СИСТЕМА ЗАЖИГАНИЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ И КАТУШКА ЗАЖИГАНИЯ

Изобретение относится к электрооборудованию двигателей внутреннего сгорания с принудительным воспламенением рабочей смеси, в частности к системам зажигания. Для повышения надежности работы системы зажигания и расширения функциональных возможностей катушки зажигания в системе зажигания, содержащей катушку зажигания с первичной обмоткой, подключенной к источнику питания через ключевой элемент, и вторичной обмоткой, подключенной к свече зажигания, цепь ограничения импульсных перенапряжений выполнена в виде дополнительной обмотки катушки зажигания, имеющей сильную магнитную связь с первичной обмоткой и подключенной через диод к источнику питания, а первичная и вторичная обмотки катушки размещены на разных стержнях разрезного магнитопровода. Изобретение повышает надежность работы системы зажигания. 2 с. и 4 з.п.ф-лы, 3 ил.

УСТРОЙСТВО ЗАЖИГАНИЯ ДЛЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

... 1. Устройство зажигания для двигателя внутреннего сгорания, включающее свечу зажигания, катушку зажигания со свечным наконечником, отличающееся тем, что оно содержит свечной колодец, внутри которого проходит свечной наконечник, при этом свечной колодец выполнен составным из нижней части, связанной со свечой зажигания, и верхней части, концевой участок которой, заходящий в нижнюю часть, выполнен с кольцевой канавкой, в которой размещено упругое кольцо, прилегающее к внутренней поверхности нижней части, при этом наружная поверхность нижней части свечного колодца выполнена с резьбой, предназначенной для соединения с местом установки.2. Устройство по п. 1, отличающееся тем, что нижняя часть выполнена с расточкой, ее внутренняя поверхность служит в качестве поверхности, к которой прилегает упругое кольцо, а концевой участок верхней части заходит в нижнюю часть до упора в выступ расточки.3. Устройство по п. 1, отличающееся тем, что внутренняя поверхность нижней части свечного колодца, в которую ...

СТЕРЖНЕВАЯ КАТУШКА ЗАЖИГАНИЯ

Стержневая катушка, выполненная в виде тела вращения, содержит расположенный коаксиально продольной оси удлиненный цилиндрический сердечник 1 из электротехнической стали. Концентрично вокруг сердечника 1 размещена на каркасе вторичная обмотка 2 высокого напряжения, причем каркас вторичной обмотки является также установочной деталью, в которую заключен сердечник 1. С небольшим отступом в радиальном направлении от вторичной обмотки 2 расположен второй каркас, на котором намотана первичная обмотка 3 низкого напряжения. Выводы первичной обмотки 3 соединены с контактами низковольтного разъема 4, размещенного в верхней части катушки зажигания. Выводы вторичной обмотки 2 соединены с выводами высоковольтного соединителя 5. Сердечник 1 с обмотками 2 и 3 помещен в разомкнутый магнитный экран 6. Сердечник 1 выполнен штамповкой гофр 7 из ленты, причем высота гофр сначала постепенно увеличивается до высота гофр, равной диаметру сердечника, после этого высота гофр постепенно уменьшается, причем высота ...

СИСТЕМА ЭЛЕКТРОИСКРОВОГО ЗАЖИГАНИЯ

Система электроискрового зажигания, содержащая источник тока с выпрямителем, с зарядной и сигнальной обмотками, катушку зажигания с первичной и вторичной обмотками, свечу зажигания, соединенную с вторичной обмоткой катушки зажигания, накопительный конденсатор с одной обкладкой, подключенной к первичной обмотке катушки зажигания, и другой обкладкой, соединенной с выпрямителем одной линией и с массой другой линией, имеющей силовой тиристор с управляющим электродом, соединенным с выпрямителем через анод вспомогательного тиристора с управляющим электродом, связанным с сигнальной обмоткой источника тока, отличающаяся тем, что она снабжена шунтирующей зарядную обмотку источника тока линией с последовательно соединенными резистором и стабилитроном и шунтирующим управляющие электроды тиристоров стабилитроном, при этом силовой тиристор выполнен с возможностью управления анодным током большей величины, чем на вспомогательном тиристоре.

КАТУШКА ЗАЖИГАНИЯ

Изобретение относится к двигателестроению, может быть использовано в системе электроискового зажигания в качестве катушки зажигания, снабженной датчиком, генерирующим сигнал состояния процесса горения в камере сгорания двигателя, и позволяет создать компактную конструкцию катушки зажигания, пригодную для установки непосредственно на свечу зажигания в целиндрическом канале головки блока цилиндров двигателя. Катушка зажигания содержит установленные в корпусе сердечник, первичную обмотку, вторичную обмотку, диод, конденсатор, блок низковольтных соединителей и высоковольтный вывод, первичная и вторичная обмотки расположены вокруг сердечника, причем вторичная обмотка установлена в корпусе посредством секционного диэлектрического каркаса, в этом же каркасе может размещаться и первичная обмотка, обкладки конденсатора выполнены в виде металлических изолированных друг от друга разомкнутых прослоек в диэлектрическом материала между обмотками и сердечником, прослойки могут быть образованы тонкостенными ...

КАТУШКА ЗАЖИГАНИЯ

Изобретение относится к двигателестроению и может быть использовано в системе зажигания двигателя внутреннего сгорания с встроенным устройством контроля горения топлива по величине ионной проводимости искрового промежутка свечи зажигания. Изобретение позволяет уменьшить габариты катушки зажигания и повысить точность выполнения измерительного конденсатора. Катушка зажигания включает магнитопровод, выполненный в виде стержня, первичную и вторичную обмотки, размещенные вокруг магнитопровода, низковольтный разъем, конденсатор, имеющий форму цилиндра со сквозным отверстием, диод и высоковольтный соединитель, причем ось цилиндра расположена параллельно оси магнитопровода. 2 ил.

КАТУШКА ЗАЖИГАНИЯ

Задачей предлагаемого изобретения является повышение КПД катушки зажигания, размещаемой в свечном канале ДВС . Указанная задача решается тем, что в катушке зажигания, имеющей сердечник, первичную обмотку и вторичную обмотку, сердечник выполнен наборным из магнитопроводных колец, размещенных соосно, вторичная обмотка состоит из секций, навитых на кольца сердечника и электрически последовательно соединенных между собой, а витки первичной обмотки охватывают кольца сердечника с навитыми на них секциями вторичной обмотки и заходят внутрь сердечника.

УСТРОЙСТВО КРЕПЛЕНИЯ КАТУШЕК ЗАЖИГАНИЯ

Устройство крепления катушек зажигания, содержащее корпус с элементами крепления к двигателю, крышку, закрепленную на корпусе при помощи крепежных элементов, катушки зажигания, отличающееся тем, что корпус выполнен как показано на фиг.2, поз.1, а катушки зажигания установлены в выполненных в корпусе и крышке отверстиях, расположенных соосно друг с другом, при этом по контуру каждого отверстия крышки выполнены Г-образные кольцевые выступы, взаимодействующие с кольцевым фланцем катушки зажигания.

Спиральный сердечник катушки зажигания

ПAPAMETPИЧECKИЙ ДATЧИK УГЛA ПOBOPOTA BAЛA

Катушка индуктивности для систем зажигания двигателей внутреннего сгорания

Изобретение относится к электротехнике . Цель изобретения состоит в повышении надежности катушки путем повышения точности фиксации узла соединения начал двухсекционной обмотки. Устройство содержит каркас 1, выполненный за одно целое с изолирующей перегородкой 2, в которой выполнен наклонный паз 3, направленный от наружной кромки перегородки 2 к поверхности каркаса, двухсекционную обмотку 4, размещенную на каркасе 1. Начала обмотки 4 соединены между собой и размешены на дне паза 3, в результате чего обеспечивается бесперебойность искрообразования за счет исключения пробоя на начала концов обмотки. 2 ил. о (/) X - УХ xyyy N y- ScA/VNys Г, Т V N5 00 00 О5 ю А Фи&.1 ...

Параметрический датчик угла поворота вала

Изобретение относится к датчикам углового положения вала для систем зажигания двигателей внутреннего сгорания. Целью изобретения является упрощение конструкции и повышение надежности работы. Датчик содержит генератор высокочастотного напряжения, конденсаторы переменной емкости , образуемые парой статор-ротор, четыре диода, конденсатор фильтра. Положительный эффект достигается конструктивным исполнением ротора и статора. 4 ил.

Индукционная катушка зажигания

Катушка зажигания для двигателя внутреннего сгорания

Изобретение относится к электро технике, в частности к катушкам зажигания с замкнутым магнитопроводом. Цель изобретения состоит в упрощении монтажа. Устройство содержит .изоли- , руклций корпус, в котором вокруг стержня 2 замкнутого магнитопровода расположены каркасы 3 и 4 соответственно с первичной 5 и вторичной 6 обмотками . Каркасы 3, 4 удерживаются-на кронштейне 7 с помощью следующих конструктивных элементов: штифты каркаса 3 входят в пазы кронштейна 7, в канавке кронштейна размещена лапка каркаса 3, отбортовка упругодеформируемой лапки кронштейна 7 упирается в вырез каркаса 4. Указанные конструктивные злементы позволяют осуществить предварительную сборку, что приводит к облегчению монтажа и обслуживания . 4 ил. § W S ы ...

Zündspule für Brennkraftmaschinen

ZUENDSPULENBAUGRUPPE FUER EINE BRENNKRAFTMASCHINE

VIELFACHFUNKENZUNDSYSTEM MIT VARIABLER ANZAHL VON ZUNDFUNKEN FUR EINE INNERE BRENNKRAFTMASCHINE

Anschlußanordnung für ein elektrisches Aggregat

Zündvorrichtung für eine Verbrennungskraftmaschine

Eine Zündvorrichtung für eine Verbrennungskraftmaschine weist eine Harzschicht (9) in einem Zwischenraum zwischen einem Isolator (5) und einer in dem Isolator (5) enthaltenen Wicklung auf. Die Zündvorrichtung weist einen zylindrischen Isolator und eine Harzschicht (9) auf. Der Isolator weist ein Öffnungsteil an einem Ende und ein Bodenteil an dem anderen Ende auf. Der Isolator (5) enthält eine der primären Wicklungen (31) oder der sekundären Wicklungen (32). Die Harzschicht (9) wird durch Füllen eines Harzes in den Zwischenraum zwischen dem Isolator (5) und einer der Wicklungen (31, 32) gebildet. Der Durchmesser des inneren Umfangs des Isolators (5) steigt von dem Öffnungsteil zu dem Bodenteil hin graduell an. Wenn die Harzschicht (9) von dem Öffnungsteil zu dem Bodenteil des Isolators (5) hin schrumpft, kann die Harzschicht (9) schrumpfen, ohne auf dem inneren Umfang des Isolators (5) festzuhaken.

Zündspulenvorrichtung für Verbrennungskraftmaschine

Es wird eine Zündspuleneinrichtung für eine Verbrennungskraftmaschine vorgesehen, die eine kurzzeitige elektrische Unterbrechung zu einem Zeitpunkt unterdrücken kann, wenn eine elektrische Verbindung hergestellt wird und die eine elektrische Entladung oder eine interne Entladung unterdrücken kann. Eine Zündspuleneinrichtung für eine Verbrennungskraftmaschine gemäß der vorliegenden Erfindung umfasst eine Primärspule, an welcher ein Primärstrom anliegt; einer Sekundärspule, die magnetisch mit der Primärspule gekoppelt ist und eine Zündspannung erzeugt, wenn der Primärstrom unterbrochen wird, um eine Funkenentladung zwischen einer Paar Elektroden einer Zündkerze zu erzeugen; ein Geräuschunterdrückungselement, das elektrisch zwischen der Sekundärspule und einem von dem Paar Elektroden der Zündkerze verbunden ist; und ein Gehäuse, welches aus einem Isoliermaterial hergestellt ist und eine Geräuschunterdrückungselement-Aufnehmeinheit zum Aufnehmen des Geräuschunterdrückungselements aufweist.

Zündspuleneinrichtung

In einer Zündspuleneinrichtung, die vorwiegend in einer Verbrennungskraftmaschine angeordnet ist, kann die Montierbarkeit sogar bei Zündspule verbessert werden, die ein gebogenes Führungsende aufweisen. Die Zündspuleneinrichtung vom gebogenen Typ umfasst ein Gehäuse, das eine Umwandlungsstruktur mit einer Primärspule und einer Sekundärspule darin aufweist; einen Hochspannungsturm umfassend einen Hochspannungsanschluss, der eine Hochspannung, die in der Sekundärspule erzeugt wurde, an einen unteren Abschnitt des Gehäuses überträgt; und eine Kerzenmanschette, die elektrisch und mechanisch den Hochspannungsanschluss und den Hochspannungsturm mit einer Zündkerze verbindet und die eine Manschettenbasis in der Nähe des Hochspannungsturmes und ein Manschettenführungsende in der Nähe der Zündkerze umfasst, wobei eine zentrale Achse des Hochspannungsturmes und eine zentrale Achse des Manschettenführungsendes zueinander geneigt sind, wobei eine gebogene Position in der Umgebung eines Schnittpunktes ...

Ground electrode free ignition device for internal combustion engine of motor vehicle, comprises voltage-carrying electrode surrounded by sheathing, where electrode tip overlaps sheathing

The ground electrode free ignition device (3) comprises a voltage-carrying electrode (4) surrounded by a sheathing (5), where an electrode tip (6) overlaps the sheathing. The electrode tip has a constant thickness. The electrode tip has two regions of different thickness.

Zündspule mit integrierter Elektronik

Die Erfindung betrifft eine Zündspule, insbesondere für eine Brennkraftmaschine in einem Fahrzeug, umfassend ein Gehäuse (6), eine Primärwicklung (2) und eine Sekundärwicklung (3), und ein Elektronikbauelement (10, 11), ein hochwärmeleitendes, elektrisch isolierendes, elastisches Wärmeleitelement (12), welches zwischen dem Elektronikbauelement (10, 11) und dem Gehäuse (6) angeordnet ist, und ein thermisch und elektrisch isolierendes Gießmaterial (7), welches in das Gehäuse (6) eingebracht ist, um Zwischenräume im Gehäuse (6) aufzufüllen, wobei das Wärmeleitelement (12) das Elektronikbauelement berührt.

Zündkerze-und-Spulensatz für direktes Zündsystem

Vorrichtung zum Transport und zur Erleichterung der Montage von Zündspulen für Brennkraftmotore, insbesondere von Kfz'en

VERTEILERLOSE ZUENDVORRICHTUNG FUER KRAFTMASCHINEN

Method of regulating minimum ignition energy for spark-plug IC engine with external ignition e.g. for automobile

The method involves using a measurement parameter characteristic of the action of the ignition on the combustion in the engine. The parameter is measured in the primary or secondary circuit of the ignition system. The measurement parameter indicates the uniformity of gas mixture ignition and/or the possible non-ignition of the mixture if the ignition energy is insufficient. The measurement parameter can be an electrical parameter, e.g. the ignition voltage in the primary circuit, measured for successive engine cycles.

Ignition coil plug for vehicle ignition

The ignition coil plug (11) comprises a support body (42) on one or more of its parts to stiffen the plug. The support body may be made formed by an injection (43) of plastics in which a first terminal (29) is embedded. Alternatively, the support body may be a metal bandage wrapped round the first terminal.

ZUENDSPULE FUER DIE MEHRKERZIGE UND VERTEILERLOSE ZUENDANLAGE EINER BRENNKRAFTMASCHINE

Zündeinheit bestehend aus Spule und Zündschaltung für eine Brennkraftmaschine

Zündeinheit bestehend aus Spule und Zündschaltung für eine Brennkraftmaschine

Ignition device for a combustion engine has cylindrical seal between coil housing and screw hole having a ring projection with faces at different angles to the hole surface

An ignition device for a combustion engine comprises a seal (150) between the coil housing (22) and screw hole (101) firmly holding the ignition coil (1). The seal comprises a cylindrical body at the outer circumference of the screw housing and a ring projection having faces forming different angles with the hole inner surface. Independent claims are also included for six variants of the above for mounting in a combustion engine.

ELECTRICAL INDUCTIVE/CAPACITIVE COMPONENT

... 1321439 Capacitor/inductor combinations FIAT SpA 15 July 1970 [16 July 1969] 34272/70 Headings H1M and HIT An electrical component Fig. 2, having inductive and/or capacitive properties, comprises spirally wound interleaved coils A, B with one terminal on each coil, the position of the terminal determining the value of the inductance of the device. A further embodiment has a plurality of coils arranged so that they form two interleaved sets, the members of a set being connected in parallel. A further terminal may be introduced on one of the coils to provide an inductive arrangement. The arrangement may have a ferromagnetic core. Various schematic circuit arrangements are disclosed Fig. 1 (not shown). A further embodiment has a helically wound arrangement on a former and may form part of a transformer for a car ignition system.

SPARK PLUG CONNECTOR

IGNITION COIL FOR AN INTERNAL COMBUSTION ENGINE

COMPRESSIBLE METALLIC BELLOWS

... 1377087 Welding by fusion; soldering; making bellows A MCNAMEE and J FERGUSON 21 Nov 1972 [30 Nov 1971 23 June 1972] 55443/71 and 29461/72 Headings B3A and B3R [Also in Division F1] A bellows for use in a compressor, engine or actuator is produced from a plurality of sheet metal, e.g. stainless steel annuli 1, each annulus 1 being produced from a flat annulus in which the inner and outer margins 4, 5 of the annulus are relatively displaced while being kept parallel so as to form a portion between the margins having positive AC and negative CA curvature. The curved portion may correspond to the natural curve ACB produced by the displacement of the margin or that curve modified by increasing (to the dotted position A1C1), or decreasing, Fig. 8 (not shown), the curvature of the outer positive curvature portion AC. To produce the natural curve ACB, each annulus is clamped by its outer margin between two halves of a rigid ring 7 while axially displacing a rigid cylindrical ...

Module for the ignition system of internal combustion engines

An injection-molded cast aluminum base shell, open at the bottom and having individual openings at the top through which respectively protrude a part of the ignition transformer and a part of the transistorized circuit unit, in each case for external connections, consolidates enough of the circuit components to provide an assembly that can be mounted in an accessible portion of the motor compartment of a vehicle on the vehicle body structure to facilitate comprehensive maintenance attention.

Wind of lighting for internal combustion engines.

IGNITION SYSTEM FOR INTERNAL-COMBUSTION ENGINES

ZUENDANLAGE FOR INTERNAL-COMBUSTION ENGINES

PROTECTION ARRANGEMENT FOR BATTERY POWERED IGNITION SYSTEMS OF MACHINES.

ZUENDANLAGE.

Signal generator

Firing device for a combustion engine

IGNITION SYSTEM FOR A VEHICLE-PROPELLING INTERNAL-COMBUSTION ENGINE

Ignition system for explosion engines

Ignition circuit for internal-combustion engines

IGNITION COIL

IGNITION-CONTROL SYSTEM IGNITION-CONTROL SYSTEM

BREAKERLESS IGNITION SYSTEM

IGNITION COIL

COIL ON PLUG SIGNAL DETECTION

An apparatus for measuring ignition charge signals produced by coils of coil- on-plug devices of an internal combustion engine. A signal detector comprises an insulating substrate having a first conductive planar layer on a first side and a second conductive planar layer on a second side. The first layer is coupled to a signal wire and the second layer is coupled to a ground wire. When the signal detector is held in close proximity to the coil of the coil-on-plug, ignition signals generated by the coil and passing to the plug are detected. The detected signals may be coupled to a signal analyzer for display and analysis. The amplitude of the signal that is output by the signal detector may be adjusted to different coils having different output signal strengths by modifying the ratio of the surface areas of the first layer and the second layer.

ELECTRONIC IGNITION SYSTEM FOR A GENERATOR ENGINE

A standby generator includes an alternator to produce electricity for distribution to an electrical system, and an air-cooled internal combustion engine driving the alternator. The air-cooled internal combustion engine includes one or more cylinders, one or more spark plugs each configured to initiate combustion in a corresponding cylinder, and one or more ignition coils each coupled to a respective spark plug of the one or more spark plugs to provide a voltage to the respective spark plug. The standby generator also includes a battery system electrically coupled to the one or more ignition coils to provide power thereto, and a digital ignition module wiring the battery system to each of the one or more ignition coils to control operation of the one or more spark plugs.

ENGINE IGNITION AND CONTROL SYSTEM

An engine ignition and control system for an internal combustion engine. The system includes an ignition transformer mounted directly to a spark plug and adapted to rapidly re-fire the spark plug during a combustion cycle enabling the performance of various ignition diagnostic procedures. A controller provides signals to a circuit which causes charging of the transformer for ignition and subsequent charging of the transformer for diagnostic purposes. The system also includes a diagnostic circuit, connected to the transformer, which can detect the occurrence of electrical discharges across the spark plug electrodes as a result of the diagnostic charges. The detection circuit either outputs a signal ar omits a signal to the controller which allows the controller to diagnose conditions within the combustion cylinder. Additionally, the diagnostic circuit is capable of outputting a signal which can be correlated to the load on the engine.

Dispositif auxiliaire, notamment pour l'allumage de moteurs à explosion

[...] D' [...][...] A [...][...] INTERNAL.

IGNITION COIL

IGNITION SYSTEM OF COMBUSTION ENGINE

КАТУШКА ЗАЖИГАНИЯ

ИНДИВИДУАЛЬНАЯ КАТУШКА ЗАЖИГАНИЯ

Индивидуальная катушка зажигания, которая включает выполненный из пластин магнитный сердечник, обмотки, расположенные вокруг сердечника, низковольтный соединитель, высоковольтный соединитель, причем магнитный сердечник выполнен замкнутым, а пластины магнитного сердечника изготовлены из аморфного ферромагнитного материала, например METGLAS.

КАТУШКА ЗАЖИГАНИЯ ДЛЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

Катушка зажигания для двигателей внутреннего сгорания содержит замкнутый стержневой магнитопровод, собранный из листов различной формы, набранных в пакеты и выполненных со скосом, стержни магнитопровода выполнены различной толщины, в одном из стержней магнитопровода между скосами пластин размещен постоянный магнит, первичную и вторичную обмотки. С целью упрощения конструкции катушка снабжена корпусом, охватывающим обмотки, магнитопровод образован из пластин П-образной и I-образной формы, а элементы отвода выполнены L-образной формы.

СИСТЕМА ПЛАЗМОВОГО ЗАПАЛЮВАННЯ ДЛЯ ДВИГУНА ВНУТРІШНЬОГО ЗГОРЯННЯ

Система плазмового запалювання для двигуна внутрішнього згоряння належить до автомобілебудування, до конструювання двигунів, а саме контактних і безконтактних високоефективних електронних систем запалювання і може бути використана для надійного запалення економічно та екологічно доцільних перезбіднених паливних сумішей.

Система зажигания

Использование: электрооборудование автомобилей, в частности устройства системы зажигания. Задача: повышение энергетической эффективности классической электромеханической системы зажигания. Сущность полезной модели: система зажигания содержит тиристор, блок управления тиристором, контактный прерыватель и катушку зажигания, соединенную с распределителем высокого напряжения к свечам зажигания. Тиристор установлен в силовой части схемы, а контактный прерыватель соединен с блоком управления, соединенным с управляющим электродом тиристора. Конденсатор и первичная обмотка катушки соединены с образованием параллельного колебательного контура для создания искровых разрядов в прямом и обратном направлениях. 1 н.п.ф-лы, 1 ил.

Cushion block for overhead ignition coil

Magnetic pulse type igniting signal generator

Automatic assembly and spraying device for automobile ignition coil sheath

Ignition device of engine

Protective jacket for automobile ignition coil iron cores and sleeving connection technique of protective jacket and iron cores

The invention discloses a protective jacket for automobile ignition coil iron cores. The protective jacket comprises a protective jacket body which is of a C-shaped structure, the protective jacket body is made of soft elastic materials, inner cavities used for installing the iron cores are formed in the protective jacket body, the protective jacket body comprises a middle part and side edge parts which are integrally connected to the two ends of the middle part, and multiple grooves used for being poured with epoxy resin are formed in the outer surface of the middle part and the outer surfaces of the side edge parts. The invention further discloses a sleeving connection technique of the protective jacket and the iron cores. By means of the protective jacket for the automobile ignition coil iron cores and the sleeving connection technique of the protective jacket and the iron cores, the problems that due to the fact that gaps between the iron cores and a shell is prone to being blocked ...

Motorcycle digital igniter

Ignition coil bracket

An igniting loop for gasoline engine

Igniter of vehicle

Blower unit for powered implement such as chain saw or brush cutter has housing with guide surface of aerodynamic profile and branch channel for motor intake

Dans ce dispositif comportant un outil de travail entraîné par un moteur à combustion interne et comportant une soufflante radiale comprenant un rotor de soufflante et un carter de soufflante (6) de forme spiralée et comprenant une ouverture (3) de prélèvement d'un courant d'air de combustion pour le moteur dans la zone d'un courant d'air entraîné (2), une rampe de guidage aérodynamique (7) qui s'étend en direction axiale est prévue radialement à l'extérieur du rotor de soufflante, l'ouverture de prélèvement (3) étant disposée en aval de la rampe. Application notamment aux scies à chaîne et aux débroussailleuses.

Spark ignition systems for internal combustion engines

DISPOSITIF DE STOCKAGE ET DE TRANSFERT D'ENERGIE ELECTRIQUE

DISPOSITIF DE STOCKAGE ET DE TRANSFERT D'ENERGIE ELECTRIQUE. LE DISPOSITIF COMPORTE UN CIRCUIT D'INDUCTION EN FEUILLES DE COURANT COMPORTANT AU MOINS DES PREMIER S1 ET DES SECOND S2 MOYENS CONDUCTEURS EN FEUILLE SEPARES ET ISOLES L'UN DE L'AUTRE PAR DES MOYENS DIELECTRIQUES DS1, DS2 POUR LA CREATION ENTRE EUX D'UN COUPLAGE CAPACITIF ET INDUCTIF, LEDIT CIRCUIT INDUCTEUR DE COURANT EN FEUILLE ETANT AGENCE POUR RECEVOIR UNE CHARGE ELECTRIQUE EN REPONSE A UN ECOULEMENT D'ELECTRONS PROVOQUE DANS LESDITS MOYENS EN FEUILLE, POUR STOCKER LA CHARGE ELECTRIQUE AINSI RECUE ET POUR DECHARGER CELLE-CI A L'AIDE D'ECOULEMENT D'ELECTRONS DANS LESDITS MOYENS EN FEUILLE, D'UN ECOULEMENT D'ELECTRONS, AU MOINS PENDANT LA DECHARGE, ETANT SUFFISANT POUR PRODUIRE UN CHAMP MAGNETIQUE RESULTANT.

Method and ignition circuit for an internal combustion engine.

IGNITION COIL HAVING CLOSED CIRCUIT

Engine inductive ignition circuit - uses numeric circuits, load and RPM sensors, to control coil current duration

INSTALLATION Of LIGHTING FOR INTERNAL COMBUSTION ENGINES

OPTOELECTRONIC DEVICE Of LIGHTING FOR INTERNAL COMBUSTION ENGINE

DEVICE HAS COMMUTATION OF FLOW FOR the PRODUCTION AND the STRESS DISTRIBUTION Of LIGHTING Of an INTERNAL COMBUSTION ENGINE

IGNITION DISTRIBUTOR FOR INTERNAL COMBUSTION ENGINE

INSTALLATION Of LIGHTING FOR an INTERNAL COMBUSTION ENGINE

BOBINE D'ALLUMAGE POUR MOTEUR A COMBUSTION INTERNE

CETTE BOBINE DESTINEE PLUS PARTICULIEREMENT AUX VEHICULES AUTOMOBILES EST CARACTERISEE EN CE QU'UN SUPPORT 5 COMPORTE, OBTENUS DE MOULAGE, DES MOYENS 9, 10, 14, 14A DE MAINTIEN ET DE POSITIONNEMENT DES BOBINAGES PRIMAIRE ET SECONDAIRE DE LA BOBINE QUI COOPERENT AVEC LES MOYENS COMPLEMENTAIRES RESPECTIFS SUR CHAQUE SUPPORT DE BOBINAGE, AINSI QUE DES DIFFERENTES CONNEXIONS ELECTRIQUES 6, 7 BASSE ET HAUTE TENSION.

CIRCUIT Of LIGHTING FOR INTERNAL COMBUSTION ENGINE AND ITS COMPONENTS

TRANSISTORIZED IGNITION SYSTEM FOR INTERNAL COMBUSTION ENGINES

DISPOSITIF A COMMUTATION DE FLUX POUR LA PRODUCTION ET LA DISTRIBUTION DE LA TENSION D'ALLUMAGE D'UN MOTEUR A COMBUSTION INTERNE

DISPOSITIF STATIQUE POUR LA PRODUCTION ET LA DISTRIBUTION D'UN COURANT HAUTE TENTION. CE DISPOSITIF COMPORTE DES BOBINAGES PRIMAIRES ET DES BOBINAGES SECONDAIRES ET IL EST CARACTERISE PAR LE FAIT QUE LE COUPLAGE ENTRE LES BOBINAGES PRIMAIRES(S) ET SECONDAIRE(S) EST REALISE AU MOYEN D'UN CIRCUIT MAGNETIQUE UNIQUE COMPORTANT AU MOINS DEUX CHEMINS DE FLUX, CHAQUE CHEMIN DE FLUX ETANT ASSOCIE A AU MOINS UN BOBINAGE PRIMAIRE, A AU MOINS UN BOBINAGE SECONDAIRE ET A AU MOINS UN MOYEN SUSCEPTIBLE DE LIMITER OU ANNULER LE FLUX DANS LEDIT CHEMIN DE FLUX. UTILISABLE POUR LA DISTRIBUTION DU COURANT D'ALLUMAGE D'UN MOTEUR A COMBUSTION INTERNE.

METHOD FOR SHUTTING OFF the QUIESCENT CURRENT IN an INSTALLATION Of LIGHTING OF INTERNAL COMBUSTION ENGINE

SPARK IGNITION SYSTEMS FOR INTERNAL COMBUSTION ENGINES

INSTALLATION Of LIGHTING FOR INTERNAL COMBUSTION ENGINES

Electronic ignition for internal combustion engine - has zener rr diode installed in input transistor circuit in order to limit output circuit current

UNIT OF DISTRIBUTION Of LIGHTING FOR INTERNAL COMBUSTION ENGINES, IN PARTICULAR FOR MOTOR VEHICLES

METHOD FOR CONTROLLING THE PRIMARY IGNITION CURRENT OF AN INTERNAL COMBUSTION ENGINE WITH CONTROLLED IGNITION

CONTROL CIRCUIT Of LIGHTING

SPARK IGNITION SYSTEMS

IGNITION SYSTEM FOR INTERNAL COMBUSTION ENGINES

Method for controlling ignition of internal combustion engine of motor vehicle, involves monitoring occurrence of first controlling signal on ignition spark plug, and generating second signal at spark plug when first signal is absent

Procédé de commande de l'allumage d'un moteur à combustion interne, comprenant les étapes suivantes : - surveillance de la survenue d'un premier signal commandant l'allumage au niveau d'une première bougie, - en cas d'absence de ce premier signal, génération d'un deuxième signal de commande de l'allumage au niveau de la première bougie et de substitution au premier signal.

Automotive IC engine electronic ignition system - has signal shapers with two complementary inputs and transistors, each with multiple collector (NL 6.8.79)

Ignition coil for internal combustion engine

An ignition coil for an internal combustion engine is provided which includes a body with a metallic hollow cylinder and a high-voltage portion joined to an end of the cylinder. The hollow cylinder has a primary winding and a secondary winding disposed therein. The high-voltage portion is made of a resin material and includes an inner cylinder and an outer cylinder disposed outside the inner cylinder through a gap. The inner cylinder has disposed therein a conductive elastic member which establishes an electric connection to a spark plug. A resinous insulator is disposed in a gap between the first and second cylinders. The resinous insulator is higher in insulation strength than the resin material of the high-voltage portion, thereby improving the degree of electric insulation between the metallic hollow cylinder and the conductive elastic member.

IGNITION COIL HAVING INTEGRATED ELECTRONICS

An ignition coil, in particular for an internal combustion engine in a vehicle, is described. The ignition coil includes a housing, a primary winding and a secondary winding, and an electronic component, a highly heat-conducting, electrically insulating, elastic heat-conducting element, which is situated between the electronic component and the housing, and a thermally and electrically insulating casting compound, which is introduced into the housing in order to fill interspaces in the housing, the heat-conducting element touching the electronic component. 110-. (canceled)11. An ignition coil for an internal combustion engine in a vehicle , comprising:a housing;a primary winding and a secondary winding;an electronic component;a highly heat-conducting, electrically insulating, elastic heat-conducting component situated between the electronic component and the housing, the heat-conducting element touching the electronic component; anda thermally and electrically insulating casting compound, which fills interspaces inside the housing.12. The ignition coil as recited in claim 11 , wherein the heat-conducting element includes one of: i) silicon and a heat-conductive ceramic material claim 11 , or ii) an elastic plastic material and a heat-conductive claim 11 , electrically insulating filler material.13. The ignition coil as recited in claim 11 , wherein the electronic component is a circuit board carrying at least one electronic component claim 11 , and the heat-conducting element touches at least one of the circuit board and the electronic component.14. The ignition coil as recited in claim 11 , wherein the heat-conducting element is a flexible foil.15. The ignition coil as recited in claim 11 , wherein the heat-conducting element is fixed in place on the electronic component using an adhesive connection.16. The ignition coil as recited in claim 11 , wherein the heat-conducting element contacts an inside of the housing.17. The ignition coil as recited in claim 13 , ...

SPARK PLUG FOR INTERNAL COMBUSTION ENGINE AND IGNITION SYSTEM HAVING SPARK PLUG

A spark plug for an internal combustion engine has a cylindrical insulator, a center electrode held inside of the insulator, and, a terminal portion held inside of the insulator and electrically connected to the center electrode. The insulator has a insertion portion arranged closer to the base end side than the housing is, the insertion portion being inserted into a cylindrical plug cap. The insertion portion has a non-fit portion formed at the base end of the insulator, and, a fit portion formed to the head end side of the non-fit portion, an outer diameter of the non-fit portion being equal to or smaller than an inner diameter of the plug cap, the fit portion being fitted in the inner periphery surface of the plug cap. 1. A spark plug for an internal combustion engine , extending in an axial direction , having a base end and a head end in the axial direction , and comprising:a cylindrical housing;a cylindrical insulator held inside of the housing, and projected further toward a base end side than the housing is;a center electrode held inside of the insulator, and projected further toward a head end side than the insulator is;a ground electrode forming a spark discharge gap between the center electrode and the ground electrode; anda terminal portion held inside of the insulator, projected further toward the base end side than the insulator is, and electrically connected to the center electrode,wherein:the insulator has a insertion portion arranged closer to the base end side than the housing is, the insertion portion being inserted into a cylindrical plug cap; andthe insertion portion has a non-fit portion formed at the base end of the insulator, and, a fit portion formed to the head end side of the non-fit portion, an outer diameter of the non-fit portion being equal to or smaller than an inner diameter of the plug cap, the fit portion being fitted in the inner periphery surface of the plug cap.2. The spark plug according to claim 1 , wherein claim 1 ,at least a ...

COIL SYSTEM AND HOUSING

A coil system for a burner management system and coil housing is provided having recessed terminals and a housing lid to cover the terminal recesses for reducing exposure of coil system terminals to air and unwanted contacts. 1. A coil housing for housing a transformer coil system for a combustion management system comprising:A primary housing wherein the primary housing includes three or more terminal access ports disposed therein for accessing coil terminals, the three or more terminal access ports configured to permit access to a terminal recessed below a terminal access port; andA housing lid removably attachable to the primary housing;Wherein a plurality of the terminal access ports will be covered by the housing lid when the housing lid is disposed on the primary housing in a closed position.2. The coil housing of claim 1 , wherein the number of terminal access ports disposed in the primary housing is four.3. The coil housing of claim 1 , wherein the primary housing further includes at least one wire port disposed therein configured to permit access by an external wire to a coil terminal.4. The coil housing of claim 1 , wherein the housing lid is rotatably attached to the primary housing using one or more hinges.5. The coil housing of claim 1 , wherein the housing lid and the primary housing are comprised of a non-conductive material.6. The coil housing of claim 5 , wherein the non-conductive material is plastic.7. The coil housing of claim 5 , wherein the non-conductive material is epoxy.8. A coil system for initiating combustion in a combustion management system comprising:A primary housing wherein three or more terminal access ports are disposed in the primary housing;A housing lid removably attachable to the primary housing wherein the housing lid may be configured to cover a plurality of the three or more terminal access ports;A transformer coil disposed inside the primary housing; andThree or more coil terminals disposed in the primary housing ...

Ignition Coil for Internal Combustion Engine

An object of the present invention is to provide an ignition coil for use in an internal combustion engine, offering improved water drainage performance, while achieving high waterproof performance with controlled entry of water in a plug hole. A high-voltage generating section that generates a high voltage is housed inside a coil case . A plug hole seal closes an opening in a plug hole in which an ignition plug is mounted. The ignition coil further includes a space portion placed on an outer side portion of the high-voltage generating section and an air path for venting air between the space portion and the plug hole . The space portion has an open lower surface (an entirely open surface facilitates demolding). 1. An ignition coil for an internal combustion engine , the ignition coil comprising:a coil section for generating a high voltage;a coil case for housing therein the coil section;a plug hole seal for closing an opening in a plug hole in which an ignition plug is disposed;a space portion divided by an outer peripheral wall disposed on an outer side portion of the coil case; andan air path for venting air between the space portion and the plug hole, whereinthe space portion is connected, at a first end portion thereof on a side opposite to a side of a second end portion thereof on which the ignition plug is connected, via a small hole to a first end of the air path having a second end communicating with the plug hole, andthe second end portion of the space portion on the side on which the ignition plug is connected is open to an atmosphere through an opening having a path area larger than a path area of the small hole.2. The ignition coil for an internal combustion engine according to claim 1 , wherein the space portion and the air path are formed integrally with the coil case claim 1 , the ignition coil further comprising:a sealing member for sealing the first end portion of the space portion on the side opposite to the side of the second end portion on which ...

SEMICONDUCTOR DEVICE FOR INTERNAL COMBUSTION ENGINE IGNITION

A semiconductor device for internal combustion engine ignition includes: a power semiconductor switching device that switches ON and OFF in accordance with a control signal provided by an external control circuit for causing a spark plug to produce sparks via an ignition coil and an external power source; an auxiliary voltage circuit that generates and applies an auxiliary voltage responsive to a collector voltage of the power semiconductor switching device to the gate of the power semiconductor switching device; and a constant current circuit that regulates current from the auxiliary voltage circuit to the gate of the power semiconductor switching device when a high-voltage surge originating from the external power source is applied to the auxiliary voltage circuit via a primary winding of the ignition coil. 1. A semiconductor device for internal combustion engine ignition , comprising:a power semiconductor switching device that switches ON and OFF in accordance with a control signal provided by an external control circuit for causing a spark plug to produce sparks, the power semiconductor switching device including an collector to which a primary winding of an ignition coil is to be connected and a gate to which the control signal is to be inputted;an auxiliary voltage circuit that generates and applies an auxiliary voltage responsive to a collector voltage of the power semiconductor switching device to the gate of the power semiconductor switching device; anda constant current circuit that is interposed between the auxiliary voltage circuit and the gate of the power semiconductor switching device and that limits current flowing from the auxiliary voltage circuit to the gate of the power semiconductor switching device so as to regulate the current even if a high-voltage surge originating from an external power source connected to the primary winding is applied to the auxiliary voltage circuit via the primary winding.2. The semiconductor device according to claim 1 ...

METHOD FOR OPERATING AN IGNITION DEVICE FOR AN INTERNAL COMBUSTION ENGINE

An ignition device for an internal combustion engine has an ignition coil disposed as a transformer, a spark plug connected to the secondary winding of the ignition coil, an actuatable switching element connected in series with the primary winding of the ignition coil, and a control unit connected to the primary winding and to the control input of the switching element. After charging the ignition coil, building up an ignition spark through non-conductive switching of the switching element, and after renewed conductive switching of the switching element for operating the ignition coil in transformer operation, the supply voltage of the control unit is detected and if a pre-determined value, representing the presence of a surface gap, is exceeded, the switching element is once more switched non-conductive. 14-. (canceled)5. A method of operating an ignition device for an internal combustion engine , the ignition device having an ignition coil formed as a transformer with a primary winding and a secondary winding , a spark plug connected to the secondary winding of the ignition coil , a drivable switching element connected in series with the primary winding of the ignition coil , and a control unit connected to the primary winding of the ignition coil and to a control input of the switching element , the method comprising:providing with the control unit a supply voltage for the ignition coil and a drive signal for the switching element depending on a current through the primary winding and a current through the secondary winding of the ignition coil and on a primary voltage between a node connecting the primary winding of the ignition coil and the switching element and a negative connection of the supply voltage;alternately switching-on and switching-off the switching element depending on whether threshold values for the primary voltage or a voltage derived therefrom are undershot or exceeded, to thereby transfer energy into an ignition spark of the spark plug through ...

IGNITION DEVICE

An ignition device capable of more reliably protecting a primary winding of an ignition coil from high temperature is provided. The ignition device includes an ignition coil, a switching element, a temperature sensor, and a thermal cutout circuit. A primary winding of the ignition coil is connected to a DC power supply and the switching element. The temperature sensor is provided to measure the temperature of the switching element. The thermal cutout circuit forcibly turns off the switching element when the temperature of the switching element becomes higher than a predetermined forcible turn-off temperature Toff. The thermal cutout circuit is configured to lower the forcible turn-off temperature Toff when the power supply voltage Vb of the DC power supply decreases. 1. An ignition device for igniting a spark plug , comprising:an ignition coil having a primary winding connected to a DC power supply, and a secondary winding connected to the spark plug;a switching element connected to an end of the primary winding that is opposite from an end connected to the DC power supply;a temperature sensor for measuring the temperature of the switching element; anda thermal cutout circuit configured to forcibly turn off the switching element when the temperature of the switching element becomes higher than a predetermined forcible turn-off temperature,wherein the thermal cutout circuit is further configured to lower the forcible turn-off temperature when a power supply voltage of the DC power supply decreases.2. The ignition device according to claim 1 , wherein the temperature sensor is a diode claim 1 , and the thermal cutout circuit includes a comparator configured to compare a forward voltage of the diode with a reference voltage claim 1 , and forcibly turn off the switching element when the forward voltage is lower than the reference voltage claim 1 , and a reference voltage shift circuit configured to lower the forcible turn-off temperature by raising the reference voltage ...

IGNITION COIL

Obtain an ignition coil in which a magnet is provided at a magnet holding portion which is formed between a first side iron core and a second side iron core, and intervening components which are configured by using a non-magnetic material, are included at facing portions which are provided at end portions of separated surfaces of the first side iron core and separated surfaces of the second side iron core, in a state where the magnet holding portion is formed by using the first side iron core and the second side iron core, and are faced at a surface which is vertical with respect to an axis direction of the side iron cores, and the intervening components have a thickness which is less than a distance between the separated surfaces of the first side iron core and the separated surfaces of the second side iron core. 15.-. (canceled)6. An ignition coil comprising:a center iron core around which a primary coil and a secondary coil, which is coaxially provided at a circumference of the primary coil, are wound; andside iron cores which surround a part of a circumference of the secondary coil so as to be arranged, and form a closed magnetic passage with the center iron core; in a state where the side iron cores are composed of a first side iron core and a second side iron core, in which portions, which are faced to a portion in an axis direction of the center iron core in a state where the primary coil and the secondary coil are sandwiched, are separated in an oblique direction with respect to an axis direction of the side iron cores, and a magnet is provided at a magnet holding portion which is formed between the first side iron core and the second side iron core, which are separated; whereinfacing portions, which are provided at end portions of separated surfaces of the first side iron core and at end portions of separated surfaces of the second side iron core, in a state where the magnet holding portion is formed by using the first side iron core and the second side ...

IGNITION COIL AND METHOD OF ASSEMBLY

An ignition coil includes a magnetically-permeable core; a primary winding disposed outward of the core; a secondary winding disposed outward of the primary winding, inductively coupled to the primary winding, and terminating at one end thereof in a low-voltage end and terminates at another end thereof in a high-voltage which is electrically connected directly to a terminal through an electrically conductive polymer; and a case defining an interior having an interior surface such that the core, the primary winding, and the secondary winding are received within the interior of the case such that the at least one of the low-voltage end and the high-voltage end, the terminal, and the electrically conductive polymer are disposed within the recess and such that the electrically conductive polymer is in direct contact with the interior surface within the recess. 1. An ignition coil for delivering a spark-generating current to a spark plug; said ignition coil comprising:a magnetically-permeable core;a primary winding disposed outward of said core;a secondary winding disposed outward of said primary winding and inductively coupled to said primary winding, said secondary winding terminating at one end thereof in a low-voltage end and terminating at another end thereof in a high-voltage end, wherein at least one of said low-voltage end of said secondary winding and said high-voltage end of said secondary winding is electrically connected directly to a terminal through an electrically conductive polymer; anda case defining an interior having an interior surface such that said core, said primary winding, and said secondary winding are received within said interior of said case, said interior surface defining a recess therein such that said at least one of said low-voltage end of said secondary winding and said high-voltage end of said secondary winding, said terminal, and said electrically conductive polymer are disposed within said recess and such that said electrically ...

IGNITION COIL FOR INTERNAL COMBUSTION ENGINE

An ignition coil for internal combustion engines is provided which includes a primary and a secondary coils magnetically coupled with each other, a case, a resistor, and a resinous filler. The case includes a case body in which the primary and secondary coils are disposed and a tubular high-voltage tower extending from the case body toward a head of the ignition coil. The resistor is press-fitted into the high-voltage tower and electrically connected to the secondary coil. The resinous filler is packed in the case body to hermetically seal the primary coil and the secondary coil. The resistor includes a resinous coating which covers an outer circumference of the resistor and is press-fit in the high-voltage tower through the resinous coating. This facilitates hermetically sealing a gap between the resistor body and the case and ensures the stability of the sealing. 1. An ignition coil for an internal combustion engine comprising:a primary coil and a secondary coil which are magnetically coupled together;a case which includes a case body in which the primary coil and the secondary coil are disposed and a high-voltage tower which is of a cylindrical shape and extends from the case body to a front end of the ignition coil;a resistor which is fit in the high-voltage tower and electrically connected to the secondary coil; anda resinous filler which is packed in the case body to hermetically seal the primary coil and the secondary coil,wherein the resistor includes a resinous coating which covers an outer circumference of the resistor, the resistor being fit in the high-voltage tower through the resinous coating.2. An ignition coil as set forth in claim 1 , wherein the resistor includes a first portion and a second portion claim 1 , the first portion being fit in the high-voltage tower claim 1 , the second portion being closer to a base end of the ignition coil than the first portion is and embedded in the resinous filler.3. An ignition coil as set forth in claim as set ...

Ignition coil for internal combustion engine

An ignition coil for an internal combustion engine is equipped with an assembly of a connector casing and a coil body. The coil body includes a primary winding wound around a primary spool. The connector casing has terminals each of which is equipped with a conductor fastener. The conductor fastener has a slit in which one of ends of the primary winding is fit to make an electric connection between the terminal and the primary winding. The primary spool has conductor guides and a backup support to establish alignment of each of the ends of the primary winding with one of the conductor fasteners and also to facilitate insertion of each of the ends of the primary winding into one of the conductor fasteners when the coil body is fitted into the connector casing, thereby ensuring the stability of electric connection between the primary winding and the terminal.

Ignition coil for internal combustion engine

An ignition coil for an, internal combustion engine includes an annular elastic seal which is tightly attached to a high-voltage tower and a plug installed in the high-voltage tower to be conductible with a spark plug. The elastic seal hermetically seals a gap between the high-voltage tower and the plug and also functions as a buffer to absorb stress, as exerted from the plug on a case of the ignition coil. This enables the case to be reduced in size as a whole without having to partially increase the wall thickness of the case to ensure a required degree of stiffness of the case and also results in improved degree of hermetic sealing between the plug and the high-voltage tower.

IGNITION COIL

An ignition coil includes a magnetically-permeable core, a primary winding disposed outward of the core, and a secondary winding disposed outward of the primary winding and inductively coupled to the primary winding. The secondary winding includes a left secondary winding section wound clockwise around the primary winding and a right winding section wound counterclockwise around the primary winding. The left secondary winding section has i) a first left winding end distal from the right winding section and ii) a second left winding end that is proximal to the right winding section. The right secondary winding section has i) a first right winding end distal from the left winding section and ii) a second right winding end that is proximal to the left winding section. The second left winding end and the second right winding end are connected to a terminal. 1. An ignition coil for delivering a spark-generating current to a spark plug; said ignition coil comprising:a magnetically-permeable core;a primary winding disposed outward of said core; anda secondary winding disposed outward of said primary winding and inductively coupled to said primary winding, said secondary winding having a left secondary winding section wound clockwise around said primary winding and a right secondary winding section wound counterclockwise around said primary winding;wherein said left secondary winding section has i) a first left winding end distal from said right secondary winding section and ii) a second left winding end that is proximal to said right secondary winding section;wherein said right secondary winding section has i) a first right winding end distal from said left secondary winding section and ii) a second right winding end that is proximal to said left secondary winding section; andwherein said second left winding end and said second right winding end are connected to a terminal which delivers said spark-generating current to said spark plug.2. An ignition coil as in wherein ...

Spark plug

A spark plug has a housing of a cylindrical shape and an insulator supported to an inside of the housing. A channel part is formed at a distal end side of the housing. The channel part is open so that the inside of the housing communicates with an outside of the housing through the channel part. The channel part has a channel bottom having a tapered shape oblique relative to a plug central axis. An overall channel bottom is arranged in the housing closer to a proximal end side than to the distal end side of the housing.

IGNITION COIL FOR INTERNAL COMBUSTION ENGINE

An ignition coil for an internal combustion engine includes: a center core arranged on an inner side of a primary coil and an inner side of a secondary coil; a side core arranged on an outer side of the primary coil and an outer side of the secondary coil, and combined with the center core to form a closed magnetic circuit; one or a plurality of gaps provided between the center core and the side core, or in the side core; and a magnet arranged in each of the one or a plurality of gaps, in which a sum of cross-sectional areas of the respective magnets is set to be three times or more and less than seven times of a cross-sectional area of the center core. 110-. (canceled)11. An ignition coil for an internal combustion engine , comprising:a center core arranged on an inner side of a primary coil and an inner side of a secondary coil;a side core arranged on an outer side of the primary coil and an outer side of the secondary coil, and combined with the center core to form a closed magnetic circuit;one or a plurality of gaps provided between the center core and the side core, or in the side core; anda magnet arranged in each of the one or a plurality of gaps,wherein a sum of cross-sectional areas of the respective magnets is set to be three times or more and less than seven times of a cross-sectional area of the center core.12. The ignition coil for an internal combustion engine according to claim 11 , wherein each of the one or a plurality of gaps has a cross-sectional area equal to or larger than the cross-sectional area of the magnet.13. The ignition coil for an internal combustion engine according to claim 11 , wherein the one or a plurality of gaps and the magnet are arranged in the side core.14. The ignition coil for an internal combustion engine according to claim 12 , wherein the one or a plurality of gaps and the magnet are arranged in the side core.15. The ignition coil for an internal combustion engine according to claim 13 , wherein the side core has a height ...

IGNITION COIL

Described is an ignition coil for an internal combustion engine having a housing with a plug connector, wherein the plug connector has an elastomeric cap slid onto a tubular housing section that surrounds a terminal contact. This disclosure provides that the terminal contact is surrounded by a circumferential slot, in which an inner edge of the cap sits. 1. An ignition coil for an internal combustion engine , comprising:a housing having a plug connector;the plug connector comprising an elastomeric cap disposed on a tubular housing section that surrounds a terminal contact;a circumferential slot surrounding the terminal contact; andan inner rim of the cap disposed in the circumferential slot.2. The ignition coil according to claim 1 , wherein the terminal contact sits in an electrically insulating sleeve and the circumferential slot is formed between the electrically insulating sleeve and an inner surface of the tubular housing section.3. The ignition coil according to claim 2 , wherein an interference resistor is arranged in the sleeve.4. The ignition coil according to claim 2 , wherein the sleeve has a bead claim 2 , which abuts against the tubular housing section on the inside.5. The ignition coil according to claim 2 , wherein the sleeve is press-fitted into the tubular housing section.6. The ignition coil according to claim 2 , wherein the sleeve ends flush with the terminal contact or projects over and beyond it.7. The ignition coil according to claim 1 , wherein the cap fills the circumferential slot essentially completely.8. The ignition coil according to claim 1 , wherein the inner edge of the cap touches a floor of the circumferential slot.9. The ignition coil according to claim 1 , wherein the exterior side of the tubular housing section has a continuous projection engaged in a circumferential groove of the cap.10. The ignition coil according to claim 9 , wherein the continuous projection is a latching hook. This application claims priority to DE 10 2016 ...

IGNITION COIL

Described is an ignition coil comprising a housing, in which a transformer is arranged, and a plug connector, wherein the plug connector has a high voltage contact, which is connected to the secondary side of the transformer by means of a wire, which resiliently presses against an electrical contact surface. The contact surface is concavely shaped. 1. An ignition coil , comprising:a housing in which a transformer is arranged; anda plug connector;wherein the plug connector comprises a high voltage contact connected to a secondary side of the transformer by a wire resiliently pressing against an electrical contact surface; andwherein the electrical contact surface is concavely shaped.2. The ignition coil according to claim 1 , wherein an end surface of the wire presses against the electrical contact surface.3. The ignition coil according to claim 1 , wherein the wire presses a rounded end face against the electrical contact surface.4. The ignition coil according to claim 1 , wherein the high-voltage contact is a rod claim 1 , which provides the electrical contact surface on its end facing the transformer.5. The ignition coil according to claim 4 , wherein the contact surface is provided as a cap placed on the rod.6. The ignition coil according to claim 5 , wherein the cap has an annular bead claim 5 , which rises in the longitudinal direction of the rod and surrounds one end of the wire piece.7. The ignition coil according to claim 4 , wherein the rod contains an interference resistor.8. The ignition coil according to claim 1 , wherein the wire is a lead of a diode arranged between the high-voltage contact and secondary side of the transformer.9. The ignition coil according to claim 1 , wherein the wire is bent in the shape of an L claim 1 , so that an end section of the wire pressing against the contact surface forms an acute angle with the plugging direction of the plug connector of less than 30°.10. The ignition coil according to claim 1 , wherein the electrical ...

IGNITION APPARATUS FOR AN INTERNAL-COMBUSTION ENGINE

An ignition apparatus for an internal-combustion engine includes a main ignition CDI circuit that has a main ignition boosting circuit boosting battery voltage and a main ignition capacitor storing electric charge boosted by the main ignition boosting circuit, and that releases the electric charge stored in the main ignition capacitor to a primary coil of an ignition coil to make an ignition plug generate spark discharge, and an energy input circuit that has an energy input boosting circuit boosting battery voltage and an energy input capacitor storing electric charge boosted by the energy input boosting circuit, and that releases the electric charge stored in the energy input capacitor to the primary coil, during a spark discharge started by operation of the main ignition CDI circuit, to make a secondary current flow in the same direction and to a secondary coil of the ignition coil, thereby making spark discharge continue which is started by the operation of the main ignition CDI circuit. 1. An ignition apparatus for an internal-combustion engine , the ignition apparatus comprising:a main ignition CDI circuit that has a main ignition boosting circuit boosting battery voltage and a main ignition capacitor storing electric charge boosted by the main ignition boosting circuit, and that releases the electric charge stored in the main ignition capacitor to a primary coil of an ignition coil to make an ignition plug generate spark discharge; andan energy input circuit that has an energy input boosting circuit boosting battery voltage and an energy input capacitor storing electric charge boosted by the energy input boosting circuit, and that releases the electric charge stored in the energy input capacitor to the primary coil, during a spark discharge started by operation of the main ignition CDI circuit, to make a secondary current flow in the same direction and to a secondary coil of the ignition coil, thereby making spark discharge continue which is started by the ...

IGNITION COIL HAVING A WINDING FORM

An ignition coil has a ferromagnetic core, a primary coil surrounding a portion of the core and wrapped helically with a conductor, a winding form having partitions extending outwardly of a tubular surface of the winding form, and a secondary coil wrapped on the winding form. The partitions define a plurality of annular coil chambers including central chambers and end chambers. The end chambers have a spiral land. The secondary coil includes coil sections in each of the plurality of coil chambers. The secondary coil has coil turns in the end chambers in a spiral configuration on the spiral land and increasing progressively in diameter toward the central chambers. 1. An ignition system comprising:a ferromagnetic core;a primary coil surrounding a portion of said ferromagnetic core, said primary coil being wrapped helically with a conductor;a winding form having partitions extending outwardly of a tubular surface of said winding form, said partitions defining a plurality of annular coil chambers including central chambers and end chambers, said end chambers having a spiral land; anda secondary coil wrapped on said winding form including coil sections in each of said plurality of coil chambers, said second coil having coil turns in said end chambers in a spiral configuration on said spiral land and increasing progressively in diameter toward said central chamber.2. The ignition coil of claim 1 , each of said end chambers has a depth less than a depth of said central chambers.3. The ignition coil of claim 1 , the partitions of one of said end chambers having a generally equal diameter.4. The ignition coil claim 3 , the partition of one of said end chambers being adjacent the end of said winding form.5. The ignition coil of claim 1 , the partitions of said and chamber progressively decreasing in radius from said central chambers.6. The ignition coil claim 1 , one of said end chambers having a greater width than another of said end chambers.7. The ignition coil of claim 1 ...

INTERNAL COMBUSTION ENGINE IGNITION DEVICE

An internal combustion engine ignition device comprises: a center core; a primary coil wound on the outside of the center core; a secondary coil wound on the outside of the primary coil; a permanent magnet which abuts against one end of the center core and is magnetized in the inverse direction to the direction of a magnetic flux produced by the energization of the primary coil; a side core which is disposed on the outside of the secondary coil with one end abutted against the permanent magnet and the other end abutted against the center core, the side core cooperating with the permanent magnet to form a closed magnetic path; and a heat-resistant and elastic resin covering the side core with an opening at an outer peripheral side. Heat dissipation from the side core to a housing is improved without adversely affecting the dielectric strength voltage of the secondary coil. 1. An internal combustion engine ignition device comprising:a stick center core;a primary coil wound on an outside of the center core;a secondary coil wound around an outside of the primary coil;a permanent magnet abutted against one end surface of the center core, the permanent magnet being magnetized in a direction opposite to a direction of a magnetic flux produced by energization of the primary coil;a side core disposed on an outside of the secondary coil with the one end abutted against the permanent magnet and the other end abutted against the center core, the side core cooperating with the permanent magnet to form a closed magnetic path; anda heat-resistant and elastic resin covering a surface of the side core,wherein a part of the resin is opened, the part covering at least an outer peripheral side of the side core.2. The internal combustion engine ignition device according to claim 1 ,wherein a through hole is provided in the resin.3. The internal combustion engine ignition device according to claim 2 ,wherein the diameter of the through hole close to the surface is larger than the ...

INTERNAL-COMBUSTION-ENGINE IGNITION COIL APPARATUS

There is provided an internal-combustion-engine ignition coil apparatus in which an igniter in a connector assembly is contained in the case of the ignition coil apparatus, in which an adhesive bonds the igniter to a heat sink inserted into the case through an opening window of the case and an adhesive bonds the heat sink to the inner circumferential surface of the opening window, and in which the exposed portion of the heat sink is exposed to the outside of the case through the opening window. 110-. (canceled)11. An internal-combustion-engine ignition coil apparatus that supplies an ignition plug mounted in an internal combustion engine with a voltage for producing a spark discharge , the internal-combustion-engine ignition coil apparatus comprising:a primary coil;a secondary coil disposed in such a way as to surround an outer circumferential portion of the primary coil;an iron core that makes the primary coil and the secondary coil magnetically couple with each other;a case that contains the primary coil, the secondary coil, and the iron core;a connector assembly in which a connector that is connected with an external power source and an igniter that is electrically connected with the connector and energizes or de-energizes the primary coil are integrally fixed to each other; anda heat sink that cools the igniter,wherein the connector assembly is assembled to the case,wherein the igniter is contained in the case,wherein the case has an opening window that opens in a wall face portion thereof facing a surface portion of the igniter, 'wherein a potting resin is filled into the case.', 'wherein the heat sink is inserted into the case through the opening window so as to be bonded not only to the surface portion of the igniter with a first adhesive but also to the inner circumferential surface of the opening window with a second adhesive, and the heat sink has an exposed portion that is exposed to the outside of the case through the opening window, and'}12: The ...

IGNITION COIL FOR INTERNAL COMBUSTION ENGINE

An ignition coil for internal combustion engines is provided which includes magnetically coupled primary and secondary coils, a case, a high-voltage tower, a resistor, and resin packed in the case. The case has the primary coil and the secondary coil disposed therein. The high-voltage tower is attached to a tower mount formed on a front end of the case. The resistor is embedded in the high-voltage tower with a front and a base end surfaces thereof exposed from the high-voltage tower. The resin is packed in the case to seal the primary coil and the secondary coil. This structure enhances the productivity of an assembly of the high-voltage tower and the resistor. 1. An ignition coil for an internal combustion engine comprising:a primary coil and a secondary coil which are magnetically coupled together;a case in which the primary coil and the secondary coil are disposed, the case having a front end and a base end which are opposed to each other, the casing also having a tower mount formed on the front end thereof;a high-voltage tower which is secured to the tower mount of said case;a resistor which has a front end surface and a base end surface which are opposed to each other, the resistor being embedded in the high-voltage tower with the front and base end surfaces exposed from the high-voltage tower; andresin which is packed within the case to seal the primary coil and the secondary coil.2. An ignition coil as set forth in claim 1 , further comprising a resinous joint and an electrical conductor claim 1 , the resinous joint being attached to the high-voltage tower for connecting the high-voltage tower and a spark plug together claim 1 , the electrical conductor being disposed in the joint to electrically connect the resistor and the spark plug.3. An ignition coil as set forth in claim 1 , wherein the high-voltage tower includes an extension extending toward a front end side of the high-voltage tower claim 1 , the extension having disposed therein an electrical ...

Corona ignition device having a hollow coil body

This disclosure relates to a corona ignition device having a coil, which has an elongate coil body and a coil winding wound onto the coil body, an ignition electrode connected to the coil, and an insulator, inside which the ignition electrode is situated. According to the present disclosure, the coil body has a hollow section.

Cylinder head having ignition plug wall and cooling cavity

A system a cylinder head for a reciprocating engine. The cylinder head includes an ignition plug wall surrounding a bore configured to receive an ignition plug, where the ignition plug wall is integral to the cylinder head, the bore has a diameter, and the ignition plug wall has a thickness. The cylinder head also includes a cooling cavity completely separated from the bore via the ignition plug wall, where the cooling cavity has a radial width relative to an axis of the bore. The cylinder head further includes at least one of a first ratio of a minimum of the thickness versus a minimum of the diameter less than approximately 0.5 or a second ratio of a minimum of the radial width versus the minimum of the diameter less than approximately 0.5, or a combination thereof.

Ignition coil with molding mark

In an ignition coil, a housing has an inner chamber, and a transformer is installed in the inner chamber of the housing. A molded side-core assembly of a transformer includes an arched side core magnetically coupled to first and second ends of a longitudinal center core and located outside a circumferential part of primary and secondary windings. The molded side-core assembly includes an insulation cover molded to cover at least part of the arched side core. The insulation cover has a surface and at least one molding mark formed on the surface thereof. An insulation filler is filled in the inner chamber of the housing while the at least part of the arched side core is exposed from the insulation filler and the at least one molding mark is hermetically sealed in the insulation filler.

SILICONE EXTENSION FOR AN IGNITION COIL FOR INTERNAL COMBUSTION ENGINES, IGNITION COIL COMPRISING SAID SILICONE EXTENSION AND METHOD OF ASSEMBLY FOR SAID IGNITION COIL

A silicone extension for an ignition coil for internal combustion engines including an elongated tubular body extending along its main direction between a first end portion, shaped to be engaged in a container containing electrical/electronic means for the generation of high voltage electrical energy, and a second end portion shaped to accommodate the insulating body of an ignition spark plug, wherein the tubular body is made of self-lubricating silicone rubber. 1. A silicone extension for an ignition coil for internal combustion engines , comprising an elongated tubular body extending along its main direction between a first end portion , shaped to be engaged in a container containing electrical/electronic means for the generation of high voltage electrical energy , and a second end portion shaped to accommodate the insulating body of an ignition spark plug;wherein the tubular body is made of self-lubricating silicone rubber.2. The silicone extension according to claim 1 , wherein its composition comprises an oil content of between 0.5% and 10% by weight.3. The silicone extension according to claim 2 , wherein its composition comprises an oil content of between 1% and 6% by weight claim 2 , preferably of about 3% by weight.4. A silicone extension according to claim 1 , wherein said oil is of the diathermic type.5. A silicone extension according to claim 2 , wherein said oil is dispersed homogeneously in the silicone rubber to facilitate a continuous lubrication of the material.6. A silicone extension according to claim 1 , wherein said tubular body has a longitudinal through cavity having a first enlarged section at its first end portion in order to house a connecting protrusion of a container containing electrical/electronic means for the generation of high voltage electrical energy.7. A silicone extension according to claim 1 , wherein said tubular body has a longitudinal through cavity having a second enlarged section at its second end portion in order to house ...

Onboard Controller

Provided is a system of carrying out engagement of a pinion and a ring gear at optimal timing and suppressing a bite-in sound, in a vehicle including an idle stop system. In a vehicle control device including an automatic stop unit which automatically stops an engine on the basis of an operating state of a vehicle; an automatic start unit which controls a starter during a period until the engine completely stops after the automatic stop unit executes the automatic stop of the engine, and restarts the engine; and an engine rotation detection unit which detects or operates a crank phase or a rotation number of the engine, the automatic start unit determines a control command of the starter at an interval shorter than an update interval of a signal of the engine rotation detection unit.

IGNITION COIL FOR INTERNAL COMBUSTION ENGINE

An ignition coil for an internal combustion engine is equipped with an assembly of a connector casing and a coil body. The coil body includes a primary winding wound around a primary spool. The connector casing has terminals each of which is equipped with a conductor fastener. The conductor fastener has a slit in which one of ends of the primary winding is fit to make an electric connection between the terminal and the primary winding. The primary spool has conductor guides and a backup support to establish alignment of each of the ends of the primary winding with one of the conductor fasteners and also to facilitate insertion of each of the ends of the primary winding into one of the conductor fasteners when the coil body is fitted into the connector casing, thereby ensuring the stability of electric connection between the primary winding and the terminal. 1. An ignition coil for an internal combustion engine comprising:a coil body which includes a coil casing, a primary coil, and a secondary coil, the primary coil including a cylindrical primary spool which is made of resin and around which a primary winding is wound, the secondary coil being disposed coaxially inside the primary coil, the primary coil and the secondary coil being disposed within the coil casing; anda connector casing which includes a fitting hole in which an end of the coil body is fit, the connector casing having disposed therein a conductive terminal which has a conductor fastener exposed inside the fitting hole, the conductor fastener having a gripping slit in which a winding end is gripped in electric connection therewith, the winding end extending from the primary spool substantially in a winding direction that is a direction in which the primary winding is wound;wherein the connector casing also includes a conductor guide which is disposed at least on one of sides of the conductor fastener which are opposed to each other in the winding direction, the conductor guide protruding toward the ...

IGNITION COIL

Provided is an ignition coil which is capable of maintaining reliable insulation performance over a long period of time. A coil main body unit (BDY), which houses a primary coil (L) and a secondary coil (L) as well as a switching element (Q), is configured such that the coil main body unit is segmented into a case main body () in which a housing space is provided, and a case lower portion () which abuts the perimeter of the case main body, and the primary coil and the secondary coil, which are placed in the case lower portion (), are covered by the case main body (). The secondary coil (L) is configured by winding a second winding () around a secondary bobbin (), through which a central hole (H) is extended in the horizontal direction, and the outer periphery of the same is covered by the case lower portion () and a protective cap () and filled with a first material. In a state in which the primary coil (L) is placed in the central hole (H), the remaining gap is filled with a secondary material. 1. An ignition coil comprising:a coil main body unit that houses a primary coil and a secondary coil electromagnetically coupled with each other, and a switching element that controls on-off of a current of the primary coil; anda projecting shaft unit that projects in a first direction from the coil main body unit,wherein the coil main body unit is segmented into a case main body having a housing space, and a case lower portion abutting a perimeter of the case main body, in which condition the primary coil and the secondary coil disposed on the case lower portion are covered by the case main body,the secondary coil is formed by winding a secondary winding around a secondary bobbin that includes a central hole penetrating the secondary bobbin in a second direction substantially perpendicular to a first direction, while an outer periphery of the secondary coil in the second direction is filled with a first insulation material in a state that the outer periphery of the ...

IGNITION COIL

An ignition coil for use in an internal combustion engine includes a primary coil, a secondary coil, a core, and a magnet. The core creates a closed magnetic circuit through which magnetic flux produced upon energization of the primary coil flows. The core has formed therein a gap through which the magnetic circuit passes. The magnet is disposed in the gap and has magnetic domains whose magnetization vectors are at least partially oriented obliquely relative to a gap direction. The orientation of the magnetization vectors in the magnet minimizes an energy loss when primary energy is transformed into secondary energy. 1. An ignition coil comprising:a primary coil and a secondary coil which are magnetically coupled with each other;a core which defines a closed magnetic circuit in which magnetic flux, as produced by energization of the primary coil, flows, the core having formed therein a gap through which the magnetic circuit passes; anda magnet which is disposed in the gap of the core,wherein the magnet has magnetization vectors at least a portion of which is inclined relative to a gap direction.2. The ignition coil as set forth in claim 1 , wherein the core includes a center core and an outer peripheral core claim 1 , the center core being disposed inside inner peripheries the primary and secondary coils claim 1 , the outer peripheral core being disposed outside outer peripheries of the primary and secondary coils claim 1 ,the center core includes a body and a flange, the center core having a length with a first end and a second end which are opposed to each other in the gap direction that is a lengthwise direction of the center core, the flange extending from the first end of the center core in a direction perpendicular to the gap direction,the magnet is disposed to face the first end of the center core in the gap direction, andthe magnet includes at least a first magnet and a second magnet at least one of which faces the flange in the gap direction and which has ...

IGNITION COIL FOR INTERNAL COMBUSTION ENGINE AND PRODUCTION METHOD FOR THE SAME

An ignition coil includes a not-illustrated coil, a plate assembly, and a case assembly. The plate assembly and the case assembly are combined with each other by laser welding at a recess and a rib (projection) which are respective abutting portions, thereby forming storage spaces for storing the coil. 1. A method for producing an ignition coil for an internal combustion engine , the method comprising:a step A of disposing a primary coil and a secondary coil on a plate assembly to form a coil assembly;a step B of forming a case cover assembly having an internal space;a step C of welding the case cover assembly to the coil assembly by application of laser light so as to store the primary coil and the secondary coil in the internal space; anda step D of injecting insulating resin into the case cover assembly and the coil assembly welded to each other and hardening the insulating resin.2. The method for producing the ignition coil claim 1 , for an internal combustion engine claim 1 , according to claim 1 , wherein claim 1 ,in the step C,the laser light is applied so as to be substantially transmitted through the plate assembly and substantially absorbed by the case cover assembly.3. The method for producing the ignition coil claim 1 , for an internal combustion engine claim 1 , according to claim 1 , wherein claim 1 , in the step C claim 1 , laser is applied such that portions which are welded by application of laser light and portions to which the laser light is not applied alternate in a joining portion between the case cover assembly and the coil assembly.4. The method for producing the ignition coil claim 1 , for an internal combustion engine claim 1 , according to claim 1 , wherein an air gap that allows gas to pass therethrough but does not allow the insulating resin to pass therethrough is provided in the joining portion between the case cover assembly and the coil assembly.5. An ignition coil for an internal combustion engine claim 1 , the ignition coil ...

Multiple pulse ignition system control

In a general aspect, an ignition circuit can include a control circuit that is coupled with an engine control unit (ECU) to receive a command signal from the ECU. The control circuit can include a multi-pulse generator configured to, in response to the command signal, generate a multi-pulse drive signal. The multi-pulse drive signal can include a first pulse cycle having a first duty cycle, a second pulse cycle having a second duty cycle, and a dwell period during which the multi-pulse drive signal continuously remains at a logic high value. The control circuit can be configured to provide the multi-pulse drive signal to an ignition switch coupled with the control circuit to receive the multi-pulse drive signal.

Control device for internal combustion engine

An ECU outputs an ignition signal and a discharge waveform control signal. An ignition device performs a closing operation of an ignition switching device while the ignition signal is input into the ignition device. The ignition device adjusts a current flowing through a primary coil to a discharge current command value determined based on the discharge waveform control signal, by performing an opening-closing operation of a control switching device in a period in which the discharge waveform control signal is input into the ignition device after an input of the ignition signal into the ignition device is stopped. The ECU sets the discharge current command value that is a command value for a discharge current of a spark plug to a higher value as a rotation speed is higher, and prolongs a duration, in which discharge controller controls the discharge current, as the rotation speed is lower.

IGNITION COIL FOR INTERNAL COMBUSTION ENGINE

An ignition coil includes a primary coil, a secondary coil, a center core, an outer core, an igniter, a coil case and an electrically-insulative fixation resin. On an interior surface of the coil case on a bottom part side in a mounting direction, there is formed a case-side rib to protrude from the interior surface of the coil case to a high-voltage side in an axial direction. The case-side rib has a taper shape such that the protruding amount of the case-side rib to the high-voltage side in the axial direction increases in the mounting direction toward the bottom part side. The case-side rib is arranged to abut a corner portion of the igniter on the bottom part side in the mounting direction and on a low-voltage side in the axial direction and thereby press the igniter against the outer core. 1. An ignition coil for an internal combustion engine , the ignition coil comprising:a primary coil configured to be supplied with electric power;a secondary coil arranged outside and coaxially with the primary coil, the secondary coil being configured to generate an induced electromotive force upon interruption of the electric power supply to the primary coil;a center core arranged inside the primary coil;an outer core that is quadrangular ring-shaped to have four parts thereof located respectively on opposite sides of the secondary coil in an axial direction and opposite sides of the secondary coil in a width direction perpendicular to the axial direction, the outer core and the center core together forming a closed magnetic circuit in the ignition coil;an igniter including a switching element configured to selectively permit and interrupt the electric power supply to the primary coil, the igniter being arranged, on a low-voltage side of the outer core in the axial direction, adjacent to the outer core;a coil case having an opening on one side in a mounting direction and a bottom part on the other side in the mounting direction, the mounting direction being perpendicular to ...

IGNITION DEVICE

A step-up transformer, an oscillator, and an ignition plug are comprised. The step-up transformer has a primary winding, a secondary winding, and a core. The ignition plug is connected to a first end of the secondary winding. A gap is formed in the core. The step up transformed is provided with a shielding part which is made of a conductive material and shields the magnetic flux leaking from the gap. A second end of the secondary winding is electrically connected to the shielding part. 1. An ignition device comprising:a step-up transformer including a primary winding, a secondary winding, and a core made of a soft magnetic material having a gap;an oscillator connected to the primary winding;an ignition plug connected to a first end of the secondary winding; anda shielding part made of a conductive material and shielding magnetic flux leaking from the gap, whereinthe ignition device is configured to cause the ignition plug to generate discharge by applying an alternating voltage to the primary winding by the oscillator, and causes a secondary voltage generated in the secondary winding to resonate, and a second end of the secondary winding, which is the end opposite to the first end, is electrically connected to the shielding part.2. The ignition device according to claim 1 , comprising a case for housing the step-up transformer claim 1 , wherein at a least a part of the case constitutes the shielding part.3. The ignition device according to claim 1 , wherein the second end of the secondary winding and the shielding part are grounded.4. The ignition device according to claim 1 , wherein a magnetic permeability of the core and a width of the gap of the core are determined so as to satisfy the following equations claim 1 , where η is a gain of the secondary voltage due to resonance claim 1 , fis a driving resonance frequency which is a resonance frequency of the secondary voltage when the ignition plug is generating the discharge claim 1 , and fis a self-resonance ...

IGNITION UNIT AND MOTORIZED PRODUCT

An ignition unit producing an ignition in a combustion chamber includes an electrode that has a tip section that is exposed to the combustion chamber when the ignition unit is fitted on a combustion engine. The electrode forms part of a microwave resonating structure that radiates a microwave field into the combustion chamber when a microwave excitation signal is applied to the electrode. A winding is electrically coupled to the electrode. The winding and the electrode form part of a radiofrequency resonator that radiates a radiofrequency field into the combustion chamber when a radiofrequency excitation signal is applied to the winding. A microwave signal path transfers the microwave excitation signal from a signal input connector on the ignition unit to the electrode. The microwave signal path includes an inductive portion and a capacitive coupling structure adapted to provide a capacitive coupling from the inductive portion to the electrode. 1. An ignition unit adapted to produce an ignition in a combustion chamber of a combustion engine , the ignition unit comprising:an electrode that has a tip section adapted to be exposed to the combustion chamber when the ignition unit is fitted on the combustion engine, the electrode forming part of a microwave resonating structure adapted to radiate a microwave field into the combustion chamber when a microwave excitation signal is applied to the electrode;a winding electrically coupled to the electrode whereby the winding and the electrode form part of a radiofrequency resonator adapted to radiate a radiofrequency field into the combustion chamber when a radiofrequency excitation signal is applied to the winding, the radiofrequency resonator having a primary resonance frequency comprised in a range between 1 MHz and 10 MHz; anda microwave signal path adapted to transfer the microwave excitation signal from a signal input connector on the ignition unit to the electrode, the microwave signal path comprising an inductive ...

IGNITION APPARATUS

An ignition apparatus includes an ignition plug, a boost transformer, an ignition power source and a measurement unit. The ignition plug has a center electrode and a ground electrode. The boost transformer supplies the ignition plug with electric power generated in a secondary coil upon supply of AC power from the ignition power source to a primary coil. The measurement unit measures the discharge voltage of the ignition plug. The ignition power source includes a discharge state determining unit that determines the discharge state of the ignition plug based on the measured discharge voltage and a current controlling unit that controls electric current supplied to the primary coil. When a discharge path formed between the center and ground electrodes of the ignition plug is determined by the discharge state determining unit as being in an over-extended state, the current controlling unit reduces the electric current supplied to the primary coil. 1. An ignition apparatus comprising:an ignition plug having a center electrode and a ground electrode to produce a discharge therebetween upon being supplied with electric power;a boost transformer having a primary coil and a secondary coil magnetically coupled with each other, the boost transformer being configured to supply the ignition plug with the electric power that is generated in the secondary coil by electromagnetic induction upon supply of AC power to the primary coil;an ignition power source configured to supply the primary coil of the boost transformer with the AC power; anda measurement unit configured to measure at least one of discharge voltage and discharge current of the ignition plug,whereinthe ignition power source includes a controller that has a discharge state determining unit configured to determine a discharge state of the ignition plug based on the at least one of the discharge voltage and the discharge current measured by the measurement unit and a current controlling unit configured to control ...

INTERNAL COMBUSTION ENGINE IGNITION DEVICE

The present application provides an internal combustion engine ignition device such that irregular winding of a primary coil and a tertiary coil and an increase in a number of components can be restricted. 1. An internal combustion engine ignition device , comprising:a primary coil that generates a magnetic flux by causing a direct current to flow;a secondary coil that generates a high voltage in accordance with a change in the magnetic flux;a tertiary coil magnetically coupled to the primary coil and the secondary coil; anda bobbin such that the primary coil and the tertiary coil are wound around a trunk portion, whereinthe tertiary coil is housed in a recessed portion provided in one portion of a surface portion of the trunk portion of the bobbin, and the primary coil is wound around a surface portion of the tertiary coil and a surface portion of the trunk portion of the bobbin in which the recessed portion is not formed.2. The internal combustion engine ignition device according to claim 1 , wherein flanges are provided one each in either end portion of the trunk portion of the bobbin claim 1 , the recessed portion is provided from an inner face of one of the flanges toward the other flange in a range not reaching the other flange claim 1 , and the tertiary coil is housed with no gap in the recessed portion.3. The internal combustion engine ignition device according to claim 1 , wherein the surface portion of the tertiary coil and the surface portion of the trunk portion of the bobbin are provided continuously.4. The internal combustion engine ignition device according to claim 1 , wherein a sectional form of the trunk portion of the bobbin is polygonal claim 1 , and the surface portion of the trunk portion of the bobbin is formed in a convex form such that a central portion of a line linking neighboring corner portions is caused to bulge outward.5. The internal combustion engine ignition device according to claim 1 , wherein a reduced thickness portion is ...

IGNITION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE

In an ignition control device for an internal-combustion engine, signal separation circuitry receives and separates an ignition control signal that is an integrated signal of a main ignition signal for controlling the main ignition operation, an energy input signal for controlling the energy input operation, and a target secondary current command signal. The ignition control signal is formed of a first signal and a second signal that are pulsed signals. The signal separation circuitry is configured to generate, from the ignition control signal, the main ignition signal based on rising edges of the first signal and the second signal as pulse-waveform information of the first signal and the second signal, generate the energy input signal based on a pulse width of the second signal as pulse-waveform information of the second signal, and generate the target secondary current command signal based on pulse-waveform information of the first signal. 1. An ignition control device for an internal-combustion engine , comprising:an ignition coil formed of a primary coil and a secondary coil, for generating discharge energy in the secondary coil connected to a spark plug by increasing or decreasing a primary current flowing through the primary coil;main ignition circuitry configured to control energization of the primary coil to perform a main ignition operation for generating a spark discharge in the spark plug;energy input circuitry configured to perform an energy input operation for superposing, on a secondary current flowing through the secondary coil generated by the main ignition operation, a current of same polarity;signal separation circuitry configured to receive an ignition control signal that is an integrated signal of a main ignition signal for controlling the main ignition operation, an energy input signal for controlling the energy input operation, and a target secondary current command signal, and separate the received ignition control signal into the main ...

Work Vehicle

A work vehicle includes an engine and a belt-type continuously variable transmission device provided on a lateral side of the engine and configured to (i) receive power from the engine and (ii) output the power to a traveling device while varying the power in terms of speed. The belt-type continuously variable transmission device has (i) an intake port which is present in the transmission device case and through which cooling air is sucked from outside the transmission device case into the transmission device case as a result of rotation of the rotary fan and (ii) a first exhaust port which is present in the transmission device case and through which the cooling air is discharged from inside the transmission device case as a result of the rotation of the rotary fan. The first exhaust port is present on a side of the exhaust pipe on which side the engine is present, and faces the engine. 1. A work vehicle , comprising:an engine; a transmission device case containing a belt pulley and an endless belt wound around the belt pulley;', 'a rotary fan provided inside the transmission device case;', 'an intake port which is present in the transmission device case and through which cooling air is sucked from outside the transmission device case into the transmission device case as a result of rotation of the rotary fan; and', 'a first exhaust port which is present in the transmission device case and through which the cooling air is discharged from inside the transmission device case as a result of the rotation of the rotary fan; and, 'a belt-type continuously variable transmission device provided on a lateral side of the engine and configured to (i) receive power from the engine and (ii) output the power to a traveling device while varying the power in terms of speed, the belt-type continuously variable transmission device includingan exhaust pipe extending in a front-rear direction above the belt-type continuously variable transmission device and configured to discharge ...

IGNITION COIL FOR PASSING ALTERNATING CURRENT TO A SPARK PLUG

An ignition coil has a core with a longitudinal axis, a secondary winding extending around the core, a sleeve extending around the core, a primary winding wrapped around the sleeve, and a controller connected to the primary winding so as to oscillate alternating current to said primary winding. The secondary winding has a high-voltage end and a low-voltage end. The primary winding is in spaced longitudinal relationship from the secondary winding. Specifically, the primary winding is located longitudinally away from the high-voltage end of the secondary winding. A bobbin is positioned over and around the core. The secondary winding is wrapped around at least a portion of the bobbin. 1. An ignition coil comprising:a core;a secondary winding extending around said core, said secondary winding having a high-voltage end and a low-voltage end;a sleeve extending over said core;a primary winding wrapped around said sleeve, said primary winding in spaced longitudinal relationship from said low-voltage end of said secondary winding, said primary winding located longitudinally away from said high-voltage end of said secondary winding; anda controller connected to said primary winding so as to oscillate alternating current to said primary winding.2. The ignition coil of claim 1 , said core being formed of a ferrite material.3. The ignition coil of claim 1 , further comprising:a bobbin positioned over and around said core, said secondary winding wrapped around a portion of said bobbin.4. The ignition coil of claim 1 , said bobbin having a plurality of bays form thereon claim 1 , said secondary winding received in said plurality of bays.5. The ignition coil of claim 4 , said plurality of bays formed adjacent said high-voltage end of said secondary winding.6. The ignition coil of claim 3 , said sleeve being integral with said bobbin.7. The ignition coil of claim 1 , said secondary winding having approximately 7000 turns claim 1 , said primary winding having approximately 6 turns.8. ...

IGNITION APPARATUS

There is provided an ignition apparatus that makes it possible that after a spark discharge starts, a secondary current is reduced so that a plug is suppressed from being consumed. The ignition apparatus is provided with an ignition coil including a primary coil, a secondary coil, and a tertiary coil, a first switching circuit for performing on/off-switching of energization of the primary coil from a power source, a second switching circuit for performing on/off-switching of energization of the tertiary coil, and a controller that performs on/off-control of the first switching circuit so as to generate a secondary current in the secondary coil, thereby causing a spark discharge in an ignition plug, and then turns on the second switching circuit so as to reduce the secondary current through a change in flux in the tertiary coil. 1. An ignition apparatus comprising: a primary coil,', 'a secondary coil that is magnetically coupled with the primary coil and supplies a secondary current to an ignition plug, and', 'a tertiary coil that is magnetically coupled with the primary coil and the secondary coil and generates energization flux for reducing the secondary current;, 'an ignition coil including'}a first switching circuit for performing on/off-switching of energization of the primary coil from a power source;a second switching circuit for performing on/off-switching of energization of the tertiary coil; anda controller that performs on/off-control of the first switching circuit so as to generate the secondary current in the secondary coil through a change in flux generated in the primary coil, thereby causing a spark discharge in the ignition plug and that performs on/off-switching of the second switching circuit after the secondary current has been generated, thereby reducing the secondary current through a change in flux in the tertiary coil.2. The ignition apparatus according to claim 1 , wherein the tertiary coil and the second switching circuit are connected in ...

IGNITION COIL

A magnetic path is formed of a center core disposed inside a first coil and second coil, a first side core and second side core disposed outside the first coil and second coil and coming into contact with the center core, and a magnet disposed between the first side core and second side core, wherein a shape of a space formed by a portion of contact between the first side core and second side core is a shape that forms an insertion portion of the magnet disposed obliquely with respect to the magnetic path, and voids perpendicular with respect to the magnetic path at either end portion of the magnet. 1. An ignition coil , comprising:a center core disposed inside a first coil and second coil;a first side core and second side core disposed outside the first coil and second coil and coming into contact with the center core; anda magnet disposed between the first side core and second side core,thereby forming a magnetic path passing through the center core, the first side core and second side core, and the magnet, whereinthe first side core and second side core form a space at a portion of contact between the two, and a shape of the space is a shape that forms an insertion portion of the magnet disposed obliquely with respect to the magnetic path, and voids perpendicular with respect to the magnetic path at either end portion of the magnet.2. The ignition coil according to claim 1 , wherein an inner peripheral side void of the voids is on an axial line±10% from a central axis of a winding length of the first coil.3. The ignition coil according to claim 1 , wherein an interval of the voids is equal to or less than a thickness of the magnet.4. The ignition coil according to claim 1 , wherein an interval of the voids is 0.45 to 0.55 times a thickness of the magnet claim 1 , and a width of the voids is of a dimension such that an angle θ with respect to the magnetic path is 10° to 13°. The present invention relates to an ignition coil, and in particular, relates to an ...

IGNITION CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE

An ignition control system for an internal combustion engine includes a controller, which includes an IGT generating section and an IGW generating section and is connected to ignition devices through an IGT signal line and an IGW signal line. The IGW signal line includes bifurcated portions, which sequentially bifurcate from a common main signal line. The bifurcated portions each correspond to one of the ignition devices and include a branched line, which is connected to an energy supply circuit inside the corresponding ignition device. 1. An ignition control system for an internal combustion engine comprising:a plurality of ignition devices corresponding to a plurality of cylinders of the internal combustion engine, anda controller, which outputs signals for controlling the ignition devices, whereineach ignition device includes:an ignition coil, which generates discharge energy in a secondary coil connected to an ignition plug by an increase and decrease in a primary current that flows through a primary coil, a main ignition circuit, which controls current supply to the primary coil to perform a main ignition operation that causes a spark discharge at the ignition plug, and an energy supply circuit, which performs an energy supply operation that superimposes current on a secondary current that flows through the secondary coil by the main ignition operation,the controller includes:an IGT generating section, which generates a main ignition signal for controlling the main ignition operation, and an IGW generating section, which generates an energy supply signal for controlling the energy supply operation, whereinthe controller is connected to the ignition devices through an IGT signal line for transmitting the main ignition signal and an IGW signal line for transmitting the energy supply signal,the IGW signal line includes a common main signal line having one end connected to the controller and a plurality of bifurcated portions, which sequentially bifurcate from the ...

IGNITION COIL FOR INTERNAL COMBUSTION ENGINE

An ignition coil for an internal combustion engine includes a coil main body portion, a connecting portion, and a conducting member. A convex surface forming portion, which is a portion constituting an inner peripheral convex surface, is disposed in the connecting portion. The convex surface forming portion has an outer peripheral concave surface. The connecting portion has a boundary portion which is a boundary between the convex surface forming portion and other portions in the axial direction. In the convex surface forming portion, at least a part of a region where the outer peripheral concave surface is formed has a portion having an area, in a cross-section orthogonal to the axial direction, equal to or smaller than that of the boundary portion. A thickness of the convex surface forming portion is equal to or thicker than that of the boundary portion. 1. An ignition coil for an internal combustion engine comprising:a coil main body portion having a primary coil and a secondary coil magnetically coupled to each other;a cylindrical connecting portion for connecting the coil main body portion and a spark plug; anda conducting member disposed inside the connecting portion and electrically connecting the coil main body portion and the spark plug; whereina convex surface forming portion, which is a portion constituting an inner peripheral convex surface, an inner peripheral surface of which projects toward an inner peripheral side, is disposed in the connecting portion;the convex surface forming portion has an outer peripheral concave surface, an outer peripheral surface of which is recessed toward the inner peripheral side;the connecting portion has a boundary portion which is a boundary between the convex surface forming portion and other portions in an axial direction;in the convex surface forming portion, at least a part of a region where the outer peripheral concave surface is formed has a portion having an area, in a cross-section orthogonal to the axial ...

Ignition coil for internal combustion engine

In an ignition coil for an internal combustion engine, a spark plug is incorporated which has an insulator including an insulator head that has no corrugation. The ignition coil has a coil body part generating high voltage and a joint part, which holds therein a conducting member electrically connecting the coil body part and a spark plug. The joint part has a plug cap into which the insulator head of the spark plug is inserted and which is formed of an elastic member having a cylindrical shape. The plug cap has a close-contact part whose inner peripheral surface is closely brought into contact with an outer peripheral surface of the insulator. The close-contact part has a tip end-side close-contact part positioned at a tip end side with respect to a middle position in an axial direction, and a base end-side close-contact part positioned at a base end side with respect to the middle position. At least part of the base end-side close-contact part is provided with a strong strained force part that has strained force for fastening the insulator head, the strained force being stronger than strained force of all portions of the tip end-side close-contact part.

CONTROL APPARATUS AND CONTROL METHOD

A discharge control unit causes a high voltage to be generated in a secondary coil by controlling an igniter unit so as to block a flow of current from a primary coil towards a ground side, and controls a spark plug so that electric discharge is formed between electrodes of the spark plug. An energy input control unit controls an energy input unit to input electrical energy to an ignition coil after start of control of the spark plug by the discharge control unit. A normal ignition control unit controls ignition of an air-fuel mixture in a combustion chamber only through control of the spark plug by the discharge control unit. A specific ignition control unit controls the ignition of the air-fuel mixture in the combustion chamber through control of the spark plug by the discharge control unit and through control of the energy input unit by the energy input control unit. A control unit performs ignition control by the specific ignition control unit until a first predetermined period elapses after a start-up condition of an engine is established, and switches to ignition control by the normal ignition control unit after the elapse of the first predetermined period. 1. A control apparatus that controls an ignition apparatus , the ignition apparatus including:a spark plug that is provided to a combustion chamber of an internal combustion engine and is capable of igniting the air-fuel mixture in the combustion chamber by generating electric discharge;an ignition coil that has a primary coil of which one end is connected to a power supply side and another end is connected to a ground side, and through which a primary current flows, and a secondary coil of which one end is connected to the spark plug and through which a secondary current flows;an igniter unit that is connected to a ground side of the primary coil and is provided to be capable of allowing or blocking the primary current flowing through the primary coil; andan energy input unit that is capable of inputting ...

Internal combustion engine combustion state detecting device

The invention provides an internal combustion engine combustion state detecting device such that ascertaining a combustion state using ionic current detection is carried out accurately over a wide operating range of an internal combustion engine. The internal combustion engine combustion state detecting device includes a spark plug that has a central electrode and a grounding electrode opposing across a gap, and a discharge stopping-induced current detecting device that estimates an induced current caused by a stopping of a spark discharge generated in the gap between the central electrode and the grounding electrode, wherein an ionic current detection threshold is set to a threshold value that is not affected by the induced current using the induced current estimated by the discharge stopping-induced current detecting device.

IGNITION APPARATUS FOR INTERNAL COMBUSTION ENGINE

An ignition apparatus includes a blow-off determining unit. The blow-off determining unit determines, when a secondary electric current drops below a predetermined threshold value Ia during a determination period, that blow-off has occurred; the determination period is a predetermined time period ΔT from the start of a spark discharge by a main ignition circuit. Further, when it is determined that blow-off has occurred during a main ignition (full-transistor ignition), it is controlled to perform a continuing spark discharge after the main ignition in a next cycle. Moreover, a secondary electric current command value Ia in performing the continuing spark discharge is set to an electric current value that is obtained by adding a predetermined electric current value α to the predetermined threshold value Ia used in the blow-off determination. Consequently, in the next cycle, it is possible to reliably prevent blow-off, thereby reliably preventing a misfire. 1. An ignition apparatus for an internal combustion engine , the ignition apparatus comprising:a main ignition circuit that performs an energization control of a primary coil of an ignition coil, thereby causing a spark discharge in an ignition plug;an energy input circuit that inputs electrical energy to the primary coil during the spark discharge started by operation of the main ignition circuit, thereby applying a secondary electric current in the same direction to a secondary coil of the ignition coil, the energy input circuit also keeping the secondary electric current at a secondary electric current command value, thereby continuing the spark discharge started by operation of the main ignition circuit; anda blow-off determining unit which determines, when the secondary electric current drops below a predetermined threshold value Ia during a determination period, that blow-off has occurred, the determination period being a predetermined time period ΔT from the start of the spark discharge by the main ignition ...

MOTORCYCLE IGNITION COIL ASSEMBLY

In accordance with one embodiment, an ignition coil assembly includes an ignition coil cover, a boot, and an ignition coil. The ignition coil cover includes a plurality of fins, an opening, and a channel. The boot includes a slotted opening and a centralized orifice and is configured to be disposed within the opening of the ignition coil cover. The ignition coil includes a seat and a tab. The ignition coil is configured to be disposed within the centralized orifice. The seat is capable of supporting the ignition coil within the centralized orifice of the boot. The tab is configured to be inserted into the slotted opening and the channel when the ignition coil is disposed within the centralized office and the boot is disposed within the opening. 1. An ignition coil assembly comprising:an ignition coil cover comprising an opening, at least one channel, and a plurality of fins;a boot comprising at least one slotted opening and a centralized orifice, and configured to be disposed within the opening of the ignition coil cover; andan ignition coil configured to be disposed within the centralized orifice of the boot and comprising at least one tab configured to be inserted into the slotted opening and the channel when the ignition coil is disposed within the centralized office and the boot is disposed within the opening.2. The ignition coil of further comprising at least one post attached to a top fin of the plurality of fins and at least one aperture in the top fin.3. The ignition coil of further wherein a central axis of the at least one post is substantially perpendicular to the plurality of fins.4. The ignition coil of where the ignition coil further comprising a seat capable of supporting the ignition coil within the centralized orifice of the boot.5. The ignition coil assembly of further comprising at least one mount attached to the at least one post.6. The ignition coil assembly of wherein the fins are aligned in a stadium style arrangement This application claims ...

IGNITION COIL FOR INTERNAL COMBUSTION ENGINE

An ignition coil includes a primary coil, a secondary coil, a primary bobbin, a secondary bobbin, a center core, and a mold resin. The center core has a pair of collar portions protruding from a main body of the center core respectively to opposite sides in a protruding direction. The primary bobbin has a collar portion at least partially sandwiched between the collar portions of the center core and the secondary bobbin in a coil axial direction. The collar portion of the primary bobbin includes an overlapping portion that overlaps the collar portions of the center core in the coil axial direction and is bonded to the collar portions. The primary bobbin is formed of a thermoplastic resin and dispersed-phase particles dispersed in the thermoplastic resin. In the overlapping portion of the primary bobbin, there is formed a specific separating layer that separates adjacent layers in the coil axial direction. 1. An ignition coil for an internal combustion engine , the ignition coil comprising:a primary coil and a secondary coil that are magnetically coupled with each other;a primary bobbin having the primary coil wound thereon;a secondary bobbin having the secondary coil wound thereon;a center core; anda mold resin having the primary coil, the secondary coil, the primary bobbin, the secondary bobbin and the center core embedded therein,whereinthe center core has a main body arranged inside the primary bobbin and a pair of collar portions protruding from the main body respectively to opposite sides in a protruding direction crossing a coil axial direction,the primary bobbin has, in one part thereof in the coil axial direction, a main body on which the primary coil is wound,the primary bobbin also has, in another part thereof in the coil axial direction, a collar portion that is at least partially sandwiched between the collar portions of the center core and the secondary bobbin in the coil axial direction,the collar portion of the primary bobbin includes an overlapping ...

Spark Plug Extension

The following invention relates to an ignition coil assembly for an ignition system comprising an ignition coil where said assembly has a main axis and is configured for insertion into and/or removal out of a well associated with an internal combustion engine, wherein the assembly comprises an elongated extension body made of flexible material, said extension body comprising an upper end portion and a lower end portion wherein the extension body is arranged to be transversally bendable in relation to the main axis so that the upper end portion and the lower end portion may assume an angle (α) in relation to each other. 131901666265662652236665623. An ignition coil assembly for an ignition system comprising an ignition coil () where said assembly () has a main axis (A) and is configured for insertion into and/or removal out of a well () associated with an internal combustion engine , and said assembly () comprises an elongated extension body () made of flexible material , said extension body () comprising an upper end portion () and a lower end portion () wherein the extension body () is arranged to be transversally bendable in relation to the main axis (A) so that the upper end portion () and the lower end portion () may assume an angle (a) in relation to each other characterized in that a spark plug () is detachably arranged within a spark plug boot () which is removably mounted onto a second joining section () at a lower end portion () of the extension body () , wherein the spark plug boot () has a diameter arranged to allow use of a spark plug wrench.26103103. The assembly according to claim 1 , wherein the elongated extension body () interconnects a spark plug receiving end portion () and the ignition coil () to each other and which is arranged to be transversally bendable in relation to the main axis (A) so that the spark plug receiving end portion () and the ignition coil () may be configured to assume an angle in relation to each other.3363626. The assembly ...

IGNITION DEVICE FOR A GAS COOKING APPLIANCE

The present invention relates to an ignition device for a gas cooking appliance, the ignition device comprising at least one ignition device module (A, B) with a primary voltage input terminal (), a transformer, and at least one secondary voltage output terminal (A, B). The transformer is adapted to transform a primary voltage applied to the primary voltage input terminal into a secondary voltage at the secondary voltage output terminal, and the secondary output terminal is adapted to be connected to a spark electrode. According to the invention the ignition device module (A, B) further comprises a primary voltage output terminal (). 1. An ignition device for a gas cooking appliance , the ignition device comprising at least one ignition device module with a primary voltage input terminal , a transformer , and at least one secondary voltage output terminal , wherein the transformer is adapted to transform a primary voltage applied to the primary voltage input terminal into a secondary voltage at the secondary voltage output terminal , and the secondary voltage output terminal is adapted to be connected to a spark electrode , wherein the ignition device module further comprises a primary voltage output terminal.2. The ignition device of claim 1 , wherein the ignition device comprises a plurality of said ignition device modules claim 1 , whereinthe primary voltage input terminal of a first said ignition device module is adapted to be connected to a power supply, andthe primary voltage input terminal of a subsequent said ignition device module is connected to the primary voltage output terminal of the first ignition device module.3. The ignition device according to claim 1 , wherein the ignition device comprises a plurality of said ignition device modules claim 1 , wherein the primary voltage input terminal of a first said ignition device module is adapted to be connected to a power supply claim 1 , and wherein the plurality of ignition device modules are connected in ...

IGNITION COIL FOR INTERNAL COMBUSTION ENGINE

An ignition coil for an internal combustion engine includes a primary bobbin including a winding cylinder part and a connection part between the winding cylinder part and a connector part, a primary coil including a primary main coil and a primary sub coil, and a secondary coil. When one of the primary main coil and the primary sub coil that includes an innermost coil part around the winding cylinder part is defined as a firstly-wound coil and the other is defined as a secondly-wound coil, firstly-wound ends, which are ends of the firstly-wound coil, and secondly-wound ends, which are ends of the secondly-wound coil, are attached to the connection part, and a shortest distance from a central axis of the winding cylinder part to each of the firstly-wound ends is smaller than a shortest distance from the central axis of the winding cylinder part to each of the secondly-wound ends. 1a primary bobbin made of an insulating material and including a winding cylinder part and a connection part connected to the winding cylinder part and positioned between the winding cylinder part and a connector part;a primary coil including a primary main coil and a primary sub coil separately wound around the winding cylinder part; anda secondary coil that is concentric with the primary coil, wherein,when one of the primary main coil and the primary sub coil that includes an innermost coil part around the winding cylinder part is defined as a firstly-wound coil and the other is defined as a secondly-wound coil, andfirstly-wound ends, which are a pair of ends of the firstly-wound coil, and secondly-wound ends, which are a pair of ends of the secondly-wound coil, are attached to the connection part, further comprising:a central core made of a soft magnetic material and placed on an inner side of the primary coil and the secondary coil;an outer core made of a soft magnetic material, forming a closed magnetic path together with the central core, and placed on an outer side of the primary coil ...

IGNITION COIL FOR INTERNAL COMBUSTION ENGINE

An ignition coil for an internal combustion engine is provided which includes a case, a connector, a resinous member, and a retainer. The case is equipped with an opening portion and has component parts mounted therein. The connector is electrically connected to an external device. The resinous member is disposed in the case. The retainer firmly hold an external connecting member joined to the connector. The retainer is mechanically discrete from the case and secured to an attachment wall of the case. The attachment wall is defined by at least one of a wall of the case which constitutes the opening portion and a wall secured to the opening portion. The retainer has a portion embedded in the resinous member. This structure minimizes fretting wear between terminals of the connector and the external connecting member such as a wire harness. 1. An ignition coil for an internal combustion engine comprising:a case in which component parts are disposed and which has an opening portion;a connector which is used to achieve an electrical connection with an external device;a resinous member which is disposed in the case; anda retainer which retains an external connecting member joined to the connector,wherein the retainer is mechanically discrete from the case and secured to an attachment wall that is at least one of a wall of the case which constitutes the opening portion and a wall attached to the opening portion, andwherein a portion of the retainer is embedded in the resinous member.2. An ignition coil for an internal combustion engine as set forth in claim 1 , further comprising a resin-exposing opening portion which is defined by at least a part of the opening portion and exposes an exposed surface of the resinous member claim 1 , the resin-exposing opening portion extending around an entire circumference of the exposed surface claim 1 , and wherein the retainer is mechanically discrete from the wall of the case constituting the resin-exposing opening portion claim 1 , ...

Automobile Ignition with Improved Coil Configuration

An automobile ignition coil for use in an ignition system is provided having a central cylindrical magnetic core element, and a secondary coil circumscribing the core element. The second linear length of copper wire has a cross sectional area in a rectangular, rhomboid or hexagonal regular polygonal shape. A primary coil circumscribes the secondary coil, and similarly has a cross sectional area in a rectangular, rhomboid or hexagonal regular polygonal shape.

IGNITION COIL FOR INTERNAL COMBUSTION ENGINE

A primary coil which includes a primary winding which is wound around a primary bobbin, and a secondary coil which includes a secondary winding which is separately wound around a secondary bobbin which includes a plurality of sections, are provided, and a winding portion of the secondary coil is configured in a state where a maximum winding height is set as 20% through 30% with respect to an axis length winding length. 1. An ignition coil for an internal combustion engine , comprising:a primary coil which includes a primary winding which is wound around a primary bobbin;a secondary coil which is arranged at an outer circumference of the primary coil, and includes a secondary winding which is separately wound around a secondary bobbin which is coaxially arranged with respect to the primary coil and includes a plurality of sections, and supplies a high voltage to an ignition plug in accordance with an energization operation or a breaking operation of a primary electric current which is flowed to the primary winding;an iron core by which the primary coil and the secondary coil are magnetically linked; andan insulating case in which the primary coil, the secondary coil, and the iron core are installed; whereina winding portion of the secondary coil is configured in a state where a maximum winding height is set as 20% through 30% with respect to an axis length winding length.2. An ignition coil for an internal combustion engine claim 1 , as recited in claim 1 , wherein a plurality of the sections claim 1 , which are included in the secondary bobbin claim 1 , are separated by using walls claim 1 , and the walls between sections claim 1 , which have many windings of the secondary coil claim 1 , are thicker than the walls between sections which have few windings.3. An ignition coil for an internal combustion engine claim 1 , as recited in claim 1 , wherein an internal diameter of the secondary winding is large and an outside shape is small at a section at a winding end side ...

SPARK IGNITION ENGINE

A cylindrical part capable of supporting an ignition-coil-integrated plug cap is formed on a head cover so as to correspond to a plug hole of a cylinder head. The cylindrical part is formed by fitting and fixing a pipe material to a mounting hole part formed in the head cover, the mounting hole part facing the plug hole. 1. A spark ignition engine comprising a cylindrical part capable of supporting a plug cap connected to an ignition coil , the cylindrical part being formed on a head cover so as to correspond to a plug hole of a cylinder head.2. The spark ignition engine according to claim 1 , wherein the cylindrical part is formed by fitting and fixing a pipe material to a mounting hole part formed in the head cover claim 1 , the mounting hole part facing the plug hole.3. The spark ignition engine according to claim 2 , wherein the pipe material is inserted into the mounting hole part by press fitting.4. The spark ignition engine according to claim 1 , further comprising a fixing unit that prevents the plug cap supported by the cylindrical part from being detached from the cylindrical part claim 1 , the fixing unit being provided on an outer wall of a valve operating mechanism housing part of the head cover.5. The spark ignition engine according to claim 2 , further comprising a fixing unit that prevents the plug cap supported by the cylindrical part from being detached from the cylindrical part claim 2 , the fixing unit being provided on an outer wall of a valve operating mechanism housing part of the head cover.6. The spark ignition engine according to claim 3 , further comprising a fixing unit that prevents the plug cap supported by the cylindrical part from being detached from the cylindrical part claim 3 , the fixing unit being provided on an outer wall of a valve operating mechanism housing part of the head cover.7. The spark ignition engine according to claim 4 , whereinthe plug cap is an ignition-coil-integrated plug cap having an ignition coil, andthe ...

CONNECTOR PLUG FOR CONNECTING AN IGNITION COIL TO A SPARK PLUG

A connector plug is described for connecting an ignition coil to a spark plug, comprising an electrical conductor, which has a first end for contacting the ignition coil and a second end for contacting the spark plug, and a protective tube, which surrounds the electrical conductor. In accordance with this disclosure it is proposed that the protective tube has a predetermined bending point with a reduced bending stiffness. 1. A connector plug for connecting an ignition coil to a spark plug , comprising:an electrical conductor having a first end configured for contacting the ignition coil and a second end configured for contacting the spark plug; anda protective tube surrounding the electrical conductor;wherein the protective tube has a predetermined bending point with a reduced bending stiffness.2. The connector plug in accordance with claim 1 , wherein the protective tube has a plurality of reinforcement ribs extending in a longitudinal direction thereof claim 1 , and wherein the predetermined bending point comprises a recess in one or a plurality of the reinforcement ribs.3. The connector plug in accordance with claim 2 , wherein one or more of the reinforcement ribs has no recess for reducing the bending stiffness.4. The connector plug in accordance with claim 3 , wherein the protective tube has four reinforcement ribs claim 3 , wherein two opposing reinforcement ribs have a predetermined bending point comprising a recess claim 3 , and two reinforcement ribs have no recess.5. The connector plug in accordance with claim 2 , wherein the width of the recess claim 2 , measured in the longitudinal direction of the reinforcement ribs claim 2 , is equal to or greater than the width of the reinforcement ribs measured transversely to their longitudinal direction.6. The connector plug in accordance with claim 5 , wherein the width of the recess measured in the longitudinal direction of the reinforcement ribs is not more than three times the width of the reinforcement ribs ...

Ignition coil for internal combustion engine

An ignition coil has primary and secondary coils, a coil casing having a casing body, an accommodating part and a high voltage tower shaped part of a cylindrical shape, a resistance member arranged as a movable member in a tower through hole of the high voltage tower, a high voltage cap, and an insulation resin member with which the accommodating part is filled. A proximal end part of the tower through hole has an inner diameter which is greater than an outer diameter of a maximum outer diameter part of the resistance member. A distal end part of the tower through hole has an inner diameter which is less than the outer diameter of the maximum outer diameter part of the resistance member. A vent part is formed, through which the proximal end part of the tower through hole communicates with the distal end part of the tower through hole.

IGNITION COIL UNIT

An ignition coil unit comprises a primary coil, a secondary coil, a housing and a terminal metallic part. A portion of the terminal metallic part is buried in a burying wall formed in the housing. The other portion of the terminal metallic part is disposed in an interior of the housing. The terminal metallic part includes an inner terminal extended from a burying wall main surface and at least partially disposed in the interior of the housing. The inner terminal includes a terminal first portion extended along a normal line of the terminal burying wall main surface from the terminal burying wall main surface to the interior of the housing and a terminal second portion extended upward from the terminal first portion. The housing includes a protrusion to horizontally protrude from the terminal burying wall main surface while facing the bottom surface of the terminal first portion. 1. An ignition coil unit comprising:a primary coil;a secondary coil magnetically coupled to the primary coil;an igniter to energize and deenergize the primary coil;a housing to accommodate the primary coil and the secondary coil in an interior thereof, the housing having a terminal burying wall, the terminal burying wall having a terminal burying wall main surface facing to an interior of the housing; and the at least one inner terminal having a terminal first portion extended in a normal line direction of the terminal burying wall main surface from the terminal burying wall main surface toward the interior of the housing,', 'the at least one inner terminal having a terminal second portion continuously extended from a leading end of the terminal first portion in a vertical direction along the terminal burying wall main surface,', 'the at least one inner terminal either press-fit by a terminal of a part installed in the housing or joining the terminal by welding at the terminal second portion,, 'the terminal metallic part including at least one inner terminal at least partially arranged in ...

IGNITION COIL FOR USE IN INTERNAL COMBUSTION ENGINE

An ignition coil for use in an internal combustion engine includes a coil assembly including a primary coil and a secondary coil, a lead terminal electrically connected to the secondary coil, a noise prevention resistor connected to a spark plug, and a case. An internal space of the case includes a first space holding the coil assembly and the lead terminal and a second space including the noise prevention resistor. The case includes a pair of guides protruding toward the first space. The lead terminal passes through a gap between the pair of guides and is in contact with an exposed surface of the noise prevention resistor. This can reduce deviation of the lead terminal. As a result, the secondary coil and the noise prevention resistor can be electrically connected to each other without intervention of a high-voltage terminal therebetween. 1. An ignition coil for use in an internal combustion engine comprising:a coil assembly including a primary coil and a secondary coil;a lead terminal electrically connected to the secondary coil;a noise prevention resistor electrically connected to a spark plug that performs an ignition operation in a combustion chamber of the internal combustion engine, the noise prevention resistor being configured to reduce an ignition noise; anda case holding the coil assembly, the lead terminal, and the noise prevention resistor, whereinan internal space of the case includes;a first space holding the coil assembly and the lead terminal; anda second space that is continuous with the first space and holds the noise prevention resistor,the case includes a pair of guides protruding toward the first space, andwhile the coil assembly, the lead terminal, and the noise prevention resistor are held in the case, the lead terminal passes through a gap between the pair of guides and is in contact with an exposed surface exposed to the first space in the noise prevention resistor.2. The ignition coil according to claim 1 , whereinthe gap between the pair ...

IGNITION COIL FOR INTERNAL COMBUSTION ENGINE

An ignition coil for internal combustion engines is provided which includes a primary coil, a secondary coil, a case, a high-voltage terminal, a resistor, and a filled resin. The case has a case body and a high-voltage terminal extending downward from the case body. The high-voltage terminal is press-fit in the high-voltage tower to close the inside thereof. The resistor is fit in the high-voltage terminal. The high-voltage terminal includes a pressed wall and a non-pressed wall. The pressed wall is pressed against the high-voltage tower. The non-pressed wall is not pressed against the high-voltage tower. The resistor is fit in the non-pressed wall. This structure minimizes pressure exerted on the resistor and the high-voltage tower to secure a desired degree of durability of the resistor and the high-voltage tower. 1. An ignition coil for an internal combustion engine comprising:a primary coil and a secondary coil which are magnetically coupled with each other;a case which includes a case body in which the primary and secondary coils are disposed and a high-voltage tower which is of a hollow cylindrical shape and extends downward from the case body;a high-voltage terminal which is press-fit in the high-voltage tower to close an inside of the high-voltage tower, the high-voltage terminal being of a hollow cylindrical shape with a bottom and an upper opening facing upward;a resistor which is fit in the high-voltage terminal; anda filled resin which is disposed inside the case body and hermetically seals the primary and secondary coils,wherein the high-voltage terminal includes a pressed wall and a non-pressed wall which are arranged adjacent each other in a vertical direction, the pressed wall being pressed against the high-voltage tower, the non-pressed wall being not pressed against the high-voltage tower, andwherein the resistor is fit in the non-pressed wall.2. An ignition coil for an internal combustion engine as set forth in claim 1 , wherein the pressed wall ...

IGNITION COIL FOR INTERNAL COMBUSTION ENGINE

An ignition coil for internal combustion engines is provided which includes a primary coil, a secondary coil, a case, a closing member, and a filled resin. The case includes a case body and a high-voltage tower. The closing member is press fit in the high -voltage tower to close the inside of the high-voltage tower. The closing member includes a resinous cylinder, a high-voltage terminal firmly attached to the resinous cylinder, and a resistor fit in the high-voltage terminal. The high-voltage terminal is of a hollow cylindrical shape with a bottom and an upper opening. The closing member has an outer peripheral surface of the resinous cylinder press-fit in the high-voltage tower. This structure minimizes pressure exerted on the resistor and the high-voltage tower to secure a desired degree of durability of the resistor and the high-voltage tower. 1. An ignition coil for an internal combustion engine comprising:a primary coil and a secondary coil which are magnetically coupled with each other;a case which includes a case body in which the primary and secondary coils are disposed and a high-voltage tower which is of a hollow cylindrical shape and extends downward from the case body;a closing member which is press-fit in the high-voltage tower to close an inside of the high-voltage tower; anda filled resin which is disposed inside the case body and hermetically seals the primary and secondary coils,wherein the closing member includes a resinous cylinder, a high-voltage terminal, and a resistor, the high-voltage terminal being firmly attached to the resinous cylinder and of a hollow cylindrical shape with a bottom and an upper opening facing upward, the resistor being disposed inside the high-voltage tower, andwherein the closing member is pressed at an outer peripheral surface of the resinous cylinder against the high-voltage tower.2. An ignition coil for an internal combustion engine as set forth in claim 1 , wherein the outer peripheral surface of the resinous ...

IGNITION COIL FOR AN INTERNAL COMBUSTION ENGINE AND METHOD FOR MANUFACTURNG THE SAME

A method for manufacturing an ignition coil for an internal combustion engine includes manufacturing a containment body provided with a containment chamber, defining an internal volume, and with a lateral seat facing outwards, and preparing an electronic board provided with a first face and a second face, opposite the first. The electronic board is positioned inside said lateral seat and a polymeric material with high thermal conductivity is then printed on the electronic board so as to cover it. 2. The ignition coil as claimed in claim 1 , wherein the thermal conductivity of said protection element is higher than that of the containment body and is comprised between 0.50 and 5.00 W/mK claim 1 , preferably approximately 2.50 W/mk.4. The ignition coil as claimed in claim 1 , wherein said containment body comprises at least one opening that connects said containment chamber and said lateral seat; said electronic board comprising one or more connectors facing towards said opening to allow the electronic board to come into contact with the electric/electronic means.5. The ignition coil as claimed in claim 4 , wherein said protection element is over-moulded on said electronic board so as to cover the first face thereof and the second face claim 4 , leaving said one or more connectors uncovered.6. The ignition coil as claimed in claim 1 , wherein said protection element comprises a plurality of heat exchange fins that lead off away from said lateral seat to permit the cooling of the electronic board.7. The ignition coil as claimed in claim 1 , wherein the containment body is made of a reinforced polymeric material claim 1 , preferably reinforced with glass fibre.9. The method as claimed in claim 8 , wherein said step of positioning the electronic board is performed by placing the board in the lateral seat in such a way that:the first face faces outwards from the lateral seat;the second face faces a back wall of the lateral seat, spaced apart from it.10. The method as ...

IGNITION DEVICE

An ignition device includes a coil unit and an igniter. The coil unit includes a primary coil and a secondary coil. The primary coil includes a main primary coil and an auxiliary primary coil formed by winding a single primary conductor on a primary bobbin. The secondary coil is formed by winding a secondary conductor on a secondary bobbin. A DC voltage is applied to an intermediate section of the primary conductor between the main primary coil and the auxiliary primary coil. The igniter controls current flowing into the main primary coil or the auxiliary primary coil. The primary bobbin includes a bobbin body and a hooking part protruding from the bobbin body. The main primary coil and the auxiliary primary coil are wound on an outer peripheral surface of the bobbin body to the same direction. A part of the intermediate section is hooked on the hooking part. 1. An ignition device for use in an internal combustion engine comprising:a coil unit with a primary coil, a secondary coil, and an iron core, said primary coil including a main primary coil and an auxiliary primary coil formed by winding a single primary conductor on a primary bobbin, said secondary coil being formed by winding a secondary conductor on a secondary bobbin, said iron core electromagnetically coupling said primary coil and said secondary coil, said coil unit receiving a DC voltage from a power supply at an intermediate section of said primary conductor between said main primary coil and said auxiliary primary coil;a first switch interposed between said main primary coil and the ground and usable for switching between passage and interruption of a primary current flowing from said power supply into said main primary coil;a second switch interposed between said auxiliary primary coil and the ground and usable for switching between passage and interruption of a primary current flowing from said power supply into said auxiliary primary coil; anda controller that controls said first switch and said ...

Igniter assembly and igniter unit

This igniter assembly 220 includes: an igniter 2 provided with a lead terminal 20 ; a body 1 made of resin and storing the igniter 2 ; and an internal terminal 3 fixed to the body 1 and having one end electrically connected to the lead terminal 20 . The internal terminal 3 has another end extending outward of the body 1.

PRIMARY COIL FORMER FOR AN IGNITION COIL, AND IGNITION COIL WITH SUCH A PRIMARY COIL FORMER

A primary coil former for an ignition coil has a winding carrier surface configured for a primary coil wound thereon. Two primary winding stops limit the winding carrier surface at first and second axial ends of the carrier surface, respectively. Two holders are formed at the first axial end, each configured for holding one end of a winding wire. Two deflection domes are formed at the second axial end, one of the domes configured for guiding a winding wire back to the winding carrier surface for a clockwise winding and the other dome configured for guiding a winding wire back to the winding carrier surface for a counterclockwise winding. A groove in the winding carrier surface receives a winding wire which leads from one of the ends of the winding carrier surface up to a gap between the two deflection domes at the opposite end of the winding carrier surface. 1. A primary coil former for an ignition coil , comprising:a winding carrier surface configured to have a primary coil wound thereon;two primary winding stops limiting the winding carrier surface at first and second axial ends of the carrier surface, respectively;two holders arranged next to one another at the first axial end of the winding carrier surface, each holder configured for holding one end of a winding wire;two deflection domes at the second axial end of the carrier surface, one of the domes configured for guiding a winding wire back to the winding carrier surface for a clockwise winding and the other dome configured for guiding a winding wire back to the winding carrier surface for a counterclockwise winding; anda groove in the winding carrier surface, the groove being adapted for receiving a winding wire which leads from one of the ends of the winding carrier surface up to a gap between the two deflection domes at the opposite end of the winding carrier surface.2. The primary coil former according to claim 1 , comprising a third holder configured for a winding wire end claim 1 , said third holder ...

IGNITION COIL

An inventive ignition coil has a transformer that includes a primary coil, a secondary coil and a core formed from stacked metal sheets. A plastic frame holds the sheets. A housing surrounds an interior in which the transformer is arranged and the interior is sealed with an electrically insulating casting compound. The housing comprises an interior wall bounding bounds a compartment in which a part of the core is arranged, the part of the core being outside the primary coil and the secondary coil. 1. An ignition coil , comprising:a transformer having a primary coil, a secondary coil and a core formed from stacked metal sheets;a plastic frame holding the sheets;a housing surrounding an interior in which the transformer is arranged, wherein the interior is sealed with an electrically insulating casting compound; andthe housing comprises an interior wall bounding a compartment in which a part of the core is arranged, said part of the core being outside the primary coil and the secondary coil.2. The ignition coil according to claim 1 , wherein the plastic frame in the compartment covers a side of the core facing towards the primary coil.3. The ignition coil according to claim 2 , wherein the interior wall is arranged between a side of the plastic frame that faces towards the primary coil claim 2 , and the primary coil.4. The ignition coil according to claim 3 , wherein the plastic frame has claim 3 , on a rear side thereof facing towards the primary coil claim 3 , a recess with which the interior wall engages.5. The ignition coil according to claim 1 , wherein the casting compound fills a gap between the interior wall and the plastic frame.6. The ignition coil according to claim 5 , wherein the gap has an L-shaped profile.7. An ignition coil claim 5 , comprising:a transformer having a primary coil, a secondary coil and a core formed from stacked metal sheets;a plastic frame, holding the sheets;a housing surrounding an interior in which the transformer is arranged, ...

Ignition Coil for Internal Combustion Engine

An ignition coil for an internal combustion engine includes an iron core, a primary coil disposed around the iron core, a secondary coil disposed around the primary coil, and an insulating portion sealing the iron core, the primary coil, and the secondary coil. The insulating portion includes a resin and a linear aliphatic group-containing organic substance, and has a sea-island structure in which the organic substance is dispersed in a matrix of the resin. 1. An ignition coil for an internal combustion engine , comprising:an iron core;a primary coil disposed around the iron core;a secondary coil disposed around the primary coil; andan insulating portion sealing the iron core, the primary coil, and the secondary coil, whereinthe insulating portion includes a resin and a linear aliphatic group-containing organic substance, and has a sea-island structure in which the organic substance is dispersed in a matrix of the resin.2. The ignition coil for an internal combustion engine according to claim 1 , whereinthe insulating portion contains amine.3. The ignition coil for an internal combustion engine according to claim 2 , whereinthe organic substance has an amino group.4. An ignition coil for an internal combustion engine according to claim 1 , whereinthe insulating portion contains an inorganic filler.5. The ignition coil for an internal combustion engine according to claim 4 , whereinthe inorganic filler contains aluminum hydroxide or silica.6. The ignition coil for an internal combustion engine according to claim 4 , whereinthe inorganic filler contains a layered silicate.7. The ignition coil for an internal combustion engine according to claim 1 , whereinthe linear aliphatic group of the organic substance has 10 or more and 20 or less carbon atoms.8. The ignition coil for an internal combustion engine according to claim 1 , whereinthe organic substance has a particle diameter of 5 to 100 nm. The present application claims priority from Japanese Patent application ...

IGNITION COIL MOUNT FOR REDUCED VIBRATION

An assembly for an engine includes an ignition coil, a fastener, a spring member, and a resilient damper member. The ignition coil includes a main body and a mounting flange. The mounting flange defines a flange bore. The fastener includes a shaft and a head. The head extends radially outward from a first end portion of the shaft. The shaft extends through the flange bore such that a second end portion of the shaft protrudes from the flange bore. The second end portion of the shaft is threaded. The spring member is disposed about the first end portion of the shaft axially between the head and the mounting flange and biases the mounting flange axially away from the head. The resilient damper member is disposed about the shaft and configured to axially separate the mounting flange from an engine component to which the fastener couples the mounting flange. 1. An assembly for an engine comprising:an ignition coil including a main body and a mounting flange, the mounting flange defining a flange bore;a fastener including a shaft and a head, the head extending radially outward from a first end portion of the shaft, the shaft extending through the flange bore such that a second end portion of the shaft protrudes from the flange bore, the second end portion of the shaft being threaded;a spring member disposed about the first end portion of the shaft axially between the head and the mounting flange and biasing the mounting flange axially away from the head; anda resilient damper member disposed about the shaft and configured to axially separate the mounting flange from an engine component to which the fastener couples the mounting flange.2. The assembly according to further comprising a bush disposed within the flange bore and disposed about the shaft.3. The assembly according to claim 2 , wherein the bush includes a cylindrical body and a bush flange that extends radially outward from the cylindrical body.4. The assembly according to claim 3 , wherein the spring member ...

IGNITION COIL FOR INTERNAL COMBUSTION ENGINE AND MANUFACTURING METHOD THEREOF

A first filler resin is disposed to cover at least an outer peripheral side of a secondary spool and a secondary coil. The second filler resin is filled inside a case and seals a cover sealant which includes a primary coil, secondary spool, a secondary coil, a center core, an outer core and the first filler resin. The connector protrudes to an outside of the case. The case has a fixing portion. The second filler resin has a lower elasticity than the first filler resin. The ignition coil is manufactured by filling the first resin inside the case, and filling the second resin after the first resin is cured. 1. An ignition coil for an internal combustion engine comprising:a primary coil;a secondary coil which is wound around a secondary spool being disposed on an outer peripheral side of the primary coil;a center core which is disposed on an inner peripheral side of the primary coil and the secondary coil;an outer core which is disposed on an outer peripheral side of the primary coil and the secondary coil;a high voltage output section outputting a voltage from the secondary coil to an outside and having conductivity; anda case accommodating the primary coil, the secondary coil, the secondary spool, the center core, the outer core and the high voltage output section,a first filler resin which is filled in parts of an inside of the case, and covers at least the outer peripheral side of the secondary coil that is wound around the secondary spool;a cover sealant which includes the primary coil, the secondary spool, the secondary coil, the center core and the first filler resin;a second filler resin which is filled inside the case and seals the cover sealant; anda connector protruding towards an outside of the case, wherein,the case includes a fixing portion being fixed to an internal combustion engine, and the second filler resin covers the outer core and has a lower elasticity than the first filler resin.2. The ignition coil for an internal combustion engine according to ...

Methods and apparatus for an ignition system

Various embodiments of the present technology comprise a method and apparatus for an ignition system. In various embodiments, the ignition system activates a soft shutdown of an ignition coil in the event of an over dwell condition. The apparatus comprises a first counter and a second counter that are selectively activated at predetermined events. An output of the second counter controls the value of a reference current that decreases linearly over time and wherein a rate of change of the reference current may be adjusted according to a frequency of a clock signal. In various embodiments, the soft shutdown operates independent of the supply voltage and temperature.

IGNITION COIL FOR INTERNAL COMBUSTION ENGINE

An ignition coil for an internal combustion engine includes a wire-wound resistor. The wire-wound resistor includes a core material, a conductor winding, a pair of metal caps disposed at both ends of the core material, the pair of metal caps in contact with the conductor winding, and a resin coating material disposed so as to be in close contact with the core material and the conductor winding. The resin coating material is filled between the conductive winding and the resin coating material is formed to cover the conductor winding from an outer peripheral side of the conductor winding The metal cap includes a bottom portion and a cylindrical side portion. An inner peripheral side of the side portion is provide with ridges projecting internally formed along a direction crossing a winding direction of the conductor winding. 1. An ignition coil for an internal combustion engine comprising:a coil body formed by accommodating a primary coil and a secondary coil within a body case having an insulating property;a high-voltage tower formed by disposing a high-voltage output terminal that is electrically connected to the secondary coil as well as projecting from the coil body towards a tip side of the coil body inside the high-voltage tower; anda wire-wound resistor constituting at least a part of a conductive path from the high-voltage output terminal to a spark plug; wherein,the wire-wound resistor includes an insulating core material, a conductor winding wound spirally on an outer periphery of the core material, a pair of metal caps disposed at both ends in an axial direction of the core material, the pair of metal caps contacting with the conductor winding, and a resin coating material disposed so as to be in close contact with the core material and the conductor winding;the resin coating material is filled between the conductive winding in the axial direction and the resin coating material is formed to cover the conductor winding from an outer peripheral side of the ...

IGNITION COIL

An ignition coil has primary and secondary coils, a central core and a pair of split cores. One of the split cores has a first opposing face orthogonal to a coil axial direction X facing a core front end face of the central core in the coil axial direction X. The respective split cores have second opposing surfaces mutually facing each other in a lateral direction Y at a rear end of the central core. At least one of the second opposing surfaces and one of rear end surfaces of the central core contacting the least one of the second opposing surfaces collectively constitute a pair of oblique surfaces and come to close to the other one of the second opposing surfaces in the lateral direction Y as a portion of each of the oblique surfaces recedes further from the first opposing face in the coil axial direction X. 1. An ignition coil comprising:a primary coil;a secondary coil magnetically coupled to the primary coil, the secondary coil coaxially wound radially outside of the primary coil;a central core disposed radially inside of the primary coil with both ends projecting from both of the primary coil and the secondary coil in a coil axial direction, a central core front end face at a front end thereof facing forward in the coil axial direction, and', 'a pair of central core rear end oblique surfaces at a rear end thereof, the pair of central core rear end oblique surfaces being symmetrically inclined with a central axis of the central core; and, 'the central core havinga pair of split cores surrounding the primary coil and the secondary coil together with the central core,the pair of split cores respectively facing outer peripheral portions of the secondary coil in an orthogonal direction orthogonal to the coil axial direction,the pair of split cores respectively forming two closed magnetic paths with the central core,at least one of the pair of the split cores having a first opposing face to face the central core front end face and partially form the closed magnetic ...

METHOD OF MANUFACTURING AN IGNITION COIL ASSEMBLY

A method of assembling the ignition coil assembly including a first spool, a first coil, and a second spool. The first coil is wound around a first spool outer surface. The first spool and the first coil are disposed within a cavity of the second spool and an electrically insulating material injected into an annular space defined between a first coil outer surface and a second spool inner surface. The first spool is configured to allow a decrease of a circumference of the first spool when the first coil is wound around an outer surface of the first spool. Decreasing the circumference of the first spool increases the annular space sufficient to inject the electrically insulating material into the annular space without creating substantial voids in the electrically insulating material. 1. A method for assembling an ignition coil assembly , comprising:providing a first spool;inserting a magnetic core within a cavity defined by the first spool;winding a first coil around a first spool outer surface;providing a second spool;inserting the first spool and the first coil within a cavity defined by the second spool; andinjecting an electrically insulating material into an annular space defined between a first coil outer surface and a second spool inner surface,wherein the step of providing the first spool includes configuring the first spool such that when the step of winding the first coil is performed, the annular space between the first coil outer surface and the second spool inner surface is sufficient to inject the electrically insulating material without creating substantial voids in the electrically insulating material.2. The method of claim 1 , further comprising the step of providing a slot configured to allow a first spool circumference to decrease when the first coil is wound around the first spool outer surface.3. The method of claim 2 , wherein the slot defines a closed end.4. The method of claim 3 , wherein the slot defines a V-shape at the closed end.5. The ...

IGNITION DEVICE

An ignition device includes a case having an opening and a bottom wall, a coil bobbin arranged in the case having a through hole, a first end and a second end, an ignition coil wound around the coil bobbin, a core made of magnetic material and projecting from the opening and from the bottom wall, and extending through the coil bobbin, a retainer having a ring portion and multiple leg portions extending from the ring, and a filling resin in the case. The core extends through the ring portion and the leg portions extend in between an inner surface of the coil bobbin and an outer peripheral surface of the core toward the bottom wall, and the case is filled with the filling resin in a manner that at least a part of the ring portion is not covered by the resin. 1. An ignition device , comprising:a case having an opening and a bottom wall opposite to the opening;a coil bobbin arranged in the case having a through hole, a first end and a second end with the first end closer to the opening than the second end;an ignition coil wound around the coil bobbin;a core made of magnetic material and projecting from the opening and from the bottom wall, and the core extends through the coil bobbin;a retainer having a ring portion and multiple leg portions extending from the ring; anda filling resin in the case, wherein the ring portion is arranged adjacent to the first end of the coil bobbin, and the core extends through the ring portion, wherein the leg portions extend in between an inner surface of the through hole of the coil bobbin and an outer peripheral surface of the core toward the bottom wall along the center core, and wherein the case is filled with the filling resin in a manner that at least a part of the ring portion opposite to the leg portions is not covered by the resin.2. The ignition device of claim 1 , wherein the core is formed in a polygonal column shape claim 1 , and wherein the leg portions of the retainer each extend along a respective one of the corners of the ...

IGNITION COIL

An ignition coil, including: a center core; a primary coil wound around the center core; a secondary coil wound around the primary coil; a side core, which is arranged around the secondary coil, and is coupled to the center core to from a closed magnetic path; a case configured to accommodate the center core, the primary coil, the secondary coil, and the side core; and an insulating resin filled in the case, wherein the side core includes a wide portion having a larger width in a direction from the center core to the side core, and a narrow portion having a smaller width than the wide portion, and wherein the narrow portion is formed on a high-voltage side of the side core. 17-. (canceled)8. An ignition coil , comprising:a center core;a primary coil wound around the center core;a secondary coil wound around the primary coil;a side core, which is arranged around the secondary coil, and is coupled to the center core to form a closed magnetic path;a case configured to accommodate the center core, the primary coil, the secondary coil, and the side core; andan insulating resin filled in the case,wherein the side core includes a wide portion having a larger width in a direction from the center core to the side core, and a narrow portion having a smaller width than the wide portion, andwherein the narrow portion is formed on a high-voltage side of the side core.9. The ignition coil according to claim 8 , wherein the insulating resin is filled between a surface of the narrow portion claim 8 , which is opposed to the case claim 8 , and the case.10. The ignition coil according to claim 8 ,wherein a surface of the side core, which is opposed to the secondary coil, and a surface of the side core, which is opposed to the secondary coil are coated with an elastomer material, andwherein the elastomer material is coated around the narrow portion of the side core.11. The ignition coil according to claim 8 ,wherein the side core is formed of a plurality of laminated magnetic steel ...

IGNITION COIL

An ignition coil includes a primary coil, a secondary coil, a center core, a magnet body and an outer peripheral core. The outer peripheral core is provided with a first opposite side, a second opposite side and a coupling side, the first opposite side facing the magnet body from an opposite side of the center core, the second opposite side facing the center core from the opposite side of the magnet body, the coupling side coupling the first opposite side with the second opposite side. The center core has a magnet side flange portion disposed at an end portion in a magnet body side, protruding in a protrusion direction. A thick portion is formed at both of a part of the first opposite side and a part of the coupling side, and a thickness of the thick portion being larger than a minimum thickness of the second opposite side. 2. The ignition coil according to claim 1 , whereina concave portion is provided at a surface of the second opposite side, the surface of the second opposite side being opposite to the center core;the concave portion is disposed at a portion overlapping with a surface of the center core in the second opposite side with respect to the coil axial direction; andan end portion of the center core which opposes the magnet body has an anti-magnet side flange portion protruding outside the concave portion in a direction orthogonal to the coil axial direction.3. The ignition coil according to claim 2 , whereinthe ignition coil further comprising a secondary spool in which the secondary coil is wound around; anda region where the anti-magnet side flange portion of the center core in the coil axial direction is present is formed to be accommodated within an inner peripheral side of the secondary spool when viewed in the coil axial direction.4. The ignition coil according to claim 2 , whereinthe outer peripheral core is formed annularly having a pair of the coupling sides, and configured by a combination of a first divided core provided with the first ...

IGNITION COIL

An ignition coil includes a center core, a first core member, and a second core member. The first core member includes a first core-facing portion facing a front core surface of the center core and a first core side portion extending rearward from the first core-facing portion. The second core member includes a second core-facing portion facing a rear core surface of the center core and a second core side portion extending frontward from the second core-facing portion. The first core-facing portion has an end surface contacting a portion of the second core side portion to create a first contact region. Similarly, the second core-facing portion has an end surface contacting a portion of the first core side portion to create a second contact region. The first and second contact regions are shaped to approach frontward close to the first core side portion. This structure enhances productivity of the ignition coil. 1. An ignition coil comprising:a primary coil and a secondary coil which are magnetically coupled with each other;a center core which is disposed inside inner peripheries of the primary coil and the secondary coil, the center core having a first surface and a second surface aligned with the first surface in an axial direction of the primary and the secondary coils;a first core member which includes a first core-facing portion and a first core side portion, the first core-facing portion faces the first surface of the center core, the first core side portion extending from the first core-facing portion in a first axial direction defined to be opposite a second axial direction along the axial direction of the primary and secondary coils, the first core member being arranged outside outer peripheries of the primary coil and the secondary coil; anda second core member which includes a second core-facing portion and a second core side portion, the second core-facing portion facing the second surface of the center core, the second core side portion extending from ...

COIL SECURE BRACKET SYSTEM AND METHOD

A coil secure bracket system including a bracket assembly, a plurality of threaded-studs to removably couple to the bracket assembly via a plurality of first-machined-holes in the bracket assembly, and to an engine valve cover. Also included is a plurality of nuts configured to coupled to the bracket assembly by the plurality of threaded-studs, a plurality of set-screws to removably couple to the bracket assembly via the plurality of second-threaded-holes to hold the engine ignition coils to the engine, a plurality of jam-nuts removably coupled to the set-screws to maintain the set-screws in the bracket assembly. The coil secure bracket system is useful for securing engine ignition coils to the engine when the exiting fastening means has become damaged such that a replacement of engine valve covers may be required. 1. A coil secure bracket system , the system comprising:a bracket assembly including a top-face, a bottom-face, an exterior-edge, plurality of first-machined-holes, and a plurality of second-threaded-holes;a plurality of threaded-studs configured to be removably coupleable to the bracket assembly via the plurality of first-machined-holes and a plurality of nuts, and to an engine valve cover via composite bosses existing in the engine valve cover, each threaded-stud including a top thread and a bottom thread;said plurality of nuts configured to removably couple the bracket assembly to the plurality of threaded-studs;a plurality of set-screws removably coupleable to the bracket assembly via the plurality of second-threaded-holes to maintain the plurality of engine ignition coils upon the engine; anda plurality of jam-nuts removably coupleable to the plurality of set-screws configured to maintain the set-screws in a desired position within the bracket assembly.2. The coil secure bracket system of claim 1 , wherein the coil secure bracket system further includes a plurality of spacers configured to fit between the bottom thread of the threaded-stud and the ...

Ignition Apparatus Having a Spring for Electrically Connecting a Spark Plug

An ignition apparatus for an internal combustion engine includes a spark plug, an ignition coil with a voltage connection, and a spring for electrically connecting the spark plug to the voltage connection. A continuous spring wire in the form of external turns extends from an ignition coil-side end of the spring to a spark plug-side end of the spring. The spring wire at the spark plug-side end continues in the form of internal turns within the external turns in a direction toward the ignition coil-side end. 1. An ignition apparatus for an internal combustion engine , comprising:a spark plug;an ignition coil with a voltage connection; anda spring for electrically connecting the spark plug to the voltage connection, whereina continuous spring wire of the spring in the form of external turns extends from an ignition coil-side end of the spring to a spark plug-side end of the spring, andthe continuous spring wire at the spark plug-side end continues in the form of internal turns within the external turns in a direction toward the ignition coil-side end.2. The ignition apparatus as claimed in claim 1 , whereinthe internal turns taper along a longitudinal axis of the spring in a direction away from the spark plug-side end.3. The ignition apparatus as claimed in claim 1 , whereina predominant length of the spring has a substantially cylindrical outer contour.4. The ignition apparatus as claimed in claim 1 , whereinan electrical contact point of the spark plug is placed inside the internal turns and a wire end of the spring wire is further removed from the spark plug-side end of the spring than the electrical contact point.5. The ignition apparatus as claimed in claim 1 , whereinan average distance between adjacent external turns is larger than an average distance between adjacent internal turns.6. A spring for electrically connecting a spark plug to a voltage connection in an ignition apparatus claim 1 , comprising:a continuous spring wire formed with external turns ...

IGNITION COIL ASSSEMBLY WITH EXTENSION FOR ELECTRICAL CONNECTION OF AN IGNITION PLUG

Ignition coil assembly with extension for electrical connection of an ignition plug of an endothermic engine,—wherein said extension () comprises an essentially tubular hollow body (), which is secured to a container containing the electrical/electronic means of the ignition coil for generation of high voltage electrical energy to transmit to an ignition plug for the triggering of sparks secured to the engine block of said engine,—wherein a first end area () of said tubular body is engaged, in a detachable manner, on the free end of said ignition plug, and—wherein electrical connection means (), provided for the transmission of high voltage electrical energy between said electrical/electronic means of the ignition coil and said ignition plug, are contained in said tubular body (). According to the invention, said means for electrical connection () comprise at least one filter means () of the high frequency electromagnetic disturbances produced by the operation of said coil, wherein a winding of electrically conductive wire surrounds a central core () in ferromagnetic material dispersed in a polymer base. 2101026201036102610362020. Ignition coil assembly with extension () for electrical connection according to claim 1 , characterized in that said means for electrical connection (. claim 1 , claim 1 , .) also comprise at least one spring in good electrically conductive material (. claim 1 , .) claim 1 , arranged and electrically connected between said electrically conductive winding of said at least one filter means () and said coil claim 1 , respectively between said electrically conductive winding of said at least one filter means () and said plug.3102020120210261036. Ignition coil assembly with extension () for electrical connection according to claim 2 , characterized in that said at least one filter means () comprises a coupling means (. claim 2 , .) claim 2 , in good electrically conductive material claim 2 , which produces the electromechanical connection of ...

IGNITION COIL

An ignition coil includes a primary coil, a secondary coil, a center core, a side core, a core cover, a case, and an insulating resin. The core cover is formed in a form that covers an inner side face, one thickness direction end face, and an other thickness direction end face of the side core. Wall portions that divide a mass of the insulating resin into portions, or reduce an amount thereof, are provided in the core cover on an aperture portion side of the case, which is the one thickness direction end face side of the side core. 1. An ignition coil , comprising:a primary coil;a secondary coil disposed concentrically on an outer periphery of the primary coil;a center core disposed on an inner periphery of the primary coil;a side core, disposed on an outer periphery of the secondary coil, that causes a magnetic flux of the center core to recur;a core cover that covers an inner side face, one thickness direction end face, and an other thickness direction end face of the side core;a case that houses the primary coil, the secondary coil, the center core, the side core, and the core cover; andan insulating resin that fills a gap inside the case, whereinwall portions that divide a mass of the insulating resin into portions, or reduce an amount thereof, are provided in the core cover on an aperture portion side of the case.2. The ignition coil according to claim 1 , wherein the wall portions are provided along an outer periphery of the side core.3. The ignition coil according to claim 1 , wherein a curved portion is formed in corner portions on an inner side and an outer side of the wall portions positioned on the one thickness direction end face of the side core.4. The ignition coil according to claim 3 , wherein curved portions of differing sizes are provided in opposing corner portions of the corner portions.5. The ignition coil according to claim 1 , wherein the core cover is formed of a material that easily peels away from the insulating resin.6. The ignition coil ...

Internal Combustion Engine Ignition Coil and Method for Manufacturing Internal Combustion Engine Ignition Coil

An internal combustion engine ignition coil according to the present invention includes: a central iron core; a primary coil disposed on an outer circumference of the central iron core; a secondary coil disposed on an outer circumference of the primary coil; a side iron core disposed on an outer circumference of the secondary coil; and an insulating material sealing the central iron core, the primary coil, and the secondary coil on an inner side of the side iron core. A first layered silicate having a particle diameter less than a winding diameter of the secondary coil is present at a higher concentration in a vicinity of the secondary coil than that in a vicinity of the side iron core in the insulating material. A second layered silicate having a particle diameter greater than the winding diameter of the secondary coil is present at a higher concentration than that of the first layered silicate between the outer circumference side of the secondary coil and the side iron core. The second layered silicate has an aspect ratio of 50 or more, the aspect ratio being a ratio of a long side of a particle of the layered silicate to a thickness of the particle. 1. An internal combustion engine ignition coil comprising:a central iron core;a primary coil disposed on an outer circumference of the central iron core;a secondary coil disposed on an outer circumference of the primary coil;a side iron core disposed on an outer circumference of the secondary coil; andan insulating material sealing the central iron core, the primary coil, and the secondary coil on an inner side of the side iron core, whereina first layered silicate having a particle diameter less than a winding diameter of the secondary coil is present at a higher concentration in a vicinity of the secondary coil than that in a vicinity of the side iron core in the insulating material,a second layered silicate having a particle diameter greater than the winding diameter of the secondary coil is present at a higher ...

AUTOMOTIVE IGNITION COIL HAVING A CORE WITH AT LEAST ONE EMBEDDED PERMANENT MAGNET

In a spark plug ignition assembly for a spark plug, an ignition coil assembly has a steel laminated core, said core having a first core portion and a second core portion, and a primary winding around the first core portion and a secondary winding around the primary winding. A spark plug connecting member is provided for connecting the coil assembly to the spark plug. At least one of the first and second core portions has a slot therein with a magnet located in the slot. 1. A spark plug ignition assembly for a spark plug , comprising:an ignition coil assembly comprising a steel laminated core, said core having a first core portion and a second core portion having first and second legs, and a primary winding around the first core portion and a secondary winding around the primary winding;a spark plug connecting member for connecting the coil assembly to the spark plug; andthe second core portion having a slot in one of said first and second legs adjacent an end face thereof with a magnet located in the slot.2. The assembly of wherein the slot is rectangular and extends completely through the core portion claim 1 , and the magnet being rectangular and substantially completely filling the slot so that the magnet extends from one face to an opposite face of the core portion.3. The assembly of wherein the first core portion comprises an I-shaped core portion having said primary and secondary windings around it claim 1 , the second core portion comprises a C-shaped core portion claim 1 , said C-shaped core portion having first and second legs and an intermediate part connecting and between the first and second legs claim 1 , and end faces of the first and second legs abutting against a side of the I-shaped core portion.4. The assembly of wherein at least one of the legs of the C-shaped core portion is widened progressively towards said end face of the leg and said slot with said magnet is located in said widened portion of said leg and has a longitudinal extent parallel to ...

IGNITION COIL FOR INTERNAL COMBUSTION ENGINE

An ignition coil for an internal combustion engine includes: a center core arranged on an inner sides of a primary coil and a secondary coil; a side core arranged on an outer sides of the primary and secondary coils, and combined with the center core to form a closed magnetic circuit; one or a plurality of gaps provided between the center core and the side core, or in the side core; and a magnet arranged in each of the one or a plurality of gaps, in which a sum of cross-sectional areas of the one or a plurality of gaps is set to be 200 to 500 times of an average value of thicknesses of the one or a plurality of gaps, and a reverse bias equal to or more than a saturation magnetic flux density of the center core is applied by the magnet. 110-. (canceled)11. An ignition coil for an internal combustion engine , comprising:a center core arranged on an inner side of a primary coil and an inner side of a secondary coil;a side core arranged on an outer side of the primary coil and an outer side of the secondary coil, and combined with the center core to form a closed magnetic circuit;one or a plurality of gaps provided between the center core and the side core, or in the side core; anda magnet arranged in each of the one or a plurality of gaps,wherein a sum of cross-sectional areas of the one or a plurality of gaps is set to be 200 times or more and 500 times or less of an average value of thicknesses of the one or a plurality of gaps, andwherein a reverse bias equal to or more than a saturation magnetic flux density of the center core is applied by the magnet.12. The ignition coil for an internal combustion engine according to claim 11 ,wherein a sum of cross-sectional areas of the magnets is set to be three times or more and less than seven times of a cross-sectional area of the center core, andwherein the cross-sectional area of each of the one or a plurality of gaps is set to be equal to or larger than the cross-sectional area of the magnet.13. The ignition coil for an ...

IGNITION COIL FOR INTERNAL COMBUSTION ENGINE

An ignition coil for an internal combustion engine according to the present embodiment includes a primary coil, a secondary coil, a center core, an outer circumferential core, an igniter, a case, a connector unit, and a relay member. The relay member electrically connects the outer circumferential core and a grounding terminal member. The relay member includes: a base portion provided along the rear surface of an engagement wall; a standing portion standing rearward of the base portion; and a curved portion that extends from a rear end of the standing portion in a vertical direction Z orthogonal to a coil axis direction X and is curved to protrude rearward. The base portion is in contact with an inner grounding terminal at one end in the vertical direction Z. The standing portion is provided further outward than the igniter in a horizontal direction Y. The curved portion is elastically deformed and is urged against a front surface of the outer circumferential core. 19-. (canceled)10. An ignition coil for an internal combustion engine comprising:a primary coil wound around a primary spool;a secondary coil wound around a secondary spool provided on an outer circumference side of the primary coil;a center core disposed on an inner circumference side of the primary coil and the secondary coil;an outer circumferential core disposed on the outer circumference side of the primary coil and the secondary coil;an igniter provided on a front side of the center core in a coil axis direction which is a direction of an axis about which the primary coil and the secondary coil are wound;a case which houses the primary coil, the secondary coil, the center core, the outer circumferential core, and the igniter;a connector unit mounted on a front end of the case and including at least a signal terminal member for transmitting a switching signal to the igniter and a grounding terminal member for grounding the igniter; anda relay member that electrically connects the outer ...

IGNITION APPARATUS FOR INTERNAL COMBUSTION ENGINE

An ignition apparatus for an internal combustion engine which is capable of having a high-degree of ignition performance and being reduced in size is provided. The ignition apparatus includes the spark plug mounted in an end of the plug hole formed in the internal combustion engine, the first ignition coil, the second ignition coil, and the control portion. The first ignition coil includes the primary coil and the secondary coil and has a secondary side electrically connected to the spark plug. The second ignition coil includes the primary coil and the secondary coil and is connected to the spark plug in parallel to the first ignition coil. The control portion controls energization of the first ignition coil and the second ignition coil. The secondary voltage developed at the second ignition coil is lower in level than that developed at the first ignition coil. The control portion works to create the secondary voltage at the first ignition coil and then create the secondary voltage at the second ignition coil to have the spark plug continue to discharge. 1. An ignition apparatus for an internal combustion engine comprising:a spark plug which is to be mounted in an end portion of a plug hole formed in an internal combustion engine;a first ignition coil which is equipped with a primary coil and a secondary coil and has a secondary side thereof electrically connected to the spark plug;a second ignition coil which is equipped with a primary coil and a secondary coil and connected to the spark plug in parallel to the first ignition coil; anda control portion which controls energization of the first ignition coil and the second ignition coil,wherein a secondary voltage developed at the second ignition coil is lower than that developed at the first ignition coil,wherein the control portion works to create the secondary voltage at the first ignition coil and then create the secondary voltage at the second ignition coil to have the spark plug continue to discharge.2. An ...

IGNITION COIL FOR AN INTERNAL COMBUSTION ENGINE

An ignition coil is provided with a primary coil, a secondary coil, a center core, and an outer core. The primary coil, secondary coil, the center core, and the outer core are accommodated inside a case, the inside of the case is filled with a resin filler having electrical insulating properties. The case has an opening member which opens to an upper-side of a vertical direction, a side wall section formed by the opening member, and a bottom member covering a lower-side of the side wall section. A circular cover member, formed on the opening member, provided with a through opening which passes through the inner-side of the opening member in the vertical direction. 1. An ignition coil for an internal combustion engine , wherein the ignition coil comprises:a primary coil formed by a primary winding;a secondary coil formed by a secondary winding;a center core inserted at an inner-side of the primary coil and secondary coil;an outer core positioned on an outer peripheral side of the primary coil and the secondary coil;a case accommodating the primary coil, secondary coil the center core and the outer core; anda resin filler provided with electrical insulating properties being filled inside the case;wherein the case is provided with an opening member which opens to an upper-side of a vertical direction; anda side-wall member which surrounds a periphery of the primary coil, the secondary coil, the center core and the outer core;the side wall member has a bottom member covering a lower-side of the side-wall member;the opening member is projected from an inner periphery of the opening member towards an inner-side of the cover and also includes a circular cover member provided with a through openings which passes through the inner-side of the opening member in the vertical direction.2. The ignition coil for an internal combustion engine according to claim 1 , wherein:an oblique surface is formed on at least a portion of a bottom surface of the cover member, the oblique ...

SWITCH APPARATUS AND IGNITION DEVICE

Provided is a switch apparatus including a conductor; a switching device that contacts the conductor on a first surface and switches between a first terminal on the first surface side and a second terminal on a second surface side that is opposite to the first surface; and a control device that contacts the conductor on a third surface and includes a control circuit of the switching device provided on a fourth surface side opposite to the third surface and a first withstand voltage structure that protects the control circuit from excessive voltage added to the conductor. By providing the withstand voltage structure in the control device, it is possible to protect the control circuit.

SPARK PLUG FOR INTERNAL COMBUSTION ENGINE AND METHOD OF MANUFACTURING THE SAME

In a spark plug, a center electrode includes a base member and a discharge chip that has a higher melting point than the base member. The base member and the discharge chip are joined to each other by both a weld and a diffusion layer. The weld is formed, by fusion welding, along an outer periphery of an interface between the base member and the discharge chip into an annular shape. The weld is made up of those parts of the base member and the discharge chip which are molten and mixed together during the fusion welding and solidified after the fusion welding. The diffusion layer is formed radially inside the annular weld. The diffusion layer is made up of those parts of the base member and the discharge chip which are diffused into each other across the interface between the base member and the discharge chip. 1. A spark plug for an internal combustion engine , the spark plug comprising:a ground electrode; anda center electrode including a base member and a discharge chip that is joined to a distal end of the base member to face the ground electrode through a spark gap formed therebetween, the discharge chip having a higher melting point than the base member,whereinthe base member and the discharge chip of the center electrode are joined to each other by both a weld and a diffusion layer,the weld is formed, by fusion welding, along an outer periphery of an interface between the base member and the discharge chip into an annular shape, the weld being made up of those parts of the base member and the discharge chip which are molten and mixed together during the fusion welding and solidified after the fusion welding, andthe diffusion layer is formed radially inside the annular weld, the diffusion layer being made up of those parts of the base member and the discharge chip which are diffused into each other across the interface between the base member and the discharge chip.2. The spark plug as set forth in claim 1 , wherein the diffusion layer is a first diffusion ...

PLASMA GENERATOR AND INTERNAL COMBUSTION ENGINE

Plasma generator has an ignition coil for supplying a discharge voltage, an electromagnetic wave oscillator that generates electromagnetic waves, a mixer that mixes energy for discharge with electromagnetic wave energy, and an ignition plug that causes a discharge and introduces the electromagnetic wave energy to a reaction region. The discharge and electromagnetic wave energy are used together in the reaction region, wherein a combustion reaction or plasma reaction is carried out, triggering a combustion reaction or plasma reaction. Part of a member that constitutes the ignition plug is used as part of a member that forms the mixer. 1. A plasma generator comprising:an ignition coil for supplying a discharge voltage;an EM-wave oscillator for oscillating EM waves;a mixer for mixing an energy for discharge and an EM wave energy; anda ignition plug that causes discharge and for introducing the EM wave energy to a reaction region where a combustion reaction or a plasma reaction is carried out, whereinthe plasma generator initiates the combustion reaction and the plasma reaction in the reaction region using energies of discharge and EM waves, andpart of a component constituting the ignition plug is used as a part that forms the mixer.2. The plasma generator as claimed in claim 1 , whereinthe part of a component constituting the ignition plug is an insulator part of the ignition plug, a center electrode, or a terminal.3. The plasma generator as claimed in claim 1 , whereinthe mixer employs a capacitive coupling or a combination of capacitive coupling and inductive coupling.4. The plasma generator as claimed in claim 1 , whereinthe capacitive coupling includes a capacitor configured by tip part of a tubular transmission path of the mixer connected to the EM wave oscillator and a center electrode of the ignition plug.5. The plasma generator as claimed in claim 1 , whereina resonator for preventing EM wave leakage is provided on a circuit connecting the ignition coil and the ...

IGNITION DEVICE

An ignition coil includes a first winding, a second winding, and a third winding. A first switch is electrically connected to the first winding. A battery is electrically connected to the first winding. A booster is electrically connected to the battery. A second switch is electrically connected to the third winding. A drive device drives the first switch and the second switch. The drive device turns the first switch from on-state to off-state to allow a secondary current to flow through the second winding, turns the second switch from off-state to on-state to supply an output of the booster to the third winding, and superimpose a second current to the second winding. When a third winding current becomes equal to or greater than a predetermined value, the booster controls such that power generated by the third winding current and an output voltage of the booster is restricted to constant power. 1. An ignition device comprising:an ignition coil including a first winding, a second winding, and a third winding that are electromagnetically coupled to each other;a first switch electrically connected to a first end of the first winding;a battery electrically connected to a second end of the first winding;a booster including a first end electrically connected to the battery and a second end electrically connected to a first end of the third winding;a second switch electrically connected to a second end of the third winding; anda drive device that drives the first switch and the second switch to turn on and off, whereinthe drive device turns the first switch from on-state to off-state to allow a secondary current to flow through the second winding, and turns the second switch from off-state to on-state to supply an output of the booster to the third winding and superimpose a second current to the second winding, andwhen a third winding current, which flows through the third winding of the ignition coil, becomes equal to or greater than a predetermined value, the booster ...

Internal combustion engine use ignition device

In an internal combustion engine use ignition device includes an ignition coil which has a primary coil and a secondary coil, that are wound around a core, a superimpose circuit which generates an output energy, that is to be superimposed with respect to a secondary current, produced in the secondary coil by the primary coil, a first switch element which is connected to the primary coil and turns on or off of a current to the primary coil, a second switch element which is connected to the superimpose circuit, and stops an operation in a case where the first switch element is turned on, and performs an operation in a case where the first switch element is turned off, and a common input terminal which receives a first driving signal for driving the first switch element and a second driving signal for driving the second switch element.

IGNITION SYSTEM

Provided is an ignition system including: a main primary coil; a sub primary coil; a secondary coil; a control unit configured to: drive a main IC to switch a main primary coil mode from a de-energization mode to an energization mode; stop the drive of the main IC to switch the main primary coil mode from the energization mode to the de-energization mode; drive the sub IC to switch a sub primary coil mode from a de-energization mode to an energization mode; and stop the drive of the sub IC to switch the sub primary coil mode from the energization mode to the de-energization mode; and a detection circuit configured to detect a state of the secondary coil. The ignition system is configured such that the drive of the sub IC is stopped when the state of the secondary coil detected by the detection circuit is a no-current supply state. 1. An ignition system , comprising:a main primary coil configured to generate an energization magnetic flux through current supply, and to generate a de-energization magnetic flux in an opposite direction to a direction of the energization magnetic flux through interruption of the current supply;a main IC configured to switch a main primary coil mode which is a mode of the main primary coil between an energization mode for supplying a current to the main primary coil and a de-energization mode for interrupting the supply of the current to the main primary coil;a sub primary coil configured to generate an additional magnetic flux in the same direction as the direction of the de-energization magnetic flux through current supply;a sub IC configured to switch a sub primary coil mode which is a mode of the sub primary coil between an energization mode for supplying a current to the sub primary coil and a de-energization mode for interrupting the supply of the current to the sub primary coil;a secondary coil configured to magnetically couple to the main primary coil and the sub primary coil, to thereby generate energy;a control unit configured ...

IGNITION APPARATUS FOR INTERNAL COMBUSTION ENGINE

An ignition apparatus for an internal combustion engine includes: a spark plug; a first ignition coil and a second ignition coil; a battery; a booster circuit that boosts a voltage supplied from the battery; a power transistor that conducts and interrupts a primary current flowing to a primary coil included in the first ignition coil; a MOSFET that applies and interrupts the voltage boosted by the booster circuit to a primary coil included in the second ignition coil; and an ECU that starts electric discharge by the spark plug by controlling the power transistor, and repeatedly applies and interrupts the voltage boosted by the booster circuit by the MOSFET so that the electric discharge that is started is maintained. 1. An ignition apparatus for an internal combustion engine comprising:a spark plug that performs electric discharge for igniting a combustible air-fuel mixture inside a combustion chamber of an internal combustion engine;a first ignition coil and a second ignition coil that include a primary coil and a secondary coil and apply a voltage to the spark plug by the secondary coil;a voltage applying means for applying a predetermined voltage to the primary coil included in the first ignition coil;a voltage boosting means for boosting the voltage supplied by the voltage applying means;a first switching element that conducts and interrupts a primary current flowing to the primary coil included in the first ignition coil;a second switching element that applies the voltage boosted by the voltage boosting means to the primary coil included in the second ignition coil;a discharge starting means for starting the electric discharge by the spark plug by controlling the first switching element; anda discharge maintaining means for applying the voltage boosted by the voltage boosting means by the second switching element so that electric discharge is maintained after the discharge starting means starts the electric discharge by the spark plug.2. The ignition apparatus ...

IGNITION COIL BOOST AT LOW RPM

A system and method for enhancing spark generation in an ignition coil of an internal combustion engine at low rotational speeds of the flywheel. The method and system monitor the rotational speed of the flywheel and, when the rotational speed of the flywheel is below a threshold rotational speed, the system and method supplies voltage pulses to the primary winding. The timing of the voltage pulses supplied to the primary winding are triggered off of voltage transitions in pulses induced in the primary winding upon rotation of the flywheel. Once the internal combustion engine has started, the switching device transitions into a second condition to disconnect the electrical storage device from the primary winding. The spark generation system of the present disclosure allows for starting of an internal combustion engine upon slower rope pull starting or upon discharge of a starter battery. 1. A system for enhancing spark generation in an ignition coil of an internal combustion engine including a flywheel that rotates past a primary winding , the system comprising:a controller in communication with the primary winding and operable to determine the rotational speed of the flywheel;a electrical storage device;a switching device positioned between the electrical storage device and the primary winding, wherein the electrical storage device is connected to the primary winding to provide a voltage pulse to the primary winding when the switching device is in a first condition,wherein the controller is operable to transition the switching device between the first condition and a second condition.2. The system of wherein the electrical storage device is a battery.3. The system of further comprising a speed sensing circuit positioned between the primary winding and the controller claim 1 , wherein the speed sensing circuit determines the rotational speed of the flywheel based upon pulses induced by the flywheel.4. The system of wherein the controller causes the switching device ...

SYSTEM AND METHOD FOR BOOSTED NON-LINEAR IGNITION COIL

A system and/or method for a boosted non-linear coil includes an ignition coil including a first primary winding, a second primary winding and a secondary winding. A control circuit connects with the ignition coil, the control circuit including a logic device, a first switch connected with the logic device and the first primary winding and a second switch connected with the logic device and the second primary winding. The logic device controls a determined time for switching the first switch and for switching the second switch. 1. A system for controlling ignition , comprising:an ignition coil including a first primary winding, a second primary winding and a secondary winding;a control circuit connected with the ignition coil, the control circuit including a logic device, a first switch connected with the logic device and the first primary winding and a second switch connected with the logic device and the second primary winding; andwhere the logic device controls a determined time for switching the first switch and for switching the second switch.2. The system for controlling ignition of claim 1 , where the determined time is based on an electronic spark timing signal.3. The system for controlling ignition of claim 2 , where the logic device receives the electronic spark timing signal from an engine control unit.4. The system for controlling ignition of claim 1 , where the logic device receives a current signal from the secondary winding.5. The system for controlling ignition of claim 4 , where the logic device controls a determined time for switching the second switch based on the received current signal.6. The system for controlling ignition of claim 1 , where the logic device provides a delay time between switching the first switch and switching the second switch.7. The system for controlling ignition of claim 1 , where the logic device switching the second switch controls boost.8. The system for controlling ignition of claim 1 , where the logic device controls ...