EP1795743B1 - Edge filter - Google Patents
Edge filter Download PDFInfo
- Publication number
- EP1795743B1 EP1795743B1 EP06122398A EP06122398A EP1795743B1 EP 1795743 B1 EP1795743 B1 EP 1795743B1 EP 06122398 A EP06122398 A EP 06122398A EP 06122398 A EP06122398 A EP 06122398A EP 1795743 B1 EP1795743 B1 EP 1795743B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- splitting
- fuel
- basic body
- region
- stick filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Not-in-force
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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
- 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
- F02M61/165—Filtering elements specially adapted in fuel inlets to injector
Definitions
- the invention relates to a rod filter for fuel injection valves according to the preamble of claim 1.
- Such a rod filter is for example by the DE 103 07 529 A1 known.
- the known rod filter has a filter body which is inserted into an inlet channel of a nozzle body of a fuel injection valve and fixed in the axial direction by a diameter constriction of the inlet channel and a securing element.
- the diameter of the filter body is smaller than the diameter of the inlet channel, so that the fuel must flow through the resulting gap.
- the difference of the outer diameter in a region of the filter body and the diameter of the inlet channel determine the width of the gap through which the fuel must flow, with particles that are larger than this gap width remain in longitudinal grooves of the filter body and do not get into the fuel injection valve.
- the rod filter according to the invention with the features of claim 1 and the fuel injection valve according to the invention with the features of claim 11 have the advantage that the particles are supplied to the dicing area, wherein due to the reduced gap width, which dictates the flow cross-section in the dicing, the dewatering effect in the ditching is improved.
- the dicing region may adjoin the first section directly or may be arranged slightly spaced from the first section.
- the main body of the rod filter has on its surface one or more dicing areas.
- the surface of the base body is structured at least in the dicing area.
- Such structuring may be produced by knurling, indentations, impressions or otherwise.
- a plurality of dicing edges is provided in the dicing area, which are formed for example on a plurality of pyramidal elevations.
- the cross section of the main body in the dicing area increases in the flow direction. This will initially be relatively large particles divided and with decreasing flow cross-section, which is due to the enlargement of the cross section of the body in the flow direction, a further division of particles is made possible.
- the base body is designed ellipsoidal, whereby the particle reduction is further improved.
- the dicing region is preferably provided in a middle region of the base body, in which the base body has a relatively large cross section, so that the gap remaining with respect to a fuel inlet channel is relatively small.
- At least one fastening device connected to the main body is advantageously provided, which has mutually twisted fastening webs.
- a fastening device may have three fixing webs which are offset by 120 ° relative to one another.
- the rod filter is particularly suitable for filtering fuel that is passed under high pressure through a fuel line.
- a pressure pulse which is generated, for example, by the opening and closing of a fuel injection valve or by a pressure generating device provided on the fuel line, preferably an elastic deformation of the base body and / or an elastic deformation of the fuel line is effected, so that in the region of the dicing region of the rod filter between the main body and the fuel line existing flow cross section is varied. This results in an advantageous chopping of the particles entrained in the fuel.
- Fig. 1 shows a first embodiment of a rod filter 1 of the invention, which is arranged in a fuel inlet channel 2 of a partially shown fuel inlet nozzle 3 of a fuel injection valve.
- the rod filter 1 is used in particular for injectors of fuel injection systems of air-compressing, self-igniting internal combustion engines, in which a fuel under high pressure is filtered through the rod filter 1.
- a preferred use of the rod filter 1 is for a fuel injection system with a common rail, the diesel fuel under high pressure leads to multiple fuel injectors.
- the rod filter 1 according to the invention and the fuel injection valve according to the invention are also suitable for other applications.
- the rod filter 1 has a base body 4, which is configured as an ellipsoidal base body 4. Furthermore, the bar filter 1 has a first fastening device 5 and a second fastening device 6, wherein the first fastening device 5 comprises three fixing webs 7, 8 offset by 120 ° to one another and the second fastening device 6 comprises three fastening rods 9, 10 arranged offset from one another by 120 ° , With respect to a flow direction 11 of a fuel flow, the fastening rods 7, 8 of the first fastening device 5 are rotated by 60 ° relative to the fastening rods 9, 10 of the second fastening device 6, resulting in an advantageous influencing of the fuel flow.
- the main body 4 of the rod filter 1 has a dicing region 13 on a surface 12.
- the dicing region 13 has the shape of a strip with the width B, wherein the dicing region 13 is provided in a middle region of the base body 4, in which a distance A between the fuel inlet channel 2 and the surface 12 of the base body 4 is relatively small.
- the distance A defines an annular gap which defines a minimum flow cross-section for the fuel flow flowing in the flow direction 11. Due to the ellipsoidal shape of the base body 4 is the Fuel flow led to the dicing area 13 and accelerated to the dicing area 13 out.
- the fuel flow is usually not continuous, but is pulsed with the opening and closing of the fuel injector.
- a periodic pressure build-up can take place on the side of the common rail or a high pressure can be present continuously, which leads to pressure pulsations via the switching of the fuel injection valve.
- the pressure pulsations of the fuel result in an elastic deformation of the fuel inlet nozzle 3 and / or of the main body 4 of the rod filter 1, so that the distance A varies with the pressure pulsations.
- Particles contained in the fuel, which are supplied to the dicing area 13, are thereby divided into the dicing area 13.
- the surface 12 of the base body 4 at least in the dicing region 13 a pyramidal structure, based on the Fig. 3 is described in detail. In the in Fig. 1 illustrated embodiment, the pyramidal structure over the entire surface 12 of the base body 4 is executed.
- Fig. 1 Traces 14, 15, 16 represented by the particles contained in the fuel, which are chopped in the dicing region 13 between the surface 12 and the fuel inlet channel 2.
- Fig. 2 shows a rod filter 1, which is arranged in a fuel inlet channel 2 of a fuel inlet nozzle 3 of a fuel injection valve, according to a second embodiment of the invention.
- the base body 4 has a first End piece 21, a second end piece 22 and an intermediate piece 23 which connects the first end piece 21 with the second end piece 22.
- the end pieces 21, 22 are each ellipsoid Halb Eisenörmig configured so that they each form half of an ellipsoidal body.
- the intermediate piece 23 is cylindrical.
- the dicing area 13 is provided on the surface 12 of the intermediate piece 23 of the main body 4, the surface 12 being substantially smooth on the end pieces 21, 22.
- the pyramidal structure in the dicing region 13 can be configured, for example, by a plurality of indentations, the indentations being formed, for example, by V-shaped grooves of a thickness in which a multiplicity of points are formed, as is apparent from FIGS Fig. 3 is shown in more detail.
- the indentations may be provided at an angle of 45 ° to the surface 12 of the main body 4.
- Fig. 3 shows a partial section along the in Fig. 1 with III designated cutting line in a viewing direction, the opposite to the flow direction 11 is.
- the fastening web 7 of the first fastening device 5 bears against the fuel inlet channel 2 of the fuel inlet nozzle 3.
- the remaining fastening webs of the fastening devices 5, 6 abut against the fuel inlet channel 2 of the fuel inlet nozzle 3.
- the fastening devices 5, 6 can be pressed in the fuel inlet 3, in order to allow a reliable attachment of the rod filter 1 in the fuel inlet 3.
- the main body 4 has a pyramidal structure which comprises a large number of pyramidal elevations 24 to 32.
- a tip 33 of the elevation 24 has a distance A from the fuel inlet channel 2. Due to the oidförmigen design of the base body 4, a distance A 'a tip 34 of the pyramidal elevation 29 is greater than the distance A. Since the particles transported by the fuel first reach the pyramidal elevation 34, a further division of initially relatively large particles is possible. The division of the particles takes place essentially by means of edges 35, 36 of the pyramidal elevation 24 and further (in the Fig. 3 not designated) edges of the elevations 25 to 32.
- a division of the passing past the edges 35, 36 particles is already possible because of the mediated by the pulsed fuel flow jerky movement of the particles.
- an elastic configuration of the base body 4 and / or an elastic configuration of the fuel inlet nozzle 3 is possible, which allows a variation of the distance A and the distance A with respect to the pressure pulsations of the fuel. This can specifically chop up the particles be achieved.
- the geometry and the number of pyramidal elevations 24 to 32 in the Fig. 3 to simplify the explanation of the invention. Specifically, a significantly larger number of juxtaposed pyramidal elevations 24 to 27 and juxtaposed pyramidal elevations 28 to 32 may be provided.
- the elevations 24 to 32 may also have a different configuration, in particular a truncated pyramidal configuration is possible.
- the structuring of the dicing region 13 is possible by cutting or non-cutting methods, in particular by embossing.
Abstract
Description
Die Erfindung betrifft ein Stabfilter für Brennstoffeinspritzventile gemäß dem Oberbegriff von Anspruch 1.The invention relates to a rod filter for fuel injection valves according to the preamble of claim 1.
Ein derartiges Stabfilter ist beispielsweise durch die
Das bekannte Stabfilter weist einen Filterkörper auf, der in einen Zulaufkanal eines Düsenkörpers eines Kraftstoffeinspritzventils eingelegt und in axialer Richtung durch eine Durchmesserverengung des Zulaufkanals und ein Sicherungselement fixiert ist. Der Durchmesser des Filterkörpers ist kleiner als der Durchmesser des Zulaufkanals, so dass der Kraftstoff durch den sich ergebenden Spalt fließen muss. Der Unterschied des Außendurchmessers in einem Bereich des Filterkörpers und des Durchmessers des Zulaufkanals legen die Breite des Spalts fest, durch den der Kraftstoff strömen muss, wobei Partikel, die größer als diese Spaltbreite sind, in Längsnuten des Filterkörpers bleiben und nicht in das Kraftstoffeinspritzventil gelangen.The known rod filter has a filter body which is inserted into an inlet channel of a nozzle body of a fuel injection valve and fixed in the axial direction by a diameter constriction of the inlet channel and a securing element. The diameter of the filter body is smaller than the diameter of the inlet channel, so that the fuel must flow through the resulting gap. The difference of the outer diameter in a region of the filter body and the diameter of the inlet channel determine the width of the gap through which the fuel must flow, with particles that are larger than this gap width remain in longitudinal grooves of the filter body and do not get into the fuel injection valve.
Das aus der
Aus der nachveröffentlichten
Das erfindungsgemäße Stabfilter mit den Merkmalen des Anspruchs 1 und das erfindungsgemäße Brennstoffeinspritzventil mit den Merkmalen des Anspruchs 11 haben demgegenüber den Vorteil, dass die Partikel dem Zerteilungsbereich zugeführt werden, wobei auf Grund der reduzierten Spaltbreite, die den Strömungsquerschnitt im Zerteilungsbereich vorgibt, die Zerteilungswirkung im Zerteilungsbereich verbessert ist. Der Zerteilungsbereich kann sich unmittelbar an den ersten Abschnitt anschließen oder auch etwas beabstandet zum ersten Abschnitt angeordnet sein.The rod filter according to the invention with the features of claim 1 and the fuel injection valve according to the invention with the features of
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen des im Anspruch 1 angegebenen Stabfilters und des im Anspruch 11 angegebenen Brennstoffeinspritzventils möglich.The measures listed in the dependent claims advantageous refinements of the specified in claim 1 rod filter and the fuel injection valve specified in
Der Grundkörper des Stabfilters weist an seiner Oberfläche ein oder mehrere Zerteilungsbereiche auf. In vorteilhafter Weise ist die Oberfläche des Grundkörpers zumindest im Zerteilungsbereich strukturiert. Solch eine Strukturierung kann durch eine Rändelung, durch Einkerbungen, durch Einprägungen oder auf andere Weise erzeugt sein. Vorzugsweise ist im Zerteilungsbereich eine Vielzahl von Zerteilungskanten vorgesehen, die beispielsweise an einer Vielzahl von pyramidenförmigen Erhebungen ausgebildet sind. Durch eine im Zerteilungsbereich vorgesehene Pyramidenstruktur werden die im Brennstoff mitgeführten Partikel besonders wirksam zerteilt. Bei der Zerteilung werden vorzugsweise relativ große Partikel zerhakt oder auf andere Weise zerkleinert. Relativ kleine Partikel können zusätzlich zerkleinert werden. Die das Stabfilter passierenden, zumindest teilweise zerkleinerten Partikel sind klein genug, dass ein Ausspülen über das Brennstoffeinspritzventil im normalen Betrieb möglich ist.The main body of the rod filter has on its surface one or more dicing areas. Advantageously, the surface of the base body is structured at least in the dicing area. Such structuring may be produced by knurling, indentations, impressions or otherwise. Preferably, a plurality of dicing edges is provided in the dicing area, which are formed for example on a plurality of pyramidal elevations. By means of a pyramid structure provided in the dividing region, the particles entrained in the fuel are broken up particularly effectively. When dividing, relatively large particles are preferably chopped up or otherwise comminuted. Relatively small particles can be crushed additionally. The particles passing through the rod filter, at least partially comminuted, are small enough that flushing out via the fuel injection valve is possible during normal operation.
Ferner ist es vorteilhaft, dass sich der Querschnitt des Grundkörpers im Zerteilungsbereich in der Strömungsrichtung vergrößert. Dadurch werden zunächst relativ große Partikel zerteilt und mit abnehmendem Strömungsquerschnitt, der durch die Vergrößerung des Querschnitts des Grundkörpers in Strömungsrichtung bedingt ist, wird eine weitere Zerteilung von Partikeln ermöglicht.Furthermore, it is advantageous that the cross section of the main body in the dicing area increases in the flow direction. This will initially be relatively large particles divided and with decreasing flow cross-section, which is due to the enlargement of the cross section of the body in the flow direction, a further division of particles is made possible.
In vorteilhafter Weise ist der Grundkörper ellipsoidförmig ausgestaltet, wodurch die Partikelverkleinerung weiter verbessert ist. Der Zerteilungsbereich ist vorzugsweise in einem mittleren Bereich des Grundkörpers vorgesehen, in dem der Grundkörper einen relativ großen Querschnitt aufweist, so dass der in Bezug auf einen Brennstoffeinlasskanal verbleibende Spalt relativ klein ist.Advantageously, the base body is designed ellipsoidal, whereby the particle reduction is further improved. The dicing region is preferably provided in a middle region of the base body, in which the base body has a relatively large cross section, so that the gap remaining with respect to a fuel inlet channel is relatively small.
Zur Befestigung des Stabfilters ist in vorteilhafter Weise zumindest eine mit dem Grundkörper verbundene Befestigungseinrichtung vorgesehen, die gegeneinander verdrehte Befestigungsstege aufweist. Beispielsweise kann eine Befestigungseinrichtung drei um jeweils 120° versetzt zueinander angeordnete Befestigungsstege aufweisen.For attachment of the rod filter, at least one fastening device connected to the main body is advantageously provided, which has mutually twisted fastening webs. For example, a fastening device may have three fixing webs which are offset by 120 ° relative to one another.
Das Stabfilter eignet sich besonders zum Filtern von Brennstoff, der unter hohem Druck durch eine Brennstoffleitung geführt ist. Bei einem Druckpuls, der beispielsweise durch das Öffnen und Schließen eines Brennstoffeinspritzventils oder durch eine an der Brennstoffleitung vorgesehene Druckerzeugungseinrichtung erzeugt wird, wird vorzugsweise eine elastische Verformung des Grundkörpers und/oder eine elastische Verformung der Brennstoffleitung bewirkt, so dass der im Bereich des Zerteilungsbereichs des Stabfilters zwischen dem Grundkörper und der Brennstoffleitung vorhandene Strömungsquerschnitt variiert wird. Dadurch kommt es zu einer vorteilhaften Zerhackung der im Brennstoff mitgeführten Partikel.The rod filter is particularly suitable for filtering fuel that is passed under high pressure through a fuel line. In the case of a pressure pulse which is generated, for example, by the opening and closing of a fuel injection valve or by a pressure generating device provided on the fuel line, preferably an elastic deformation of the base body and / or an elastic deformation of the fuel line is effected, so that in the region of the dicing region of the rod filter between the main body and the fuel line existing flow cross section is varied. This results in an advantageous chopping of the particles entrained in the fuel.
Zeichnungdrawing
Bevorzugte Ausführungsbeispiele der Erfindung sind in der nachfolgenden Beschreibung anhand der beigefügten Zeichnungen, in denen sich entsprechende Elemente mit übereinstimmenden Bezugszeichen versehen sind, näher erläutert. Es zeigt:
-
Fig. 1 ein erstes Ausführungsbeispiel eines erfindungsgemäßen Stabfilters, das in einem Brennstoffeinlasskanal eines Brennstoffeinspritzventils angeordnet ist; -
Fig. 2 ein in einem Brennstoffeinlasskanal angeordnetes Stabfilter gemäß einem zweiten Ausführungsbeispiel der Erfindung und -
Fig. 3 den inFig. 1 mit III bezeichneten Schnitt durch das in einem Brennstoffeinlasskanal angeordnete Stabfilter in einer teilweisen Schnittdarstellung.
-
Fig. 1 a first embodiment of a rod filter according to the invention, which is arranged in a fuel inlet passage of a fuel injection valve; -
Fig. 2 a arranged in a fuel inlet duct rod filter according to a second embodiment of the invention and -
Fig. 3 the inFig. 1 III with a section through the arranged in a fuel inlet duct rod filter in a partial sectional view.
Das Stabfilter 1 weist einen Grundkörper 4 auf, der als ellipsoidförmiger Grundkörper 4 ausgestaltet ist. Ferner weist das Stabfilter 1 eine erste Befestigungseinrichtung 5 und eine zweite Befestigungseinrichtung 6 auf, wobei die erste Befestigungseinrichtung 5 drei um 120° versetzt zueinander angeordnete Befestigungsstege 7, 8 umfasst und die zweite Befestigungseinrichtung 6 drei zueinander um 120° versetzt angeordnete Befestigungsstäbe 9, 10 umfasst. In Bezug auf eine Strömungsrichtung 11 einer Brennstoffströmung sind die Befestigungsstäbe 7, 8 der ersten Befestigungseinrichtung 5 um 60° verdreht zu den Befestigungsstäben 9, 10 der zweiten Befestigungseinrichtung 6 angeordnet, wodurch sich eine vorteilhafte Beeinflussung der Brennstoffströmung ergibt.The rod filter 1 has a
Der Grundkörper 4 des Stabfilters 1 weist an einer Oberfläche 12 einen Zerteilungsbereich 13 auf. Der Zerteilungsbereich 13 weist dabei die Gestalt eines Streifens mit der Breite B auf, wobei der Zerteilungsbereich 13 in einem mittleren Bereich des Grundkörpers 4 vorgesehen ist, in dem ein Abstand A zwischen dem Brennstoffeinlasskanal 2 und der Oberfläche 12 des Grundkörpers 4 relativ klein ist. Durch den Abstand A ist ein Ringspalt vorgegeben, der einen minimalen Strömungsquerschnitt für die in der Strömungsrichtung 11 fließende Brennstoffströmung definiert. Durch die ellipsoidförmige Form des Grundkörpers 4 wird die Brennstoffströmung an den Zerteilungsbereich 13 geführt und zum Zerteilungsbereich 13 hin beschleunigt.The
Die Brennstoffströmung erfolgt in der Regel nicht kontinuierlich, sondern wird mit dem Öffnen und Schließen des Brennstoffeinspritzventils gepulst. Dabei kann auf der Seite des Common-Rails ein periodischer Druckaufbau erfolgen oder kontinuierlich ein hoher Druck anliegen, der über das Schalten des Brennstoffeinspritzventils zu Druckpulsationen führt. Durch die Druckpulsationen des Brennstoffs kommt es zu einer elastischen Verformung des Brennstoffeinlassstutzens 3 und/oder des Grundkörpers 4 des Stabfilters 1, so dass der Abstand A mit den Druckpulsationen variiert. In dem Brennstoff enthaltene Partikel, die dem Zerteilungsbereich 13 zugeführt werden, werden dadurch im Zerteilungsbereich 13 zerteilt. Hierfür weist die Oberfläche 12 des Grundkörpers 4 zumindest im Zerteilungsbereich 13 eine Pyramidenstruktur auf, die anhand der
Zur Veranschaulichung der Erfindung sind in der
Zumindest im Zerteilungsbereich 13 weist der Grundkörper 4 eine Pyramidenstruktur auf, die eine Vielzahl von pyramidenförmigen Erhebungen 24 bis 32 umfasst. Dabei hat eine Spitze 33 der Erhebung 24 einen Abstand A von dem Brennstoffeinlasskanal 2. Auf Grund der oidförmigen Ausgestaltung des Grundkörpers 4 ist ein Abstand A' einer Spitze 34 der pyramidenförmigen Erhebung 29 größer als der Abstand A. Da die von dem Brennstoff transportierten Partikel zunächst die pyramidenförmige Erhebung 34 erreichen, ist ein weitergehendes Zerteilen von zunächst relativ großen Partikeln möglich. Das Zerteilen der Partikel erfolgt dabei im Wesentlichen mittels Kanten 35, 36 der pyramidenförmigen Erhebung 24 und weiterer (in der
Die Erfindung ist nicht auf die beschriebenen Ausführungsbeispiele beschränkt.The invention is not limited to the described embodiments.
Claims (12)
- Stick filter (1) for fuel injection valves, in particular for injectors for fuel injection systems of air-compressing auto-ignition internal combustion engines, with a basic body (4), characterized in that the basic body (4) has on a surface (12) at least one superficially structured splitting-up region (13) which is configured for splitting up particles flowing over the splitting-up region (13) of the basic body (4), and in that, at least in a first portion, a cross section of the basic body (4) is enlarged in a flow direction (11) to reduce a flow cross section provided for a fuel flow, and in that the splitting-up region (13) follows the first portion with respect to the flow direction (11).
- Stick filter according to Claim 1, characterized in that at least one splitting-up edge (35, 36) is provided in the splitting-up region (13).
- Stick filter according to Claim 1 or 2, characterized in that a multiplicity of splitting-up edges (35, 36) are provided.
- Stick filter according to one of Claims 1 to 3, characterized in that the basic body (4) has in the splitting-up region (13) a pyramid structure which comprises a multiplicity of pyramidal elevations (24-32).
- Stick filter according to one of Claims 1 to 4, characterized in that the cross section of the basic body (4) is enlarged, at least in portions, in the flow direction (11) in the splitting-up region (13).
- Stick filter according to one of Claims 1 to 5, characterized in that the basic body (4) has an at least essentially ellipsoidal configuration.
- Stick filter according to one of Claims 1 to 6, characterized in that the basic body (4) has a first end piece (21), a second end piece (22) and at least one intermediate piece (23), in that the first end piece (21) has a semi-ellipsoidal configuration, in that the second end piece (22) has a semi-ellipsoidal configuration, in that the intermediate piece (23) has an at least essentially cylindrical configuration, and in that the splitting-up region (13) is provided at least on the intermediate piece (23).
- Stick filter according to Claim 7, characterized in that the cylindrical intermediate piece (23) connects the first end piece (21) to the second end piece (22).
- Stick filter according to one of Claims 1 to 8, characterized in that at least one fastening device (5, 6) connected to the basic body (4) is provided, which has fastening webs (7, 8; 9, 10) twisted with respect to one another.
- Stick filter according to Claim 9, characterized in that a first fastening device (5) is connected to a first end piece (21) of the basic body (4), and in that a second fastening device (6) is connected to a second end piece (22).
- Fuel injection valve, in particular injector for fuel injection systems of air-compressing auto-ignition internal combustion engines, with a fuel inlet connection piece (3), which has a fuel inlet duct (2), and with a stick filter (1) according to one of Claims 1 to 10 which is arranged in the fuel inlet duct (2) of the fuel inlet connection piece (3).
- Fuel injection valve according to Claim 11, characterized in that the fuel inlet connection piece (3) is configured such that a pulsed supply of fuel which is under high pressure is made possible, and in that the splitting-up region (13) of the stick filter (1) cooperates with the fuel inlet duct (2) such that, by means of a pressure pulse, a temporary enlargement of a flow cross section between the fuel inlet duct (2) and the splitting-up region (13) of the stick filter (1) and a subsequent reduction in the flow cross section as a result of an elastic deformation of the basic body (4) and/or of the fuel inlet duct (2) are made possible for the purpose of splitting up the particles.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005059164A DE102005059164A1 (en) | 2005-12-12 | 2005-12-12 | rod filter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1795743A1 EP1795743A1 (en) | 2007-06-13 |
EP1795743B1 true EP1795743B1 (en) | 2009-12-23 |
Family
ID=37685042
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06122398A Not-in-force EP1795743B1 (en) | 2005-12-12 | 2006-10-17 | Edge filter |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1795743B1 (en) |
AT (1) | ATE453047T1 (en) |
DE (2) | DE102005059164A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10967322B2 (en) | 2013-03-15 | 2021-04-06 | Donaldson Company, Inc. | Ovate tubular filter cartridges and filter systems using the same |
US11931681B2 (en) | 2013-03-04 | 2024-03-19 | Donaldson Company, Inc. | Air filter systems and methods of using the same |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4437927C2 (en) * | 1994-10-24 | 1996-09-12 | Bosch Gmbh Robert | Solenoid valve-controlled fuel injection device with an injection nozzle for fuel injection into the combustion chamber of a diesel internal combustion engine |
GB9911889D0 (en) * | 1999-05-22 | 1999-07-21 | Lucas Ind Plc | Filter |
US6536417B2 (en) * | 2000-12-20 | 2003-03-25 | Detroit Diesel Corporation | Easy flow improved edge filter and fuel system |
DE10307529A1 (en) * | 2003-02-21 | 2004-09-02 | Robert Bosch Gmbh | Fuel filter for a motor vehicle's fuel injection system has a rod-shaped filter body guided on its ends in a supply channel |
WO2006049598A1 (en) * | 2004-10-28 | 2006-05-11 | Robert Bosch Gmbh | Fuel injector filter |
DE102005025527A1 (en) * | 2005-06-03 | 2006-12-07 | Robert Bosch Gmbh | Filter arrangement with a surface-structured rod filter |
-
2005
- 2005-12-12 DE DE102005059164A patent/DE102005059164A1/en not_active Withdrawn
-
2006
- 2006-10-17 EP EP06122398A patent/EP1795743B1/en not_active Not-in-force
- 2006-10-17 DE DE502006005722T patent/DE502006005722D1/en active Active
- 2006-10-17 AT AT06122398T patent/ATE453047T1/en active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11931681B2 (en) | 2013-03-04 | 2024-03-19 | Donaldson Company, Inc. | Air filter systems and methods of using the same |
US10967322B2 (en) | 2013-03-15 | 2021-04-06 | Donaldson Company, Inc. | Ovate tubular filter cartridges and filter systems using the same |
US11701609B2 (en) | 2013-03-15 | 2023-07-18 | Donaldson Company, Inc. | Ovate tubular filter cartridges and filter systems using the same |
Also Published As
Publication number | Publication date |
---|---|
EP1795743A1 (en) | 2007-06-13 |
DE102005059164A1 (en) | 2007-06-21 |
ATE453047T1 (en) | 2010-01-15 |
DE502006005722D1 (en) | 2010-02-04 |
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