EP0819214B1 - Dispositif d'allumage pour moteur a combustion interne multicylindre - Google Patents

Dispositif d'allumage pour moteur a combustion interne multicylindre Download PDF

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Publication number
EP0819214B1
EP0819214B1 EP96945837A EP96945837A EP0819214B1 EP 0819214 B1 EP0819214 B1 EP 0819214B1 EP 96945837 A EP96945837 A EP 96945837A EP 96945837 A EP96945837 A EP 96945837A EP 0819214 B1 EP0819214 B1 EP 0819214B1
Authority
EP
European Patent Office
Prior art keywords
ignition
ignition device
end portion
internal combustion
combustion engine
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.)
Expired - Lifetime
Application number
EP96945837A
Other languages
German (de)
English (en)
Other versions
EP0819214A1 (fr
Inventor
Uwe Hammer
Dieter Betz
Karl-Heinz NÜBEL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0819214A1 publication Critical patent/EP0819214A1/fr
Application granted granted Critical
Publication of EP0819214B1 publication Critical patent/EP0819214B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01T13/02—Details
    • H01T13/06—Covers forming a part of the plug and protecting it against adverse environment
    • 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

Definitions

  • the invention relates to an ignition device for a Multi-cylinder internal combustion engine according to the genus of Claim 1.
  • Such an ignition device is by the EP 0 512 357 A2 in the manner known as several here Individual ignition coils individually mounted in a carrier unit and with their high-voltage domes from the carrier unit stick out.
  • a carrier unit completed in this way can then be used as a one-piece part on the cylinder head one Internal combustion engine applied and all spark plugs the associated ignition coils are connected.
  • the ignition coils are disadvantageously in the Carrier unit rigidly fixed so that it is in operation of the internal combustion engines strong shaking accelerations are exposed to the operational safety of the Can reduce ignition device.
  • each ignition coil has the advantage that the aforementioned inadequacy in a satisfactory manner Measure is avoided.
  • FIG. 1 An embodiment of the invention is in the drawing shown and explained in more detail in the figure description.
  • FIG. 1 is a side view of the ignition device, partially cut, shown.
  • An ignition device 11 shown in the figure for a Contains multi-cylinder internal combustion engine, according to the Number of cylinders of the internal combustion engine, several Ignition coils 12.
  • the ignition device 11 is on for assembly a cylinder head 13 of the internal combustion engine is provided.
  • In the cylinder head 13 are each assigned to a cylinder and each starting from an inlet opening 14, so-called candle shafts 15 with a round Passage cross section arranged.
  • each plug shaft 15 sunk a spark plug 16 fixed used.
  • the spark plug 16 has the inside Inlet opening 14 facing one High-voltage connection 17, which consists of a pin-shaped Electrode 18 and an electrode 18 in storage there is a substantially cylindrical insulating body 19.
  • the ignition coils 12 are in the form of pencil ignition coils cylindrical housing 20 made of elastic insulating material educated.
  • the diameter of the housing 20 is around Joining play smaller than the diameter of the Candle shaft 15. Project out of the housing in axial alignment at the end a first end section 21 for arrangement on the High-voltage connection 17 of the assignable spark plug 16 and a second end section 22 as an extension of an otherwise within the housing 20 extending core 23 of the Ignition coil 12 out.
  • the core 23 is rod-shaped and consists of layered, magnetically conductive material and contributes in a known and not shown manner in a primary and a concentric arrangement Secondary coil.
  • the core 23 has an extrusion coating 24 made of plastic, which surrounds the core 23 in a layer-like manner, however at the beginning of the second end section 22 at the outlet from the housing 20 in addition to one itself radially extending circumferential shoulder 26 and as the first End portion 21 in the extension of the core 23 to an axial directed sleeve-shaped high-voltage dome 27 is formed is. Reset from the free end of the high voltage dome 27 is an axially directed, pin-shaped one High-voltage connection element 28 arranged.
  • a buffer 29 in the form of a hat-shaped rubber cap attached to the bottom 31 the end face of the second end section 22 and with a Outer jacket 32 laterally on the second end section 22 to to shoulder 26.
  • the outer jacket 32 has one conical contour tapering towards the bottom 31.
  • a one-piece, bow-shaped Holding element 33 is provided, which is designed as a stamped part is and in a manner not shown along the Reference lines 34 can be screwed onto the cylinder head 13.
  • the Holding element 33 has in association with the mounting position Ignition coils 12 on the cylinder head 13 for each buffer 29 the inclusion of a recess 36 in the form of a bore 37 or a passage 38.
  • the spout 39 With a lateral surface 41 without play a wall 42 of the candle shaft 15 rests.
  • the Spout 39 has a stepped bore 43 with a first one Bore section 44 and a second bore section 46 on.
  • the smaller bore section 44 in diameter encompasses the spout 39 when inserted Insulator 19, the already assembled spark plug 17 to to one adjacent to the electrode 18 Centering section 47 of the insulating body 19 without play.
  • the ignition coil 12 is now with radial play in the Inserted candlestick 15 until the housing 20th strikes at the end of the spout 39.
  • this End position of the ignition coil 12 includes the end region of the High-voltage dome 27 inside with movement play Centering section 47 of the insulating body 19 and lies on the outside without play or with little radial pressure in the larger diameter second bore section 46 of the Grommet 39 on.
  • Ignition coil 12 on the high-voltage connection element 28 adjacent high-voltage contact element 48 in the form of a Coil spring made of metal in frictional engagement with the High-voltage connection 18 of the spark plug 17 and provides the electrical connection between the output of the ignition coil 12 and the input of the spark plug 17 in a flexible manner.
  • each buffer 29 arrives in an associated recess 36.
  • the clear width of the recess 36 is dimensioned so that the buffer 29 in the area of the bottom 31 through this can pass through, but immediately afterwards, for example after a third of the longitudinal extent of the buffer 29, the Outer jacket 32 on the inside of the recess 36 for contact comes and another passage of the buffer 29th prevented.

Landscapes

  • 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)
  • Spark Plugs (AREA)

Claims (6)

  1. Dispositif d'allumage pour un moteur à combustion interne à plusieurs cylindres comportant plusieurs bobines d'allumage (12) de préférence de même type,
    chacune des bobines est formée d'un noyau (23) en matière conductrice d'aimantation, d'un corps (20) en un matériau isolant électrique et d'un premier segment (21) pour être monté sur une borne de haute tension (17) dans un puits à bougie (15) d'une culasse (13) du moteur à combustion interne pour une bougie d'allumage (16), fixe,
    caractérisé en ce que
    les bobines d'allumage (12) forment chaque fois un second segment d'extrémité (22) avec une partie du noyau (23) dépassant du boítier (20),
    ce segment est tenu par l'intermédiaire d'un tampon élastique (29) par un élément de fixation (33) bloqué dans les puits à bougie (15) et,
    le premier segment d'extrémité (21) est relié par au moins un corps déformable élastiquement (39, 48) à la borne de haute tension (17) en étant relié au moins par une liaison indirecte.
  2. Dispositif d'allumage selon la revendication 1,
    caractérisé en ce que
    les bobines d'allumage (12) sont réalisées chaque fois sous la forme de bobines d'allumage à tige avec une forme extérieure essentiellement cylindrique et les deux segments d'extrémité (21, 22) font face dans l'alignement axial.
  3. Dispositif d'allumage selon la revendication 2,
    caractérisé en ce que
    le tampon (29) est réalisé sous la forme d'un capuchon en caoutchouc placé sur le second segment d'extrémité (22) et entourant dans une très large mesure le second segment d'extrémité (22) et ayant une enveloppe extérieure (32), conique, allant en diminuant vers la face frontale.
  4. Dispositif d'allumage selon la revendication 3,
    caractérisé en ce que
    l'élément de fixation (33) est réalisé sous la forme d'une pièce en tôle en un seul morceau, ayant une section d'étrier qui se fixe sur la culasse 13 du moteur à combustion interne et cette pièce comporte des découpes (36) pour recevoir les tampons (29), sous la forme de perçages ou de passages.
  5. Dispositif d'allumage selon la revendication 4,
    caractérisé en ce que
    le corps déformable élastiquement se compose d'une douille (39), de préférence en caoutchouc, s'appuyant dans le puits à bougie (15) et d'un élément de contact à haute tension (48), conducteur d'électricité, relié à une électrode (18) formant une partie de la borne de haute tension (17) et en liaison électrique, par une liaison de force, avec un élément de branchement de haute tension (28) de la bobine d'allumage (12).
  6. Dispositif d'allumage selon la revendication 5,
    caractérisé en ce que
    la douille (19) comporte un perçage étagé (43) entourant d'un côté, un dôme de haute tension (27) formant le premier segment d'extrémité (21) de la bobine d'allumage (12) et de l'autre côté, il entoure un corps isolant (19) de la bobine d'allumage (12) qui forme une autre partie de la borne de haute tension (17).
EP96945837A 1996-02-06 1996-10-28 Dispositif d'allumage pour moteur a combustion interne multicylindre Expired - Lifetime EP0819214B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19604105 1996-02-06
DE19604105A DE19604105A1 (de) 1996-02-06 1996-02-06 Zündvorrichtung für eine Mehrzylinder-Brennkraftmaschine
PCT/DE1996/002048 WO1997029280A1 (fr) 1996-02-06 1996-10-28 Dispositif d'allumage pour moteur a combustion interne multicylindre

Publications (2)

Publication Number Publication Date
EP0819214A1 EP0819214A1 (fr) 1998-01-21
EP0819214B1 true EP0819214B1 (fr) 2000-03-29

Family

ID=7784545

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96945837A Expired - Lifetime EP0819214B1 (fr) 1996-02-06 1996-10-28 Dispositif d'allumage pour moteur a combustion interne multicylindre

Country Status (7)

Country Link
US (1) US5890473A (fr)
EP (1) EP0819214B1 (fr)
JP (1) JPH11504412A (fr)
KR (1) KR19980703531A (fr)
BR (1) BR9604941A (fr)
DE (2) DE19604105A1 (fr)
WO (1) WO1997029280A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020057170A1 (en) * 1999-11-08 2002-05-16 Albert Anthony Skinner Ignition coil
DE10152085A1 (de) * 2001-10-23 2003-04-30 Bosch Gmbh Robert Verbindungsmittel für Zündanlagen von Brennkraftmaschinen
US6877497B2 (en) * 2003-02-21 2005-04-12 Delphi Technologies, Inc. Ignition coil cassette having epoxy anchored bushings
JP6528573B2 (ja) * 2015-07-13 2019-06-12 株式会社デンソー 点火装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4706639A (en) * 1986-12-04 1987-11-17 General Motors Corporation Integrated direct ignition module
FR2655385B1 (fr) * 1989-12-01 1992-04-03 Peugeot Dispositif de fixation amovible sur une culasse de moteur d'un ensemble constitue par une bobine d'allumage et une bougie.
US5109828A (en) * 1990-03-27 1992-05-05 Nippondenso Co., Ltd. Apparatus for supplying high voltage to spark plug of internal combustion engine
US5152274A (en) * 1990-08-01 1992-10-06 Mitsubishi Denki Kabushiki Kaisha Ignition coil apparatus
US5111790A (en) * 1990-09-28 1992-05-12 Prestolite Wire Corporation Direct fire ignition system having individual knock detection sensor
US5239973A (en) * 1990-10-12 1993-08-31 Mitsubishi Denki Kabushiki Kaisha Ignition apparatus for an internal combustion engine
IT1246068B (it) * 1991-05-03 1994-11-07 Magneti Marelli Spa Gruppo di accensione a bobine di tipo plug-top per un motore a combustione interna
DE4420271B4 (de) * 1994-06-10 2007-09-27 Robert Bosch Gmbh Zündspulensatz für eine Mehrzylinder-Brennkraftmaschine
US5577921A (en) * 1995-06-16 1996-11-26 Caterpillar Inc. Electrical connector system for electrically connecting a voltage source to a spark plug terminal

Also Published As

Publication number Publication date
DE59604841D1 (de) 2000-05-04
US5890473A (en) 1999-04-06
KR19980703531A (ko) 1998-11-05
BR9604941A (pt) 1998-06-09
EP0819214A1 (fr) 1998-01-21
JPH11504412A (ja) 1999-04-20
WO1997029280A1 (fr) 1997-08-14
DE19604105A1 (de) 1997-08-07

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