EP0406350B1 - Raccordement a la masse pour les bougies d'allumage d'un moteur a combustion interne a plusieurs cylindres d'un vehicule automobile - Google Patents

Raccordement a la masse pour les bougies d'allumage d'un moteur a combustion interne a plusieurs cylindres d'un vehicule automobile Download PDF

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Publication number
EP0406350B1
EP0406350B1 EP89912223A EP89912223A EP0406350B1 EP 0406350 B1 EP0406350 B1 EP 0406350B1 EP 89912223 A EP89912223 A EP 89912223A EP 89912223 A EP89912223 A EP 89912223A EP 0406350 B1 EP0406350 B1 EP 0406350B1
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EP
European Patent Office
Prior art keywords
earth
spark plug
vehicle
spark
cable
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.)
Expired - Lifetime
Application number
EP89912223A
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German (de)
English (en)
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EP0406350A1 (fr
Inventor
Uwe Brandt
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Publication of EP0406350A1 publication Critical patent/EP0406350A1/fr
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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
    • H01T13/02—Details
    • H01T13/04—Means providing electrical connection to sparking plugs
    • H01T13/05—Means providing electrical connection to sparking plugs combined with interference suppressing or shielding means

Definitions

  • the invention relates to a ground connection for the spark plugs of a multi-cylinder internal combustion engine for a vehicle, the metallic plug housing of each spark plug having a ground electrode and being screwed into a cylinder head of the engine, and the engine having a vehicle ground and the vehicle ground having a pole of the battery of the vehicle is electrically connected.
  • Spark plugs are components of an ignition system for an internal combustion engine of a vehicle.
  • Each spark plug consists of a metal center electrode that is embedded in a ceramic insulator. The lower part of the insulator is held by a metallic candle housing, which has a connection thread for screwing the candle into a cylinder head of the engine.
  • a second electrode, the ground electrode is welded to the base of the candle. The ground electrode is connected to the vehicle ground via the cylinder head of the engine.
  • the ground electrode has a fixed air gap to the center electrode, the electrode gap. High voltage ignition current coming from the distributor flows through the center electrode and bridges the electrode gap as a spark.
  • the spark must be strong enough to ignite the fuel mixture. This requires a relatively large electrode gap. However, the greater the electrode spacing, the greater the voltage required to generate the spark.
  • the invention has for its object to provide a ground connection, with the help of which the ignition is improved.
  • the invention is based on the knowledge that it is not only a question of increasing the voltage. Rather, the invention is characterized in that an additional ground cable is provided for improving the ignition for each spark plug, which is connected to the plug housing of the associated spark plug, and in that the additional ground cables are connected to a common ground cable connected to the negative pole of the battery connected is.
  • a significantly more powerful spark is generated.
  • the engine starts better than an engine without an additional earth cable. His cold run is better; the engine doesn't buck.
  • the engine reaches its operating temperature faster, but does not become too hot. Warming up the engine is calm and powerful.
  • the sprint of the vehicle is better, regardless of whether the engine is still cold or already warm.
  • the performance of the engine on the mountain is very good.
  • the fuel consumption is lower. - -.
  • the more powerful spark leads to fewer misfires.
  • the combustion of the fuel is cleaner and more environmentally friendly.
  • the spark plugs also stay cleaner. After all, the combustion chamber - pistons and valves - is cleaner.
  • the optimal setting of the engine with the help of the additional earth cable leads to results that are also remarkable for the special exhaust gas examination.
  • the electrical circuit of a motor vehicle is fed from a battery 1.
  • the positive pole 12 of this battery 1 is connected to an ignition distributor via an ignition lock and an ignition coil (not shown).
  • One of - in the exemplary embodiment - four spark plugs 31 to 34 of the ignition current is supplied via the ignition distributor with the aid of lines 21 to 24.
  • the extended line 21 supplies the spark plug 31 with the ignition current.
  • the lines 22 to 24, which lead to the spark plugs 32 to 34, are de-energized. They carry the ignition current cyclically when the distributor is turned.
  • the negative pole 13 of the battery 1 is connected to the vehicle ground 5, usually to the vehicle body. All other electrical devices of the motor vehicle are also connected to the vehicle ground 5.
  • a ground cable 4 also extends from the negative pole 13 of the battery 1. Secondary cables 41 to 44 are connected to this additional ground cable 4, each of which is connected to one of the spark plugs 31 to 34.
  • Each spark plug 31 to 34 consists of a center electrode 61 which is embedded in a ceramic insulator 62.
  • the lower part of the ceramic insulator 62 is received by a metallic candle housing 63.
  • the metallic plug housing 63 has a connection thread 64 for screwing the spark plug into a cylinder head 71 of an engine 7.
  • a second electrode, the ground electrode 66, is welded to the plug base 65. It is connected to the vehicle mass 5 via the cylinder head 71.
  • the ground cable 4 which is fastened to the negative pole 13 of the battery 1 on the one hand, is fastened to the candle housing 63 via its auxiliary cable 41.
  • a hole is drilled in the candle housing 63 in the axial direction, into which the free end of the secondary cable 41 is inserted and welded.
  • Other types of attachment of the earth cable 4 to the spark plugs 31 to 34 are possible.
  • a ring can be attached to the ground cable 4, 41, which is placed around the candle housing 63.
  • a clamping shoe can also be attached, which with the plug housing 63 is screwed.
  • Other types of attachment of the earth cable more precisely the ends of the auxiliary cables 41 to 44 with the spark plugs 31 to 34, are possible.
  • the invention can be used commercially for all spark plugs that are components of a multi-cylinder internal combustion engine for a vehicle.

Landscapes

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

Abstract

Dans les bougies d'allumage, le culot métallique (63) de la bougie est connecté à la masse (5) du véhicule, par l'intermédiaire de la culasse (71) du moteur (7). Ceci n'est pas suffisant pour avoir une étincelle d'allumage puissante. Pour améliorer l'allumage, il est prévu, pour chaque bougie d'allumage (31 à 34), un câble supplémentaire de mise à la masse (41 à 44), lequel est connecté au culot (63) de la bougie correspondante. Les câbles supplémentaires de mise à la masse (41 à 44) sont connectés à un câble commun de mise à la masse (4) raccordé au pôle moins (12) de la batterie (1).

Claims (4)

  1. Raccordement à la masse pour les bougies d'allumage d'un moteur à combustion interne polycylindrique d'un véhicule automobile, le culot métallique (63) de chaque bougie d'allumage (31 à 34) comprenant une électrode de masse (66) et étant vissé dans une tête de cylindre (71) du moteur, et le moteur étant relié à une masse (5) du véhicule et la masse du véhicule étant reliée électriquement à un pôle (13) de la batterie (1) du véhicule, caractérisé en ce que pour améliorer l'allumage, il est prévu pour chaque bougie (31 à 34) une mise à la masse supplémentaire sous la forme d'un câble de mise à la masse (41 à 44) lequel est relié à chaque fois au culot (63) de la bougie d'allumage associée, et que les câbles de mise à la masse supplémentaire (41 à 44) sont raccordés à un câble de mise à la masse (4) commun lequel est relié au pôle négatif (13) de la batterie (1).
  2. Raccordement à la masse selon la revendication 1, caractérisé en ce que sur le câble de mise à la masse supplémentaire (41 à 44) est fixée une bague qui est placée autour du culot (63) de la bougie.
  3. Raccordement à la masse selon la revendication 1, caractérisé en ce qu'à l'extrémité du câble de mise à la masse (41 à 44) est fixée une cosse de câble vissée sur le culot (63) de la bougie.
  4. Raccordement à la masse selon la revendication 1, caractérisé en ce que l'extrémité du câble de mise à la masse (41 à 44) associée au culot (63) de la bougie est enfichée et soudée dans un trou (67) percé dans le culot (63) de la bougie.
EP89912223A 1989-01-07 1989-11-10 Raccordement a la masse pour les bougies d'allumage d'un moteur a combustion interne a plusieurs cylindres d'un vehicule automobile Expired - Lifetime EP0406350B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3900321A DE3900321C1 (fr) 1989-01-07 1989-01-07
DE3900321 1989-01-07

Publications (2)

Publication Number Publication Date
EP0406350A1 EP0406350A1 (fr) 1991-01-09
EP0406350B1 true EP0406350B1 (fr) 1993-09-08

Family

ID=6371688

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89912223A Expired - Lifetime EP0406350B1 (fr) 1989-01-07 1989-11-10 Raccordement a la masse pour les bougies d'allumage d'un moteur a combustion interne a plusieurs cylindres d'un vehicule automobile

Country Status (4)

Country Link
EP (1) EP0406350B1 (fr)
JP (1) JPH03503336A (fr)
DE (2) DE3900321C1 (fr)
WO (1) WO1990007811A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4415618C2 (de) * 1994-05-04 1997-02-13 Delphi Automotive Systems Gmbh Einrichtung zum Masseanschluß von elektrischen Kabeln, insbesondere an einer Kraftfahrzeug-Karosserie

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB324402A (en) * 1928-10-26 1930-01-27 George Maurice Wright Improvements in or relating to screening arrangements for use with internal combustion engine ignition systems
US2253531A (en) * 1939-10-02 1941-08-26 Titeflex Metal Hose Co Radio shielded ignition
US2409732A (en) * 1942-10-30 1946-10-22 Gen Motors Corp Screening device for spark plugs
FR1046902A (fr) * 1951-10-29 1953-12-09 Embout blindé pour l'antiparasitage des systèmes d'allumage de moteurs à explosion
US2768227A (en) * 1952-03-06 1956-10-23 Ruckelshaus John Greer Low tension ignition systems
US3293352A (en) * 1964-04-24 1966-12-20 Hallett Mfg Company Spark plug attachment for grounding sheathed wires
JPS50101740A (fr) * 1974-01-18 1975-08-12
JPS5352838A (en) * 1976-10-06 1978-05-13 Ngk Spark Plug Co Ltd Jamming wave suppressing apparatus for auto-bicycles
JPS59706B2 (ja) * 1978-03-03 1984-01-07 林精鋼株式会社 ガソリンエンヂンに於けるスパ−クの強化装置
US4465331A (en) * 1980-10-02 1984-08-14 Kioritz Corporation Device for preventing radio frequency interference from spark plug

Also Published As

Publication number Publication date
DE58905559D1 (de) 1993-10-14
JPH03503336A (ja) 1991-07-25
WO1990007811A1 (fr) 1990-07-12
DE3900321C1 (fr) 1990-05-31
EP0406350A1 (fr) 1991-01-09

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