EP1519038A1 - Laser-Zündeinrichtung für eine Brennkraftmaschine - Google Patents
Laser-Zündeinrichtung für eine Brennkraftmaschine Download PDFInfo
- Publication number
- EP1519038A1 EP1519038A1 EP03021446A EP03021446A EP1519038A1 EP 1519038 A1 EP1519038 A1 EP 1519038A1 EP 03021446 A EP03021446 A EP 03021446A EP 03021446 A EP03021446 A EP 03021446A EP 1519038 A1 EP1519038 A1 EP 1519038A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ignition device
- laser
- cooling
- resonator
- laser crystal
- 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
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 59
- 239000013078 crystal Substances 0.000 claims abstract description 47
- 239000007787 solid Substances 0.000 claims abstract description 5
- 239000002826 coolant Substances 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 description 5
- 229910052779 Neodymium Inorganic materials 0.000 description 4
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000002269 spontaneous effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000003667 anti-reflective effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000003574 free electron Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000541 pulsatile effect Effects 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical compound [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 0.000 description 1
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
- F02P23/00—Other ignition
- F02P23/04—Other physical ignition means, e.g. using laser rays
-
- 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
- F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
- F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition
Definitions
- the invention relates to a laser ignition device for an internal combustion engine, with a Q-switched, pumped solid-state laser with a pulsed Pump light source, a solid laser crystal embedded in a resonator, a Q-switch to increase the power density, at least one Auskoppelapt and a focusing device, over which the laser beam in a Brennraum is focusable.
- the photo-optical device of the known laser ignition device has three lenses on. Together with the active Q-switch and by a flash lamp formed pump light source results in the most serious disadvantage that the device not entirely in a screwed into a spark plug shaft Component can be accommodated. About the pumped solid state lasers required cooling of the laser crystal and the light source are the document no information to be taken.
- US Pat. No. 6,413,077 B1 describes a laser ignition device in which a plurality of lasers, namely an excitation laser and an ignition laser are used. through a Q-switch, the pulses of the excitation laser and the ignition laser added up and thus the energy density required for ignition provided.
- This known ignition device has the disadvantage of a very high constructive effort and requires too much space in order to replace a spark plug to be used in an internal combustion engine.
- the use of laser ignition instead of spark ignition offers a number of advantages.
- the relatively freely selectable location of the ignition plasma does not require any material structure which could disturb the combustion process.
- the choice of the ignition location allows an optimization of the combustion process, possibly also a multiple ignition.
- the high ignition pressures, such as occur in gas engines, are contrary to the laser ignition, since the required pulse energy decreases at higher pressures.
- the laser ignition ignites even lean mixtures, resulting in very low NO x emissions.
- the object of the invention is one for practical use in internal combustion engines to provide suitable laser ignition, which only a small amount of space claimed and which with little design effort in internal combustion engines can be used.
- this is achieved in that pumping light source, resonator including laser crystal, Q-switch, Auskoppelador, focusing device, and a cooling device for cooling the resonator in a single, in one Spark plug shaft insertable component are integrated.
- the pumping light source is formed by pump diodes is.
- Pump diodes have the advantage of a higher compared to flash lamps Efficiency.
- the laser diodes are doing with a pulse energy of a few mJ and about 100-200 ⁇ s pulsed, reducing the power per diode to a few 10W remains limited.
- High power laser diodes consist of an array of many single diodes and thereby achieve a very high pulse energy. Due to the large emission area and the non-continuous distribution (low quality), however, the laser beam be focused very badly. Through the long resonator can with a solid-state laser a much higher beam quality and thus lesser Focus diameter can be achieved
- the pulsed solid-state laser used for the laser ignition device according to the invention is made of the four main components pump diodes, crystal rod, resonator with output mirror, Q-switch and focusing device built up. Via the radiation of the pump diodes become metastable energy levels stimulated in the laser crystal and the energy stored with it. by virtue of a low spontaneous emission, the laser crystal begins light on the laser wavelength (1064nm) to emit.
- the laser crystal is in an optical Resonator embedded, its goodness with the Q-switch when reaching the desired Power density is increased in a pulse-like manner. This gives you at the Auskoppelapt a short, high laser pulse. It becomes a passive Q-switch used, which on the one hand a high gain, on the other hand short Energy pulses without complex control allows.
- the geometry of the resonator results from the requirement that the pump diodes must be located at the top of the spark plug shaft. To achieve A high quality is the largest possible distance between the laser crystal and the Auskoppelapt necessary. This results in the elongated design, wherein the head area with laser crystal at one end and the Auskoppelapt located at the other end of a tube.
- the pump diodes are thermally stabilized.
- At least two, preferably three different cooling systems for a thermal stabilization of the resonator are beneficial.
- At least one Cooling system offers the temperature-controlled cooling water of the internal combustion engine at. But since the pump diodes at a much lower temperature level as the cooling water temperature must be operated, is the use of thermoelectric cooling elements (Peltier cooling elements) in this Case required. At least one cooling system therefore has at least one Peltier cooling element on. It is envisaged that for cooling the laser crystal and / or the pump diodes of the resonator, a first inner coolant circuit having.
- the heat of the inner circuit is applied via a heat spreader derived at least one Peltier cooling element. It is particularly advantageous if for heat dissipation from the Peltier cooling element, the resonator at least one outer having second coolant circuit. At least one of the cooling systems can also be designed to warm the pump diodes. Especially it is advantageous if at cold start the pump diodes through the Peltier cooling element can be heated to the operating temperature.
- the laser crystal can consist of either ND: YAG (neodymium: YAG) or ND: YVO 4 (neodymium: vanadate).
- ND: YAG is widely used, inexpensive and mechanically strong, but has a much narrower absorption line than ND: YVO 4 .
- the use of ND: YAG laser crystals thus requires a particularly good cooling device.
- a very effective heat removal from the laser crystal is achieved when the Laser crystal of at least one preferably annular first cooling channel is surrounded.
- a plurality of pump diodes concentrically the laser crystal are arranged, preferably at least three, especially preferably at least six pump diodes evenly around the laser crystal are arranged around.
- the pump diodes are advantageously in Series are switched.
- the laser crystal is thus by the pump diodes laterally, that is radial, pumped.
- To increase the pulse energy can also several Rings of pump diodes concentrically one behind the other around the laser crystal be arranged.
- the laser ignition device 1 consists of the main components laser crystal 2, Pump light source 30, passive Q-switch 4, tube 5, output mirror 6 and Focusing device 7 with a focus lens 8, and a cooling device 11.
- a high efficiency can be achieved when the pump light source 30 through Pump diodes 3 is formed.
- the laser crystal 2 is in an optical Resonator 9 embedded, its quality with the passive Q-switch 4 at Reaching the desired power density is increased in pulses. This preserves one at Auskoppelapt 6 a short, strong laser pulse 26th
- Individual pump diodes 3 are connected in series and annular laterally around the Laser crystal 2 arranged.
- the pump diodes 3 must due to greatly reduced lifetime at higher Operating temperature at a relatively low temperature of about 30 ° C operated become. In addition, the wavelength of the pump diodes 3 changes with the temperature. As the neodymium: YAG (ND: YAG) existing rod-shaped laser crystal 2 has a very narrow absorption line, the pump diodes must 3 are thermally stabilized. For this purpose, in the head region 10 of the laser ignition device 1, the cooling device 11 is provided.
- the cooling device 11 includes three different cooling systems A, B, C.
- the first cooling system A has ring-shaped around the heat spreader 28 distributed Peltier cooling elements 12 on.
- the cooling systems B, C with two liquid cooling circuits 13, 14 are provided.
- the coolant of the Cooling circuit 13 flows through the head part 10 substantially in the direction of Axis 1a of the laser ignition device.
- the first cooling circuit 13 has the task of thermally stabilizing the laser crystal 2 and transfer its lost heat to the heat spreader 28.
- the laser crystal 2 is surrounded by at least one first cooling channel 16, which may be formed as an annular channel, as shown in Fig.7. Instead of an annular channel can also have a plurality of first inlet channels 16 around the laser crystal 2 be arranged. About at least one inlet opening 19 a and a Verteilerringraum 19, the coolant to the first cooling channel 16 and on a collecting annulus 20 and outlet openings 20 a discharged again.
- the Heat loss of the laser crystal 2 is at least partially flowing through the annular spaces 19, 20 are transmitted to the flange plate 17 and the connection plate 23, These in turn transfer the heat by heat conduction to the Heat spreader 28.
- the heat spreader 28 may also have axial cooling channels 15, as indicated in Fig. 4 and 6 by dashed lines.
- the cooling medium enters through the access openings 19a in the Verteilerringraum 19, flows through the first cooling channels 15 of the heat spreader 28 and is over the Passage channel 18 passed into the cooling channel 16. Then it flows through the Sammelringraum 20 and outlet openings 20a to an external pump.
- the second cooling circuit 14 has inlet openings 21 in the outer heat exchanger 29, which second cooling channels 24 and on to outlet openings 22 lead.
- the coolant formed for example by water passes via the inlet openings 21 in the second cooling channels 24, flows through the outer heat exchanger 29 and leaves the laser ignition device 1 again in Area of the outlet openings 22.
- About the second cooling channels 24 is thus before all heat from the Peltier cooling elements 12 via the outer heat exchanger 29 dissipated.
- the three cooling systems A, B, C - namely Peltier cooling elements 12, first cooling circuit 13 and second cooling circuit 14 - existing cooling device 11, it is possible to use as the material for the laser crystal 2 the widespread inexpensive and mechanically strong neodymium: YAG and as a pump light source Pump diodes 3 to use.
- the cooling device 11 can the pump diodes 3 are thermally stabilized at about 30 ° C, which is advantageous affects their life.
- the thermal Stabilization can be achieved that the wavelength of the pump diodes 3 always within the narrow absorption line of the laser crystal 2 remains.
- the laser crystal 2 is in the region of the end-side connection plate 23 for the laser wavelength (1064nm) mirrored and antireflective coated at the other end.
- the shape of the laser ignition device 1 results from the requirement that these instead of a spark plug in the spark plug well 31 of a cylinder head 32nd should be mountable and from the boundary condition that the pump diodes 3 in Head region 10 of the laser ignition device 1 must be arranged.
- the Auskoppelspiegel 6 is therefore arranged in the foot region 25 of the laser ignition device 1 near the combustion chamber.
- the focusing device 7 is with a single focus lens 8, which simultaneously forms the window to the combustion chamber and as Plano-spherical lens is formed.
- a material for the focusing lens 8 is suitable For example, sapphire.
- the second cooling circuit 14 can with the existing water cooling of the engine be coupled.
- For the first cooling circuit are higher optical, qualitative and thermal conditions, so here's a separate coolant is required.
- the pump diodes 3 must due to greatly reduced lifetime at higher Operating temperature can be operated at about 30 ° C.
- the heat loss stream is a heat spreader 28, which consists of copper, to the Peltier cooling elements 12 derived, the heat flow to the temperature level of the engine cooling water and over the outer heat exchanger Give 29 to this.
- the wavelength of the pump diodes 3 shifts with the temperature and The absorption band of the laser crystal 2 is extremely narrow, must be a fast and precise temperature control can be provided.
- the temperature on the cold Page should deviate by a maximum of +/- 1.5 ° C from the nominal value. To this to reach the Peltier cooling elements 12 with at least one temperature sensor and a power source operated in a closed loop.
- the laser ignition device 1 can be used entirely in the Spark plug shaft 31 of a cylinder head 32 of an internal combustion engine arranged become.
- the laser ignition device 1 is thus suitable for use in existing conventional cylinder head concepts for spark-ignition internal combustion engines.
- To minimize contamination of the focusing device Keep closes the focusing lens 8 to the combustion chamber 33 toward plan to the cylinder head cover surface 34 on.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lasers (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
Description
- Fig. 1
- eine erfindungsgemäße Laser-Zündeinrichtung in einer Schrägansicht,
- Fig. 2
- den Kopfteil der Laser-Zündeinrichtung im Detail in einer Schrägansicht,
- Fig. 3
- die Laser-Zündeinrichtung in einem Längsschnitt,
- Fig. 4
- den Kopfteil der Laser-Zündeinrichtung in einer geschnittenen Schrägansicht gemäß der Linie IV-IV in Fig. 1,
- Fig. 5
- den Fußteil der Laser-Zündeinrichtung in einer geschnittenen Schrägansicht,
- Fig. 6
- die Laser-Zündeinrichtung schematisch in einem Längsschnitt gemäß der Linie VI-VI in Fig. 7,
- Fig. 7
- die Laser-Zündeinrichtung in einem Schnitt gemäß der Linie VII-VII in Fig. 6 und
- Fig. 8
- einen Zylinderkopf mit einer eingebauten Laser-Zündeinrichtung.
Claims (13)
- Laser-Zündeinrichtung (1) für eine Brennkraftmaschine, mit einem gütegeschalteten, gepumpten Festkörperlaser mit einer gepulsten Pump-Lichtquelle (30), einem in einen Resonator (9) eingebetteten festen Laserkristall (2), einem Güteschalter (4) zur Erhöhung der Leistungsdichte, zumindest einem Auskoppelspiegel (6) und einer Fokussiereinrichtung (7), über welche der Laserstrahl (26) in einem Brennraum fokussierbar ist, dadurch gekennzeichnet, dass Pump-Lichtquelle (30), Resonator (9) samt Laserkristall (2), Güteschalter (4), Auskoppelspiegel (6), Fokussiereinrichtung (7) sowie eine Kühleinrichtung (11) zur Kühlung des Resonators (9) in einem einzigen, in einen Zündkerzenschacht (31) der Brennkraftmaschine einsetzbaren Bauteil integriert sind.
- Zündeinrichtung (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Pump-Lichtquelle (30) durch Pumpdioden (3) gebildet ist.
- Zündeinrichtung (1) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Güteschalter (4) passiv ausgebildet ist.
- Zündeinrichtung (1) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Fokussiereinrichtung (7) eine einzige Fokussierlinse (8) aufweist.
- Zündeinrichtung (1) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Kühleinrichtung (11) mindestens zwei, vorzugsweise drei verschiedene Kühlsysteme (A, B, C) aufweist.
- Zündeinrichtung (1) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass zur Kühlung der Pumpdioden (3) der Resonator (9) zumindest ein Peltier-Kühlelement (12) aufweist.
- Zündeinrichtung (1) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass zur Kühlung des Laserkristalls (2) der Resonator (9) einen inneren ersten Kühlmittelkreislauf (13) aufweist.
- Zündeinrichtung (1) nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass zur Wärmeabfuhr vom Peltier-Kühlelement (12) der Resonator (9) zumindest einen äußeren zweiten Kühlmittelkreislauf (14) aufweist.
- Zündeinrichtung (1) nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der Laserkristall (2) von zumindest einem vorzugsweise ringförmigen ersten Kühlkanal (16) umgeben ist.
- Zündeinrichtung (1) nach einem der Ansprüche 2 bis 9, dadurch gekennzeichnet, dass mehrere Pumpdioden (3) konzentrisch um den Laserkristall (2) angeordnet sind.
- Zündeinrichtung (1) nach Anspruch 10, dadurch gekennzeichnet, dass zumindest drei, vorzugsweise zumindest sechs Pumpdioden (3) gleichmäßig um den Laserkristall herum angeordnet sind.
- Zündeinrichtung (1) nach einem der Ansprüche 1 bis 11 , dadurch gekennzeichnet, dass bei Kaltstart die Pumpdioden (3) durch das Peltier-Kühlelement (12) auf die Betriebstemperatur erwärmbar sind.
- Zündeinrichtung (1) nach einem der Ansprüche 2 bis 12, dadurch gekennzeichnet, dass die Pumpdioden (3) in Serie geschaltet sind.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT03021446T ATE337486T1 (de) | 2003-09-23 | 2003-09-23 | Laser-zündeinrichtung für eine brennkraftmaschine |
| DE50304768T DE50304768D1 (de) | 2003-09-23 | 2003-09-23 | Laser-Zündeinrichtung für eine Brennkraftmaschine |
| EP03021446A EP1519038B1 (de) | 2003-09-23 | 2003-09-23 | Laser-Zündeinrichtung für eine Brennkraftmaschine |
| EP03450285A EP1519039A1 (de) | 2003-09-23 | 2003-12-23 | Gütegeschaltener, gepumpter Festkörperlaser |
| JP2006527218A JP4477636B2 (ja) | 2003-09-23 | 2004-09-23 | 内燃機関用のレーザ点火装置 |
| US10/573,115 US7499477B2 (en) | 2003-09-23 | 2004-09-23 | Internal combustion engine |
| PCT/AT2004/000320 WO2005028856A1 (de) | 2003-09-23 | 2004-09-23 | Brennkraftmaschine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP03021446A EP1519038B1 (de) | 2003-09-23 | 2003-09-23 | Laser-Zündeinrichtung für eine Brennkraftmaschine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1519038A1 true EP1519038A1 (de) | 2005-03-30 |
| EP1519038B1 EP1519038B1 (de) | 2006-08-23 |
Family
ID=34178478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03021446A Expired - Lifetime EP1519038B1 (de) | 2003-09-23 | 2003-09-23 | Laser-Zündeinrichtung für eine Brennkraftmaschine |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1519038B1 (de) |
| AT (1) | ATE337486T1 (de) |
| DE (1) | DE50304768D1 (de) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007143769A3 (de) * | 2006-06-13 | 2008-05-08 | Ctr Carinthian Tech Res Ag | Festkörperlaser mit einem monolithisch aufgebauten resonator |
| WO2009043608A1 (de) * | 2007-09-27 | 2009-04-09 | Robert Bosch Gmbh | Lasereinrichtung für die zündeinrichtung einer brennkraftmaschine |
| DE102009000487A1 (de) | 2009-01-29 | 2010-08-05 | Robert Bosch Gmbh | Laserzündkerze |
| WO2010086287A1 (de) * | 2009-02-02 | 2010-08-05 | Robert Bosch Gmbh | Zündlaser |
| WO2011041805A1 (de) * | 2009-10-07 | 2011-04-14 | Ge Jenbacher Gmbh & Co Ohg | Brennkraftmaschinenzündvorrichtung |
| DE102010031598A1 (de) | 2010-07-21 | 2012-01-26 | Robert Bosch Gmbh | Kühlvorrichtung für eine Laserzündkerze |
| WO2012069228A3 (de) * | 2010-11-25 | 2012-08-23 | Robert Bosch Gmbh | Laserzündkerze für eine brennkraftmaschine und herstellungsverfahren hierfür |
| EP2522842A1 (de) * | 2011-05-13 | 2012-11-14 | GE Jenbacher GmbH & Co. OHG | Zylinderkopf für Brennkraftmaschine |
| DE102011079507A1 (de) | 2011-07-20 | 2013-01-24 | Robert Bosch Gmbh | Laserzündkerze und Kühler für eine Laserzündkerze |
| DE102013201812A1 (de) | 2013-02-05 | 2014-08-07 | Robert Bosch Gmbh | Laserzündsystem |
| WO2014122281A1 (de) | 2013-02-11 | 2014-08-14 | Robert Bosch Gmbh | Laserzündsystem |
| DE102013212065A1 (de) | 2013-06-25 | 2015-01-08 | Robert Bosch Gmbh | Verfahren zur Montage einer Laserzündkerze |
| DE102013213714A1 (de) | 2013-07-12 | 2015-01-15 | Robert Bosch Gmbh | Laserzündkerze und Verfahren zur Herstellung einer Laserzündkerze |
| DE102013221553A1 (de) | 2013-10-23 | 2015-04-23 | Robert Bosch Gmbh | Laserzündsystem |
| CN118040435A (zh) * | 2024-03-04 | 2024-05-14 | 齐鲁中科光物理与工程技术研究院 | 一种用于倍频晶体的快速稳定控温装置 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2339840C2 (ru) * | 2006-12-20 | 2008-11-27 | Федеральное государственное унитарное предприятие "Центральный научно-исследовательский институт машиностроения" (ФГУП ЦНИИмаш) | Способ зажигания топливной смеси в камере сгорания двигателя и устройство для его осуществления |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4191931A (en) * | 1978-02-06 | 1980-03-04 | Sanders Associates, Inc. | Cooled laser q-switch |
| US4416226A (en) * | 1981-06-02 | 1983-11-22 | Nippon Soken, Inc. | Laser ignition apparatus for an internal combustion engine |
| US4434753A (en) * | 1981-05-18 | 1984-03-06 | Nippon Soken, Inc. | Ignition apparatus for internal combustion engine |
| DE3736442A1 (de) * | 1986-11-11 | 1988-05-26 | Freiberg Brennstoffinst | Einrichtung zur kombinierten zuendung und ueberwachung von brennern |
| US5521936A (en) * | 1995-02-01 | 1996-05-28 | Paradigm Lasers, Inc. | Radial laser diode array |
| US6282217B1 (en) * | 1998-09-04 | 2001-08-28 | Kabushiki Kaisha Toshiba | Solid-state laser device |
| EP1278278A1 (de) * | 2001-07-18 | 2003-01-22 | Nanyang Technological University | Diodengepumpter Festkörperlaser |
-
2003
- 2003-09-23 DE DE50304768T patent/DE50304768D1/de not_active Expired - Lifetime
- 2003-09-23 AT AT03021446T patent/ATE337486T1/de not_active IP Right Cessation
- 2003-09-23 EP EP03021446A patent/EP1519038B1/de not_active Expired - Lifetime
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4191931A (en) * | 1978-02-06 | 1980-03-04 | Sanders Associates, Inc. | Cooled laser q-switch |
| US4434753A (en) * | 1981-05-18 | 1984-03-06 | Nippon Soken, Inc. | Ignition apparatus for internal combustion engine |
| US4416226A (en) * | 1981-06-02 | 1983-11-22 | Nippon Soken, Inc. | Laser ignition apparatus for an internal combustion engine |
| DE3736442A1 (de) * | 1986-11-11 | 1988-05-26 | Freiberg Brennstoffinst | Einrichtung zur kombinierten zuendung und ueberwachung von brennern |
| US5521936A (en) * | 1995-02-01 | 1996-05-28 | Paradigm Lasers, Inc. | Radial laser diode array |
| US6282217B1 (en) * | 1998-09-04 | 2001-08-28 | Kabushiki Kaisha Toshiba | Solid-state laser device |
| EP1278278A1 (de) * | 2001-07-18 | 2003-01-22 | Nanyang Technological University | Diodengepumpter Festkörperlaser |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007143769A3 (de) * | 2006-06-13 | 2008-05-08 | Ctr Carinthian Tech Res Ag | Festkörperlaser mit einem monolithisch aufgebauten resonator |
| WO2009043608A1 (de) * | 2007-09-27 | 2009-04-09 | Robert Bosch Gmbh | Lasereinrichtung für die zündeinrichtung einer brennkraftmaschine |
| US8807107B2 (en) | 2007-09-27 | 2014-08-19 | Robert Bosch Gmbh | Laser device for the ignition device of an internal combustion engine |
| DE102009000487A1 (de) | 2009-01-29 | 2010-08-05 | Robert Bosch Gmbh | Laserzündkerze |
| WO2010086287A1 (de) * | 2009-02-02 | 2010-08-05 | Robert Bosch Gmbh | Zündlaser |
| US8833323B2 (en) | 2009-02-02 | 2014-09-16 | Robert Bosch Gmbh | Ignition laser |
| US8365689B2 (en) | 2009-10-07 | 2013-02-05 | Ge Jenbacher Gmbh & Co. Ohg | Internal combustion engine ignition device |
| WO2011041805A1 (de) * | 2009-10-07 | 2011-04-14 | Ge Jenbacher Gmbh & Co Ohg | Brennkraftmaschinenzündvorrichtung |
| DE102010031598A1 (de) | 2010-07-21 | 2012-01-26 | Robert Bosch Gmbh | Kühlvorrichtung für eine Laserzündkerze |
| WO2012022504A1 (de) | 2010-07-21 | 2012-02-23 | Robert Bosch Gmbh | Kühlvorrichtung für eine laserzündkerze |
| WO2012069228A3 (de) * | 2010-11-25 | 2012-08-23 | Robert Bosch Gmbh | Laserzündkerze für eine brennkraftmaschine und herstellungsverfahren hierfür |
| EP2522842A1 (de) * | 2011-05-13 | 2012-11-14 | GE Jenbacher GmbH & Co. OHG | Zylinderkopf für Brennkraftmaschine |
| WO2013010704A1 (de) | 2011-07-20 | 2013-01-24 | Robert Bosch Gmbh | Laserzündkerze und kühler für eine laserzündkerze |
| DE102011079507A1 (de) | 2011-07-20 | 2013-01-24 | Robert Bosch Gmbh | Laserzündkerze und Kühler für eine Laserzündkerze |
| US9638159B2 (en) | 2011-07-20 | 2017-05-02 | Robert Bosch Gmbh | Laser spark plug and cooler for a laser spark plug |
| DE102013201812A1 (de) | 2013-02-05 | 2014-08-07 | Robert Bosch Gmbh | Laserzündsystem |
| DE102013226119A1 (de) | 2013-02-11 | 2014-08-14 | Robert Bosch Gmbh | Laserzündsystem |
| WO2014122281A1 (de) | 2013-02-11 | 2014-08-14 | Robert Bosch Gmbh | Laserzündsystem |
| DE102013212065A1 (de) | 2013-06-25 | 2015-01-08 | Robert Bosch Gmbh | Verfahren zur Montage einer Laserzündkerze |
| DE102013213714A1 (de) | 2013-07-12 | 2015-01-15 | Robert Bosch Gmbh | Laserzündkerze und Verfahren zur Herstellung einer Laserzündkerze |
| DE102013221553A1 (de) | 2013-10-23 | 2015-04-23 | Robert Bosch Gmbh | Laserzündsystem |
| CN118040435A (zh) * | 2024-03-04 | 2024-05-14 | 齐鲁中科光物理与工程技术研究院 | 一种用于倍频晶体的快速稳定控温装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE337486T1 (de) | 2006-09-15 |
| EP1519038B1 (de) | 2006-08-23 |
| DE50304768D1 (de) | 2006-10-05 |
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