DE102009027146A1 - Fuel high-pressure pump for fuel system of internal combustion engine, has suction side low pressure area, in which overflow valve is arranged, where overflow valve has valve housing with inlet, outlet, valve body and valve spring - Google Patents
Fuel high-pressure pump for fuel system of internal combustion engine, has suction side low pressure area, in which overflow valve is arranged, where overflow valve has valve housing with inlet, outlet, valve body and valve spring Download PDFInfo
- Publication number
- DE102009027146A1 DE102009027146A1 DE200910027146 DE102009027146A DE102009027146A1 DE 102009027146 A1 DE102009027146 A1 DE 102009027146A1 DE 200910027146 DE200910027146 DE 200910027146 DE 102009027146 A DE102009027146 A DE 102009027146A DE 102009027146 A1 DE102009027146 A1 DE 102009027146A1
- Authority
- DE
- Germany
- Prior art keywords
- valve
- housing
- pump
- overflow
- fuel
- 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- Withdrawn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 38
- 238000002485 combustion reaction Methods 0.000 title description 5
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000002991 molded plastic Substances 0.000 claims abstract description 3
- 239000004033 plastic Substances 0.000 claims description 4
- 239000006228 supernatant Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- 238000007906 compression Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010959 steel Substances 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/46—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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/445—Selection of particular materials
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/48—Assembling; Disassembling; Replacing
-
- 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
- F02M2200/8053—Fuel injection apparatus manufacture, repair or assembly involving mechanical deformation of the apparatus or parts thereof
-
- 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
- F02M2200/8061—Fuel injection apparatus manufacture, repair or assembly involving press-fit, i.e. interference or friction fit
-
- 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
- F02M2200/90—Selection of particular materials
- F02M2200/9015—Elastomeric or plastic materials
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 vorliegende Erfindung betrifft eine Kraftstoff-Hochdruckpumpe mit einem saugseitigen Niederdruckbereich, in dem ein Überströmventil angeordnet ist, welches ein in einem Pumpengehäuse befestigtes Ventilgehäuse mit einem Einlass, einem Auslass, einem Ventilkörper und einer Ventilfeder aufweist. Außerdem betrifft die Erfindung ein Verfahren zur Herstellung einer solchen Kraftstoff-Hochdruckpumpe.The The present invention relates to a high-pressure fuel pump with a suction-side low-pressure region in which an overflow valve is arranged, which has a fixed in a pump housing valve housing an inlet, an outlet, a valve body and a valve spring. Furthermore The invention relates to a method for producing such High-pressure fuel pump.
Im Stand der Technik ist eine Common-Rail-Pumpe beschrieben, in deren ansaugseitigem Niederdruckbereich ein Kraftstoff-Überströmventil zur Druckbegrenzung angebracht ist. Das Überströmventil ist dabei mit einem Gewinde im Pumpengehäuse montiert.in the Prior art is described a common rail pump, in whose Ansaugseitigem low pressure area a fuel spill valve attached to limit the pressure. The overflow valve is with a Thread in the pump housing assembled.
Offenbarung der ErfindungDisclosure of the invention
Ausgehend vom vorliegenden Stand der Technik liegt der vorliegenden Erfindung die Aufgabe zugrunde, eine bekannte Kraftstoff-Hochdruckpumpe dahingehend auszugestalten, dass sie auf möglichst einfache und kostengünstige Weise hergestellt werden kann. Diese Aufgabe wird bei der Kraftstoff-Hochdruckpumpe gemäß dem Oberbegriff des Anspruchs 1 dadurch gelöst, dass das Ventilgehäuse des Überströmventils im Pumpengehäuse verpresst und/oder verstemmt ist. Weiterbildungen der Erfindung sind in Unteransprüchen angegeben. Für die Erfindung wichtige Merkmale finden sich darüber hinaus in der nachfolgenden Beschreibung und in der Zeichnung. Die Merkmale können sowohl in Alleinstellung als auch in unterschiedlichen Kombinationen für die Erfindung wichtig sein, ohne dass hierauf nochmals explizit hingewiesen wird.outgoing The present invention is based on the present state of the art the object of a known fuel high-pressure pump to the effect to design that they are as simple as possible and cost-effective Way can be made. This task is the fuel high-pressure pump according to the generic term of claim 1 solved thereby that the valve housing of the overflow valve in the pump housing pressed and / or caulked. Further developments of the invention are in dependent claims specified. For the invention important features are also found in the following Description and in the drawing. The features can both in isolation as well as in different combinations for the invention be important, without being explicitly mentioned again.
Erfindungsgemäß wird auf die Verwendung eines Gewindes verzichtet, so dass die Außenform des Ventilgehäuses des Überströmventils ohne Außengewinde flexibler gestaltet und das Ventilgehäuse kostengünstig hergestellt werden kann. Ebenso kann auf ein Innengewinde für das Ventilgehäuse am Pumpengehäuse der Kraftstoff-Hochdruckpumpe verzichtet werden. Das Verstemmen bzw. Verpressen des Überströmventils mit dem Pumpengehäuse stellt ein kostengünstiges Verfahren dar, das eine sichere, unlösbare und zuverlässig abgedichtete Verbindung des Überströmventils mit dem Pumpengehäuse der Kraftstoffhochdruckpumpe ermöglicht.According to the invention dispenses with the use of a thread, so that the outer shape of the valve housing the overflow valve without external thread designed more flexible and the valve body can be produced inexpensively. Likewise, on an internal thread for the valve housing on the pump housing the High-pressure fuel pump can be dispensed with. The caulking or Pressing the overflow valve with the pump housing a cost-effective A process that provides a safe, unsolvable and reliable sealed Connection of the overflow valve with the pump housing the high-pressure fuel pump allows.
Gemäß einer vorteilhaften Weiterbildung der Erfindung wird vorgeschlagen, dass das Ventilgehäuse des Überströmventils eine gerade zylindrische Außenform aufweist. Eine solche Geometrie ermöglicht im Rahmen der Fertigung des Ventils einfache Herstellungsprozesse. Außerdem ist das Ventilgehäuse dadurch auf einfache Weise formschlüssig in eine entsprechende Bohrung am Pumpengehäuse einsetzbar. Wird das Ventilgehäuse mit dem Pumpengehäuse verpresst, so kann bei einer entsprechenden Übermaßpassung auf ein zusätzliches Verstemmen des Überströmventils verzichtet werden.According to one advantageous development of the invention it is proposed that the valve housing the overflow valve a straight cylindrical outer shape having. Such geometry allows in the context of manufacturing the valve simple manufacturing processes. In addition, the valve housing is characterized in a simple manner positive fit can be used in a corresponding bore on the pump housing. Will the valve housing with the pump housing compressed, so can with an appropriate interference fit to an additional Caulking of the overflow valve be waived.
Gemäß einer weiteren Ausführungsform weist das Ventilgehäuse an jenem Ende, an dem es mit dem Pumpengehäuse verstemmt wird, einen zentrischen Überstand auf. Dieser kreisförmige Überstand dient im Rahmen des Verstemmungsvorgangs als Zentrierspitze, die dem Material eine Verformungsrichtung vorgibt. Der Überstand kann auch eckig ausgestaltet sein, um einer Rotation des montierten Ventilgehäuses um die eigene Längsachse im Betrieb entgegen zu wirken. Darüber hinaus kann der zentrische Überstand dazu dienen, den Verfahrweg eines zum Verstemmen verwendeten Stempels beim Verstemmen zu begrenzen. Im Rahmen des Verpressungsvorgangs kann er als Auflagefläche für den Stempel dienen.According to one further embodiment the valve housing At the end where it is caulked with the pump housing, a centric projection on. This circular overhang used in the caulking process as a centering tip, the the material specifies a deformation direction. The supernatant can also be configured angularly to a rotation of the mounted valve housing around its own longitudinal axis to counteract during operation. In addition, the centric supernatant serve to the travel of a stamp used for caulking to limit the caulking. As part of the compression process he can as a support surface for the stamp serve.
Vorzugsweise ist das Ventilgehäuse ein Drehteil. Durch den Einsatz von CNC-Drehmaschinen oder Bearbeitungszentren können genau gedrehte Bauteile im Rahmen einer Massenproduktion preiswert gefertigt werden.Preferably is the valve body a turned part. Through the use of CNC lathes or machining centers can accurately turned components in a mass production reasonably priced be made.
Vorteilhafterweise ist das Überströmventilgehäuse durch ein Umformverfahren, insbesondere durch Tiefziehen, hergestellt. Das Tiefziehen des Ventilgehäuses ermöglicht eine präzise Formgebung und eine kostengünstige Serienfertigung.advantageously, is the spill valve housing through a forming process, in particular by deep drawing produced. The deep drawing of the valve housing allows a precise one Shaping and a cost-effective Series production.
Gemäß einer anderen vorteilhaften Ausgestaltung der Erfindung wird vorgeschlagen, dass das Ventilgehäuse ein spritzgegossenes Kunststoffteil ist. Durch das Spritzgießen von Kunststoff lassen sich genaue Formteile von sehr geringem Gewicht herstellen. Vorzugsweise ist der verwendete Kunststoff gleitoptimiert, damit das Gehäuse reibungsfrei in eine entsprechende Bohrung im Pumpengehäuse eingesetzt werden kann.According to one another advantageous embodiment of the invention is proposed that the valve housing an injection-molded plastic part is. By injection molding of Plastic can be accurate moldings of very low weight produce. Preferably, the plastic used is slid optimized, with it the case frictionless inserted into a corresponding bore in the pump housing can be.
Vorteilhafterweise stützt sich die Ventilfeder an einem in das Ventilgehäuse eingepressten Gegenhalter ab. Der Gegenhalter kann innerhalb des Ventilgehäuses in axialer Richtung verstellbar ausgebildet sein und so die Position des Ventilkörpers im Ventilgehäuse vorgeben.advantageously, supports the valve spring on a pressed into the valve body counterholder from. The anvil can be adjusted within the valve housing in the axial direction be formed and thus specify the position of the valve body in the valve housing.
Offenbarung der ErfindungDisclosure of the invention
Ausführungsbeispiele der vorliegenden Erfindung werden nachfolgend anhand der Figuren näher erläutert. Es zeigen:embodiments The present invention will be described below with reference to FIGS explained in more detail. It demonstrate:
Vorab ist anzumerken, dass funktionsäquivalente Teile in allen Figuren der Zeichnung jeweils mit den gleichen Ziffern gekennzeichnet sind und nicht jedes Mal erneut beschrieben sind.advance It should be noted that functionally equivalent Parts in all figures of the drawing, each with the same numbers and are not described again each time.
Ein
wichtiger Aspekt des Überströmventils
Anschließend wird
das Überströmventil
Für einen
besonders sicheren Halt und um einer möglichen Drehbewegung des Überströmventils
Das
Ventilgehäuse
Die
Erfindung ermöglicht
somit auf einfache und kostengünstige
Weise die Integration des Überströmventils
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200910027146 DE102009027146A1 (en) | 2009-06-24 | 2009-06-24 | Fuel high-pressure pump for fuel system of internal combustion engine, has suction side low pressure area, in which overflow valve is arranged, where overflow valve has valve housing with inlet, outlet, valve body and valve spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200910027146 DE102009027146A1 (en) | 2009-06-24 | 2009-06-24 | Fuel high-pressure pump for fuel system of internal combustion engine, has suction side low pressure area, in which overflow valve is arranged, where overflow valve has valve housing with inlet, outlet, valve body and valve spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102009027146A1 true DE102009027146A1 (en) | 2010-12-30 |
Family
ID=43217657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE200910027146 Withdrawn DE102009027146A1 (en) | 2009-06-24 | 2009-06-24 | Fuel high-pressure pump for fuel system of internal combustion engine, has suction side low pressure area, in which overflow valve is arranged, where overflow valve has valve housing with inlet, outlet, valve body and valve spring |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102009027146A1 (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011089964A1 (en) | 2011-12-27 | 2013-06-27 | Robert Bosch Gmbh | Pressure control valve for common-rail injection system utilized in internal combustion engine, has valve element comprising edges that work together with bores of housing such that releasing of one of bores causes closing of another bore |
| DE102012200909A1 (en) | 2012-01-23 | 2013-07-25 | Robert Bosch Gmbh | High-pressure fuel pump of an injection system |
| DE102012200894A1 (en) | 2012-01-23 | 2013-07-25 | Robert Bosch Gmbh | High-pressure fuel pump of an injection system |
| DE102012203722A1 (en) | 2012-03-09 | 2013-09-12 | Robert Bosch Gmbh | Pressure relief valve for fuel injection system, has spring element mounted in spring chamber of valve housing such that the spring element is non-positively and/or positively connected with valve element and/or with adjusting element |
| WO2013164117A1 (en) | 2012-05-04 | 2013-11-07 | Robert Bosch Gmbh | High-pressure fuel pump |
| DE102012212756A1 (en) | 2012-07-20 | 2014-01-23 | Robert Bosch Gmbh | Relief valve for high-pressure fuel pump, has piston that is displaceable from closed position into opening direction in inlet with outlet connecting outlet openings, and outflow holes are located on piston |
| WO2014121870A1 (en) * | 2013-02-06 | 2014-08-14 | Robert Bosch Gmbh | Valve |
| DE102013208707A1 (en) | 2013-05-13 | 2014-11-13 | Robert Bosch Gmbh | Overflow valve for a high pressure pump in a fuel injection system |
| WO2014198442A1 (en) * | 2013-06-10 | 2014-12-18 | Robert Bosch Gmbh | High-pressure fuel pump for a fuel system of an internal combustion engine |
| DE102013212391A1 (en) * | 2013-06-27 | 2014-12-31 | Robert Bosch Gmbh | Control valve for a common rail injection system |
| ITMI20132214A1 (en) * | 2013-12-27 | 2015-06-28 | Bosch Gmbh Robert | HIGH PRESSURE PRESSURE VALVE FOR A HIGH PRESSURE COMMON RAIL PUMP AND HIGH PRESSURE COMMON RAIL PUMP |
| US9188415B2 (en) | 2011-04-21 | 2015-11-17 | Rwm Schweiz Ag | Device and method for airtight covering of a tracer or the like |
| DE102016217077A1 (en) | 2016-09-08 | 2018-03-08 | Robert Bosch Gmbh | Overflow valve, in particular for use in a fuel injection system, high-pressure pump and fuel injection system |
| WO2018050609A1 (en) | 2016-09-16 | 2018-03-22 | Robert Bosch Gmbh | Overflow valve, in particular for use in a fuel injection system, high-pressure pump, and fuel injection system |
-
2009
- 2009-06-24 DE DE200910027146 patent/DE102009027146A1/en not_active Withdrawn
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9188415B2 (en) | 2011-04-21 | 2015-11-17 | Rwm Schweiz Ag | Device and method for airtight covering of a tracer or the like |
| DE102011089964A1 (en) | 2011-12-27 | 2013-06-27 | Robert Bosch Gmbh | Pressure control valve for common-rail injection system utilized in internal combustion engine, has valve element comprising edges that work together with bores of housing such that releasing of one of bores causes closing of another bore |
| DE102012200909A1 (en) | 2012-01-23 | 2013-07-25 | Robert Bosch Gmbh | High-pressure fuel pump of an injection system |
| DE102012200894A1 (en) | 2012-01-23 | 2013-07-25 | Robert Bosch Gmbh | High-pressure fuel pump of an injection system |
| WO2013110513A1 (en) | 2012-01-23 | 2013-08-01 | Robert Bosch Gmbh | High-pressure fuel pump for an injection system |
| WO2013110514A1 (en) | 2012-01-23 | 2013-08-01 | Robert Bosch Gmbh | High-pressure fuel pump for an injection system |
| DE102012203722A1 (en) | 2012-03-09 | 2013-09-12 | Robert Bosch Gmbh | Pressure relief valve for fuel injection system, has spring element mounted in spring chamber of valve housing such that the spring element is non-positively and/or positively connected with valve element and/or with adjusting element |
| WO2013164117A1 (en) | 2012-05-04 | 2013-11-07 | Robert Bosch Gmbh | High-pressure fuel pump |
| DE102012207431A1 (en) | 2012-05-04 | 2013-11-07 | Robert Bosch Gmbh | High-pressure fuel pump |
| CN104271939B (en) * | 2012-05-04 | 2017-06-13 | 罗伯特·博世有限公司 | High-pressure fuel pump |
| DE102012212756A1 (en) | 2012-07-20 | 2014-01-23 | Robert Bosch Gmbh | Relief valve for high-pressure fuel pump, has piston that is displaceable from closed position into opening direction in inlet with outlet connecting outlet openings, and outflow holes are located on piston |
| WO2014121870A1 (en) * | 2013-02-06 | 2014-08-14 | Robert Bosch Gmbh | Valve |
| DE102013208707A1 (en) | 2013-05-13 | 2014-11-13 | Robert Bosch Gmbh | Overflow valve for a high pressure pump in a fuel injection system |
| WO2014183904A1 (en) | 2013-05-13 | 2014-11-20 | Robert Bosch Gmbh | Overflow valve for a high pressure pump in a fuel injection system |
| WO2014198442A1 (en) * | 2013-06-10 | 2014-12-18 | Robert Bosch Gmbh | High-pressure fuel pump for a fuel system of an internal combustion engine |
| DE102013212391A1 (en) * | 2013-06-27 | 2014-12-31 | Robert Bosch Gmbh | Control valve for a common rail injection system |
| ITMI20132214A1 (en) * | 2013-12-27 | 2015-06-28 | Bosch Gmbh Robert | HIGH PRESSURE PRESSURE VALVE FOR A HIGH PRESSURE COMMON RAIL PUMP AND HIGH PRESSURE COMMON RAIL PUMP |
| DE102016217077A1 (en) | 2016-09-08 | 2018-03-08 | Robert Bosch Gmbh | Overflow valve, in particular for use in a fuel injection system, high-pressure pump and fuel injection system |
| WO2018050609A1 (en) | 2016-09-16 | 2018-03-22 | Robert Bosch Gmbh | Overflow valve, in particular for use in a fuel injection system, high-pressure pump, and fuel injection system |
| DE102017212003A1 (en) | 2016-09-16 | 2018-03-22 | Robert Bosch Gmbh | Overflow valve, in particular for use in a fuel injection system, high-pressure pump and fuel injection system |
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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 | ||
| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20150101 |