EP1045137B1 - Zündvorrichtung für Kolben-Brennkraftmaschinen - Google Patents

Zündvorrichtung für Kolben-Brennkraftmaschinen Download PDF

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Publication number
EP1045137B1
EP1045137B1 EP00105457A EP00105457A EP1045137B1 EP 1045137 B1 EP1045137 B1 EP 1045137B1 EP 00105457 A EP00105457 A EP 00105457A EP 00105457 A EP00105457 A EP 00105457A EP 1045137 B1 EP1045137 B1 EP 1045137B1
Authority
EP
European Patent Office
Prior art keywords
piston
electrode
ignition device
counter
ignition
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
EP00105457A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1045137A3 (de
EP1045137A2 (de
Inventor
Josef Holzmann
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke 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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP1045137A2 publication Critical patent/EP1045137A2/de
Publication of EP1045137A3 publication Critical patent/EP1045137A3/de
Application granted granted Critical
Publication of EP1045137B1 publication Critical patent/EP1045137B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F02P15/00—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits
    • F02P15/04—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits one of the spark electrodes being mounted on the engine working piston

Definitions

  • the invention relates to an ignition device for reciprocating internal combustion engines having the features of the preamble of claim 1.
  • Such an ignition device is known from DE 214 918 C and US-A-1 401 231.
  • a use of these igniters in internal combustion engines with gasoline direct injection may be problematic due to the only locally present ignitable mixture.
  • a further ignition device for reciprocating internal combustion engines with a arranged in the piston crown movable piston electrode and arranged in the cylinder head counter-electrode is known in which forms a spark gap between the two electrodes. It is a “spark to piston” device in which the piston electrode protrudes slightly from the piston crown and is arranged in alignment with the counter-electrode, which is located approximately in the center of the combustion chamber.
  • Such a device is not suitable in particular for igniting extremely lean mixtures, since the spark gap has a minimum distance only at top dead center of the piston. Whether an ignition spark actually develops depends on various factors which are different over the entire operating range of the internal combustion engine. These include a sufficiently flammable mixture, the operating temperature, the ignition energy and the edge steepness for the construction of the secondary voltage.
  • the invention has for its object to provide an ignition device of the type mentioned, which safely triggers an ignition even with extremely lean mixtures.
  • the length of the spark gap during a period of time that is longer than the ignition duration and includes this period at least approximately constant.
  • the piston and counterelectrode perform a relative movement over a certain path of the counterelectrode.
  • the time can therefore be adapted to the respective operating conditions and vary according to these conditions.
  • the device described with the features of claim 3 is distinguished from an alternative device, in which the counter-electrode is moved, by a simple structural design.
  • the means of claim 5 serve the formation of a Spark to promote even stronger.
  • a further variant, which can be used alternatively or in addition to the first variant, is specified in claim 6.
  • a piston 2 which is movable by a drive 3.
  • a piston electrode 5 which protrudes from the ground as shown.
  • a counter-electrode 6 Associated with the electrode 5 is a counter-electrode 6, which is connected via a high-voltage supply 7 and a high-voltage terminal 8 to an ignition coil, not shown.
  • the electrode 5 moves past the counter-electrode 6 during the movement of the piston 2.
  • the electrodes 5 and 6 there is a constant minimum distance between the electrodes 5 and 6.
  • this minimum distance forms a spark with appropriate control of the high voltage terminal 8 with which it is possible to ignite especially lean mixtures.
  • the piston electrode 15 is formed as a support point in the piston crown. It consists of an electrically conductive cap 17 which sits on an insulator 18. The insulator 18 is fixed in the piston crown.
  • a spark which forms between the piston bottom 4 and the counter-electrode 6, now overcomes two insulation paths 19 and 20, namely between the counter electrode 6 and the cap 17 on the one hand (19) and between the cap 17 and the bottom 4 (20).
  • the overall path to be overcome in this case is significantly lower than the minimum distance 21 between the counterelectrode 6 and the base 4, which exists at least during the ignition process.
  • the ignition devices shown are particularly suitable for use in internal combustion engines with gasoline direct injection, where only locally an ignitable mixture is present.

Landscapes

  • 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)
  • Spark Plugs (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
EP00105457A 1999-04-14 2000-03-15 Zündvorrichtung für Kolben-Brennkraftmaschinen Expired - Lifetime EP1045137B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19916806 1999-04-14
DE19916806A DE19916806A1 (de) 1999-04-14 1999-04-14 Zündvorrichtung für Kolben-Brennkraftmaschinen

Publications (3)

Publication Number Publication Date
EP1045137A2 EP1045137A2 (de) 2000-10-18
EP1045137A3 EP1045137A3 (de) 2002-07-31
EP1045137B1 true EP1045137B1 (de) 2006-02-22

Family

ID=7904514

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00105457A Expired - Lifetime EP1045137B1 (de) 1999-04-14 2000-03-15 Zündvorrichtung für Kolben-Brennkraftmaschinen

Country Status (5)

Country Link
US (1) US6453862B1 (es)
EP (1) EP1045137B1 (es)
JP (1) JP2000297734A (es)
DE (2) DE19916806A1 (es)
ES (1) ES2257983T3 (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE522013C2 (sv) * 2000-01-28 2004-01-07 Saab Automobile Förfarande för alstring av tändgnista och tändelektrodarrangemang vid en förbränningsmotor
US6634331B2 (en) * 2001-07-12 2003-10-21 Rosario Truglio Piston with integrated spark electrode
US7004120B2 (en) * 2003-05-09 2006-02-28 Warren James C Opposed piston engine
US20080300473A1 (en) * 2005-12-16 2008-12-04 Cas Medical Systems , Inc. Stabilized Multi-Wavelength Laser System for Non-Invasive Spectrophotometric Monitoring
US8813717B2 (en) * 2009-10-06 2014-08-26 Imagineering, Inc. Internal combustion engine
JP2017227164A (ja) * 2016-06-22 2017-12-28 いすゞ自動車株式会社 内燃機関の点火装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE214918C (es) *
US664360A (en) * 1896-12-26 1900-12-18 Albert T Otto Igniter gas or oil engines.
US1401231A (en) * 1921-07-09 1921-12-27 Anderson August Eugene Contact for spark-gaps
DE634853C (de) * 1934-07-17 1936-09-07 Otto Nagel Zuendeinrichtung fuer Brennkraftmaschinen
DE633611C (de) * 1934-12-20 1936-07-31 Otto Nagel Verstellbare Zuendvorrichtung fuer Brennkraftmaschinen
SE502604C2 (sv) * 1994-10-27 1995-11-20 Saab Automobile Bränsleinsprutningsanordning med tändstiftsfunktion

Also Published As

Publication number Publication date
ES2257983T3 (es) 2006-08-16
EP1045137A3 (de) 2002-07-31
DE50012242D1 (de) 2006-04-27
US6453862B1 (en) 2002-09-24
DE19916806A1 (de) 2000-10-26
JP2000297734A (ja) 2000-10-24
EP1045137A2 (de) 2000-10-18

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