EP0260576A1 - Igniter for air-compressing internal-combustion engines - Google Patents

Igniter for air-compressing internal-combustion engines Download PDF

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Publication number
EP0260576A1
EP0260576A1 EP87113090A EP87113090A EP0260576A1 EP 0260576 A1 EP0260576 A1 EP 0260576A1 EP 87113090 A EP87113090 A EP 87113090A EP 87113090 A EP87113090 A EP 87113090A EP 0260576 A1 EP0260576 A1 EP 0260576A1
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EP
European Patent Office
Prior art keywords
sleeve
spark plug
pin
ignition
ignition device
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
EP87113090A
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German (de)
French (fr)
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EP0260576B1 (en
Inventor
Gerhard Dipl.-Ing. Finsterwalder
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.)
Kloeckner Humboldt Deutz AG
Original Assignee
Kloeckner Humboldt Deutz AG
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 Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Priority to AT87113090T priority Critical patent/ATE48688T1/en
Publication of EP0260576A1 publication Critical patent/EP0260576A1/en
Application granted granted Critical
Publication of EP0260576B1 publication Critical patent/EP0260576B1/en
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
    • F23Q7/001—Glowing plugs for internal-combustion engines
    • 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

Definitions

  • the invention relates to air-compressing internal combustion engines according to the preamble of claim 1.
  • an air-compressing internal combustion engine in which the fuel is injected via an injection nozzle into the combustion chamber arranged in the piston.
  • an ignition device consisting of a spark plug with a sleeve at least surrounding the electrodes of the spark plug is provided, openings being machined into the outer surface of the sleeve.
  • This design has the disadvantage that, despite the partial shielding formed by the sleeve, the ignition space on the spark plug cools down so much due to the entering fuel that, particularly when the internal combustion engine is operating with fuels that do not ignite, the ignition source must be kept in operation so that one evaporates or igniting the impinging fuel jets sufficient Amount of heat is given off.
  • the continuous supply of electrical energy - reduction in the useful power that can be delivered by the internal combustion engine the continuous operation of the spark plug leads to a correspondingly high electrode erosion, which reduces the service life of the spark plug.
  • the invention is based on the object of providing an ignition device for air-compressing internal combustion engines, by means of which reliable ignition of the fuel, preferably unwilling to be ignited, injected into the combustion chamber of the internal combustion engine is ensured in the entire operating range, the wear of the ignition device and the electrical energy to be supplied to the ignition device being minimized should be.
  • a pin projecting into the sleeve is fastened to an internal bead of the sleeve on the combustion chamber, on which a wire coil is wound, which is supported on the inner bead of the sleeve and on the ground electrodes of the spark plug designed as a high-voltage spark plug. It has surprisingly been found that the electrical operating or ignition power to be supplied to the ignition device can be considerably reduced by the configuration according to the invention. If, for example, the ignition system, which is preferably designed as a high-voltage buzzer, is switched on when the internal combustion engine starts, the spark spark quickly heats up due to the continuous spark.
  • the fuel-air mixture which has penetrated into the ignition chamber is ignited and in turn heats the incandescent filament arranged in the ignition chamber and at least partially pin protruding coaxially into the filament. Due to the interaction according to the invention of the filament and pin heat stores, the high-voltage spark plug only needs to be switched on during start-up, warm-up and after the internal combustion engine has been pushed.
  • a high-voltage spark plug 2 which forms the ignition device, is screwed into a schematically indicated cylinder head 1.
  • the high-voltage spark plug 2 is screwed into the cylinder head 1 so far that the electrodes 3, 4 just protrude into the combustion chamber 5 of the internal combustion engine.
  • the electrodes 4 represent the ground electrodes, while the electrode 3 is the high voltage or ground electrode.
  • a sleeve 6 is also attached, for example by a screw.
  • the sleeve 6 protrudes into the combustion chamber 5 and is provided at its m combustion chamber end with an inner bead 7 to which a pin 8 is fastened coaxially to the sleeve 6.
  • the pin 8 protrudes into the interior of the sleeve 6 and ends at a defined distance in front of the high-voltage electrode 3.
  • the ignition chamber 9 formed by the sleeve 6 and the pin 8 is through bores 10 on the outer circumference of the sleeve 6 in the region close to the cylinder head are attached to the combustion chamber 5 of the internal combustion engine.
  • a filament 11 is wound around the pin 8, which is supported on the inner bead 7 and on the ground electrodes 3 of the high-voltage spark plug 2.
  • the incandescent filament 11 is advantageously made of 0.5 to 1 mm thick resistant wire.
  • the pin 8 is advantageously designed as a hollow pin closed on one side, the closed side representing the end of the pin 8 facing the high-voltage electrode 3.
  • the high-voltage spark plug 2 is advantageously switched on and off by means of a signal transmitter which is coupled to the control rod of the fuel delivery pump and emits a signal to a control device as soon as the control rod is in the state of delivery. Furthermore, the exhaust gas temperature of the internal combustion engine is measured by the control device via a measuring sensor. The two measured parameters are processed in the control device in such a way that when the exhaust gas temperature falls below a predeterminable temperature and the control rod is simultaneously set in the operating range “delivery”, electrical energy is delivered to the high-voltage ignition device.
  • the spark plug only functions for a short time and with relatively cold electrodes 3, 4, so that in addition to lower energy consumption, the electrode erosion of the high-voltage spark plug 2 is minimized and the service life of the high-voltage spark plug 2 is correspondingly long.
  • the high-voltage spark plug 2 is advantageously fed by a high-frequency buzzer ignition, each high-voltage spark plug 2 being provided with an ignition coil integrated in the spark plug connector, which can be connected in parallel on the low-voltage side - corresponding to the number of high-voltage spark plugs 2 used in an internal combustion engine - and spark simultaneously without an ignition distributor.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Spark Plugs (AREA)
  • Compressor (AREA)

Abstract

Es wird eine Zündvorrichtung für luftverdichtende Brennkraftmaschinen vorgestellt, die neben einem geringen Verschleiß einen niedrigen Energieverbrauch aufweisen soll. Dazu ist die Zündvorrichtung als Hochspannungszündkerze (2) ausgebildet, an die sich eine Hüse (6) anschließt, wobei in die Hülse (6) ein Stift (8) koaxial eingesetzt ist und um den Stift (8) ein Glühwendel (11) gewickelt ist.An ignition device for air-compressing internal combustion engines is presented which, in addition to low wear, is said to have low energy consumption. For this purpose, the ignition device is designed as a high-voltage spark plug (2) to which a sleeve (6) is connected, a pin (8) being inserted coaxially into the sleeve (6) and a filament (11) being wound around the pin (8) .

Description

Die Erfindung bezieht sich auf luftverdichtende Brennkraftmaschinen nach dem Oberbegriff des Anspruchs 1.The invention relates to air-compressing internal combustion engines according to the preamble of claim 1.

Aus der DD-PS 39 916 ist eine luftverdichtende Brennkraftmaschine bekannt, bei der der Brennstoff über eine Einspritzdüse in den in dem Kolben angeordneten Brennraum eingespritzt wird. Um das in dem Brennraum befindliche Brennstoff-Luftgemisch zu entzünden ist eine Zündvorrichtung bestehend aus einer Zündkerze mit einer zumindest die Elektroden der Zündkerze umschließenden Hülse vorgesehen, wobei in die Mantelfläche der Hülse Öffnungen eingearbeitet sind. Durch das Anbringen der Hülse soll ein Auskühlen der Zündquelle durch an der Zündquelle vorbeiströmende Verbrennungsluft bzw. durch auftreffende Kraftstoffstrahlen vermindert werden. Diese Ausbildung hat den Nachteil, daß der trotz der teilweisen Abschirmung durch die Hülse gebildete Zündraum an der Zündkerze durch den eintretenden Kraftstoff so stark auskühlt, daß insbesondere beim Betrieb der Brennkraftmaschine mit zündunwilligen Kraftstoffen die Zündquelle laufend in Betrieb gehalten werden muß, damit eine zum Verdampfen bzw. Entzünden der auftreffenden Kraftstoffstrahlen ausreichende Wärmemenge abgegeben wird. Neben dem Nachteil der dauernd zuzuführenden elektrischen Energie - Verminderung der von der Brennkraftmaschine abgebbaren Nutzleistung - tritt durch den dauernden Betrieb der Zündkerze ein entsprechend hoher Elektrodenabbrand auf, der die Lebensdauer der Zündkerze verringert.From DD-PS 39 916 an air-compressing internal combustion engine is known in which the fuel is injected via an injection nozzle into the combustion chamber arranged in the piston. In order to ignite the fuel-air mixture located in the combustion chamber, an ignition device consisting of a spark plug with a sleeve at least surrounding the electrodes of the spark plug is provided, openings being machined into the outer surface of the sleeve. By attaching the sleeve, cooling of the ignition source by combustion air flowing past the ignition source or by impinging fuel jets is to be reduced. This design has the disadvantage that, despite the partial shielding formed by the sleeve, the ignition space on the spark plug cools down so much due to the entering fuel that, particularly when the internal combustion engine is operating with fuels that do not ignite, the ignition source must be kept in operation so that one evaporates or igniting the impinging fuel jets sufficient Amount of heat is given off. In addition to the disadvantage of the continuous supply of electrical energy - reduction in the useful power that can be delivered by the internal combustion engine - the continuous operation of the spark plug leads to a correspondingly high electrode erosion, which reduces the service life of the spark plug.

Der Erfindung liegt die Aufgabe zugrunde, eine Zündvorrichtung für luftverdichtende Brennkraftmaschinen bereitzustellen, durch die eine zuverlässige Entzündung des in den Brennraum der Brennkraftmaschine eingespritzten, vorzugsweise zündunwilligen, Brennstoffes im gesamten Betriebsbereich sichergestellt ist, wobei der Verschleiß der Zündvorrichtung und die der Zündvorrichtung zuzuführende elektrische Energie minimiert werden sollen.The invention is based on the object of providing an ignition device for air-compressing internal combustion engines, by means of which reliable ignition of the fuel, preferably unwilling to be ignited, injected into the combustion chamber of the internal combustion engine is ensured in the entire operating range, the wear of the ignition device and the electrical energy to be supplied to the ignition device being minimized should be.

Diese Aufgabe wird dadurch gelöst, daß an einen brennraumseitigen Innenwulst der Hülse ein in die Hülse hineinragender Stift befestigt ist, auf dem ein Drahtwendel gewickelt ist, der sich an dem Innenwulst der Hülse und an den Masseelektroden der als Hochspannungszündkerze ausgebildeten Zündkerze abstützt. Es hat sich überraschender Weise gezeigt, daß durch die erfindungsgemäße Ausgestaltung die der Zündvorrichtung zuzuführende elektrische Betriebs- bzw. Zündleistung erheblich reduziert werden kann. Wird beispielsweise beim Start der Brennkraftmaschine die vorzugsweise als Hochspannungssummerzündung ausgebildete Zündanlage eingeschaltet, erwärmen sich durch das Dauerfunken die Kerzenelektroden rasch. Dadurch wird das in die Zündkammer eingedrungene Brennstoff- Luftgemisch entzündet und erwärmt seinerseits den in der Zündkammer angeordneten Glühwendel und den zumindest teilweise koaxial in den Glühwendel hineinragenden Stift. Durch das erfingungsgemäße Zusammenwirken von den Wärmespeichern Glühwendel und Stift braucht die Hochspannungszündkerze nur während des Starts, des Warmlaufs und nach einem Schiebbetrieb der Brennkraftmaschine eingeschaltet werden.This object is achieved in that a pin projecting into the sleeve is fastened to an internal bead of the sleeve on the combustion chamber, on which a wire coil is wound, which is supported on the inner bead of the sleeve and on the ground electrodes of the spark plug designed as a high-voltage spark plug. It has surprisingly been found that the electrical operating or ignition power to be supplied to the ignition device can be considerably reduced by the configuration according to the invention. If, for example, the ignition system, which is preferably designed as a high-voltage buzzer, is switched on when the internal combustion engine starts, the spark spark quickly heats up due to the continuous spark. As a result, the fuel-air mixture which has penetrated into the ignition chamber is ignited and in turn heats the incandescent filament arranged in the ignition chamber and at least partially pin protruding coaxially into the filament. Due to the interaction according to the invention of the filament and pin heat stores, the high-voltage spark plug only needs to be switched on during start-up, warm-up and after the internal combustion engine has been pushed.

Weitere erfindungsgemäße Ausgestaltungen ergeben sich aus der Zeichnungsbeschreibung, in der ein in der Zeichnung dargestelltes Ausführungsbeispiel der Erfindung beschrieben ist. In einem schematisch angedeuteten Zylinderkopf 1 ist eine die Zündvorrichtung bildende Hochspannungszündkerze 2 eingeschraubt. Dabei ist die Hochspannungszündkerze 2 soweit in den Zylinderkopf 1 hineingeschraubt, daß die Elektroden 3,4 gerade in den Brennraum 5 der Brennkraftmaschine hineinragen. Die Elektroden 4 stellen die Masseelektroden dar, während die Elektrode 3 die Hochspannungs- bzw. Maseelektrode ist. An der Hochspannungszündkerze 2 ist weiterhin eine Hülse 6 beispielsweise durch eine Verschraubung befestigt. Die Hülse 6 ragt in den Brennraum 5 hinein und ist an ihre m brennraumseitigen Ende mit einem Innenwulst 7 versehen, an dem koaxial zu der Hülse 6 ein Stift 8 befestigt ist. Der Stift 8 ragt in das Innere der Hülse 6 hinein und endet in einem definierten Abstand vor der Hochspannungselektrode 3. Die von der Hülse 6 und dem Stift 8 gebildete Zündkammer 9 ist über Bohrungen 10, die auf dem Außenumfang der Hülse 6 in dessen zylinderkopfnahen Bereich angebracht sind, mit dem Brennraum 5 der Brennkraftmaschine verbunden. Weiterhin ist um den Stift 8 ein Glühwendel 11 gewickelt, der sich auf dem Innenwulst 7 und auf den Masselektroden 3 der Hochspannungszündkerze 2 abstützt. Weiterhin ist der Glühwendel 11 vorteilhaft aus 0,5 bis 1 mm dickem verzunde rungsbeständigem Draht gewickelt. Der Stift 8 ist vorteilhaft als einseitig geschlossener Hohlstift ausgebildet, wobei die geschlossene Seite das zu der Hochspannungselektrode 3 weisende Ende des Stiftes 8 darstellt.Further refinements according to the invention result from the description of the drawing, in which an exemplary embodiment of the invention shown in the drawing is described. A high-voltage spark plug 2, which forms the ignition device, is screwed into a schematically indicated cylinder head 1. The high-voltage spark plug 2 is screwed into the cylinder head 1 so far that the electrodes 3, 4 just protrude into the combustion chamber 5 of the internal combustion engine. The electrodes 4 represent the ground electrodes, while the electrode 3 is the high voltage or ground electrode. On the high-voltage spark plug 2, a sleeve 6 is also attached, for example by a screw. The sleeve 6 protrudes into the combustion chamber 5 and is provided at its m combustion chamber end with an inner bead 7 to which a pin 8 is fastened coaxially to the sleeve 6. The pin 8 protrudes into the interior of the sleeve 6 and ends at a defined distance in front of the high-voltage electrode 3. The ignition chamber 9 formed by the sleeve 6 and the pin 8 is through bores 10 on the outer circumference of the sleeve 6 in the region close to the cylinder head are attached to the combustion chamber 5 of the internal combustion engine. Furthermore, a filament 11 is wound around the pin 8, which is supported on the inner bead 7 and on the ground electrodes 3 of the high-voltage spark plug 2. Furthermore, the incandescent filament 11 is advantageously made of 0.5 to 1 mm thick resistant wire. The pin 8 is advantageously designed as a hollow pin closed on one side, the closed side representing the end of the pin 8 facing the high-voltage electrode 3.

Ein- bzw. ausgeschaltet wird die Hochspannungszündkerze 2 vorteilhaft mittels eines Signalgebers, der mit der Regelstange der Brennstoffförderpumpe gekoppelt ist und ein Signal an eine Steuereinrichtung abgibt, sobald die Regelstange auf Förderung steht. Desweiteren wird von der Regeleinrichtung über einen Meßsensor die Abgastemperatur der Brennkraftmaschine gemessen. Die beiden gemessenen Parameter werden in der Steuereinrichtung so verarbeitet, daß bei Unterschreiten einer vorgebbaren Abgastemperatur und gleichzeitiger Stellung der Regelstange im Betriebsbereich "Förderung" elektrische Energie an die Hochspannungszündvorrichtung abgegeben wird.The high-voltage spark plug 2 is advantageously switched on and off by means of a signal transmitter which is coupled to the control rod of the fuel delivery pump and emits a signal to a control device as soon as the control rod is in the state of delivery. Furthermore, the exhaust gas temperature of the internal combustion engine is measured by the control device via a measuring sensor. The two measured parameters are processed in the control device in such a way that when the exhaust gas temperature falls below a predeterminable temperature and the control rod is simultaneously set in the operating range “delivery”, electrical energy is delivered to the high-voltage ignition device.

Durch diese erfingungsgemäße Ausgestaltung ist die Zündkerze nur kurzzeitig und bei relativ kalten Elektroden 3, 4 in Funktion, so daß neben eines geringeren Energieverbrauchs der Elektrodenabbrand der Hochspannungszündkerze 2 minimiert ist und entsprechend die Lebensdauer der Hochspannungszündkerze 2 hoch ist. Die Hochspannungszündkerze 2 wird vorteilhaft von einer hochfrequenten Summerzündung gespeist, wobei jede Hochspannungszündkerze 2 mit einer im Kerzenstecker integrierten Zündspule versehen ist, die niederspannungsseitig parallel geschaltet sein können -entsprechend der Zahl der in einer Brennkraftmaschine eingesetzten Hochspannungszündkerzen 2 - und ohne Zündverteiler gleichzeitig funken. By means of this embodiment according to the invention, the spark plug only functions for a short time and with relatively cold electrodes 3, 4, so that in addition to lower energy consumption, the electrode erosion of the high-voltage spark plug 2 is minimized and the service life of the high-voltage spark plug 2 is correspondingly long. The high-voltage spark plug 2 is advantageously fed by a high-frequency buzzer ignition, each high-voltage spark plug 2 being provided with an ignition coil integrated in the spark plug connector, which can be connected in parallel on the low-voltage side - corresponding to the number of high-voltage spark plugs 2 used in an internal combustion engine - and spark simultaneously without an ignition distributor.

Claims (3)

1. Zündvorrichtung für eine luftverdichtende Brennkraftmaschine, wobei die Zündvorrichtung als Zündquelle eine Zündkerze aufweist, die zumindest in ihrem in den Brennraum ragenden Bereich von einer Hülse (6) umschlossen ist, wobei die Hülse zumindest eine Bohrung (10) aufweist, dadurch gekennzeichnet, daß an einem brennraumseitigen Innenwulst (7) der Hülse (6) ein in die Hülse (6) hineinragender Stift (8) befestigt ist, auf den ein Glühwendel (11) gewickelt ist, der sich an dem Innenwulst (7) und an den Masseelektroden (4) der als Hochspannungszündkerze (2) ausgebildeten Zündkerze abstützt.1. Ignition device for an air-compressing internal combustion engine, the ignition device having an ignition plug as the ignition source, which is enclosed at least in its area projecting into the combustion chamber by a sleeve (6), the sleeve having at least one bore (10), characterized in that On an internal bead (7) of the sleeve (6) on the combustion chamber side, a pin (8) projecting into the sleeve (6) is fastened, on which a filament (11) is wound, which is attached to the inner bead (7) and to the ground electrodes ( 4) supports the spark plug designed as a high-voltage spark plug (2). 2. Zündvorrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß der Stift (8) einen zum Brennraum offenen Hohlraum aufweist.2. Ignition device according to claim 1,
characterized in that the pin (8) has a cavity open to the combustion chamber. 3. Zündvorrichtung nach Anspruch 2,
dadurch gekennzeichnet, daß der Hohlraum sich über die ganze Länge des Stiftes (8) erstreckt.3. Ignition device according to claim 2,
characterized in that the cavity extends over the entire length of the pin (8).
EP87113090A 1986-09-16 1987-09-08 Igniter for air-compressing internal-combustion engines Expired EP0260576B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87113090T ATE48688T1 (en) 1986-09-16 1987-09-08 IGNITION DEVICE FOR AIR COMPRESSING INTERNAL ENGINES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863631444 DE3631444A1 (en) 1986-09-16 1986-09-16 IGNITION DEVICE FOR AIR COMPRESSING INTERNAL COMBUSTION ENGINES
DE3631444 1986-09-16

Publications (2)

Publication Number Publication Date
EP0260576A1 true EP0260576A1 (en) 1988-03-23
EP0260576B1 EP0260576B1 (en) 1989-12-13

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ID=6309664

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87113090A Expired EP0260576B1 (en) 1986-09-16 1987-09-08 Igniter for air-compressing internal-combustion engines

Country Status (6)

Country Link
US (1) US4766861A (en)
EP (1) EP0260576B1 (en)
JP (1) JPS63121284A (en)
AT (1) ATE48688T1 (en)
BR (1) BR8704769A (en)
DE (2) DE3631444A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT400483B (en) * 1993-09-16 1996-01-25 Vaillant Gmbh BUSHING FOR AN ELECTRODE, ESPECIALLY THROUGH THE WALL OF A COMBUSTION CHAMBER

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Publication number Priority date Publication date Assignee Title
US4903656A (en) * 1988-12-29 1990-02-27 Yanmar Deisel Engine Co., Ltd. Gas engine
DE19637993C1 (en) * 1996-09-18 1998-02-26 Daimler Benz Ag Direct injection internal combustion engine
DE10007211C2 (en) * 2000-02-17 2003-03-20 Hilti Ag Internal combustion-powered working device, in particular setting device for fastening elements
US8104444B2 (en) * 2007-10-31 2012-01-31 Caterpillar Inc. Pre-chamber igniter having RF-aided spark initiation
DE102014117714B4 (en) * 2014-12-02 2016-06-09 Federal-Mogul Ignition Gmbh Spark plug for a gas-powered internal combustion engine

Citations (5)

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Publication number Priority date Publication date Assignee Title
FR1074180A (en) * 1953-02-12 1954-10-04 Isolants Et Bougies Pognon Soc Improvement in ignition of internal combustion engines
FR61972E (en) * 1951-08-28 1955-06-01 Isolants Et Bougies Pognon Soc Ignition device for light vehicle engines
DE1240335B (en) * 1965-07-31 1967-05-11 Bosch Gmbh Robert Ignition device with a Rohrgluehkoerper
US4061122A (en) * 1976-01-08 1977-12-06 Edgar Robert G Spark plug
FR2498384A1 (en) * 1981-01-21 1982-07-23 Stein George IC engine ignition spark plug - uses refractory metal wire loop spanning earth electrode to absorb heat from combustion and assist plug gap ionisation

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Publication number Priority date Publication date Assignee Title
US1223124A (en) * 1916-05-12 1917-04-17 Arthur W Thompson Vaporizer and igniter for internal-combustion engines.
US2456080A (en) * 1944-11-20 1948-12-14 Pe Wu Ignition plug
US4182281A (en) * 1977-07-18 1980-01-08 Heintzelman Leo A Spark plug adapter and process
DE2831442A1 (en) * 1978-07-18 1980-01-31 Bosch Gmbh Robert INTERNAL COMBUSTION ENGINE WITH A MAIN COMBUSTION CHAMBER AND ITS COMPLETED IGNITION CHAMBER WITH IGNITION DEVICE
DE3145339A1 (en) * 1981-11-14 1983-05-26 Robert Bosch Gmbh, 7000 Stuttgart Spark plug with ignition chamber

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR61972E (en) * 1951-08-28 1955-06-01 Isolants Et Bougies Pognon Soc Ignition device for light vehicle engines
FR1074180A (en) * 1953-02-12 1954-10-04 Isolants Et Bougies Pognon Soc Improvement in ignition of internal combustion engines
DE1240335B (en) * 1965-07-31 1967-05-11 Bosch Gmbh Robert Ignition device with a Rohrgluehkoerper
US4061122A (en) * 1976-01-08 1977-12-06 Edgar Robert G Spark plug
FR2498384A1 (en) * 1981-01-21 1982-07-23 Stein George IC engine ignition spark plug - uses refractory metal wire loop spanning earth electrode to absorb heat from combustion and assist plug gap ionisation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT400483B (en) * 1993-09-16 1996-01-25 Vaillant Gmbh BUSHING FOR AN ELECTRODE, ESPECIALLY THROUGH THE WALL OF A COMBUSTION CHAMBER

Also Published As

Publication number Publication date
BR8704769A (en) 1988-05-03
DE3761166D1 (en) 1990-01-18
ATE48688T1 (en) 1989-12-15
DE3631444A1 (en) 1988-03-17
JPS63121284A (en) 1988-05-25
US4766861A (en) 1988-08-30
EP0260576B1 (en) 1989-12-13

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