EP1045137A2 - Zündvorrichtung für Kolben-Brennkraftmaschinen - Google Patents
Zündvorrichtung für Kolben-Brennkraftmaschinen Download PDFInfo
- Publication number
- EP1045137A2 EP1045137A2 EP00105457A EP00105457A EP1045137A2 EP 1045137 A2 EP1045137 A2 EP 1045137A2 EP 00105457 A EP00105457 A EP 00105457A EP 00105457 A EP00105457 A EP 00105457A EP 1045137 A2 EP1045137 A2 EP 1045137A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- electrode
- ignition device
- counter electrode
- electrodes
- 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
Links
Images
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 with the features of the preamble of claim 1.
- Such an ignition device is known from WO 96/13660 A. It is a Spark To Piston "Device in which the piston electrode protrudes slightly from the piston crown and is aligned with the counter electrode, which is located approximately in the center of the combustion chamber. Such a device is particularly unsuitable for igniting extremely lean mixtures, since the spark gap only There is a minimal distance at the top dead center of the piston .. Whether an ignition spark actually forms depends on various factors that differ over the entire operating range of the internal combustion engine, including a sufficiently ignitable mixture, the operating temperature, the ignition energy and the slope for the structure of the secondary voltage.
- the invention has for its object an ignition device of the aforementioned To create a type that is sure to be a winner even with extremely lean mixtures Triggers ignition process.
- the Length of the spark gap for a period of time that is longer than the ignition duration and includes this period of time keep it at least approximately constant. While During this time, the piston and counter electrodes lead over a certain path of the counter electrode a relative movement through. This allows the time at which the ignition actually takes place, variable at least within certain limits be chosen on the movement of the piston. The time can therefore be sent to the be adapted to the respective operating conditions and in accordance with these conditions vary.
- the device described with the features of claim 3 draws compared to an alternative device, in which also the counter electrode is characterized by a simple construction.
- Cylinder 1 In the embodiment shown in Figures 1 and 2 is in one Cylinder 1 is a piston 2, which is movable by a drive 3. In the bottom 4 of the piston 2 there is a piston electrode 5 which emerges from the bottom as shown protrudes.
- a counter-electrode 6 is assigned to the electrode 5 and is connected via a high-voltage supply 7 and a high-voltage connection 8 with a not shown Ignition coil is connected.
- the electrode 5 moves during the movement of the piston 2 past the counter electrode 6.
- the electrode 5 moves during a period which is before the top dead center of the piston 2 shown in FIG. 2 and ends significantly after this point in time, there is a constant minimum distance between electrodes 5 and 6.
- an ignition spark if the high-voltage connection 8 is actuated accordingly with which it is possible to ignite particularly lean mixtures.
- the piston electrode 15 is a support point in the piston crown educated. It consists of an electrically conductive cap 17 on a Isolator 18 sits. The insulator 18 is fastened in the piston crown. A spark that forms between the piston crown 4 and the counter electrode 6, overcomes now two insulation sections 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 is significantly less than at least minimum distance 21 existing during the ignition process the counter electrode 6 and the bottom 4.
- the ignition devices shown are therefore particularly suitable for use in Internal combustion engines with gasoline direct injection, where only an ignitable locally 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)
Abstract
Description
- Fig. 1
- einen Schnitt durch den Zylinder einer Brennkraftmaschine mit einer ersten Ausführung der erfindungsgemäßen Zündvorrichtung,
- Fig. 2
- den Schnitt von Fig. 1 für einen demgegenüber geänderten Bewegungszustand des Kolbens, und
- Fig. 3
- eine zweite Ausführungsform in schematischer Darstellung.
Claims (7)
- Zündvorrichtung für Kolben-Brennkraftmaschinen mit einer im Kolbenboden angeordneten bewegbaren Kolbenelektrode und einer im Zylinderkopf angeordneten Gegen-Elektrode, und mit einer sich zwischen den beiden Elektroden ausbildenden Funkenstrecke, dadurch gekennzeichnet, daß die räumliche Anordnung der beiden Elektroden derart ist, daß die Funkenstrecke kleiner als der minimale Abstand zwischen der Gegen-Elektrode und dem Kolbenboden ist.
- Zündvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die räumliche Zuordnung der beiden Elektroden derart ist, daß der minimale Abstand der beiden Elektroden unmittelbar vor und/oder nach dem Zündvorgang zumindest annähernd konstant ist.
- Zündvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Kolbenelektrode seitlich zur Gegenelektrode bewegt ist.
- Zündvorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die Kolbenelektrode am oberen Totpunkt des Kolbens über die Gegenelektrode hinausragt.
- Zündvorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Gegenelektrode einen zur Kolbenelektrode hin gerichteten elektrisch leitenden Fortsatz aufweist.
- Zündvorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Funkenstrecke einen konstanten längenmäßig invariablen Anteil besitzt.
- Zündvorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß die Kolbenelektrode als eine gegenüber dem Kolbenboden isoliert angeordnete Stützstelle aus elektrisch leitfähigem Material ausgebildet ist.
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 true EP1045137A2 (de) | 2000-10-18 |
EP1045137A3 EP1045137A3 (de) | 2002-07-31 |
EP1045137B1 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 (de) |
EP (1) | EP1045137B1 (de) |
JP (1) | JP2000297734A (de) |
DE (2) | DE19916806A1 (de) |
ES (1) | ES2257983T3 (de) |
Families Citing this family (6)
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 |
WO2007079347A2 (en) * | 2005-12-16 | 2007-07-12 | 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 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996013660A1 (en) | 1994-10-27 | 1996-05-09 | Saab Automobile Aktiebolag | Fuel injection arrangement with ignition plug function |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE214918C (de) * | ||||
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 |
-
1999
- 1999-04-14 DE DE19916806A patent/DE19916806A1/de not_active Ceased
-
2000
- 2000-03-15 DE DE50012242T patent/DE50012242D1/de not_active Expired - Fee Related
- 2000-03-15 ES ES00105457T patent/ES2257983T3/es not_active Expired - Lifetime
- 2000-03-15 EP EP00105457A patent/EP1045137B1/de not_active Expired - Lifetime
- 2000-04-03 JP JP2000100988A patent/JP2000297734A/ja active Pending
- 2000-04-14 US US09/549,588 patent/US6453862B1/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996013660A1 (en) | 1994-10-27 | 1996-05-09 | Saab Automobile Aktiebolag | Fuel injection arrangement with ignition plug function |
Also Published As
Publication number | Publication date |
---|---|
ES2257983T3 (es) | 2006-08-16 |
DE50012242D1 (de) | 2006-04-27 |
US6453862B1 (en) | 2002-09-24 |
EP1045137A3 (de) | 2002-07-31 |
JP2000297734A (ja) | 2000-10-24 |
EP1045137B1 (de) | 2006-02-22 |
DE19916806A1 (de) | 2000-10-26 |
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