EP1799998B1 - Fuel injection valve - Google Patents
Fuel injection valve Download PDFInfo
- Publication number
- EP1799998B1 EP1799998B1 EP05804895A EP05804895A EP1799998B1 EP 1799998 B1 EP1799998 B1 EP 1799998B1 EP 05804895 A EP05804895 A EP 05804895A EP 05804895 A EP05804895 A EP 05804895A EP 1799998 B1 EP1799998 B1 EP 1799998B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel injection
- outlet port
- injection valve
- valve according
- 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.)
- Not-in-force
Links
- 239000000446 fuel Substances 0.000 title claims description 28
- 238000002347 injection Methods 0.000 title claims description 18
- 239000007924 injection Substances 0.000 title claims description 18
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 238000001465 metallisation Methods 0.000 claims description 2
- 238000000889 atomisation Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 230000009969 flowable effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 208000012868 Overgrowth Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013598 vector Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
Definitions
- the fuel injection valve according to the invention with the characterizing features of the main claim has the advantage that in a simple manner uniform atomization of the fuel is achieved, with a particularly high quality of preparation and Zerstäubungsgüte is achieved with very small fuel droplets.
- This is achieved in an advantageous manner in that, downstream of a valve seat, an inflowable passage area above at least one outlet opening in an inflow cavity provided upstream of the perforated disk is smaller than the area of the inlet plane of the outlet opening, wherein the passage area is calculated as the product from the circumference of the outlet opening in FIG Range of their entry level and the free height in the Anströmhohlraum.
- an inflow opening is provided with the annular Anströmhohlraum, which is greater than an outlet opening downstream of the valve seat.
- the valve seat body already assumes the function of influencing the flow in the perforated disc.
- the formation of the inflow opening achieves an S-blow in the flow for atomization improvement of the fuel, since the valve-seat body with the upper boundary of the inflow opening covers the outlet openings of the perforated disk.
- perforated disks By means of electrodeposition, perforated disks can be produced in a reproducible manner in an extremely precise and cost-effective manner in very large numbers simultaneously. In addition, this production allows an extremely large design freedom, since the contours of the openings in the perforated disc can be selected freely.
- FIG. 1 For example, as an embodiment, a valve in the form of an injector for fuel injection systems of mixture-compression spark-ignition internal combustion engines is partially shown.
- the injection valve has a tubular valve seat carrier 1, which only schematically indicates a part of a valve housing and in which a longitudinal opening 3 is formed concentrically to a valve longitudinal axis 2.
- a longitudinal opening 3 In the longitudinal opening 3 is a z.
- the actuation of the injection valve takes place in a known manner, for example electromagnetically.
- a schematically indicated electromagnetic circuit with a solenoid 10, an armature 11 and a core 12.
- the armature 11 is connected to the valve closing body.
- 7 opposite end of the valve needle 5 is connected by, for example, a trained by a laser weld and aligned with the core 12.
- valve seat body 16 In the downstream end of the valve seat carrier 1 is a valve seat body 16, e.g. tightly assembled by welding. At its lower end face 17 facing away from the valve closing body 7, the valve seat body 16 is stepped, with a recess 20 being provided in a central area around the valve longitudinal axis 2, in which a flat, e.g. single-layer perforated disc 23 is introduced.
- the perforated disc 23 has at least one, but ideally two to forty outlet openings 24.
- an inflow opening 19 Upstream of the recess 20 and thus of the outlet openings 24 of the perforated disc 23, an inflow opening 19 is provided in the valve seat body 16, via which the individual outlet openings 24 are flowed.
- the inflow opening 19 has a diameter which is greater than the opening width of an outlet opening 27 in the valve seat body 16, from which the fuel flows into the inflow opening 19 and ultimately into the outlet openings 24.
- the insertion depth of the valve seat body 16 with the perforated disc 23 in the longitudinal opening 3 determines the size of the stroke of the valve needle 5, since the one end position of the valve needle 5 at non-energized solenoid 10 by the system of the valve closing body 7 at a downstream conically tapered valve seat surface 29 of the valve seat body 16 is set.
- the other end position of the valve needle 5 is fixed in the excited magnet coil 10, for example, by the system of the armature 11 to the core 12. The path between these two end positions of the valve needle 5 thus represents the hub.
- the perforated disk 23 is produced, for example, by means of galvanic metal deposition, wherein the production of a single-layer perforated disk 23 is advantageous, in particular with the technique of lateral overgrowth. A punching technical production of the perforated disc 23 is also conceivable.
- the outlet openings 24 ideally have a trumpet-shaped or lavallous-like contour. From the cross-section, the outlet openings 24 may be e.g. have a circular, oval or polygonal shape.
- FIG. 2 shows an enlarged section II in FIG. 1 to clarify the geometry of the Anströmhohlraums 26 between the boundary surface 30 of the valve seat body 16 and the perforated disc 23.
- the valve seat body 16 is configured such that the boundary surface 30, starting from the outlet opening 27 to the perforated disc 23 radially outwardly sloping inclined continuously.
- an inlet plane 31 of the at least one outlet opening 24, which is perpendicular to the valve longitudinal axis 2 has only a small height of the onflow cavity 26 and the flow is steadily accelerated on the way to the outlet openings 24.
- a flowable vertical passage area 32 above the outlet opening 24 in the onflow cavity 26, which is calculated as the product of the circumference of the Outlet opening 24 in the region of its inlet plane 31 and the free height in the Anströmhohlraum 26, smaller than the surface of the inlet plane 31 of the outlet opening 24 (surface 32 ⁇ surface 31).
- This ratio applies to at least one outlet opening 24; However, the highest atomization quality is achieved if this ratio is maintained at all outlet openings 24 of the perforated disc 23.
- the passage area 32 is the smallest, volume-measuring cross-section in the flow path.
- the inlet plane 31 of the outlet opening 24 offers the flow entering it more cross-sectional area than is required for the pre-metered through the passage surface 32 flow rate.
- the flow is thus completely detached from the wall of the outlet opening 24 in the entry plane 31.
- the horizontal velocity components of the flow entering the inlet plane 31 are thus not hindered by the wall of the outlet opening 24 at the entry plane 31, so that the fuel jet when leaving the outlet opening 24 has the full intensity of the horizontal components generated in the onflow cavity 26 and therefore with maximum atomization fan out.
- FIGS. 4 and 5 two embodiments are shown in which the boundary surface 30 of the valve seat body 16 is flat and perpendicular to the longitudinal axis of the valve 2, but the outlet openings 24 are raised in the Anströmhohlraum 26 in executed.
- the region of the perforated disc 23 which is raised in each case around the outlet openings 24 can be, for example, convex ( FIG. 4 ) or concave ( FIG. 5 ) be formed bulging out.
- Such contours can be produced, for example, by means of ECM processes (Electro Chemical Machining).
- ECM processes Electro Chemical Machining
- each outlet opening 24 is also fed with a considerable proportion of flow through the rear area.
- the back space R is understood to be the region of the onflow cavity 26 lying radially outward of the respective outlet opening 24. Consequently, the lateral velocity vectors are divergent at the outlet of the outlet openings 24 and provide good atomization of the fuel.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Description
Die Erfindung geht aus von einem Brennstoffeinspritzventil nach der Gattung des Hauptanspruchs.The invention relates to a fuel injection valve according to the preamble of the main claim.
Bekannt ist bereits aus der
Aus der
Das erfindungsgemäße Brennstoffeinspritzventil mit den kennzeichnenden Merkmalen des Hauptanspruchs 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 Brennstofftröpfchen erzielt wird. Dies wird in vorteilhafter Weise dadurch erreicht, dass stromabwärts eines Ventilsitzes eine anströmbare Durchtrittsfläche oberhalb wenigstens einer Auslassöffnung in einem stromaufwärts der Lochscheibe vorgesehenen Anströmhohlraum kleiner ist als die Fläche der Eintrittsebene der Auslassöffnung, wobei sich die Durchtrittsfläche berechnet als das Produkt aus dem Umfang der Auslassöffnung im Bereich ihrer Eintrittsebene und der freien Höhe im Anströmhohlraum. Die horizontalen Geschwindigkeitskomponenten der in die Eintrittsebene einmündenden Strömung werden durch die Wandung der jeweiligen Auslassöffnung an der Eintrittsebene nicht behindert, so dass der Brennstoffstrahl beim Verlassen der Auslassöffnung die volle Intensität der in dem Anströmhohlraum generierten Horizontalkomponenten besitzt und deshalb mit maximaler Zerstäubung auffächert.The fuel injection valve according to the invention with the characterizing features of the main claim has the advantage that in a simple manner uniform atomization of the fuel is achieved, with a particularly high quality of preparation and Zerstäubungsgüte is achieved with very small fuel droplets. This is achieved in an advantageous manner in that, downstream of a valve seat, an inflowable passage area above at least one outlet opening in an inflow cavity provided upstream of the perforated disk is smaller than the area of the inlet plane of the outlet opening, wherein the passage area is calculated as the product from the circumference of the outlet opening in FIG Range of their entry level and the free height in the Anströmhohlraum. The horizontal velocity components of the flow entering the entry plane are not obstructed by the wall of the respective outlet opening at the entry plane, so that the fuel jet has the full intensity of the horizontal components generated in the onflow cavity when exiting the exit opening and therefore fanning with maximum atomization.
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen des im Hauptanspruch angegebenen Brennstoffeinspritzventils möglich.The measures listed in the dependent claims advantageous refinements and improvements of the main claim fuel injector are possible.
In vorteilhafter Weise ist im Ventilsitzkörper stromaufwärts der Auslassöffnungen eine Zuströmöffnung mit dem ringförmigen Anströmhohlraum vorgesehen, die größer ist als eine Austrittsöffnung stromabwärts des Ventilsitzes. Auf diese Weise übernimmt der Ventilsitzkörper bereits die Funktion einer Strömungsbeeinflussung in der Lochscheibe. In besonders vorteilhafter Weise wird durch die Ausbildung der Zuströmöffnung ein S-Schlag in der Strömung zur Zerstäubungsverbesserung des Brennstoffs erreicht, da der Ventilsitzkörper mit der oberen Begrenzung der Zuströmöffnung die Auslassöffnungen der Lochscheibe überdeckt.Advantageously, in the valve seat body upstream of the outlet openings an inflow opening is provided with the annular Anströmhohlraum, which is greater than an outlet opening downstream of the valve seat. In this way, the valve seat body already assumes the function of influencing the flow in the perforated disc. In a particularly advantageous manner, the formation of the inflow opening achieves an S-blow in the flow for atomization improvement of the fuel, since the valve-seat body with the upper boundary of the inflow opening covers the outlet openings of the perforated disk.
Mittels galvanischer Metallabscheidung lassen sich in vorteilhafter Weise Lochscheiben in reproduzierbarer Weise äußerst präzise und kostengünstig in sehr großen Stückzahlen gleichzeitig herstellen. Außerdem erlaubt diese Herstellungsweise eine extrem große Gestaltungsfreiheit, da die Konturen der Öffnungen in der Lochscheibe frei wählbar sind.By means of electrodeposition, perforated disks can be produced in a reproducible manner in an extremely precise and cost-effective manner in very large numbers simultaneously. In addition, this production allows an extremely large design freedom, since the contours of the openings in the perforated disc can be selected freely.
Ausführungsbeispiele der Erfindung sind in der Zeichnung vereinfacht dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen
In der
Die Betätigung des Einspritzventils erfolgt in bekannter Weise, beispielsweise elektromagnetisch. Zur axialen Bewegung der Ventilnadel 5 und damit zum Öffnen entgegen der Federkraft einer nicht dargestellten Rückstellfeder bzw. Schließen des Einspritzventils dient ein schematisch angedeuteter elektromagnetischer Kreis mit einer Magnetspule 10, einem Anker 11 und einem Kern 12. Der Anker 11 ist mit dem dem Ventilschließkörper 7 abgewandten Ende der Ventilnadel 5 durch z.B. eine mittels eines Lasers ausgebildete Schweißnaht verbunden und auf den Kern 12 ausgerichtet.The actuation of the injection valve takes place in a known manner, for example electromagnetically. For axial movement of the
In dem stromabwärts liegenden Ende des Ventilsitzträgers 1 ist ein Ventilsitzkörper 16 z.B. durch Schweißen dicht montiert. An seiner dem Ventilschließkörper 7 abgewandten, unteren Stirnseite 17 ist der Ventilsitzkörper 16 gestuft ausgeführt, wobei in einem mittleren Bereich rund um die Ventillängsachse 2 eine Vertiefung 20 vorgesehen ist, in der eine flache, z.B. einlagige Lochscheibe 23 eingebracht ist. Die Lochscheibe 23 weist wenigstens eine, idealerweise jedoch zwei bis vierzig Auslassöffnungen 24 auf. Stromaufwärts der Vertiefung 20 und damit der Auslassöffnungen 24 der Lochscheibe 23 ist im Ventilsitzkörper 16 eine Zuströmöffnung 19 vorgesehen, über die die einzelnen Auslassöffnungen 24 angeströmt werden. Die Zuströmöffnung 19 besitzt dabei einen Durchmesser, der größer ist als die Öffnungsweite einer Austrittsöffnung 27 im Ventilsitzkörper 16, aus der der Brennstoff kommend in die Zuströmöffnung 19 und letztlich in die Auslassöffnungen 24 einströmt.In the downstream end of the valve seat carrier 1 is a
Die Zuströmöffnung 19 ist erfindungsgemäß insbesondere im unmittelbaren Anströmbereich der Auslassöffnungen 24 mit einer besonderen Geometrie ausgeführt. Der gegenüber der Austrittsöffnung 27 durchmessergrößere Ringbereich der Zuströmöffnung 19 ist in den
Die Verbindung von Ventilsitzkörper 16 und Lochscheibe 23 erfolgt beispielsweise durch eine umlaufende und dichte, mittels eines Lasers ausgebildete Schweißnaht 25, die außerhalb der Zuströmöffnung 19 platziert ist. Nach der Befestigung der Lochscheibe 23 liegt diese in der Vertiefung 20 versenkt gegenüber der Stirnseite 17.The connection of
Die Einschubtiefe des Ventilsitzkörpers 16 mit der Lochscheibe 23 in der Längsöffnung 3 bestimmt die Größe des Hubs der Ventilnadel 5, da die eine Endstellung der Ventilnadel 5 bei nicht erregter Magnetspule 10 durch die Anlage des Ventilschließkörpers 7 an einer sich stromabwärts konisch verjüngenden Ventilsitzfläche 29 des Ventilsitzkörpers 16 festgelegt ist. Die andere Endstellung der Ventilnadel 5 wird bei erregter Magnetspule 10 beispielsweise durch die Anlage des Ankers 11 an dem Kern 12 festgelegt. Der Weg zwischen diesen beiden Endstellungen der Ventilnadel 5 stellt somit den Hub dar.The insertion depth of the
Alternativ zu dem in der
Die Auslassöffnungen 24 der Lochscheibe 23 stehen mit der Zuströmöffnung 19 und dem ringförmigen Anströmhohlraum 26 in unmittelbarer Strömungsverbindung und werden dabei von der oberen Begrenzung der Zuströmöffnung 19 überdeckt. Mit anderen Worten ausgedrückt liegt ein vollständiger Versatz von der den Einlass der Zuströmöffnung 19 festlegenden Austrittsöffnung 27 und den Auslassöffnungen 24 vor. Aufgrund des radialen Versatzes der Auslassöffnungen 24 gegenüber der Austrittsöffnung 27 ergibt sich ein S-förmiger Strömungsverlauf des Mediums, hier des Brennstoffs.The
Durch den sogenannten S-Schlag vor und innerhalb der Lochscheibe 23 mit mehreren starken Strömungsumlenkungen wird der Strömung eine starke, zerstäubungsfördernde Turbulenz aufgeprägt. Der Geschwindigkeitsgradient quer zur Strömung ist dadurch besonders stark ausgeprägt. Er ist ein Ausdruck für die Änderung der Geschwindigkeit quer zur Strömung, wobei die Geschwindigkeit in der Mitte der Strömung deutlich größer ist als in der Nähe der Wandungen. Die aus den Geschwindigkeitsunterschieden resultierenden erhöhten Scherspannungen im Fluid begünstigen den Zerfall in feine Tröpfchen nahe der Auslassöfmungen 24. Erfindungsgemäß wird durch die spezifische Geometrie des Anströmhohlraums 26 das Fluid noch zusätzlich in seiner Zerstäubung positiv beeinflusst, so dass ein noch weiter verbesserter Zerfall in feinste Tröpfchen erzielbar ist.By the so-called S-blow before and within the perforated
Die Lochscheibe 23 ist beispielsweise mittels galvanischer Metallabscheidung hergestellt, wobei die Herstellung einer einlagigen Lochscheibe 23 insbesondere mit der Technik des lateralen Überwachsens vorteilhaft ist. Eine stanztechnische Herstellung der Lochscheibe 23 ist ebenso denkbar. Die Auslassöffnungen 24 besitzen in idealer Weise eine trompetenförmige oder lavaldüsenartige Kontur. Vom Querschnitt her können die Auslassöffnungen 24 z.B. eine kreisförmige, ovale oder auch mehreckige Form aufweisen.The perforated
Bei den vorbeschriebenen Größenverhältnissen ist die Durchtrittsfläche 32 der kleinste, mengenzumessende Querschnitt im Strömungspfad. Die Eintrittsebene 31 der Auslassöffnung 24 bietet der in sie eintretenden Strömung mehr Querschnittsfläche, als für die durch die Durchtrittsfläche 32 vordosierte Durchflussmenge benötigt wird. Die Strömung ist insofern in der Eintrittsebene 31 vollständig von der Wandung der Auslassöffnung 24 abgelöst. Die horizontalen Geschwindigkeitskomponenten der in die Eintrittsebene 31 einmündenden Strömung werden also durch die Wandung der Auslassöffnung 24 an der Eintrittsebene 31 nicht behindert, so dass der Brennstoffstrahl beim Verlassen der Auslassöffnung 24 die volle Intensität der in dem Anströmhohlraum 26 generierten Horizontalkomponenten besitzt und deshalb mit maximaler Zerstäubung auffächert.In the above-described size ratios, the
In den
In den
Bei den in den
Claims (10)
- Fuel injection valve for fuel injection systems of internal combustion engines, with a valve longitudinal axis (2), with a valve-seat body (16) having a fixed valve seat (29), with a valve-closing body (7) which cooperates with the valve seat (29) and is movable axially along the valve longitudinal axis (2), and with a perforated disc (23) which is arranged downstream of the valve seat (29) and which possesses at least one outlet port (24), and also with a flow approach cavity (26) which is the annular outer region of an inflow port (19) which is provided between an outflow port (27) of the valve-seat body (16) and the perforated disc (23), characterized in that a flow approach passage area (32) via the at least one outlet port (24) in the flow approach cavity (26) provided upstream of the perforated disc (23), which passage area is calculated as the product of the circumference of the outlet port (24) in the region of its inflow plane (31) and the free height in the flow approach cavity (26), is smaller than the area of the inflow plane (31) of the outlet port (24).
- Fuel injection valve according to Claim 1, characterized in that the inflow port (19) possesses a diameter which is larger than the opening width of the outflow port (27).
- Fuel injection valve according to one of the preceding claims, characterized in that the flow approach cavity (26) is delimited, opposite the at least one outlet port (24), by a boundary surface (30) of the valve-seat body (16).
- Fuel injection valve according to Claim 1 or 2, characterized in that a full offset is present between the outflow port (27) and the at least one outlet port (24).
- Fuel injection valve according to Claim 3, characterized in that the boundary surface (30) is of obliquely inclined form.
- Fuel injection valve according to Claim 3, characterized in that the boundary surface (30) is arched at least in the region of the at least one outlet port (24).
- Fuel injection valve according to one of the preceding claims, characterized in that the at least one outlet port (24) is of a form elevated into the flow approach cavity (26).
- Fuel injection valve according to one of the preceding claims, characterized in that the at least one outlet port (24) has a contour in the form of a trumpet or resembling a laval nozzle.
- Fuel injection valve according to one of the preceding claims, characterized in that the perforated disc (23) can be produced by means of electrolytic metal deposition or by stamping.
- Fuel injection valve according to one of the preceding claims, characterized in that between two and forty outlet ports (24) are provided in the perforated disc (23), and the flow approach passage area (32) above each outlet port (24) in the flow approach cavity (26) is smaller than the area of the inflow plane (31) of the respective outlet port (24).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004049278A DE102004049278A1 (en) | 2004-10-09 | 2004-10-09 | Fuel injector |
PCT/EP2005/054699 WO2006040247A1 (en) | 2004-10-09 | 2005-09-20 | Fuel injection valve |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1799998A1 EP1799998A1 (en) | 2007-06-27 |
EP1799998B1 true EP1799998B1 (en) | 2009-11-25 |
Family
ID=35260869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05804895A Not-in-force EP1799998B1 (en) | 2004-10-09 | 2005-09-20 | Fuel injection valve |
Country Status (5)
Country | Link |
---|---|
US (1) | US20090057444A1 (en) |
EP (1) | EP1799998B1 (en) |
JP (1) | JP4537457B2 (en) |
DE (2) | DE102004049278A1 (en) |
WO (1) | WO2006040247A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013225948A1 (en) * | 2013-12-13 | 2015-06-18 | Continental Automotive Gmbh | Nozzle head and fluid injection valve |
JP6292188B2 (en) * | 2015-04-09 | 2018-03-14 | 株式会社デンソー | Fuel injection device |
DE102016222606A1 (en) | 2016-11-17 | 2018-05-17 | Robert Bosch Gmbh | Injection valve for internal combustion engines |
US20200018276A1 (en) * | 2018-07-16 | 2020-01-16 | Continental Automotive Systems, Inc. | Multi-dimple orifice disc for a fluid injector, and methods for constructing and utilizing same |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995004881A1 (en) * | 1993-08-06 | 1995-02-16 | Ford Motor Company | A fuel injector |
DE69435124D1 (en) * | 1993-10-04 | 2008-09-25 | Res Internat Inc | Micromachined filters |
US5489065A (en) * | 1994-06-30 | 1996-02-06 | Siemens Automotive L.P. | Thin disk orifice member for fuel injector |
JP3156554B2 (en) * | 1995-07-24 | 2001-04-16 | トヨタ自動車株式会社 | Fuel injection valve |
DE19703200A1 (en) * | 1997-01-30 | 1998-08-06 | Bosch Gmbh Robert | Fuel injector |
DE19937961A1 (en) * | 1999-08-11 | 2001-02-15 | Bosch Gmbh Robert | Fuel injection valve and method for producing outlet openings on valves |
EP1184150A4 (en) * | 2000-03-09 | 2007-07-18 | Toyo Tire & Rubber Co | Method for producing rubber-resin composite |
US6742727B1 (en) * | 2000-05-10 | 2004-06-01 | Siemens Automotive Corporation | Injection valve with single disc turbulence generation |
JP3837283B2 (en) * | 2000-10-24 | 2006-10-25 | 株式会社ケーヒン | Fuel injection valve |
US6817545B2 (en) * | 2002-01-09 | 2004-11-16 | Visteon Global Technologies, Inc. | Fuel injector nozzle assembly |
US6783085B2 (en) * | 2002-01-31 | 2004-08-31 | Visteon Global Technologies, Inc. | Fuel injector swirl nozzle assembly |
JP3933545B2 (en) * | 2002-08-27 | 2007-06-20 | 株式会社日本自動車部品総合研究所 | Fuel injection nozzle and fuel injection apparatus using the same |
US6789754B2 (en) * | 2002-09-25 | 2004-09-14 | Siemens Vdo Automotive Corporation | Spray pattern control with angular orientation in fuel injector and method |
WO2004109096A1 (en) * | 2003-06-03 | 2004-12-16 | Siemens Vdo Automotive Corporation | Reduction in hydrocarbon emission via spray pattern control through fuel pressure control in fuel injection systems |
JP2005113815A (en) * | 2003-10-08 | 2005-04-28 | Keihin Corp | Fuel injection valve |
US7334746B2 (en) * | 2004-03-08 | 2008-02-26 | Continental Automotive Systems Us, Inc. | Seat-lower guide combination |
-
2004
- 2004-10-09 DE DE102004049278A patent/DE102004049278A1/en not_active Withdrawn
-
2005
- 2005-09-20 US US11/665,095 patent/US20090057444A1/en not_active Abandoned
- 2005-09-20 EP EP05804895A patent/EP1799998B1/en not_active Not-in-force
- 2005-09-20 WO PCT/EP2005/054699 patent/WO2006040247A1/en active Application Filing
- 2005-09-20 JP JP2007535136A patent/JP4537457B2/en not_active Expired - Fee Related
- 2005-09-20 DE DE502005008594T patent/DE502005008594D1/en active Active
Also Published As
Publication number | Publication date |
---|---|
WO2006040247A1 (en) | 2006-04-20 |
DE502005008594D1 (en) | 2010-01-07 |
DE102004049278A1 (en) | 2006-04-13 |
US20090057444A1 (en) | 2009-03-05 |
JP4537457B2 (en) | 2010-09-01 |
EP1799998A1 (en) | 2007-06-27 |
JP2008516137A (en) | 2008-05-15 |
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