FR2479588A1 - Spark plug for IC engine - has ring shaped earth electrode surrounding central electrode peg - Google Patents

Spark plug for IC engine - has ring shaped earth electrode surrounding central electrode peg Download PDF

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Publication number
FR2479588A1
FR2479588A1 FR8007079A FR8007079A FR2479588A1 FR 2479588 A1 FR2479588 A1 FR 2479588A1 FR 8007079 A FR8007079 A FR 8007079A FR 8007079 A FR8007079 A FR 8007079A FR 2479588 A1 FR2479588 A1 FR 2479588A1
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FR
France
Prior art keywords
spark plug
electrode
ring
engine
ring shaped
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
FR8007079A
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French (fr)
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FR2479588B1 (en
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Individual
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Individual
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 Individual filed Critical Individual
Priority to FR8007079A priority Critical patent/FR2479588A1/en
Priority to JP4255681A priority patent/JPS56149792A/en
Publication of FR2479588A1 publication Critical patent/FR2479588A1/en
Application granted granted Critical
Publication of FR2479588B1 publication Critical patent/FR2479588B1/fr
Granted legal-status Critical Current

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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
    • H01T13/46—Sparking plugs having two or more spark gaps
    • H01T13/467—Sparking plugs having two or more spark gaps in parallel connection

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  • Spark Plugs (AREA)

Abstract

The spark plug for an internal combustion engine (1) has a conventional upper body, and a central solid cylindrical electrode (2) extending axially through the metal casing. The earth electrode (3) comprises a flat ring with a central hole (5) surrounding the axial electrode (2). The ring is made with one, two, or three small tabs (4) extending from its edge in a direction perpendicular to the plane of the ring. The tabs are used to support the ring, being welded to the main body of the plug. The design simplifies manufacture to the extent that it can be done by machine.

Description

II est connu depuis de nombreuses décennies de réaliser des bougies à électrodes annulaires comportant une électrode centrale de révolution et une électrode extérieure circulaire faisant partie du corps, I'étincelle jaillissant annulairement entre ces électrodes. It has been known for many decades to produce candles with annular electrodes comprising a central electrode of revolution and a circular external electrode forming part of the body, the spark springing annularly between these electrodes.

Ces bougies sont de réalisation relativement onéreuse et elles comportent une capacité communicant mal avec le cylindre. These candles are relatively expensive to make and they have a poorly communicating capacity with the cylinder.

L'invention, objet du présent brevet, remédie à ces inconvénients. The invention which is the subject of this patent overcomes these drawbacks.

Elle est caractérisée en ce que ltélectrode extérieure circulaire est constituée par un élement métallique plan de préférence, percé en son centre, comportant à proximité de sa périphérie au moins une patte ou téton sensiblement parallèle à l'axe de la bougie permettant de le fixer par soudure sur le corps de la dite bougie.It is characterized in that the circular external electrode is constituted by a planar metallic element preferably, pierced in its center, comprising near its periphery at least one lug or stud substantially parallel to the axis of the candle making it possible to fix it by solder on the body of said candle.

Les inconvénients des bougies annulaires sont ainsi supprimés : la fabrication peut se faire sur des machines automatiques analogues ou identiques à celles utilisées pour la réalisation des bougies classiques. The disadvantages of annular candles are thus eliminated: the manufacturing can be done on automatic machines similar or identical to those used for the production of conventional candles.

L'électrode extérieure ne limite une capacité que sur une surface de faible section, le reste étant largement ouvert. The external electrode limits a capacity only on a surface of small section, the rest being widely open.

Les caractéristiques de l'invention seront précisées au cours de la description qui suit donnée uniquement à titre d'exemple de réalisation. The characteristics of the invention will be clarified during the description which follows, given solely by way of example of embodiment.

La figure l est une vue en élévation d'une bougie selon l'invention. Figure l is an elevational view of a candle according to the invention.

La figure 2 est une coupe par l'axe d'une électrode annulaire munie d'une patte de fixation dont la figure 5 est la vue en plan. Figure 2 is a section through the axis of an annular electrode provided with a fixing lug of which Figure 5 is the plan view.

La figure 3 est une coupe par isaxe d'une électrode annulaire à deux pattes de fixation dont la figure 6 est la vue en plan. Figure 3 is a section through isaxial of an annular electrode with two fixing lugs of which Figure 6 is the plan view.

La figure 4 est une coupe par l'axe d'une électrode annulaire à trois pattes de fixation dont la figure 7 est la vue en plan. Figure 4 is a section through the axis of an annular electrode with three fixing lugs of which Figure 7 is the plan view.

A la figure l le corps (1) de la bougie est traversé axialement et sans contact avec lui par l'électrode centrale cylindrique (2) ainsi qu'il est classique de le faire dans la majorité des bougies existantes. In FIG. 1, the body (1) of the spark plug is crossed axially and without contact with it by the cylindrical central electrode (2), as is conventional in the majority of existing candles.

L'électrode annulaire (3)' est percée en sont centre du trou (5) circulaire qui entoure à distance convenable l'électrode centrale (2) ou est disposée coaxialement à distance convenable. The annular electrode (3) 'is pierced by its center of the circular hole (5) which surrounds the central electrode (2) at a suitable distance or is arranged coaxially at a suitable distance.

L'électrode (5) est reliée par la patte (4) au corps de bougie 0). The electrode (5) is connected by the tab (4) to the spark plug body 0).

La même description s'appiique aux autre figures qui ne diffèrent que par le nombre de pattes (4) reliant l'électrode annulaire (3) au corps (l).  The same description applies to the other figures which differ only in the number of lugs (4) connecting the annular electrode (3) to the body (l).

Claims (2)

RevendicationsClaims 1. Bougie d'allumage pour moteur à explosion caractérisée en ce que l'électrode solidaire du corps est annulaire d'épaisseur suffisamment faible pour laisser un large espace cylindrique ouvert entre elle et le dit corps. 1. Spark plug for an internal combustion engine characterized in that the electrode integral with the body is annular with a thickness sufficiently small to leave a large cylindrical space open between it and the said body. 2. Bougie d'allumage selon la revendication l caractérisée en ce que l'électrode annulaire est rendue solidaire du corps de la bougie par au moins une patte ou téton situé vers sa périphérie et de direction sensiblement axiale.  2. Spark plug according to claim l characterized in that the annular electrode is made integral with the body of the spark plug by at least one lug or stud located towards its periphery and of substantially axial direction.
FR8007079A 1980-03-28 1980-03-28 Spark plug for IC engine - has ring shaped earth electrode surrounding central electrode peg Granted FR2479588A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR8007079A FR2479588A1 (en) 1980-03-28 1980-03-28 Spark plug for IC engine - has ring shaped earth electrode surrounding central electrode peg
JP4255681A JPS56149792A (en) 1980-03-28 1981-03-25 Ignition plug

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8007079A FR2479588A1 (en) 1980-03-28 1980-03-28 Spark plug for IC engine - has ring shaped earth electrode surrounding central electrode peg

Publications (2)

Publication Number Publication Date
FR2479588A1 true FR2479588A1 (en) 1981-10-02
FR2479588B1 FR2479588B1 (en) 1983-06-17

Family

ID=9240285

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8007079A Granted FR2479588A1 (en) 1980-03-28 1980-03-28 Spark plug for IC engine - has ring shaped earth electrode surrounding central electrode peg

Country Status (2)

Country Link
JP (1) JPS56149792A (en)
FR (1) FR2479588A1 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0167687A1 (en) * 1984-07-10 1986-01-15 Wen-Tu Wang A spark plug with a ring-shaped ground electrode
US4808878A (en) * 1985-07-03 1989-02-28 Takeaki Kashiwara Ignition plug for internal combustion engines to cause instant combustion
US4851732A (en) * 1986-10-27 1989-07-25 Takeaki Kashiwara Spark plug having a flame deflector for use in an internal combustion engine
US4901688A (en) * 1988-10-26 1990-02-20 Ryohei Kashiwara Ignition plug for use in internal combustion engines and an ignition process by the use thereof
FR2640091A1 (en) * 1988-11-24 1990-06-08 Kashiwara Ryohei HOLLOW CYLINDRICAL MOLD ELECTRODE IGNITION CANDLE AND METHOD FOR IMPLEMENTING THE SAME
US4983877A (en) * 1988-04-12 1991-01-08 Ryohei Kashiwara Ignition plug for use in internal combustion engines to cause instantaneous combustion
US5007389A (en) * 1987-12-17 1991-04-16 Ryohei Kashiwara Ignition plug for internal combustion engines and a process for igniting gas mixture by the use thereof
US5090373A (en) * 1990-11-30 1992-02-25 Ryohei Kashiwara Auxiliary device attachable to a convention spark plug
US5408961A (en) * 1993-08-09 1995-04-25 Innovative Automative Technologies Int. Ltd. Ignition plug
FR2731848A1 (en) * 1995-03-17 1996-09-20 Ader Bernard Annular earth electrode for spark plug
US9742159B1 (en) 2016-02-18 2017-08-22 Federal-Mogul Ignition Gmbh Spark plug for a gas-powered internal combustion engine and method for the manufacture thereof

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0167687A1 (en) * 1984-07-10 1986-01-15 Wen-Tu Wang A spark plug with a ring-shaped ground electrode
US4808878A (en) * 1985-07-03 1989-02-28 Takeaki Kashiwara Ignition plug for internal combustion engines to cause instant combustion
US4851732A (en) * 1986-10-27 1989-07-25 Takeaki Kashiwara Spark plug having a flame deflector for use in an internal combustion engine
US5007389A (en) * 1987-12-17 1991-04-16 Ryohei Kashiwara Ignition plug for internal combustion engines and a process for igniting gas mixture by the use thereof
US4983877A (en) * 1988-04-12 1991-01-08 Ryohei Kashiwara Ignition plug for use in internal combustion engines to cause instantaneous combustion
US4901688A (en) * 1988-10-26 1990-02-20 Ryohei Kashiwara Ignition plug for use in internal combustion engines and an ignition process by the use thereof
FR2640091A1 (en) * 1988-11-24 1990-06-08 Kashiwara Ryohei HOLLOW CYLINDRICAL MOLD ELECTRODE IGNITION CANDLE AND METHOD FOR IMPLEMENTING THE SAME
US5090373A (en) * 1990-11-30 1992-02-25 Ryohei Kashiwara Auxiliary device attachable to a convention spark plug
US5408961A (en) * 1993-08-09 1995-04-25 Innovative Automative Technologies Int. Ltd. Ignition plug
FR2731848A1 (en) * 1995-03-17 1996-09-20 Ader Bernard Annular earth electrode for spark plug
US9742159B1 (en) 2016-02-18 2017-08-22 Federal-Mogul Ignition Gmbh Spark plug for a gas-powered internal combustion engine and method for the manufacture thereof

Also Published As

Publication number Publication date
JPS56149792A (en) 1981-11-19
FR2479588B1 (en) 1983-06-17

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