EP0502768A1 - Mounting method of a plurality of ignition coils on an engine block and power supply unit for carrying out the method - Google Patents

Mounting method of a plurality of ignition coils on an engine block and power supply unit for carrying out the method Download PDF

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Publication number
EP0502768A1
EP0502768A1 EP92400526A EP92400526A EP0502768A1 EP 0502768 A1 EP0502768 A1 EP 0502768A1 EP 92400526 A EP92400526 A EP 92400526A EP 92400526 A EP92400526 A EP 92400526A EP 0502768 A1 EP0502768 A1 EP 0502768A1
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EP
European Patent Office
Prior art keywords
coils
housing
engine block
connector
housings
Prior art date
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Granted
Application number
EP92400526A
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German (de)
French (fr)
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EP0502768B1 (en
Inventor
Denis Plantin
Pierre Héritier-Best
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Sagem SA
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Sagem Allumage SA
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Publication of EP0502768A1 publication Critical patent/EP0502768A1/en
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Publication of EP0502768B1 publication Critical patent/EP0502768B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • F02P13/00—Sparking plugs structurally combined with other parts of internal-combustion engines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T13/00—Sparking plugs
    • H01T13/40—Sparking plugs structurally combined with other devices
    • H01T13/44—Sparking plugs structurally combined with other devices with transformers, e.g. for high-frequency ignition

Definitions

  • the present invention relates to a method of mounting a plurality of ignition coils on an engine block and a power supply assembly for the implementation of this method.
  • the present invention aims to overcome these drawbacks.
  • the method according to the invention therefore has the advantages of multiple coil arrangements while retaining very great simplicity of assembly.
  • the magnetic circuits of the coils at the periphery of the housings of these coils can also be included in the housing, in the form of inserts.
  • the assembly according to the invention may comprise an electrical supply connector connected by low-voltage wired cables to the primary windings of said coils, said connector also being embedded in the resin.
  • the assembly according to the invention may also include air supply passages to said engine block, the electrical supply connector then being produced in one piece with an air supply connector to said passages.
  • the cabling is preferably arranged in channels limited by ribs of the housing.
  • the secondary winding of each of the coils is connected at each of its ends to a connection pin to one of the spark plugs of the engine .
  • the housing can also include, in the form of inserts arranged on the periphery of the coil housings, the magnetic return circuits of these coils.
  • the housing 1 has, seen from above, an elongated rectangular shape.
  • This box is, in this case, designed to accommodate two coils with two outputs and is therefore intended for a four-cylinder engine.
  • This housing is molded in one piece in an insulating plastic material and includes, embedded in this material plastic, inserts 2 for fixing to the engine block as well as the magnetic circuits 3 of the coils.
  • the housing 1 forms, inside the two magnetic circuits 3, housings 4 for the coils.
  • the housings 4 are connected by a channel 5 delimited by ribs 6 to a housing 7 opening to the outside of the housing, to receive the supply connection connections of the primary windings of the coils.
  • the housings 4 being after assembly of the housing on the engine block located directly above two of the spark plugs of this engine, are connected by channels 8 delimited by ribs 9 to housings 10 which, after assembly of the housing on the engine block , are immediately above the other two candles.
  • pins 11 are arranged at the bottom of the housings 4 and 10 to ensure the electrical connection of the spark plugs of the engine to the ends of the secondary windings of the coils.
  • These coils are composed, in known manner, of a core 13 on which are placed the coil 14 of primary winding and the coil 15 of secondary winding.
  • the primary winding 16 is wound on the bobbin 14 and the secondary winding 17 is wound on the bobbin 15.
  • the coils 12 are placed in the housings 4 so that the cores 13 are opposite the magnetic return circuits 3.
  • a connector 18 is then placed in the housing 7, this connector 18 comprising, formed in one piece, an electrical connector 19 and an air duct 20. After installation, the duct 20 is connected to passages of air 21 intended to bring air to the engine block via openings 22.
  • the electrical connector 19 is connected by low-voltage links 23 to the primary windings 16 of the coils 12 while the ends of the secondary windings 17 of the coils are connected to pins 11.
  • each secondary winding is directly connected to the pin 11 of its housing 4, the other end being connected to a pin of one of the housing 10 by a high-voltage cable 24.
  • the low-voltage supply wires 23 are arranged in the channel 5 and the high-voltage cables 24 are arranged in the channels 8.
  • an electrically insulating resin is poured into the housings 4, 7 and 10 as well as into the channels 5 and 8, thus immobilizing the coils 12 and their wiring as well as the double connector 18.
  • a cover 26 is then mounted on the housing 1 by any suitable means.
  • the assembly thus produced is mounted in a single operation on an engine block using the lugs fixing 27 of the inserts 2. It then suffices to connect the connector 18 to its two respective electrical and air supplies.
  • the invention also applies to an engine comprising a number of cylinders other than four as well as to coils with a single secondary output.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

Method of mounting a plurality of ignition coils (12) on an engine block. <??>According to the invention it comprises the following stages:   - casting in an electrically insulating material a casing (1) forming a plurality of receivers (4) for the said coils and including, in the form of inserts, means (2) of fixing the said casing to the said engine block;   - fitting the said coils in the said receivers;   - wiring the connections (23, 24) to the primary and secondary windings of the said coils;   - pouring an electrically insulating resin (25) into the casing, thereby embedding the said coils and their wiring; and   - fixing the casing onto the said engine block. <IMAGE>

Description

La présente invention concerne un procédé de montage d'une pluralité de bobines d'allumage sur un bloc moteur et un ensemble d'alimentation électrique pour la mise en oeuvre de ce procédé.The present invention relates to a method of mounting a plurality of ignition coils on an engine block and a power supply assembly for the implementation of this method.

Il est déjà connu, dans le but de réduire la longueur des câbles haute-tension entre une bobine d'allumage unique et les différentes bougies d'un moteur à combustion interne, de disposer une bobine individuelle à proximité immédiate de chacune des bougies.It is already known, in order to reduce the length of the high-voltage cables between a single ignition coil and the different spark plugs of an internal combustion engine, to have an individual coil in the immediate vicinity of each of the spark plugs.

Cet agencement présente toutefois l'inconvénient de multiplier le nombre de composants et par conséquent la complexité des opérations de montage.However, this arrangement has the disadvantage of multiplying the number of components and therefore the complexity of the mounting operations.

Il est également connu de n'utiliser qu'une seule bobine pour deux bougies, cette bobine ayant chaque extrémité de son enroulement secondaire connecté à l'une des deux bougies, l'allumage ne se produisant que sur la bougie souhaitée pour des raisons de conductivité électrique des gaz dans les cylindres respectifs.It is also known to use only one coil for two candles, this coil having each end of its secondary winding connected to one of the two candles, ignition only occurring on the desired candle for reasons of electrical conductivity of the gases in the respective cylinders.

Si cet agencement permet effectivement de réduire le nombre de bobines, il n'en simplifie pas pour autant les opérations de montage puisqu'il nécessite des câblages haute tension plus complexes.If this arrangement effectively reduces the number of coils, it does not simplify the assembly operations since it requires more complex high voltage wiring.

La présente invention vise à pallier ces inconvénients.The present invention aims to overcome these drawbacks.

A cet effet, la présente invention a tout d'abord pour objet un procédé de montage d'une pluralité de bobines d'allumage sur un bloc moteur, caractérisé par le fait qu'il comprend les étapes consistant à :

  • mouler dans une matière électriquement isolante un boîtier formant une pluralité de logements pour lesdites bobines et incluant sous forme d'inserts des moyens de fixation dudit boîtier audit bloc moteur;
  • mettre en place lesdites bobines dans lesdits logements;
  • câbler les connections aux circuits primaires et secondaires desdites bobines;
  • couler dans le boîtier une résine électriquement isolante noyant lesdites bobines et leurs câblages; et
  • fixer le boîtier sur ledit bloc moteur.
To this end, the present invention firstly relates to a method of mounting a plurality of ignition coils on an engine block, characterized in that it comprises the steps consisting in:
  • molding in an electrically insulating material a housing forming a plurality of housings for said coils and including in the form of inserts means for fixing said housing to said engine block;
  • placing said coils in said housings;
  • wire the connections to the primary and secondary circuits of said coils;
  • pouring into the housing an electrically insulating resin embedding said coils and their cables; and
  • fix the housing on said engine block.

Plus particulièrement, le procédé selon l'invention peut comprendre les étapes consistant à :

  • monter dans ledit boîtier, préalablement à la mise en place de la résine, un connecteur d'alimentation des enroulements primaires desdites bobines et des broches de connection aux bougies dudit bloc moteur; et
  • câbler les liaisons basse-tension entre ledit connecteur et les enroulements primaires des bobines, d'une part, et les liaisons haute-tension entre les enroulements secondaires des bobines et lesdites broches de connection, d'autre part.
More particularly, the method according to the invention can comprise the steps consisting in:
  • mounting in said housing, prior to the placement of the resin, a power connector for the primary windings of said coils and pins for connection to the spark plugs of said engine block; and
  • wire the low-voltage connections between said connector and the primary windings of the coils, on the one hand, and the high-voltage connections between the secondary windings of the coils and said connection pins, on the other hand.

Grâce au procédé selon l'invention, il est par conséquent possible de réaliser un ensemble monobloc comprenant les bobines et leurs câblages maintenus dans le boîtier par la résine isolante, ce boîtier étant ensuite monté en une seule opération sur le bloc moteur.Thanks to the method according to the invention, it is therefore possible to produce a one-piece assembly comprising the coils and their cables maintained in the housing by the insulating resin, this housing then being mounted in a single operation on the engine block.

Le procédé selon l'invention présente par conséquent les avantages des agencements à bobines multiples tout en conservant une très grande simplicité de montage.The method according to the invention therefore has the advantages of multiple coil arrangements while retaining very great simplicity of assembly.

On peut également inclure dans le boîtier, sous forme d'inserts, les circuits magnétiques des bobines à la périphérie des logements de ces bobines.The magnetic circuits of the coils at the periphery of the housings of these coils can also be included in the housing, in the form of inserts.

La présente invention a également pour objet un ensemble d'alimentation électrique des bougies d'un bloc moteur caractérisé par le fait qu'il comprend :

  • un boîtier formant une pluralité de logements et réalisé dans une matière électriquement isolante dans laquelle sont inclus, sous forme d'inserts, des moyens de fixation du boîtier audit bloc moteur;
  • une pluralité de bobines disposées dans lesdits logements;
  • les câblages desdites bobines;
  • une résine électriquement isolante noyant lesdites bobines et leurs câblages.
The present invention also relates to an electrical power supply assembly for the spark plugs of an engine block, characterized in that it comprises:
  • a housing forming a plurality of housings and made of an electrically insulating material in which are included, in the form of inserts, means for fixing the housing to said engine block;
  • a plurality of coils disposed in said housings;
  • the wiring of said coils;
  • an electrically insulating resin embedding said coils and their cables.

Plus particulièrement, l'ensemble selon l'invention peut comprendre un connecteur d'alimentation électrique relié par des laisons câblées basse-tension aux enroulements primaires desdites bobines, ledit connecteur étant également noyé dans la résine.More particularly, the assembly according to the invention may comprise an electrical supply connector connected by low-voltage wired cables to the primary windings of said coils, said connector also being embedded in the resin.

L'ensemble selon l'invention peut également comprendre des passages d'amenée d'air audit bloc moteur, le connecteur d'alimentation électrique étant alors réalisé d'une seule pièce avec un connecteur d'amenée d'air auxdits passages.The assembly according to the invention may also include air supply passages to said engine block, the electrical supply connector then being produced in one piece with an air supply connector to said passages.

Afin de limiter la quantité de résine utilisée ainsi éventuellement que de délimiter les passages d'amenée d'air précités, les câblages sont de préférence disposés dans des canaux limités par des nervures du boîtier.In order to limit the amount of resin used as well as possibly to delimit the aforementioned air supply passages, the cabling is preferably arranged in channels limited by ribs of the housing.

Dans le cas d'un ensemble destiné à un moteur à quatre cylindres et ne comprenant que deux bobines d'allumage, l'enroulement secondaire de chacune des bobines est relié à chacune de ses extrémités à une broche de connection à une des bougies du moteur.In the case of an assembly intended for a four-cylinder engine and comprising only two ignition coils, the secondary winding of each of the coils is connected at each of its ends to a connection pin to one of the spark plugs of the engine .

Le boîtier peut également comprendre sous forme d'inserts disposés à la périphérie des logements des bobines, les circuits magnétiques de retour de ces bobines.The housing can also include, in the form of inserts arranged on the periphery of the coil housings, the magnetic return circuits of these coils.

On décrira maintenant, à titre d'exemple non limitatif, un mode de réalisation particulier de l'invention en référence aux dessins schématiques annexés dans lesquels :

  • la fig. 1 est une vue de dessus du boîtier selon l'invention;
  • la fig. 2 est une vue en coupe selon la ligne II-II de la fig. 1;
  • la fig. 3 est une vue en coupe selon la ligne III-III de la fig. 1;
  • la fig. 4 est une vue de dessus de l'ensemble selon l'invention avant mise en place de la résine; et
  • la fig. 5 est une vue en coupe selon la ligne V-V après mise en place de la résine.
A particular embodiment of the invention will now be described, by way of nonlimiting example, with reference to the appended schematic drawings in which:
  • fig. 1 is a top view of the housing according to the invention;
  • fig. 2 is a sectional view along line II-II of FIG. 1;
  • fig. 3 is a sectional view along line III-III of FIG. 1;
  • fig. 4 is a top view of the assembly according to the invention before placing the resin; and
  • fig. 5 is a sectional view along the line VV after placement of the resin.

Comme montré à la fig. 1, le boîtier 1, présente, vu de dessus, une forme rectangulaire allongée. Ce boîtier est, dans le cas présent, prévu pour loger deux bobines à deux sorties et est par conséquent destiné à un moteur à quatre cylindres.As shown in fig. 1, the housing 1 has, seen from above, an elongated rectangular shape. This box is, in this case, designed to accommodate two coils with two outputs and is therefore intended for a four-cylinder engine.

Ce boîtier est moulé d'une seule pièce dans une matière plastique isolante et inclut, noyés dans cette matière plastique, des inserts 2 pour sa fixation au bloc moteur ainsi que les circuits magnétiques 3 des bobines.This housing is molded in one piece in an insulating plastic material and includes, embedded in this material plastic, inserts 2 for fixing to the engine block as well as the magnetic circuits 3 of the coils.

Le boîtier 1 forme à l'intérieur des deux circuits magnétiques 3 des logements 4 pour les bobines.The housing 1 forms, inside the two magnetic circuits 3, housings 4 for the coils.

Les logements 4 sont reliés par un canal 5 délimité par des nervures 6 à un logement 7 débouchant à l'extérieur du boîtier, pour recevoir les connections de liaison d'alimentation des enroulements primaires des bobines.The housings 4 are connected by a channel 5 delimited by ribs 6 to a housing 7 opening to the outside of the housing, to receive the supply connection connections of the primary windings of the coils.

Les logements 4 étant après montage du boîtier sur le bloc moteur situés directement au-dessus de deux des bougies de ce moteur, sont reliés par des canaux 8 délimités par des nervures 9 à des logements 10 qui, après montage du boîtier sur le bloc moteur, se trouvent immédiatement au-dessus des deux autres bougies.The housings 4 being after assembly of the housing on the engine block located directly above two of the spark plugs of this engine, are connected by channels 8 delimited by ribs 9 to housings 10 which, after assembly of the housing on the engine block , are immediately above the other two candles.

Après moulage du boîtier 1 qui vient d'être décrit, des broches 11 sont disposées au fond des logements 4 et 10 pour assurer la connection électrique des bougies du moteur aux extrémités des enroulements secondaires des bobines.After molding of the housing 1 which has just been described, pins 11 are arranged at the bottom of the housings 4 and 10 to ensure the electrical connection of the spark plugs of the engine to the ends of the secondary windings of the coils.

Ces bobines 12 sont ensuite elles-mêmes mises en place dans les logements 4 du boîtier 1.These coils 12 are then themselves placed in the housings 4 of the housing 1.

Ces bobines sont composées, de façon connue, d'un noyau 13 sur lequel sont placés le bobinot 14 d'enroulement primaire et le bobinot 15 d'enroulement secondaire. L'enroulement primaire 16 est bobiné sur le bobinot 14 et l'enroulement secondaire 17 est bobiné sur le bobinot 15.These coils are composed, in known manner, of a core 13 on which are placed the coil 14 of primary winding and the coil 15 of secondary winding. The primary winding 16 is wound on the bobbin 14 and the secondary winding 17 is wound on the bobbin 15.

Les bobines 12 sont placées dans les logements 4 de telle sorte que les noyaux 13 se trouvent en vis-à-vis des circuits magnétiques de retour 3.The coils 12 are placed in the housings 4 so that the cores 13 are opposite the magnetic return circuits 3.

Un connecteur 18 est alors placé dans le logement 7, ce connecteur 18 comprenant, formés d'une seule pièce, un connecteur électrique 19 et un conduit d'air 20. Après mise en place, le conduit 20 est relié à des passages d'air 21 destinés à amener de l'air au bloc moteur par l'intermédiaire d'ouvertures 22.A connector 18 is then placed in the housing 7, this connector 18 comprising, formed in one piece, an electrical connector 19 and an air duct 20. After installation, the duct 20 is connected to passages of air 21 intended to bring air to the engine block via openings 22.

Le connecteur électrique 19 est relié par des liaisons basse-tension 23 aux enroulements primaires 16 des bobines 12 tandis que les extrémités des enroulements secondaires 17 des bobines sont reliés aux broches 11.The electrical connector 19 is connected by low-voltage links 23 to the primary windings 16 of the coils 12 while the ends of the secondary windings 17 of the coils are connected to pins 11.

L'une des extrémités de chaque enroulement secondaire est directement connectée à la broche 11 de son logement 4, l'autre extrémité étant connectée à une broche d'un des logements 10 par un câble haute-tension 24.One end of each secondary winding is directly connected to the pin 11 of its housing 4, the other end being connected to a pin of one of the housing 10 by a high-voltage cable 24.

Les fils d'alimentation basse-tension 23 sont disposés dans le canal 5 et les câbles haute-tension 24 sont disposés dans les canaux 8.The low-voltage supply wires 23 are arranged in the channel 5 and the high-voltage cables 24 are arranged in the channels 8.

Une fois les câblages terminés, une résine électriquement isolante est coulée dans les logements 4, 7 et 10 ainsi que dans les canaux 5 et 8 immobilisant ainsi les bobines 12 et leurs câblages ainsi que le connecteur double 18.Once the wiring is finished, an electrically insulating resin is poured into the housings 4, 7 and 10 as well as into the channels 5 and 8, thus immobilizing the coils 12 and their wiring as well as the double connector 18.

Un couvercle 26 est ensuite monté sur le boîtier 1 par tout moyen convenable.A cover 26 is then mounted on the housing 1 by any suitable means.

L'ensemble ainsi réalisé est monté en une seule opération sur un bloc moteur à l'aide des pattes de fixation 27 des inserts 2. Il suffit alors de raccorder le connecteur 18 à ses deux alimentations électriques et en air respectives.The assembly thus produced is mounted in a single operation on an engine block using the lugs fixing 27 of the inserts 2. It then suffices to connect the connector 18 to its two respective electrical and air supplies.

Bien entendu, l'invention s'applique également à un moteur comprenant un nombre de cylindres différent de quatre ainsi qu'à des bobines à une seule sortie de secondaire.Of course, the invention also applies to an engine comprising a number of cylinders other than four as well as to coils with a single secondary output.

Claims (8)

1.- Procédé de montage d'une pluralité de bobines d'allumage (12) sur un bloc moteur, caractérisé par le fait qu'il comprend les étapes consistant à : - mouler dans une matière électriquement isolante un boîtier (1) formant une pluralité de logements (4) pour lesdites bobines et incluant sous forme d'inserts des moyens de fixation (2) dudit boîtier audit bloc moteur; - mettre en place lesdites bobines dans lesdits logements; - câbler les connections (23, 24) aux enroulements primaires et secondaires desdites bobines; - couler dans le boîtier une résine électriquement isolante (25) noyant lesdites bobines et leurs câblages; et - fixer le boîtier sur ledit bloc moteur. 1.- A method of mounting a plurality of ignition coils (12) on an engine block, characterized in that it comprises the steps consisting in: - Molding in an electrically insulating material a housing (1) forming a plurality of housings (4) for said coils and including in the form of inserts fixing means (2) of said housing to said engine block; - Position said coils in said housings; - wire the connections (23, 24) to the primary and secondary windings of said coils; - Pouring into the housing an electrically insulating resin (25) embedding said coils and their cables; and - attach the housing to said engine block. 2.- Procédé selon la revendication 1, comprenant les étapes consistant à : - monter dans ledit boîtier, préalablement à la mise en place de la résine, un connecteur (19) d'alimentation des enroulements primaires (16) desdites bobines et des broches de connection (11) aux bougies dudit bloc moteur; et - câbler les liaisons basse-tension (23) entre ledit connecteur et les enroulements primaires des bobines d'une part, et les liaisons haute-tension (24) entre les enroulements secondaires (17) des bobines et lesdites broches de connection d'autre part. 2. A method according to claim 1, comprising the steps consisting in: - Mount in said housing, prior to the installation of the resin, a connector (19) for supplying the primary windings (16) of said coils and connection pins (11) to the spark plugs of said engine block; and - wire the low-voltage connections (23) between said connector and the primary windings of the coils on the one hand, and the high-voltage connections (24) between the secondary windings (17) of the coils and said connection pins on the other go. 3.- Ensemble d'alimentation électrique des bougies d'un bloc moteur, caractérisé par le fait qu'il comprend : - un boîtier (1) formant une pluralité de logements (4) et réalisé dans une matière électriquement isolante dans laquelle sont inclus, sous forme d'inserts, des moyens de fixation (2) du boîtier audit bloc moteur; - une pluralité de bobines (12) disposées dans lesdits logements; - les câblages (23, 24) desdites bobines; - une résine (25) électriquement isolante noyant lesdites bobines et leurs câblages. 3.- Power supply assembly for the spark plugs of an engine block, characterized in that it comprises: - a housing (1) forming a plurality of housings (4) and made of an electrically insulating material in which are included, in the form of inserts, means for fixing (2) of the housing to said engine block; - a plurality of coils (12) arranged in said housings; - the wiring (23, 24) of said coils; - an electrically insulating resin (25) embedding said coils and their cables. 4.- Ensemble selon la revendication 3, comprenant un connecteur (19) d'alimentation électrique relié par des liaisons câblées basse tension (23) aux enroulement primaires (16) desdites bobines, ledit connecteur étant également noyé dans ladite résine. 4. An assembly according to claim 3, comprising a connector (19) for power supply connected by low voltage cable connections (23) to the primary winding (16) of said coils, said connector also being embedded in said resin. 5.- Ensemble selon la revendication 4, comprenant des passages (21) d'amenée d'air audit bloc moteur, ledit connecteur d'alimentation électrique étant réalisé d'une seule pièce avec un connecteur (20) d'amenée d'air auxdits passages. 5. An assembly according to claim 4, comprising passages (21) for supplying air to said engine block, said power supply connector being produced in one piece with a connector (20) for supplying air. at said passages. 6.- Ensemble selon l'une quelconque des revendications 3 à 5, dans lequel les câblages sont disposés dans des canaux (5, 8) limités par des nervures (6, 9) du boîtier. 6.- An assembly according to any one of claims 3 to 5, wherein the cables are arranged in channels (5, 8) limited by ribs (6, 9) of the housing. 7.- Ensemble selon l'une quelconque des revendications 3 à 6, destiné à un moteur à quatre cylindres et comprenant deux bobines d'allumage, l'enroulement secondaire de chacune des bobines étant relié à chacune de ses extrémités à une broche de connection à une des bougies du moteur. 7.- An assembly according to any one of claims 3 to 6, intended for a four-cylinder engine and comprising two ignition coils, the secondary winding of each of the coils being connected at each of its ends to a connection pin to one of the engine spark plugs. 8.- Ensemble selon l'une quelconque des revendications 3 à 7, dans lequel le boîtier comprend en outre, sous forme d'inserts, les circuits magnétiques desdites bobines disposés à la périphérie des logements de ces bobines. 8.- An assembly according to any one of claims 3 to 7, wherein the housing further comprises, in the form of inserts, the magnetic circuits of said coils arranged at the periphery of the housings of these coils.
EP92400526A 1991-03-07 1992-02-28 Mounting method of a plurality of ignition coils on an engine block Expired - Lifetime EP0502768B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9102730 1991-03-07
FR9102730A FR2673683B1 (en) 1991-03-07 1991-03-07 METHOD FOR MOUNTING A PLURALITY OF IGNITION COILS ON A MOTOR BLOCK AND POWER SUPPLY ASSEMBLY FOR IMPLEMENTING THE PROCESS.

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Publication Number Publication Date
EP0502768A1 true EP0502768A1 (en) 1992-09-09
EP0502768B1 EP0502768B1 (en) 2000-09-13

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US (1) US5241942A (en)
EP (1) EP0502768B1 (en)
JP (1) JP3188744B2 (en)
AT (1) ATE196343T1 (en)
DE (1) DE69231429T2 (en)
ES (1) ES2160576T3 (en)
FR (1) FR2673683B1 (en)
GE (1) GEP19981316B (en)
PT (1) PT502768E (en)
RU (1) RU2091605C1 (en)
WO (1) WO1992015781A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19636736C2 (en) * 1996-09-10 1998-09-24 Beru Werk Ruprecht Gmbh Co A Ignition coil set for the ignition system of a multi-cylinder internal combustion engine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29812536U1 (en) * 1998-07-14 1999-11-25 Bosch Gmbh Robert Ignition device for a multi-cylinder internal combustion engine
LU90563B1 (en) * 2000-04-13 2001-10-15 Delphi Tech Inc Method of assembly of ignition pencil coils

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985000930A1 (en) 1983-08-05 1985-02-28 Saab-Scania Aktiebolag Ignition unit in the ignition system of an internal combustion engine
GB2173047A (en) * 1985-03-25 1986-10-01 Hitachi Ltd An ignition coil assembly for an internal combustion engine
US4834056A (en) * 1985-04-17 1989-05-30 Nippondenso Co., Ltd. Ignition coil unit for internal combustion engines
EP0387993A1 (en) * 1989-03-13 1990-09-19 General Motors Corporation Internal combustion engine ignition apparatus having a primary winding module

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
DE2720065A1 (en) * 1977-05-05 1978-11-09 Bosch Gmbh Robert ARRANGEMENT OF IGNITION COIL
DE2812029C2 (en) * 1978-03-18 1986-11-13 Robert Bosch Gmbh, 7000 Stuttgart Ignition device for internal combustion engines
JPS5675962A (en) * 1979-11-22 1981-06-23 Hitachi Ltd Ignition coil of internal combustion engine
US4706639A (en) * 1986-12-04 1987-11-17 General Motors Corporation Integrated direct ignition module

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985000930A1 (en) 1983-08-05 1985-02-28 Saab-Scania Aktiebolag Ignition unit in the ignition system of an internal combustion engine
GB2173047A (en) * 1985-03-25 1986-10-01 Hitachi Ltd An ignition coil assembly for an internal combustion engine
US4834056A (en) * 1985-04-17 1989-05-30 Nippondenso Co., Ltd. Ignition coil unit for internal combustion engines
EP0387993A1 (en) * 1989-03-13 1990-09-19 General Motors Corporation Internal combustion engine ignition apparatus having a primary winding module

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19636736C2 (en) * 1996-09-10 1998-09-24 Beru Werk Ruprecht Gmbh Co A Ignition coil set for the ignition system of a multi-cylinder internal combustion engine

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US5241942A (en) 1993-09-07
JP3188744B2 (en) 2001-07-16
GEP19981316B (en) 1998-05-01
RU2091605C1 (en) 1997-09-27
FR2673683A1 (en) 1992-09-11
DE69231429T2 (en) 2001-05-23
FR2673683B1 (en) 1995-02-03
ES2160576T3 (en) 2001-11-16
WO1992015781A1 (en) 1992-09-17
PT502768E (en) 2001-03-30
JPH05202838A (en) 1993-08-10
DE69231429D1 (en) 2000-10-19
EP0502768B1 (en) 2000-09-13
ATE196343T1 (en) 2000-09-15

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