DE102011078346A1 - Switching valve, method for manufacturing a switching valve and fuel injector with a switching valve - Google Patents
Switching valve, method for manufacturing a switching valve and fuel injector with a switching valve Download PDFInfo
- Publication number
- DE102011078346A1 DE102011078346A1 DE201110078346 DE102011078346A DE102011078346A1 DE 102011078346 A1 DE102011078346 A1 DE 102011078346A1 DE 201110078346 DE201110078346 DE 201110078346 DE 102011078346 A DE102011078346 A DE 102011078346A DE 102011078346 A1 DE102011078346 A1 DE 102011078346A1
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- switching valve
- valve seat
- fuel injector
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- 239000000446 fuel Substances 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims description 17
- 238000000034 method Methods 0.000 title claims description 6
- 238000002347 injection Methods 0.000 claims abstract description 10
- 239000007924 injection Substances 0.000 claims abstract description 10
- 238000005553 drilling Methods 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 4
- 239000006181 electrochemical material Substances 0.000 claims description 3
- 230000003628 erosive effect Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000013459 approach Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012549 training 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
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
- F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
- F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
-
- 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
- F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0014—Valves characterised by the valve actuating means
- F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/0033—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/0043—Two-way valves
-
- 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
- F02M2200/04—Fuel-injection apparatus having means for avoiding effect of cavitation, e.g. erosion
-
- 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
- F02M2200/28—Details of throttles in fuel-injection apparatus
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
- F02M63/0073—Pressure balanced valves
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Manufacturing & Machinery (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Die Erfindung betrifft ein Schaltventil (10) zur Steuerung eines Einspritzventils einer Kraftstoffeinspritzvorrichtung, insbesondere eines Kraftstoffinjektors (100) in einem Common-Rail-Einspritzsystem, mit einem Ventilstück (22) und einem an dem Ventilstück (22) ausgebildeten Ventilsitz (20), mit einem mit dem Ventilsitz (20) zusammenwirkenden, hubbeweglich angeordneten Ventilschließelement (12), wobei im Ventilstück (22) eine Bohrung (30) ausgebildet ist, die einen als Drossel dienenden ersten Abschnitt (34) aufweist, wobei das Längen/Durchmesserverhältnis des ersten Abschnitts (34) größer als drei ist, und mit einem dem Ventilsitz (20) zugewandten zweiten Abschnitt (35) mit nahezu konstantem Durchmesser (D), der sich an den ersten Abschnitt (34) anschließt, und der bis zum Ventilsitz (20) reicht. Erfindungsgemäß ist es vorgesehen, dass sich der erste Abschnitt (34) unmittelbar an den zweiten Abschnitt (35), ohne einen die beiden Abschnitte (34, 35) verbindenden, einen zylindrischen Bereich aufweisenden Zwischenabschnitt, anschließt.The invention relates to a switching valve (10) for controlling an injection valve of a fuel injection device, in particular a fuel injector (100) in a common rail injection system, comprising a valve piece (22) and a valve seat (20) formed on the valve piece (22) a valve closing element (12) cooperating with the valve seat (20), wherein in the valve piece (22) a bore (30) is formed, which has a first portion (34) serving as throttle, wherein the length / diameter ratio of the first portion (34) is greater than three, and having a valve seat (20) facing the second portion (35) with almost constant diameter (D), which adjoins the first portion (34) and which extends to the valve seat (20) , According to the invention, it is provided that the first section (34) directly adjoins the second section (35) without an intermediate section which connects the two sections (34, 35) and has a cylindrical area.
Description
Stand der TechnikState of the art
Die Erfindung betrifft ein Schaltventil zur Steuerung eines Einspritzventils einer Kraftstoffeinspritzvorrichtung nach dem Oberbegriff des Anspruchs 1. Ferner betrifft die Erfindung ein Verfahren zum Herstellen eines erfindungsgemäßen Schaltventils und einen Kraftstoffinjektor, der ein erfindungsgemäßes Schaltventil aufweist. The invention relates to a switching valve for controlling an injection valve of a fuel injection device according to the preamble of claim 1. Furthermore, the invention relates to a method for producing a switching valve according to the invention and a fuel injector having a switching valve according to the invention.
Ein derartiges Schaltventil ist aus der
Offenbarung der ErfindungDisclosure of the invention
Ausgehend von dem dargestellten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, ein Schaltventil nach dem Oberbegriff des Anspruchs 1 derart weiterzubilden, dass es sich bei funktionell weiterhin günstigen Eigenschaften besonders einfach und kostengünstig herstellen lässt. Diese Aufgabe wird erfindungsgemäß bei einem Schaltventil mit den Merkmalen des Anspruchs 1 dadurch gelöst, dass sich an den ersten, den Drosselabschnitt ausbildenden Abschnitt der Durchgangsbohrung unmittelbar der zweite, bis zum Ventilsitz reichenden Abschnitt anschließt, ohne einen die beiden Abschnitte verbindenden, einen zylindrischen Bereich aufweisenden Zwischenabschnitt. Mit anderen Worten gesagt bedeutet dies, dass, im Gegensatz zum Stand der Technik, auf einen Diffusorabschnitt in der Durchgangsbohrung vollständig verzichtet wird, so dass sich der erste Abschnitt unmittelbar am Grund des zweiten Abschnitts anschließt. Dadurch wird insbesondere der Vorteil erzielt, dass auf eine zusätzliche, separate Fertigung des Diffusorabschnittes verzichtet werden kann, was die Fertigungskosten herabsetzt. Darüber hinaus ist durch die axial näher an den Ventilsitz gerückte Position des ersten Abschnitts (Drosselabschnitt) eine einfachere Fertigung des ersten Abschnitts möglich. Es hat sich durch Versuche und Simulationen überraschenderweise herausgestellt, dass bei den zur Diskussion stehenden Betriebsdrücken, gemeint sind hier Betriebsdrücke von bis zu mehr als 2000 bar, auf den Einsatz eines aus dem Stand der Technik bekannten Diffusorabschnitts verzichtet werden kann, ohne dass dadurch Nachteile hinsichtlich der Kavitation bzw. des Materialabtrages im Bereich der Bohrung zu befürchten sind. Es wurde nämlich herausgefunden, dass mit eine Ursache für die Kavitation die Toleranzlage der einzelnen Abschnitte der Durchgangsbohrung zueinander ist, d.h., dass die optimale Wirkung eines Diffusorabschnitts nur bei einer hochgenauen Anordnung zu den anderen Abschnitten der Durchgangsbohrung, mit dem damit erforderlich hohen Fertigungs- und Kostenaufwand, erzielt wird. Dieser Vorteil lässt sich jedoch unter Beachtung einer kostengünstigen Fertigung in der Praxis nicht verwirklichen, so dass es die Erfindung ermöglicht, trotz Verzicht auf den Diffusorabschnitt eine über die Lebensdauer des Schaltventils zufriedenstellende Funktionsfähigkeit zu erzielen. Based on the illustrated prior art, the invention has the object, a switching valve according to the preamble of claim 1 such that it can be particularly simple and inexpensive to produce functionally favorable properties. This object is achieved with a switching valve with the features of claim 1, characterized in that adjoins the first, the throttle section forming portion of the through hole immediately the second, reaching to the valve seat portion without connecting the two sections, having a cylindrical portion intermediate portion. In other words, this means that, in contrast to the prior art, a diffuser section in the through-hole is completely dispensed with, so that the first section adjoins directly at the bottom of the second section. As a result, in particular the advantage is achieved that can be dispensed with an additional, separate production of the diffuser section, which reduces the manufacturing cost. In addition, a simpler production of the first section is possible by the axially closer to the valve seat zurückte position of the first portion (throttle portion). It has surprisingly been found by experiments and simulations that at the operating pressures under discussion, meaning here operating pressures of up to more than 2000 bar, can be dispensed with the use of a known from the prior art diffuser section without thereby disadvantages in terms Cavitation or material removal in the area of the hole are to be feared. It has been found that with a cause for the cavitation, the tolerance position of the individual sections of the through hole to each other, ie, that the optimum effect of a diffuser section only with a highly accurate arrangement to the other sections of the through hole, with the required high manufacturing and Cost, is achieved. However, this advantage can not be realized in practice, considering a cost-effective production, so that the invention makes it possible, despite dispensing with the diffuser section, to achieve satisfactory functioning over the life of the switching valve.
Vorteilhafte Weiterbildungen des erfindungsgemäßen Schaltventils sind in den Unteransprüchen angegeben. In den Rahmen der Erfindung fallen sämtliche Kombinationen aus zumindest zwei von in den Ansprüchen, der Beschreibung und/oder den Figuren offenbarten Merkmalen. Advantageous developments of the switching valve according to the invention are specified in the subclaims. All combinations of at least two of the features disclosed in the claims, the description and / or the figures fall within the scope of the invention.
Auch wenn die beiden Abschnitte in axialer Richtung unmittelbar aneinander anschließen, kann es vorgesehen sein, dass zwischen den beiden Abschnitten ein vorzugsweise kegelförmiger Übergangsbereich ausgebildet ist. Dieser kegelförmige Übergangsbereich ergibt sich üblicherweise allein schon durch die Herstellung des zweiten Abschnitts durch Bohren oder Erodieren. Even if the two sections directly adjoin one another in the axial direction, it can be provided that a preferably conical transition region is formed between the two sections. This conical transition region usually results solely from the production of the second section by drilling or erosion.
Besonders bevorzugt ist eine geometrische Dimensionierung der Abschnitte, bei der die Durchmesser des zweiten Abschnitts zwischen 1,0mm und 1,5mm, vorzugsweise zwischen 1,2mm und 1,4mm beträgt, und wobei der Durchmesser des ersten Abschnittes zwischen 0,15mm und 0,3mm bei einer Länge zwischen 0,5mm und 1,5mm beträgt. Particularly preferred is a geometric dimensioning of the sections, in which the The diameter of the second section is between 1.0mm and 1.5mm, preferably between 1.2mm and 1.4mm, and the diameter of the first section is between 0.15mm and 0.3mm with a length between 0.5mm and 1.5mm is.
Besonders bevorzugt ist der Einsatz des Schaltventils, bei der die Betätigung des Ventilschließelements mittels eines Elektromagneten erfolgt. Dies ermöglicht es, auf die aus dem Stand der Technik ebenfalls bekannten Piezo-Aktoren zu verzichten, wodurch sich ein relativ kostengünstiges Einspritzventil herstellen lässt. Particularly preferred is the use of the switching valve, in which the actuation of the valve closing element takes place by means of an electromagnet. This makes it possible to dispense with the piezo actuators also known from the prior art, whereby a relatively inexpensive injection valve can be produced.
Die Realisierung von Magnetventilen bei den angesprochenen hohen Betriebsdrücken erfordert vorzugsweise die Ausbildung des Schaltventils als zumindest nahezu druckausgeglichenes Ventil.The realization of solenoid valves at the mentioned high operating pressures preferably requires the formation of the switching valve as at least almost pressure-balanced valve.
Die Erfindung umfasst auch ein Verfahren zum Herstellen eines erfindungsgemäßen Schaltventils. Dabei ist es aus Gründen der hohen Maßhaltigkeit und Formgenauigkeit vorgesehen, dass das Ausbilden des ersten Abschnitts mittels eines Erodierverfahrens erfolgt. The invention also includes a method for producing a switching valve according to the invention. It is provided for reasons of high dimensional accuracy and dimensional accuracy that the formation of the first section by means of an erosion process takes place.
Ganz besonders bevorzugt ist es weiterhin, dass das Herstellen des zweiten Abschnitts durch Bohren, Laserbohren oder eine elektrochemische Materialbearbeitung (ECM) erfolgt. Es kann somit ein besonders einfaches bzw. kostengünstiges Herstellverfahren eingesetzt werden, dass darüber hinaus mit hoher Genauigkeit den zweiten Abschnitt ausbildet. Dies ermöglicht eventuell auch den Entfall des aus dem Stand der Technik noch notwendigen hydroerosieven Verrundens der A-Drossel zur Durchschlussmengeneinstellung, da Verfahren wie das ECM-Verfahren die Erzeugung und die Verrundung der A-Drossel in einem Arbeitsschritt ermöglichen. It is furthermore particularly preferred for the second section to be produced by drilling, laser drilling or electrochemical material processing (ECM). It can thus be used a particularly simple or cost-effective production method that also forms the second section with high accuracy. This possibly also makes it possible to omit the hydroerosive rounding of the A-throttle from the state of the art, which is necessary for setting the flow rate, since methods such as the ECM method enable the production and rounding of the A-throttle in one work step.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele sowie anhand der Zeichnung. Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawing.
Diese zeigt in:This shows in:
Gleiche Bauteile, bzw. Bauteile mit gleicher Funktion sind in den Figuren mit den gleichen Bezugsziffern versehen. The same components or components with the same function are provided in the figures with the same reference numerals.
In der
Um das Ventilschließelement
Zur axialen Führung des Magnetankers
Das zur Ausbildung des Ventilsitzes
Wie insbesondere anhand der
Der zweite Abschnitt
Beim Abströmen des Kraftstoffs durch die Bohrung
Das soweit beschriebene Schaltventil
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES 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 of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102010028844 A1 [0002] DE 102010028844 A1 [0002]
Claims (8)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201110078346 DE102011078346A1 (en) | 2011-06-29 | 2011-06-29 | Switching valve, method for manufacturing a switching valve and fuel injector with a switching valve |
| EP12169074A EP2541036A1 (en) | 2011-06-29 | 2012-05-23 | Switching valve, method for producing a switching valve and fuel injector with a switching valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201110078346 DE102011078346A1 (en) | 2011-06-29 | 2011-06-29 | Switching valve, method for manufacturing a switching valve and fuel injector with a switching valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102011078346A1 true DE102011078346A1 (en) | 2013-01-03 |
Family
ID=46168229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE201110078346 Withdrawn DE102011078346A1 (en) | 2011-06-29 | 2011-06-29 | Switching valve, method for manufacturing a switching valve and fuel injector with a switching valve |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2541036A1 (en) |
| DE (1) | DE102011078346A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017207256A1 (en) | 2016-06-03 | 2017-12-07 | Robert Bosch Gmbh | Solenoid valve and fuel injector having a solenoid valve |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015211043A1 (en) * | 2015-06-16 | 2016-12-22 | Robert Bosch Gmbh | Fuel injection valve for internal combustion engines |
| CN105673282B (en) * | 2016-04-08 | 2018-05-18 | 龙口龙泵燃油喷射有限公司 | Pressure balance valve type common-rail injector |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010028844A1 (en) | 2010-05-11 | 2011-11-17 | Robert Bosch Gmbh | switching valve |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005053133A1 (en) * | 2005-11-08 | 2007-05-10 | Robert Bosch Gmbh | Fuel injector for injecting fuel in combustion chamber of internal combustion engine, consists of closing body which has closing element, which has opening increasing pressure level at seat of closing element |
| DE102007044356A1 (en) * | 2007-09-17 | 2009-03-19 | Robert Bosch Gmbh | injector |
| DE102007047151A1 (en) * | 2007-10-02 | 2009-04-09 | Robert Bosch Gmbh | Injector with control valve sleeve |
| FR2923406A3 (en) * | 2007-11-08 | 2009-05-15 | Renault Sas | HYDROEROSION PROCESS WITH DOUBLE SENSE OF A HOLE THROUGH A METALLIC WALL. |
| CN101909808B (en) * | 2008-01-17 | 2014-04-30 | 本田技研工业株式会社 | Laser processing device and laser processing method |
| DE102008001913A1 (en) * | 2008-05-21 | 2009-11-26 | Robert Bosch Gmbh | Fuel injector |
-
2011
- 2011-06-29 DE DE201110078346 patent/DE102011078346A1/en not_active Withdrawn
-
2012
- 2012-05-23 EP EP12169074A patent/EP2541036A1/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010028844A1 (en) | 2010-05-11 | 2011-11-17 | Robert Bosch Gmbh | switching valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017207256A1 (en) | 2016-06-03 | 2017-12-07 | Robert Bosch Gmbh | Solenoid valve and fuel injector having a solenoid valve |
| DE102016209813A1 (en) | 2016-06-03 | 2017-12-07 | Robert Bosch Gmbh | Solenoid valve and fuel injector with a solenoid valve |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2541036A1 (en) | 2013-01-02 |
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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: 20140101 |