EP2815472A1 - Bougie d'allumage, notamment bougie d'allumage pour chambre de turbulence - Google Patents

Bougie d'allumage, notamment bougie d'allumage pour chambre de turbulence

Info

Publication number
EP2815472A1
EP2815472A1 EP13700467.7A EP13700467A EP2815472A1 EP 2815472 A1 EP2815472 A1 EP 2815472A1 EP 13700467 A EP13700467 A EP 13700467A EP 2815472 A1 EP2815472 A1 EP 2815472A1
Authority
EP
European Patent Office
Prior art keywords
spark
spark plug
electrode
ground electrode
center electrode
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
Application number
EP13700467.7A
Other languages
German (de)
English (en)
Other versions
EP2815472B1 (fr
Inventor
Hermann Kersting
Jorge Diaz Alfonso
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2815472A1 publication Critical patent/EP2815472A1/fr
Application granted granted Critical
Publication of EP2815472B1 publication Critical patent/EP2815472B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H01T13/24—Sparking plugs characterised by features of the electrodes or insulation having movable electrodes
    • H01T13/26—Sparking plugs characterised by features of the electrodes or insulation having movable electrodes for adjusting spark gap otherwise than by bending of electrode
    • 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
    • H01T13/12—Means on sparking plugs for facilitating engagement by tool or by hand
    • 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
    • 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
    • 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
    • H01T13/54—Sparking plugs having electrodes arranged in a partly-enclosed ignition chamber
    • 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
    • H01T21/06—Adjustment of spark gaps

Definitions

  • the present invention relates to a spark plug, in particular a
  • Wirbelschündkerze Preferably, the Wirbelschündkerze for stationary gas engines is used.
  • FIG. 1 shows a swirl chamber spark plug 30 in a section perpendicular to the longitudinal axis. You can see a center electrode 3 and a
  • Ground electrode 4 Four spark surfaces 31 are formed on the center electrode 3 and the ground electrode 4, respectively.
  • the sparking surfaces 31 are located on precious metal platelets. In the previously known Wirbelschfflezündkerze 30, the distance between the spark surfaces 31 is not adjustable or readjustable.
  • the spark plug according to the invention with the features of claim 1 now makes it possible to adjust the gap between the spark surfaces and readjust, whereby the precious metal platelets used can be made smaller. This allows the production cost of
  • Spark plug can be reduced and at the same time increases the service life or
  • a spark plug comprising a center electrode extending along a longitudinal axis of the spark plug having at least a first spark surface, and a ground electrode having at least a second spark surface.
  • the first spark surface is arranged opposite to the second spark surface, so that a spark can be generated between the two spark surfaces.
  • the center electrode is opposite to the
  • Ground electrode rotatable coaxially to the longitudinal axis, and / or the ground electrode is rotatable relative to the center electrode coaxially to the longitudinal axis. Furthermore, the first spark surface and the second spark surface are inclined such that by rotating the center electrode relative to the ground electrode and / or by rotating the ground electrode relative to the center electrode, a distance between the first spark surface and the second spark surface is adjustable, that is changeable.
  • the center electrode is of course opposite to the
  • Ground electrode arranged isolated, so that when a current is applied, the spark between the respective sparking surfaces.
  • a plane is defined to define the slope of the sparks.
  • this plane lies the longitudinal axis of the spark plug and this plane cuts the respective spark surface in the middle.
  • the first spark surface and its opposite second spark surface is inclined at an angle> 0 to this plane.
  • this angle is between 5 ° and 90 °.
  • the angle is between 30 ° and 60 °.
  • the opposing spark surfaces are arranged parallel to each other.
  • the first spark surface is formed on a first noble metal flake of the center electrode
  • the second spark surface is formed on a second noble metal flake of the ground electrode.
  • first spark surface and the second spark surface are flat or rounded surfaces.
  • a plurality of circumferentially distributed first spark surfaces and at the ground electrode a plurality of circumferentially distributed second spark surfaces may be formed on the center electrode.
  • a precious metal leaflet is provided for each spark surface.
  • each mating of first spark surface and second spark surface has the same distance.
  • all the spark surfaces are arranged so that they have the same inclination, so that when adjusting the distance at each pair of spark surfaces always the same distance prevails.
  • Center electrode is rotationally symmetrical with respect to the longitudinal axis of the spark plug. With this end facing away from the combustion chamber, the center electrode is inserted in a panat of the spark plug. In this case, the center electrode is inserted in the panat, so that the center electrode is rotatable relative to the panat.
  • the surface of the combustion chamber facing away from the end of the central electrode is wetted with a lubricant, so that after the baking of the Panates the center electrode against the Panat remains rotatable.
  • This lubricant is designed to be electrically conductive and heat resistant, and does not chemically react with the Panat.
  • a combustion chamber side is preferably provided on the center electrode
  • this tool engagement is designed as a hexagon socket, slot or Phillips.
  • Tool engagement can be used to adjust the distance between the
  • Sparks are intervened with a tool.
  • the center electrode is then rotated relative to the ground electrode coaxially with the longitudinal axis of the spark plug.
  • this tool engagement is formed on a combustion chamber-side front end of the center electrode.
  • the invention further includes a swirl chamber spark plug.
  • This vortex chamber spark plug is constructed as the spark plug described above and additionally has a cap arranged on the combustion chamber side. This combustion chamber side arranged cap is in particular with a housing of the
  • a vortex chamber is formed inside the cap.
  • the cap thus at least partially covers the combustion chamber-side end of the center electrode and the ground electrode.
  • the ground electrode is rotatably connected to the cap and the cap for adjusting the distance between the first spark surface and the second spark surface with respect to the center electrode is rotatable coaxially to the longitudinal axis.
  • the ground electrode is also electrically conductively connected to the cap.
  • the cap in turn is electrically connected to the housing of the Wirbelhuntzündkerze.
  • the cap is preferably rotatably connected to the housing of the Wirbelhuntzündkerze.
  • Tool opening provided in the cap. In this tool opening, a tool for rotating the center electrode can be pushed through.
  • this tool opening is located at a combustion chamber end of the cap.
  • the longitudinal axis of the cap is located at a combustion chamber end of the cap.
  • Figure 2 is a section perpendicular to the longitudinal axis of a
  • FIG. 3 shows a detail view from FIG. 2,
  • Figure 4 shows a section parallel to the longitudinal axis of the invention
  • Figure 5 shows a section parallel to the longitudinal axis of the invention
  • FIG. 6 shows different embodiments of the electrodes for the
  • a spark plug 1 designed as a swirl chamber spark plug, for both embodiments will be explained in detail with reference to Figures 2 and 3.
  • Figure 4 shows the specific embodiment of the spark plug 1 according to the first embodiment.
  • Figure 5 shows the specific embodiment of the spark plug 1 according to the second embodiment. Details of both embodiments will be explained with reference to FIG. Identical or functionally identical components are provided with the same reference numerals in all embodiments.
  • FIG. 2 shows the spark plug 1. Shown is a section through a longitudinal axis 2 of the spark plug. 1
  • the spark plug 1 includes a center electrode 3 and a ground electrode 4. At the center electrode 3, four first stainless steel blades 5 are formed. At each of the stainless steel leaflets 5 is a first
  • the ground electrode 4 comprises four second stainless steel leaflets 7. At each of the second stainless steel leaflets 7, a second spark surface 8 is formed. This creates four pairs of sparking surfaces. There is in each case a first spark surface 6 of a second spark surface 8 opposite. The first and second spark surfaces 6, 8 are each formed flat.
  • FIG. 3 shows a detailed detail from FIG. 2. In FIG. 3, a distance 18 is shown. Due to the planar design of the first and second
  • FIG. 3 shows an imaginary plane 9. In this plane 9 lies the longitudinal axis 2. Furthermore, the plane 9 intersects the respective first or second spark surface 6, 8 in the center. in the example shown here, the plane is 9 for the illustrated second
  • the distance 18 between the first spark surface 6 and second spark surface 8 changes.
  • the distance 18 are readjusted. Due to the inclination of the spark surfaces 6, 8 with the angle ⁇ and due to the plan and parallel design of the spark surfaces 6, 8 move the Spark surfaces 6, 8 approximately parallel to each other when setting the
  • FIG 4 shows the structure of the spark plug 1, designed as
  • Component of the spark plug 1 here is a housing 10, an insulator 1 1, a Panat 12 and a cap 19 are shown.
  • the spark plug 1 for example, in a stationary gas engine, screwed.
  • the housing 10 establishes the ground contact to the gas engine.
  • the center electrode 3 engages electrically conductive in the Panat 12 a.
  • the Panat 12 and the center electrode 3 are insulated from the housing 10 by means of the insulator 11.
  • FIG. 4 further shows a combustion chamber side 14 and a side 15 of the spark plug facing away from the combustion chamber. Accordingly, an end 13 remote from the combustion chamber is defined on the center electrode 3.
  • This end 13 of the central electrode 3 remote from the combustion chamber is rotationally symmetrical with respect to the longitudinal axis 2 and is rotatable relative to the Panat 12.
  • a lubricant between the combustion chamber facing away from the end 13 and the Panat 12 is used.
  • the end facing away from the combustion chamber 13 has a
  • the cap 19 is fixedly connected to the housing 10 on the combustion chamber side. As a result, the cap 19 forms a vortex chamber 20. In this vortex chamber 20 are the ground electrode 4 and a brennraum disorderer proportion of the center electrode 3. Furthermore, the cap 19 has a tool opening 21.
  • Tool opening 21 is formed coaxially with the longitudinal axis 2.
  • Center electrode 3 has at its combustion-chamber-side front end
  • FIG. 4 shows the spark plug 1, designed as a swirl chamber spark plug, according to the second exemplary embodiment.
  • the cap 19 opposite the
  • Housing 10 rotatably arranged.
  • a ring 24 is provided for a tight seal between the cap 19 and the housing 10.
  • the ground electrode 4 rotatably and electrically connected to the cap 19.
  • the cap 19 coaxially about the longitudinal axis 2
  • the ground electrode 4 can be rotated.
  • the ground electrode 4 it is also possible in the second embodiment, the
  • Center electrode 3 for example, as in the first embodiment to arrange rotatably.
  • the rotatable center electrode 3 and / or the rotatable ground electrode 4 are arranged with a self-locking rotary joint, so that a set distance 18, e.g. with vibrations, does not change independently.
  • Figure 6 shows various embodiments of the angle ⁇ for the two embodiments.
  • the left-hand illustration in FIG. 6 shows the angle ⁇ with 0 °, as occurs in the prior art.
  • the angle ⁇ with 0 °, as occurs in the prior art.
  • the middle and the right-hand illustration show how the angle ⁇ can be formed according to the invention, for example, the angle ⁇ is approximately 45 ° and can be up to 90 °.

Landscapes

  • Spark Plugs (AREA)

Abstract

La présente invention concerne une bougie d'allumage (1) comprenant une électrode centrale (3) qui s'étend le long d'un axe longitudinal (2) de la bougie d'allumage (1) et qui présente au moins une première surface d'étincelage (6), et une électrode de masse (4) présentant au moins une deuxième surface d'étincelage (8), la première surface d'étincelage (6) étant disposée en face de la deuxième surface d'étincelage (8) de manière à pouvoir générer une étincelle d'allumage entre la première surface d'étincelage (6) et la deuxième surface d'étincelage (8). L'électrode centrale (3) peut tourner par rapport à l'électrode de masse (4) coaxialement à l'axe longitudinal (2) et/ou l'électrode de masse (4) peut tourner par rapport à l'électrode centrale (3) coaxialementt à l'axe longitudinal (2), et la première surface d'étincelage (6) ainsi que la deuxième surface d'étincelage (7) sont inclinées de telle sorte qu'un écart (18) entre la première surface d'étincelage (6) et la deuxième surface d'étincelage (8) peut être réglé en faisant tourner l'électrode centrale (3) par rapport à l'électrode de masse (4) et/ou l'électrode de masse (4) par rapport à l'électrode centrale (3).
EP13700467.7A 2012-02-16 2013-01-02 Bougie pour chambre de turbulence Active EP2815472B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012202335A DE102012202335A1 (de) 2012-02-16 2012-02-16 Zündkerze, insbesondere Wirbelkammerzündkerze
PCT/EP2013/050016 WO2013120632A1 (fr) 2012-02-16 2013-01-02 Bougie d'allumage, notamment bougie d'allumage pour chambre de turbulence

Publications (2)

Publication Number Publication Date
EP2815472A1 true EP2815472A1 (fr) 2014-12-24
EP2815472B1 EP2815472B1 (fr) 2019-03-27

Family

ID=47563414

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13700467.7A Active EP2815472B1 (fr) 2012-02-16 2013-01-02 Bougie pour chambre de turbulence

Country Status (7)

Country Link
US (1) US9166378B2 (fr)
EP (1) EP2815472B1 (fr)
CN (1) CN104106186B (fr)
AU (1) AU2013220663B2 (fr)
BR (1) BR112014019843B1 (fr)
DE (1) DE102012202335A1 (fr)
WO (1) WO2013120632A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022053203A1 (fr) * 2020-09-10 2022-03-17 Robert Bosch Gmbh Bougie d'allumage de préchambre économique

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014111897B4 (de) * 2013-10-31 2020-06-25 Borgwarner Ludwigsburg Gmbh Zündeinrichtung zum Zünden von Brennstoff-Luft-Gemischen in einer Brennkammer eines Verbrennungsmotors durch eine Korona-Entladung
NL2011947C2 (en) * 2013-12-12 2015-06-15 Twostroke Motorcycle Company Combustion engine comprising a cylinder.
DE102014117714B4 (de) 2014-12-02 2016-06-09 Federal-Mogul Ignition Gmbh Zündkerze für eine mit Gas betriebene Brennkraftmaschine
DE102015204814B9 (de) * 2015-03-17 2016-07-14 Dkt Verwaltungs-Gmbh Vorkammerzündkerze zur Zündung eines Kraftstoff-Luft-Gemisches in einem Verbrennungsmotor
EP3173596B1 (fr) * 2015-11-25 2020-04-01 Caterpillar Energy Solutions GmbH Ensemble chambre de précombustion pour moteurs à combustion interne
US9859688B1 (en) * 2016-07-15 2018-01-02 Caterpillar Inc. Remanufactured sparkplug and sparkplug remanufacturing method
CN106936071B (zh) * 2017-03-15 2018-05-18 中国民用航空飞行学院 一种火花塞及延长水平对置发动机火花塞寿命的使用方法
WO2020068967A1 (fr) * 2018-09-26 2020-04-02 Cummins Inc. Configurations de bougie d'allumage pour une préchambre de combustion d'un moteur à combustion interne
DE102018221917A1 (de) * 2018-12-17 2020-06-18 Robert Bosch Gmbh Vorkammerzündkerze
DE102020211352A1 (de) 2020-09-10 2022-03-10 Robert Bosch Gesellschaft mit beschränkter Haftung Vorkammerzündkerze mit verbesserter Masseelektrode
DE102020211355A1 (de) 2020-09-10 2022-03-10 Robert Bosch Gesellschaft mit beschränkter Haftung Vorkammerzündkerze, insbesondere für mobile Brennkraftmaschinen
US11646551B2 (en) 2021-06-23 2023-05-09 Caterpillar Inc. Spark plug
DE102021214150A1 (de) 2021-12-10 2023-06-15 Robert Bosch Gesellschaft mit beschränkter Haftung Zündkerze mit kleinem Zündspalt und planen Zündelementflächen
US11552456B1 (en) * 2022-01-10 2023-01-10 Federal-Mogul Ignition Llc Pre-chamber spark plug
US11757262B1 (en) 2022-12-28 2023-09-12 Federal-Mogul Ignition Gmbh Prechamber spark plug and method of manufacturing the same
US20240337234A1 (en) * 2023-04-06 2024-10-10 Caterpillar Inc. Sparkplug having cathode and anode compositions for extended service life

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JP4306115B2 (ja) * 2000-11-06 2009-07-29 株式会社デンソー スパークプラグの製造方法
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022053203A1 (fr) * 2020-09-10 2022-03-17 Robert Bosch Gmbh Bougie d'allumage de préchambre économique

Also Published As

Publication number Publication date
CN104106186B (zh) 2016-11-02
DE102012202335A1 (de) 2013-08-22
US9166378B2 (en) 2015-10-20
BR112014019843B1 (pt) 2021-01-26
BR112014019843A2 (fr) 2017-06-20
US20150028737A1 (en) 2015-01-29
AU2013220663B2 (en) 2017-09-07
BR112014019843A8 (pt) 2017-07-11
CN104106186A (zh) 2014-10-15
WO2013120632A1 (fr) 2013-08-22
EP2815472B1 (fr) 2019-03-27
AU2013220663A1 (en) 2014-09-25

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