EP0012784A1 - High-frequency ignition device for internal-combustion engine - Google Patents

High-frequency ignition device for internal-combustion engine Download PDF

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Publication number
EP0012784A1
EP0012784A1 EP78810035A EP78810035A EP0012784A1 EP 0012784 A1 EP0012784 A1 EP 0012784A1 EP 78810035 A EP78810035 A EP 78810035A EP 78810035 A EP78810035 A EP 78810035A EP 0012784 A1 EP0012784 A1 EP 0012784A1
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EP
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Prior art keywords
frequency
electronic
transistor
circuit
ignition device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
EP78810035A
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German (de)
French (fr)
Inventor
Jean-François Tromeur
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SORECO Holding SA
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SORECO Holding SA
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Priority to EP78810035A priority Critical patent/EP0012784A1/en
Publication of EP0012784A1 publication Critical patent/EP0012784A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P15/00—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits
    • F02P15/10—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits having continuous electric sparks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P3/00—Other installations
    • F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
    • F02P3/04—Layout of circuits
    • F02P3/05—Layout of circuits for control of the magnitude of the current in the ignition coil
    • F02P3/051—Opening or closing the primary coil circuit with semiconductor devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P3/00—Other installations
    • F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
    • F02P3/04—Layout of circuits
    • F02P3/055—Layout of circuits with protective means to prevent damage to the circuit, e.g. semiconductor devices or the ignition coil
    • F02P3/0552—Opening or closing the primary coil circuit with semiconductor devices
    • F02P3/0556—Protecting the coil when the engine is stopped

Definitions

  • the present invention relates to an electronic ignition device the purpose of which is to activate combustion by bringing into the combustion chamber a discharge formed of high-frequency ozonizing multi-sparks during the whole time of the opening of the switches thus allowing derive the quintessence of the energy power from the air-petrol mixture considerably reducing fuel consumption and reducing air pollution.
  • Electric ignition systems are already known whose ignition spark between the spark plug electrodes is obtained by the sudden interruption of a direct current in the primary winding of an ignition coil. This system makes it possible to obtain only one spark at a time and therefore combustion takes place in a more or less complete manner.
  • Figure 1 is a general view of the device in section
  • Figure 2 is a block diagram of the electronic module homogeneous of figure 1 is a transformateau largely colould to resist the currents of internal and external fries, it is coated in a solid resin with high insulating power 1 and is enclosed in an aluminum alloy carcass 2 provided with threads to activate its cooling., At the upper part of the assembly is crimped a high insulating output mandrel 3 in which is connected the high-voltage output wire 4.
  • a housing in which is disposed the electronic module 5 fixed to the assembly by the cylindrical aluminum support plate 6 on which the transistors 7 and 8 are mounted, thus allowing optimal heat dissipation.
  • a fitted metal cover 9 protects the transistors against water and hydrocarbon projections, further reinforcing the shielding of the assembly to reduce parasites.
  • connection wires 11 and 12 exit a red wire for the positive supply 12 volts and a black wire going to the switch to which the connector can be connected.
  • wire of the electronic tachometer wire of the electronic tachometer.
  • a green and yellow ground wire 13 makes it possible to connect the metal carcass of the assembly to the ground of the engine.
  • the electronic module object of the invention consists of a high-frequency oscillating circuit operating during all the time opening the contactor or magnetic cell.
  • the high-frequency oscillating circuit consists of a PNP transistor T1 operating as a pilot transistor and an NPN transistor T2 in Darlington circuit operating in switching mode.
  • the pilot transistor T1 is then saturated, becomes conductive, and makes appear at the common point of the resistors R3 and R6 in the collector circuit of the pilot transistor T1, a positive voltage applied to the base of the transistor Darlin - gton which switches and delivers a permanent current in the primary winding of the transformer TR1.
  • the base-emitter voltage of the pilot transistor T1 falls and at the same time the collector current, which blocks the transistor T2.
  • the negative pulse produced by the transformer TR1 at the collector of the transistor T2 is applied to the base of the transistor T1 through a first feedback circuit composed of a resistor R7 and a capacitor C5, which makes the pilot transistor T1 conductive and which allows the unlocking of the Darlington transistor T2.
  • the reaction pulse is finished the transistor T1 is again blocked, which restarts the transistor T2.
  • the circuit oscillates as long as the breaker remains open.
  • the frequency of the oscillating circuit is determined by the values of the first reaction circuit composed of R7 and C5 combined with the values of the second reaction circuit composed of R3, R4, and C4. It is about five kilo - hertz and causes a flash of multi - sparks dissipating a large amount of ozone by candles, activating combustion while reducing atmospheric pollution.
  • a small size magnetic coil B1 has been inserted directly on the printed circuit of the electronic module. This coil is connected between the positive pole B and the output C. It produces the voltage pulses necessary for the proper functioning of the electronic tachometer (RPM).

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

The present invention relates to an electronic ignition device, the purpose of which is to activate combustion by providing in the combustion chamber a discharge formed from ozonising high-frequency multisparks for the entire time of the opening of the breakers, thereby making it possible to extract the quintessential energy capacity of the air/petrol mixture, considerably reducing the fuel consumption and decreasing atmospheric pollution. <IMAGE>

Description

La présente invention a pour objet un dispositif d'allumage électronique dont le but est d'activer la combustion en apportant dans la chambre de combustion une décharge formée de multiétincelles haute-fréquence ozonisantes pendant tout le temps de l'ouverture des rupteurs permettant ainsi de tirer la quintessence du pouvoir énergétique du mélange air-essence réduisant considérablement la consommation du carburant et diminuant la pollution atmosphérique.The present invention relates to an electronic ignition device the purpose of which is to activate combustion by bringing into the combustion chamber a discharge formed of high-frequency ozonizing multi-sparks during the whole time of the opening of the switches thus allowing derive the quintessence of the energy power from the air-petrol mixture considerably reducing fuel consumption and reducing air pollution.

On connait déjà des installations d'allumage électrique dont l'étincelle d'allumage entre les électrodes des bougies est obtenue par l'interruption brusque d'un courant continu dans l'enroulement primaire d'une bobine d'allumage. Ce système permet d'obtenir qu'une seule étincells à la fois et de ce fait la combustion s'éffectue de façon plus ou moins complète.Electric ignition systems are already known whose ignition spark between the spark plug electrodes is obtained by the sudden interruption of a direct current in the primary winding of an ignition coil. This system makes it possible to obtain only one spark at a time and therefore combustion takes place in a more or less complete manner.

La forme d'exécution du dispositif selon l'inventac. est décrite ci-après à l'aide de deux dessins. La figure 1 est une vue générale du dispositif an coupeThe embodiment of the device according to the inventac. is described below using two drawings. Figure 1 is a general view of the device in section

La figure 2 est un schéma de principe du modul électronique

Figure imgb0001
homogène de la figure 1 est un transformateau largement colould pour résister aux courants de frites internes et externes, il est enrobé dans une résine solide à haut pouvoir isolant 1 et est renfermé dans une carcasse en alliage d'aluminium 2 munie d'fillettes pour activer son refroidissement., A la partie supérieure de l'ensemble est serti un mandrin de sortie à haut pouvoir isolant 3 dans lequel est connecté le fil de sortie de la haute-tension 4 .Figure 2 is a block diagram of the electronic module
Figure imgb0001
homogeneous of figure 1 is a transformateau largely colould to resist the currents of internal and external fries, it is coated in a solid resin with high insulating power 1 and is enclosed in an aluminum alloy carcass 2 provided with threads to activate its cooling., At the upper part of the assembly is crimped a high insulating output mandrel 3 in which is connected the high-voltage output wire 4.

A la partie inférieure de la carcasse en aluminium est aménagé un logement dans lequel est disposé le module électronique 5 fixé à l'ensemblre par la plaque support cylindrique en aluminium 6 sur laquelle sont montés les transistors 7 et 8 permettant ainsi une dissipation thermique optimale.At the lower part of the aluminum carcass is housed a housing in which is disposed the electronic module 5 fixed to the assembly by the cylindrical aluminum support plate 6 on which the transistors 7 and 8 are mounted, thus allowing optimal heat dissipation.

Un couvercle métallique emboîtant 9 protège les transistors contre les projections d'eau et d'hydrocarbures renforçant encore le blindage de l'ensemble pour réduire les parasites.A fitted metal cover 9 protects the transistors against water and hydrocarbon projections, further reinforcing the shielding of the assembly to reduce parasites.

Sur la face avant inférieure de l'ensemble se trouve un orifice 10 par lequel sortent deux fils de connexion 11 et 12 un fil rouge pour l'alimen--tation positive 12 volts et un fil noir allant au rupteur sur lequel peut se brancher le fil du compte-tours électronique. Un fil de masse vert et jaune 13 permet de relier la carcasse métallique de l'ensemble à la masse du moteur.On the lower front face of the assembly is an orifice 10 through which two connection wires 11 and 12 exit a red wire for the positive supply 12 volts and a black wire going to the switch to which the connector can be connected. wire of the electronic tachometer. A green and yellow ground wire 13 makes it possible to connect the metal carcass of the assembly to the ground of the engine.

En se référant au schéma de principe de la figure 2 on constate que le module électronique objet de l'invention' consiste en un circuit oscillant haute-fréquence fonctionnant pendant tout le temps d'ouverture du rupteur qu'il soit à contacts ou à cellule magnétique.Referring to the block diagram of Figure 2 we see that the electronic module object of the invention 'consists of a high-frequency oscillating circuit operating during all the time opening the contactor or magnetic cell.

Le circuit oscillant haute-fréquence est constitué d'un transistor PNP T1 fonctionnant comme transistor pilote et d'un transistor NPN T2 en montage Darlington fonctionnant en commutation.The high-frequency oscillating circuit consists of a PNP transistor T1 operating as a pilot transistor and an NPN transistor T2 in Darlington circuit operating in switching mode.

Lorsque le rupteur est fermé et par conséquent à la masse, un courant s'écoule du p8le positif B à travers les circuits D1, R1, R2,D4, provoquant la polarisa--tion de la base du transistor pilote T1. De ce fait le courant de base du transistor T1, peut s'écouler du pôle positif B à travers la diode D1, le transistor T1, la résistance R2 équipé de son condensateur de filtrage C1 monté en parallèle et la diode D4 .When the breaker is closed and consequently to ground, a current flows from the positive pole B through the circuits D1, R1, R2, D4, causing the polarization of the base of the pilot transistor T1. Therefore the base current of the transistor T1, can flow from the positive pole B through the diode D1, the transistor T1, the resistor R2 equipped with its filtering capacitor C1 mounted in parallel and the diode D4.

Le transistor pilote T1 se trouve alors saturé, devient conducteur, et fait apparaitre au point commun des résistances R3 et R6 dans le circuit collecteur du transistor pilote T1, une tension positive appliquée à la base du transistor T2 Darlin--gton qui commute et délivre un courant permanent dans l'enroulement primaire du transformateur TR1.The pilot transistor T1 is then saturated, becomes conductive, and makes appear at the common point of the resistors R3 and R6 in the collector circuit of the pilot transistor T1, a positive voltage applied to the base of the transistor Darlin - gton which switches and delivers a permanent current in the primary winding of the transformer TR1.

Lorsque le rupteur s'ouvre la tension base-émetteur du transistor pilote T1 tombe et en même temps le courant de collecteur, ce qui bloque le transistor T2. De ce fait l'impulsion négative produite par le transformateur TR1 au collecteur du transistor T2 est appliquée à la base du transistor T1 à travers un premier circuit de réaction composé d'une résis--tance R7 et d'un condensateur C5, ce qui rend conducteur le transistor pilote T1 et qui permet le débloquage du transistor Darlington T2. Lorsque l'impulsion de réaction est terminée le transistor T1 est à nouveau bloqué, ce qui rebloque le transistor T2. De ce fait le circuit oscilla aussi longtemps que le rupteur reste ouvert. La fréquence du circuit oscillant est déterminée par les valeurs du premier circuit de réaction composé de R7 et C5 conjuguées aux valeurs du deuxième circuit de réaction composé de R3, R4, et C4. Elle se situe à environ cinq kilo--hertz et provoque une fulguration de multiétincelles dissipant aux bougies une grande quantité d'ozone activant la combustion tout en réduisant la pollution atmosphérique.When the breaker opens, the base-emitter voltage of the pilot transistor T1 falls and at the same time the collector current, which blocks the transistor T2. As a result, the negative pulse produced by the transformer TR1 at the collector of the transistor T2 is applied to the base of the transistor T1 through a first feedback circuit composed of a resistor R7 and a capacitor C5, which makes the pilot transistor T1 conductive and which allows the unlocking of the Darlington transistor T2. When the reaction pulse is finished the transistor T1 is again blocked, which restarts the transistor T2. As a result, the circuit oscillates as long as the breaker remains open. The frequency of the oscillating circuit is determined by the values of the first reaction circuit composed of R7 and C5 combined with the values of the second reaction circuit composed of R3, R4, and C4. It is about five kilo - hertz and causes a flash of multi - sparks dissipating a large amount of ozone by candles, activating combustion while reducing atmospheric pollution.

Différentes protections ont été insérées dans les circuits suivants :

  • 1°- deux diodes D1 et D4 évitent les risques d'inversion de polarité au montage
  • 2°- le transistor de puissance T2 est protégé contre les surtensions par deux diodes zéner D5 et D6
  • 3°- les condensateurs C2, C3, C4, la diode D3, la résistance R5 protègent les différents circuits
  • 4°- le thermistor PTC R3 en série avec la résistance R4 protège le circuit en cas d'oubli du contact enclanché avec le moteur arrêté. Sa résistance augmente brusquement lorsque la température atteint une valeur maximum admissible.
Different protections have been inserted in the following circuits:
  • 1 ° - two diodes D1 and D4 avoid the risks of reverse polarity during assembly
  • 2 ° - the power transistor T2 is protected against overvoltages by two zener diodes D5 and D6
  • 3 ° - the capacitors C2, C3, C4, the diode D3, the resistor R5 protect the different circuits
  • 4 ° - the PTC R3 thermistor in series with the R4 resistor protects the circuit in the event of forgetting the contact engaged with the engine stopped. Its resistance increases suddenly when the temperature reaches a maximum admissible value.

Pour permettre l'adaptation des compte-tours électro--niques il a été inséré une bobine à noyeau magnétique B1 de petite taille placée directement sur le circuit imprimé du module électronique. Cette bobine est connectée entre le pôle positif B et la sortie C . Elle produit les impulsions de tension nécessaires au bon fonctionnement des compte-tours électroniques (RPM).To allow the adaptation of the electronic tachometer, a small size magnetic coil B1 has been inserted directly on the printed circuit of the electronic module. This coil is connected between the positive pole B and the output C. It produces the voltage pulses necessary for the proper functioning of the electronic tachometer (RPM).

Claims (6)

1. Dispositif d'allumage électronique haute-fréquence caractérisé par le fait qu'il comprend un module électronique composé d'un circuit oscillant, deux circuits de réaction, un thermistor de régulation, un adaptateur de compte-tours électronique, le tout renfermé dans une carcasse blindée activant le dépa--rasitage.1. High-frequency electronic ignition device characterized in that it comprises an electronic module composed of an oscillating circuit, two reaction circuits, a regulating thermistor, an electronic tachometer adapter, all enclosed in an armored carcass activating the dewaxing. 2. Dispositif selon la revendication 1 caractérisé par le fait que le circuit oscillant produisant la haute-fréquence sous la forme de' multiétincelles pendant tout le temps de l'ouverture du rupteur.2. Device according to claim 1 characterized in that the oscillating circuit producing the high-frequency in the form of 'multi-sparks during the whole time of the opening of the breaker. 3. Dispositif selon la revendication 2 caractérisé par le fait que le dit oscillateur haute-fréquence se compose d'un transistor pilote PNP et d'un circuit transistor NPN en montage Darlington, et de deux circuits de réaction entre ces deux transistors.3. Device according to claim 2 characterized in that said high-frequency oscillator consists of a PNP pilot transistor and an NPN transistor circuit in Darlington mounting, and two feedback circuits between these two transistors. 4. Dispositif selon la revendication 3 caractérisé par le fait que les deux circuits de réaction sont composés de R7 etC5 ainsi que de R3, R4, et C4 déter--minant la fréquence d'oscillation à environ cinq kilohertz.4. Device according to claim 3 characterized in that the two reaction circuits are composed of R7 and C5 as well as R3, R4, and C4 determining - minating the oscillation frequency at about five kilohertz. 5. Dispositif selon la revendication 1 caractérisé par le fait qu'un thermistor PTC R3 en série avec R4 limite et régule le courant en cas .de surchauffe interne préalablement déterminée.5. Device according to claim 1 characterized in that a PTC thermistor R3 in series with R4 limits and regulates the current in the event of a predetermined internal overheating. 6. Dispositif selon la revendication 1 caractérisé par le fait qu'une bobine B1 à noyeau magnétique insérée au module électronique dans le circuit B et C produit des impulsions de tension nécessaires au bon fonctionnement des compte-tours électroniques.6. Device according to claim 1 characterized in that a coil B1 with magnetic core inserted into the electronic module in the circuit B and C produces voltage pulses necessary for the proper functioning of the electronic tachometer.
EP78810035A 1978-12-27 1978-12-27 High-frequency ignition device for internal-combustion engine Withdrawn EP0012784A1 (en)

Priority Applications (1)

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EP78810035A EP0012784A1 (en) 1978-12-27 1978-12-27 High-frequency ignition device for internal-combustion engine

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EP78810035A EP0012784A1 (en) 1978-12-27 1978-12-27 High-frequency ignition device for internal-combustion engine

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0137939A2 (en) * 1983-09-02 1985-04-24 Robert Bosch Gmbh Method and device for-igniting inflammable mixtures
GB2184782A (en) * 1985-12-19 1987-07-01 Dawson Royalties Ltd Ignition systems for internal combustion engines
GB2235015A (en) * 1989-05-23 1991-02-20 Constantin Tanasov Engine multiple spark ignition circuit
EP0529735A1 (en) * 1991-08-28 1993-03-03 Philips Composants Et Semiconducteurs Ignition device for an internal combustion engine
EP0859911A1 (en) * 1995-10-23 1998-08-26 Lulu Trust Corona generator system for fuel engines
ITMI20131189A1 (en) * 2013-07-16 2015-01-17 Eldor Corp Spa ELECTRONIC IGNITION SYSTEM FOR AN ENDOTHERMAL ENGINE

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1474995A (en) * 1966-02-17 1967-03-31 G Soc Aries Ab Improvements to the ignition of fuel mixtures and devices including application
US3853106A (en) * 1970-08-27 1974-12-10 Texaco Inc High frequency continuous-wave ignition energy for an internal combustion engine
US3983461A (en) * 1972-08-28 1976-09-28 General Marine, Inc. Ignition pulse generator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1474995A (en) * 1966-02-17 1967-03-31 G Soc Aries Ab Improvements to the ignition of fuel mixtures and devices including application
US3853106A (en) * 1970-08-27 1974-12-10 Texaco Inc High frequency continuous-wave ignition energy for an internal combustion engine
US3983461A (en) * 1972-08-28 1976-09-28 General Marine, Inc. Ignition pulse generator

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ELEKTROTECHNIEK, Vol. 52, No. 9, Juillet 1974, Meppel (NL) "Elektronische ontsteking, toerentalbegrenzing en toerentalmeting van automotoren", page 537 * La figure et le texte en entier * *
SOCIETY OF AUTOMATIVE ENGINEERS publication 750 347 400 Commonwealth Drive, Warrendale Pa 15096 US Automative Engineering Congress Exposition, Detroit (MICH.), 24-28 Fevrier 1975, R.E. CANUP: "The Texaco Ignition System-A New Concept for Automotive Engines" * Le document en entier * *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0137939A2 (en) * 1983-09-02 1985-04-24 Robert Bosch Gmbh Method and device for-igniting inflammable mixtures
EP0137939A3 (en) * 1983-09-02 1986-06-04 Robert Bosch Gmbh Method and device for-igniting inflammable mixtures
GB2184782A (en) * 1985-12-19 1987-07-01 Dawson Royalties Ltd Ignition systems for internal combustion engines
GB2235015A (en) * 1989-05-23 1991-02-20 Constantin Tanasov Engine multiple spark ignition circuit
EP0529735A1 (en) * 1991-08-28 1993-03-03 Philips Composants Et Semiconducteurs Ignition device for an internal combustion engine
FR2680835A1 (en) * 1991-08-28 1993-03-05 Philips Composants DEVICE FOR IGNITING INTERNAL COMBUSTION ENGINES.
EP0859911A1 (en) * 1995-10-23 1998-08-26 Lulu Trust Corona generator system for fuel engines
EP0859911A4 (en) * 1995-10-23 1999-01-07 Lulu Trust Corona generator system for fuel engines
ITMI20131189A1 (en) * 2013-07-16 2015-01-17 Eldor Corp Spa ELECTRONIC IGNITION SYSTEM FOR AN ENDOTHERMAL ENGINE
WO2015008179A1 (en) * 2013-07-16 2015-01-22 Eldor Corporation S.P.A. Electronic ignition system for an endothermic engine

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