EP2399021A1 - Bougie d'allumage laser et module de chambre de précombustion - Google Patents

Bougie d'allumage laser et module de chambre de précombustion

Info

Publication number
EP2399021A1
EP2399021A1 EP10703041A EP10703041A EP2399021A1 EP 2399021 A1 EP2399021 A1 EP 2399021A1 EP 10703041 A EP10703041 A EP 10703041A EP 10703041 A EP10703041 A EP 10703041A EP 2399021 A1 EP2399021 A1 EP 2399021A1
Authority
EP
European Patent Office
Prior art keywords
spark plug
laser spark
chamber module
module
chamber
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Withdrawn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
EP10703041A
Other languages
German (de)
English (en)
Inventor
Werner Herden
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 EP2399021A1 publication Critical patent/EP2399021A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F02B19/00—Engines characterised by precombustion chambers
    • F02B19/12—Engines characterised by precombustion chambers with positive ignition
    • 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
    • F02B19/00—Engines characterised by precombustion chambers
    • F02B19/16—Chamber shapes or constructions not specific to sub-groups F02B19/02 - F02B19/10
    • F02B19/18—Transfer passages between chamber and cylinder
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the invention relates to a laser spark plug, in particular for an internal combustion engine of a motor vehicle.
  • Such a laser spark plug is known for example from DE 10 2006 018 973
  • the known laser spark plug has an integrated prechamber arrangement, in which the prechamber is formed integrally with the housing of the laser spark plug.
  • the disadvantage here always the entire laser spark plug must be replaced together with the integrated pre-chamber, if only one component of the known arrangement no longer works.
  • the service life of the antechamber as a result of deposits and other wear can be lower than the service life of the laser components also integrated into the laser spark plug.
  • a still functioning laser assembly must be exchanged and disposed of together with the already worn integrated pre-chamber arrangement, which is uneconomical in particular because of the - relative to the pre-chamber components - much higher manufacturing costs of the laser arrangement.
  • the inventive design of the laser spark plug allows a providence of a separate pre-chamber module, which can be advantageously connected by virtue of the connecting means according to the invention only in a relatively late stage of production with the laser spark plug.
  • the connecting means are designed such that they permit a detachable connection of the laser spark plug to the prechamber module.
  • the prechamber module can be connected to the laser spark plug and, if necessary, also be separated again from the laser spark plug. In particular, it is thereby possible, when reaching a wear limit of the prechamber module that non-destructive of the
  • the still functioning laser spark plug with its laser arrangement can be advantageously used further and for this purpose, for example, connected via the connecting means according to the invention with a new pre-chamber module.
  • the connecting means are designed such that they allow a screw connection and / or a snap-fit connection of the laser spark plug to the prechamber module, which ensures a particularly simple interchangeability of the prechamber module.
  • Laser spark plug extending, preferably tubular, mounting portion, which is preferably formed integrally with a housing of the laser spark plug.
  • the attachment portion may, for example, an internal thread and / or a
  • the prechamber module can be arranged either within the attachment portion or can be screwed in the manner of a throw over the mounting portion of the laser spark plug.
  • a first prechamber module is e.g. is arranged by means of the internal thread of the fastening portion in the tubular mounting portion, and of which a second pre-chamber module is screwed as a cap onto the external thread of the fastening portion.
  • a second pre-chamber module is screwed as a cap onto the external thread of the fastening portion.
  • an antechamber module e.g. also an optical component such as e.g. a combustion chamber window or a focusing optics are screwed into the tubular mounting portion, provided that it has corresponding, with the connecting means of the laser spark plug cooperating connecting means.
  • an optical component such as e.g. a combustion chamber window or a focusing optics
  • Vorschmodul for a laser spark plug has connecting means, which are formed to cooperate with the connecting means of the laser spark plug. This may in particular be an internal or external thread and / or means for producing a press fit and / or a latching connection.
  • the prechamber module has a material with high thermal conductivity, in particular brass.
  • a composite material which contains, for example, copper and steel.
  • a homogeneous design of the pre-chamber module of one of the aforementioned materials is also possible.
  • the material selection according to the invention for the prechamber module advantageously brings about improved heat dissipation or distribution, so that in particular the combustion chamber side surface temperature of the prechamber module is reduced, whereby the risk of uncontrolled pre-ignition is reduced.
  • pre-chamber module has a, preferably arranged on the outside, driving profile, in particular a hexagonal profile.
  • the entrainment profile can preferably be arranged in a combustion chamber-facing end region of the prechamber module.
  • Prechamber module is provided at least one overflow channel, which allows fluid communication between an inner region and an outer region of the pre-chamber module.
  • the pre-chamber module according to the invention may also have further openings, which allow a fluid exchange between the interior of the pre-chamber module and a combustion chamber surrounding the pre-chamber module of an internal combustion engine.
  • the pre-chamber module according to the invention may advantageously also have an integrated optical component, such as, for example, a combustion chamber window designed as a sacrificial window. Because of the simple interchangeability of the pre-chamber module, a "spent" sacrificial window for the laser spark plug can thus also be changed easily, in particular without having to exchange the components permanently integrated in the laser spark plug combustion chamber window.
  • At least one optical component in particular a combustion chamber window, can be arranged in the region of the connecting means between the prechamber module and the end region of the laser spark plug facing the combustion chamber and can be fixed by means of the prechamber module with respect to the laser spark plug.
  • Case serves the invention replaceable pre-chamber module at the same time as a mounting means for holding the optical component.
  • sealing means and suitable enclosures for receiving the optical component in the region of the connecting means may be provided in this variant of the invention, for example
  • FIG. 1 shows a partial cross section of a first embodiment of the laser spark plug according to the invention with an inventive
  • Figure 2 shows another embodiment of an inventive
  • FIG. 3 shows a further embodiment of the invention
  • FIG. 4 a shows a partial cross section of a further embodiment of the prechamber module according to the invention
  • FIG. 4b shows a plan view of the pre-chamber module according to FIG. 4a
  • FIG. 5 shows a partial cross-section of a further embodiment of the laser spark plug with prechamber module according to the invention
  • FIG. 6 shows another embodiment of the invention, in which the
  • Vorschschmodul serves simultaneously for fixing an optical component in the beam path of the laser spark plug.
  • FIG. 1 shows a partial cross-section of a laser spark plug 100 according to the invention, of which substantially only its end region 100a facing the combustion chamber is depicted.
  • the laser spark plug 100 is screwed in a conventional manner in a cylinder head of an internal combustion engine.
  • the laser spark plug 100 has a laser device, not shown, which provides high-energy laser pulses 20, which are focused by a focusing optics 105a on a ZO ignition and coupled by a focusing optics 105a optically downstream combustion chamber window 105b from the laser spark plug 100.
  • the laser spark plug 100 has an antechamber module 200 shown in FIG. 1.
  • the prechamber module 200 unlike conventional laser spark plugs having a prechamber arrangement, is designed as a separate component and can be mounted thereon
  • connection between the laser spark plug 100 and the pre-chamber module 200 is detachably formed, which is achieved according to the invention by means of corresponding connection means 110.
  • the connecting means 110 of the laser spark plug 100 are designed such that they realize a screw connection.
  • the connecting means 1 10 a substantially coaxial with the longitudinal axis L of the laser spark plug 100 extending, preferably tubular, mounting portion 11 1, which is preferably integrally formed with the remaining housing 101 of the laser spark plug 100.
  • the pre-chamber module 200 has a connecting means 1 10 of the laser spark plug 100 complementary connecting means, in the present case
  • pre-chamber module 200 for example, as part of a
  • the invention is particularly suitable for use in stationary
  • the simple replacement of the prechamber module 200 enables the laser spark plug 100 to be flexibly adapted to different operating conditions.
  • an antechamber module 200 optimized for this purpose can be selected and connected to the laser spark plug 100.
  • the pre-chamber modules 200 may differ, for example, with respect to their geometry and / or the geometry and number of their overflow channels 230, whereby the propagation of Zündfackeln from the antechamber 201 a in the combustion chamber 201 b can be adjusted. In this way, an optimal adaptation of the laser spark plug 100 and the pre-chamber module 200 is given to the fuel or gas used.
  • the pre-chamber module 200 is screwed with its external thread in the internal thread of the mounting portion 1 11, so that there is a releasable positive connection.
  • sealing means 1 12 are provided for sealing the resulting prechamber 201 a.
  • FIG. 2 shows a further embodiment of the laser spark plug 100 according to the invention, in which the prechamber module 200 according to the invention has a composite material made of steel and copper.
  • essential parts 202 of the prechamber module 200 are made of one
  • FIG. 3 shows a further embodiment of the laser spark plug 100 according to the invention, in which the prechamber module 200 is connected to the laser spark plug 100 via a detachable press fit 113.
  • the detachable press fit 1 13 can be realized, for example, that for the housing 101 of the laser spark plug 100 and for the pre-chamber module 200 different
  • the antechamber module 200 can also have an integrated optical component 240, which in the present case is indicated in FIG. 3 by the dashed rectangle and, for example, as an additional one
  • Combustion window is formed.
  • the ignition location ZO (FIG. 1) in a region in which only small flows prevail in order to enable reliable laser ignition even with lean mixtures.
  • the ignition location ZO in such a configuration with relatively low laser energy can be successfully ignited, so that effort and costs are reduced in the laser device.
  • FIG. 4 a shows a cross section of a further embodiment of the antechamber module 200 according to the invention, which has an external thread 210 for screwing into the laser spark plug 100 according to the invention.
  • an external thread 210 for screwing into the laser spark plug 100 according to the invention.
  • the hexagonal profile 220 can be seen particularly well from the plan view according to FIG. 4b.
  • FIG. 5 shows a further variant of the laser spark plug 100 according to the invention, in which the pre-chamber module 200 is designed as a cap and, accordingly, is provided on a laser spark plug 100
  • FIG. 6 shows a further variant of the invention, in which between the
  • an optical component 240 in this case a combustion chamber window
  • the prechamber module 200 serves for mechanically fixing the combustion chamber window 240 in the beam path of the laser spark plug 100.
  • sealing means 240a, 240b for example sealing rings, can be provided between the combustion chamber window 240 and the components 100, 200.
  • the connecting means 1 10 as a screw connection can by the depth of insertion of the pre-chamber module 200 into the laser spark plug 100, the available pre-chamber volume in certain limits are set, as well as the location of the ignition ZO relative to the pre-chamber module 200th
  • the laser spark plug 100 according to the invention is configured in a further particularly advantageous embodiment such that the ignition location
  • Combustion chamber 201 b is driven out.
  • the ignition ZO is selected so that no strong currents or turbulence occur in its area, so that a forming during the ignition flame core - ideally in spherical form - undisturbed can develop, which also very lean mixtures such they are used in large gas engines can be reliably ignited. At the same time can be ignited in this case with lower laser powers, so that cost and cost of the laser ignition can be further reduced.
  • a preferred ignition ZO lies in the region of the longitudinal axis of the laser spark plug
  • the flow conditions in the region of the ignition location ZO can advantageously be influenced by a corresponding arrangement and number of overflow channels 230.

Landscapes

  • 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)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

L'invention concerne une bougie d'allumage laser (100) notamment destinée à un moteur à combustion interne d'un véhicule. Selon l'invention, une partie terminale (100a) de la bougie d'allumage laser (100) orientée vers la chambre de combustion, comporte des éléments de fixation (110) permettant une fixation de la bougie d'allumage laser (100) à un module de chambre de précombustion (200).
EP10703041A 2009-02-18 2010-02-01 Bougie d'allumage laser et module de chambre de précombustion Withdrawn EP2399021A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009000956A DE102009000956A1 (de) 2009-02-18 2009-02-18 Laserzündkerze und Vorkammermodul hierfür
PCT/EP2010/051164 WO2010094552A1 (fr) 2009-02-18 2010-02-01 Bougie d'allumage laser et module de chambre de précombustion

Publications (1)

Publication Number Publication Date
EP2399021A1 true EP2399021A1 (fr) 2011-12-28

Family

ID=42111192

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10703041A Withdrawn EP2399021A1 (fr) 2009-02-18 2010-02-01 Bougie d'allumage laser et module de chambre de précombustion

Country Status (5)

Country Link
US (1) US9010292B2 (fr)
EP (1) EP2399021A1 (fr)
JP (1) JP5409815B2 (fr)
DE (1) DE102009000956A1 (fr)
WO (1) WO2010094552A1 (fr)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009026794A1 (de) 2009-06-05 2010-12-09 Robert Bosch Gmbh Laserzündeinrichtung
JP5561957B2 (ja) * 2009-05-11 2014-07-30 株式会社日本自動車部品総合研究所 副燃焼室式点火装置
DE102010029398A1 (de) * 2010-05-27 2011-12-01 Robert Bosch Gmbh Laserinduzierte Fremdzündung für eine Brennkraftmaschine
DE112011103649T5 (de) * 2010-11-01 2013-08-22 Mahle Powertrain, Llc Vorkammerverbrennungssystem mit turbulentem Zündstrahl für Ottomotoren
US9172217B2 (en) 2010-11-23 2015-10-27 Woodward, Inc. Pre-chamber spark plug with tubular electrode and method of manufacturing same
US9476347B2 (en) 2010-11-23 2016-10-25 Woodward, Inc. Controlled spark ignited flame kernel flow in fuel-fed prechambers
US8584648B2 (en) 2010-11-23 2013-11-19 Woodward, Inc. Controlled spark ignited flame kernel flow
US8912716B2 (en) * 2011-03-21 2014-12-16 Denso International America, Inc. Copper core combustion cup for pre-chamber spark plug
DE102011075385A1 (de) * 2011-05-06 2012-11-08 Robert Bosch Gmbh Laserzündkerze und Betriebsverfahren hierfür
DE102011075559A1 (de) * 2011-05-10 2012-11-15 Robert Bosch Gmbh Laserzündkerze
DE102011083143A1 (de) * 2011-09-21 2013-03-21 Robert Bosch Gmbh Vorkammermodul für eine Laserzündkerze
US9856848B2 (en) 2013-01-08 2018-01-02 Woodward, Inc. Quiescent chamber hot gas igniter
US9200560B2 (en) * 2013-01-11 2015-12-01 Caterpillar Inc. Gaseous common rail fuel system and high compression ratio engine using same
US9765682B2 (en) 2013-06-10 2017-09-19 Woodward, Inc. Multi-chamber igniter
US8839762B1 (en) 2013-06-10 2014-09-23 Woodward, Inc. Multi-chamber igniter
JP2015117582A (ja) 2013-12-16 2015-06-25 三菱重工業株式会社 ガスエンジン、およびガスエンジンの組立方法
JP6478509B2 (ja) * 2014-07-31 2019-03-06 株式会社Ｓｏｋｅｎ レーザ点火装置
US10584639B2 (en) 2014-08-18 2020-03-10 Woodward, Inc. Torch igniter
JP6261481B2 (ja) * 2014-09-19 2018-01-17 日本特殊陶業株式会社 点火プラグ
US9653886B2 (en) 2015-03-20 2017-05-16 Woodward, Inc. Cap shielded ignition system
CN107636275B (zh) 2015-03-20 2019-12-31 伍德沃德有限公司 点燃内燃发动机中的空气燃料混合物的系统和方法
US10066580B2 (en) * 2015-10-15 2018-09-04 The Regents Of The University Of Michigan Lean burn internal combustion engine
US9890689B2 (en) 2015-10-29 2018-02-13 Woodward, Inc. Gaseous fuel combustion
US9932956B2 (en) * 2016-02-24 2018-04-03 Denso International America, Inc. Laser ignition device
US10662865B2 (en) * 2016-08-31 2020-05-26 Caterpillar Inc. Method of remanufacturing a prechamber assembly
JP6824801B2 (ja) * 2017-03-31 2021-02-03 本田技研工業株式会社 内燃機関の副室構造
JP6804373B2 (ja) * 2017-03-31 2020-12-23 大阪瓦斯株式会社 エンジン
JP6919558B2 (ja) * 2017-12-27 2021-08-18 トヨタ自動車株式会社 内燃機関
JP6954944B2 (ja) * 2019-03-15 2021-10-27 日本特殊陶業株式会社 点火プラグ
US11421601B2 (en) 2019-03-28 2022-08-23 Woodward, Inc. Second stage combustion for igniter
JP7257236B2 (ja) * 2019-04-22 2023-04-13 三菱重工エンジン＆ターボチャージャ株式会社 副室式エンジン
DE102019122527A1 (de) * 2019-08-21 2021-02-25 Bayerische Motoren Werke Aktiengesellschaft Vorkammerzündsystem für eine fremd gezündete Hubkolben-Brennkraftmaschine
DE102019122529A1 (de) * 2019-08-21 2021-02-25 Bayerische Motoren Werke Aktiengesellschaft Vorkammerzündsystem für eine fremd gezündete Hubkolben-Brennkraftmaschine
US11415041B2 (en) 2019-09-16 2022-08-16 Woodward, Inc. Flame triggered and controlled volumetric ignition
US11408329B2 (en) 2019-12-19 2022-08-09 Board Of Trustees Of Michigan State University Engine turbulent jet ignition system
DE102020103863B4 (de) * 2020-02-14 2023-04-27 Bayerische Motoren Werke Aktiengesellschaft Fremd gezündete Hubkolben-Brennkraftmaschine mit einem Vorkammerzündsystem
CN112377309B (zh) * 2020-11-13 2022-09-13 四川泛华航空仪表电器有限公司 一种可修复的航空发动机点火电嘴装置
US20220220921A1 (en) * 2021-01-11 2022-07-14 Aramco Services Company Passive prechamber lean burn combustion system
EP4288648A1 (fr) * 2021-02-02 2023-12-13 Innio Jenbacher GmbH & Co OG Préchambre et procédé de production d'une préchambre
US11909178B2 (en) 2021-03-04 2024-02-20 Federal-Mogul Ignition Gmbh Prechamber spark plug with thermally enhanced prechamber cap

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2072803A2 (fr) * 2007-12-19 2009-06-24 GE Jenbacher GmbH & Co OHG Dispositif d'allumage d'un mélange carburant-air dans une chambre de combustion d'un moteur à combustion interne

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2057390A (en) * 1933-05-12 1936-10-13 Metailler Rene Louis Protecting socket for spark plugs
US2026822A (en) * 1934-05-05 1936-01-07 Close Isaac Earl Spark plug
US3861371A (en) * 1973-12-10 1975-01-21 Joseph Gamell Ind Inc Ignition system for engine
JPS551401A (en) * 1978-02-24 1980-01-08 Kohei Ichikawa Semiconductor laser plug
JPS5588074U (fr) * 1978-12-14 1980-06-18
JPS59826B2 (ja) 1978-12-26 1984-01-09 株式会社リコー 静電印刷用導電性トナ−
JPS55102075U (fr) * 1979-01-10 1980-07-16
JPS55102075A (en) 1979-01-30 1980-08-04 Toshiba Corp Data processor
DE3025926A1 (de) 1980-07-09 1982-02-04 Robert Bosch Gmbh, 7000 Stuttgart Fremdgezuendete brennkraftmaschine mit wenigstens einem hauptbrennraum und einer diesem zugeordneten zuendkammer
US4434753A (en) * 1981-05-18 1984-03-06 Nippon Soken, Inc. Ignition apparatus for internal combustion engine
JPS57200672A (en) * 1981-06-02 1982-12-08 Nippon Soken Inc Laser igniting apparatus for internal-combustion engine
US4852529A (en) * 1986-03-07 1989-08-01 Bennett Automotive Technology Pty. Ltd. Laser energy ignition system
DE3727526A1 (de) * 1987-08-18 1989-03-02 Bosch Gmbh Robert Verfahren zum herstellen einer zuendkerze fuer brennkraftmaschinen
JPH089964B2 (ja) 1989-12-01 1996-01-31 株式会社リケン 内燃機関の動弁機構用バルブリフタ
US5756924A (en) * 1995-09-28 1998-05-26 The Regents Of The University Of California Multiple laser pulse ignition method and apparatus
US5983871A (en) * 1997-11-10 1999-11-16 Gordon; Eugene Ignition system for an internal combustion engine
JP2000133411A (ja) * 1998-10-26 2000-05-12 Ngk Spark Plug Co Ltd コイル一体型点火プラグ
FR2846042B1 (fr) * 2002-10-18 2005-02-04 Peugeot Citroen Automobiles Sa Dispositif d'allumage a prechambre realisee dans un materiau a conductivite thermique elevee, pour un moteur a combustion interne, et allumeur a prechambre
EP1519039A1 (fr) * 2003-09-23 2005-03-30 AVL List GmbH Laser solide déclenché à pompage optique
FR2873763B1 (fr) * 2004-07-29 2009-06-12 Peugeot Citroen Automobiles Sa Dispositif d'allumage pour moteur a combustion interne et moteur comportant un tel dispositif
JP4425741B2 (ja) * 2004-08-18 2010-03-03 日本特殊陶業株式会社 スパークプラグおよびそれを備えた内燃機関
US7104246B1 (en) * 2005-04-07 2006-09-12 Smart Plug, Inc. Spark ignition modifier module and method
JP2006329116A (ja) 2005-05-27 2006-12-07 Nissan Motor Co Ltd 燃料改質エンジン
DE102005056520A1 (de) * 2005-11-28 2007-05-31 Robert Bosch Gmbh Brennkraftmaschine sowie Verfahren zum Betreiben einer Brennkraftmaschine mittels Laserzündeinrichtung
WO2007092972A1 (fr) * 2006-02-17 2007-08-23 Ge Jenbacher Gmbh & Co Ohg Bougie d'allumage
DE102006018973A1 (de) 2006-04-25 2007-10-31 Kuhnert-Latsch-GbR (vertretungsberechtigter Gesellschafter Herr Dr.-Ing. Reinhard Latsch, 76530 Baden-Baden) Laserzündung in einer Vorkammer
DE102007015036B4 (de) 2007-03-29 2008-11-20 Multitorch Gmbh Laserzündung für Gasgemische
US7770552B2 (en) * 2007-10-31 2010-08-10 Caterpillar Inc. Laser igniter having integral pre-combustion chamber
US20090159033A1 (en) * 2007-12-05 2009-06-25 Steigleman Jr Robert Lee Sparkless ignition plug for the internal combustion engine
DE102009000958A1 (de) * 2009-02-18 2010-08-19 Robert Bosch Gmbh Laserzündkerze

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2072803A2 (fr) * 2007-12-19 2009-06-24 GE Jenbacher GmbH & Co OHG Dispositif d'allumage d'un mélange carburant-air dans une chambre de combustion d'un moteur à combustion interne

Also Published As

Publication number Publication date
JP5409815B2 (ja) 2014-02-05
US9010292B2 (en) 2015-04-21
WO2010094552A1 (fr) 2010-08-26
DE102009000956A1 (de) 2010-08-19
US20110308489A1 (en) 2011-12-22
JP2012518120A (ja) 2012-08-09

Similar Documents

Publication Publication Date Title
EP2399021A1 (fr) Bougie d'allumage laser et module de chambre de précombustion
WO2010094551A1 (fr) Bougie d'allumage laser
AT505766B1 (de) Vorrichtung zum einkoppeln von laserlicht in einen brennraum einer brennkraftmaschine
AT508983B1 (de) Laserzündkerze für brennkraftmaschine
DE102009002167A1 (de) Laserzündkerze und Vorkammermodul hierfür
EP2325477B1 (fr) Bougie d'allumage au laser
DE102008062572A1 (de) Zündkerze
EP2577043B1 (fr) Allumage induit par laser pour un moteur a combustion interne
DE102008062574A1 (de) Zündkerze
WO2010007066A1 (fr) Bougie d'allumage laser comprenant un dispositif destiné à agir sur le flux de mélange air-carburant et à améliorer l'inflammation
DE102009055038A1 (de) Laserzündeinrichtung
EP2504564A1 (fr) Bougie pour laser
DE102010029398A1 (de) Laserinduzierte Fremdzündung für eine Brennkraftmaschine
DE102010029385A1 (de) Laserinduzierte Fremdzündung für eine Brennkraftmaschine
DE102010031598A1 (de) Kühlvorrichtung für eine Laserzündkerze
DE102010029347A1 (de) Laserinduzierte Fremdzündung für eine Brennkraftmaschine
WO2013010704A1 (fr) Bougie au laser et refroidisseur pour une bougie au laser
DE102011075385A1 (de) Laserzündkerze und Betriebsverfahren hierfür
WO2013007441A1 (fr) Module de pré-chambre pour une bougie d'allumage laser et procédé de production associé
DE102013022497B3 (de) Vorkammerzündkerze mit Drucksensor für eine mit Gas betriebene Brennkraftmaschine
DE102010029402A1 (de) Laserinduzierte Fremdzündung für eine Brennkraftmaschine
DE102010029412A1 (de) Laserinduzierte Fremdzündung für eine Brennkraftmaschine
DE102010029353A1 (de) Laserinduzierte Fremdzündung für eine Brennkraftmaschine
DE102010029415A1 (de) Laserinduzierte Fremdzündung für eine Brennkraftmaschine
DE102010029351A1 (de) Laserinduzierte Fremdzündung für eine Brennkraftmaschine

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20110919

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20180307

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: F02P 13/00 20060101ALN20190604BHEP

Ipc: F02P 23/04 20060101AFI20190604BHEP

Ipc: F02B 19/12 20060101ALI20190604BHEP

Ipc: F02B 19/18 20060101ALI20190604BHEP

RIC1 Information provided on ipc code assigned before grant

Ipc: F02B 19/12 20060101ALI20190617BHEP

Ipc: F02P 13/00 20060101ALN20190617BHEP

Ipc: F02B 19/18 20060101ALI20190617BHEP

Ipc: F02P 23/04 20060101AFI20190617BHEP

INTG Intention to grant announced

Effective date: 20190704

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ROBERT BOSCH GMBH

18D Application deemed to be withdrawn

Effective date: 20191115