EP0537231A1 - Zündkerze. - Google Patents
Zündkerze.Info
- Publication number
- EP0537231A1 EP0537231A1 EP91912246A EP91912246A EP0537231A1 EP 0537231 A1 EP0537231 A1 EP 0537231A1 EP 91912246 A EP91912246 A EP 91912246A EP 91912246 A EP91912246 A EP 91912246A EP 0537231 A1 EP0537231 A1 EP 0537231A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- attachment part
- electrode
- prism
- platinum
- spark plug
- 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
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 with a central electrode insulated from the candle thread and with ground electrodes electrically connected to the candle thread, an attachment part at least partially, preferably made of platinum or a platinum alloy, between the and the spark gaps lie in the mass electrodes brought up to it from the side.
- spark plugs which have a very high stability, in particular a low erosion of the electrodes and which can nevertheless be operated with relatively low ignition voltages. If necessary, there should be a convenient readjustment option with a defined electrode spacing.
- the attachment part essentially has the shape of a prism with the cover surface facing the combustion chamber and the ground electrodes laterally next to the side surfaces of the essentially prism-shaped attachment part essentially parallel to the prism edges of the cover surface or Area extend, and that the Massen ⁇ electrode tall from at least one support of base Me ⁇ or semi-precious metal, are preferably be ⁇ of nickel, on the attachment part of the Mi teleketrode inlet facing a thin electrode layer of platinum 'or a platinum alloy is arranged.
- the spark gaps are located between the attachment part and the mass electrodes running laterally next to the attachment part, essentially parallel to the prism edges of the cover surface or the base surface, and thus practically surround the entire prism-shaped attachment part. Due to the parallel guidance of the mass electrodes to the side surfaces of the prism-shaped attachment part made of platinum, the electrode erosion, which is only present to a small extent, is also relatively uniform, so that, if necessary, simple adjustment with a well-defined electrode spacing is possible.
- the attachment part on the center electrode essentially depends on the outer shape, in particular the long prism edges, while the base area generally at least contributes to the connection of the attachment part to the center electrode.
- the regions of the prism-shaped attachment part lying in the corner stretch are made of platinum or a platinum alloy, while the central part can consist of base metal and / or semi-precious metal.
- a fixed connection of the attachment part to the center electrode is possible at the same time, and moreover a material saving on expensive platinum.
- the attachment part has the shape of a straight prism with a square base or top surface.
- two side faces of the attachment part are detected with one mass electrode, particularly high field strengths occurring between the prism height edges and the inside angle of the angled mass electrodes.
- the bulk electrodes consist of at least one base metal or semi-precious metal, preferably nickel, on which a thin electrode layer made of platinum or a platinum alloy is arranged facing the top part of the central electrode.
- the mass electrode carrier consists of base metal or semi-precious metal, it does not have to be made in a material-saving manner, which causes a good heat flow over the mass electrode carrier follows.
- the thin electrode layer made of platinum or a platinum alloy can be welded or soldered onto the carrier in the form of thin rods. Instead of this, however, it is also possible to apply the thin electrode layer made of platinum or the platinum alloy to the carrier as a covering, for example by vapor deposition. It is sufficient if the thin electrode layer consisting of platinum or a platinum alloy has a layer thickness of less than 1 mm. The layer thickness can preferably be in the order of magnitude of approximately 0.1 mm to approximately 0.5 mm.
- a further feature of the invention is that two mass electrodes are combined to form a V or Y-shaped component in plan view, the two V or Y electrode arms running at least approximately parallel to two side surfaces of the attachment part of the center electrode and from the apex the electrode arms a common web leads to the mass of the spark plug.
- This design ensures good stability of the mass electrodes. Furthermore, this design also has a favorable effect on the adjustability of the electrode spacing between the ground electrodes and the center electrode, with two electrode arms being adjustable together and simultaneously.
- the V- or Y-shaped component of the mass electrodes can be made of any metal, but preferably of semi-precious metal such as nickel, or of noble metal such as platinum.
- Suitable metal alloys or metal combinations for example in such a way that the V- or Y-shaped component consists of a semi-precious metal as a carrier for a thin electrode layer made of precious metal, in particular of platinum or a platinum alloy.
- FIG. 1 shows a side view of a spark plug according to the invention.
- 2 shows an enlarged plan view of the head of the spark plug facing the combustion chamber.
- Fig. 3 is a side view of Fig. 2 in the direction of arrow III in Fig. 2.
- Fig. 4 shows the central electrode in section.
- FIG. 5 shows a further embodiment of a spark plug according to the invention seen in a top view from the combustion chamber.
- FIG. 6 is an associated side view in the direction of arrow VI of FIG. 5.
- the spark plug shown in FIG. 1 has an insulating body 1 for isolating the central central electrode 2 from the metal housing 3 which is in operation during operation and which is formed in one piece with a hexagon nut 4 and a threaded part 5.
- the center electrode 2 has a prism-shaped attachment part 7 which is square in plan view and which consists of a platinum-rhodium alloy.
- the prism-shaped attachment part is carried by a pin-shaped part of the central electrode which projects into a central opening of the attachment part 7 and is welded or soldered to it.
- This pin-shaped part consists, for example, of a core 2A made of copper and a sleeve 2B made of nickel (FIG. 4).
- the ground electrodes 8, 9 of the spark plug each consist of a carrier 8A, 8B, 9A, 9B made of base metal or semi-precious metal, for example nickel, connected to the ground ring 5A of the threaded part 5, on its arms 8B, 9B, the prism-shaped attachment part 7 Facing the center electrode 2, a thin layer 8C, 9C made of platinum or a platinum alloy, for example a platinum-rhodium alloy, is arranged, for example welded or soldered on.
- the carrier 8A, 8B or 9A, 9B has a Y-For, the thin electrode layer 8C, 9C being arranged on the mutually facing inner sides of the two Y-electrode arms 8B, 9B and two electrode arms 8B-8B or 9B-9B are connected to the ground ring 5A via a common web 8A or 9A.
- the prism-shaped attachment body 7 of the center electrode 2 has a triangular outline.
- a ground electrode 8, 9, 10 is assigned to each of the three sides of the attachment body 7. These each consist of a base made of base metal or semi-precious metal connected to the ground ring 5A, each base consisting of a web 8A, 9A, 10A projecting from the ground ring 5A and an arm 8B, 9B, 10B.
- the arms are parallel to the three sides of the attachment part 7 and, facing the attachment part 7, each carry a thin layer 8C, 9C, 10C made of platinum or a platinum alloy.
Landscapes
- Spark Plugs (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT1402/90 | 1990-07-02 | ||
AT140290A AT395788B (de) | 1989-02-21 | 1990-07-02 | Zuendkerze |
PCT/AT1991/000075 WO1992000620A1 (de) | 1990-07-02 | 1991-06-28 | Zündkerze |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0537231A1 true EP0537231A1 (de) | 1993-04-21 |
EP0537231B1 EP0537231B1 (de) | 1995-09-06 |
Family
ID=3513118
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91912246A Expired - Lifetime EP0537231B1 (de) | 1990-07-02 | 1991-06-28 | Zündkerze |
Country Status (6)
Country | Link |
---|---|
US (1) | US5369328A (de) |
EP (1) | EP0537231B1 (de) |
AT (1) | ATE127630T1 (de) |
AU (1) | AU8059191A (de) |
DE (1) | DE59106432D1 (de) |
WO (1) | WO1992000620A1 (de) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5675209A (en) * | 1995-06-19 | 1997-10-07 | Hoskins Manufacturing Company | Electrode material for a spark plug |
US5623179A (en) * | 1995-12-04 | 1997-04-22 | Buhl; Richard | Multi fire spark plug |
US5936332A (en) * | 1997-07-21 | 1999-08-10 | Century Development International Ltd. | Spark plug |
US6060822A (en) * | 1997-07-21 | 2000-05-09 | Century Development International Ltd. | Spark plug |
US6495948B1 (en) | 1998-03-02 | 2002-12-17 | Pyrotek Enterprises, Inc. | Spark plug |
JP4433634B2 (ja) * | 2000-06-29 | 2010-03-17 | 株式会社デンソー | コージェネレーション用スパークプラグ |
US6628049B2 (en) | 2001-02-02 | 2003-09-30 | Pyrostars, Llc | Spark plug with simultaneously multi-firing cap |
US6608430B1 (en) * | 2001-12-07 | 2003-08-19 | Robert J. Schaus | Spark plug with multi-point firing cap |
FI115009B (fi) * | 2003-03-18 | 2005-02-15 | Waertsilae Finland Oy | Menetelmä polttomoottorin sytytystulpan valmistamiseksi |
JP2006228522A (ja) * | 2005-02-16 | 2006-08-31 | Denso Corp | 内燃機関用のスパークプラグ |
US7521849B2 (en) * | 2005-09-29 | 2009-04-21 | Federal-Mogul World Wide, Inc. | Spark plug with welded sleeve on electrode |
WO2007121757A1 (en) * | 2006-04-20 | 2007-11-01 | Hosny Ibrahim Sabry | Spark plug |
US8461750B2 (en) * | 2009-09-11 | 2013-06-11 | Woodward, Inc. | Pre-chamber spark plug and electrodes therefor |
US8584648B2 (en) | 2010-11-23 | 2013-11-19 | Woodward, Inc. | Controlled spark ignited flame kernel flow |
US9172217B2 (en) | 2010-11-23 | 2015-10-27 | Woodward, Inc. | Pre-chamber spark plug with tubular electrode and method of manufacturing same |
US9476347B2 (en) | 2010-11-23 | 2016-10-25 | Woodward, Inc. | Controlled spark ignited flame kernel flow in fuel-fed prechambers |
DE102012202335A1 (de) * | 2012-02-16 | 2013-08-22 | Robert Bosch Gmbh | Zündkerze, insbesondere Wirbelkammerzündkerze |
US9856848B2 (en) | 2013-01-08 | 2018-01-02 | Woodward, Inc. | Quiescent chamber hot gas igniter |
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 |
EP3271561B1 (de) | 2015-03-20 | 2018-12-12 | Woodward, Inc. | Paralleles vorkammerzündungssystem |
US9653886B2 (en) | 2015-03-20 | 2017-05-16 | Woodward, Inc. | Cap shielded ignition system |
US9890689B2 (en) | 2015-10-29 | 2018-02-13 | Woodward, Inc. | Gaseous fuel combustion |
DE112019003643T5 (de) * | 2018-09-26 | 2021-04-08 | Cummins Inc. | Zündkerzenkonfigurationen für eine vorbrennkammer einer brennkraftmaschine |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3548239A (en) * | 1968-09-03 | 1970-12-15 | Champion Spark Plug Co | Spark plug electrode construction |
DE3132814C2 (de) * | 1980-08-21 | 1984-10-25 | Nippondenso Co., Ltd., Kariya, Aichi | Zündkerze für Brennkraftmaschinen |
US4699600A (en) * | 1981-04-30 | 1987-10-13 | Nippondenso Co., Ltd. | Spark plug and method of manufacturing the same |
JPS5859581A (ja) * | 1981-10-01 | 1983-04-08 | 株式会社デンソー | 点火プラグ |
US4814665A (en) * | 1986-09-12 | 1989-03-21 | Ngk Spark Plug Co. Ltd. | Center electrode structure for spark plug |
US4826462A (en) * | 1988-08-19 | 1989-05-02 | Champion Spark Plug Company | Method for manufacturing a spark plug electrode |
DE8902032U1 (de) * | 1989-02-21 | 1989-05-18 | Jenbacher Werke AG, Jenbach, Tirol | 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 |
-
1991
- 1991-06-28 AU AU80591/91A patent/AU8059191A/en not_active Abandoned
- 1991-06-28 EP EP91912246A patent/EP0537231B1/de not_active Expired - Lifetime
- 1991-06-28 US US07/962,578 patent/US5369328A/en not_active Expired - Lifetime
- 1991-06-28 WO PCT/AT1991/000075 patent/WO1992000620A1/de active IP Right Grant
- 1991-06-28 DE DE59106432T patent/DE59106432D1/de not_active Expired - Fee Related
- 1991-06-28 AT AT91912246T patent/ATE127630T1/de not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9200620A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0537231B1 (de) | 1995-09-06 |
ATE127630T1 (de) | 1995-09-15 |
DE59106432D1 (de) | 1995-10-12 |
US5369328A (en) | 1994-11-29 |
WO1992000620A1 (de) | 1992-01-09 |
AU8059191A (en) | 1992-01-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0537231A1 (de) | Zündkerze. | |
DE10133229B4 (de) | Zündkerze mit Ir-Legierungsplättchen | |
AT410151B (de) | Zündkerze einer brennkraftmaschine | |
DE10131391B4 (de) | Zündkerze für Kogenerationssystem | |
EP0675272B1 (de) | Vorkammerzündeinrichtung | |
DE60101755T2 (de) | Zündkerze für Verbrennungsmotor | |
DE10137523B4 (de) | Zündkerze | |
DE69400185T2 (de) | Zündkerzenelektrode zur Anwendung in einem Verbrennungsmotor | |
AT394792B (de) | Zuendkerze | |
DE10205075A1 (de) | Zündkerze und Verfahren zu ihrer Herstellung | |
DE69314738T2 (de) | Zündkerze und sein Herstellungsverfahren | |
DE60222485T2 (de) | Zündkerze | |
DE60126290T2 (de) | Zündeinrichtung mit einer zündspitze, die aus einer yttriumstabilisierten platin/wolfram-legierung gebildet wird | |
EP0329721A1 (de) | Verfahren zum herstellen einer zündkerze für brennkraftmaschinen | |
DE2556137C3 (de) | Zusammengefügtes Bauelement | |
DE69500293T2 (de) | Zündkerze für Verbrennungsmotor | |
DE69608328T2 (de) | Multipolarzündkerze zur Anwendung in einem Verbrennungsmotor | |
AT395788B (de) | Zuendkerze | |
DE112013001321B4 (de) | Masseelektrode, Zündkerze und Verfahren zur Bildung einer Masseelektrode | |
DE2256823C3 (de) | Zündkerze | |
DE3132814A1 (de) | "zuendkerze fuer brennkraftmaschinen" | |
DE112020007183T5 (de) | Zündkerze | |
DE4128392C2 (de) | Zündkerze | |
DE102006036440B4 (de) | Verfahren zum Aufbringen eines Stiftes auf einen Elektrodengrundkörper, Verfahren zur Herstellung einer Zündkerze sowie eine Zündkerze | |
DE60224690T2 (de) | Zündkerze |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
ITCL | It: translation for ep claims filed |
Representative=s name: ING. ANTON AUSSERER |
|
17P | Request for examination filed |
Effective date: 19921219 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT DE DK IT NL |
|
17Q | First examination report despatched |
Effective date: 19950208 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT DE DK IT NL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT Effective date: 19950906 Ref country code: DK Effective date: 19950906 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19950906 |
|
REF | Corresponds to: |
Ref document number: 127630 Country of ref document: AT Date of ref document: 19950915 Kind code of ref document: T |
|
REF | Corresponds to: |
Ref document number: 59106432 Country of ref document: DE Date of ref document: 19951012 |
|
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20090610 Year of fee payment: 19 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20090821 Year of fee payment: 19 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110101 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100628 |