EP0888655B1 - Cosse de bougie d'allumage pour moteur a combustion interne - Google Patents

Cosse de bougie d'allumage pour moteur a combustion interne Download PDF

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Publication number
EP0888655B1
EP0888655B1 EP97919259A EP97919259A EP0888655B1 EP 0888655 B1 EP0888655 B1 EP 0888655B1 EP 97919259 A EP97919259 A EP 97919259A EP 97919259 A EP97919259 A EP 97919259A EP 0888655 B1 EP0888655 B1 EP 0888655B1
Authority
EP
European Patent Office
Prior art keywords
plug
connector
spark plug
female connector
contact
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
EP97919259A
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German (de)
English (en)
Other versions
EP0888655A1 (fr
Inventor
Florian Virchow
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.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0888655A1 publication Critical patent/EP0888655A1/fr
Application granted granted Critical
Publication of EP0888655B1 publication Critical patent/EP0888655B1/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
    • H01T13/04—Means providing electrical connection to sparking plugs

Definitions

  • From DE-PS 29 48 043 and JP 4-12 486 A is the sealing, elastic guide the spark plug connector in the plug shaft of an engine cylinder or the connector sleeve known on the ceramic shaft of the spark plug.
  • the plug sleeve in the receiving area of the ceramic inlet has several shoulders has in the areas of the ceramic inlet and the sleeve material of the Fit the connector sleeve around each other in a form-fitting manner, then there is another one Cause of possible breakdowns switched off because of a gap between the Ceramic inlet and the connector sleeve are avoided or interrupted.
  • this axial clamping occurs radial clamping such that the outer surface of the ceramic inlet over the Lateral surface length in the distance provided by means of the shoulders, annular contact areas radially positively with the enclosing them Plug sleeve is in contact. So there are several at a distance Contact areas between the ceramic inlet and the connector sleeve, with their help Leakage currents can be suppressed to a considerable extent.
  • the ceramic inlet protects the plug contact for the spark plug and the ignition cable connection in front of arcing in the longitudinal direction and to the side. This also improves the dielectric strength.
  • an O-ring is provided, the outer diameter of which is dimensioned such that a Sealing against the ceramic neck of a spark plug can be brought about.
  • This in itself the seal known from EP 0 248 717 protects the ceramic neck of a spark plug Contamination and thus avoids the creation of a larger contact resistance between the plug contact and the spark plug.
  • the seal also connects that Creep down ignition currents at the insulator and lead to misfires in the engine compartment.
  • a silicone component such as a silicone hose Consideration.
  • the connector sleeve 3 consists of a supporting plug sleeve 3 from a Plastic material that has a high melting point and high dielectric strength Has.
  • a suitable material is currently polytetrafluoroethylene (PTFE).
  • the material the connector sleeve 3 has a thickness of about 5mm.
  • the connector sleeve 3 is in one piece formed and provided with a central longitudinal bore 4, which extends from the plug base 5 extends to the plug head 6a.
  • the bore 4 is in the area of a ceramic inlet 7 in Direction on the plug base 5 with the formation of shoulders 6, 8, 9 gradually expanded.
  • the first shoulder 6 forms an axial inner stop for the ceramic inlet 7.
  • the diameter of the inner wall 3a of the connector sleeve 3 widens in the area of Ceramic inlets 7 on the shoulders 8 and 9 gradually, in such a way that the outer lateral surface 10 of the ceramic inlet 7 on the shoulders 8 and 9 over their whole Circumferential area all around form-fitting and sealing longitudinally Contact surfaces 11 and 12 contact the material of the connector sleeve 3. Shoulders 8 and 9 thus always lead to a secure positive connection at intervals an improvement in the dielectric strength.
  • the connector sleeve 3 is made of PTFE, which is high Has dielectric strength, is easy to clean and edit, that is Ceramic inlet 7 made of a ceramic sleeve, the material itself is also high Dielectric strength.
  • the plug contact 28 is inserted into the ceramic inlet 7
  • the plug contact 28 and the ignition cable connection 32 are in the ceramic inlet 7 moved in; the ceramic is in the direction of the plug base 5 over the Plug contact 28 and towards the plug head 6a via the ignition cable connection 32 over.
  • the plug contact 28 merges into a conductive pin 29 with a Ohmic resistance of about 5 kOhm is connected.
  • the resistor 30 is used Interference voltage reduction and the shortening of the spark burning time as well as the Spark cooldown.
  • the resistor 30 is in turn connected to a connecting pin 31 provided, which runs out in a connector 32 on which the ignition cable 33, for example, by pressing. In this way, form the ignition cable 33 and the spark plug connector an assembly unit.
  • a further increase in the dielectric strength can be brought about by the fact that both the outer jacket 10 of the ceramic inlet 7, the outer jacket 22 of the connector sleeve 3 and the ignition cable 33 are provided with a silicone jacket 34, as in FIG. 1 is indicated.
  • the ignition connection is preferably intended for operation with 50-60 kV and is characterized by a significantly improved dielectric strength and a clearly extended service life.

Landscapes

  • Spark Plugs (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Claims (6)

  1. Cosse de bougie d'allumage pour un moteur à combustion interne, comprenant un contact de cosse (28) pour raccorder l'électrode d'une bougie d'allumage, une gaine de cosse (3) enveloppant le contact enfichable (28), un raccord (32) pour un câble d'allumage, une gaine de cosse (3) d'un seul tenant, rigide et porteuse en une matière isolante et un moyen élastique (20), fixé sur la gaine de cosse (3), moyen (20) qui assure l'étanchéité d'une fente (22) comprise entre la gaine de cosse et un puits de bougie d'allumage d'un cylindre du moteur et par lequel la cosse de la bougie d'allumage est guidée dans le puits de la bougie, un moyen élastique (17) fixé sur la gaine de cosse (3), moyen (17) qui assure l'étanchéité de la fente comprise entre la gaine de cosse (3) et la tige en céramique de la bougie d'allumage, une tête d'entrée (7) en céramique, qui est prévue dans la gaine de cosse (3) et qui entoure le contact de cosse (28) et le raccord (32) du câble d'allumage, le contact de cosse (28) et le raccord de câble d'allumage (32) étant incorporés dans la tête d'entrée (7) en céramique d'une manière telle que la céramique surplombe dans le sens axial le contact de cosse (28) et le raccord (32) pour le câble d'allumage ,
       caractérisé par la combinaison des particularités suivantes:
    a) la gaine de cosse (3) présente dans la zone de réception de la tête d'entrée en céramique (7) plusieurs épaulements (6, 8, 9, 14) dans les zones (11, 12) desquels la tête d'entrée en céramique (7) et la matière de la gaine de cosse (3) s'appliquent l'une contre l'autre sur tout le tour par complémentarité de forme,
    b) la matière de la gaine de cosse (3) présente un point élevé de fusion et une rigidité diélectrique élevée, qui correspondent à ceux du polytetrafluoréthylène (PTFE).
  2. Cosse de bougie d'allumage selon la revendication 1, caractérisée en ce que la tête d'entrée en céramique (7) est, par ses extrémités axiales dans les zones de contact des épaulements (6, 14), en contact dans le sens axial par complémentarité de forme avec la gaine de cosse (3) qui entoure la tête d'entrée en céramique (7).
  3. Cosse de bougie d'allumage selon la revendication 1 et 2, caractérisée en ce que la surface enveloppe (10) de la tête d'entrée en céramique (7) est, en s'écartant sur la longueur de la surface enveloppe, en contact de façon radiale par complémentarité de forme avec la gaine de cosse (3) qui l'entoure, dans des zones de contact (11, 12) de forme annulaire, prévues à distance.
  4. Cosse de bougie d'allumage selon une ou plusieurs des revendications 1 à 3, caractérisée en ce que l'on maintient extrêmement rond tous les composants électriquement conducteurs.
  5. Cosse de bougie d'allumage selon une ou plusieurs des revendications 1 à 4, caractérisée en ce que la gaine de cosse (3) est pourvue du côté extérieur d'un joint torique (20) qui obture la fente (22) comprise entre le côté extérieur de la gaine de cosse (3) et la paroi (24) du puits de bougie (21), des fentes d'aération (26) s'étendant dans le sens de la longueur de la gaine de cosse (3) entre son enveloppe extérieure et le joint torique (20).
  6. Cosse de bougie d'allumage selon une ou plusieurs des revendications 1 à 5, caractérisée en ce que toutes les pièces constitutives, telles que la gaine de cosse (3), la tête d'entrée en céramique (7), les joints d'étanchéité (20, 17), le contact de cosse (28), le câble d'allumage et autres, dans la mesure du possible, sont pourvues d'un revêtement de silicone (34).
EP97919259A 1996-03-22 1997-03-08 Cosse de bougie d'allumage pour moteur a combustion interne Expired - Lifetime EP0888655B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19611283A DE19611283C1 (de) 1996-03-22 1996-03-22 Zündkerzenstecker für einen Verbrennungsmotor
DE19611283 1996-03-22
PCT/DE1997/000459 WO1997036354A1 (fr) 1996-03-22 1997-03-08 Cosse de bougie d'allumage pour moteur a combustion interne

Publications (2)

Publication Number Publication Date
EP0888655A1 EP0888655A1 (fr) 1999-01-07
EP0888655B1 true EP0888655B1 (fr) 2000-05-31

Family

ID=7789058

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97919259A Expired - Lifetime EP0888655B1 (fr) 1996-03-22 1997-03-08 Cosse de bougie d'allumage pour moteur a combustion interne

Country Status (10)

Country Link
US (1) US6068495A (fr)
EP (1) EP0888655B1 (fr)
AT (1) ATE193623T1 (fr)
AU (1) AU2379497A (fr)
DE (1) DE19611283C1 (fr)
DK (1) DK0888655T3 (fr)
ES (1) ES2150768T3 (fr)
NO (1) NO984191L (fr)
PT (1) PT888655E (fr)
WO (1) WO1997036354A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001085139A (ja) * 1999-09-16 2001-03-30 Mitsubishi Electric Corp 内燃機関用点火装置の高圧接続部構造
US6848634B1 (en) * 1999-12-30 2005-02-01 Siemens Vdo Automotive Corp. Fuel injector with thermally isolated seat
ES2283904T3 (es) * 2003-06-04 2007-11-01 GE JENBACHER GMBH & CO. OHG Motor de combustion interna.
US6817872B1 (en) * 2003-11-05 2004-11-16 Steven Michael Berg Heat protective spark plug extension
US7129705B1 (en) 2005-11-17 2006-10-31 M. Eagles Warehouse, Inc. Ignition spark tester
US7768183B2 (en) 2006-09-06 2010-08-03 Federal Mogul World Wide, Inc. Extension spark plug
US7594489B1 (en) 2007-01-19 2009-09-29 Marshall Electric Corp. High voltage extender
WO2008109803A1 (fr) 2007-03-07 2008-09-12 Federal-Mogul Ignition Company Bougie d'allumage à extension de 14 mm
DE202011050966U1 (de) 2011-08-11 2011-10-13 Motortech Gmbh Zündkerzenstecker
US9923300B2 (en) 2016-05-18 2018-03-20 Marshall Electric Corp. Semi-rigid high-voltage extender
US10008830B2 (en) 2016-05-18 2018-06-26 Marshall Electric Corp. High-voltage extender for connecting a spark plug to a high-voltage source

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE839285C (de) * 1943-08-28 1952-05-19 Bosch Gmbh Robert Kabelstecker fuer Zuendkerzen
GB2013989B (en) * 1978-02-03 1983-02-02 Nissan Motor Device for electrically connecting spark plug to high-voltage cable
DE2948043C2 (de) * 1979-11-29 1983-11-03 Daimler-Benz Ag, 7000 Stuttgart Anschlußverlängerung für eine Zündkerze
DE3302878A1 (de) * 1983-01-28 1984-08-02 Robert Bosch Gmbh, 7000 Stuttgart Zuendkerzenstecker
FR2599431B1 (fr) * 1986-06-03 1988-09-09 Renault Sport Bobine electromagnetique et dispositif d'allumage pour moteur a combustion interne comportant une telle bobine.
US4994259A (en) * 1987-05-08 1991-02-19 Salutar, Inc. Improvement in the method of NMR imaging employing a manganese II chelates of N,N'-bis[pyridoxal-alkylene (or cycloalkylene) (or arylene)]-N,N'-diacetic acid derivatives
US4824385A (en) * 1987-11-13 1989-04-25 Prestolite Wire Corporation Rigid sheath for a spark plug cable and its associated boot
JPH0384558U (fr) * 1989-12-20 1991-08-27
JP2887500B2 (ja) * 1990-04-27 1999-04-26 日本特殊陶業株式会社 内燃機関用スパークプラグ
JPH04203269A (ja) * 1990-11-29 1992-07-23 Yazaki Corp 高圧ケーブル装置
DE4101375C1 (fr) * 1991-01-18 1992-04-30 Bayer Ag, 5090 Leverkusen, De
JP2524095Y2 (ja) * 1991-04-15 1997-01-29 住友電装株式会社 自動車エンジンの高圧接続部のキヤップ
US5297971A (en) * 1992-07-17 1994-03-29 Kawasaki Jukogyo Kabushiki Kaisha Spark plug cap
US5391100A (en) * 1992-11-10 1995-02-21 Honda Giken Kogyo Kabushiki Kaisha Method of manufacturing of spark plug cap with ignition voltage detective capacitor
JP3361704B2 (ja) * 1996-10-25 2003-01-07 矢崎総業株式会社 点火プラグ用プラグキャップ

Also Published As

Publication number Publication date
NO984191D0 (no) 1998-09-11
PT888655E (pt) 2000-11-30
ES2150768T3 (es) 2000-12-01
DK0888655T3 (da) 2000-10-09
ATE193623T1 (de) 2000-06-15
WO1997036354A1 (fr) 1997-10-02
DE19611283C1 (de) 1997-10-23
US6068495A (en) 2000-05-30
AU2379497A (en) 1997-10-17
NO984191L (no) 1998-09-11
EP0888655A1 (fr) 1999-01-07

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