EP2072803A2 - Dispositif d'allumage d'un mélange carburant-air dans une chambre de combustion d'un moteur à combustion interne - Google Patents

Dispositif d'allumage d'un mélange carburant-air dans une chambre de combustion d'un moteur à combustion interne Download PDF

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Publication number
EP2072803A2
EP2072803A2 EP08021525A EP08021525A EP2072803A2 EP 2072803 A2 EP2072803 A2 EP 2072803A2 EP 08021525 A EP08021525 A EP 08021525A EP 08021525 A EP08021525 A EP 08021525A EP 2072803 A2 EP2072803 A2 EP 2072803A2
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EP
European Patent Office
Prior art keywords
combustion chamber
laser light
fluid
fuel
window
Prior art date
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Granted
Application number
EP08021525A
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German (de)
English (en)
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EP2072803B1 (fr
EP2072803A3 (fr
Inventor
Friedrich Gruber
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.)
Innio Jenbacher GmbH and Co OG
Original Assignee
GE Jenbacher GmbH and Co OHG
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Publication of EP2072803A3 publication Critical patent/EP2072803A3/fr
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    • 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
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/06—Fuel-injectors combined or associated with other devices the devices being sparking plugs
    • 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

Definitions

  • the invention relates to a device for igniting a fuel / air mixture in the combustion chamber of an internal combustion engine, wherein the combustion chamber has at least one inlet valve and at least one outlet valve, wherein further a laser light generating means for emitting laser light and a combustion chamber window for coupling the laser light are provided in a combustion chamber of the internal combustion engine , Furthermore, the invention relates to a method for operating an internal combustion engine, in particular gas engine, using a laser light generating device which introduces laser light into a combustion chamber of the internal combustion engine, wherein the laser light generating means comprises a combustion chamber window, via which the laser light is introduced into the combustion chamber. Finally, the invention relates to an internal combustion engine with a device of the aforementioned type.
  • Laser ignition is an ignition system under development for internal combustion engine-driven internal combustion engines, which is based on the principle that an intensive laser pulse is concentrated in the combustion chamber of the internal combustion engine to a focal point, wherein the extremely high field strengths of the laser light beam occurring in the focal point or focus the gas is ionized and subsequently heated to plasma temperatures (several 1000 degrees Kelvin).
  • plasma temperatures hundreds of degrees Kelvin.
  • the ignition laser which generates the ignition pulse, via an optical fiber via a pump light source (eg a semiconductor laser) pumped longitudinally until the activation energy reaches a level required for the oscillation and breakdown of the ignition laser pulse.
  • the beam of the pulse laser is introduced into the combustion chamber via suitable optics, which consists of a focusing device and a transition window (combustion chamber window).
  • suitable optics which consists of a focusing device and a transition window (combustion chamber window).
  • the coupling optics of the laser pulse into the combustion chamber of the engine consists of a suitable lens system and the so-called combustion chamber window, which represents the last optical element before the jet entry into the combustion chamber.
  • the advantage of laser ignition over conventional spark ignition is, among other things, that the spark can be placed freely in the depth of the combustion chamber, where optimal conditions of ignition exist.
  • the combustion introduction takes place in the conventional spark ignition in the immediate vicinity of the combustion chamber wall, wherein the flat, the spark limiting electrodes hinder the Flammkem Struktur.
  • the energy of the laser spark can be greatly increased by increasing the power of the laser system, without resulting in increased wear, as it is given in the spark ignition with respect to the electrode wear.
  • Another advantage of laser ignition is that with increasing engine power, the minimum required pulse energy (that is, the energy of the plasma arc that is minimally required to ignite the fuel-air mixture) decreases.
  • the conventional spark ignition systems are increasingly coming up against their system limits in the future planned engine output.
  • gas engines which represent a preferred application in the present case, a continuous use of both engine and ignition device with long maturities must be possible to keep downtimes, for example, to replace ignition devices as short as possible.
  • One of the main problems in the realization and serial implementation of laser ignition is, among other things, the guarantee or maintenance of the optical properties of the combustion chamber window over the running time of the internal combustion engine.
  • high thermo-chemical stresses and the deposition of solid residues from the combustion can lead to turbidity of the surface, whereby both the beam weakened, ie partially absorbed and scattered, resulting in either a significant reduction in the energy of the plasma arc or even to the absence of the plasma arc.
  • Object of the present invention is therefore to provide a device of the type mentioned above and a method of the type mentioned, with which the disadvantages of the prior art are reduced.
  • deposits in the combustion chamber side of the combustion chamber window should be reduced.
  • a device for igniting a fuel / air mixture in the combustion chamber of an internal combustion engine having at least one inlet valve and at least one discharge valve, wherein furthermore a laser light generating device for emitting laser light and a combustion chamber window for coupling the laser light into a combustion chamber of the internal combustion engine are provided characterized by at least one of the or the inlet valve (s) separate fluid supply means with which a fluid at least on areas of the surface of the combustion chamber window or between the combustion chamber window and focal point of the laser light can be flowed.
  • a method for operating an internal combustion engine, in particular gas engine provided using a laser light generating device which introduces laser light into a combustion chamber of the internal combustion engine, wherein the laser light generating device comprises a combustion chamber window, via which the laser light is introduced into the combustion chamber, wherein during operation of the internal combustion engine a separate fluid from the fuel is directed to the combustion chamber window or between the combustion chamber window and focal point of the laser light.
  • a device With a device according to the invention, it is possible to continuously flow a fluid onto the combustion chamber window and indeed to the combustion chamber-side boundary surface of the combustion chamber window or to flow between the focal point and combustion chamber window so that deposits which form as a result of the combustion of the fuel / air mixture, can not deposit on the combustion chamber window.
  • the combustion chamber window is kept free of deposits on the combustion chamber side, and the laser can be operated at lower power, since there is no interference absorption due to deposits on the combustion chamber window.
  • the inventive method makes it possible to flow the fluid to the combustion chamber window (and indeed to the combustion chamber side interface of the combustion chamber window) or the area between the combustion chamber window and focal point of the laser light. It is expediently provided that the fluid does not enter into any or only minimal interactions with the laser light, so that in the preferred case the fluid is a gas, particularly preferably air or an inert gas. As an inert gas in the present case is sufficient if the interaction with the laser light leads to no chemical reaction.
  • Air which can not be regarded as inert gas in the conventional sense due to the high oxygen content, in the present case may well be an inert gas, as Air is usually not reacted with laser light alone, or only in a small, not disturbing extent. Overall, this depends on the laser light side, for example on the light intensities, wavelengths and pulse durations, so that the average person skilled in the art is able to select a suitable fluid.
  • Suitable inert gas would be, for example, CO 2 , nitrogen, noble gas or mixtures thereof. Low light absorption by the fluid can be accepted.
  • the fluid - preferably gas - with a pressure above the boost pressure or, the filling pressure of the Brennraums is, is flowing.
  • the overpressure is at least 1 bar above the boost pressure.
  • the fluid supply device has at least one fluid outlet opening. This makes it possible to direct the flow of the fluid through one or more targeted fluid outlet opening (s) in the desired areas.
  • the fluid supply device has a valve for fluid metering.
  • a valve By means of a valve, the amount of fluid can be optimally dosed.
  • the valve is designed as a check valve, a return flow of gases is prevented from the combustion chamber.
  • the valve is designed as a metering valve, the amount and pressure of the fluid is optimally regulated.
  • the device has an antechamber, which is arranged at least partially between the combustion chamber window and the focal point of the laser light.
  • the region in which the fluid flows between the combustion chamber window and the focal point can be spatially optimally regulated.
  • the gas flow is reduced from the combustion chamber to the combustion chamber window due to the spatial limitation.
  • the antechamber is arranged between the combustion chamber window and the focal point of the laser light, whereby the area which is traversed by gas fluid, is clearly defined. It has been shown that such an antechamber reduces the required amount of fluid, if necessary, the fluid supply during operation can also be temporarily interrupted.
  • the device has a further prechamber, which encloses the first prechamber at least in regions.
  • the second prechamber serves to precede the first prechamber from gas flow shield the combustion chamber even better and reduce turbulent flow.
  • a fluid can be introduced into the second prechamber.
  • the fluid which can be introduced into the second pre-chamber is an air / fuel mixture which preferably has a lower lambda ⁇ (ratio of air to fuel) than the lambda ⁇ in the combustion chamber ,
  • the second pre-chamber area with higher fuel content can be used for pre-ignition, which then initiates the actual ignition of the lean mixture in the combustion chamber.
  • the focal point of the laser light is arranged in the edge region or in the central region of the second antechamber.
  • the proposed solution according to the invention is based in particular on the fact that the combustion chamber window is not directly exposed to the combustion gases, but by a fluid cushion - in the simplest case, an air cushion - is separated from the combustion gases.
  • the laser beam can be passed through an, for example, cylindrical antechamber flushed with fluid (for example air).
  • the focal point of the beam path is in front of or in the crossing area of the antechamber to the main combustion chamber or already directly in the main combustion chamber.
  • the prechamber may be purged with fluids such as (compressed) air or other suitable inert gas during the charge cycling phase of the cylinder.
  • the supply pressure of the purge gas is significantly above the boost pressure or filling pressure of the engine (for example> 1 bar over boost pressure).
  • the combustion chamber window is blown open between the work cycles and cooled, on the other hand the combustion chamber window is protected from the action of the flame or the hot combustion gases by the presentation of an air cushion.
  • the combustion residues can thus no longer or only to a very small extent deposit on the surface of the window.
  • Fig. 1 is given a rough schematic overview of a cylinder 30 of an internal combustion engine having a piston 31 in a known per se.
  • the piston compresses fuel introduced into the combustion chamber 11 of the cylinder 30 via the inlet 36 and the inlet valve 34.
  • a laser light generating device 1 generates an ignitable laser beam which generates a spark at the focal point 4.
  • the laser light generating device 1 is pumped by a pump light source 32 and a light guide 33 until a corresponding laser pulse for igniting the fuel / air mixture is discharged into the combustion chamber 11. After the ignition of the fuel / air mixture, the burned gas is discharged from the combustion chamber 11 via the fuel outlet 37 and the exhaust valve 35.
  • Fig. 2 is a cross section through the front portion of an embodiment of a device sketched where a laser light generating device (laser spark plug) 1 is inserted into a pre-chamber sleeve 2, preferably screwed.
  • the laser light generating device 1 is designed as known per se, so that at this point only briefly the known parts.
  • the resonator 21 fed by a pump light source has (in the Fig. 2 shown below) to a Auskoppelapt 23, via which the laser light 8 (shown in the form of outer boundary rays) is coupled to the focusing device 22 from the resonator 21.
  • the focusing device 22 (indicated here in a simplified manner via the optical axis) can be a lens or a lens system and focuses the laser light 8 onto the focal point 4, which here coincides with the ignition point at which the plasma signal forms.
  • An antechamber sleeve 2 encloses the laser spark plug 1 up to the beam path 8 of the laser light pulse.
  • a separate pre-chamber sleeve 2 is also conceivable to form the cylinder head of the internal combustion engine at the location of the laser light entry as antechamber.
  • the free cross section in the beam path of the laser light 8 is the here in the direction of the combustion chamber 11 narrowing antechamber 5.
  • the prechamber 5 is here so a kind of truncated pyramid, the focal point 4 is just outside the pre-chamber 5.
  • the pre-chamber 5 extends in the present case between Vorschggse 2 and laser light generating device 1 approximately gap-shaped to the fluid supply device 6. It forms such a lateral channel 24.
  • the fluid (eg compressed air) is via a supply hole 6 (in the drawing from the top right side to the bottom left) introduced into the antechamber 5.
  • a valve 7 for example a check valve (shown here) or a clocked solenoid valve in the supply bore, a backflow during the compression and power stroke is prevented.
  • the fluid flow takes place in the exemplary embodiment along the channel 24 or the gap between the laser light generating device 1 and the prechamber sleeve in such a way that a fluid flow between the combustion chamber side interface 3a of the combustion chamber window 3 and the focal point 4 can be flowed.
  • the plasma image is formed, here in the embodiment, this is located outside of the cone-shaped prechamber 5, but in principle the plasma signal could be ignited within the cone, since the prechamber 5 in the front region, especially in the combustion chamber side area - depending on the pressure through the Compression stroke of the piston - filled area with fuel / air mixture.
  • the advantage of positioning the plasma arc outside the pre-chamber 5 in conjunction with the special shaping of the pre-chamber 5 is that high-energy radicals generated by the laser pulse in the plasma by the flow components of the cylinder charge (eg swirl and / or squish flow) of drift away the antechamber 5 and thus can no longer reach the combustion chamber window 3.
  • high-energy radicals generated by the laser pulse in the plasma by the flow components of the cylinder charge (eg swirl and / or squish flow) of drift away the antechamber 5 and thus can no longer reach the combustion chamber window 3.
  • Fig. 3 is a modification of the variant of Fig. 2 shown, wherein the shape of the pre-chamber 5 is rotated by 180 °. Because the components of Fig. 2 to 5 are largely identical, is already based on the Fig. 1 explained features not discussed in detail on Fig. 2 directed.
  • Fig. 3 expands the antechamber 5 from the inside (ie, starting from the combustion chamber window 3 in the direction of the main combustion chamber), thus represents a truncated pyramid in the reverse direction, ie, that the small boundary surface of the truncated pyramid is oriented to the combustion chamber window 3.
  • the focal point 4 and thus also the plasma plasma could be moved further inward, ie into the pre-chamber 5, without any disadvantages for the flame propagation.
  • the advantage of this arrangement is particularly useful in laser concepts where multiple, spatially separated plasma peaks or foci 4 are generated via one and the same coupling optics 22.
  • Fig. 4 An exemplary embodiment with two prechambers 5, 9 is shown.
  • the inner chamber 5 corresponds to the antechamber 5 of the variants of Fig. 2 3. This essentially shields the combustion chamber window 3 or the combustion chamber-side boundary surface 3a of the combustion chamber window 3 from the flame front or the combustion gases, by attaching the fluid rinse to the inner prechamber 5.
  • the outer chamber 9 serves to optimize the mixture ignition and the flame progress, whereby a Vorhunt bin is achieved by defined conditions with respect to the temperature and the flow conditions in this part.
  • the plasma funnel can be placed in an optimal position (inside, at the opening or outside the inner or outer antechamber).
  • FIG. 5 a more elaborate variant is shown.
  • the antechamber 5 again - as in variant of Fig. 4 -
  • a second, outer pre-chamber 9 is provided.
  • the inner pre-chamber 5 is flushed to protect the combustion chamber window 5 with fluid
  • the outer pre-chamber 9 is used to optimize the mixture flame, which is rinsed here in contrast to variant 3 here with fuel or fuel / air mixture 10 in order to achieve a refining of this combustion chamber part.
  • flushing at the outer prechamber 9 does not have to mean that the entire chamber volume is flooded or flushed with fuel, fuel / air mixture or fuel-inert gas mixture, but it may also have a smaller volume of the outer pre-chamber 9 so fill out.
  • Flushed pre-chambers 9 are preferably used in large-volume gas-lean engines, as is introduced by the ideal ignition conditions in these atria 9 and by the intense ignition (Zündfackel), which is ignited after ignition of the pre-chamber volume in the main combustion chamber 11, very lean mixtures with high ignition safety and relatively high energy conversion rates can be burned.
  • Fig. 5 The advantage of the arrangement of Fig. 5 lies in the fact that the fuel / air mixture can be ignited in a nearly stoichiometric mixture at the focal point 4 by means of the plasma spark.
  • only a fraction (eg 10%) of the minimum pulse energy required for mixture ignition is necessary for a stoichiometric mixture.
  • pulse energies of less than 1 mJ which not only enables very cost-effective laser systems, but also prevents the occurrence of a "laser-coating effect".
  • Laser coating effect is called the increased contamination of the combustion chamber side surface of the combustion chamber window by the action of laser light above a certain threshold intensity and below the Freibrennintenstician).
  • Fig. 5 can be provided that the focal point or the plasma signal is ignited in a region of the prechamber, where the fuel-air mixture has a nearly stoichiometric combustion air ratio.
  • the fluid supply via fluid supply means 6 and 25, respectively. These are connected to fluid sources (not shown).
  • the fluid supply device 6 is separate from the intake valves or exhaust valves.
  • the intake valves in the conventional sense, in particular for the fuel, are arranged elsewhere in the combustion chamber.
  • the fuel is conveniently introduced to the focal point 4 or into the combustion chamber 11, but not to the combustion chamber window. 3
  • the laser pulse has an energy of 0.5 to 1.5 mJ.
  • the laser ignition system can be designed for these pulse energies.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
EP08021525.4A 2007-12-19 2008-12-11 Dispositif d'allumage d'un mélange carburant-air dans une chambre de combustion d'un moteur à combustion interne Active EP2072803B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0206207A AT506200B1 (de) 2007-12-19 2007-12-19 Vorrichtung zur zündung eines brennstoff/luftgemischs im brennraum einer brennkraftmaschine

Publications (3)

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EP2072803A2 true EP2072803A2 (fr) 2009-06-24
EP2072803A3 EP2072803A3 (fr) 2011-01-26
EP2072803B1 EP2072803B1 (fr) 2020-04-22

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US (1) US7806094B2 (fr)
EP (1) EP2072803B1 (fr)
CN (1) CN101463791A (fr)
AT (1) AT506200B1 (fr)

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WO2010007066A1 (fr) * 2008-07-15 2010-01-21 Robert Bosch Gmbh Bougie d'allumage laser comprenant un dispositif destiné à agir sur le flux de mélange air-carburant et à améliorer l'inflammation
WO2010057904A1 (fr) * 2008-11-21 2010-05-27 Robert Bosch Gmbh Allumage commandé, induit par laser, pour moteur à combustion interne
WO2011060987A1 (fr) * 2009-11-23 2011-05-26 Robert Bosch Gmbh Bougie pour laser
WO2011041807A3 (fr) * 2009-10-07 2011-06-23 Ge Jenbacher Gmbh & Co Ohg Bougie d'allumage par laser pour moteur à combustion interne
WO2011085853A1 (fr) * 2009-12-21 2011-07-21 Robert Bosch Gmbh Dispositif d'allumage laser
AT508801B1 (de) * 2009-10-07 2011-09-15 Ge Jenbacher Gmbh & Co Ohg Brennkraftmaschinenzündvorrichtung
EP2379859A1 (fr) * 2008-12-16 2011-10-26 Robert Bosch GmbH Bougie d'allumage par laser dans une chambre de précombustion
WO2011147606A1 (fr) * 2010-05-27 2011-12-01 Robert Bosch Gmbh Allumage induit par laser pour un moteur à combustion interne
WO2011147619A1 (fr) * 2010-05-27 2011-12-01 Robert Bosch Gmbh Allumage par étincelles à induction laser pour un moteur à combustion interne
WO2011147605A1 (fr) * 2010-05-27 2011-12-01 Robert Bosch Gmbh Allumage induit par laser pour un moteur à combustion interne
WO2011147623A1 (fr) * 2010-05-27 2011-12-01 Robert Bosch Gmbh Allumage induit par laser pour un moteur à combustion interne
WO2011147607A1 (fr) * 2010-05-27 2011-12-01 Robert Bosch Gmbh Allumage induit par laser pour moteur à combustion interne
WO2011147620A1 (fr) * 2010-05-27 2011-12-01 Robert Bosch Gmbh Allumage par étincelles à induction laser pour un moteur à combustion interne
WO2011147608A1 (fr) * 2010-05-27 2011-12-01 Robert Bosch Gmbh Allumage induit par laser pour un moteur à combustion interne
EP2399021A1 (fr) * 2009-02-18 2011-12-28 Robert Bosch GmbH Bougie d'allumage laser et module de chambre de précombustion
DE102011075559A1 (de) 2011-05-10 2012-11-15 Robert Bosch Gmbh Laserzündkerze
WO2012152467A3 (fr) * 2011-05-10 2013-01-10 Robert Bosch Gmbh Bougie d'allumage laser
WO2013007441A1 (fr) * 2011-07-12 2013-01-17 Robert Bosch Gmbh Module de pré-chambre pour une bougie d'allumage laser et procédé de production associé
WO2013007439A1 (fr) * 2011-07-13 2013-01-17 Robert Bosch Gmbh Bougie d'allumage laser et procédé de nettoyage de cette dernière
WO2013041289A1 (fr) * 2011-09-21 2013-03-28 Robert Bosch Gmbh Module de préchambre pour bougie d'allumage laser
EP2848804A1 (fr) * 2013-09-13 2015-03-18 Siemens Aktiengesellschaft Procédé du test d'éolienne
US9212648B2 (en) 2011-09-06 2015-12-15 Ge Jenbacher Gmbh & Co Og Laser spark plug
JP2016033342A (ja) * 2014-07-31 2016-03-10 株式会社日本自動車部品総合研究所 レーザ点火装置
CN115425510A (zh) * 2022-11-07 2022-12-02 西南科技大学 压缩空气点火的烟火激光器

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US8939120B1 (en) * 2010-03-23 2015-01-27 Utron Kinetics, LLC Laser ignition of high pressure combustible gas mixtures in a press
DE102010027943A1 (de) * 2010-04-20 2011-10-20 Robert Bosch Gmbh Verfahren zum Betreiben einer Laserzündkerze für eine Brennkraftmaschine
US8042510B2 (en) 2010-09-08 2011-10-25 Ford Global Technologies, Llc Efficiency enhancement to a laser ignition system
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JP5892804B2 (ja) * 2012-02-13 2016-03-23 株式会社日本自動車部品総合研究所 レーザ点火装置
JP5880401B2 (ja) * 2012-11-15 2016-03-09 富士ゼロックス株式会社 通信装置及びプログラム
US9617967B2 (en) * 2013-06-28 2017-04-11 Ford Global Technologies, Llc Method and system for laser ignition control
RU2553916C2 (ru) * 2013-10-21 2015-06-20 Общество с ограниченной ответственностью "Спектралазер" Способ лазерного воспламенения топлива в дизельном двигателе, устройство для лазерного воспламенения топлива в дизельном двигателе и воспламенитель
GB2527361A (en) * 2014-06-20 2015-12-23 John Anthony King Fuel delivery and ignition system
JP6457759B2 (ja) * 2014-07-31 2019-01-23 三菱重工エンジン＆ターボチャージャ株式会社 レーザ点火プラグを備えたエンジン
JP6631201B2 (ja) * 2014-12-08 2020-01-15 株式会社デンソー 点火装置並びにこれに用いられる超親水膜の製造方法
US9574541B2 (en) 2015-05-27 2017-02-21 Princeton Optronics Inc. Compact laser ignition device for combustion engine
RU2634300C2 (ru) * 2016-01-29 2017-10-25 Николай Борисович Болотин Устройство лазерного воспламенения топливовоздушной смеси в двигателе внутреннего сгорания
RU2612188C1 (ru) * 2016-01-29 2017-03-02 Николай Борисович Болотин Система зажигания дизельного двигателя и лазерная свеча зажигания
US9932956B2 (en) * 2016-02-24 2018-04-03 Denso International America, Inc. Laser ignition device
FR3061743B1 (fr) * 2017-01-12 2019-08-16 Vianney Rabhi Prechambre d'allumage a clapet
DE102017005478B3 (de) * 2017-06-08 2018-09-27 L'orange Gmbh Kraftstoffinjektor
US11519378B2 (en) * 2020-05-19 2022-12-06 Wisconsin Alumni Research Foundation Internal combustion engine with laser-assisted, compression ignition
CN112855336B (zh) * 2021-03-29 2021-11-05 吉林大学 一种预燃室热射流高能点火系统
US11378042B1 (en) 2021-12-10 2022-07-05 Dan H. Johnson Internal combustion engine ignition device

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US9133813B2 (en) 2008-07-15 2015-09-15 Robert Bosch Gmbh Flow-protection device on a laser spark plug for improving the ignition behavior
WO2010007066A1 (fr) * 2008-07-15 2010-01-21 Robert Bosch Gmbh Bougie d'allumage laser comprenant un dispositif destiné à agir sur le flux de mélange air-carburant et à améliorer l'inflammation
EP2304321A1 (fr) * 2008-07-15 2011-04-06 Robert Bosch GmbH Bougie d'allumage laser comprenant un dispositif destiné à agir sur le flux de mélange air-carburant et à améliorer l'inflammation
US8783221B2 (en) 2008-11-21 2014-07-22 Robert Bosch Gmbh Laser-induced spark ignition for an internal combustion engine
WO2010057904A1 (fr) * 2008-11-21 2010-05-27 Robert Bosch Gmbh Allumage commandé, induit par laser, pour moteur à combustion interne
JP2012509433A (ja) * 2008-11-21 2012-04-19 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング 内燃機関のためのレーザ誘起式の外部点火装置
JP2014043861A (ja) * 2008-11-21 2014-03-13 Robert Bosch Gmbh 内燃機関のためのレーザ誘起式の外部点火装置
EP2379859A1 (fr) * 2008-12-16 2011-10-26 Robert Bosch GmbH Bougie d'allumage par laser dans une chambre de précombustion
EP2399021A1 (fr) * 2009-02-18 2011-12-28 Robert Bosch GmbH Bougie d'allumage laser et module de chambre de précombustion
WO2011041807A3 (fr) * 2009-10-07 2011-06-23 Ge Jenbacher Gmbh & Co Ohg Bougie d'allumage par laser pour moteur à combustion interne
AT508801B1 (de) * 2009-10-07 2011-09-15 Ge Jenbacher Gmbh & Co Ohg Brennkraftmaschinenzündvorrichtung
US8826876B2 (en) 2009-10-07 2014-09-09 Ge Jenbacher Gmbh & Co Ohg Laser spark plug for an internal combustion engine
US8365689B2 (en) 2009-10-07 2013-02-05 Ge Jenbacher Gmbh & Co. Ohg Internal combustion engine ignition device
WO2011060987A1 (fr) * 2009-11-23 2011-05-26 Robert Bosch Gmbh Bougie pour laser
US8844491B2 (en) 2009-11-23 2014-09-30 Robert Bosch Gmbh Laser spark plug
WO2011085853A1 (fr) * 2009-12-21 2011-07-21 Robert Bosch Gmbh Dispositif d'allumage laser
WO2011147605A1 (fr) * 2010-05-27 2011-12-01 Robert Bosch Gmbh Allumage induit par laser pour un moteur à combustion interne
WO2011147623A1 (fr) * 2010-05-27 2011-12-01 Robert Bosch Gmbh Allumage induit par laser pour un moteur à combustion interne
WO2011147606A1 (fr) * 2010-05-27 2011-12-01 Robert Bosch Gmbh Allumage induit par laser pour un moteur à combustion interne
US9284939B2 (en) 2010-05-27 2016-03-15 Robert Bosch Gmbh Laser-induced spark ignition for an internal combustion engine
WO2011147619A1 (fr) * 2010-05-27 2011-12-01 Robert Bosch Gmbh Allumage par étincelles à induction laser pour un moteur à combustion interne
US9316200B2 (en) 2010-05-27 2016-04-19 Robert Bosch Gmbh Laser-induced spark ignition for an internal combustion engine
WO2011147608A1 (fr) * 2010-05-27 2011-12-01 Robert Bosch Gmbh Allumage induit par laser pour un moteur à combustion interne
US9377003B2 (en) 2010-05-27 2016-06-28 Robert Bosch Gmbh Laser-induced spark ignition for an internal combustion engine
US20130139774A1 (en) * 2010-05-27 2013-06-06 Pascal Woerner Laser-induced spark ignition for an internal combustion engine
WO2011147620A1 (fr) * 2010-05-27 2011-12-01 Robert Bosch Gmbh Allumage par étincelles à induction laser pour un moteur à combustion interne
WO2011147607A1 (fr) * 2010-05-27 2011-12-01 Robert Bosch Gmbh Allumage induit par laser pour moteur à combustion interne
DE102011075559A1 (de) 2011-05-10 2012-11-15 Robert Bosch Gmbh Laserzündkerze
WO2012152467A3 (fr) * 2011-05-10 2013-01-10 Robert Bosch Gmbh Bougie d'allumage laser
WO2012152471A1 (fr) 2011-05-10 2012-11-15 Robert Bosch Gmbh Bougie d'allumage laser
WO2013007441A1 (fr) * 2011-07-12 2013-01-17 Robert Bosch Gmbh Module de pré-chambre pour une bougie d'allumage laser et procédé de production associé
WO2013007439A1 (fr) * 2011-07-13 2013-01-17 Robert Bosch Gmbh Bougie d'allumage laser et procédé de nettoyage de cette dernière
US9982651B2 (en) 2011-07-13 2018-05-29 Robert Bosch Gmbh Laser spark plug and cleaning method for same
US9212648B2 (en) 2011-09-06 2015-12-15 Ge Jenbacher Gmbh & Co Og Laser spark plug
WO2013041289A1 (fr) * 2011-09-21 2013-03-28 Robert Bosch Gmbh Module de préchambre pour bougie d'allumage laser
EP2848804A1 (fr) * 2013-09-13 2015-03-18 Siemens Aktiengesellschaft Procédé du test d'éolienne
JP2016033342A (ja) * 2014-07-31 2016-03-10 株式会社日本自動車部品総合研究所 レーザ点火装置
EP3176423A4 (fr) * 2014-07-31 2017-08-02 Denso Corporation Dispositif d'allumage par laser
CN107076100A (zh) * 2014-07-31 2017-08-18 株式会社电装 激光点火装置
CN107076100B (zh) * 2014-07-31 2023-02-10 株式会社电装 激光点火装置
CN115425510A (zh) * 2022-11-07 2022-12-02 西南科技大学 压缩空气点火的烟火激光器

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US7806094B2 (en) 2010-10-05
AT506200B1 (de) 2009-09-15
US20090159031A1 (en) 2009-06-25
CN101463791A (zh) 2009-06-24
EP2072803B1 (fr) 2020-04-22
EP2072803A3 (fr) 2011-01-26

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