EP1265328B1 - Bougie d'allumage d'un moteur à combustion interne - Google Patents

Bougie d'allumage d'un moteur à combustion interne Download PDF

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Publication number
EP1265328B1
EP1265328B1 EP02010192A EP02010192A EP1265328B1 EP 1265328 B1 EP1265328 B1 EP 1265328B1 EP 02010192 A EP02010192 A EP 02010192A EP 02010192 A EP02010192 A EP 02010192A EP 1265328 B1 EP1265328 B1 EP 1265328B1
Authority
EP
European Patent Office
Prior art keywords
spark plug
set forth
housing
welded
insulator body
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
EP02010192A
Other languages
German (de)
English (en)
Other versions
EP1265328A1 (fr
Inventor
Christoph Egger
Christian Francesconi
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.)
Innio Jenbacher GmbH and Co OG
Original Assignee
GE Jenbacher GmbH and Co OHG
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 GE Jenbacher GmbH and Co OHG filed Critical GE Jenbacher GmbH and Co OHG
Publication of EP1265328A1 publication Critical patent/EP1265328A1/fr
Application granted granted Critical
Publication of EP1265328B1 publication Critical patent/EP1265328B1/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
    • H01T21/00—Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs
    • H01T21/02—Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs of sparking plugs
    • 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
    • H01T13/32—Sparking plugs characterised by features of the electrodes or insulation characterised by features of the earthed electrode

Definitions

  • the present invention relates to a spark plug of an internal combustion engine, in particular for use in gasoline engines, with an insulator body, with at least one fixed ground electrode support assembly and with at least a fixed center electrode carrier, wherein at least one housing upper part and a housing lower part having spark plug housing the insulator body at least partially surrounds, wherein at least the combustion chamber side of the Insulator body of the lower housing part together with the upper housing part pressure-resistant, preferably completely, is included.
  • spark plugs for industrial gas engines are in many cases products derived from the automotive industry and by corresponding improvements for preferential use in industrial gas engines were adjusted.
  • These candles usually have a fixed cylindrical Center electrode, which is provided with a noble metal pin.
  • At the fixed Ground electrodes become both the hook electrode and two to four laterally mounted electrode fingers used.
  • Such ground electrodes can also be provided with a precious metal plate.
  • Spark plugs of this type are made EP 0834973 A2, EP 0859436 A1, EP 1049222 A1, DE 19641856 A1 and from the WO 95/25372 known. Spark plugs with multi-part spark plug housings are e.g. out GB 156,087 A or US 6,152,095 A.
  • spark plugs A major disadvantage This known in the prior art spark plugs is that their compressive strength is not sufficiently well trained for a permanent operation. So It often happens with spark plugs according to the prior art for unintentional Squeezing the insulator body or the base center electrode. happens this in operating conditions in which a high internal pressure in the cylinder of the internal combustion engine prevails, it may in the prior art to an explosive Imposition of insulator body and / or base center electrode come under what also pose a threat to the operating staff present.
  • the object of the invention is therefore to avoid the disadvantages listed above and a particularly flameproof, but also easy to manufacture spark plug available to deliver.
  • the individual parts can be very pressure resistant manufactured, then pushed onto the insulator body and by welding be assembled in such a way that a very pressure-resistant spark plug arises. Following welding occurs when cooling the spark plug housing a shrinkage process, which leads to a further bias.
  • the conveniently provided seals between Insulator body and spark plug housing additionally pressurized, thereby a particularly good seal is achieved.
  • the composite comprises housing lower part and Housing upper part of the insulator body of the spark plug in such a way that an unwanted Extruding the insulator body or the base center electrode from the spark plug housing effectively prevented.
  • housing lower and upper part refer to the normal installation position of a spark plug, in which the Lower part of the housing towards the combustion chamber and the upper part of the housing pointing upwards in the direction of the spark plug connector.
  • connection of the individual parts of the spark plug housing it is particularly favorable that these in their contact area before welding pushed together and / or optionally additionally pressed.
  • connection in the contact area between the individual parts of the Spark plug housing is made a particularly flameproof spark plug.
  • the individual parts of the Spark plug housing made of electrically conductive material and / or the Connections of the individual parts of the spark plug housing in their respective Contact area are formed conductive. This allows the spark plug as electrically conductive connector between at least one ground electrode and the cylinder or engine block are used.
  • the compressive strength of the spark plug is particularly preferred Embodiments further reinforced by the fact that the insulator body at least one preferably extending over its entire circumference bead which preferably has at least one contact area of at least two Housing parts, is arranged, with the welding offers on the bead.
  • the Designation Ground electrode carrier assembly refers to a Arrangement of at least one ground electrode carrier on which in turn at least one ground electrode is arranged.
  • the ground electrode support assembly preferably four perpendicular to each other, flat, preferably after having pointing inside, ground electrodes.
  • at least a ground electrode and / or at least one ground electrode support assembly welded to at least a portion of the spark plug housing and / or is integrated in at least part of the spark plug housing.
  • center electrode carrier in the counterpart to the ground electrodes and the ground electrode support assembly specially designed center electrode carrier is special favorable, that at least one, preferably four, arranged perpendicular to each other - planar - preferably outwardly facing - center electrode (s) on the central electrode support is arranged (are).
  • the center electrode carrier as also the ground electrode carrier arrangement one or more individual electrode carrier and electrodes. It is particularly favorable that the electrodes of the Center electrode carrier and the ground electrode carrier assembly in pairs plane-parallel opposite an insulating air gap between each other are arranged. By such an arrangement is a very good and reliable ignition of the fuel-air mixture as well as a long time Life of the flameproof spark plug reached.
  • a particularly pressure-resistant variant is achieved in that the center electrode carrier is shouldered on the insulator body and / or the Base center electrode surrounds and / or with the base center electrode preferably completely welded. This is mainly an unwanted expressions of Base center electrode from the spark plug prevented.
  • the edge length of the center electrodes and / or the Ground electrodes greater than 4 mm, preferably greater than 6 mm.
  • Another Improving the life of the electrodes is achieved in that the Electrodes of the center electrode support assembly a coating of precious metal and / or precious metal platelets.
  • a spark plug For producing such a spark plug provides a favorable method that the individually manufactured housing parts of the spark plug housing, via a standard standard insulator body pushed and / or pushed over each other and welded.
  • a standard insulator body for the production a spark plug according to the invention can be used, which the production costs significantly reduced for such a spark plug.
  • the housing parts be welded together by laser. It is particularly favorable about it
  • the center electrode carrier made in advance, flush on a Base center electrode of the insulator body pushed to the insulator base and is welded.
  • ground electrode carrier assembly with at least a portion of the spark plug housing welded or integrated in at least part of the spark plug housing is manufactured and that for welding a pulsed and / or continuously working laser welding process and / or electron beam welding process and / or plasma welding and / or high vacuum soldering and / or Electrode beam welding process and / or plasma welding process and / or high vacuum soldering and / or resistance welding technique becomes.
  • spark plug according to the invention is on a standard insulator body like him used commercially by various spark plug manufacturers is resorted to.
  • This insulator body 1 (usually made of ceramic) is under double-sided supplement a seal 2 inserted into a spark plug housing upper part 3.
  • the Spark plug housing lower part 4 is also pushed onto the insulator body 1.
  • upper and lower part 4 are preferably in Area of Isolatorwulst 15 pressed together. Being in the pre-stressed state the housing parts welded together by means of laser 5.
  • the upper housing 3 can be designed very stable pressure. A motor pressure conditional expressions of the insulator body 1 is thus prevented.
  • the welding process in the contact region 5 on the biased housing 3 are the housing components permanently biased and thus it comes to a seal between housing 3.4 - seal 2 and insulator body. 1
  • housing top and bottom 3,4 can weldable structural steels, Stainless steels and their alloys but also nickel-based alloys or Brass alloys are used.
  • the advantage of the brass housing is in the better heat dissipation.
  • Due to the selected bivalve shape of the housing can be a very compact High pressure candle with eg M18 x 1.5 thread 13 are made.
  • ground electrode carrier arrangement 6 can be provided on the motor side be applied.
  • a ground electrode support assembly 6 from Inco Alloy 600 (WNr 2.4816) welded by laser to the housing in area 7.
  • WNr 2.4816 nickel base alloys or High-temperature stainless steels are used.
  • ground electrode carrier arrangement 6 could also be made in one piece be made as an integral part of the housing base 4.
  • This construction makes it possible in relation to the compact Total component size to produce very long electrode erosion edges. It will be on the ground electrode support assembly noble metal plate 9 with an edge length greater than 4.0 mm used.
  • the edge length of the ground electrode 9 is 6.25 mm.
  • ground electrodes 9 come platelets with dimensions of 6.25 x 1.6 x 0.5 mm (other dimensions may be used).
  • Noble metal may e.g. Pt Rh alloys (90/10, 95/5, 80/20, 75/25) used become.
  • the welding process can be pulsed lasers, continuous lasers (CW lasers) , Electron beam welding or vacuum and Hochvakuumlötvon and plasma welding or Resistance welding technology can be used.
  • the base center electrode 12 of the insulator body 1 is provided with a Center electrode carrier 10 welded in the area 11.
  • the center electrode carrier 10 is placed on the base center electrode 12 pushed until it rests flush on the insulator base 14. In this position he will be with the base center electrode in the region 11 welded.
  • the Center electrode support 10 and the base center electrode 12 high pressure safe.
  • On Squeezing out of the insulator base of the base center electrode due to the Motor pressure is not possible since the welded to the base center electrode 12 Center electrode support 10 is shouldered 14 on 14 insulator base.
  • the Welded joint 11 between electrode carrier and electrode is through the Welding made with a pulsed laser. However, it can also be one continuous laser (CW laser), the electron beam welding process, a Soldering or resistance welding technology can be used.
  • the weld 11 may be along the entire length of the base center electrode 12 take place from the outside so by the center electrode carrier 10 on the Base center electrode 12 is welded through. It can be one or more Spot welds and one or more weld seams which in the Longitudinal axis if necessary several times on the circumference or radially if necessary several times on Scope can be arranged.
  • the center electrode carrier 10 is designed so that it has a good mixture accessibility allows.
  • the inventive design is an easy readjustment possible.
  • the center electrode carrier is designed so that center electrodes 8 with a Length greater than 4 mm can be welded. In the concrete invention the edge length of the center electrode 8 is 6, 25 mm.
  • the center electrode carrier 10 is designed with 4 separate electrode fingers on which precious metal electrodes are welded as center electrodes 8.
  • the center electrode arrangement 10 are provided with noble metal platelets as center electrodes 8 These are laser-sided or on both sides with the carrier welded. The weld is mounted so that at the electrode sides of the Gap is closed. That means between precious metal plates and Electrode carrier fingers, there is no open gap (or opening) through which Gas can enter.
  • Niobium nitride As a center electrode carrier material Inco Alloy 600 (WNr. 2.4816). As alternatives, other nickel-based alloys may also be used or high-temperature stainless steels are used.
  • center electrodes 8 come platelets with dimensions of 6.25 x 2.0 x 0.5 mm (other dimensions may be used).
  • Noble metal may e.g. Pt Rh alloys (90/10, 95/5, 80/20, 75/25) used become.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Spark Plugs (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Fats And Perfumes (AREA)

Claims (16)

  1. Bougie d'allumage d'un moteur à combustion, en particulier pour une utilisation sur des moteurs à allumage commandé, pourvue d'un corps d'isolateur (1), d'au moins un dispositif fixe de support d'électrodes de masse et d'au moins un support fixe d'électrodes centrales, où un culot de bougie d'allumage présentant au moins une partie supérieure de culot (3) et une partie inférieure de culot (4) entoure le corps d'isolateur (1) au moins partiellement, où au moins la partie côté chambre de combustion du corps d'isolateur (1) est entourée par la partie inférieure de culot (4) conjointement avec la partie supérieure de culot (3) de façon résistante à la pression, de préférence entièrement, caractérisée en ce que la partie supérieure de culot (3) et la partie inférieure de culot (4) sont soudées l'une avec l'autre.
  2. Bougie d'allumage selon la revendication 1, caractérisée en ce que les différentes parties (3, 4) du culot de bougie d'allumage sont vissées l'une au-dessus de l'autre dans leur zone de contact (5).
  3. Bougie d'allumage selon la revendication 1 ou 2, caractérisée en ce que la partie supérieure de culot (3) et la partie inférieure de culot (4) sont soudées l'une avec l'autre par laser.
  4. Bougie d'allumage selon l'une des revendications 1 à 3, caractérisée en ce que le corps d'isolateur (1) présente au moins un renflement (15), s'étendant de préférence sur toute sa périphérie, qui est disposé de préférence dans au moins une zone de contact (5) d'au moins deux parties de culot (3, 4).
  5. Bougie d'allumage selon la revendication 4, caractérisée en ce que la partie supérieure de culot (3) et la partie inférieure de culot (4) sont soudées l'une avec l'autre sur le renflement (15).
  6. Bougie d'allumage selon l'une quelconque des revendications 1 à 5, caractérisée en ce qu'au moins une partie du culot de bougie d'allumage présente un filetage (13) pour le vissage dans une culasse.
  7. Bougie d'allumage selon l'une quelconque des revendications 1 à 6, caractérisée en ce que les différentes parties (3, 4) du culot de bougie d'allumage sont fabriquées à partir de matériau électroconducteur et/ou en ce que les liaisons entre les différentes (3, 4) parties du culot de bougie d'allumage sont conçues de façon à être conductrices dans leur zone de contact respective (5).
  8. Bougie d'allumage selon l'une quelconque des revendications 1 à 7, caractérisée en ce que les différentes parties (3, 4) du culot de bougie présentent, de préférence chacune, au moins une étanchéité (2) par rapport au corps d'isolateur (1).
  9. Bougie d'allumage selon l'une quelconque des revendications 1 à 8, caractérisée en ce que le dispositif de support d'électrodes de masse (6) est disposé sur le culot de bougie d'allumage et présente au moins une électrode de masse (9).
  10. Bougie d'allumage selon l'une quelconque des revendications 1 à 9, caractérisée en ce que le dispositif de support d'électrodes de masse (6) présente des électrodes de masse (9), de préférence quatre disposées perpendiculairement les unes par rapport aux autres, plates, et de préférence dirigées vers l'intérieur.
  11. Bougie d'allumage selon l'une quelconque des revendications 1 à 10, caractérisée en ce qu'au moins une électrode de masse (9) et/ou au moins un dispositif de support d'électrodes de masse (6) sont soudés avec au moins une partie (4) du culot de bougie d'allumage et/ou sont intégrés dans au moins une partie (4) du culot de bougie d'allumage.
  12. Bougie d'allumage selon l'une quelconque des revendications 1 à 11, caractérisée en ce qu'au moins une électrode centrale (8), de préférence les quatre disposées à angle droit les unes par rapport aux autres, plates, de préférence dirigées vers l'extérieur, est (sont) disposée(s) sur le support d'électrodes centrales (10).
  13. Procédé pour la fabrication d'une bougie d'allumage selon l'une quelconque des revendications 1 à 12, caractérisé en ce que les différentes parties (3, 4) du culot de bougie sont fabriquées individuellement, glissées par-dessus un corps d'isolateur standard (1) classique et/ou sont glissées les unes au-dessus des autres et soudées.
  14. Procédé selon la revendication 13, caractérisé en ce que les parties du culot (3, 4) sont soudées l'une avec l'autre par laser.
  15. Procédé selon la revendication 13 ou 14, caractérisé en ce que le support d'électrodes centrales (10) est fabriqué auparavant, est enfilé en affleurement sur une électrode centrale de base (12) du corps d'isolateur (1) jusqu'au socle d'isolateur (14) et est soudé.
  16. Procédé selon l'une quelconque des revendications 13 à 15, caractérisé en ce que le support d'électrodes de masse (6) est soudé avec au moins une partie (4) du culot de bougie ou est fabriqué de façon intégrée dans au moins une partie (4) du culot de bougie.
EP02010192A 2001-06-05 2002-05-15 Bougie d'allumage d'un moteur à combustion interne Expired - Lifetime EP1265328B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0086701A AT410150B (de) 2001-06-05 2001-06-05 Zündkerze einer brennkraftmaschine
AT8672001 2001-06-05
US10/164,045 US6992426B2 (en) 2001-06-05 2002-06-05 Spark plug of an internal combustion engine

Publications (2)

Publication Number Publication Date
EP1265328A1 EP1265328A1 (fr) 2002-12-11
EP1265328B1 true EP1265328B1 (fr) 2004-03-10

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EP02010192A Expired - Lifetime EP1265328B1 (fr) 2001-06-05 2002-05-15 Bougie d'allumage d'un moteur à combustion interne

Country Status (8)

Country Link
US (1) US6992426B2 (fr)
EP (1) EP1265328B1 (fr)
JP (1) JP2003036953A (fr)
AT (2) AT410150B (fr)
DE (1) DE50200279D1 (fr)
DK (1) DK1265328T3 (fr)
ES (1) ES2215953T3 (fr)
PT (1) PT1265328E (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006043593B3 (de) * 2006-09-16 2008-04-10 Multitorch Gmbh Zündkerze

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT413904B (de) * 2003-09-19 2006-07-15 Ge Jenbacher Ag Zündkerze
AT506140B1 (de) * 2007-11-05 2009-11-15 Francesconi Christian Zündkerze
JP5113106B2 (ja) 2008-03-07 2013-01-09 日本特殊陶業株式会社 プラズマジェット点火プラグの製造方法
US7944135B2 (en) * 2008-08-29 2011-05-17 Federal-Mogul Ignition Company Spark plug and methods of construction thereof
AT510582B1 (de) * 2011-02-21 2012-05-15 Francesconi Christian Zündkerze
DE102011006620A1 (de) 2011-04-01 2012-10-04 Osram Ag Verfahren zum Herstellen einer Wicklung zur Herstellung von Elektroden für Entladungslampen, Wicklung zur Herstellung von Elektroden für Entladungslampen sowie Verfahren zur Herstellung einer Elektrode für Entladungslampen
US9028289B2 (en) 2011-12-13 2015-05-12 Federal-Mogul Ignition Company Electron beam welded electrode for industrial spark plugs
DE102017117452B4 (de) 2016-08-16 2022-02-10 Federal-Mogul Ignition Gmbh Zündkerze und Verfahren zu ihrer Herstellung

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DE609353C (de) * 1933-09-05 1935-02-13 Geis G M B H Zuendkerze
GB2249345A (en) * 1990-11-02 1992-05-06 Hsu Chin Hsin Spark plug

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GB156087A (en) * 1919-12-26 1921-04-07 Champion Ignition Co Two-piece spark plug
GB247491A (en) * 1925-07-02 1926-02-18 Carl Johan Eligius Isaksson Improvements in or relating to sparking plugs for internal combustion engines
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US2941363A (en) * 1955-04-11 1960-06-21 Bendix Aviat Corp Dual baffled igniter for combustion chamber
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US3825784A (en) * 1972-09-25 1974-07-23 M Lindsay Body controlled heat range and extended gap spark plug
CH624509A5 (fr) * 1980-05-30 1981-07-31 Espada Anstalt
DE3217951A1 (de) * 1982-05-13 1983-11-17 Robert Bosch Gmbh, 7000 Stuttgart Zuendkerze fuer brennkraftmaschinen
US5430346A (en) * 1989-10-13 1995-07-04 Ultra Performance International, Inc. Spark plug with a ground electrode concentrically disposed to a central electrode and having precious metal on firing surfaces
US5014656A (en) * 1990-04-25 1991-05-14 General Motors Corporation Internal combustion engine having a permanent ground electrode and replaceable center electrode element
US5456624A (en) 1994-03-17 1995-10-10 Alliedsignal Inc. Spark plug with fine wire rivet firing tips and method for its manufacture
JP3196601B2 (ja) 1995-10-11 2001-08-06 株式会社デンソー 内燃機関用スパークプラグの製造方法
US5918571A (en) * 1996-02-16 1999-07-06 Allied Signal Inc. Dual electrode high thread spark plug
EP0834973B1 (fr) 1996-10-04 2001-04-18 Denso Corporation Bougie d'allumage et sa méthode de fabrication
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Publication number Priority date Publication date Assignee Title
DE609353C (de) * 1933-09-05 1935-02-13 Geis G M B H Zuendkerze
GB2249345A (en) * 1990-11-02 1992-05-06 Hsu Chin Hsin Spark plug

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006043593B3 (de) * 2006-09-16 2008-04-10 Multitorch Gmbh Zündkerze

Also Published As

Publication number Publication date
ES2215953T3 (es) 2004-10-16
US6992426B2 (en) 2006-01-31
DE50200279D1 (de) 2004-04-15
AT410150B (de) 2003-02-25
DK1265328T3 (da) 2004-07-12
JP2003036953A (ja) 2003-02-07
PT1265328E (pt) 2004-07-30
ATA8672001A (de) 2002-06-15
EP1265328A1 (fr) 2002-12-11
ATE261621T1 (de) 2004-03-15
US20040070323A1 (en) 2004-04-15

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