DE102009046082A1 - Electromagnetically operated quantity control valve, particularly for controlling output of fuel-high pressure pump, comprises movement space and moving part of electromagnetic actuating device which is arranged in movement space - Google Patents
Electromagnetically operated quantity control valve, particularly for controlling output of fuel-high pressure pump, comprises movement space and moving part of electromagnetic actuating device which is arranged in movement space Download PDFInfo
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- DE102009046082A1 DE102009046082A1 DE200910046082 DE102009046082A DE102009046082A1 DE 102009046082 A1 DE102009046082 A1 DE 102009046082A1 DE 200910046082 DE200910046082 DE 200910046082 DE 102009046082 A DE102009046082 A DE 102009046082A DE 102009046082 A1 DE102009046082 A1 DE 102009046082A1
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- moving part
- control valve
- quantity control
- movement space
- electromagnetically operated
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- 230000002093 peripheral effect Effects 0.000 claims description 10
- 239000000446 fuel Substances 0.000 claims description 9
- 239000012530 fluid Substances 0.000 description 13
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 230000007704 transition Effects 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
- 230000001133 acceleration Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000011144 upstream manufacturing 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
- 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
- F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means
- F02M63/0021—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means characterised by the arrangement of mobile armatures
-
- 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
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
- F02M59/366—Valves being actuated electrically
-
- 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
- F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/09—Fuel-injection apparatus having means for reducing noise
-
- 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
- F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped
- F02M2200/304—Fuel-injection apparatus having mechanical parts, the movement of which is damped using hydraulic means
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
Description
Stand der TechnikState of the art
Die Erfindung betrifft ein elektromagnetisch betätigtes Mengensteuerventil nach dem Oberbegriff des Anspruchs 1.The invention relates to an electromagnetically actuated quantity control valve according to the preamble of
Vom Markt her bekannt sind Mengensteuerventile, welche ein elektromagnetisch betätigtes Ventilelement aufweisen. Damit wird die einer Hochdruckpumpe zugeführte Kraftstoffmenge im Kraftstoffsystem einer Brennkraftmaschine bemessen. Ebenfalls bekannt ist es, einen Anker des Elektromagneten beispielsweise mit Längsbohrungen zu versehen, um die bei der Bewegung des Ankers auftretende Dämpfung einstellen zu können. Durch solche axialen Bohrungen im Anker wird Fluid, also Kraftstoff, von einer axialen Seite des Ankers zur anderen Seite befördert. Durch die Größe und die Anzahl der Bohrungen kann die fluidische Dämpfung eingestellt werden. Alternativ zu einer axialen Bohrung im Anker ist es ebenfalls bekannt, an einer Umfangswand des Ankers axiale Nuten anzubringen, welche ebenfalls einen Fluidaustausch zwischen den beiden Seiten des Ankers ermöglichen.From the market known quantity control valves, which have an electromagnetically actuated valve element. Thus, the amount of fuel supplied to a high-pressure pump is measured in the fuel system of an internal combustion engine. It is also known to provide an armature of the electromagnet, for example, with longitudinal bores in order to adjust the damping occurring during the movement of the armature can. Through such axial bores in the armature fluid, so fuel, transported from one axial side of the armature to the other side. Due to the size and the number of holes, the fluidic damping can be adjusted. As an alternative to an axial bore in the armature, it is also known to provide axial grooves on a peripheral wall of the armature, which also allow a fluid exchange between the two sides of the armature.
Des weiteren wird auf folgende Veröffentlichungen verwiesen:
Offenbarung der ErfindungDisclosure of the invention
Das der Erfindung zugrunde liegende Problem wird durch ein elektromagnetisch betätigtes Mengensteuerventil nach Anspruch 1 gelöst. Vorteilhafte Weiterbildungen sind in Unteransprüchen angegeben. Für die Erfindung wichtige Merkmale finden sich ferner in der nachfolgenden Beschreibung und in den Zeichnungen, wobei die Merkmale sowohl in Alleinstellung als auch in unterschiedlichen Kombinationen für die Erfindung wichtig sein können, ohne dass hierauf nochmals explizit hingewiesen wird.The problem underlying the invention is achieved by an electromagnetically actuated quantity control valve according to
Ein Vorteil der Erfindung ist es, dass eine Endgeschwindigkeit der Bewegung des Bewegungsteils, bei dem es sich im allgemeinen um einen starr mit einer Ventilnadel gekoppelten und in einem den Bewegungsraum bildenden Ankerraum aufgenommenen Anker des Mengensteuerventils handeln dürfte, beim Öffnen und Schließen des Mengensteuerventils verringert wird. Damit kann eine Anregung mechanischer Schwingungen beim Anschlagen des Bewegungsteils, beziehungsweise der mit dem Bewegungsteil verbundenen Ventilnadel reduziert werden. Damit wird zugleich eine Körperschallanregung und damit die Schallabstrahlung des Mengensteuerventils insgesamt vermindert.An advantage of the invention is that a final speed of movement of the moving part, which is generally likely to be an armature of the quantity control valve coupled rigidly to a valve needle and received in an armature space forming the moving space, is reduced when the quantity control valve is opened and closed , This can be reduced excitation of mechanical vibrations when hitting the moving part, or connected to the moving part valve needle. At the same time, a structure-borne sound excitation and thus the sound radiation of the quantity control valve are reduced overall.
Die Erfindung geht von der Erkenntnis aus, dass axiale Kanäle in einem Bewegungsteil oder am Umfang des Bewegungsteils einen zur Fluidgeschwindigkeit proportionalen hydraulischen Widerstand darstellen. Davon ausgehend wird durch einen Durchmessersprung im axialen Verlauf des mindestens einen Kanals ein im Wesentlichen nichtlinearer, vorzugsweise quadratischer Zusammenhang zwischen der Bewegungsgeschwindigkeit des Bewegungsteils und dem Strömungswiderstand im Kanal geschaffen. Dabei kann dieser Zusammenhang nach der Art eines Polynoms sowohl lineare als auch quadratische Anteile aufweisen. Ausgehend von einem Vorzustand mit einem im axialen Verlauf konstanten Querschnitt des mindestens einen Kanals wird beispielsweise ein Teilabschnitt des mindestens einen Kanals in seinem Querschnitt vergrößert, und ein weiterer Teilabschnitt in seinem Querschnitt verkleinert. Der Übergang weist also einen Durchmessersprung auf. Damit ist der Zusammenhang zwischen der Bewegungsgeschwindigkeit des Bewegungsteils und dem Strömungswiderstand nicht mehr nur linear, sondern besitzt einen wesentlichen quadratischen Anteil. Wegen des abschnittsweise vergrößerten Querschnitts kann der lineare Anteil in Bezug auf den Vorzustand sogar kleiner sein. Wichtig ist, dass der durch den mindestens einen Kanal fließende Fluidstrom möglichst groß ist im Vergleich zu dem Anteil des Fluids, der durch einen zwischen der Umfangswand des Bewegungsteils und dem Bewegungsraum gebildeten Ringspalt fließt. Insgesamt ergibt sich, dass der hydraulische Widerstand, den das Bewegungsteil bei seiner Bewegung erfährt, bei geringen Fluidgeschwindigkeiten vergleichsweise niedrig ist, während er bei hohen Fluidgeschwindigkeiten stark ansteigt. Die Fluidgeschwindigkeit und die Geschwindigkeit des Bewegungsteils sind zueinander im Wesentlichen proportional.The invention is based on the recognition that axial channels in a moving part or on the circumference of the moving part represent a hydraulic resistance proportional to the fluid velocity. Based on this, a substantially non-linear, preferably quadratic relationship between the speed of movement of the moving part and the flow resistance in the channel is created by a diameter jump in the axial course of the at least one channel. In this case, this relationship can have both linear and quadratic components in the manner of a polynomial. Starting from a preliminary state with a constant in the axial course of the cross section of the at least one channel, for example, a portion of the at least one channel is increased in its cross-section, and reduced a further section in its cross section. The transition thus has a diameter jump. Thus, the relationship between the speed of movement of the moving part and the flow resistance is no longer only linear, but has a significant square component. Because of the sectionally enlarged cross-section, the linear component may even be smaller in relation to the preliminary state. It is important that the fluid flow flowing through the at least one channel is as large as possible in comparison to the proportion of the fluid flowing through an annular gap formed between the peripheral wall of the moving part and the movement space. Overall, it follows that the hydraulic resistance experienced by the moving part in its movement, at low fluid velocities is relatively low, while it rises sharply at high fluid velocities. The fluid velocity and the speed of the moving part are substantially proportional to each other.
Abhängig von den spezifischen Eigenschaften eines Mengensteuerventils kann durch die veränderte Geometrie des mindestens einen Kanals eine Verkürzung der Anzugszeit des elektromagnetisch betätigten Ventils erreicht werden. Dabei wird auch die Anschlagsgeschwindigkeit des Bewegungsteils bzw. des Ankers oder des Ventilelements an einem Anschlag ebenso wie eine akustische Anregung oder mechanische Belastung verringert.Depending on the specific properties of a quantity control valve, a shortening of the operating time of the electromagnetically actuated valve can be achieved by the changed geometry of the at least one channel. In this case, the velocity of attack of the moving part or of the armature or the valve element is reduced at a stop as well as an acoustic stimulus or mechanical stress.
Eine erste Ausgestaltung des elektromagnetisch betätigten Mengensteuerventils sieht vor, dass mindestens ein Kanal durch eine axiale Bohrung im Bewegungsteil gebildet wird. Damit wird vorteilhaft die Herstellung des Bewegungsteils vereinfacht und damit das Mengensteuerventil verbilligt, was insbesondere dann der Fall ist, wenn es sich bei dem Bewegungsteil um den Anker handelt.A first embodiment of the solenoid-operated quantity control valve provides that at least one channel is formed by an axial bore in the moving part. Thus, the production of the moving part is advantageously simplified and thus the quantity control valve is cheaper, which is the case in particular when the moving part is the armature.
Eine weitere Ausgestaltung der Erfindung sieht vor, dass mindestens ein Kanal durch eine Nut in einer Umfangswand des Bewegungsteils oder des Bewegungsraums gebildet wird. Damit ergeben sich grundsätzlich vier Möglichkeiten, um Fluid von der einen axialen Seite des Bewegungsteils auf die andere Seite zu übertragen. Einmal durch den Ringspalt, welcher zwischen dem kreisförmigen Umfang des Bewegungsteils (Umfangswand) und der Wand des Bewegungsraums gebildet wird. Zum Zweiten durch mindesten einen axialen Kanal im Bewegungsteil, zum Dritten durch mindestens eine axiale Nut in der Umfangswand des Bewegungsteils, und viertens durch mindestens eine axiale Nut in der Umfangswand des Bewegungsraums. Diese vier Möglichkeiten können auch miteinander kombiniert sein. Eine Nut in der Umfangswand des Bewegungsraums hat den Vorteil, dass die Geometrie unabhängig von dem Bewegungsteil gestaltet werden kann. Beispielsweise werden die magnetischen Eigenschaften eines Ankers dadurch nicht beeinträchtigt. Weiterhin ergibt sich eine einfachere Wartung und Montage des Bewegungsteils beziehungsweise des Mengensteuerventils. A further embodiment of the invention provides that at least one channel is formed by a groove in a peripheral wall of the moving part or the movement space. This results in basically four ways to transfer fluid from one axial side of the moving part to the other side. Once through the annular gap, which is formed between the circular periphery of the moving part (peripheral wall) and the wall of the movement space. Secondly by at least one axial channel in the moving part, thirdly by at least one axial groove in the peripheral wall of the moving part, and fourth by at least one axial groove in the peripheral wall of the movement space. These four options can also be combined with each other. A groove in the peripheral wall of the movement space has the advantage that the geometry can be designed independently of the movement part. For example, the magnetic properties of an anchor are not affected thereby. Furthermore, there is easier maintenance and installation of the moving part or the quantity control valve.
Die Erfindung arbeitet besonders wirkungsvoll, wenn der Durchmessersprung schlagartig erfolgt. Dieser kann beispielsweise durch eine Stufenbohrung ausgeführt sein. Daraus ergibt sich für die Bewegung des Bewegungsteils eine besonders starke Nichtlinearität des hydraulischen Widerstands in Abhängigkeit der Geschwindigkeit des Bewegungsteils.The invention works particularly effective when the diameter jump occurs abruptly. This can be carried out for example by a stepped bore. This results in a particularly strong nonlinearity of the hydraulic resistance as a function of the speed of the moving part for the movement of the moving part.
Ergänzend wird vorgeschlagen, dass der Durchmessersprung eine scharfkantige konische Durchmesseränderung umfasst. Damit wird die Möglichkeit, den Durchmessersprung auszulegen, vorteilhaft erweitert. Insbesondere wird bei einem scharfkantigen konischen Durchmessersprung die Kavitation verringert, und entsprechend wird ein hydraulischer Verschleiß gesenkt.In addition, it is proposed that the diameter jump comprises a sharp-edged conical diameter change. This advantageously expands the possibility of designing the diameter jump. In particular, in a sharp-edged conical diameter jump cavitation is reduced, and accordingly a hydraulic wear is reduced.
Die verschiedenen Ausgestaltungen des Durchmessersprungs betreffen Bohrungen und Nuten gleichermaßen. Bei Nuten wird der Durchmessersprung durch eine Stufe bzw. durch einen konusähnlichen Übergang gebildet.The various configurations of the diameter jump relate to holes and grooves alike. For grooves, the diameter jump is formed by a step or by a cone-like transition.
Nachfolgend werden beispielhafte Ausführungsformen der Erfindung unter Bezugnahme auf die Zeichnung erläutert. In der Zeichnung zeigen:Hereinafter, exemplary embodiments of the invention will be explained with reference to the drawings. In the drawing show:
Es werden für funktionsäquivalente Elemente und Größen in allen Figuren auch bei unterschiedlichen Ausführungsformen die gleichen Bezugszeichen verwendet.The same reference numerals are used for functionally equivalent elements and sizes in all figures, even in different embodiments.
Beim Betrieb des Kraftstoffsystems
Die in der
In der in
Durch den Durchmessersprung
Es versteht sich, dass die geschwindigkeitsabhängige Drosselung nicht zwingend am Anker statt finden muss, sondern auch an einem anderen mit dem Ventilelement gekoppelten Bewegungselement.It is understood that the speed-dependent throttling does not necessarily have to take place at the armature, but also at another with the valve element coupled movement element.
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 102007034038 A1 [0003] DE 102007034038 A1 [0003]
- DE 102007028960 A1 [0003] DE 102007028960 A1 [0003]
- DE 102005022661 A1 [0003] DE 102005022661 A1 [0003]
- DE 102004061798 A1 [0003] DE 102004061798 A1 [0003]
- DE 2004016554 A1 [0003] DE 2004016554 A1 [0003]
- DE 10327411 A1 [0003] DE 10327411 A1 [0003]
- DE 19834121 A1 [0003] DE 19834121 A1 [0003]
- EP 1701031 A1 [0003] EP 1701031 A1 [0003]
- EP 1471248 A1 [0003] EP 1471248 A1 [0003]
- EP 1296061 A2 [0003] EP 1296061 A2 [0003]
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910046082 DE102009046082A1 (en) | 2009-10-28 | 2009-10-28 | Electromagnetically operated quantity control valve, particularly for controlling output of fuel-high pressure pump, comprises movement space and moving part of electromagnetic actuating device which is arranged in movement space |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910046082 DE102009046082A1 (en) | 2009-10-28 | 2009-10-28 | Electromagnetically operated quantity control valve, particularly for controlling output of fuel-high pressure pump, comprises movement space and moving part of electromagnetic actuating device which is arranged in movement space |
Publications (1)
Publication Number | Publication Date |
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DE102009046082A1 true DE102009046082A1 (en) | 2011-05-12 |
Family
ID=43852661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200910046082 Withdrawn DE102009046082A1 (en) | 2009-10-28 | 2009-10-28 | Electromagnetically operated quantity control valve, particularly for controlling output of fuel-high pressure pump, comprises movement space and moving part of electromagnetic actuating device which is arranged in movement space |
Country Status (1)
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DE (1) | DE102009046082A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013092019A1 (en) * | 2011-12-20 | 2013-06-27 | Robert Bosch Gmbh | Quantity control valve and high-pressure pump with quantity control valve |
WO2013178386A1 (en) * | 2012-06-01 | 2013-12-05 | Robert Bosch Gmbh | Fuel injector |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19834121A1 (en) | 1998-07-29 | 2000-02-03 | Bosch Gmbh Robert | Fuel supply system of an internal combustion engine |
EP1296061A2 (en) | 2001-09-21 | 2003-03-26 | Hitachi, Ltd. | High pressure fuel pump |
DE10327411A1 (en) | 2002-10-15 | 2004-04-29 | Robert Bosch Gmbh | Pressure relief valve and fuel system with such a pressure relief valve |
EP1471248A1 (en) | 1999-02-09 | 2004-10-27 | Hitachi, Ltd. | High pressure fuel supply pump for internal combustion engine |
DE102004016554A1 (en) | 2004-04-03 | 2005-10-27 | Robert Bosch Gmbh | Method for control of solenoid valve, especially fuel control valve in internal combustion engine, entails determining pull-in voltage and/or hold-in voltage in dependence upon operating values of fuel pump and/or engine |
DE102004061798A1 (en) | 2004-12-22 | 2006-07-13 | Robert Bosch Gmbh | Electromagnetic valve, in particular for a fuel injection system of a motor vehicle |
EP1701031A1 (en) | 2005-03-11 | 2006-09-13 | Hitachi, Ltd. | An electromagnetic drive mechanism of a high-pressure fuel supply pump |
DE102005022661A1 (en) | 2005-05-17 | 2007-02-15 | Robert Bosch Gmbh | Fluid pump e.g. fuel-high pressure pump, for use in fuel system of internal combustion engine, has volume control valve that includes valve mechanism arranged parallel to another valve mechanism in fluidic manner |
DE102007028960A1 (en) | 2007-06-22 | 2008-12-24 | Robert Bosch Gmbh | High-pressure pump for fuel system of internal combustion engine, has intake valve device, which is brought by actuation device to certain position or held in certain position |
DE102007034038A1 (en) | 2007-07-20 | 2009-01-22 | Robert Bosch Gmbh | High-pressure pump for a fuel system of an internal combustion engine |
-
2009
- 2009-10-28 DE DE200910046082 patent/DE102009046082A1/en not_active Withdrawn
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19834121A1 (en) | 1998-07-29 | 2000-02-03 | Bosch Gmbh Robert | Fuel supply system of an internal combustion engine |
EP1471248A1 (en) | 1999-02-09 | 2004-10-27 | Hitachi, Ltd. | High pressure fuel supply pump for internal combustion engine |
EP1296061A2 (en) | 2001-09-21 | 2003-03-26 | Hitachi, Ltd. | High pressure fuel pump |
DE10327411A1 (en) | 2002-10-15 | 2004-04-29 | Robert Bosch Gmbh | Pressure relief valve and fuel system with such a pressure relief valve |
DE102004016554A1 (en) | 2004-04-03 | 2005-10-27 | Robert Bosch Gmbh | Method for control of solenoid valve, especially fuel control valve in internal combustion engine, entails determining pull-in voltage and/or hold-in voltage in dependence upon operating values of fuel pump and/or engine |
DE102004061798A1 (en) | 2004-12-22 | 2006-07-13 | Robert Bosch Gmbh | Electromagnetic valve, in particular for a fuel injection system of a motor vehicle |
EP1701031A1 (en) | 2005-03-11 | 2006-09-13 | Hitachi, Ltd. | An electromagnetic drive mechanism of a high-pressure fuel supply pump |
DE102005022661A1 (en) | 2005-05-17 | 2007-02-15 | Robert Bosch Gmbh | Fluid pump e.g. fuel-high pressure pump, for use in fuel system of internal combustion engine, has volume control valve that includes valve mechanism arranged parallel to another valve mechanism in fluidic manner |
DE102007028960A1 (en) | 2007-06-22 | 2008-12-24 | Robert Bosch Gmbh | High-pressure pump for fuel system of internal combustion engine, has intake valve device, which is brought by actuation device to certain position or held in certain position |
DE102007034038A1 (en) | 2007-07-20 | 2009-01-22 | Robert Bosch Gmbh | High-pressure pump for a fuel system of an internal combustion engine |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013092019A1 (en) * | 2011-12-20 | 2013-06-27 | Robert Bosch Gmbh | Quantity control valve and high-pressure pump with quantity control valve |
US9791064B2 (en) | 2011-12-20 | 2017-10-17 | Robert Bosch Gmbh | Quantity control valve and high-pressure pump with quantity control valve |
WO2013178386A1 (en) * | 2012-06-01 | 2013-12-05 | Robert Bosch Gmbh | Fuel injector |
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