EP1005126B1 - Bougie d'allumage - Google Patents

Bougie d'allumage Download PDF

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Publication number
EP1005126B1
EP1005126B1 EP99117056A EP99117056A EP1005126B1 EP 1005126 B1 EP1005126 B1 EP 1005126B1 EP 99117056 A EP99117056 A EP 99117056A EP 99117056 A EP99117056 A EP 99117056A EP 1005126 B1 EP1005126 B1 EP 1005126B1
Authority
EP
European Patent Office
Prior art keywords
central electrode
composite material
section
electrode
ignition
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
EP99117056A
Other languages
German (de)
English (en)
Other versions
EP1005126A1 (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 EP1005126A1 publication Critical patent/EP1005126A1/fr
Application granted granted Critical
Publication of EP1005126B1 publication Critical patent/EP1005126B1/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
    • H01T13/20—Sparking plugs characterised by features of the electrodes or insulation
    • H01T13/39—Selection of materials for electrodes

Definitions

  • the invention relates in particular to electrodes for ignition systems Spark plugs for high voltage ignitions at various Applications particularly in the ignition of internal combustion engines and spark plugs with such electrodes.
  • Known center electrodes are e.g. from a coat made of nickel alloy and a core of copper metal. This Center electrodes have a lifespan of approximately 60,000 km designed. If this lifetime is to be extended, the Center electrode on the ignition surface, for example with precious metal be provided; the center electrode can also be solid from, for example, silver, silver-nickel fiber composite or the like. be executed.
  • the object on which the invention is based is in contrast in that the precious metal reinforcement with a lower Manufacturing effort.
  • this object is achieved by that at least on the ignition side, the electrode made of a composite material in doublé-bar-shaped or doublé-tube-section-shaped Training are made, the coat made of precious metal and the core in the form of a double bar section Training or the inner layer in the case of a double tube section Training consist of base metal.
  • Electrodes are the subject of claims 2 and 3.
  • a spark plug with at least one electrode according to the invention as well as particularly preferred embodiments of such Spark plugs are the subject of claims 4 to 7.
  • the electrodes according to the invention and preferably from them Manufactured spark plugs show in terms of their manufacture and function have considerable advantages over the prior art on. For example, side electrode concepts are simple realizable; the previously difficult precious metal reinforcement the electrodes are omitted with the consequence of the simple Production of the center electrodes according to the invention; the Weldability of the material combinations used according to the invention is caused, for example, by the impact of nickel Nickel simplified.
  • a center electrode which is made in one piece from a rod section or Sheathed wire with a sheath (2) made of precious metal such as platinum, a platinum alloy, Silver Palladium u. ⁇ .and a good heat-conducting core (1) made of oxidation-resistant Material, such as nickel or nickel alloy.
  • the Diameter A of the electrode is preferably ⁇ 2 mm, preferably ⁇ 1.5 mm.
  • the center electrode body consists of a standard center electrode body with a diameter of 2.0 to 3 mm with nickel jacket (3) and Copper core (4).
  • the rod section-shaped composite material is on the ignition side of this body welded from nickel jacket (5) and platinum core (6).
  • the sheathed wire section has a much smaller diameter (about 1.0 mm) than that conventional center electrode body with a diameter of 2.0 to 3 mm.
  • FIG. 2a Another embodiment is shown in FIG. 2a; here is on the same known center electrode body in the front ignition area the sheathed wire section made of the composite material with the same Diameter dimensioning attached.
  • the sheathed wire consists of the Precious metal jacket (7), for example made of platinum or silver-palladium, during the Core (8) is formed from an oxidation-resistant, good heat-conducting material.
  • FIG. 3 Another embodiment of the invention is shown in FIG. 3.
  • a conventional nickel jacket / copper core center electrode body formed an enlarged diameter, here the known per se Center electrode body in the ignition-side area at least partially annular from the Composite material in the form of a doublé pipe section is included; the coat (9) this doublé pipe section consists of precious metal and the inside (10) oxidation resistant material.
  • Fig. 4 shows in partial cross section the ignition-side area of a spark plug with side electrodes again.
  • the center electrode is designed according to FIG. 2a;
  • the jacket (13) of the composite material which is in the form of a rod section exists here again made of precious metal.
  • the welding on the usual center electrode body does not cause any difficulties, especially if the core (13a) of the attachment the same material, for example nickel, as the adjacent material of the Center electrode body is made.
  • Fig. 5 gives a spark gap with a ring electrode made of double tube section with precious metal (14) as the inner area and oxidation-resistant material (15) as outer area.
  • the opposite center electrode is also on the ignition side a doublé pipe section according to FIG. 3; the outer surface (16) here made of precious metal.
  • FIG. 7 shows a spark plug with a spark gap arrangement as a sliding / air spark gap.
  • the center electrode is preferably as in FIG Figure 2a described used.
  • the center electrode consists of at the ignition end a sheathed wire section with a noble metal sheath, e.g. Platinum and has a core of oxidation-resistant, good heat-conducting core, e.g. Nickel.
  • the sheathed wire section is on a conventional center electrode, consisting of a jacket made of a Nickel alloy and a copper core applied.
  • the center electrode is on the ignition-side end is protected from wear by the burn-resistant precious metal jacket, so that long engine running times can be reliably achieved with this spark plug.
  • the Body electrode can be positioned below the insulator tip as shown in position 17 be positioned, or as shown in position 18 with the lower edge of the body electrode and the insulator tip are on the same level to prevent wear of the ceramic counteract.
  • Several 2, 3 or 4 side electrodes are conceivable, including one A combination of two pairs of electrodes of different heights is possible.

Landscapes

  • Spark Plugs (AREA)

Claims (7)

  1. Electrodes pour systèmes d'allumage, en particulier pour des bougies d'allumage, qui sont fabriquées au moins côté allumage dans un matériau composite dans une réalisation en forme de tronçon de barre plaqué ou en forme de tronçon de tube plaqué, l'enveloppe étant composée de métal précieux et le noyau pour la réalisation en forme de tronçon de barre plaqué ou la couche intérieure pour la réalisation en forme de tronçon de tube plaqué étant composé(e) de métal non précieux.
  2. Electrode selon la revendication 1, réalisée comme une électrode centrale avec des diamètres de 0,5 mm à 2 mm, dans laquelle l'électrode centrale est réalisée de façon intégrale dans un matériau composite en forme de tronçon de barre, ou dans laquelle le matériau composite en forme de tronçon de barre est disposé à l'avant sur une électrode centrale à noyau de cuivre.
  3. Electrode selon la revendication 1, réalisée comme une électrode centrale dont le diamètre d'électrode côté allumage est supérieur au diamètre du corps d'électrode centrale, dans laquelle le matériau composite en forme de tronçon de tube plaqué entoure la zone d'extrémité côté allumage du corps d'électrode centrale au moins partiellement en forme d'anneau.
  4. Bougie d'allumage, comprenant au moins l'une des électrodes selon l'une quelconque des revendications 1 à 3.
  5. Bougie d'allumage selon la revendication 4 avec une électrode centrale dont le diamètre d'électrode côté allumage est supérieur à celui du corps d'électrode centrale, dans laquelle le matériau composite en forme de tronçon de tube plaqué entoure la zone d'extrémité du corps d'électrode centrale au moins partiellement en forme d'anneau, l'enveloppe (16) étant composée de métal précieux, cette électrode centrale étant entourée d'une électrode annulaire qui est réalisée à partir d'un tronçon de tube plaqué dont la zone intérieure (14) est formée en métal précieux et dont la zone extérieure (15) est formée dans un matériau résistant à l'oxydation.
  6. Bougie d'allumage selon la revendication 4 avec des électrodes latérales, dans laquelle le corps d'électrode centrale se compose d'une enveloppe de nickel et d'un noyau de cuivre connus en soi, un tronçon de barre du matériau composite étant appliqué par soudage au corps côté allumage et l'enveloppe (13) étant composée de métal précieux et le noyau (13a) étant composé du même matériau, par exemple du nickel, que le matériau adjacent du corps d'électrode centrale.
  7. Bougie d'allumage selon la revendication 4, dans laquelle l'électrode centrale présente un diamètre d'électrode centrale égal ou inférieur à 1,2 mm, le matériau composite étant réalisé sous la forme d'un tronçon de barre de ce diamètre et fondu dans le verre d'isolateur.
EP99117056A 1998-11-27 1999-08-30 Bougie d'allumage Expired - Lifetime EP1005126B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19854861A DE19854861A1 (de) 1998-11-27 1998-11-27 Zündkerze
DE19854861 1998-11-27

Publications (2)

Publication Number Publication Date
EP1005126A1 EP1005126A1 (fr) 2000-05-31
EP1005126B1 true EP1005126B1 (fr) 2004-08-11

Family

ID=7889288

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99117056A Expired - Lifetime EP1005126B1 (fr) 1998-11-27 1999-08-30 Bougie d'allumage

Country Status (4)

Country Link
EP (1) EP1005126B1 (fr)
AT (1) ATE273579T1 (fr)
DE (2) DE19854861A1 (fr)
ES (1) ES2222642T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004033880A1 (de) * 2004-07-13 2006-02-09 Beru Ag Zündkerze für eine Brennkraftmaschine

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10156949B4 (de) * 2001-11-20 2004-03-04 Robert Bosch Gmbh Zündkerze
DE202004006644U1 (de) * 2004-04-27 2004-08-26 Buderus Heiztechnik Gmbh Elektrode
DE102013109612A1 (de) * 2013-09-03 2014-09-25 Federal-Mogul Ignition Gmbh Zündkerze
CN105830293B (zh) 2013-12-20 2018-05-08 日本特殊陶业株式会社 火花塞
DE102014226107A1 (de) * 2014-12-16 2016-06-16 Robert Bosch Gmbh Zündkerzen mit Mittelelektrode
US10923887B2 (en) 2017-03-15 2021-02-16 Tenneco Inc. Wire for an ignition coil assembly, ignition coil assembly, and methods of manufacturing the wire and ignition coil assembly

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3452235A (en) * 1966-08-17 1969-06-24 Ford Motor Co Spark plug having a short tip center electrode
DE2614274C3 (de) * 1976-04-02 1980-06-19 Beru-Werk Albert Ruprecht Gmbh & Co Kg, 7140 Ludwigsburg Hochspannungszundkerze
JPS59160988A (ja) * 1983-03-02 1984-09-11 日本特殊陶業株式会社 スパ−クプラグ
DE8902032U1 (de) * 1989-02-21 1989-05-18 Jenbacher Werke AG, Jenbach, Tirol Zündkerze
JPH03101086A (ja) * 1989-09-14 1991-04-25 Ngk Spark Plug Co Ltd 内燃機関用スパークプラグ
JP3301094B2 (ja) * 1991-12-13 2002-07-15 株式会社デンソー 内燃機関用スパークプラグおよびその製造方法
DE4431143B4 (de) * 1994-09-01 2004-09-23 Robert Bosch Gmbh Zündkerze für eine Brennkraftmaschine
JP3692555B2 (ja) * 1994-12-16 2005-09-07 株式会社デンソー 内燃機関用スパークプラグ
JP4255519B2 (ja) * 1995-06-12 2009-04-15 株式会社デンソー 内燃機関用スパークプラグ及びその製造方法
DE19705372C2 (de) * 1997-02-12 2002-06-27 Beru Werk Ruprecht Gmbh Co A Zündkerze für eine Brennkraftmaschine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004033880A1 (de) * 2004-07-13 2006-02-09 Beru Ag Zündkerze für eine Brennkraftmaschine
DE102004033880B4 (de) * 2004-07-13 2009-12-31 Beru Ag Zündkerze für eine Brennkraftmaschine

Also Published As

Publication number Publication date
DE59910188D1 (de) 2004-09-16
ATE273579T1 (de) 2004-08-15
EP1005126A1 (fr) 2000-05-31
ES2222642T3 (es) 2005-02-01
DE19854861A1 (de) 2000-05-31

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