different from each other in size of their discharge gaps.

High voltage connection sealing method for corona ignition coil

A corona igniter assembly 20 comprises an ignition coil assembly 22, a firing end assembly 24, and a metal tube 26 connecting the ignition coil assembly 22 to the firing end assembly 24. A rubber boot 28 is disposed in the metal tube 26 and compressed symmetrically between a coil output member 30 of the ignition coil assembly 22 and an insulator 42 of the firing end assembly 24. Thus, the rubber boot 28 fills any air gaps and provides a hermetic seal between the ignition coil assembly 22 and the firing end assembly 24 to prevent unwanted corona discharge from forming from those air gaps.

IGNITION PLUG AND IGNITION DEVICE

An erosion of an electrode is prevented in a spark plug that performs an ignition by use of a spark discharge and an electromagnetic wave. The spark plug that a pulse voltage for a spark discharge and an electromagnetic wave supplied into the spark discharge as an energy are applied to a center electrode, the spark plug comprises the center electrode, an insulator including an axis hole into which the center electrode is engaged, a ground electrode configured to form a space between the ground electrode and the center electrode in which the spark discharge is generated, and a cylindrical conductor that is arranged at an outer circumference of the insulator, and an annular member is formed at an inner circumference of the cylindrical conductor and at a position where a distance from a distal end surface of the cylindrical conductor is within a range between ⅛ wavelength and ¼ wavelength of the electromagnetic wave. 15-. (canceled)6. A spark plug in which a pulse voltage for a spark discharge and an electromagnetic wave supplied into the spark discharge as an energy are applied to a center electrode , the spark plug comprising:the center electrode;an insulator including an axis hole into which the center electrode is engaged;a ground electrode configured to form a space between the ground electrode and the center electrode in which the spark discharge is generated; anda cylindrical conductor that is arranged at an outer circumference of the insulator,wherein an annular member is formed at an inner circumference of the cylindrical conductor, and formed at a position where a distance from a distal end surface of the cylindrical conductor is within a range between ⅛ wavelength and ¼ wavelength of the electromagnetic wave.7. The spark plug according to claim 6 , wherein the cylindrical conductor is a metal fitting.8. The spark plug according to claim 6 , wherein an inner circumferential surface of the cylindrical conductor contacts with an outer circumference surface of ...

IGNITION PLUG

An ignition plug comprises an elongate cylindrical body of an electrically insulating material having a first end , a second end opposite to the first end and a first face at the first end. A first elongate electrode having a first end and a second end extends longitudinally in the body. The first electrode terminates at the first end thereof a first distance d from the first end of the body in a direction towards the second end of the body. The body hence defines a blind bore extending between the first end of the first electrode and the first end of the body. A second electrode is provided on an outer surface of the body and terminates at one of a) flush with the first face of the body and b) a second distance d from the first end of the body in a direction towards the second end of the bod. 1. An ignition plug comprising:an elongate cylindrical body of an electrically insulating material having a first end, a second end opposite to the first end and a first face at the first end;{'b': '1', 'a first elongate electrode extending longitudinally in the body, the first electrode having a first end and a second end, the first electrode terminating at the first end thereof a first distance d from the first end of the body in a direction towards the second end of the body;'}the body comprising internal sidewalls defining a bore having a constant transverse cross sectional area, the sidewalls extending from a mouth at the first end of the body to beyond the first end of the first electrode, so that the sidewalls and the first end, which is located inside the bore, collectively define a blind bore extending from the mouth in a direction towards the second end of the body and terminating at the first end of the first electrode; and{'b': '2', 'a second electrode which is provided on an outer surface of the body and which terminates at one of a) flush with the first face of the body and b) a second distance d from the first end of the body in a direction towards the second ...

IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE AND A CONTROL METHOD THEREOF

An ignition system () comprises a high voltage transformer () comprising a primary winding () and a secondary winding (). A primary resonant circuit () is formed by the primary winding () and a primary circuit capacitance (). A secondary resonant circuit () is formed by an ignition plug (), as a load, the secondary winding (); the ignition plug () being represented by a secondary circuit capacitance () and a secondary circuit load resistance (Rp) put in parallel. Said load resistance value varies during an ignition cycle. The primary resonant circuit () and the secondary resonant circuit () have a common mode resonance frequency (f) and a differential mode resonance frequency (f). A controller () is configured to cause a drive circuit () to drive the primary winding at a frequency, which is either the common-mode resonance frequency (f) or the differential mode resonance frequency (f) and is connected to a feed-back circuit () to adapt the frequency of the primary winding to the variable load resistance. 1. An ignition system comprising:{'sub': 1', '2, 'a high voltage transformer comprising a primary winding having a first inductance Land a secondary winding having a second inductance L;'}{'sub': 1', '1, 'a primary resonant circuit comprising the primary winding and a primary circuit capacitance Cand having a first resonant frequency f;'}{'sub': 2', '2, 'an ignition plug connected to the secondary winding as a load, in use, to form a secondary resonant circuit comprising the secondary winding, a secondary circuit capacitance Cwhich comprises capacitance of the secondary winding and capacitance presented by the load and a secondary circuit load resistance Rp which comprises losses in the secondary winding and resistance presented by the load, the secondary circuit load resistance, in use and during an ignition cycle, changing between a first value that is high and a second value that is low, the secondary resonant circuit having a second resonant frequency f;'}a ...

CORONA IGNITION DEVICE AND ASSEMBLY METHOD

A reversed-assembled corona igniter including an insulator, central electrode, and metal shell, wherein an outer diameter of the insulator increases adjacent a lower end of the metal shell to achieve an electrical advantage is provided. In addition, the insulator maintains strength because is not placed under tension during or after assembly, or once disposed in an engine. To achieve the increase in insulator outer diameter, the insulator includes a lower shoulder adjacent the shell firing end. An intermediate part, such as braze and/or a metal ring, is disposed between the insulator outer surface and the shell adjacent the shell firing end. To prevent tension in the insulator, the insulator can be supported at only one location between the insulator upper end and the insulator lower end, for example along the intermediate part. 1. A corona igniter for emitting a radio frequency electric field to ionize a fuel-air mixture and provide a corona discharge , comprising:a central electrode formed of an electrically conductive material for receiving a high radio frequency voltage and emitting the radio frequency electric field;an insulator formed of an electrically insulating material surrounding said central electrode and extending longitudinally from an insulator upper end to an insulator nose end;said insulator including an insulator outer surface extending from said insulator upper end to said insulator nose end;said insulator outer surface presenting an insulator outer diameter;said insulator outer surface including an insulator lower shoulder extending outwardly and located between said insulator upper end and said insulator nose end;said insulator lower shoulder presenting an increase in said insulator outer diameter;a shell surrounding at least a portion of said insulator and extending from a shell upper end to a shell firing end;said shell presenting a shell inner surface facing and extending along said insulator outer surface from said shell upper end to said ...

CORONA IGNITION DEVICE WITH IMPROVED ELECTRICAL PERFORMANCE

A corona comprises a central electrode surrounded by an insulator, which is surrounded by a conductive component. The conductive component includes a shell and an intermediate part both formed of an electrically conductive material. The intermediate part is a layer of metal which brazes the insulator to the shell. An outer surface of the insulator presents a lower ledge, and the layer of metal can be applied to the insulator above the lower ledge prior to or after inserting the insulator into the shell. The conductive inner diameter is less than an insulator outer diameter directly below the lower ledge such the insulator thickness increases toward the electrode firing end. The insulator outer diameter is also typically less than the shell inner diameter so that the corona igniter can be forward-assembled. 1. A corona igniter for emitting a radio frequency electric field to ionize a fuel-air mixture and provide a corona discharge , comprising:a central electrode formed of an electrically conductive material for receiving a high radio frequency voltage and emitting the radio frequency electric field;an insulator formed of an electrically insulating material surrounding said central electrode and extending longitudinally along a center axis from an insulator upper end to an insulator nose end;said insulator including an insulator outer surface extending from said insulator upper end to said insulator nose end;said insulator outer surface presenting an insulator outer diameter extending across and perpendicular to said center axis;said insulator including an insulator body region and an insulator nose region;said insulator outer surface including a lower ledge extending outwardly away from said center axis between said insulator body region and said insulator nose region;said lower ledge presenting an increase in said insulator outer diameter;a conductive component surrounding at least a portion of said insulator body region such that said insulator nose region extends ...

DUAL SIGNAL COAXIAL CAVITY RESONATOR PLASMA GENERATION

A plasma generator comprises a radio frequency power source, a coaxial cavity resonator assembly, and a direct current power source. The radio frequency power source provides a voltage supply of radio frequency power having a first ratio of power over voltage. The resonator assembly includes a center conductor coupled to the radio frequency power source, and also includes a virtual short circuit. The direct current power source is connected to the center conductor at the virtual short circuit, and provides a voltage supply of direct current power having a second ratio of power over voltage that is less than the first ratio. 1. A plasma generator comprising:a source of radio frequency power;a coaxial cavity resonator assembly including a center conductor that is both oriented in a coupling arrangement to the source of radio frequency power and is configured to maintain a voltage null at a first location; anda source of direct current power connected to the center conductor proximal to the first location.2. The plasma generator of claim 1 , further comprising:a radio frequency control component connected between the source of direct current power and the coaxial cavity resonator assembly, and configured to restrict the passage of a voltage supply of radio frequency power to the source of direct current power.3. The plasma generator of claim 2 , wherein the radio frequency control component is an additional resonator assembly configured to shift the voltage supply of radio frequency power 180 degrees out of phase relative to a ground plane of the coaxial cavity resonator assembly.4. The plasma generator of claim 1 , wherein the coaxial cavity resonator assembly comprises a plurality of quarter wave coaxial cavity resonators coupled in a series arrangement claim 1 , the resonators including center conductors coupled to the source of radio frequency power.5. The plasma generator of claim 1 , further comprising:a power source controller configured to direct the source of ...

Method and apparatus for operating traveling spark igniter at high pressure

An ignition circuit and a method of operating an igniter (preferably a traveling spark igniter) in an internal combustion engine, including a high pressure engine. A high voltage is applied to electrodes of the igniter, sufficient to cause breakdown to occur between the electrodes, resulting in a high current electrical discharge in the igniter, over a surface of an isolator between the electrodes, and formation of a plasma kernel in a fuel-air mixture adjacent said surface. Following breakdown, a sequence of one or more lower voltage and lower current pulses is applied to said electrodes, with a low “simmer” current being sustained through the plasma between pulses, preventing total plasma recombination and allowing the plasma kernel to move toward a free end of the electrodes with each pulse. 16-. (canceled)7. A method of plasma generation , comprising:a. applying to an igniter having at least a pair of electrodes a voltage of amplitude sufficient to cause breakdown to occur between the electrodes, resulting in a high current electrical discharge in the igniter in an initiation region, and formation of a plasma kernel adjacent said initiation region; andb. following breakdown, applying to said electrodes at least one follow-on pulse by discharging a plasma-sustaining capacitor via a current-controlling discharge path, wherein the discharge path includes a switching element between the plasma-sustaining capacitor and the electrodes.8. The method of claim 7 , wherein the switching element is of a type that can be switched while current therethrough is not zero.9. The method of claim 8 , wherein the switching of the switching element includes turning off the switching element while the current therethrough is not zero.10. The method of claim 8 , wherein-the at least one follow-on pulse are voltage pulses generated by the capacitor pulling its discharge current through an inductance.11. The method of claim 10 , wherein the inductance is in series with the capacitor ...

IGNITER ASSEMBLY WITH IMPROVED INSULATION AND METHOD OF INSULATING THE IGNITER ASSEMBLY

An igniter assembly comprising an ignition coil assembly connected to a firing end assembly by an extension, with a valve assembly disposed in a pressure chamber of the extension, is provided. The valve assembly includes a valve stem biased toward the ignition coil assembly by a spring to seal the pressure chamber. The valve assembly is used to evacuate contents from the pressure chamber by pressing the valve stem toward the spring and allowing contents of the pressure chamber to travel through and past the valve stem and out of the pressure chamber. The valve assembly is also used to fill the pressure chamber with an insulating medium by pressing the valve stem toward the spring and allowing the insulating medium to travel through and past the valve stem and into the pressure chamber after evacuating the contents out of the pressure chamber. 1. A method of manufacturing an igniter assembly , comprising the steps of:coupling a central conductor to a firing end assembly including an igniter,coupling the firing end assembly to an extension containing a pressure chamber,disposing a valve assembly in the pressure chamber of the extension, the valve assembly including a valve stem, and the valve stem and/or a sealing device located around the valve stem sealing the pressure chamber when the valve stem is biased away from the firing end assembly by a spring,evacuating contents of the pressure chamber by pressing the valve stem toward the spring and allowing contents of the pressure chamber to travel past the valve stem and out of the pressure chamber,filling the pressure chamber with an insulating medium by pressing the valve stem toward the spring and allowing the insulating medium to travel past the valve stem and into the pressure chamber after evacuating the contents out of the pressure chamber,biasing the valve stem away from the firing end assembly with the spring so that the valve stem maintains a seal of the pressure chamber containing the insulating medium, ...

METHOD AND APPARATUS FOR OPERATING TRAVELING SPARK IGNITER AT HIGH PRESSURE

An ignition circuit and a method of operating an igniter (preferably a traveling spark igniter) in an internal combustion engine, including a high pressure engine. A high voltage is applied to electrodes of the igniter, sufficient to cause breakdown to occur between the electrodes, resulting in a high current electrical discharge in the igniter, over a surface of an isolator between the electrodes, and formation of a plasma kernel in a fuel-air mixture adjacent said surface. Following breakdown, a sequence of one or more lower voltage and lower current pulses is applied to said electrodes, with a low “simmer” current being sustained through the plasma between pulses, preventing total plasma recombination and allowing the plasma kernel to move toward a free end of the electrodes with each pulse. 1. A method of plasma generation , comprising:a. applying to an igniter having at least a pair of electrodes a voltage of amplitude sufficient to cause breakdown to occur between the electrodes, resulting in a high current electrical discharge in the igniter in an initiation region, and formation of a plasma kernel adjacent said initiation region; andb. following breakdown, applying to said electrodes at least one follow-on pulse by discharging a plasma-sustaining capacitor via a current-controlling discharge path.2. The method of claim 1 , wherein the discharge path comprises a switching element of a type that can be switched while current therethrough is not zero.3. The method of claim 2 , wherein the switching of the switching element includes turning off the switching element while the current therethrough is not zero.4. The method of claim 2 , wherein one or more of the follow-on pulses are voltage pulses generated by the capacitor pulling its discharge current through an inductance.5. The method of claim 4 , wherein the inductance is in series with the capacitor and one of the electrodes.6. The method of claim 1 , wherein the discharge path modulates a discharge current ...

METHOD AND APPARATUS FOR OPERATING TRAVELING SPARK IGNITER AT HIGH PRESSURE

An ignition circuit and a method of operating an igniter (preferably a traveling spark igniter) in an internal combustion engine, including a high pressure engine. A high voltage is applied to electrodes of the igniter, sufficient to cause breakdown to occur between the electrodes, resulting in a high current electrical discharge in the igniter, over a surface of an isolator between the electrodes, and formation of a plasma kernel in a fuel-air mixture adjacent said surface. Following breakdown, a sequence of one or more lower voltage and lower current pulses is applied to said electrodes, with a low “simmer” current being sustained through the plasma between pulses, preventing total plasma recombination and allowing the plasma kernel to move toward a free end of the electrodes with each pulse. 16-. (canceled)7. A method of plasma generation , comprising:a. applying to an igniter having at least a pair of electrodes a voltage of amplitude sufficient to cause breakdown to occur between the electrodes, resulting in a high current electrical discharge in the igniter in an initiation region, and formation of a plasma kernel adjacent said initiation region; andb. switching a switching element in a discharge path of a pulse generator, wherein the switching element is of a type that can be switched while current therethrough is not zero.8. The method of claim 7 , further comprising claim 7 , following breakdown claim 7 , applying to said electrodes at least one follow-on pulse by discharging a plasma-sustaining capacitor via the discharge path.9. The method of claim 8 , wherein one or more of the at least one follow-on pulse are voltage pulses generated by the capacitor pulling its discharge current through an inductance.10. The method of claim 9 , wherein the inductance is in series with the capacitor and one of the electrodes.11. The method of claim 8 , wherein the discharge path modulates a discharge current of the capacitor.12. A circuit for plasma generation claim 8 , ...

Method and apparatus for operating traveling spark igniter at high pressure

An ignition circuit and a method of operating an igniter (preferably a traveling spark igniter) in an internal combustion engine, including a high pressure engine. A high voltage is applied to electrodes of the igniter, sufficient to cause breakdown to occur between the electrodes, resulting in a high current electrical discharge in the igniter, over a surface of an isolator between the electrodes, and formation of a plasma kernel in a fuel-air mixture adjacent said surface. Following breakdown, a sequence of one or more lower voltage and lower current pulses is applied to said electrodes, with a low “simmer” current being sustained through the plasma between pulses, preventing total plasma recombination and allowing the plasma kernel to move toward a free end of the electrodes with each pulse.

System and method for generating and sustaining a corona electric discharge for igniting a combustible gaseous mixture

The invention relates to a system for igniting a fuel-air mixture in a combustion chamber with a corona discharge. The system comprises an electrode inside of the combustion chamber, an electric circuit which provides radio frequency electric power to the electrode, and a ground formed by the combustion chamber walls. A radio frequency voltage differential formed between the electrode and the ground produces a radio frequency electric field therebetween which causes a fuel-air mixture to ionize resulting in combustion of the fuel-air mixture. The system can be utilized in engines such as internal combustion engines or gas turbine engines, for example.

多触发的电晕放电点火组件及其控制和操作方法

本发明提供了一种电晕点火系统（20），其包括用于接收电能脉冲的点火器（22），各电能脉冲分别具有一射频。该点火器（22）发射电离燃料-空气混合物的电场脉冲，并在相同的时间段内提供多个电晕放电（24）脉冲，而不是提供一个连续的、非脉冲式电晕放电。系统（20）包括至少一个电源（48、50），其将电能提供至电晕驱动电路（52），该电能最终被提供至点火器（22）。系统（20）可以包括一可变高压电源（50）以及一本地电荷存储装置（70），以将电能脉冲提供至电晕驱动电路（52）。与单触发的电晕放电点火系统相比，该系统（20）提供了稳健的点火，并增强了防止电弧形成的能力，同时消耗了较少的能量。

Traveling spark ignition system and ignitor therefor

본 발명은 내연 기관에서 연소 가능한 혼합물을 점화시키기 위한 플라즈마 점화 장치, 또는 플라즈마 발생원에 관한 것이다. 점화 장치는 전압이 전극을 가로질러 인가되는 경우에 외향 이동되는 플라즈마가 형성되도록 하는 치수를 갖고 배열된 적어도 두 개의 이격된 전극을 포함한다. 본 발명은 플라즈마 점화 장치를 구동시키기 위한 입력 전기 에너지의 효율적인 사용과, 종래 스파크 플러그에 의해 발생되는 크기를 여러배 초과하는 점화 플라즈마 핵을 특징으로 한다. 플라즈마 핵의 외향 운동 및 팽창은 혼합물에서의 초기 플라즈마 발생 후에 혼합물을 통해 전극 사이에 인가된 전압 및 전류 사이의 상호 작용으로부터 상부에 발생되는 로렌츠힘에 의해 발생된다. 혼합물의 희석이 배기 가스 재순환의 사용에 의해 성취되는 매우 희박한 상태의 연소 가능한 혼합물의 사용은 본 발명의 점화 시스템에 의해 가능해진다. 엔지 효율의 개선 및 NO X 가스 오염의 대폭 감소가 얻어진다. The present invention relates to a plasma ignition apparatus or a plasma generating source for igniting a combustible mixture in an internal combustion engine. The ignition device includes at least two spaced apart electrodes arranged with dimensions such that an outwardly moving plasma is formed when a voltage is applied across the electrodes. The invention features an efficient use of input electrical energy to drive a plasma ignition device, and an ignition plasma nucleus that exceeds several times the size generated by conventional spark plugs. The outward motion and expansion of the plasma nucleus is caused by the Lorentz force generated on top from the interaction between the voltage and current applied between the electrodes through the mixture after the initial plasma generation in the mixture. The use of a very lean combustible mixture in which dilution of the mixture is achieved by the use of exhaust gas recirculation is made possible by the ignition system of the present invention. The improvement of the engine efficiency and NO X significantly reduces contamination of the gas is obtained.

Ignitor for air/fuel mixture and engine therewith and method of assembly thereof into a cylinder head

내연기관과 그 점화기가 구비되어 있다. 점화기는 노스 끝과 단자 끝 사이에 뻗어 있는 절연체를 가지고 있고 전극은 노스 끝으로부터 바깥쪽으로 뻗어서 실린더 챔버로 공기/연료 혼합기를 점화한다. 단자는 단자 끝으로부터 뻗어 있고 그리고 전극과 통전된다. 금속 쉘은 절연체의 적어도 일부를 둘러싼다. 금속 쉘은 실린더 블록에 부착하기 위한 외경나사가 없다. 커넥팅 와이어가 전원과 통전을 위해 단자로부터 뻗어 있다. 튜브는 절연체의 단자 끝을 수용하는 하부 끝을 가지고 있다. 튜브는 커넥팅 와이어에 대하여 하부 끝과 대향하는 상부 끝으로 뻗어 있다. 튜브의 하부 끝은 실린더 헤드의 개구부 내에서 고정된 관계로 쉘을 압축한다. An internal combustion engine and its igniter are provided. The igniter has an insulator extending between the nose end and the terminal end and the electrode extends outward from the nose end to ignite the air / fuel mixer into the cylinder chamber. The terminal extends from the terminal end and is energized with the electrode. The metal shell surrounds at least a portion of the insulator. The metal shell does not have an outer diameter screw for attachment to the cylinder block. A connecting wire extends from the terminal for power and energization. The tube has a lower end that receives the terminal end of the insulator. The tube extends to the upper end opposite the lower end with respect to the connecting wire. The lower end of the tube compresses the shell in a fixed relationship within the opening of the cylinder head.

Short-circuit prevention in an RF spark plug

本发明涉及一种火花塞，包括：一个中心电极（10），该中心电极包括一个上端（18）和一个下端（17）；一个绝缘零件（11），该绝缘零件具有一个上部分和一个下部分、并且围绕该中心电极从而使该中心电极的下端（17）延伸超过该绝缘零件的下部分；一个外罩（12），该外罩具有一个上部分（36）和一个下部分（37），该下部分包括一个端段（14），并且该外罩围绕该绝缘零件从而使该绝缘零件的下部分延伸超过该外罩的下部分，其特征在于，该绝缘零件包括一个环形槽（19），该环形槽在该绝缘零件外周边上、在该外罩的下端处；并且其特征在于，该外罩的下端段（14）被置于在该槽中。

Corona igniter including temperature control features

A corona igniter (20) with improved temperature control at the ignition end is provided. The corona igniter 20 comprises a core material 30, such as copper, surrounded by a cladding material 32, such as nickel. The core material 30 extends longitudinally between the electrode terminal end 34 and the electrode ignition end 36. The core material 30 is disposed at the electrode terminal end 34 and has a core length l c equal to at least 09% of the electrode length l e of the center electrode 24. At least 97% of the core length l c is surrounded by the insulator 26. The electrode diameter is set such that the clad thickness tcl of the center electrode 24 is equal to at least 5% of the insulator thickness t i and the core diameter D c is equal to at least 30% of the insulator thickness t i .

Ignition plug with radio frequency plasma

FIELD: electrics. ^ SUBSTANCE: plug includes annular shell (3) with main axis D; central electrode (7) made of second electroconductive material, running along main axis D and including internal section (8) inside the annular shell (3) and external section (9) outside the annular shell (3); annular electric insulation component (10) running at least around internal section (8) of central electrode (7) and fitting for installation between shell (3) and electrode (7), so that insulation component (10) covers only a part of external section (9) of central electrode (7), and insulation part (10) features annular collar covering the whole surface (6) of round shell outlet against uncovered part (16) of electrode (7). ^ EFFECT: increased probability of inflaming mix around the ignition plug installed in combustion chamber. ^ 10 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 352 041 (13) C1 (51) МПК H01T 13/52 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2007122515/06, 27.10.2005 (24) Дата начала отсчета срока действия патента: 27.10.2005 (72) Автор(ы): ЖАФФРЕЗИК Ксавье (FR), АНЬЕРАЙ Андре (FR) (45) Опубликовано: 10.04.2009 Бюл. № 10 2 3 5 2 0 4 1 (56) Список документов, цитированных в отчете о поиске: DE 19723784 C1, 20.08.1998. JP 57186066 A, 16.11.1982. RU 2192082 C1, 27.10.2002. RU 18863 U1, 20.07.2001. RU 2099584 C1, 20.12.1997. FR 2816119 A, 03.05.2002. (85) Дата перевода заявки PCT на национальную фазу: 18.06.2007 2 3 5 2 0 4 1 R U (87) Публикация PCT: WO 2006/054009 (26.05.2006) C 1 C 1 (86) Заявка PCT: FR 2005/050909 (27.10.2005) Адрес для переписки: 103735, Москва, ул. Ильинка, 5/2, ООО "Союзпатент", пат.пов. Ю.В.Облову, рег.№ 905 (54) СВЕЧА ЗАЖИГАНИЯ С РАДИОЧАСТОТНОЙ ПЛАЗМОЙ (57) Реферат: Изобретение относится к свечам зажигания с радиочастотной плазмой, разработанным для установки в камере сгорания. Свеча содержит кольцевую оболочку (3) с основной осью D; ...

Ignition system for an internal combustion engine and method of controlling such system

FIELD: transportation.SUBSTANCE: invention relates to the field of transport, in particular to the internal combustion engine ignition system and the ignition plug control method. Disclosed is ignition system (10) with high-voltage transformer (12) with primary (12.1) and secondary (12.2) winding. Primary resonance circuit (26) is formed by primary winding (12.1) and the primary circuit capacitor (24). Secondary resonant circuit (16) is formed by ignition plug (14) as load of secondary winding (12.2). Ignition plug (14) is represented by capacity (18) of secondary circuit and resistance (Rp) of secondary circuit load connected in parallel. Load resistance varies during ignition cycle. Primary resonant circuit (26) and secondary resonant circuit (16) have in-phase resonant frequency (f) and differential resonance frequency (f). Controller (28) is configured to cause excitation of primary winding by means of excitation circuit (22) at frequency, which is in-phase resonant frequency (f) or differential resonance frequency (f), and controller is connected to feedback circuit (50) to adapt frequency of primary winding to variable resistance of load.EFFECT: technical result is control of value of power supplied to ignition plug between different cycles.8 cl, 9 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 687 739 C2 (51) МПК F02P 17/12 (2006.01) F02P 3/01 (2006.01) H01T 13/44 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F02P 17/12 (2018.08); F02P 3/01 (2018.08); F02P 9/002 (2018.08); H01T 13/44 (2018.08) (21)(22) Заявка: 2017118447, 30.10.2015 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): НОРТ-ВЕСТ ЮНИВЕРСИТИ (ZA) Дата регистрации: 16.05.2019 30.10.2014 ZA 2014/07931 (43) Дата публикации заявки: 30.11.2018 Бюл. № 34 (45) Опубликовано: 16.05.2019 Бюл. № 14 3000324 A1, 2014-06-27. RU 2488016 С2, 201307-20. US 2012249006 A1, 2012-10-04. CA 2856543 A1, 2014-09-19. US 7685999 B2, 201003 ...

Method and apparatus for operating a traveling spark igniter at high pressure

An ignition circuit and a method of operating an igniter (preferably a travelling spark igniter) in an internal combustion engine, including a high pressure engine. A high voltage is applied to electrodes of the igniter, sufficient to cause breakdown to occur between the electrodes, resulting in a high current electrical discharge in the igniter, over a surface of an isolator between the electrodes, and formation of a plasma kernel in a fuel-air mixture adjacent said surface. Following breakdown, a sequence of one or more lower voltage and lower current pulses is applied to said electrodes, with a low "simmer" current being sustained through the plasma between pulses, preventing total plasma recombination and allowing the plasma kernel to move toward a free end of the electrodes with each pulse.

Ignition plug

FIELD: internal combustion engines. SUBSTANCE: ignition plug 10 comprises an elongated cylindrical housing (12) made of an electrically insulating material, having first end (12.1) with a first face surface (14) and second end (12.2), opposite to the first one. First elongated electrode (16) having first end (16.1) and second end (16.2) extends in the housing in its longitudinal direction. First end of the electrode ends at a first distance d1 from the first face end of the body towards the second end of the body so that blind hole (18) is formed between the first end of the first electrode and the first end of the body. On outer surface of housing there is a second electrode, which ends or flushes with first face surface (14) of housing, or at second distance d2 from first front end of housing in direction to second end of housing. EFFECT: invention relates to an ignition plug for an internal combustion engine. 8 cl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК H01T 13/20 H01T 13/50 H01T 13/52 H01T 19/00 (11) (13) 2 696 718 C2 (2006.01) (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК H01T 13/20 (2019.05); H01T 13/50 (2019.05); H01T 13/52 (2019.05); H01T 19/00 (2019.05); H01T 21/02 (2019.05) (21)(22) Заявка: 2017118094, 28.10.2015 28.10.2015 (73) Патентообладатель(и): НОРТ-ВЕСТ ЮНИВЕРСИТИ (ZA) Дата регистрации: 05.08.2019 28.10.2014 ZA 2014/07851 (43) Дата публикации заявки: 30.11.2018 Бюл. № 34 (56) Список документов, цитированных в отчете о поиске: RU 2059334 C1, 27.04.1996. RU 1580 U1, 16.01.1996. RU 2402126 C2, 20.10.2010. US 20130003251 A1, 03.01.2013. US 20100212620 A1, 26.08.2010. (45) Опубликовано: 05.08.2019 Бюл. № 22 (86) Заявка PCT: IB 2015/058299 (28.10.2015) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 29.05.2017 (87) Публикация заявки PCT: 2 6 9 6 7 1 8 WO 2016/067209 (06.05.2016) R U 2 6 9 6 7 1 8 Приоритет(ы): (30) Конвенционный приоритет: R U (24 ...

PLASMA GENERATION WITH A COAXIAL RESONATOR USING TWO SIGNALS

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2016 143 542 A (51) МПК F02P 9/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2016143542, 07.04.2015 (71) Заявитель(и): ПЛАЗМА ИГНИТЕР, ЭлЭлСи (US) Приоритет(ы): (30) Конвенционный приоритет: 08.04.2014 US 61/976,843 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 08.11.2016 R U (43) Дата публикации заявки: 08.05.2018 Бюл. № 13 (72) Автор(ы): СПЕНСЕР Майкл Дж. (US), ЛОУЭРИ Эндрю Д. (US), СМИТ Джеймс И. (US) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2015/157294 (15.10.2015) A Адрес для переписки: 129090, Москва, ул. Большая Спасская, д. 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" R U (57) Формула изобретения 1. Генератор плазмы, содержащий: источник радиочастотной мощности; и узел коаксиального резонатора, включающий в себя центральный проводник, который ориентирован таким образом, что он имеет связь с источником радиочастотной мощности, и выполнен с возможностью поддерживать нулевое напряжение в первом месте. 2. Генератор плазмы по п. 1, дополнительно содержащий источник мощности постоянного тока. 3. Генератор плазмы по п. 2, в котором источник мощности постоянного тока соединен с центральным проводником проксимально к первому месту. 4. Генератор плазмы по п. 2, дополнительно содержащий радиочастотный компонент управления, присоединенный между источником мощности постоянного тока и узлом коаксиального резонатора и выполненный с возможностью препятствовать прохождению подачи напряжения радиочастотной мощности к источнику мощности постоянного тока. 5. Генератор плазмы по п. 4, в котором радиочастотный компонент управления представляет собой дополнительный узел резонатора, выполненный с возможностью осуществлять сдвиг по фазе подачи напряжения радиочастотной мощности на 180 Стр.: 1 A 2 0 1 6 1 4 3 5 4 2 (54) ГЕНЕРИРОВАНИЕ ПЛАЗМЫ С КОАКСИАЛЬНЫМ РЕЗОНАТОРОМ, ИСПОЛЬЗУЮЩИМ ДВА СИГНАЛА 2 0 1 6 1 4 3 5 4 2 US 2015/024727 (07.04.2015) ...

Plasma-jet spark plug

플라스마 스트림에서, 중심 전극, 절연체 재료로 형성된 쇼트 채널 및 접지 전극을 가진 내연기관용 스파크 플러그에 있어서, 쇼트 채널은 중심과 일치하여 형성되며, 배출 개구부가 형성되고, 중심 전극은 원뿔형의 형상이다. 상기 쇼트 채널은 테이퍼 구조를 위하여 접지 전극을 향하는 경로에서 플라스마를 생성하는 가속 존을 가진다.

It can be used for the spark plug of hf ignition system

本发明涉及一种可用于内燃机的火花塞(100)，特别地，所述内燃机包括高频点火系统，火花塞(100)具有中心电极(28；128)、接地电极(12；112)、和设置在所述中心电极(28；128)和所述接地电极(12；112)之间的电绝缘体(18；118)；其中，用于将所述中心电极(28；128)连接到点火系统的中心电极连接点(26；126)设置在所述绝缘体(18；118)上；其中，所述中心电极(28；128)和所述接地电极(12；112)在所述火花塞(100)的轴向端(114)伸出所述绝缘体(18；118)，且具有轴向伸出所述绝缘体(18；118)的部分，分别构造成中心电极端(140)和接地电极端(142)；其中，所述中心电极端(140)和接地电极端(142)布置和构成为在所述中心电极端(140)和所述接地电极端(142)之间沿轴向方向形成间隙(146)的轴向区域(170)；其中，所述间隙(146)的轴向区域(170)远离所述绝缘体(18；118)；其中，设置至少一个附加电极(150)，所述附加电极(150)在所述火花塞(100)的轴向端(114)伸出所述绝缘体(118)，并且一部分轴向地伸出所述绝缘体(118)，构造为附加电极端(154)。在此，所述附加电极(150)设置为在所述火花塞上与所述接地电极(112)和所述中心电极(128)电绝缘；其中，所述附加电极端(154)伸入到所述中心电极端(140)和所述接地电极端(142)之间的间隙(146)的轴向区域(170)，或者所述附加电极端(154)设置于所述间隙(146)的区域(170)内，所述间隙(146)的区域(170)径向接近所述间隙(146)的轴向区域(170)，因此所述附加电极端(154)将所述间隙(146)分成两个点火火花部分(156,166)。

There is the corona ignition of selectivity electric arc

本发明提供一种具有选择性电弧的电晕点火系统，该点火系统包括一电极(38)，该电极(38)发射射频电场并提供一电晕放电(24)，以点燃可燃混合物。该系统包括一受控高压电源(52)，该高压电源(52)在主电压下向一主储能器(28)提供能量。一固定高压电源(54)在额外电压下向一额外储能器(26)提供额外能量，且该额外电压大于主电压。在产生电晕放电(24)的同时，主储能器(28)的能量被提供至电极(38)，而额外储能器(26)的能量不被提供至电极(38)。当电晕放电(24)切换至电弧放电时，额外储能器(26)的额外能量被提供至电晕点火器(22)，以增强电弧放电并且在电晕放电(24)恢复前提供可靠的点火。

Spark plug

本发明提供一种火花塞，其能够抑制能量的损失，提高引燃性。火花塞具备：有底筒状的绝缘体，从前端侧向后端侧沿着轴线延伸，并且前端封闭；以及筒状的主体配件，具备向径向内侧伸出且从前端侧卡定绝缘体的斜坡部，并且从外周侧保持绝缘体。火花塞具备：导电层，覆盖绝缘体中的相比卡定于斜坡部的卡定部更靠前端侧的部位的内周面的至少一部分；以及端子，与导电层电连接，并且与主体配件绝缘。

Patent RU2016149306A3

ВИ“? 2016149306” АЗ Дата публикации: 20.12.2018 Форма № 18 ИЗИМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2016149306/06(079202) 18.05.2015 РСТЛО52015/031451 18.05.2015 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 61/994,332 16.05.2014 05 Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) ДИАГНОСТИКА СРЕДЫ ГОРЕНИЯ Заявитель: ПЛАЗМА ИГНИТЕР ЭлЭлСи, 05 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. п см. Примечания [ ] приняты во внимание следующие пункты: р [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) Е02Р 23/04 (2006.01) Е02Р 3/01 (2006.01) Е02Р 9/00 (2006.01) НОГР 7/04 (2006.01) НОГР 7/06 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) ВО2Р 1/00-23/00; НОТР 1/00-11/00 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): СТРО, РЕРАТБ пес, РУУРТ, ЕАРАТТУ, Езрасепек, 7-Р1а Ра, КТРК 5, РАТЕМТЗСОРЕ, Ра еагсй, КОРТО, ТРО, ИЗРТО 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- Наименование ...

Multi-event corona discharge ignition assembly and method of control and operation

本发明提供了一种电晕点火系统（20），其包括用于接收电能脉冲的点火器（22），各电能脉冲分别具有一射频。该点火器（22）发射电离燃料-空气混合物的电场脉冲，并在相同的时间段内提供多个电晕放电（24）脉冲，而不是提供一个连续的、非脉冲式电晕放电。系统（20）包括至少一个电源（48、50），其将电能提供至电晕驱动电路（52），该电能最终被提供至点火器（22）。系统（20）可以包括一可变高压电源（50）以及一本地电荷存储装置（70），以将电能脉冲提供至电晕驱动电路（52）。与单触发的电晕放电点火系统相比，该系统（20）提供了稳健的点火，并增强了防止电弧形成的能力，同时消耗了较少的能量。

Patent RU2016143542A3

`7ВУ’” 2016143542`” АЗ Дата публикации: 18.07.2018 Форма № 18 ИЗ,ПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение ж Я «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2016143542/07(069772) 07.04.2015 РСТЛ52015/02472/77 07.04.2015 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 61/976,843 08.04.2014 05 Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) ГЕНЕРИРОВАНИЕ ПЛАЗМЫ С КОАКСИАЛЬНЫМ РЕЗОНАТОРОМ, ИСПОЛЬЗУЮЩИМ ДВА СИГНАЛА Заявитель: ПЛАЗМА ИГНИТЕР, ЭлЭлСи, 05 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) Е02Р 9/00 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) НО?Р 9/00 (2006.01)1 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): РУУРТ, Ебрасепе, Соозе Рав, ]-Р]а( Ра, РАТЕМТЗСОРЕ, Рабеагсь, КОРТО, ТРО, ОРТО 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- Наименование документа с указанием (где необходимо) частей, Относится к гория* относящихся ...

High frequency plasma generator

Spark plug for high frequency ignition systems

본 발명은 특히 고주파 점화 시스템을 구비하고, 중심 전극(28;128), 접지 전극(12;112), 및 상기 중심 전극(28;128)과 상기 접지 전극(12;112) 사이에 배치된 전기 절연체(18;118)를 구비하는 내연 기관용 스파크 플러그(100)로서, 점화 시스템에 상기 중심 전극(28;128)을 전기 접속하기 위한 중심 전극 접속점(26;126)은 상기 절연체(18;118) 상에 제공되고, 상기 중심 전극(28;128)과 상기 접지 전극(12;112)은 상기 스파크 플러그(100)의 축 단부(114)에서 상기 절연체(18;118)를 지나서 돌출하고, 각각은 상기 절연체(18;118)를 지나서 축방향으로 돌출하는 부분을 가져, 중심 전극 단부(140) 및 접지 전극 단부(142)를 형성하며, 상기 중심 전극 단부(140) 및 상기 접지 전극 단부(142)는 갭(146)의 축 영역(170)이 축 방향으로 그들 사이에 형성되는 방식으로 배치되고 구현되며, 상기 갭(146)의 상기 축 영역(170)은 상기 절연체(18;118)로부터 이격되고, 상기 스파크 플러그(100)의 상기 축 단부(114)에서 상기 절연체(118)를 지나서 돌출하고 상기 절연체(118)를 지나서 축방향으로 돌출한 부분을 가져 추가 전극 단부(154)를 형성하는 적어도 하나의 추가 전극(150)이 제공된다. 이러한 경우에 상기 추가 전극(150)은 상기 스파크 플러그(100) 상에 상기 접지 전극(112) 및 상기 중심 전극(128)으로부터 전기적으로 절연되어 배치되고, 상기 추가 전극 단부(154)는 상기 중심 전극 단부(140)와 상기 접지 전극 단부(142) 사이의 상기 갭(146)의 축 영역(170) 내로 돌출하거나 상기 갭(146)의 축 영역(170)에 반경 방향으로 인접한 상기 갭(146)의 영역(172) 내로 배치됨으로써 상기 갭(146)을 2개의 점화 스파크 갭들(156,166)로 분할한다. The present invention particularly includes a high-frequency ignition system, the center electrode (28;128), the ground electrode (12;112), and the electricity disposed between the center electrode (28;128) and the ground electrode (12;112) A spark plug (100) for an internal combustion engine having an insulator (18; 118), the central electrode connection point (26; 126) for electrically connecting the center electrode (28; 128) to an ignition system is the insulator (18; 118) Provided above, the center electrode 28 and 128 and the ground electrode 12 and 112 protrude beyond the insulator 18 and 118 at the axial end 114 of the spark plug 100, each of which Having a portion protruding in the axial direction past the insulator (18; 118), forming a center electrode end 140 and a ground electrode end 142, the center electrode end 140 and the ground electrode end 142 Is arranged and implemented in such a way that the axial region 170 of the gap 146 is formed between them in the axial direction, the axial region 170 of the gap 146 ...

Spark plug

Patent RU2017118094A3

ВУ” 2017118094” АЗ Дата публикации: 28.05.2019 Форма № 18 ИЗИМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2017118094/06(031290) 28.10.2015 РСТЛВ2015/058299 28.10.2015 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 2014/07851 28.10.2014 ГА Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) СВЕЧА ЗАЖИГАНИЯ Заявитель: НОРТ-ВЕСТ ЮНИВЕРСИТИ, /А 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. П см. Примечания [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) НОГТ 13/20 (2006.01) НОГТ 13/50 (2006.01) НОГТ 13/52 (2006.01) НОГТ 19/00 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) НОТТ 1/00-23/00 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): СТРО, СМГРА, РЕРАТБЗ пес, РУУРТ, ЕАРАТТУ, Езрасепеф, ]-Р]а Ра, КТРВГ5, РАТЕМТ5СОРЕ, Ра еагсЬ, КОРТО, ОЗРТО 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- Наименование документа с указанием (где необходимо) частей, ...

Corona tip insulator

본 발명은 대체로 자동차 등에서 공기/연료 혼합물을 점화시키는데 사용되는 코로나 방전 점화기에 관한 것이다. 상기 코로나 방전 점화기에 전압이 가해질 때 아크가 형성되는 것을 억제하기 위해서, 코로나 방전 점화기는 절연기의 팁에 경사진 오목부 또는 그루브와 같은, 다양한 형상과 구성을 가지고 있다. 팁의 형상 및 구성은 보다 강화된 전계를 생성하는 작은 반경을 제공하고 보다 우수한 연소를 제공한다. The present invention relates generally to a corona discharge igniter used for igniting an air / fuel mixture in an automobile or the like. To inhibit the formation of an arc when a voltage is applied to the corona discharge igniter, the corona discharge igniter has a variety of shapes and configurations, such as sloped recesses or grooves in the tip of the isolator. The shape and configuration of the tip provides a smaller radius to produce a more enhanced electric field and provides better combustion.

There is the corona ignition device of asymmetric firing tip

本发明提供一种用于提供电晕放电（24）的电晕点火系统，该系统包括具有电极（26）的点火器（20），该电极（26）带有相对于电极中心轴（a e ）非对称的点火尖端（28）。该点火尖端（28）包括一面向燃料喷射器（42）的第一表面区域（A 1 ），该第一表面区域（A 1 ）大于面向气缸体（32）的第二表面区域（A 2 ）。第一表面区域（A 1 ）带有一具有锐边的突出部（60），且第二表面区域（A 2 ）带有一球形外表面（62）。因此，第一表面区域（A 1 ）发射的射频电场在燃料喷雾的外部边缘（30）处的易燃区域提供稳健的电晕放电（24）。第二表面区域（A 2 ）不发射电场，且第二表面区域（A 2 ）与气缸体（32）之间不产生功率电弧。

IGNITION CANDLE FOR INTERNAL COMBUSTION ENGINE OF MOTOR VEHICLE

1. Свеча зажигания (1) для двигателя внутреннего сгорания моторного транспортного средства, выполненная, по существу, удлиненной формы и содержащая ! два коаксиальных электрода: внутренний электрод с осью (D), образующий центральный электрод (3), и внешний электрод, образующий корпус (2), окружающий центральный электрод (3); и ! электроизолирующий блок, образующий изолятор (4), расположенный между центральным электродом (3) и корпусом (2), имеющий кольцевую форму и кольцевой буртик (5), отличающаяся тем, что изолятор (4) содержит кольцевую канавку (8), расположенную на буртике (5). ! 2. Свеча зажигания по п.1, отличающаяся тем, что канавка (8) образует тепловое сопротивление в изоляторе (4). ! 3. Свеча зажигания (1) по п.1 или 2, отличающаяся тем, что канавка (8) имеет прямоугольное поперечное сечение. ! 4. Свеча зажигания (1) по п.1 или 2, отличающаяся тем, что канавка (8) имеет треугольное поперечное сечение. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2008 119 474 (13) A (51) МПК H01T 13/46 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21), (22) Заявка: 2008119474/06, 21.09.2006 (71) Заявитель(и): РЕНО С.А.С (FR) (30) Конвенционный приоритет: 18.10.2005 FR 0553149 (85) Дата перевода заявки PCT на национальную фазу: 19.05.2008 (87) Публикация PCT: WO 2007/045776 (26.04.2007) R U (54) СВЕЧА ЗАЖИГАНИЯ ДЛЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ МОТОРНОГО ТРАНСПОРТНОГО СРЕДСТВА (57) Формула изобретения 1. Свеча зажигания (1) для двигателя внутреннего сгорания моторного транспортного средства, выполненная, по существу, удлиненной формы и содержащая два коаксиальных электрода: внутренний электрод с осью (D), образующий центральный электрод (3), и внешний электрод, образующий корпус (2), окружающий центральный электрод (3); и электроизолирующий блок, образующий изолятор (4), расположенный между центральным электродом (3) и корпусом (2), имеющий кольцевую форму и кольцевой буртик (5), отличающаяся тем, что изолятор (4 ...

Radiofrequency plasma spark plug

발명은, 주축(D)을 가진 환형 쉘(3); 제2 도전 재료로 구성된 중앙 전극(7)으로서, 주축(D)을 따라 연장되고, 상기 환형 쉘(3) 내측에 배치된 내측부(8) 및 상기 환형 쉘(3)의 외측에 배치된 외측부(9)를 포함하는 중앙 전극(7); 환형의 전기적 절연부(10)로서, 적어도 중앙 전극(7)의 내측부(8)에 대해 연장되어 쉘(3)과 전극(7) 사이에 삽입되고, 중앙 전극(7)의 외측부(9)의 일부만을 커버하는 절연부(10)를 포함하는 연소 챔버(2)에 장착되는 소위 고주파 플라즈마 스파크 플러그에 관한 것이다. 절연부(10)는 전극(7)의 노출부(16)에 대해 상대적으로 쉘의 원형 단부면(6)을 전체적으로 덮는 환형 플랜지(11)를 가진다.

Plasma jet spark plug and manufacturing method thereof

公开了一种等离子流火花塞及其制造方法。在具有凸缘状的向外突出部(37)的贵金属电极头(36)被布置在接地电极(30)的连通部(31)中的状态下，接地电极(30)的电极基部金属(33)被布置在金属壳(50)的台阶接合部(57)中，其中，在金属壳(50)中保持绝缘体(10)。在贵金属电极头(36)压靠绝缘体(10)的前端部(16)的同时，贵金属电极头(36)被接合到电极基部金属(33)，由此可以封闭接地电极(30)(电极基部金属(33))和绝缘体(10)的前端部(16)之间的间隙。因此，在腔(60)内产生的等离子体的能量不会泄漏。

Chemical fuel conditioning and activation

Methods, systems, and devices are disclosed for chemically activating a fuel for injection and ignition in a combustion engine. In one aspect, a method to initiate combustion includes transforming an interim fuel substance into constituents including radicals, the interim fuel substance formed by a chemical conversion using a fuel, in which the interim fuel substance has a lower ignition energy than that of the fuel, injecting the constituents into a combustion chamber of an engine, and providing a gaseous fluid including oxidants in the combustion chamber to react with the constituents in a combustion reaction, in which the combustion reaction of the constituents occurs at a reduced energy than that of a combustion reaction of the fuel substance.

Travelling spark ignition system and ignitor therefor

一种在一个内燃机内用于点燃一种易燃混合气的等离子点火器，或等离子源。该点火器包括了至少两个间隔开来的电极，而该电极的尺寸以及其安置的方式是可使得当一个电压通过该电极时，可形成一个向外移动的等离子体。本发明的特征在于其有效地运用轮入的电子能，以及藉助一个由传统点火器所产生的点火器等离子核大上几个次方的点火器等离子核来驱动该等离子点火器。该等离子核向外的移动以及其扩张是由作用在其上的劳伦兹力(LORENTZFORCE)，而其则是由所供给的电压以及在电极间的电流间的交互作用，且在混合物内初始生成的等离子体后，通过该混合物而生成。使用相当易燃的混合物(且该混合物的稀释则是藉由废气循环而完成)在藉由本发明的点火系统是成为可能的。如此则可获得在引擎效率的改良，以及减少氧化氮废气污染物的生成。

Patent RU2017118447A3

ВИ“? 2017118447” АЗ Дата публикации: 21.03.2019 Форма № 18 ИЗПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение ж 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2017118447/07(031886) 30.10.2015 РСТЛВ2015/058391 30.10.2015 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 2014/07931 30.10.2014 ГА Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) СИСТЕМА ЗАЖИГАНИЯ ДЛЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ И СПОСОБ УПРАВЛЕНИЯ ТАКОИ СИСТЕМОИ Заявитель: НОРТ-ВЕСТ ЮНИВЕРСИТИ, /А 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) Е02Р 17/12 (2006.01) Е02Р 3/01 (2006.01) НОГТ 13/44 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) Е02Р3/00-3/04, 17/00-17/12; 23/00-23/04; НОТТ13/00-13/44, 27/00 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): РУУРТ, Езрасепек, ]-Р]1а(Раё, К-Р1ОМ, КРКБ, РАТЕМТЗСОРЕ, Раеагсь, КОРТО, 5[РО, ОРТО 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА ...

Lean-burn method using plasma jet

본 발명은 플라즈마 제트를 이용한 희박 연소 시스템에 관한 것으로, 더욱 상세하게는 중앙전극인 축을 구비하며 고전압이 인가되는 금속 재질의 양전극(10)과, 상기 양전극(10)과 방사 방향으로 일정 간격 이격되어 형성되는 다수 개의 음전극(20)과, 상기 음전극(20)의 외주면을 감싸며 형성되며 상기 음전극(20)의 일단이 외부로 노출되도록 형성되는 비금속 재질의 유전체 장벽부(30)를 포함하는 점화 플러그의 플라즈마 제트를 이용한 희박 연소 시스템에 있어서, 상기 양전극(10)에 기설정된 전압을 인가시켜 유전체 장벽 방전(DBD, Dielectric Barrier Discharge)을 유도하여 발생된 플라즈마 제트가 상기 유전체 장벽부(30)의 표면에 따라 이동하여 발산되는 것을 특징으로 하는 플라즈마 제트를 이용한 희박 연소 시스템에 관한 것이다. The present invention relates to a lean burn system using plasma jet, and more particularly to a lean burn system using a plasma jet, and more particularly, to a lean burn system using a plasma jet, which comprises a positive electrode (10) And a dielectric barrier part (30) made of a non-metallic material and formed so as to surround an outer circumferential surface of the negative electrode (20) and one end of the negative electrode (20) In a lean burn system using a plasma jet, a predetermined voltage is applied to the positive electrode 10 to induce a dielectric barrier discharge (DBD), and the generated plasma jet is applied to the surface of the dielectric barrier 30 Wherein the plasma jet is generated by the plasma jet.

Non-equilibrium plasma discharge ignition system

Ignition device

An ignition apparatus includes: sparking coil supplying a sparking plug with a high voltage; an energy supply device supplying the sparking coil with energy; a first switch disposed therebetween; and a control device controlling the first switch's conduction. The energy supply device has a DC power supply, a resonance coil connected to the DC power supply, a sparking capacitor connected to the resonance coil, and a second switch disposed between the sparking capacitor and an earth, and charges the sparking capacitor to have a voltage value larger than that of the DC power supply in absolute value by making the resonance coil and the sparking capacitor generate an LC resonance when the second and first switches are turned ON and OFF, respectively, according to an instruction from the control device whereas supplying the sparking coil with energy when the second and first switches are operated inversely according to another instruction.

Spark plug for internal combustion engine of motor vehicle

FIELD: electricity. SUBSTANCE: spark plug (1) is essentially of prolonged shape and has the following: coaxial electrode, internal electrode with axis (D), which forms central electrode (3), and external electrode forming housing (2) enveloping central electrode (3); electrically insulating annular unit forming insulator (4) located between central electrode (3) and housing (2), which has annular shape and annular collar (5). Insulator (4) includes annular groove (8) located on collar (5), which reduces longitudinal heat conductivity of insulator and increases insulator surface area open for flame in small volume, which provides control of heat range of multi-spark plug, thus increasing the insulator temperature and providing its cleaning from soot as result of pyrolysis. EFFECT: increasing electric strength of the spark insulator. 4 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 402 127 (13) C2 (51) МПК H01T 13/46 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2008119474/07, 21.09.2006 (24) Дата начала отсчета срока действия патента: 21.09.2006 (72) Автор(ы): АНЬЕРАЙ Андре (FR), ПАРИЕНТ Марк (FR) (43) Дата публикации заявки: 27.11.2009 2 4 0 2 1 2 7 (45) Опубликовано: 20.10.2010 Бюл. № 29 (56) Список документов, цитированных в отчете о поиске: FR 2859831 А, 18.03.2005. RU 47579 U1, 27.08.2005. DE 10015916 А1, 04.10.2001. (85) Дата перевода заявки PCT на национальную фазу: 19.05.2008 2 4 0 2 1 2 7 R U (87) Публикация PCT: WO 2007/045776 (26.04.2007) C 2 C 2 (86) Заявка PCT: FR 2006/050923 (21.09.2006) Адрес для переписки: 103735, Москва, ул. Ильинка, 5/2, ООО "Союзпатент", пат.пов. Ю.В.Облову, рег.№ 905 (54) СВЕЧА ЗАЖИГАНИЯ ДЛЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ МОТОРНОГО ТРАНСПОРТНОГО СРЕДСТВА (57) Реферат: Изобретение относится к свече зажигания (1), предназначенной для двигателя внутреннего сгорания моторного транспортного средства, которая выполнена, по существу, ...

Ignition system and spark plug

점화 시스템(31)은 점화 플러그(1)와, 방전용 전원(32)과, 교류 전원(33)을 구비한다. 점화 플러그(1)는 축구멍(4)을 가지는 절연애자(2)와, 축구멍(4) 내에 설치되며 선단이 절연애자(2)의 선단보다도 선단측에 위치하는 전극(8)과, 절연애자(2)의 외주에 배치되는 금속 쉘(3)과, 금속 쉘(3)의 선단부에 고정되며, 전극(8)의 선단부와의 사이에 불꽃 방전 간극(28)을 형성하는 접지전극(27)을 구비한다. 방전용 전원(32)에서의 전압과, 교류 전원(33)에서의 교류 전력이 전극(8)을 통하여 불꽃 방전 간극(28)에 공급되며, 방전용 전원(32)에서의 전압에 의해 불꽃 방전 간극(28)에서 발생한 불꽃에, 교류 전원(33)에서의 교류 전력이 투입된다. 이것에 의해, 제조 비용의 증대를 초래할 일 없이 불꽃에 대해서 에너지를 효율적으로 투입할 수 있으며, 착화성을 비약적으로 향상시킬 수 있다. The ignition system 31 includes an ignition plug 1, a discharge power source 32, and an AC power source 33. The ignition plug 1 includes an insulating insulator 2 having a shaft yoke 4 and an electrode 8 which is provided in the shaft yoke 4 and whose tip end is located at the tip end side of the tip of the insulator 2, A metal shell 3 disposed on the outer periphery of the insulator 2 and a ground electrode 27 which is fixed to the distal end of the metal shell 3 and forms a spark discharge gap 28 between the tip of the electrode 8 ). The voltage at the discharge power source 32 and the AC power at the AC power source 33 are supplied to the spark discharge gap 28 through the electrode 8 and the voltage at the discharge power source 32 causes the spark discharge AC power from the AC power source 33 is injected into the flame generated in the gap 28. This makes it possible to efficiently apply energy to the flame without increasing the manufacturing cost, and it is possible to dramatically improve the ignition property.

DIAGNOSTIC OF BURNING ENVIRONMENT

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2016 149 306 A (51) МПК H01P 7/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2016149306, 18.05.2015 (71) Заявитель(и): ПЛАЗМА ИГНИТЕР ЭлЭлСи (US) Приоритет(ы): (30) Конвенционный приоритет: 16.05.2014 US 61/994,332 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 16.12.2016 R U (43) Дата публикации заявки: 20.06.2018 Бюл. № 17 (72) Автор(ы): ЛОУЭРИ Эндрю Д. (US), СПЕНСЕР Майкл Дж. (US), СМИТ Джеймс И. (US) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2015/176073 (19.11.2015) A Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" R U (57) Формула изобретения 1. Устройство для воспламенения горючей смеси, содержащее коаксиальный объемный резонатор, предназначенный для образования плазменного разряда; источник радиочастотной мощности, соединенный с коаксиальным объемным резонатором; источник мощности постоянного тока, соединенный с коаксиальным объемным резонатором; модуль обратной связи процесса сгорания, предназначенный для определения состояния в среде горения посредством измерения характеристики коаксиального объемного резонатора; и контроллер, выполненный с возможностью модуляции работы коаксиального объемного резонатора на основании по меньшей мере частично информации обратной связи процесса сгорания из модуля обратной связи процесса сгорания. 2. Устройство по п.1, дополнительно содержащее двигатель внутреннего сгорания и причем среда горения представляет собой цилиндр двигателя внутреннего сгорания. 3. Устройство по п.2, в котором контроллер дополнительно предназначен для модуляции работы коаксиального объемного резонатора во время одного цикла сгорания на основании по меньшей мере частично информации обратной связи процесса сгорания из модуля обратной связи процесса сгорания. Стр.: 1 A 2 0 1 6 1 4 9 3 0 6 (54) ДИАГНОСТИКА СРЕДЫ ГОРЕНИЯ 2 0 1 6 1 4 9 3 0 6 US 2015/031451 (18.05. ...

PLASMA RADIOFREQUENCY CANDLE

Bougie d'allumage (1), dite plasma à radiofréquence, destinée à équiper une chambre de combustion (2) comportant :- un culot annulaire (3) d'axe principal D ;- une électrode centrale (7) formée dans un second matériau conducteur, s'étendant le long de l'axe principal D et comportant une portion interne (8) disposée à l'intérieur dudit culot annulaire (3) et une portion externe (9) disposée à l'extérieur dudit culot annulaire (3) ;- une pièce isolante électriquement (10) de forme annulaire s'étendant au moins autour de la portion interne (8) de l'électrode centrale (7) de façon à s'interposer entre le culot (3) et l'électrode (7), cette pièce isolante (10) ne recouvrant qu'une partie de la portion externe (9) de l'électrode centrale (7) ;La pièce isolante (10) possédant un épaulement annulaire (11) occultant toute la surface circulaire extrême (6) du culot par rapport à la partie non recouverte (16) de l'électrode (7). Spark plug (1), referred to as radiofrequency plasma, intended to equip a combustion chamber (2) comprising: - an annular base (3) of main axis D - a central electrode (7) formed in a second material conductor extending along the main axis D and having an inner portion (8) disposed within said annular base (3) and an outer portion (9) disposed outside said annular base (3) an electrically insulating piece (10) of annular shape extending at least around the inner portion (8) of the central electrode (7) so as to be interposed between the base (3) and the electrode ( 7), this insulating piece (10) covering only a portion of the outer portion (9) of the central electrode (7), the insulating piece (10) having an annular shoulder (11) obscuring the entire extreme circular surface (6) the pellet with respect to the uncoated portion (16) of the electrode (7).

PREVENTION AGAINST A SHORT CIRCUIT OF THE RF CANDLE

Bougie d'allumage qui comporte une électrode centrale (10), qui comprend une extrémité supérieure (18) et une extrémité inférieure (17), une pièce isolante (11), qui comprend une partie supérieure et une partie inférieure, et qui entoure l'électrode centrale (10) de façon à ce que l'extrémité inférieure (17) de l'électrode centrale dépasse de la partie inférieure de la pièce de matière isolante, un culot (12), qui comprend une partie supérieure (36), et une partie inférieure (37) comportant un tronçon d'extrémité (14), et qui entoure la pièce de matière isolante de façon à ce que la partie inférieure de la pièce de matière isolante dépasse de la partie inférieure du culot, caractérisée en ce que la pièce de matière isolante comporte une gorge annulaire (19), sur sa périphérie extérieure, au niveau de l'extrémité inférieure du culot, et en ce que le tronçon d'extrémité (14) inférieure du culot est disposé dans la gorge. Spark plug which has a central electrode (10), which comprises an upper end (18) and a lower end (17), an insulating part (11), which comprises an upper part and a lower part, and which surrounds the central electrode (10) so that the lower end (17) of the central electrode protrudes from the lower part of the insulating material part, a base (12), which comprises an upper part (36), and a lower portion (37) having an end portion (14), and surrounding the piece of insulating material so that the lower portion of the piece of insulating material protrudes from the bottom portion of the pellet, characterized in that that the piece of insulating material comprises an annular groove (19), on its outer periphery, at the lower end of the base, and in that the lower end section (14) of the base is disposed in the groove.

PLASMA JET IGNITION CANDLE

BOUGIE D'ALLUMAGE A JET DE PLASMA. LA BOUGIE D'ALLUMAGE A JET DE PLASMA SELON LA PRESENTE INVENTION COMPREND UN ISOLATEUR ELECTRIQUE 3 FORME D'UNE CAVITE 4 DE DECHARGE ET UNE PLURALITE D'ELECTRODES COMMUNIQUANT AVEC LA CAVITE DE DECHARGE POUR FORMER, A L'INTERIEUR DE LA CAVITE DE DECHARGE, UN ECLATEUR. LA PLURALITE D'ELECTRODES COMPREND UNE ELECTRODE CENTRALE 1 RELIEE A UNE SOURCE ELECTRIQUE 20A HAUTE TENSION ET A UNE SOURCE ELECTRIQUE 1B BASSE TENSION, ET UNE ELECTRODE PERIPHERIQUE 2 QUI EST RELIEE A LA MASSE. L'ELECTRODE PERIPHERIQUE 2 ENFERME SENSIBLEMENT LA CAVITE DE DECHARGE ET COMPORTE UNE OUVERTURE 5 DE PASSAGE DE JET. LA PARTIE DE L'ELECTRODE QUI COMMUNIQUE AVEC LA CAVITE DE DECHARGE EST FORMEE PAR UNE MATIERE CHOISIE PARMI UN GROUPE COMPRENANT UNE FERRITE, UN ALLIAGE DE NICKEL CONTENANT AU MOINS UN DES METAUX SILICIUM, ALUMINIUM ET MAGNESIUM, ET UNE CERAMIQUE CONDUCTRICE DE L'ELECTRICITE.

MULTI-SPARK CANDLE WITH OPEN BEDROOM

Bougie d'allumage radiofréquence (1) de moteur à combustion interne comprenant deux électrodes (2, 3) de génération de plasma séparées par un isolateur (4) qui constituent respectivement un culot extérieur (3) entourant l'isolateur et une électrode centrale (2) logée dans un perçage central de l'isolateur, caractérisée en ce qu'elle présente une ouverture profonde (6) sur toute la circonférence du culot (3), formant une chambre d'échanges thermiques à l'intérieur du culot de la bougie (1), ouverte sur l'extérieur. An internal combustion engine radiofrequency spark plug (1) comprising two insulator-separated plasma generating electrodes (2, 3) (4) which respectively form an outer cap (3) surrounding the insulator and a center electrode ( 2) housed in a central bore of the insulator, characterized in that it has a deep opening (6) over the entire circumference of the base (3), forming a heat exchange chamber inside the base of the candle (1), open to the outside.

Long-life traveling spark ignitor and associated firing circuitry

An ignitor and associated electronics for igniting a combustible mixture in a cylinder of an internal combustion engine are described. The ignitor includes at least two spaced-apart electrodes that define a discharge gap. The space between the electrodes is substantially filled with a dielectric material. The dielectric material is spaced-apart from at least one of the electrodes to provide an air gap over which an initial voltage breakdown between the electrodes will occur. The air gap serves to vary the location of the initial breakdown and as a barrier to a short circuit between the electrodes due to carbon and/or metal deposit buildup on the dielectric material. The associated electronics provide a first potential between the electrodes that generates a plasma between the electrodes. Then the volume of the plasma is increased by the application of a second potential that creates a current through the plasma. The plasma, as well as the current passing through, is swept outward due to the interaction of Lorentz and thermal expansion forces with the plasma. Also described are relative orientations of the electrodes that lead to greater plasma formation.

Method and apparatus for operating traveling spark igniter at high pressure

고압 기관을 포함하는 내연 기관의 점화기(바람직하게는 이동 불꽃 점화기)를 동작시키는 점화 회로 및 방법. 전극 사이에 브레이크다운을 유발하여 전극 사이의 절연체의 표면 위에서 점화기에 고전류 전기 방전을 초래하고, 상기 표면에 인접한 공기와 연료의 혼합물 내에 플라즈마 핵의 형성을 초래하기에 충분한 고전압이 점화기의 전극에 인가된다. 브레이크다운에 이어, 펄스들 사이에 플라즈마를 통해 낮은 "시머" 전류를 갖는 상태로 하나 이상의 저전압 및 저전류 펄스의 시퀀스가 상기 전극에 인가되어 전체적 플라즈마 재조합을 방지하고, 각 펄스에 의해 플라즈마 핵이 전극의 자유 단부를 향해 이동할 수 있게 한다. An ignition circuit and method for operating an igniter (preferably a moving flame igniter) of an internal combustion engine comprising a high pressure engine. A high voltage is applied to the electrodes of the igniter, causing breakdown between the electrodes, causing a high current electrical discharge to the igniter on the surface of the insulator between the electrodes, and causing the formation of plasma nuclei in the mixture of air and fuel adjacent to the surface. do. Following the breakdown, a sequence of one or more low voltage and low current pulses is applied to the electrode with a low “simmer” current through the plasma between the pulses to prevent global plasma recombination, whereby each pulse Allow movement towards the free end of the electrode. 고압 기관, 점화기, 브레이크다운, 펄스의 시퀀스, 시머 전류, 플라즈마 핵 High pressure engine, igniter, breakdown, sequence of pulses, shimmer current, plasma nucleus

Method and device for improving the efficiency of internal combustion engines

"RADIOFREQUENCY SPARK TYPE IGNITION SPARK PLUG WITH INTEGRATED BREAK"

SPARK PLUG EQUIPPED WITH MEANS FOR PREVENTING SHORT CIRCUITS

Corona igniter assembly including corona enhancing insulator geometry

A corona igniter (20) includes a central electrode (34) for receiving a high radio frequency voltage from a power source and emitting a radio frequency electric field to ionize a fuel-air mixture and provide a corona discharge (22). The corona igniter (20) includes an insulator (38) extending along the central electrode (34) longitudinally past the central electrode (34) to an insulator firing end (40). The insulator firing surface (42) and the center axis A present an angle a of not greater than (90) degrees therebetween, for example the insulator firing surface may be concave. The central electrode (34) may also include a firing tip (50), in which case the insulator firing surface (42) surrounds all sides of the firing tip (50). The geometry of the insulator firing surface (42) concentrates and directs the corona discharge (22).

High voltage central electrode for radiofrequency plasma generation spark plug, has stem connected to plug`s coil, where electrode is made of nickel and coil has one end turn connected to inner end of electrode by connection system

The electrode (3) has a cylindrical body (19) including a circular section with an axis (Z), and a transversal stem connected to a coil (5) of a radiofrequency plasma generation spark plug, where the electrode is made of nickel. The stem is fixed to a high end part of the body and is made of silver. The coil has an end turn (51a) connected to a connector (12) and another end turn (51b) connected to an inner end of the electrode by a connection system (14). Independent claims are also included for the following: (1) a method for mounting an electrode on an insulator of a radiofrequency plasma generation spark plug (2) a method for fabricating an electrode.

DEVICE FOR GENERATING RADIOFREQUENCY PLASMA.

PLASMA GENERATION CANDLE

RADIO FREQUENCY IGNITION SYSTEM FOR MOTOR VEHICLE ENGINE

PLASMA GENERATION SYSTEM.

L'invention propose un système de génération de plasma(1), comprenant:-deux électrodes (103, 106);-un matériau diélectrique (100) séparant les électrodes;-un générateur de tension (102), connecté aux électrodes appliquant sélectivement une tension alternative présentant une fréquence supérieure à 1 MHz et une amplitude entre crêtes supérieure à 5kV entre les électrodes.L'invention porte aussi sur un procédé associé et permet notamment de générer aisément un plasma de volume ou un plasma ramifié. The invention provides a plasma generating system (1) comprising: two electrodes (103, 106); a dielectric material (100) separating the electrodes; a voltage generator (102) connected to the electrodes selectively applying an alternating voltage having a frequency greater than 1 MHz and an amplitude between peaks greater than 5 kV between the electrodes. The invention also relates to an associated method and in particular makes it possible to easily generate a volume plasma or a branched plasma.

IGNITION SYSTEM FOR THE INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROL SUCH SYSTEM

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2017 118 447 A (51) МПК F02P 17/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2017118447, 30.10.2015 (71) Заявитель(и): НОРТ-ВЕСТ ЮНИВЕРСИТИ (ZA) Приоритет(ы): (30) Конвенционный приоритет: 30.10.2014 ZA 2014/07931 34 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 30.05.2017 IB 2015/058391 (30.10.2015) (87) Публикация заявки PCT: WO 2016/067257 (06.05.2016) A Адрес для переписки: 109012, Москва, ул. Ильинка, 5/2, ООО "Союзпатент" R U (57) Формула изобретения 1. Cистема зажигания, содержащая: высоковольтный трансформатор, содержащий первичную обмотку, имеющую первую индуктивность L1, и вторичную обмотку, имеющую вторую индуктивность L2; первичный резонансный контур, содержащий указанную первичную обмотку и емкость С1 первичного контура, имеющий первую резонансную частоту f1; свечу зажигания, соединенную с вторичной обмоткой в качестве нагрузки при использовании для формирования вторичного резонансного контура, содержащего указанную вторичную обмотку, емкость С2 вторичного контура, которая содержит емкость вторичной обмотки и емкость, представленную нагрузкой, и сопротивление Rp нагрузки вторичного контура, которое содержит потери во вторичной обмотке и сопротивление, представленное нагрузкой, при этом сопротивление нагрузки вторичного контура при использовании и во время цикла зажигания изменяется между первым значением, которое является высоким, и вторым значением, которое является низким, причем вторичный резонансный контур имеет вторую резонансную частоту f2; схему возбуждения, соединенную с первичным контуром, для возбуждения первичной обмотки; причем магнитная связь k между первичной обмоткой и вторичной обмоткой Стр.: 1 A 2 0 1 7 1 1 8 4 4 7 (54) СИСТЕМА ЗАЖИГАНИЯ ДЛЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ И СПОСОБ УПРАВЛЕНИЯ ТАКОЙ СИСТЕМОЙ 2 0 1 7 1 1 8 4 4 7 (86) Заявка PCT: R U (43) Дата публикации заявки: 30.11.2018 Бюл. № (72) Автор(ы): КРЮГЕР ...

Igniter with magnetic activation

A method and apparatus for delivering high electrical energy levels by means of an igniter to an air-fuel mixture within an engine, is disclosed. The method and apparatus utilizes any of a variety of igniters of simple construction in an ignition system powered by an non-DC source to obtain extremely high current excursion peaks and extremely high alternating voltage levels feeding the igniters sequentially with the result of obtaining high intensity and high velocity plasma arcs of ionized matter. Such ionized matter may be subjected to a magnetic field integral with each igniter to substantially increase the energy level of the plasma, visually noting the increase in plasma intensity with audible increase in plasma velocity in an experimental set-up. The plasma generates ozone from the air component of the mixture or in the experimental set-up from the air surrounding the igniter, which ozone materially increases the fuel combustion rate and consequently improves engine operating efficiency.

Spark plug for use in combustion chamber of internal combustion engine of car, has insulating part including parts formed of dielectric permittivity material that is similar to material of organic fluid insulator

The plug (1) has a capacitive head (3) including a tubular metal base body (4). An insulating part (6) partially surrounds a center electrode (5) so as to separate the electrode from the base body. An organic fluid insulator is provided between the insulating part and the body, and between the insulating part and the electrode. The insulating part includes two parts (7, 8). One of the parts is surmounted of the other part. The parts are formed of dielectric permittivity material such as silica or ceramics, where the material is identical or similar to material of the fluid insulator.

IGNITION CANDLES FOR THE INTERNAL COMBUSTION ENGINE OF A MOTOR VEHICLE