DE102012011643A1 - Arrangement for spark plug used in combustion engine, has ground electrode that is physically limited by insulator which is arranged relative to housing, and center electrode which is led into ignition cylinder - Google Patents

Arrangement for spark plug used in combustion engine, has ground electrode that is physically limited by insulator which is arranged relative to housing, and center electrode which is led into ignition cylinder Download PDF

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Publication number
DE102012011643A1
DE102012011643A1 DE201210011643 DE102012011643A DE102012011643A1 DE 102012011643 A1 DE102012011643 A1 DE 102012011643A1 DE 201210011643 DE201210011643 DE 201210011643 DE 102012011643 A DE102012011643 A DE 102012011643A DE 102012011643 A1 DE102012011643 A1 DE 102012011643A1
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DE
Germany
Prior art keywords
housing
spark plug
ground electrode
electrode
metal foam
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.)
Withdrawn
Application number
DE201210011643
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German (de)
Inventor
Anmelder Gleich
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE201210011643 priority Critical patent/DE102012011643A1/en
Publication of DE102012011643A1 publication Critical patent/DE102012011643A1/en
Withdrawn legal-status Critical Current

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    • 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
    • H01T13/02—Details
    • H01T13/14—Means for self-cleaning
    • 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

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  • Ignition Installations For Internal Combustion Engines (AREA)
  • Spark Plugs (AREA)

Abstract

The arrangement has a spark plug (1) whose center electrode (2) is led into an ignition cylinder (5) defined by an open-pore metal foam. The ground electrode (6) and combustion chamber side is made of open-pore or closed-pore metal foam and/or sintered metal foam. The ground electrode is positively or non-positively connected to the housing (7). The ground electrode is physically limited by an insulator (3) which is arranged relative to the housing.

Description

Die Erfindung betrifft eine Anordnung für eine Zündkerze nach der im Oberbegriff des Anspruchs 1 angegebenen Art.The invention relates to an arrangement for a spark plug according to the type specified in the preamble of claim 1.

Im Stand der Technik sind viele Zündkerzen für Brennkraftmaschinen in den unterschiedlichsten Technologien und Ausführungsformen beschrieben und auch im Einsatz.In the prior art, many spark plugs for internal combustion engines in a variety of technologies and embodiments are described and also in use.

Dennoch sind Probleme wie Verrußung der Elektroden, mit Kraftstoff benetzte Elektroden und schnelle Erreichung der Selbstreinigungstemperatur bisher nicht optimal gelöst.Nevertheless, problems such as sooting of the electrodes, wetted with fuel electrodes and rapid achievement of the self-cleaning temperature have not been optimally solved.

Erfindungsgemäß werden diese Probleme dadurch reduziert, dass die Mittelelektrode der Zündkerze in einen Zündzylinder mündet, der durch eine offenporige Metallschaum-Masseelektrode begrenzt wird, deren Porengröße so ausgelegt ist, dass die damit in Berührung kommenden Kraftstoffteilchen an der großen heißen Oberfläche der offenporige Metallschaum-Masseelektrode teilweise vergasen und dadurch sicher und schnell entflammbar sind und damit eine gute Kühlung der Masseelektrode erreicht wird. Wegen der großen Oberfläche und schnellen Erreichung der Betriebstemperatur ist auch ein schnelles Freibrennen von Rußbelägen gegeben.According to the invention, these problems are reduced in that the center electrode of the spark plug opens into an ignition cylinder which is delimited by an open-pore metal foam ground electrode whose pore size is designed so that the fuel particles coming into contact with it on the large hot surface of the open-pore metal foam earth electrode partially gasified and thereby safely and quickly are flammable and thus a good cooling of the ground electrode is achieved. Due to the large surface area and rapid achievement of the operating temperature, there is also a rapid burnout of soot deposits.

In folgendem wird die Erfindung anhand eines bevorzugten Ausführungsbeispiels in Verbindung mit einer Zeichnung beschrieben. Dabei zeigt:In the following the invention will be described with reference to a preferred embodiment in conjunction with a drawing. Showing:

1 einen vereinfachten Längsschnitt der Zündkerze (1). 1 a simplified longitudinal section of the spark plug ( 1 ).

Dabei mündet die Mittelelektrode (2) in den Zündraum (5), der durch den Isolator (3) hermetisch dicht begrenzt wird. Die offenporige in einer ersten Ausführungsform ringförmige Metallschaum-Masseelektrode (6) ist kraft- oder formschlüssig mit dem Kerzengehäuse (7) verbunden. Durch diese Anordnung kann der auf die offenporige Metallschaum-Masseelektrode (6) auftreffende Kraftstoff gut verdampfen bzw. vergasen und so leichter entzündet werden. Weiter findet der Zündfunken wegen der großen Massenoberfläche der offenporigen Metallschaum-Masseelektrode (6) immer einen guten Masseübergang.The middle electrode ( 2 ) into the ignition space ( 5 ) passing through the insulator ( 3 ) is hermetically tight. The open-pored, in a first embodiment, annular metal foam ground electrode ( 6 ) is non-positive or positive fit with the plug housing ( 7 ) connected. By this arrangement, the on the open-cell metal foam ground electrode ( 6 ) evaporate fuel well or gasify and so are easily ignited. Furthermore, due to the large mass surface of the open-pored metal foam ground electrode, the spark 6 ) always a good mass transition.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Zündkerzespark plug
22
Mittelelektrodecenter electrode
33
Isolatorinsulator
44
Gewindethread
55
Zündraumignition space
66
offenporige Metallschaum-Masseelektrodeopen-pore metal foam ground electrode
77
Gehäusecasing

Claims (2)

Anordnung für eine Zündkerze, dadurch gekennzeichnet, dass die Mittelelektrode (2) der Zündkerze (1) in den Zündraum (5) mündet, der durch die ringförmige bzw. zylinderförmige oder auch physikalisch unterbrochene offenporige Metallschaum-Masseelektrode (6) und brennraumseitig offene oder ganz oder teilweise geschlossene offenporige oder geschlossenporige Metallschaum bzw. Sintermetallschaum Masseelektrode (6), die mit dem Gehäuse (7) kraft- oder formschlüssig verbundenen ist, umgibt und durch den Isolator (3) gegenüber dem Gehäuse (7) physikalisch begrenzt wird.Arrangement for a spark plug, characterized in that the center electrode ( 2 ) of the spark plug ( 1 ) into the ignition space ( 5 ), which passes through the annular or cylindrical or physically interrupted open-pore metal foam earth electrode ( 6 ) and on the combustion chamber side open or completely or partially closed open-pored or closed-pore metal foam or sintered metal foam ground electrode ( 6 ), which are connected to the housing ( 7 ) is positively or positively connected, surrounds and through the insulator ( 3 ) opposite the housing ( 7 ) is physically limited. Zündkerze nach Anspruch 1, dadurch gekennzeichnet, dass die offenporige Metallschaum-Masseelektrode (6) die Mittelelektrode (2) halbkugelförmig oder scheibenförmig umgibt und mit dem brennraumseitigen Gehäuse (7) kraft- oder formschlüssig verbundenen ist.Spark plug according to claim 1, characterized in that the open-cell metal foam ground electrode ( 6 ) the center electrode ( 2 ) hemispherical or disc-shaped surrounds and with the combustion chamber side housing ( 7 ) is positively or positively connected.
DE201210011643 2012-06-12 2012-06-12 Arrangement for spark plug used in combustion engine, has ground electrode that is physically limited by insulator which is arranged relative to housing, and center electrode which is led into ignition cylinder Withdrawn DE102012011643A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE201210011643 DE102012011643A1 (en) 2012-06-12 2012-06-12 Arrangement for spark plug used in combustion engine, has ground electrode that is physically limited by insulator which is arranged relative to housing, and center electrode which is led into ignition cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201210011643 DE102012011643A1 (en) 2012-06-12 2012-06-12 Arrangement for spark plug used in combustion engine, has ground electrode that is physically limited by insulator which is arranged relative to housing, and center electrode which is led into ignition cylinder

Publications (1)

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DE102012011643A1 true DE102012011643A1 (en) 2013-12-12

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DE201210011643 Withdrawn DE102012011643A1 (en) 2012-06-12 2012-06-12 Arrangement for spark plug used in combustion engine, has ground electrode that is physically limited by insulator which is arranged relative to housing, and center electrode which is led into ignition cylinder

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018105181A1 (en) * 2018-03-07 2019-09-12 SCENTEC GmbH & Co.KG Chamber candle with detachable electrode

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018105181A1 (en) * 2018-03-07 2019-09-12 SCENTEC GmbH & Co.KG Chamber candle with detachable electrode
DE102018105181B4 (en) * 2018-03-07 2021-05-06 SparkX GmbH Chamber candle with detachable electrode

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Legal Events

Date Code Title Description
R086 Non-binding declaration of licensing interest
R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee
R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee

Effective date: 20150101