DE10144590A1 - Fuel injection valve has integrated or connected laser ignition arrangement with channel in continuous optical contact with split point of optical conductor or other split optical coupling point - Google Patents
Fuel injection valve has integrated or connected laser ignition arrangement with channel in continuous optical contact with split point of optical conductor or other split optical coupling pointInfo
- Publication number
- DE10144590A1 DE10144590A1 DE2001144590 DE10144590A DE10144590A1 DE 10144590 A1 DE10144590 A1 DE 10144590A1 DE 2001144590 DE2001144590 DE 2001144590 DE 10144590 A DE10144590 A DE 10144590A DE 10144590 A1 DE10144590 A1 DE 10144590A1
- Authority
- DE
- Germany
- Prior art keywords
- optical
- point
- ignition
- injection valve
- fuel injection
- 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- Withdrawn
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
- 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
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)
- Fuel-Injection Apparatus (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
Description
Die Erfindung betrifft eine Anordnung für ein Brennstoffeinspritzventil mit integrierter bzw. form- oder kraftschlüssig mit ihm verbundenen Laserzündung zum direkten Einspritzen von Kraftstoff in den Brennraum einer Brennkraftmaschine und zum Zünden des in den Brennraum eingespritzten Kraftstoffs nach der im Oberbegriff des Anspruchs 1 angegebenen Art. The invention relates to an arrangement for a fuel injector with an integrated or molded or non-positively connected laser ignition for direct injection of fuel into the combustion chamber Internal combustion engine and for igniting the fuel injected into the combustion chamber according to the generic term of claim 1 specified Art.
Bei Brennkraftmaschinen mit einer Vielzahl von Öffnungen zur Platzierung von funktionsbedingten Elementen ergeben sich schnell Raumprobleme, so dass entwicklungsseitig versucht wird konventionelle Lösungen mit separaten Zündkerzen durch Brennstoffeinspritzventile mit integrierten Zündsystemen zu ersetzen. In internal combustion engines with a large number of openings for the placement of function-related Space problems quickly arise for elements, so that the development side tries to find conventional ones Replace solutions with separate spark plugs with fuel injectors with integrated ignition systems.
Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine kleinbauende, mechanisch einfache und funktionssichere Anordnung mit möglichst hoher Standzeit zur Brennstoff-Direkt- Einspritzung mit integriertem optischen Zündsystem unter Einsatz einer Anordnung der im Oberbegriff des Anspruchs 1 genannten Art zu schaffen. Based on this prior art, the invention has for its object a Small, mechanically simple and functionally reliable arrangement with the longest possible service life for direct fuel Injection with integrated optical ignition system using an arrangement in the preamble of To create claim 1 type.
Erfindungsgemäß unterscheidet sich die Anordnung der Eingangs genannten Art vorrangig von anderen Technologien dadurch, dass in die Wandung des Injektorgehäuses Kanäle eingebracht sind durch die der Zündlaser mittels optischer Leiter bis in den Brennraum geführt werden kann bzw. dass der Injektor form- oder kraftschlüssig in eine Hülse eingelassen ist, deren Wandung ebenfalls die Kanäle zur Führung des Zündlasers bis in den Brennraum aufweisen. According to the invention, the arrangement of the type mentioned above differs primarily from others Technologies in that channels are introduced into the wall of the injector housing through which the The ignition laser can be guided into the combustion chamber by means of an optical conductor or that the injector is shaped or is non-positively embedded in a sleeve, the wall of which is also the channels for guiding the ignition laser up to have the combustion chamber.
Gelöst wird diese Aufgabe durch die kennzeichnenden Merkmale des Anspruchs 1. Vorteilhafte Weiterbildungen der Erfindung sind durch dir von diesem Anspruch abhängigen Ansprüche gekennzeichnet. This object is achieved by the characterizing features of claim 1. Advantageous Further developments of the invention are characterized by claims dependent on this claim.
In folgendem wird die Erfindung anhand von bevorzugten Ausführungsbeispielen in Verbindung mit drei Zeichnungen beschrieben. In the following, the invention is based on preferred exemplary embodiments in conjunction with described three drawings.
Dabei zeigt: It shows:
Fig. 1 eine vereinfachte Schnittzeichnung in Vorderansicht, wobei der Laser (2) nach optischer Einkopplung durch das Kupplungselement (4) über die in die Gehäusewandung des Brennstoffeinspritzventil (1) integrierten Kanäle (5, 8, 11) bis zur Laseraustrittsstelle (14) geführt wird, um hier endständig direkt fokussiert oder unfokussiert bzw. mittels eines optischen Systems, welches winkelverändernde und gleichzeitig fokussierende Merkmale aufweist, in den Brennraum ausgekoppelt werden und in den Zündpunkten (15, 16, 17, 18) den strahlgeführt abgespritzten Kraftstoff in optimaler Brennraumtiefe zünden. Um eine effiziente Doppelzündung sicherzustellen, kann ein zweiter Zündort durch den Laser (2) bei dessen gleicher energetischer Teilung über den Splittpunkt (6) über den Kanal (21) zur Laseraustrittsstelle (19) geführt werden. Der Laser (20) kann auch - wenn raummäßig möglich - separat über eine zweites Kupplungselement eingeleitet werden. Der Düsenkörper (13) kann in einer bevorzugten Ausführungsform auch mit einem Standard-Zündkerzengewinde versehen werden. Fig. 1 is a simplified sectional drawing in front view, the laser ( 2 ) after optical coupling through the coupling element ( 4 ) via the integrated in the housing wall of the fuel injector ( 1 ) channels ( 5 , 8 , 11 ) to the laser exit point ( 14 ) in order to be directly focused or unfocused at the end or by means of an optical system that has angle-changing and simultaneously focusing features, are coupled out into the combustion chamber and ignite the spray-guided sprayed fuel at the optimum combustion chamber depth at the ignition points ( 15 , 16 , 17 , 18 ) , In order to ensure efficient double ignition, a second ignition location can be guided by the laser ( 2 ) with the same energetic division via the splitting point ( 6 ) via the channel ( 21 ) to the laser exit point ( 19 ). The laser ( 20 ) can also - if possible in terms of space - be introduced separately via a second coupling element. In a preferred embodiment, the nozzle body ( 13 ) can also be provided with a standard spark plug thread.
Fig. 2 eine vereinfachte Schnittzeichnung in Vorderansicht, wobei das Brennstoffeinspritzventil (30) kraft- oder formschlüssig von der Injektorhülse (51) umgeben wird. In dieser Ausführungsform kann z. B. ein standard Brennstoffeinspritzventil eingesetzt werden, wobei die Düsenkörperhülse (38) vorteilhafterweise mit einem Zündkerzen-Standardgewinde versehen ist. Werden die Laseraustrittsstellen (39, 44) mit winkelverändernden und gleichzeitig fokussierenden optischen Elementen versehen, so kann auch ein gemeinsamer Zündort in bestimmter Brennraumtiefe festgelegt werden, wobei der erste höherenergetische Laser-Impuls die Plasmaphase provoziert, während der zweite geringer energetische Laser-Impuls die eigentliche Zündphase einleitet. Fig. 2 is a simplified sectional drawing in front view, the fuel injector ( 30 ) being surrounded by the injector sleeve ( 51 ) in a non-positive or positive manner. In this embodiment, e.g. B. a standard fuel injector can be used, wherein the nozzle body sleeve ( 38 ) is advantageously provided with a spark plug standard thread. If the laser exit points ( 39 , 44 ) are provided with optical elements that change the angle and at the same time focus, a common ignition location can also be determined at a certain combustion chamber depth, the first higher-energy laser pulse provoking the plasma phase, while the second lower-energy laser pulse the actual one Initiates ignition phase.
Fig. 3 eine vereinfachte Schnittzeichnung in Vorderansicht, wobei der Laser (60) auf das Zündblech (61)
trifft, welches metallisch oder auch als integrales Keramikteil ausgeführt sein kann. Es können auch mehrere
Zündbleche zur Anwendung kommen.
Bezugszeichenliste
1 Brennstoffeinspritzventil
2 Laser
3 optische Einkopplung
4 Kupplungselement
5 Kanal
6 Splittpunkt
7 Injektoroberteil
8 Kanal
10 Injektorgehäuse
11 Kanal
13 Düsenkörper
14 Laseraustrittsstelle
15 Zündpunkt
16 Zündpunkt
17 Zündpunkt
18 Zündpunkt
19 Laseraustrittsstelle
20 Laser
21 Kanal
22 Kraftstoffzufuhr
23 Steuerungsanschluss
30 Brennstoffeinspritzventil
21 Laser
32 optische Einkopplung
33 Kupplungselement
34 Kanal
36 Injektorgehäusehülse
37 Düsenkörper
38 Düsenkörperhülse
39 Laseraustrittsstelle
40 Zündpunkt
41 Zündpunkt
42 Zündpunkt
43 Zündpunkt
44 Laseraustrittsstelle
45 Laser
46 Kanal
47 Injektorgehäuse
48 Kupplungselement
49 optische Kopplung
50 Sechskant
51 Injektorhülse
60 Laser
61 Zündblech
Fig. 3 is a simplified sectional drawing in front view, the laser ( 60 ) striking the ignition plate ( 61 ), which can be metallic or as an integral ceramic part. Several ignition plates can also be used. REFERENCE SIGNS LIST 1 fuel injector
2 lasers
3 optical coupling
4 coupling element
5 channel
6 split point
7 upper part of the injector
8 channel
10 injector housings
11 channel
13 nozzle body
14 laser exit point
15 ignition point
16 ignition point
17 ignition point
18 ignition point
19 laser exit point
20 lasers
21 channel
22 Fuel supply
23 Control connection
30 fuel injector
21 lasers
32 optical coupling
33 coupling element
34 channel
36 injector housing sleeve
37 nozzle body
38 nozzle body sleeve
39 Laser exit point
40 ignition point
41 ignition point
42 ignition point
43 ignition point
44 laser exit point
45 lasers
46 channel
47 injector housing
48 coupling element
49 optical coupling
50 hexagon
51 injector sleeve
60 lasers
61 ignition plate
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2001144590 DE10144590A1 (en) | 2001-09-11 | 2001-09-11 | Fuel injection valve has integrated or connected laser ignition arrangement with channel in continuous optical contact with split point of optical conductor or other split optical coupling point |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2001144590 DE10144590A1 (en) | 2001-09-11 | 2001-09-11 | Fuel injection valve has integrated or connected laser ignition arrangement with channel in continuous optical contact with split point of optical conductor or other split optical coupling point |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10144590A1 true DE10144590A1 (en) | 2003-03-27 |
Family
ID=7698546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2001144590 Withdrawn DE10144590A1 (en) | 2001-09-11 | 2001-09-11 | Fuel injection valve has integrated or connected laser ignition arrangement with channel in continuous optical contact with split point of optical conductor or other split optical coupling point |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10144590A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2856742A1 (en) * | 2003-06-24 | 2004-12-31 | Bosch Gmbh Robert | Fuel injection and spark ignition coordination procedure for internal combustion engine, involves defining instant of spark ignition for having fixed distance of fuel injection independent of filling of combustion chamber |
DE102008061784A1 (en) * | 2008-12-11 | 2010-06-17 | Bayerische Motoren Werke Aktiengesellschaft | Method for operating Otto internal-combustion engine, involves injecting fuel into combustion chamber of cylinder directly or indirectly, where combustion mixture is ignited in combustion chamber by ignition system |
-
2001
- 2001-09-11 DE DE2001144590 patent/DE10144590A1/en not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2856742A1 (en) * | 2003-06-24 | 2004-12-31 | Bosch Gmbh Robert | Fuel injection and spark ignition coordination procedure for internal combustion engine, involves defining instant of spark ignition for having fixed distance of fuel injection independent of filling of combustion chamber |
DE102008061784A1 (en) * | 2008-12-11 | 2010-06-17 | Bayerische Motoren Werke Aktiengesellschaft | Method for operating Otto internal-combustion engine, involves injecting fuel into combustion chamber of cylinder directly or indirectly, where combustion mixture is ignited in combustion chamber by ignition system |
DE102008061784B4 (en) * | 2008-12-11 | 2020-10-29 | Bayerische Motoren Werke Aktiengesellschaft | Method for operating an internal combustion engine |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |