DE102006044439A1 - 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 - Google Patents
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 Download PDFInfo
- Publication number
- DE102006044439A1 DE102006044439A1 DE200610044439 DE102006044439A DE102006044439A1 DE 102006044439 A1 DE102006044439 A1 DE 102006044439A1 DE 200610044439 DE200610044439 DE 200610044439 DE 102006044439 A DE102006044439 A DE 102006044439A DE 102006044439 A1 DE102006044439 A1 DE 102006044439A1
- Authority
- DE
- Germany
- Prior art keywords
- opening
- fuel injection
- valve
- fuel
- injection valve
- 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- Withdrawn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
- 239000000446 fuel Substances 0.000 title claims abstract description 50
- 238000002347 injection Methods 0.000 title claims abstract description 32
- 239000007924 injection Substances 0.000 title claims abstract description 32
- 238000002485 combustion reaction Methods 0.000 title claims description 11
- 238000009713 electroplating Methods 0.000 description 5
- 238000007906 compression Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 241000446313 Lamella Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000006223 plastic coating Substances 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 235000012431 wafers Nutrition 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Stand der TechnikState of the art
Die Erfindung geht aus von einem Brennstoffeinspritzventil nach der Gattung des Anspruchs 1.The The invention is based on a fuel injection valve after Genus of claim 1.
Aus
der
In
der
Vorteile der ErfindungAdvantages of the invention
Das erfindungsgemäße Brennstoffeinspritzventil mit den kennzeichnenden Merkmalen des Anspruchs 1 hat den Vorteil, dass mit ihm eine sehr hohe Zerstäubungsgüte eines abzuspritzenden Brennstoffs erzielt wird. Mit dem erfindungsgemäßen Brennstoffeinspritzventil ist in einer an ihm integrierten Zerstäuberscheibe eine Auffächerung des Brennstoffs möglich, mit der optimale Spraybilder bei der Saugrohreinspritzung oder beim direkten Einspritzen von Brennstoff in einen Brennraum erzeugt werden können. Als Konsequenz können an einem Einspritzventil einer Brennkraftmaschine u.a. die Abgasemission der Brennkraftmaschine reduziert und ebenso eine Verringerung des Brennstoffverbrauchs erzielt werden.The Fuel injection valve according to the invention with the characterizing features of claim 1 has the advantage that with him a very high Zerstäubungsgüte a fuel to be sprayed is achieved. With the fuel injection valve according to the invention is a fanning out in a built-in atomizer disk of the fuel possible, with the optimal spray pictures at the intake manifold injection or at direct injection of fuel into a combustion chamber can be generated. When Consequence on an injection valve of an internal combustion engine, etc. the exhaust emission the internal combustion engine reduces and also a reduction of Fuel consumption can be achieved.
In vorteilhafter Weise ist die Zerstäuberscheibe mit wenigstens einem radial verlaufenden Öffnungsbereich versehen, der an einer Wandung endet und von der aus der Brennstoff aufgrund der schräg unter starkem Winkel geneigten Schlitzanordnung weitgehend senkrecht zur Strömungsrichtung im Öffnungsbereich aufgefächert wird. Die erfindungsgemäße Ausbildung ermöglicht eine optimale hydrodynamische Ausdünnung der abgespritzten Brennstofflamellen. Die Dicken der unmittelbar aus den Austrittsöffnungen austretenden Brennstofflamellen betragen z.B. nur ca. 60% der Breite der Austrittsöffnungen selbst, da eine optimierte Ablösung der Strömung innerhalb der Austrittsöffnungen ermöglicht wird. Die Ausdünnung der Lamellen korreliert dabei mit der Zerstäubungsgüte (Sauter Mean Diameter SMD).In Advantageously, the atomizer disk is at least a radially extending opening area provided, which ends at a wall and from which the fuel due to the oblique At a high angle inclined slot arrangement largely perpendicular to the flow direction in the opening area fanned becomes. The inventive training allows optimal hydrodynamic thinning of the sprayed fuel louvers. The thicknesses of the fuel lamellae emerging directly from the outlet openings be e.g. only about 60% of the width of the outlet openings itself, as an optimized replacement of the flow inside the outlet openings allows becomes. The thinning The lamellas correlate with the atomization quality (Sauter Mean Diameter SMD).
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen des im Anspruch 1 angegebenen Brennstoffeinspritzventils möglich.By in the subclaims listed activities are advantageous developments and improvements of the claim 1 specified fuel injector possible.
Von Vorteil ist es, mehr als einen Öffnungsbereich in der Zerstäuberscheibe vorzusehen. Durch eine gezielte Anzahl an Öffnungsbereichen kann beispielsweise ein gewünschtes schräg abgespritztes Spray erzeugt werden. Andererseits kann bei einer symmetrischen Anordnung von Öffnungsbereichen, z.B. mit vier Öffnungsbereichen, ein gleichmäßiges feinstzerstäubtes Spray, zusammengesetzt aus mehreren Fächerstrahlen, abgegeben werden.From The advantage is more than one opening area in the atomizer disk provided. By a specific number of opening areas, for example a desired one aslant sprayed off spray can be generated. On the other hand, in a symmetric Arrangement of opening areas, e.g. with four opening areas, a uniform atomised spray, composed of several fan beams, be delivered.
Besonders vorteilhaft ist es, die Zerstäuberscheibe mittels der so genannten Multilayergalvanik herzustellen. Aufgrund ihrer metallischen Ausbildung sind solche Zerstäuberscheiben sehr bruchsicher und gut montierbar. Die Anwendung der Multilayergalvanik erlaubt eine extrem große Gestaltungsfreiheit, da die Konturen der Öffnungsbereiche in der Zerstäuberscheibe frei wählbar sind.Especially It is advantageous, the atomizer disc produce by means of the so-called multilayer electroplating. by virtue of their metallic training such atomizer discs are very shatterproof and easy to assemble. The application of multilayer electroplating allows one extremely big Freedom of design, as the contours of the opening areas in the atomizer disk freely selectable are.
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
Das
in der
Ein
beispielsweise gestufter Spulenkörper
In
dem Kern
An
das obere Gehäuseteil
Mit
seinem unteren Ende
Die
Betätigung
des Einspritzventils erfolgt in bekannter Weise z.B. elektromagnetisch.
Zur axialen Bewegung der Ventilnadel
Anstelle des elektromagnetischen Kreises kann auch ein anderer erregbarer Aktuator, wie z.B. ein Piezostack, in einem vergleichbaren Brennstoffeinspritzventil verwendet werden bzw. das Betätigen des axial beweglichen Ventilteils durch einen hydraulischen Druck oder Servodruck erfolgen.Instead of The electromagnetic circuit can also be another excitable Actuator, such as a piezo stack, in a comparable fuel injector be used or pressing the axially movable valve member by a hydraulic pressure or Servo printing done.
Eine
in der Längsöffnung
Der
Hub der Ventilnadel
Die
elektrische Kontaktierung der Magnetspule
Ein
erster Absatz
Gebildet
wird die Zerstäuberscheibe
In
der oberen Einströmebene
In
der unteren Abströmebene
Über die
Querschnittsflächen
der Öffnungsbereiche
Durch
eine konvergierende Ausformung der Wandungen der Öffnungsbereiche
Anstelle
der schlitzförmigen
Austrittsöffnungen
Während in
den
In
den
Die
Zerstäuberscheibe
Claims (11)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200610044439 DE102006044439A1 (en) | 2006-09-21 | 2006-09-21 | 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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200610044439 DE102006044439A1 (en) | 2006-09-21 | 2006-09-21 | 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 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102006044439A1 true DE102006044439A1 (en) | 2008-03-27 |
Family
ID=39105012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE200610044439 Withdrawn DE102006044439A1 (en) | 2006-09-21 | 2006-09-21 | 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 |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102006044439A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010028987A1 (en) * | 2008-09-15 | 2010-03-18 | Robert Bosch Gmbh | Valve for atomizing a fluid |
| WO2013049867A1 (en) | 2011-10-05 | 2013-04-11 | Kurt Himmelfreundpointner | Method and device for influencing the smell which comes from shaft openings of underground sewers |
| CN105402068A (en) * | 2015-11-04 | 2016-03-16 | 中国北方发动机研究所(天津) | Double-coil type high-speed electromagnetic valve |
-
2006
- 2006-09-21 DE DE200610044439 patent/DE102006044439A1/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010028987A1 (en) * | 2008-09-15 | 2010-03-18 | Robert Bosch Gmbh | Valve for atomizing a fluid |
| JP2014029159A (en) * | 2008-09-15 | 2014-02-13 | Robert Bosch Gmbh | Valve for spraying fluid |
| US8714465B2 (en) | 2008-09-15 | 2014-05-06 | Robert Bosch Gmbh | Valve for atomizing a fluid |
| WO2013049867A1 (en) | 2011-10-05 | 2013-04-11 | Kurt Himmelfreundpointner | Method and device for influencing the smell which comes from shaft openings of underground sewers |
| CN105402068A (en) * | 2015-11-04 | 2016-03-16 | 中国北方发动机研究所(天津) | Double-coil type high-speed electromagnetic valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20110401 |