DE102011004186A1 - Fuel injection component has element, which is arranged in bore of guide element, where element has structured surface in area between inlet area and outlet area of bore - Google Patents
Fuel injection component has element, which is arranged in bore of guide element, where element has structured surface in area between inlet area and outlet area of bore Download PDFInfo
- Publication number
- DE102011004186A1 DE102011004186A1 DE201110004186 DE102011004186A DE102011004186A1 DE 102011004186 A1 DE102011004186 A1 DE 102011004186A1 DE 201110004186 DE201110004186 DE 201110004186 DE 102011004186 A DE102011004186 A DE 102011004186A DE 102011004186 A1 DE102011004186 A1 DE 102011004186A1
- Authority
- DE
- Germany
- Prior art keywords
- fuel injection
- area
- bore
- injection component
- component according
- 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.)
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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
- F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
- F02M63/0071—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059 characterised by guiding or centering means in valves including the absence of any guiding means, e.g. "flying arrangements"
-
- 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
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
- F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
- F02M61/12—Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for valve bodies
-
- 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
- F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
-
- 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
- F02M2200/06—Fuel-injection apparatus having means for preventing coking, e.g. of fuel injector discharge orifices or valve needles
-
- 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
- F02M2200/29—Fuel-injection apparatus having rotating 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
- F02M2200/80—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
Abstract
Description
Stand der TechnikState of the art
Die Erfindung betrifft eine Kraftstoffeinspritzkomponente nach dem Oberbegriff des Anspruchs 1.The invention relates to a fuel injection component according to the preamble of claim 1.
Eine derartige Kraftstoffeinspritzkomponente ist aus der
Die ordnungsgemäße Funktion einer Kraftstoffeinspritzkomponente, ihre Standfestigkeit und ihre Lebensdauer sind sehr stark von den Eigenschaften des Kraftstoffs und seiner Bestandteile abhängig. Verändern sich die chemisch-physikalischen Kraftstoffeigenschaften durch Zufuhr anderer Kraftstoffe als für das Kraftstoffeinspritzsystem vorgesehen, oder aber durch Veränderung der Kraftstoffeigenschaften im laufenden Betrieb, so ändern sich die Funktionen der Kraftstoffeinspritzkomponente. Eine besondere Auswirkung durch veränderte Kraftstoffeigenschaften ist zum Beispiel die Bildung von Belägen, die an den Oberflächen der Kraftstoffeinspritzkomponente anhaften können. Beispielsweise bei Kraftstoffeinspritzkomponenten in Dieselkraftstoffeinspritzsystem hängt die Belagsbildung bei den verwendeten Dieselkraftstoffen u. a. durch Metallseifen, durch Alterungspolymerbestandteile aufgrund von Bioanteilen im Kraftstoff, oder durch Polymerbestandteile bestimmter Detergenzien ab. Die Reaktionen, die zu Produkten der Belagsbildung führen, sind temperaturabhängig und eine hohe Temperatur unterstützt und beschleunigt die Bildung von Belägen. Heißer Kraftstoff altert z. B. schneller, er oxidiert und bildet Säuren, die einer chemischen Reaktion zur Bildung von Belägen förderlich sind. Die Beläge entstehen dabei vermutlich nicht nur während des Betriebs der Kraftstoffeinspritzkomponente, sondern bilden sich auch weiter aus, wenn Kraftstoffeinspritzkomponenten wie Ventile, Steller usw. nicht mehr betätigt werden, weil z. B. der Motor abgestellt wird. Belagsbildung kann zu Funktionsbeeinträchtigungen der Kraftstoffeinspritzkomponente führen, die bis zu einer Blockade der Bewegung eines auf- und abbeweglichen Elements der Kraftstoffeinspritzkomponente führen kann.Proper functioning of a fuel injection component, its durability and life are very dependent on the properties of the fuel and its components. If the chemical-physical fuel properties change as a result of the supply of fuels other than those provided for the fuel injection system, or if the fuel properties change during operation, the functions of the fuel injection component change. One particular effect of changing fuel properties is, for example, the formation of deposits that may adhere to the surfaces of the fuel injection component. For example, in fuel injection components in diesel fuel injection system, the deposit formation in the used diesel fuels u. a. by metal soaps, by aging polymer components due to bio-proportions in the fuel, or by polymer components of certain detergents. The reactions that lead to the formation of deposits are temperature-dependent and a high temperature supports and accelerates the formation of deposits. Hot fuel ages z. B. faster, it oxidizes and forms acids that are conducive to a chemical reaction to form deposits. The pads are likely to arise not only during operation of the fuel injection component, but also continue to develop when fuel injection components such as valves, actuators, etc. are no longer actuated because z. B. the engine is turned off. Scale formation can lead to functional impairments of the fuel injection component, which can lead to blockage of movement of an up-and-down movable element of the fuel injection component.
Offenbarung der ErfindungDisclosure of the invention
Ausgehend von dem dargestellten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine Kraftstoffeinspritzkomponente nach dem Oberbegriff des Anspruchs 1 derart weiterzubilden, dass die Neigung zur Belagsbildung zumindest reduziert wird. Diese Aufgabe wird bei einer Kraftstoffeinspritzkomponente mit den Merkmalen des Anspruchs 1 gelöst.Based on the illustrated prior art, the invention has the object, a fuel injection component according to the preamble of claim 1 such that the tendency for deposit formation is at least reduced. This object is achieved in a fuel injection component with the features of claim 1.
Der Erfindung liegt dabei die Idee zugrunde, das auf- und abbewegliche Element mit einer strukturierten Oberfläche auszubilden, die gegebenenfalls entstehende Beläge entfernt. Alternativ bzw. zusätzlich kann es vorgesehen sein, dass das auf- und abbewegliche Element mit Mittel zur Erzeugung einer Drehbewegung des Elements um seine Längsachse vorgesehen ist. Durch diese zusätzliche Relativbewegung zwischen dem auf- und abbeweglichen Element und dem Führungselement (insbesondere Gehäuse) lassen sich in ähnlicher Weise Belagsbildungen vermeiden bzw. Beläge entfernen. Wesentlich dabei ist, dass jede der genannten Maßnahmen sowohl einzeln als auch gemeinsam angewandt werden kann.The invention is based on the idea to form the up and down movable element with a structured surface, which removes any resulting deposits. Alternatively or additionally, it may be provided that the up and down movable element is provided with means for generating a rotational movement of the element about its longitudinal axis. By this additional relative movement between the up and down movable element and the guide element (in particular housing) can be avoided in a similar manner pad formation or remove coverings. It is essential that each of these measures can be applied both individually and jointly.
Vorteilhafte Weiterbildungen der erfindungsgemäßen Kraftstoffeinspritzkomponente 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 fuel injection component 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.
In einer ersten konstruktiven Umsetzung der Erfindung, die sich relativ kostengünstig realisieren lässt wird vorgeschlagen, dass die strukturierte Oberfläche in Form wenigstens einer radial umlaufenden Ringnut am Element ausgebildet ist.In a first constructive implementation of the invention, which can be realized relatively inexpensively, it is proposed that the structured surface is formed in the form of at least one radially circumferential annular groove on the element.
In einer alternativen Ausgestaltung der Erfindung ist es jedoch auch möglich, dass die strukturierte Oberfläche in Form wenigstens einer Vertiefung am Element ausgebildet ist. Vorzugsweise weist dabei die wenigstens eine Vertiefung die Form einer im Querschnitt runden oder n-eckigen Vertiefung auf. In an alternative embodiment of the invention, however, it is also possible that the structured surface is formed in the form of at least one recess on the element. In this case, the at least one depression preferably has the shape of a recess which is round or n-shaped in cross-section.
Die Wirksamkeit der Vertiefungen lässt sich dabei bei gleichzeitig relativ kostengünstiger Herstellung vergrößern, wenn eine Vielzahl von in gleichmäßigen Abständen zueinander angeordneten Vertiefungen vorgesehen ist.The effectiveness of the wells can be increased at the same time relatively inexpensive production, if a plurality of evenly spaced recesses is provided.
Eine weitere alternative Ausgestaltung der Erfindung, die zur Erzeugung einer Drehbewegung des auf- und abbeweglichen Elements dient, sieht vor, dass die Drehbewegung durch wenigstens eine im Bereich der Bohrung ausgebildete Strömungsnut erzeugt wird. Diese Ausbildung hat dabei den Vorteil, dass die axiale Baulänge des auf- und abbeweglichen Elements nicht vergrößert.A further alternative embodiment of the invention, which serves to produce a rotational movement of the upwardly and downwardly movable element, provides that the rotational movement is generated by at least one flow groove formed in the region of the bore. This training has the advantage that the axial length of the up and down movable element does not increase.
In einer konkreten Ausführungsform wird dabei vorgeschlagen, dass die Strömungsnut als wendelförmige Nut ausgebildet ist und sich vorzugsweise über die gesamte axiale Länge der Führung erstreckt.In a specific embodiment, it is proposed that the flow groove is formed as a helical groove and preferably extends over the entire axial length of the guide.
Eine weitere alternative Ausführungsform der Erfindung, bei der ebenfalls eine Drehbewegung des auf- und abbeweglichen Elements erzeugt wird sieht vor, dass die Drehbewegung durch wenigstens eine im Bereich außerhalb der Führung ausgebildete Strömungsgeometrie am Element erzeugt wird.A further alternative embodiment of the invention, in which likewise a rotational movement of the upwardly and downwardly movable element is generated, provides that the rotational movement is generated by at least one flow geometry formed in the region outside the guide on the element.
Eine derartige Ausbildung hat den Vorteil, dass eine hohe Dichtwirkung zwischen dem auf- und abbeweglichen Element und dem Führungselement im Bereich der Bohrung erzielt wird.Such a design has the advantage that a high sealing effect between the up and down movable element and the guide element in the region of the bore is achieved.
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.
Die zeigt in:The shows in:
Gleiche Bauteile bzw. Teile mit gleicher Funktion sind in den Figuren mit den gleichen Bezugsziffern versehen.The same components or parts with the same function are provided in the figures with the same reference numerals.
In der
Die Auf- und Abbewegung der Ventilnadel
Das dem Ankerelement
Der dem Abschnitt
Erfindungsgemäß ist es vorgesehen, dass die Ventilnadel
Bei dem in der
In dem Eintrittsbereich
Bei dem in den
In der
In Abwandlung der Ventilnadel
Bei dem in
Zuletzt ist in der
Die soweit beschriebenen Ausführungsbeispiele können in vielfältiger Art und Weise abgewandelt bzw. modifiziert werden, ohne vom Erfindungsgedanken abzuweichen. So ist es insbesondere auch denkbar, die Ventilnadel
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
- WO 2004/081365 A1 [0002] WO 2004/081365 A1 [0002]
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110004186 DE102011004186A1 (en) | 2011-02-16 | 2011-02-16 | Fuel injection component has element, which is arranged in bore of guide element, where element has structured surface in area between inlet area and outlet area of bore |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110004186 DE102011004186A1 (en) | 2011-02-16 | 2011-02-16 | Fuel injection component has element, which is arranged in bore of guide element, where element has structured surface in area between inlet area and outlet area of bore |
Publications (1)
Publication Number | Publication Date |
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DE102011004186A1 true DE102011004186A1 (en) | 2012-08-16 |
Family
ID=46579525
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201110004186 Withdrawn DE102011004186A1 (en) | 2011-02-16 | 2011-02-16 | Fuel injection component has element, which is arranged in bore of guide element, where element has structured surface in area between inlet area and outlet area of bore |
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DE (1) | DE102011004186A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012221524A1 (en) * | 2012-11-26 | 2014-05-28 | Bayerische Motoren Werke Aktiengesellschaft | Injection device for an internal combustion engine |
EP2816219A1 (en) | 2013-06-21 | 2014-12-24 | Robert Bosch Gmbh | Control valve for a fuel injector |
EP3001023A1 (en) * | 2014-09-27 | 2016-03-30 | MAN Diesel & Turbo SE | Fuel pump |
DE102015205161A1 (en) | 2015-03-23 | 2016-09-29 | Robert Bosch Gmbh | Valve for a fuel injection component |
WO2016206850A1 (en) * | 2015-06-24 | 2016-12-29 | Robert Bosch Gmbh | Fuel injector with control valve |
DE102015223168A1 (en) | 2015-11-24 | 2017-05-24 | Robert Bosch Gmbh | fuel injector |
US20200063703A1 (en) * | 2018-08-23 | 2020-02-27 | Progress Rail Services Corporation | Electronic Unit Injector Shuttle Valve |
WO2020143914A1 (en) * | 2019-01-09 | 2020-07-16 | Delphi Technologies Ip Limited | Hydraulic valve |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004081365A1 (en) | 2003-03-11 | 2004-09-23 | Delphi Technologies, Inc. | Fuel injector |
-
2011
- 2011-02-16 DE DE201110004186 patent/DE102011004186A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004081365A1 (en) | 2003-03-11 | 2004-09-23 | Delphi Technologies, Inc. | Fuel injector |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9790907B2 (en) | 2012-11-26 | 2017-10-17 | Bayerische Motoren Werke Aktiengesellschaft | Injection device for an internal combustion engine |
DE102012221524A1 (en) * | 2012-11-26 | 2014-05-28 | Bayerische Motoren Werke Aktiengesellschaft | Injection device for an internal combustion engine |
EP2816219A1 (en) | 2013-06-21 | 2014-12-24 | Robert Bosch Gmbh | Control valve for a fuel injector |
DE102013211855A1 (en) | 2013-06-21 | 2014-12-24 | Robert Bosch Gmbh | Control valve for a fuel injector |
EP3001023A1 (en) * | 2014-09-27 | 2016-03-30 | MAN Diesel & Turbo SE | Fuel pump |
DE102015205161A1 (en) | 2015-03-23 | 2016-09-29 | Robert Bosch Gmbh | Valve for a fuel injection component |
WO2016206850A1 (en) * | 2015-06-24 | 2016-12-29 | Robert Bosch Gmbh | Fuel injector with control valve |
DE102015223168A1 (en) | 2015-11-24 | 2017-05-24 | Robert Bosch Gmbh | fuel injector |
US20200063703A1 (en) * | 2018-08-23 | 2020-02-27 | Progress Rail Services Corporation | Electronic Unit Injector Shuttle Valve |
US11746734B2 (en) * | 2018-08-23 | 2023-09-05 | Progress Rail Services Corporation | Electronic unit injector shuttle valve |
WO2020143914A1 (en) * | 2019-01-09 | 2020-07-16 | Delphi Technologies Ip Limited | Hydraulic valve |
CN113498452A (en) * | 2019-01-09 | 2021-10-12 | 德尔福知识产权有限公司 | Hydraulic valve |
CN113498452B (en) * | 2019-01-09 | 2023-08-08 | 德尔福知识产权有限公司 | Hydraulic valve |
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