EP0859436A1 - Zündkerze für eine Brennkraftmaschine und Verfahren zu ihrer Herstellung - Google Patents
Zündkerze für eine Brennkraftmaschine und Verfahren zu ihrer Herstellung Download PDFInfo
- Publication number
- EP0859436A1 EP0859436A1 EP98102016A EP98102016A EP0859436A1 EP 0859436 A1 EP0859436 A1 EP 0859436A1 EP 98102016 A EP98102016 A EP 98102016A EP 98102016 A EP98102016 A EP 98102016A EP 0859436 A1 EP0859436 A1 EP 0859436A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spark plug
- electrode
- plug according
- spark
- precious metal
- 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
Links
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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
-
- 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 one, in particular gas-fired internal combustion engine according to the generic term of claim 1.
- a spark plug is from the WO91 / 06142 known.
- spark plugs for Internal combustion engines are currently increasing significantly, particularly applies to spark plugs that are used in stationary, large-volume, high-pressure, gas-fired internal combustion engines should be used. Spark plugs for this purpose are said to have a long term in the order of have at least 5000 hours. Because such internal combustion engines Working with high pressure must pay special attention to the electrode gap be placed. Real electrode distances of 0.2 nominally set to 0.3 mm, which means that with a Experience has shown that the ignition limit of such internal combustion engines 0.5 to 0.6 mm the potential burn-up reservoir of 0.2 up to 0.3 mm is quickly used up and the ignition limit is reached quickly.
- the spark plugs currently available what does not meet the demand for a long life results in an expensive spark plug change.
- the object underlying the invention is therefore therein, a spark plug according to the preamble of the claim 1 trained so that it has a longer term.
- spark plug according to the invention can due to the Precious metal armouring small ignition gaps are formed and the electrode distance can be kept constant for a very long time.
- a large spark outlet area can be provided so that the expectations regarding the long service life can be met.
- the spark plug according to the invention can optimally develop the spark position, that is, the spark gap as far as possible in the combustion chamber in order to to ignite even extremely lean mixtures without interruptions.
- the invention further relates to a method for Manufacture of the spark plug according to the invention, the subject of Claim 16 is.
- Spark plug comprises a metallic body 1 Screw-in thread, in the center of which a ceramic insulator 2 is arranged. As shown in Fig. 1, it is a spark plug with a distorted spark position, at the insulator 2 over the front edge of the metallic body 1 also protrudes into the combustion chamber of the internal combustion engine.
- a central electrode 3 is located in the center of the ceramic insulator 2 provided that together with a ground electrode 4 an ignition gap ZS forms for the formation of an ignition spark.
- the ground electrode 4 is electrically connected to the metallic body 1 and formed in the form of a ring electrode which the encloses the entire circumference of the center electrode 3.
- this is between the center electrode 3 and the ring electrode 4 ring-shaped formed that the entire jacket area of the center electrode 3 and the inner surface of the bore of the ring electrode 4 as a spark outlet surface can be used and as a burn-up reserve is available.
- the life of the spark plug with one such spark gap training is through the use of a erosion-resistant material namely a precious metal such as platinum or a platinum alloy significantly increased.
- a erosion-resistant material namely a precious metal such as platinum or a platinum alloy significantly increased.
- Fig. 1 is shown for this purpose in the entire area of the spark gap the potential spark outlet surface is lined with the precious metal.
- the center electrode 3 is in the area on the ignition side, i.e.
- the ring electrode 4 is on the inside i.e. on the surface delimiting the ignition gap with a Precious metal socket 6 provided.
- the precious metal sleeve 5 and the precious metal bushing 6 consist in particular of platinum or a platinum alloy.
- the ring electrode 4 is bent and at an angle ⁇ connected to the body 1.
- a taper at the ignition end of the center electrode 3 provided, on which the precious metal sleeve 5 is pushed or is pressed on.
- At the front of the center electrode 3 is for example, by countersinking or drilling a depression trained so that there is an annular rim.
- This Board is crimped over the noble metal sleeve 5, whereby a positive connection is achieved.
- the precious metal sleeve 5 can also be welded to the center electrode 3.
- the noble metal bushing 6 is thereby on the ring electrode 4 attached that the noble metal bushing 6 in the in the ring electrode 4 hole is inserted and pressed in and in such a way that the noble metal bushing 6 protrudes annularly over the ring electrode 4.
- the protruding one Edge of the precious metal bushing 6 is crimped or riveted to to achieve a positive connection. Even the precious metal bushing 6 can also be welded to the ring electrode 4 be.
- the ring electrode 4 is preferably bell-shaped bent at an angle ⁇ of 10 ° to 30 °. Through this weird Employing the ring electrode 4 is less metal surface Exposed to heat of combustion, so that the ring electrode 4 at Operation tends to lower glow ignitions.
- the ring electrode 4 preferably star-shaped with three memory-like tines, the bell-shaped and bent at the ends of the Body 1 are welded.
- the ring electrode 4 can with more be formed as three spoke-like teeth or only have two spokes, as shown in Fig. 4.
- At the embodiment shown in Fig. 4 follows a bow-like ring electrode when bending the prongs. This The embodiment shown in Fig. 4 has the special one The advantage of better washing around the mixture and a reduction the quenching effect, e.g. prevention of flame spread.
- Electrode ring tapers To expose less metal surface to the heat of combustion are also the memory-like spikes of the ring electrode 4 for Electrode ring tapers so that the cross section of the ring electrode 4 to the cold part of the body 1 is getting bigger and bigger optimal heat dissipation is guaranteed.
- Electrode distance ZS formed with a gap Sp1 so that the Electrode spacing, i.e. the ignition gap ZS and the gap Sp1 between the insulator tip and the lower edge of the ring electrode 4 are designed at least in a ratio of 1: 1, and according to Use up the air spark gap ZS a spark as a combined Form glide and air spark between the gap Sp1 can.
- Fig. 5 shows the work sequence of the manufacture of the center electrode 3 with a noble metal sleeve, in particular a platinum sleeve 5.
- Fig. 5A shows the center electrode 3 on the ignition side End, for example, by turning, reducing or cold extrusion is rejuvenated.
- the face of the center electrode 3 is with a recess 7, for example by sinking or Countersink drilling so that there is between the taper 8 and the recess 7 results in an annular rim 9.
- the platinum sleeve 5 over the Center electrode 3 added, i.e. in particular pushed or pressed.
- the platinum sleeve 5 with the Center electrode 3 by folding the board 9 form-safe assembled.
- the platinum sleeve 5 with the center electrode 3 after folding additionally welded or soldered.
- Fig. 6 shows the steps in the manufacture of the Ring electrode 4 in the embodiment shown in Fig. 3.
- the Outer and the inner contour of the ring electrode 4 in one piece a metal band e.g. a nickel band or a nickel alloy band made for example by stamping.
- the ring electrode 4 curved bell-shaped.
- the ring electrode 4 is reinforced with a noble metal bush 6.
- the noble metal bushing 6 is in the bore 10 of the Ring electrode 3 pressed and then the protruding Ends of the precious metal bushing 6 flanged by a to achieve form-safe reinforcement, as shown in Fig. 6D is.
- the connection between the noble metal bushing 6 and the ring electrode 4 can also be welded or soldered will.
- the ring electrode 4 made of Inconel to a good connection between the platinum socket and the Inconel ring electrode to achieve.
- the ring electrode 4 and / or the noble metal bush 6 can continue to be made from a two-material material, e.g. consists of nickel with a platinum coating. For cost reasons is then the carrier material nickel and is the erosion-resistant Platinum plating formed by surface plating. Thereby the consumption of high quality precious metal can be as low as keep possible.
- the precious metal reinforcements by mechanical Attachment, for example, by flanging and pressing. Welding the precious metal reinforcements after assembly offers an additional backup. In this way the precious metal large area, so that no concentricity problems of the Arrangement of the precious metal occur.
- FIGS. 7 and 8 show a special preferred embodiment of a method of attachment the ring electrode 4 described on the body 1.
- a centering groove 11 for the Ring electrode 4 are provided concentrically in the body 1
- Welding cams are formed on the ring electrode 4 and is then the ring electrode 4 with the welding cams in the center Arrangement in the centering groove 11 with the body 1 welded.
- the central assembly of the ring electrode 4 thus achieved leads to a uniform electrode spacing and a uniform one Heat dissipation. In this way two, three or four-pole spark plugs made of ring electrodes for 14 and 18 series Threads are manufactured.
Landscapes
- Spark Plugs (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
Description
Claims (16)
- Zündkerze für eine insbesondere mit Gas befeuerte Brennkraftmaschine miteinem elektrisch leitenden Zündkerzenkörper,einer Mittelelektrode, die im Zündkerzenkörper und demgegenüber elektrisch isoliert angeordnet ist und vom Zündkerzenkörper vorsteht, undeiner Masseelektrode, die mit dem Zündkerzenkörper elektrisch verbunden und in Form einer Ringelektrode ausgebildet ist, die den vorstehenden Teil der Mittelektrode mit einem dazwischen gebildeten ringförmigen Zündspalt umgibt, dadurch gekennzeichnet, daß,die Mittelelektrode (3) an ihrer den Zündspalt begrenzenden Mantelfläche mit einer Edelmetallarmierung versehen ist.
- Zündkerze nach Anspruch 1, dadurch gekennzeichnet, daß die Ringelektrode (4) an ihrer den Zündspalt begrenzten Ringfläche mit einer Edelmetallarmierung versehen ist.
- Zündkerze nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Edelmetallarmierung an der Ringelektrode (4) aus einer Edelmetallbuchse (6) und an der Mittelelektrode (3) aus einer Edelmetallhülse (5) besteht.
- Zündkerze nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Ringelektrode aus Nickel oder einer Nickellegierung besteht.
- Zündkerze nach einem der Ansprüch 1 bis 3, dadurch gekennzeichnet, daß die Ringelektrode (4) aus Inconel besteht und das Edelmetall der Edelmetallarmierung Platin oder eine Platinlegierung ist.
- Zündkerze nach einer der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Edelmetallarmierung der Mittelelektrode (3) und/oder die Ringelektrode (4) aus einem Zweistoffmaterial bestehen.
- Zündkerze nach Anspruch 6, dadurch gekennzeichnet, daß das Zündstoffmaterial Nickel oder eine Nickellegierung als Trägermaterial mit einer Platinauflage ist.
- Zündkerze nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die in Form einer Ringelektrode ausgebildetem Masseelektrode (4) über sternförmige Speichen mit dem Zündkerzenkörper (1) verbunden ist, wobei der ringförmige Zündspalt zwischen einer Bohrung (10) in der Masseelektrode (4) und der Mittelelektrode (3) gebildet ist.
- Zündkerze nach einem der vorhergehenden Ansprüche, gekennzeichnet durch eine zusätzlich vorgesehene Gleitfunkenstrecke, die zwischen der Isolatorfußspitze und der Unterkante der Masseelektrode (4) ausgebildet ist.
- Zündkerze nach Anspruch 6, dadurch gekennzeichnet, daß die Luftfunkenstrecke des Zündspaltes und die Gleitfunkenstrecke im Verhältnis von 1:1 stehen.
- Zündkerze nach Anspruch 8, dadurch gekennzeichnet, daß die sternförmigen Speichen der Masseelektrode (4) glockenartig angeschrägt sind.
- Zündkerze nach Anspruch 11, dadurch gekennzeichnet, daß der Anschrägungswinkel 10° bis 30° beträgt.
- Zündkerze nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Funkenlage vorgezogen ist.
- Zündkerze nach Anspruch 13, dadurch gekennzeichnet, daß die Funkenlage 6mm beträgt.
- Zündkerze nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Masseelektrode (4) aus Inconel gebildet ist.
- Verfahren zum Herstellen einer Zündkerze nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daR im Zündkerzenkörper (1) eine konzentrische Zentrierungsrille (11) für die Masseelektrode (4) vorgesehen wird, Schweißnocken an die Masseelektrode (4) angeformt werden und die Masseelektrode (4) mit den Schweißnocken in die Zentrierungsrille (11) des Zündkerzenkörpers (1) eingesetzt und damit verschweißt wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19705372 | 1997-02-12 | ||
DE19705372A DE19705372C2 (de) | 1997-02-12 | 1997-02-12 | Zündkerze für eine Brennkraftmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0859436A1 true EP0859436A1 (de) | 1998-08-19 |
EP0859436B1 EP0859436B1 (de) | 2000-07-19 |
Family
ID=7820038
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98102016A Expired - Lifetime EP0859436B1 (de) | 1997-02-12 | 1998-02-05 | Zündkerze für eine Brennkraftmaschine |
Country Status (5)
Country | Link |
---|---|
US (1) | US6064144A (de) |
EP (1) | EP0859436B1 (de) |
AT (1) | ATE194886T1 (de) |
DE (2) | DE19705372C2 (de) |
ES (1) | ES2149621T3 (de) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1137129A2 (de) * | 2000-03-15 | 2001-09-26 | Nec Corporation | Ausgleichsverfahren und Vorrichtung für optische Verstärkung |
WO2008055483A1 (de) * | 2006-11-08 | 2008-05-15 | Beru Aktiengesellschaft | Zündeinrichtung, insbesondere zündkerze für eine verbrennungskraftmaschine und verfahren zur herstellung |
CN110445014A (zh) * | 2018-05-03 | 2019-11-12 | 曼恩能源方案有限公司 | 用于内燃发动机的火花塞 |
WO2020124103A1 (de) | 2018-12-21 | 2020-06-25 | Innio Jenbacher Gmbh & Co Og | Zündkerze und verfahren zur herstellung einer zündkerze |
WO2021253061A1 (en) | 2020-06-18 | 2021-12-23 | Innio Jenbacher Gmbh & Co Og | Method for manufacturing an assembly for a spark plug and spark plug |
WO2022053197A1 (de) * | 2020-09-10 | 2022-03-17 | Robert Bosch Gmbh | Vorkammerzündkerze mit verbesserter masseelektrode |
AT525737B1 (de) * | 2022-06-28 | 2023-07-15 | Lec Gmbh | Zündkerze |
Families Citing this family (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19854861A1 (de) * | 1998-11-27 | 2000-05-31 | Beru Ag | Zündkerze |
US6080029A (en) | 1999-08-05 | 2000-06-27 | Halo, Inc. | Method of manufacturing a spark plug with ground electrode concentrically disposed to a central electrode |
DE60001796T2 (de) * | 1999-12-22 | 2004-02-05 | NGK Spark Plug Co., Ltd., Nagoya | Zündkerze für Verbrennungsmotor |
JP2002216930A (ja) * | 2001-01-18 | 2002-08-02 | Denso Corp | プラグ用電極の製造方法 |
JP2008504649A (ja) * | 2004-06-24 | 2008-02-14 | ウッドワード・ガバナー・カンパニー | 手動ロック安全装置付高温限度サーモスタット |
DE102004033880B4 (de) * | 2004-07-13 | 2009-12-31 | Beru Ag | Zündkerze für eine Brennkraftmaschine |
DE102004050291B4 (de) * | 2004-10-15 | 2009-09-24 | Bayerische Motoren Werke Aktiengesellschaft | Zündkerze für einen Wasserstoffmotor |
US7922551B2 (en) * | 2005-06-07 | 2011-04-12 | Woodward, Inc. | Pre-chamber spark plug |
US7521849B2 (en) * | 2005-09-29 | 2009-04-21 | Federal-Mogul World Wide, Inc. | Spark plug with welded sleeve on electrode |
US20090140623A1 (en) * | 2007-11-30 | 2009-06-04 | Hector Ugalde | Spark plug |
US8461750B2 (en) * | 2009-09-11 | 2013-06-11 | Woodward, Inc. | Pre-chamber spark plug and electrodes therefor |
DE102010004851B4 (de) | 2009-12-18 | 2014-05-28 | Federal-Mogul Ignition Gmbh | Vorkammer-Zündkerze für eine mit Gas betriebene Brennkraftmaschine |
US9172217B2 (en) | 2010-11-23 | 2015-10-27 | Woodward, Inc. | Pre-chamber spark plug with tubular electrode and method of manufacturing same |
US8584648B2 (en) | 2010-11-23 | 2013-11-19 | Woodward, Inc. | Controlled spark ignited flame kernel flow |
US9476347B2 (en) | 2010-11-23 | 2016-10-25 | Woodward, Inc. | Controlled spark ignited flame kernel flow in fuel-fed prechambers |
DE102011076471B4 (de) | 2011-05-25 | 2016-02-18 | Mtu Friedrichshafen Gmbh | Vorkammerzündkerze und Gasmotor mit einer solchen Vorkammerzündkerze |
JP5988628B2 (ja) * | 2012-01-10 | 2016-09-07 | ウッドワード,インコーポレーテッドWoodward,Inc. | 燃料供給機能を有するプレチャンバスパークプラグにおけるスパーク点火火炎核流れの制御 |
US9856848B2 (en) | 2013-01-08 | 2018-01-02 | Woodward, Inc. | Quiescent chamber hot gas igniter |
JP6023649B2 (ja) * | 2013-05-09 | 2016-11-09 | 日本特殊陶業株式会社 | スパークプラグ |
US9765682B2 (en) | 2013-06-10 | 2017-09-19 | Woodward, Inc. | Multi-chamber igniter |
US8839762B1 (en) | 2013-06-10 | 2014-09-23 | Woodward, Inc. | Multi-chamber igniter |
JP5643878B1 (ja) * | 2013-06-11 | 2014-12-17 | 日本特殊陶業株式会社 | スパークプラグ |
DE102013109278B4 (de) * | 2013-08-27 | 2017-12-07 | Federal-Mogul Ignition Gmbh | Zündkerze für eine mit Gas betriebene Brennkraftmaschine |
JP5847259B2 (ja) | 2013-11-12 | 2016-01-20 | 日本特殊陶業株式会社 | スパークプラグ |
JP5981975B2 (ja) | 2013-11-26 | 2016-08-31 | 日本特殊陶業株式会社 | スパークプラグ |
DE102014117714B4 (de) * | 2014-12-02 | 2016-06-09 | Federal-Mogul Ignition Gmbh | Zündkerze für eine mit Gas betriebene Brennkraftmaschine |
DE102015102745B4 (de) | 2015-02-26 | 2016-11-17 | Federal-Mogul Ignition Gmbh | Zündkerze für einen Vorkammer-Verbrennungsmotor |
US9840963B2 (en) | 2015-03-20 | 2017-12-12 | Woodward, Inc. | Parallel prechamber ignition system |
US9653886B2 (en) | 2015-03-20 | 2017-05-16 | Woodward, Inc. | Cap shielded ignition system |
DE102015113175A1 (de) * | 2015-08-10 | 2016-09-29 | Federal-Mogul Ignition Gmbh | Zündkerze |
US9890689B2 (en) | 2015-10-29 | 2018-02-13 | Woodward, Inc. | Gaseous fuel combustion |
US9653887B1 (en) | 2016-08-18 | 2017-05-16 | Federal-Mogul Ignition Gmbh | Spark plug for a prechamber internal combustion engine |
DE102018101512B4 (de) * | 2018-01-24 | 2020-03-19 | Federal-Mogul Ignition Gmbh | Verfahren zum Herstellen einer Elektrodenanordnung, Elektrodenanordnung und Zündkerze |
DE102018010339B3 (de) | 2018-01-24 | 2023-02-09 | Federal-Mogul Ignition Gmbh | Elektrodenanordnung für eine Zündkerze und Zündkerze mit einer solchen |
DE102018110571A1 (de) * | 2018-05-03 | 2019-11-07 | Man Energy Solutions Se | Zündkerze für eine Brennkraftmaschine |
DE102018212894A1 (de) * | 2018-08-02 | 2020-02-06 | Robert Bosch Gmbh | Verfahren zur Herstellung einer Zündkerzenelektrodenanordnung und einer Zündkerze, Zündkerzenelektrodenanordnung und Zündkerze |
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GB588074A (en) * | 1944-01-29 | 1947-05-13 | Mallory Metallurg Prod Ltd | Improvements in and connected with sparking plugs |
JPH01289084A (ja) * | 1988-05-16 | 1989-11-21 | Ngk Spark Plug Co Ltd | 内燃機関用スパークプラグの製造方法 |
US5408961A (en) * | 1993-08-09 | 1995-04-25 | Innovative Automative Technologies Int. Ltd. | Ignition plug |
JPH08171976A (ja) * | 1994-12-16 | 1996-07-02 | Nippondenso Co Ltd | 内燃機関用スパークプラグ |
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JPS5349643A (en) * | 1976-10-19 | 1978-05-06 | Ngk Spark Plug Co Ltd | Rear electrode type spark plug with long discharge gap |
DE3619938A1 (de) * | 1986-06-13 | 1987-12-17 | Bayerische Motoren Werke Ag | Zuendkerze fuer brennkraftmaschinen |
DE8906871U1 (de) * | 1989-06-05 | 1989-07-20 | G. Rau GmbH & Co, 7530 Pforzheim | Mittelelektrode für Zündkerzen von Brennkraftmaschinen |
JPH04503731A (ja) * | 1989-10-13 | 1992-07-02 | ウルトラ パーフォーマンス インターナショナル | リング/開リング型接地電極を有した点火プラグ |
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 |
DE4422939C2 (de) * | 1994-06-30 | 2000-05-31 | Bosch Gmbh Robert | Zündkerze für eine Brennkraftmaschine |
-
1997
- 1997-02-12 DE DE19705372A patent/DE19705372C2/de not_active Expired - Fee Related
-
1998
- 1998-02-05 AT AT98102016T patent/ATE194886T1/de not_active IP Right Cessation
- 1998-02-05 DE DE59800197T patent/DE59800197D1/de not_active Expired - Lifetime
- 1998-02-05 EP EP98102016A patent/EP0859436B1/de not_active Expired - Lifetime
- 1998-02-05 ES ES98102016T patent/ES2149621T3/es not_active Expired - Lifetime
- 1998-02-12 US US09/022,440 patent/US6064144A/en not_active Expired - Fee Related
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GB588074A (en) * | 1944-01-29 | 1947-05-13 | Mallory Metallurg Prod Ltd | Improvements in and connected with sparking plugs |
US2416107A (en) * | 1945-03-28 | 1947-02-18 | Bendix Aviat Corp | Spark plug |
JPH01289084A (ja) * | 1988-05-16 | 1989-11-21 | Ngk Spark Plug Co Ltd | 内燃機関用スパークプラグの製造方法 |
US5408961A (en) * | 1993-08-09 | 1995-04-25 | Innovative Automative Technologies Int. Ltd. | Ignition plug |
JPH08171976A (ja) * | 1994-12-16 | 1996-07-02 | Nippondenso Co Ltd | 内燃機関用スパークプラグ |
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Title |
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PATENT ABSTRACTS OF JAPAN vol. 014, no. 070 (E - 0886) 8 February 1990 (1990-02-08) * |
PATENT ABSTRACTS OF JAPAN vol. 096, no. 011 29 November 1996 (1996-11-29) * |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1137129A2 (de) * | 2000-03-15 | 2001-09-26 | Nec Corporation | Ausgleichsverfahren und Vorrichtung für optische Verstärkung |
EP1137129A3 (de) * | 2000-03-15 | 2002-10-02 | Nec Corporation | Ausgleichsverfahren und Vorrichtung für optische Verstärkung |
WO2008055483A1 (de) * | 2006-11-08 | 2008-05-15 | Beru Aktiengesellschaft | Zündeinrichtung, insbesondere zündkerze für eine verbrennungskraftmaschine und verfahren zur herstellung |
CN110445014A (zh) * | 2018-05-03 | 2019-11-12 | 曼恩能源方案有限公司 | 用于内燃发动机的火花塞 |
CN110445014B (zh) * | 2018-05-03 | 2022-03-11 | 曼恩能源方案有限公司 | 用于内燃发动机的火花塞 |
WO2020124103A1 (de) | 2018-12-21 | 2020-06-25 | Innio Jenbacher Gmbh & Co Og | Zündkerze und verfahren zur herstellung einer zündkerze |
WO2021253061A1 (en) | 2020-06-18 | 2021-12-23 | Innio Jenbacher Gmbh & Co Og | Method for manufacturing an assembly for a spark plug and spark plug |
US12027828B2 (en) | 2020-06-18 | 2024-07-02 | Innio Jenbacher Gmbh & Co Og | Method for manufacturing an assembly for a spark plug and spark plug |
WO2022053197A1 (de) * | 2020-09-10 | 2022-03-17 | Robert Bosch Gmbh | Vorkammerzündkerze mit verbesserter masseelektrode |
AT525737B1 (de) * | 2022-06-28 | 2023-07-15 | Lec Gmbh | Zündkerze |
AT525737A4 (de) * | 2022-06-28 | 2023-07-15 | Lec Gmbh | Zündkerze |
Also Published As
Publication number | Publication date |
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DE59800197D1 (de) | 2000-08-24 |
US6064144A (en) | 2000-05-16 |
DE19705372C2 (de) | 2002-06-27 |
DE19705372A1 (de) | 1998-08-20 |
ES2149621T3 (es) | 2000-11-01 |
ATE194886T1 (de) | 2000-08-15 |
EP0859436B1 (de) | 2000-07-19 |
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