EP0147613A2 - Bougie d'allumage pour un moteur à combustion interne - Google Patents

Bougie d'allumage pour un moteur à combustion interne Download PDF

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Publication number
EP0147613A2
EP0147613A2 EP84113964A EP84113964A EP0147613A2 EP 0147613 A2 EP0147613 A2 EP 0147613A2 EP 84113964 A EP84113964 A EP 84113964A EP 84113964 A EP84113964 A EP 84113964A EP 0147613 A2 EP0147613 A2 EP 0147613A2
Authority
EP
European Patent Office
Prior art keywords
spark gap
spark
combustion engine
spark plug
internal combustion
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Withdrawn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
EP84113964A
Other languages
German (de)
English (en)
Other versions
EP0147613A3 (fr
Inventor
Werner Dr. Dipl.-Ing. Herden
Werner Prof. Dr. Bloss
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 EP0147613A2 publication Critical patent/EP0147613A2/fr
Publication of EP0147613A3 publication Critical patent/EP0147613A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P13/00—Sparking plugs structurally combined with other parts of internal-combustion engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P3/00—Other installations
    • F02P3/06—Other installations having capacitive energy storage
    • F02P3/08—Layout of circuits
    • F02P3/0807—Closing the discharge circuit of the storage capacitor with electronic switching means
    • F02P3/0823—Closing the discharge circuit of the storage capacitor with electronic switching means with electronic tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P9/00—Electric spark ignition control, not otherwise provided for
    • F02P9/002—Control of spark intensity, intensifying, lengthening, suppression
    • 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
    • H01T13/462—Sparking plugs having two or more spark gaps in series connection
    • H01T13/465—Sparking plugs having two or more spark gaps in series connection one spark gap being incorporated in the sparking plug
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder

Definitions

  • the invention relates to a spark plug according to the preamble of the main claim.
  • a spark plug lying in this direction is already known (for example according to DE-OS 2 363 804 or DE-OS 2 810 159), which is particularly distinguished in its use in that lean fuel-air mixtures are also present Sufficient safety are ignited and there is a good energy yield of the fuel that further complete combustion of the fuel-air mixture occurs and thus one obtains favorable exhaust gas values and that ignition voltage pulses generated by conventional ignition systems can finally be used.
  • This is due to the fact that a particularly large amount of energy is converted in the breakdown phase of the initial phase of the ignition spark.
  • the spark gap causes a not inconsiderable loss of energy, by which the amount of energy for the ignition of the fuel-air mixture is considerably reduced.
  • FIG. 1 shows the circuit diagram of an ignition system with a spark plug designed according to the invention
  • FIG. 2 shows the structural design of such a spark plug in a sectional view.
  • the ignition system shown in Figure 1 is intended for an internal combustion engine, not shown, of a motor vehicle, also not shown.
  • This ignition system is fed from a direct current source 1, which can be the battery of the motor vehicle.
  • a line 2 leading to ground and a positive lead via an operating switch (ignition switch) 3 leads from the negative pole.
  • the supply line 4 is the starting point for a circuit branch which first leads to the ground line 2 via the primary winding 5 of an ignition coil 6 and then via an interrupter switch 7.
  • the interrupter switch 7, which has a spark extinguishing capacitor 8 in its shunt, can be opened at the time of ignition by a cam 9 driven by the internal combustion engine, ie, brought into its locked state.
  • the secondary winding 10 belonging to the Zündspu_le 6 is connected with the one winding end to the connection between the primary winding 5 and the circuit breaker 7 and with the other winding end to a high-voltage connection 11 belonging to a spark plug.
  • a connection emerges from the high-voltage connection 11, which leads first to ground via a spark gap 12 and then via a spark gap 13.
  • a capacitor 14 is connected in parallel with the series circuit consisting of the spark gap 12 and the ignition spark gap 13.
  • the spark gap 13 can have a shunt branch 15, which should have an inductive component. With 17 an ohmic resistance is designated. which can be formed by the wire resistance of the inductive component 17 and / or by an additional circuit element inserted into the shunt circuit.
  • the high-voltage connection 11, the spark gap 12, the spark gap 13, the capacitor 14 and the shunt branch 15 belong to a structural unit which is shown as an example in FIG. 2 and can be screwed into the cylinder housing of the internal combustion engine in the conventional manner as a spark plug.
  • An isolator 18 and a metal housing 19 holding the individual parts together belong to this structural unit as further essential parts.
  • the main one Lichen rod-shaped insulator 18 of circular cross-section is composed of a foot part 20 and a head part 21. In this case, these two parts 20, 21 overlap with sleeve-shaped sections 22, 23 in a coaxial position over a length such that an intermediate space remains in the form of an annular cross section for receiving the capacitor 14.
  • a film capacitor is advantageously used, which represents a wound hollow cylinder and is contacted on its end faces to produce its electrical connection.
  • the high-voltage connection 11 is formed by a bolt 24 which is firmly seated in the head part 21 and which projects out of the head part 21 with a threaded section 24 '.
  • the first section 25 of a central electrode 26 connects to the high-voltage connection 11.
  • the first section 25 of the central electrode 26 has a connection at one end to the high-voltage connection 11 and at its other end to the one electrode 27 of the spark gap 12.
  • the other electrode 28 of the spark gap 12 has a connection to the end face of a second section 29 of the center electrode 26, the other end side of this section 29 protruding from the end face of the foot part 20 facing away from the high-voltage connection 11. This protruding end forms with a horn-shaped counter electrode 30 the spark gap 13.
  • the horn-shaped counter electrode 30 protrudes from the end of the sleeve-shaped metal housing 19 facing away from the high-voltage connection 11, which encloses the foot part 20 and the foot of the head part 21 so that the individual parts of the spark plug be held together.
  • the capacitor 14 has on one end face with the electrode 27 of the spark gap 12 and on the other Front side by a contact 31 indicated with a strong line with the metal housing 19 electrical connection.
  • the shunt branch 15 is formed, for example, by a spiral 32 made of electrically conductive material, which runs between the metal housing 19 and the end of the second section 29 of the center electrode 26 protruding from the foot part 20.
  • the arrangement is selected so that an inductive component 16 and an ohmic component 17 result.
  • the discharge circuit consisting of the elements 12, 13, 14, is designed from the point of view of maximum frequency, i.e. that it has a low inductance and also a low ohmic resistance.
  • the screw bolt 24 forming the high-voltage connection 11, the first section 25 of the central electrode 26, the cylindrical electrodes 27, 28 of the spark gap 12, which are rounded on their opposite ends, and the second section 29 of the central electrode 26 are arranged in the insulator 18 such that their longitudinal central axes coincide with the longitudinal central axis of the insulator 18.
  • the distance between the electrodes 27, 28 belonging to the spark gap 12 is fixed by a sleeve 33.
  • the electrodes 27, 28 belonging to the spark gap protrude into a cavity 34 which is located within the insulator 18 and is under gas pressure.
  • nitrogen should be used as the gas.
  • the gas pressure should be 2 to 100 bar, preferably 5 to 30 bar.
  • the electrodes 27, 28 of the spark gap 12, which are made of copper, for example, should have a distance of 0.05 to 2 mm, preferably 0.1 to 1 mm, from one another.
  • the shunt branch 15 With the shunt branch 15, the occurrence of arcing and glow discharges is counteracted, as a result of which the erosion at the spark gap 13 can be reduced.
  • the inventive design of the spark gap 12 ensures that a relatively small energy loss occurs at this spark gap, which means that a sufficient amount of energy for the ignition of the fuel-air mixture can be provided at any time.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Spark Plugs (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
EP84113964A 1983-12-24 1984-11-19 Bougie d'allumage pour un moteur à combustion interne Withdrawn EP0147613A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833347027 DE3347027A1 (de) 1983-12-24 1983-12-24 Zuendkerze fuer eine brennkraftmaschine
DE3347027 1983-12-24

Publications (2)

Publication Number Publication Date
EP0147613A2 true EP0147613A2 (fr) 1985-07-10
EP0147613A3 EP0147613A3 (fr) 1985-08-07

Family

ID=6218108

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84113964A Withdrawn EP0147613A3 (fr) 1983-12-24 1984-11-19 Bougie d'allumage pour un moteur à combustion interne

Country Status (4)

Country Link
US (1) US4613789A (fr)
EP (1) EP0147613A3 (fr)
JP (1) JPS60157182A (fr)
DE (1) DE3347027A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994017302A1 (fr) * 1993-01-29 1994-08-04 Dawson Royalties Limited Circuit d'allumage equipe d'un dispositif destine a diminuer la phase de decharge inductive d'une etincelle

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3603025A1 (de) * 1986-01-31 1987-08-06 Isotec Ag Zwischenschalteinheit fuer eine zuendanlage
JPH071711B2 (ja) * 1986-11-26 1995-01-11 日本電装株式会社 内燃機関用スパ−クプラグ
US6559376B2 (en) 1996-09-30 2003-05-06 Nology Engineering, Inc. Combustion initiation device and method for tuning a combustion initiation device
DE19833316A1 (de) * 1998-07-24 2000-01-27 Bosch Gmbh Robert Zündkerze für eine Brennkraftmaschine
US6374816B1 (en) 2001-04-23 2002-04-23 Omnitek Engineering Corporation Apparatus and method for combustion initiation
US6937455B2 (en) * 2002-07-03 2005-08-30 Kronos Advanced Technologies, Inc. Spark management method and device
FR2886689B1 (fr) * 2005-06-02 2010-12-17 Peugeot Citroen Automobiles Sa Systeme et procede d'allumage d'un moteur a combustion interne et moteur a combustion interne
FR2893455B1 (fr) * 2005-11-14 2007-12-14 Renault Sas Bougie d'allumage pour moteur a combustion interne
US8922102B2 (en) * 2006-05-12 2014-12-30 Enerpulse, Inc. Composite spark plug
US8049399B2 (en) 2006-07-21 2011-11-01 Enerpulse, Inc. High power discharge fuel ignitor
US7735460B2 (en) * 2008-02-01 2010-06-15 Leonard Bloom Method and apparatus for operating standard gasoline-driven engines with a readily-available non-volatile fuel, thereby obviating the use of gasoline
DE102011117600A1 (de) * 2011-11-04 2013-05-08 Andreas Stihl Ag & Co. Kg Zündvorrichtung für einen Zweitaktmotor
BR112014018428A8 (pt) 2012-01-27 2017-07-11 Enerpulse Inc Pluge de alta potência de lacuna de semi-superfície
US9828967B2 (en) 2015-06-05 2017-11-28 Ming Zheng System and method for elastic breakdown ignition via multipole high frequency discharge

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3742280A (en) * 1970-11-16 1973-06-26 Bosch Gmbh Robert Pre ignition gap for combustion engine ignition systems
DE2810159A1 (de) * 1978-03-09 1979-09-13 Bloss Werner H Prof Dr Ing Verfahren und einrichtung zur zuendung brennfaehiger gemische
EP0118789A1 (fr) * 1983-03-10 1984-09-19 Robert Bosch Gmbh Bougie d'allumage pour moteurs à combustion interne

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2376362A (en) * 1945-05-22 Ignition system
US1286316A (en) * 1913-10-20 1918-12-03 Cooper Hewitt Electric Co Electric translating apparatus.
US1704781A (en) * 1926-06-21 1929-03-12 Aspden Ralph Leonard Sparking plug suitable for internal-combustion engines
US2103038A (en) * 1933-08-24 1937-12-21 Gen Electric Gaseous electric arc discharge lamp device
GB994525A (en) * 1962-12-06 1965-06-10 Gen Motors Ltd Spark plugs
CH438466A (de) * 1966-05-17 1967-06-30 Bbc Brown Boveri & Cie In eine Druckgaskapselung eingebaute Funkenstrecke

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3742280A (en) * 1970-11-16 1973-06-26 Bosch Gmbh Robert Pre ignition gap for combustion engine ignition systems
DE2810159A1 (de) * 1978-03-09 1979-09-13 Bloss Werner H Prof Dr Ing Verfahren und einrichtung zur zuendung brennfaehiger gemische
EP0118789A1 (fr) * 1983-03-10 1984-09-19 Robert Bosch Gmbh Bougie d'allumage pour moteurs à combustion interne

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994017302A1 (fr) * 1993-01-29 1994-08-04 Dawson Royalties Limited Circuit d'allumage equipe d'un dispositif destine a diminuer la phase de decharge inductive d'une etincelle

Also Published As

Publication number Publication date
JPS60157182A (ja) 1985-08-17
US4613789A (en) 1986-09-23
DE3347027A1 (de) 1985-07-04
EP0147613A3 (fr) 1985-08-07

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Inventor name: HERDEN, WERNER, DR. DIPL.-ING.

Inventor name: BLOSS, WERNER, PROF. DR.