DE102007062183A1 - Fuel injection valve for fuel injection system in internal-combustion engine, has groove-shaped flow channel formed downstream to outlet in valve seat body, where channel opens to disk-shaped nozzle and extends downstream to openings - Google Patents
Fuel injection valve for fuel injection system in internal-combustion engine, has groove-shaped flow channel formed downstream to outlet in valve seat body, where channel opens to disk-shaped nozzle and extends downstream to openings Download PDFInfo
- Publication number
- DE102007062183A1 DE102007062183A1 DE200710062183 DE102007062183A DE102007062183A1 DE 102007062183 A1 DE102007062183 A1 DE 102007062183A1 DE 200710062183 DE200710062183 DE 200710062183 DE 102007062183 A DE102007062183 A DE 102007062183A DE 102007062183 A1 DE102007062183 A1 DE 102007062183A1
- Authority
- DE
- Germany
- Prior art keywords
- fuel injection
- flow channel
- nozzle
- valve
- valve seat
- 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- Withdrawn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
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1853—Orifice plates
-
- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
- F02M61/1813—Discharge orifices having different orientations with respect to valve member direction of movement, e.g. orientations being such that fuel jets emerging from discharge orifices collide with each other
-
- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
- F02M61/184—Discharge orifices having non circular sections
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
- F02M2200/8069—Fuel injection apparatus manufacture, repair or assembly involving removal of material from the fuel apparatus, e.g. by punching, hydro-erosion or mechanical operation
-
- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/188—Spherical or partly spherical shaped valve member ends
Abstract
Description
Stand der TechnikState of the art
Die Erfindung geht aus von einem Brennstoffeinspritzventil nach der Gattung des Hauptanspruchs.The The invention is based on a fuel injection valve after Genus of the main claim.
Aus
der
Aus
der
Bekannt
ist zudem noch ein Brennstoffeinspritzventil zum direkten Einspritzen
von Brennstoff in einen Brennraum einer Brennkraftmaschine aus der
Vorteile der ErfindungAdvantages of the invention
Das erfindungsgemäße Brennstoffeinspritzventil mit den kennzeichnenden Merkmalen des Anspruchs 1 hat den Vorteil, dass auf einfache Art und Weise eine gleichmäßige Feinstzerstäubung des Brennstoffs erreicht wird, wobei eine besonders hohe Aufbereitungsqualität und Zerstäubungsgüte mit sehr kleinen Fluidtröpfchen erzielt wird. In idealer Weise besitzt die scheibenförmige Düse am stromabwärtigen Ende des Brennstoffeinspritzventils eine Vielzahl von sehr kleinen Abspritzöffnungen, die schlitzförmig gezielt so ausgeführt sind, dass aus der Düse eine Vielzahl von räumlich versetzten Fächerstrahlen austreten, die Lamellenpakete bilden, wobei sich die einzelnen Flüssigkeitslamellen divergent zueinander bewegen und eine Lufteinsaugung zwischen die Fächerstrahlen ermöglichen. Auf diese Weise sind Brennstoffsprays mit extrem kleinen Brennstofftröpfchen mit einem Sauter Mean Diameter (SMD) von ca. 20 μm abspritzbar. Insofern kann sehr wirkungsvoll die HC-Emission der Brennkraftmaschine deutlich reduziert werden.The inventive fuel injection valve with The characterizing features of claim 1 has the advantage that in a simple way a uniform atomizing of the fuel is achieved, with a particularly high quality of treatment and atomization quality with very small fluid droplets is achieved. Ideally has the disc-shaped Nozzle at the downstream end of the fuel injection valve a variety of very small spray holes, which are slit-shaped are designed so that from the nozzle a variety emerge from spatially offset fan beams, form the disk packs, with each liquid lamellae Divergent move to each other and a Lufteinsaugung between the Enable fan beams. In this way are fuel sprays with extremely small fuel droplets with a Sauter Mean Diameter (SMD) of approx. 20 μm can be sprayed off. insofar can very effectively the HC emission of the engine significantly be reduced.
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen des im Anspruch 1 angegebenen Brennstoffeinspritzventils möglich.By the measures listed in the dependent claims are advantageous developments and improvements of the claim 1 specified fuel injector possible.
In idealer Weise handelt es sich bei der Multi-Fächerstrahl-Düse um eine Scheibe, die einlagig ausgeführt ist und richtungsparallele schlitzförmige Abspritzöffnungen aufweist. Stromabwärts der Austrittsöffnung ist im Ventilsitzkörper wenigstens ein zur scheibenförmigen Düse offener nutartiger Strömungskanal derart eingebracht, dass die stromabwärts folgenden Abspritzöffnungen der Multi-Fächerstrahl-Düse unmittelbar versorgt werden. Der wenigstens eine Strömungskanal hat am Übergang von der Austrittsöffnung die größte Kanaltiefe, wobei die Kanaltiefe zum Kanalende nach außen hin kontinuierlich zu Null abnimmt. Der Strömungskanal besitzt herstellungs- und funktionsbedingt ein gewölbtes Kanaldach.In Ideally, it is the multi-fan jet nozzle around a disc, which is single-layered and direction parallel has slot-shaped spray openings. downstream the outlet opening is at least in the valve seat body an open to the disc-shaped nozzle groove-like Flow channel introduced in such a way that the downstream following ejection openings of the multi-fan jet nozzle be supplied directly. The at least one flow channel has the largest at the transition from the outlet opening Channel depth, with the channel depth to the channel end to the outside continuously decreases to zero. The flow channel owns manufacturing and functionally a vaulted Channel roof.
Die schlitzförmigen Abspritzöffnungen verlaufen weitgehend im rechten Winkel zum Strömungskanal und haben in idealer Weise eine größere Länge als die Breite des Strömungskanal, so dass wirkungsvoll ein Auffächern des Brennstoffs und somit jeweils ein gewünschter Fächerstrahl erzielt wird.The Slit-shaped spray openings are largely at right angles to the flow channel and have in ideal Way longer than the width the flow channel, so that effectively fanning of the fuel and thus each a desired fan beam is achieved.
Das Design des erfindungsgemäßen Ventilsitzkörpers in Verbindung mit einer flachen Multi-Fächerstrahl-Düse bietet die nötigen geometrischen Freiheitsgrade zur variantenabhängigen Richtungs- und Auffächerungs-Steuerung der einzelnen Fächerstrahlen. Mit den vorhandenen Geometrieparametern lässt sich die Strahlsteuerung sehr gut beherrschen.The Design of the valve seat body according to the invention in conjunction with a flat multi-fan jet nozzle offers the necessary geometric degrees of freedom for variant-dependent Directional and fan-out control of individual fan beams. With the existing geometry parameters, the Control jet control very well.
Zeichnungdrawing
Ausführungsbeispiele
der Erfindung sind in der Zeichnung vereinfacht dargestellt und
in der nachfolgenden Beschreibung näher erläutert.
Es zeigen
Beschreibung der AusführungsbeispieleDescription of the embodiments
In
der
Die
Betätigung des Brennstoffeinspritzventils erfolgt in bekannter
Weise, beispielsweise elektromagnetisch. Eine Betätigung
des Brennstoffeinspritzventils mit einem piezoelektrischen oder
magnetostriktiven Aktor ist jedoch ebenso denkbar. Zur axialen Bewegung
der Ventilnadel
In
dem stromabwärts liegenden Ende des Ventilsitzträgers
In
dem Ventilsitzkörper
Die
Strömung gelangt von der Austrittsöffnung
Die
Abspritzöffnungen
Die
Abspritzöffnungen
Die
schlitzförmigen Abspritzöffnungen
Die
Multi-Fächerstrahl-Düse
Die Zerstäubungsqualität des Fächerstrahls bzw. des Lamellenzerfalls ist so hoch, dass Brennstoffsprays mit extrem kleinen Brennstofftröpfchen mit einem Sauter Mean Diameter (SMD) von ca. 20 μm abspritzbar sind. Auf diese Weise kann sehr wirkungsvoll die HC-Emission der Brennkraftmaschine deutlich gegenüber bekannter Einspritzanordnungen reduziert werden.The atomization quality of the fan jet or of the lamellar decay is so high that fuel sprays with extremely small fuel droplets with a Sauter Mean Diameter (SMD) of approx. 20 μm can be sprayed off. This is how we can be kungsvoll the HC emission of the engine are significantly reduced compared to known injection arrangements.
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 19636396 A1 [0002] - DE 19636396 A1 [0002]
- - DE 19847625 A1 [0003] - DE 19847625 A1 [0003]
- - US 6019296 A [0004] - US 6019296 A [0004]
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710062183 DE102007062183A1 (en) | 2007-12-21 | 2007-12-21 | Fuel injection valve for fuel injection system in internal-combustion engine, has groove-shaped flow channel formed downstream to outlet in valve seat body, where channel opens to disk-shaped nozzle and extends downstream to openings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710062183 DE102007062183A1 (en) | 2007-12-21 | 2007-12-21 | Fuel injection valve for fuel injection system in internal-combustion engine, has groove-shaped flow channel formed downstream to outlet in valve seat body, where channel opens to disk-shaped nozzle and extends downstream to openings |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007062183A1 true DE102007062183A1 (en) | 2009-06-25 |
Family
ID=40689773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200710062183 Withdrawn DE102007062183A1 (en) | 2007-12-21 | 2007-12-21 | Fuel injection valve for fuel injection system in internal-combustion engine, has groove-shaped flow channel formed downstream to outlet in valve seat body, where channel opens to disk-shaped nozzle and extends downstream to openings |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102007062183A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018091212A1 (en) * | 2016-11-17 | 2018-05-24 | Robert Bosch Gmbh | Injection valve for internal combustion engines |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19636396A1 (en) | 1996-09-07 | 1998-03-12 | Bosch Gmbh Robert | Fuel injector valve for IC engine |
DE19847625A1 (en) | 1997-10-17 | 1999-04-22 | Toyota Motor Co Ltd | Fuel injection valve for internal combustion engine |
US6019296A (en) | 1997-11-19 | 2000-02-01 | Toyota Jidosha Kabushiki Kaisha | Fuel injector for an internal combustion engine |
-
2007
- 2007-12-21 DE DE200710062183 patent/DE102007062183A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19636396A1 (en) | 1996-09-07 | 1998-03-12 | Bosch Gmbh Robert | Fuel injector valve for IC engine |
DE19847625A1 (en) | 1997-10-17 | 1999-04-22 | Toyota Motor Co Ltd | Fuel injection valve for internal combustion engine |
US6019296A (en) | 1997-11-19 | 2000-02-01 | Toyota Jidosha Kabushiki Kaisha | Fuel injector for an internal combustion engine |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018091212A1 (en) * | 2016-11-17 | 2018-05-24 | Robert Bosch Gmbh | Injection valve for internal combustion engines |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1836387B1 (en) | Multi-fan-jet nozzle and a fuel injection valve provided with said nozzle | |
WO2000050766A1 (en) | Fuel injection valve | |
DE102006041472A1 (en) | Fuel injecting valve for fuel injection systems of internal-combustion engines, has discharge ports consist of two sections, where lower downstream section has larger opening width than opening width of upper upstream section | |
DE19636396A1 (en) | Fuel injector valve for IC engine | |
EP2064438B1 (en) | Fuel injection valve | |
EP2521853B1 (en) | Fuel injection valve | |
DE102006047136A1 (en) | Fuel injection valve for mixture-compressing, external-ignition internal-combustion engine, has atomizer device implemented as multi-fan jet-nozzle with openings, such that openings have exits that are shifted from center axes of openings | |
EP1402175B1 (en) | Fuel injection valve | |
WO2014183905A1 (en) | Valve for metering in fluid | |
EP1392969B1 (en) | Fuel injection valve | |
DE102006041471A1 (en) | Fuel injecting valve for fuel injection systems of internal-combustion engines, has spraying device which is carried out as multi-fan-jet nozzle such that fluid disks form laminated disks in which fluid disks run divergently to each other | |
EP1409867B1 (en) | Fuel-injection valve | |
DE102007062183A1 (en) | Fuel injection valve for fuel injection system in internal-combustion engine, has groove-shaped flow channel formed downstream to outlet in valve seat body, where channel opens to disk-shaped nozzle and extends downstream to openings | |
DE102006041476A1 (en) | Fuel injecting valve for fuel injection systems of internal combustion engine, has atomizing device, which is acted as multi-fan-jet nozzle with multiple pair of holes consists of two injection openings | |
DE102006044439A1 (en) | Fuel injection valve for direct injection of fuel in combustion chamber of internal combustion engine, has longitudinal axis, with actuator, with movable valve part, which acts together with fixed valve seat for opening and closing of valve | |
EP1379777B1 (en) | Fuel injection valve | |
DE102007062191A1 (en) | Fuel injection valve for fuel injection system of mixture-compressing spark ignition internal-combustion engine, has discharge ports formed in region of channel ends of inflow channel that tapers in channel width | |
DE102006044441A1 (en) | Fuel injecting valve for fuel injection system of internal-combustion engine, has narrow side surfaces of injecting opening tapering in flow direction convergent to each other such that opening tapers in flow direction | |
DE102007062187A1 (en) | Fuel injector | |
EP2072805B1 (en) | Fuel injector valve | |
DE102007062189A1 (en) | Fuel injecting valve for use in internal-combustion engine, has openings with outlet cross-section, where extension of section is smaller than extension in same direction of inlet cross section and sections connected by wall connections | |
DE102006041474A1 (en) | Fuel injecting valve for fuel injection systems of internal-combustion engines, has spraying device which is carried out as multi-fan-jet nozzle, which has multiple groove-shaped upstream flow areas and discharge port per upstream flow area | |
DE102004060535A1 (en) | Fuel injection valve for internal combustion engine, has several radially arranged channel-like areas provided in atomizer attachment, along which flow forms half-open jet in each case | |
DE102004049279A1 (en) | Automotive fuel injection valve gear has fuel passage holes part-blocked by pegs to form annular gap | |
DE102018221833A1 (en) | Valve for metering a fluid, in particular a fuel injection valve |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20130702 |