EP0858139A1 - Bougie d'allumage - Google Patents

Bougie d'allumage Download PDF

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Publication number
EP0858139A1
EP0858139A1 EP98101912A EP98101912A EP0858139A1 EP 0858139 A1 EP0858139 A1 EP 0858139A1 EP 98101912 A EP98101912 A EP 98101912A EP 98101912 A EP98101912 A EP 98101912A EP 0858139 A1 EP0858139 A1 EP 0858139A1
Authority
EP
European Patent Office
Prior art keywords
spark plug
spark
insulator
electrode
plug according
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.)
Granted
Application number
EP98101912A
Other languages
German (de)
English (en)
Other versions
EP0858139B1 (fr
Inventor
Werner Niessner
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.)
BorgWarner Ludwigsburg GmbH
Original Assignee
Beru AG
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 Beru AG filed Critical Beru AG
Publication of EP0858139A1 publication Critical patent/EP0858139A1/fr
Application granted granted Critical
Publication of EP0858139B1 publication Critical patent/EP0858139B1/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
    • H01T13/52—Sparking plugs characterised by a discharge along a surface
    • 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
    • H01T13/46—Sparking plugs having two or more spark gaps
    • H01T13/467—Sparking plugs having two or more spark gaps in parallel connection

Definitions

  • the invention relates to a spark plug for an internal combustion engine with a spark plug body made of an electrically conductive Material, an electrical insulator that is centered in the Spark plug body is arranged, a central electrode, which in an insulator hole is arranged in the insulator and from the Insulator tip protrudes and laterally to the center electrode employed ground electrodes that are electrically connected to the spark plug body are connected.
  • Spark plugs where different spark paths are provided are from DE 195 032 23 A1 and DE-OS 2 106 893 known.
  • the object underlying the invention is in contrast in the spark plug of the type mentioned above train that they have a long life without harming the Isolator ceramic e.g. through the so-called spark saw.
  • At least one of the ground electrodes is arranged so that its bottom edge facing the insulator with the end face of the insulator tip lies in one plane.
  • Spark plug comprises a spark plug body 1 from a electrically conductive material, an electrical insulator 2 a ceramic material that is centered in the spark plug body 1 is arranged, a center electrode 3, which is in an insulator bore is arranged in the insulator 2 and from the insulator tip protrudes, and employed laterally to the center electrode 3 Ground electrodes 4, 5, which are electrically connected to the spark plug body 1 are connected.
  • the ground electrodes are 4, 5 arranged in pairs diametrically opposite one another.
  • ground electrodes 4, 5 are such that different spark paths, namely a pure air spark path FS1, a combined sliding spark and air spark path FS2 and another combined sliding / air spark path FS3 surrender.
  • the other ground electrode 4 is opposite the center electrode 3 is formed so that the other combined sliding / air spark travel path FS3 results.
  • At least one ground electrode each which forms a pure air spark path or an air spark and parallel sliding spark path, as well as with at least one ground electrode that has a combined sliding / air spark path forms.
  • the training can also be such that there is a spark path in addition to the pure air spark path FS1 FS2 forms a parallel combined glide / air spark travel path is.
  • the gap ratios between the spark paths FS1 and FS2 are then preferably EA1: EA2 equal to 3: 2, as in Fig. 3 is shown.
  • the electrode distances EA1, EA2, EA3 between the ground electrode 5 and the center electrode 3, between the lower edge the ground electrode 5 and the insulator tip and between the ground electrode 4 and the center electrode 3 preferably in a ratio of 3: 2: 6.
  • the electrode spacing EA3 can be divided according to FIG. 3 into a sliding spark gap EA3.1 and into an air spark gap EA3.2, preferably in a ratio of 1: 1 to each other stand.
  • a recess 6 is formed, which is ring-shaped around the center electrode 3 runs.
  • This recess 6 runs obliquely to Angular axis of the center electrode 3 at a half angle ⁇ Countersink 6, starting from the angular axis, which is between 15 ° and 45 ° in particular between 25 ° and 35 ° and preferably at 30 °.
  • the dimensions of the countersink 6 are in particular the following: Gap dimension a between the countersink 6 and the outer surface the center electrode 3: 0.2 to 1.0 mm, preferably 0.4 to 0.6 mm, in particular the following applies: a ⁇ 0.5 * EA 3.1.
  • the isolator foot tip is free of electrical power at full load conductive coatings and soot deposits.
  • the spark formation will therefore develop as a pure air spark path FS1.
  • Such a spark discharge takes place via this spark path FS1 takes place until the burnup potential at the Air spark path between the center electrode 3 and the ground electrode 5 is used up, and the voltage requirement for the Formation of a spark on this spark path higher than that The voltage requirement of the other spark paths FS2 or FS3 is.
  • the spark path FS3 offers special advantages during a cold start through the serial arrangement of the center electrode 3 and the ground electrode 4. The long spark path ensures the spark path FS3 also ensures a safe ignition of the mixture It is ensured that the internal combustion engine even with inhomogeneous mixtures runs smoothly.

Landscapes

  • Spark Plugs (AREA)
EP98101912A 1997-02-06 1998-02-04 Bougie d'allumage Expired - Lifetime EP0858139B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19704524 1997-02-06
DE19704524A DE19704524C2 (de) 1997-02-06 1997-02-06 Zündkerze für eine Brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP0858139A1 true EP0858139A1 (fr) 1998-08-12
EP0858139B1 EP0858139B1 (fr) 2002-10-16

Family

ID=7819509

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98101912A Expired - Lifetime EP0858139B1 (fr) 1997-02-06 1998-02-04 Bougie d'allumage

Country Status (4)

Country Link
EP (1) EP0858139B1 (fr)
AT (1) ATE226368T1 (fr)
DE (2) DE19704524C2 (fr)
ES (1) ES2184152T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19924682A1 (de) * 1999-05-29 2000-12-07 Daimler Chrysler Ag Zündkerze als Meßsonde zur Ionenstrommessung

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10227513B9 (de) * 2002-06-19 2004-09-30 Beru Ag Zündkerze
DE10319698A1 (de) * 2003-05-02 2004-11-18 Volkswagen Ag Zündkerze
JP2006049206A (ja) * 2004-08-06 2006-02-16 Denso Corp 内燃機関用スパークプラグ
DE102006033578A1 (de) * 2006-07-20 2008-01-31 Beru Ag Zündeinrichtung, insbesondere Zündkerze für eine Verbrennungskraftmaschine und Verfahren zur Positionierung von wenigstens einer Masseelektrode in der Zündeinrichtung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1129455A (en) * 1964-09-30 1968-10-09 Bosch Gmbh Robert Improvements in sparking plugs
JPH07201450A (ja) * 1993-12-28 1995-08-04 Ngk Spark Plug Co Ltd 内燃機関用スパークプラグ

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2208178A (en) * 1939-04-15 1940-07-16 Raymond T Scull Spark plug
FR1456736A (fr) * 1965-08-24 1966-07-08 Bosch Gmbh Robert Bougie d'allumage combinée à haute tension et à étincelles glissantes
FR1446036A (fr) * 1965-08-31 1966-07-15 Bosch Gmbh Robert Bougie d'allumage combinée à haute tension et à étincelles glissantes
DE2106893A1 (de) * 1971-02-13 1972-08-31 Bosch Gmbh Robert Kombinierte Hochspannungs Luft und Gleitfunken Zündkerze
JP3010234B2 (ja) * 1990-08-08 2000-02-21 日本特殊陶業株式会社 外側電極を多極化したスパークプラグ
DE19503223C2 (de) * 1995-02-02 2000-06-08 Opel Adam Ag Zündkerze für eine Brennkraftmaschine
JPH10189212A (ja) * 1995-11-15 1998-07-21 Ngk Spark Plug Co Ltd 多極スパークプラグ

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1129455A (en) * 1964-09-30 1968-10-09 Bosch Gmbh Robert Improvements in sparking plugs
JPH07201450A (ja) * 1993-12-28 1995-08-04 Ngk Spark Plug Co Ltd 内燃機関用スパークプラグ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 095, no. 011 26 December 1995 (1995-12-26) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19924682A1 (de) * 1999-05-29 2000-12-07 Daimler Chrysler Ag Zündkerze als Meßsonde zur Ionenstrommessung
DE19924682C2 (de) * 1999-05-29 2003-06-12 Daimler Chrysler Ag Zündkerze als Meßsonde zur Ionenstrommessung

Also Published As

Publication number Publication date
DE59805929D1 (de) 2002-11-21
EP0858139B1 (fr) 2002-10-16
ES2184152T3 (es) 2003-04-01
DE19704524C2 (de) 2002-06-20
DE19704524A1 (de) 1998-08-13
ATE226368T1 (de) 2002-11-15

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