EP2886844B1 - Fuel conduit device and method for operating a fuel conduit device - Google Patents
Fuel conduit device and method for operating a fuel conduit device Download PDFInfo
- Publication number
- EP2886844B1 EP2886844B1 EP13197668.0A EP13197668A EP2886844B1 EP 2886844 B1 EP2886844 B1 EP 2886844B1 EP 13197668 A EP13197668 A EP 13197668A EP 2886844 B1 EP2886844 B1 EP 2886844B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter device
- fuel
- fuel line
- functional state
- 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.)
- Active
Links
- 239000000446 fuel Substances 0.000 title claims description 111
- 238000000034 method Methods 0.000 title claims description 11
- 239000012530 fluid Substances 0.000 claims description 38
- 238000001914 filtration Methods 0.000 claims description 16
- 239000002245 particle Substances 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 239000000356 contaminant Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 2
- 239000012535 impurity Substances 0.000 description 10
- 238000009434 installation Methods 0.000 description 6
- 230000000712 assembly Effects 0.000 description 5
- 238000000429 assembly Methods 0.000 description 5
- 238000011109 contamination Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
- F02M37/0017—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor related to fuel pipes or their connections, e.g. joints or sealings
-
- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0047—Layout or arrangement of systems for feeding fuel
- F02M37/007—Layout or arrangement of systems for feeding fuel characterised by its use in vehicles, in stationary plants or in small engines, e.g. hand held tools
-
- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
- F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
- F02M37/36—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements with bypass means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/0318—Processes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/794—With means for separating solid material from the fluid
Definitions
- the invention relates to a fuel line assembly for motor vehicles, with a plurality of pipe sections.
- the invention relates in particular to a fuel line assembly for diesel fuels or for diesel engines.
- the invention further relates to a method for operating a fuel line assembly.
- Fuel rail assemblies for motor vehicles are known in practice in various embodiments.
- impurity particles such as dust particles and the like accumulate.
- These impurity particles or dust particles can interfere with the operation of the fuel line assembly or the associated motor vehicle connected components, such as nozzles, injectors, pumps or filters and in particular clog or block. Therefore, it is desirable to keep the fuel rail assemblies or the associated pipe sections from such contaminants.
- the production of the fuel line assemblies can be carried out under special conditions, in particular in clean rooms, and the components produced can be subjected to special cleaning measures. However, this is expensive and expensive. In addition, often not all contaminants can be eliminated or eliminated, so that in operation of the fuel rail assemblies nonetheless unwanted disturbances can occur.
- the invention the technical problem underlying a fuel line assembly of the type mentioned above, in which the can effectively be minimized or eliminated with contaminants or problems occurring with impurity particles.
- the invention is further based on the technical problem of specifying a method for operating a fuel line unit.
- the invention teaches a fuel line assembly for motor vehicles, especially for motor vehicles with diesel engines, wherein the fuel line assembly has at least two pipe sections and at least one disposed between the two pipe sections filter device, wherein fluid medium or fuel via a first pipe section of the filter device can be fed and wherein the fluid medium or the fuel via a second pipe section is again discharged from the filter device / is discharged, wherein the filter device has at least two functional states, wherein in a first functional state (filter state) of the filter device supplied through the first pipe section Fluid medium or the supplied through the first pipe section fuel is filterable by means of at least one filter medium of the filter device / filtered wi Rd and wherein after switching the filter device into a second functional state (flow-through state), the fluid medium or the fuel flows through the filter device via at least one passage channel without filtering or substantially without filtering.
- filter state in a first functional state of the filter device supplied through the first pipe section
- Fluid medium or the supplied through the first pipe section fuel is filterable by means of at least one filter medium of the
- fluid medium or fuel can also be fed / supplied to the filter device via the second pipeline section and can be filtered in a first functional state (filter state) of the filter device by means of the at least one filter medium of the filter device. is filtered and that after switching the filter device in a second functional state (flow condition) the fluid medium or the fuel flows through the filter device via the at least one passage channel without filtering or substantially without filtering.
- filter state a first functional state
- second functional state flow condition
- the term fluid medium also means a fluid rinsing medium or liquid rinsing medium which is different from fuel and with which the fuel line unit can be rinsed, especially before installation in a motor vehicle, for filtering out contamination particles.
- a fluid flushing medium or liquid flushing medium prior to installation of the fuel line assembly in a motor vehicle. If fuel is mentioned below, according to one embodiment of the invention, this also means a fluid or liquid flushing medium different from fuel.
- At least one inventive fuel line assembly is used in a constructed of a plurality of pipe sections fuel line. Furthermore, it is within the scope of the invention that such a fuel line assembly is provided at least at both ends of a fuel line.
- the filter device connects the connected pipe sections directly to each other. It is within the scope of the invention that only one filter device is interposed between two pipe sections.
- the first functional state of the filter device is here and below as Designated filter state and the second functional state of the filter device is referred to here and below as Naturalströmschreib. According to a proven embodiment, a filter device has only two functional states (filter state and flow state).
- the invention is based on the finding that with a fuel line assembly according to the invention, the problems occurring with impurities in a fuel line can be minimized or eliminated simply and effectively.
- a fuel line assembly according to the invention neither the production process for a fuel line nor the operation of the motor vehicle engine or the fuel supply system of the motor vehicle is adversely affected.
- the second functional state or the flow-through state of the unit is expediently set when the motor vehicle is put into operation.
- cleaning measures are realized in a simple and cost-effective manner within the scope of the invention, without resulting in a commissioning of a motor vehicle, a disadvantageous pressure loss in the supply of fuels.
- a filter medium for the filter device of the fuel line assembly fundamentally different materials can be used in the invention.
- at least one fiber material is used as the filter medium.
- nonwovens made of synthetic fibers can be used as the filter medium or multilayer filter media made of nonwoven and paper.
- Papers made of cellulose fibers impregnated with special resins are also suitable for the filter medium of the filter device.
- the pipe sections have a circular cross section or a substantially circular cross section.
- the pipe sections of the fuel rail assembly made of plastic or substantially of plastic.
- the pipe sections are preferably produced by extrusion or coextrusion.
- the filter device or the filter housing of the filter device consists of plastic or essentially of plastic.
- the fuel line assembly according to the invention is switched / switched after its production in the first functional state (filter state). It is also within the scope of the invention that the fuel line assembly also remains in this first functional state (filter state) during or after installation in a motor vehicle. It is recommended that the first functional state (filter state) also remains set for at least one test run of the engine of the motor vehicle. Then, impurities can be effectively removed from the fuel rail assembly in which the fuel flows through the filter medium of the filter device. It is within the scope of the invention that the second functional state (DurchströmSullivan) is set / set after commissioning or after the final commissioning of the motor vehicle.
- the passage channel of the filter device in the first functional state is closed with at least one shut-off element.
- the passage channel is opened or the passage channel is opened by means of the shut-off element.
- the shut-off element is arranged with respect to the flow direction at the entrance or at the beginning of the passage channel.
- the shut-off element may in particular be a gate valve, which is expediently integrated in the control and / or regulating system of the motor vehicle.
- the passage channel has the same flow cross-sectional area or substantially the same flow cross-sectional area as the first pipeline section and / or the second pipeline section. This ensures that in the second functional state (flow-through state) the fluid medium or the fuel is passed through the fuel line assembly without pressure loss or substantially without pressure loss.
- the passage channel or the interior of the passage channel corresponds in terms of its size and / or its shape to the first pipe section and / or the second pipe section or the interior of the first pipe section and / or the second pipe section. It is within the scope of the invention that the passage channel is aligned with the first pipe section and / or with the second pipe section.
- the filter medium of the filter device is arranged next to the flow channel or directly next to the flow channel.
- the filter medium is in fluid communication or in direct fluid communication with the passageway.
- the filter medium of the filter device surrounds the passage channel over at least one part, preferably over a large part of its circumference and very preferably over the entire circumference of the passage channel.
- the passageway is suitably arranged centrally or centrally in the filter device or in the filter housing of the filter device.
- passage channel and filter medium in the filter device or in the filter housing of the filter device are arranged coaxially to each other.
- the fluid medium supplied via the first pipeline section or the fuel supplied via the first pipeline section passes through the filter medium of the filter device into an exit section of the passageway or directly into an outlet section of the passageway and from there flows into the second pipe section.
- the passage channel is also active in the first functional state (filter state) or through which the fluid / fuel flows.
- the invention also relates to a method for operating a fuel line assembly, wherein the fuel line assembly has at least one filter device with at least one inlet end and at least one outlet end, wherein at the inlet end a first pipe section and at the outlet end a second pipe section is connected, wherein in a first Function state (filter state) of the filter device, a fluid medium - in particular liquid fuel - is passed through the fuel line and the fluid medium / the fuel flows through at least one filter medium of the filter device, so that contained in the fuel line assembly impurity particles, in particular impurity particles from the manufacturing process of the fuel line unit, with be filtered out of the filter medium of the filter device.
- a first Function state filter state
- the first functional state (filter state) is set / is. It is furthermore within the scope of the invention that the fuel line assembly according to the invention is installed in a motor vehicle and then preferably the first functional state (filter state) is set until commissioning or until the final startup of the motor vehicle. Furthermore, it is within the scope of the invention that, at least after commissioning or after final startup of the motor vehicle, the second functional state (flow-through state) is set, in which flow-through state fuel the filter device without filtering or essentially without filtering and above all without an associated pressure loss flows through. In this second functional state, the filter function of the filter device is virtually inactive.
- the first functional state expediently remains set during at least one test run of the motor vehicle engine or of the motor vehicle. Only then - that is at final commissioning of the motor vehicle - is expediently the second functional state (flow condition) set. Empfohleneflower the second functional state (flow condition) then remains permanently set.
- the invention is based on the finding that with the fuel line assembly according to the invention and with the method according to the invention, contaminants of the fuel line assembly can be removed simply and effectively before the motor vehicle is put into operation. This is especially true for impurity particles from the manufacturing process of the fuel rail assembly. In that regard, an effective protection against contamination is realized with the invention. Compared to known measures can in the implementation of the inventive measures an impairment of vehicle components - such as nozzles, injectors, filters, pumps and the like - Effectively avoided by contamination. It should be emphasized that the fuel line assembly according to the invention and the method according to the invention can be implemented with simple, inexpensive and cost-effective measures.
- the figures show an inventive fuel line assembly for non-illustrated motor vehicles, especially for motor vehicles with diesel engines.
- the fuel line assembly has two pipe sections 1, 2 and a filter device 3 arranged between the pipe sections 1, 2.
- a first pipe section 1 is connected to an inlet end 4 of the filter device 3, and a second pipe section is connected to an outlet end 5 of the filter device.
- the pipe sections 1, 2 are expediently made of plastic and preferably have a circular cross-section.
- the filter device 3 connecting the pipe sections 1, 2 preferably has a cylindrical filter housing 6 in the exemplary embodiment.
- the passage channel 7 has the same flow cross-sectional area as the first pipe section 1 and the second pipe section 2 and the passage channel 7 is preferably aligned with the pipe sections 1, 2.
- Empfohlene junk and in the embodiment runs over the circumference of the passage channel 7, a filter medium eighth the filter device 3 to.
- passage channel 7 and filter medium 8 are arranged coaxially with each other. It is within the scope of the invention that the filter medium 8 is in fluid communication with the passage channel 7, specifically in the region of the outlet section 9 of the passage channel 7.
- a gate valve shut-off valve 10 designed as a gate valve shut-off valve 10 is provided, with which the passage channel 7 can be shut off at its inlet.
- an actuating element is connected to the shut-off element 10.
- the gate valve or the shut-off element 10 is preferred and in the exemplary embodiment pivotable about a pivot axis 12 and from a closed position to an open position and vice versa (see in particular Fig. 3 ).
- the actuator 11 and the shut-off element 10 may be part of a control and / or regulating device of a motor vehicle and conveniently operated remotely.
- first functional state (filter state) is set. This is expediently even after the installation of the fuel rail assembly in a motor vehicle and before commissioning or before the final commissioning of the motor vehicle the case.
- first functional state (filter state)
- the passage channel 7 of the filter device 3 is shut off with the aid of the shut-off element 10.
- Fluid and fuel flows via the first pipe section 1 through the inlet end 4 in the filter device 3.
- the fluid or the fuel then flows radially outwardly into an outer annular region 13 of the filter housing 6 and from there through the Filter medium 8 in the output section 9 of the passage channel 7.
- this first functional state (filter state) impurity particles can effectively from the fluid medium or be filtered out of the fuel. It is within the scope of the invention that this first functional state is set in a test run of the motor vehicle engine and that then the fuel is filtered by means of the filter device 3 before the motor vehicle is finally put into operation.
- the second functional state (flow condition) is set, which in the Fig. 2 is shown.
- the shut-off element 10 is transferred to the actuating element 11 in the open position.
- This flow then takes place without filtering and without pressure loss and the filter device 3 is virtually inactive in this state.
- this second functional state (flow-through state) is / are constantly set during the operation of a motor vehicle.
- the filtering of Contamination particles takes place only before commissioning of the motor vehicle from the fluid medium or from the fuel.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtration Of Liquid (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Description
Die Erfindung betrifft ein Kraftstoffleitungsaggregat für Kraftfahrzeuge, mit einer Mehrzahl von Rohrleitungsabschnitten. Die Erfindung bezieht sich insbesondere auf ein Kraftstoffleitungsaggregat für Dieselkraftstoffe bzw. für Dieselmotoren. Die Erfindung betrifft weiterhin auch ein Verfahren zum Betrieb eines Kraftstoffleitungsaggregates.The invention relates to a fuel line assembly for motor vehicles, with a plurality of pipe sections. The invention relates in particular to a fuel line assembly for diesel fuels or for diesel engines. The invention further relates to a method for operating a fuel line assembly.
Kraftstoffleitungsaggregate für Kraftfahrzeuge sind aus der Praxis in unterschiedlichen Ausführungsformen bekannt. Bei der Herstellung der Kraftstoffleitungsaggregate bzw. der Rohrleitungsabschnitte dieser Aggregate fallen Verunreinigungspartikel wie Staubteilchen und dergleichen an. Diese Verunreinigungspartikel bzw. Staubpartikel können im Betrieb des Kraftstoffleitungsaggregates bzw. des zugeordneten Kraftfahrzeuges angeschlossene Komponenten, wie Düsen, Injektoren, Pumpen oder Filter beeinträchtigen und insbesondere verstopfen bzw. blockieren. Deshalb ist es wünschenswert die Kraftstoffleitungsaggregate bzw. die zugehörigen Rohrleitungsabschnitte von solchen Verunreinigungen freizuhalten. Um dies zu erreichen kann die Herstellung der Kraftstoffleitungsaggregate unter besonderen Bedingungen, insbesondere in Reinräumen durchgeführt werden und die hergestellten Komponenten können speziellen Reinigungsmaßnahmen unterzogen werden. Das ist jedoch aufwendig und kostspielig. Außerdem können häufig nicht alle Verunreinigungen ausgeschlossen bzw. beseitigt werden, so dass es in Betrieb der Kraftstoffleitungsaggregate nichtsdestoweniger zu unerwünschten Störungen kommen kann. Aus den Schriften
Demgegenüber liegt der Erfindung das technische Problem zugrunde, ein Kraftstoffleitungsaggregat der eingangs genannten Art anzugeben, bei dem die mit Verschmutzungen bzw. mit Verunreinigungspartikeln auftretenden Probleme effektiv minimiert bzw. ausgeschlossen werden können. Der Erfindung liegt weiterhin das technische Problem zugrunde, ein Verfahren zum Betrieb eines Kraftstoffleitungsaggregates anzugeben.In contrast, the invention, the technical problem underlying a fuel line assembly of the type mentioned above, in which the can effectively be minimized or eliminated with contaminants or problems occurring with impurity particles. The invention is further based on the technical problem of specifying a method for operating a fuel line unit.
Zur Lösung des technischen Problems lehrt die Erfindung ein Kraftstoffleitungsaggregat für Kraftfahrzeuge, insbesondere für Kraftfahrzeuge mit Dieselmotoren, wobei das Kraftstoffleitungsaggregat zumindest zwei Rohrleitungsabschnitte und zumindest eine zwischen den beiden Rohrleitungsabschnitten angeordnete Filtereinrichtung aufweist, wobei fluides Medium bzw. Kraftstoff über einen ersten Rohrleitungsabschnitt der Filtereinrichtung zuführbar ist/zugeführt wird und wobei das fluide Medium bzw. der Kraftstoff über einen zweiten Rohrleitungsabschnitt wieder aus der Filtereinrichtung abführbar ist/abgeführt wird, wobei die Filtereinrichtung zumindest zwei Funktionszustände aufweist, wobei in einem ersten Funktionszustand (Filterzustand) der Filtereinrichtung das durch den ersten Rohrleitungsabschnitt zugeführte fluide Medium bzw. der durch den ersten Rohrleitungsabschnitt zugeführte Kraftstoff mittels zumindest eines Filtermediums der Filtereinrichtung filterbar ist/gefiltert wird und wobei nach Umschaltung der Filtereinrichtung in einen zweiten Funktionszustand (Durchströmzustand) das fluide Medium bzw. der Kraftstoff die Filtereinrichtung über zumindest einen Durchlasskanal ohne Filterung bzw. im Wesentlichen ohne Filterung durchströmt.To solve the technical problem, the invention teaches a fuel line assembly for motor vehicles, especially for motor vehicles with diesel engines, wherein the fuel line assembly has at least two pipe sections and at least one disposed between the two pipe sections filter device, wherein fluid medium or fuel via a first pipe section of the filter device can be fed and wherein the fluid medium or the fuel via a second pipe section is again discharged from the filter device / is discharged, wherein the filter device has at least two functional states, wherein in a first functional state (filter state) of the filter device supplied through the first pipe section Fluid medium or the supplied through the first pipe section fuel is filterable by means of at least one filter medium of the filter device / filtered wi Rd and wherein after switching the filter device into a second functional state (flow-through state), the fluid medium or the fuel flows through the filter device via at least one passage channel without filtering or substantially without filtering.
Grundsätzlich liegt es auch im Rahmen der Erfindung, dass fluides Medium bzw. Kraftstoff auch bzw. alternativ über den zweiten Rohrleitungsabschnitt der Filtereinrichtung zuführbar ist/zugeführt wird und in einem ersten Funktionszustand (Filterzustand) der Filtereinrichtung mittels des zumindest einen Filtermediums der Filtereinrichtung filtrierbar ist/gefiltert wird und dass nach Umschaltung der Filtereinrichtung in einen zweiten Funktionszustand (Durchströmzustand) das fluide Medium bzw. der Kraftstoff die Filtereinrichtung über den zumindest einen Durchlasskanal ohne Filterung bzw. im Wesentlichen ohne Filterung durchströmt. - Mit der Filtereinrichtung bzw. mit dem Filtermedium der Filtereinrichtung können in dem Rohrleitungsaggregat vorhandene und mit dem fluiden Medium bzw. mit dem Kraftstoff mitgeführte Verunreinigungsteilchen herausgefiltert werden. Auf diese Weise kann das Kraftstoffleitungsaggregat in dem ersten Funktionszustand (Filterzustand) von Verunreinigungsteilchen gereinigt werden. - Mit dem Begriff fluides Medium ist im Rahmen der Erfindung auch ein von Kraftstoff verschiedenes fluides Spülmedium bzw. flüssiges Spülmedium gemeint, mit dem das Kraftstoffleitungsaggregat insbesondere vor dem Einbau in ein Kraftfahrzeug zur Ausfilterung von Verunreinigungsteilchen gespült werden kann. Nach Einbau in ein Kraftfahrzeug erfolgt zweckmäßigerweise - insbesondere bei einem Probelauf des Motors des Kraftfahrzeuges - ein Spülen bzw. ein Herausfiltern mit Hilfe von Kraftstoff. Grundsätzlich kann aber auch vor dem Einbau des Kraftstoffleitungsaggregates in ein Kraftfahrzeug Kraftstoff als fluides Spülmedium bzw. flüssiges Spülmedium eingesetzt werden. Wenn nachfolgend von Kraftstoff die Rede ist, ist damit nach einer Ausführungsform der Erfindung auch ein von Kraftstoff verschiedenes fluides bzw. flüssiges Spülmedium gemeint.In principle, it is also within the scope of the invention that fluid medium or fuel can also be fed / supplied to the filter device via the second pipeline section and can be filtered in a first functional state (filter state) of the filter device by means of the at least one filter medium of the filter device. is filtered and that after switching the filter device in a second functional state (flow condition) the fluid medium or the fuel flows through the filter device via the at least one passage channel without filtering or substantially without filtering. - With the filter device or with the filter medium of the filter device existing in the pipeline assembly and entrained with the fluid medium or with the fuel contaminant particles can be filtered out. In this way, in the first functional state (filter state), the fuel line assembly can be cleaned of contaminant particles. In the context of the invention, the term fluid medium also means a fluid rinsing medium or liquid rinsing medium which is different from fuel and with which the fuel line unit can be rinsed, especially before installation in a motor vehicle, for filtering out contamination particles. After installation in a motor vehicle is carried out expediently - especially during a test run of the engine of the motor vehicle - a rinse or a filtering out with the help of fuel. In principle, however, fuel can also be used as a fluid flushing medium or liquid flushing medium prior to installation of the fuel line assembly in a motor vehicle. If fuel is mentioned below, according to one embodiment of the invention, this also means a fluid or liquid flushing medium different from fuel.
Es liegt im Rahmen der Erfindung, dass zumindest ein erfindungsgemäßes Kraftstoffleitungsaggregat in einer aus mehreren Rohrleitungsabschnitten aufgebauten Kraftstoffleitung eingesetzt wird. Fernerhin liegt es im Rahmen der Erfindung, dass ein solches Kraftstoffleitungsaggregat zumindest an beiden Enden einer Kraftstoffleitung vorgesehen ist. Zweckmäßigerweise verbindet die Filtereinrichtung die angeschlossenen Rohrleitungsabschnitte unmittelbar miteinander. Es liegt im Rahmen der Erfindung, dass zwischen zwei Rohrleitungsabschnitten lediglich eine Filtereinrichtung zwischengeschaltet ist. Der erste Funktionszustand der Filtereinrichtung wird hier und nachfolgend auch als Filterzustand bezeichnet und der zweite Funktionszustand der Filtereinrichtung wird hier und nachfolgend auch als Durchströmzustand bezeichnet. Nach einer bewährten Ausführungsform weist eine Filtereinrichtung lediglich zwei Funktionszustände (Filterzustand und Durchströmzustand) auf.It is within the scope of the invention that at least one inventive fuel line assembly is used in a constructed of a plurality of pipe sections fuel line. Furthermore, it is within the scope of the invention that such a fuel line assembly is provided at least at both ends of a fuel line. Conveniently, the filter device connects the connected pipe sections directly to each other. It is within the scope of the invention that only one filter device is interposed between two pipe sections. The first functional state of the filter device is here and below as Designated filter state and the second functional state of the filter device is referred to here and below as Durchströmzustand. According to a proven embodiment, a filter device has only two functional states (filter state and flow state).
Der Erfindung liegt die Erkenntnis zugrunde, dass mit einem erfindungsgemäßen Kraftstoffleitungsaggregat die mit Verunreinigungen einer Kraftstoffleitung auftretenden Probleme einfach und effektiv minimiert bzw. ausgeschlossen werden können. Bei Realisierung eines solchen erfindungsgemäßen Kraftstoffleitungsaggregates wird weder der Herstellungsprozess für eine Kraftstoffleitung noch die Betriebsweise des Kraftfahrzeugmotors oder des Kraftstoffversorgungssystems des Kraftfahrzeuges negativ beeinflusst. Wie weiter unten noch erläutert wird bei Inbetriebnahme eines Kraftfahrzeuges zweckmäßigerweise der zweite Funktionszustand bzw. der Durchströmzustand des Aggregates eingestellt. Somit werden im Rahmen der Erfindung Reinigungsmaßnahmen auf einfache und kostengünstige Weise verwirklicht, ohne dass bei Inbetriebnahme eines Kraftfahrzeuges ein nachteilhafter Druckverlust bei der Zuführung von Kraftstoffen resultiert.The invention is based on the finding that with a fuel line assembly according to the invention, the problems occurring with impurities in a fuel line can be minimized or eliminated simply and effectively. In the realization of such a fuel line assembly according to the invention neither the production process for a fuel line nor the operation of the motor vehicle engine or the fuel supply system of the motor vehicle is adversely affected. As will be explained below, the second functional state or the flow-through state of the unit is expediently set when the motor vehicle is put into operation. Thus, cleaning measures are realized in a simple and cost-effective manner within the scope of the invention, without resulting in a commissioning of a motor vehicle, a disadvantageous pressure loss in the supply of fuels.
Als Filtermedium für die Filtereinrichtung des erfindungsgemäßen Kraftstoffleitungsaggregates können im Rahmen der Erfindung grundsätzlich verschiedenen Materialien eingesetzt werden. Nach einer Ausführungsform der Erfindung wird zumindest ein Fasermaterial als Filtermedium verwendet. So können beispielsweise Vliesstoffe aus Kunststofffasern als Filtermedium eingesetzt werden oder mehrlagige Filtermedien aus Vlies und Papier. Auch Papiere aus mit speziellen Harzen imprägnierten Cellulosefasern eignen sich für das Filtermedium der Filtereinrichtung.As a filter medium for the filter device of the fuel line assembly according to the invention fundamentally different materials can be used in the invention. According to one embodiment of the invention, at least one fiber material is used as the filter medium. For example, nonwovens made of synthetic fibers can be used as the filter medium or multilayer filter media made of nonwoven and paper. Papers made of cellulose fibers impregnated with special resins are also suitable for the filter medium of the filter device.
Zweckmäßigerweise haben die Rohrleitungsabschnitte einen kreisförmigen Querschnitt bzw. einen im Wesentlichen kreisförmigen Querschnitt. Empfohlenermaßen bestehen die Rohrleitungsabschnitte des Kraftstoffleitungsaggregates aus Kunststoff bzw. im Wesentlichen aus Kunststoff. Bevorzugt werden die Rohrleitungsabschnitte durch Extrusion bzw. Coextrusion hergestellt. Gemäß einer Ausführungsform besteht auch die Filtereinrichtung bzw. besteht das Filtergehäuse der Filtereinrichtung aus Kunststoff bzw. im Wesentlichen aus Kunststoff.Conveniently, the pipe sections have a circular cross section or a substantially circular cross section. Empfohlenermaßen the pipe sections of the fuel rail assembly made of plastic or substantially of plastic. The pipe sections are preferably produced by extrusion or coextrusion. According to one embodiment, the filter device or the filter housing of the filter device consists of plastic or essentially of plastic.
Es liegt im Rahmen der Erfindung, dass das erfindungsgemäße Kraftstoffleitungsaggregat nach seiner Herstellung in den ersten Funktionszustand (Filterzustand) geschaltet ist/geschaltet wird. Es liegt weiterhin im Rahmen der Erfindung, dass das Kraftstoffleitungsaggregat auch bei bzw. nach Einbau in ein Kraftfahrzeug in diesem ersten Funktionszustand (Filterzustand) verbleibt. Es empfiehlt sich, dass der erste Funktionszustand (Filterzustand) auch bei zumindest einem Probelauf des Motors des Kraftfahrzeuges eingestellt bleibt. Dann können Verunreinigungen bzw. Verunreinigungspartikel effektiv aus dem Kraftstoffleitungsaggregat entfernt werden, in dem der Kraftstoff das Filtermedium der Filtereinrichtung durchströmt. Es liegt im Rahmen der Erfindung, dass der zweite Funktionszustand (Durchströmzustand) erst nach der Inbetriebnahme bzw. nach der endgültigen Inbetriebnahme des Kraftfahrzeuges eingestellt ist/eingestellt wird.It is within the scope of the invention that the fuel line assembly according to the invention is switched / switched after its production in the first functional state (filter state). It is also within the scope of the invention that the fuel line assembly also remains in this first functional state (filter state) during or after installation in a motor vehicle. It is recommended that the first functional state (filter state) also remains set for at least one test run of the engine of the motor vehicle. Then, impurities can be effectively removed from the fuel rail assembly in which the fuel flows through the filter medium of the filter device. It is within the scope of the invention that the second functional state (Durchströmzustand) is set / set after commissioning or after the final commissioning of the motor vehicle.
Zweckmäßigerweise ist der Durchlasskanal der Filtereinrichtung im ersten Funktionszustand (Filterzustand) mit zumindest einem Absperrelement verschlossen. Vorzugsweise ist nach/bei der Umschaltung von dem ersten Funktionszustand (Filterzustand) in den zweiten Funktionszustand (Durchströmzustand) der Durchlasskanal geöffnet bzw. ist/wird der Durchlasskanal mittels des Absperrelementes geöffnet. Es empfiehlt sich, dass das Absperrelement in Bezug auf die Strömungsrichtung am Eingang bzw. am Anfang des Durchlasskanals angeordnet ist. Bei dem Absperrelement kann es sich insbesondere um einen Absperrschieber handeln, der zweckmäßigerweise in das Steuer- und/oder Regelsystem des Kraftfahrzeuges integriert ist.Appropriately, the passage channel of the filter device in the first functional state (filter state) is closed with at least one shut-off element. Preferably, after / at the switching from the first functional state (filter state) to the second functional state (flow-through state), the passage channel is opened or the passage channel is opened by means of the shut-off element. It is recommended that the shut-off element is arranged with respect to the flow direction at the entrance or at the beginning of the passage channel. The shut-off element may in particular be a gate valve, which is expediently integrated in the control and / or regulating system of the motor vehicle.
Erfindungsgemäß weist der Durchlasskanal die gleiche Strömungsquerschnittsfläche bzw. im Wesentlichen die gleiche Strömungsquerschnittsfläche wie der erste Rohrleitungsabschnitt und/oder der zweite Rohrleitungsabschnitt auf. Dadurch wird sichergestellt, dass im zweiten Funktionszustand (Durchströmzustand) das fluide Medium bzw. der Kraftstoff ohne Druckverlust bzw. im Wesentlichen ohne Druckverlust durch das Kraftstoffleitungsaggregat geführt wird. Zweckmäßigerweise entspricht der Durchlasskanal bzw. der Innenraum des Durchlasskanals im Hinblick auf seine Größe und/oder seine Form dem ersten Rohrleitungsabschnitt und/oder dem zweiten Rohrleitungsabschnitt bzw. dem Innenraum des ersten Rohrleitungsabschnittes und/oder des zweiten Rohrleitungsabschnittes. Es liegt im Rahmen der Erfindung, dass der Durchlasskanal mit dem ersten Rohrleitungsabschnitt und/oder mit dem zweiten Rohrleitungsabschnitt fluchtet.According to the invention, the passage channel has the same flow cross-sectional area or substantially the same flow cross-sectional area as the first pipeline section and / or the second pipeline section. This ensures that in the second functional state (flow-through state) the fluid medium or the fuel is passed through the fuel line assembly without pressure loss or substantially without pressure loss. Expediently, the passage channel or the interior of the passage channel corresponds in terms of its size and / or its shape to the first pipe section and / or the second pipe section or the interior of the first pipe section and / or the second pipe section. It is within the scope of the invention that the passage channel is aligned with the first pipe section and / or with the second pipe section.
Gemäß bevorzugter Ausführungsform der Erfindung ist das Filtermedium der Filtereinrichtung neben dem Durchflusskanal bzw. unmittelbar neben dem Durchflusskanal angeordnet. Vorzugsweise steht dabei das Filtermedium in Fluidverbindung bzw. in unmittelbarer Fluidverbindung mit dem Durchlasskanal. So strömt das fluide Medium bzw. der Kraftstoff im ersten Funktionszustand (Filterzustand) zunächst durch das Filtermedium der Filtereinrichtung und anschließend durch den Durchflusskanal aus der Filtereinrichtung heraus.According to a preferred embodiment of the invention, the filter medium of the filter device is arranged next to the flow channel or directly next to the flow channel. Preferably, the filter medium is in fluid communication or in direct fluid communication with the passageway. Thus, in the first functional state (filter state), the fluid medium or the fuel first flows out through the filter medium of the filter device and then out of the filter device through the flow channel.
Erfindungsgemäß umgibt das Filtermedium der Filtereinrichtung den Durchlasskanal über zumindest einen Teil, bevorzugt über einen Großteil seines Umfanges und sehr bevorzugt über den gesamten Umfang des Durchlasskanals. Der Durchlasskanal ist zweckmäßigerweise mittig bzw. zentralmittig in der Filtereinrichtung bzw. in dem Filtergehäuse der Filtereinrichtung angeordnet. Vorzugsweise sind Durchlasskanal und Filtermedium in der Filtereinrichtung bzw. in dem Filtergehäuse der Filtereinrichtung koaxial zueinander angeordnet.According to the invention, the filter medium of the filter device surrounds the passage channel over at least one part, preferably over a large part of its circumference and very preferably over the entire circumference of the passage channel. The passageway is suitably arranged centrally or centrally in the filter device or in the filter housing of the filter device. Preferably, passage channel and filter medium in the filter device or in the filter housing of the filter device are arranged coaxially to each other.
Es liegt im Rahmen der Erfindung, dass in dem ersten Funktionszustand (Filterzustand) das über den ersten Rohrleitungsabschnitt zugeführte fluide Medium bzw. der über den ersten Rohrleitungsabschnitt zugeführte Kraftstoff durch das Filtermedium der Filtereinrichtung in einen Ausgangsabschnitt des Durchlasskanals bzw. unmittelbar in einen Ausgangsabschnitt des Durchlasskanals und von dort in den zweiten Rohrleitungsabschnitt strömt. Somit liegt es im Rahmen der Erfindung, dass der Durchlasskanal auch im ersten Funktionszustand (Filterzustand) aktiv bzw. von dem fluiden Medium/von dem Kraftstoff durchströmt wird.It is within the scope of the invention that in the first functional state (filter state) the fluid medium supplied via the first pipeline section or the fuel supplied via the first pipeline section passes through the filter medium of the filter device into an exit section of the passageway or directly into an outlet section of the passageway and from there flows into the second pipe section. Thus, it is within the scope of the invention that the passage channel is also active in the first functional state (filter state) or through which the fluid / fuel flows.
Gegenstand der Erfindung ist auch ein Verfahren zum Betrieb eines Kraftstoffleitungsaggregates, wobei das Kraftstoffleitungsaggregat zumindest eine Filtereinrichtung mit zumindest einem Einlassende und mit zumindest einem Auslassende aufweist, wobei an das Einlassende ein erster Rohrleitungsabschnitt und an das Auslassende ein zweiter Rohrleitungsabschnitt angeschlossen ist, wobei in einem ersten Funktionszustand (Filterzustand) der Filtereinrichtung ein fluides Medium - insbesondere flüssiger Kraftstoff - durch das Kraftstoffleitungsaggregat geleitet wird und das fluide Medium/der Kraftstoff zumindest ein Filtermedium der Filtereinrichtung durchströmt, so dass in dem Kraftstoffleitungsaggregat enthaltene Verunreinigungsteilchen, insbesondere Verunreinigungsteilchen aus dem Herstellungsprozess des Kraftstoffleitungsaggregates, mit dem Filtermedium der Filtereinrichtung herausgefiltert werden.The invention also relates to a method for operating a fuel line assembly, wherein the fuel line assembly has at least one filter device with at least one inlet end and at least one outlet end, wherein at the inlet end a first pipe section and at the outlet end a second pipe section is connected, wherein in a first Function state (filter state) of the filter device, a fluid medium - in particular liquid fuel - is passed through the fuel line and the fluid medium / the fuel flows through at least one filter medium of the filter device, so that contained in the fuel line assembly impurity particles, in particular impurity particles from the manufacturing process of the fuel line unit, with be filtered out of the filter medium of the filter device.
Es liegt im Rahmen der Erfindung, dass nach der Herstellung des Kraftstoffleitungsaggregates der erste Funktionszustand (Filterzustand) eingestellt ist/wird. Es liegt fernerhin im Rahmen der Erfindung, dass das erfindungsgemäße Kraftstoffleitungsaggregat in ein Kraftfahrzeug eingebaut wird und dann vorzugsweise bis zur Inbetriebnahme bzw. bis zur endgültigen Inbetriebnahme des Kraftfahrzeuges der erste Funktionszustand (Filterzustand) eingestellt bleibt. Weiterhin liegt es im Rahmen der Erfindung, dass zumindest nach Inbetriebnahme bzw. nach endgültiger Inbetriebnahme des Kraftfahrzeuges der zweite Funktionszustand (Durchströmzustand) eingestellt wird, in welchem Durchströmzustand Kraftstoff die Filtereinrichtung ohne Filterung bzw. im Wesentlichen ohne Filterung und vor allem ohne einen damit verbundenen Druckverlust durchströmt. In diesem zweiten Funktionszustand ist die Filterfunktion der Filtereinrichtung gleichsam inaktiv. Zweckmäßigerweise bleibt der erste Funktionszustand (Filterzustand) bei zumindest einem Probelauf des Kraftfahrzeugmotors bzw. des Kraftfahrzeuges eingestellt. Erst danach - das heißt bei endgültiger Inbetriebnahme des Kraftfahrzeuges - wird zweckmäßigerweise der zweite Funktionszustand (Durchströmzustand) eingestellt. Empfohlenermaßen bleibt der zweite Funktionszustand (Durchströmzustand) dann dauerhaft eingestellt.It is within the scope of the invention that after the production of the fuel line assembly, the first functional state (filter state) is set / is. It is furthermore within the scope of the invention that the fuel line assembly according to the invention is installed in a motor vehicle and then preferably the first functional state (filter state) is set until commissioning or until the final startup of the motor vehicle. Furthermore, it is within the scope of the invention that, at least after commissioning or after final startup of the motor vehicle, the second functional state (flow-through state) is set, in which flow-through state fuel the filter device without filtering or essentially without filtering and above all without an associated pressure loss flows through. In this second functional state, the filter function of the filter device is virtually inactive. The first functional state (filter state) expediently remains set during at least one test run of the motor vehicle engine or of the motor vehicle. Only then - that is at final commissioning of the motor vehicle - is expediently the second functional state (flow condition) set. Empfohlenermaßen the second functional state (flow condition) then remains permanently set.
Der Erfindung liegt die Erkenntnis zugrunde, dass mit dem erfindungsgemäßen Kraftstoffleitungsaggregat und mit dem erfindungsgemäßen Verfahren Verunreinigungen des Kraftstoffleitungsaggregates vor Inbetriebnahme des Kraftfahrzeuges einfach und effektiv entfernt werden können. Das gilt insbesondere für Verunreinigungspartikel aus dem Herstellungsprozess des Kraftstoffleitungsaggregates. Insoweit wird mit der Erfindung ein wirksamer Schutz vor Kontamination verwirklicht. Im Vergleich zu bekannten Maßnahmen kann bei Realisierung der erfindungsgemäßen Maßnahmen eine Beeinträchtigung von Fahrzeugkomponenten - wie Düsen, Injektoren, Filter, Pumpen und dergleichen - durch Verunreinigungen wirksam vermieden werden. Hervorzuheben ist, dass das erfindungsgemäße Kraftstoffleitungsaggregat und das erfindungsgemäße Verfahren mit einfachen, wenig aufwendigen und kostengünstigen Maßnahmen realisieren lassen.The invention is based on the finding that with the fuel line assembly according to the invention and with the method according to the invention, contaminants of the fuel line assembly can be removed simply and effectively before the motor vehicle is put into operation. This is especially true for impurity particles from the manufacturing process of the fuel rail assembly. In that regard, an effective protection against contamination is realized with the invention. Compared to known measures can in the implementation of the inventive measures an impairment of vehicle components - such as nozzles, injectors, filters, pumps and the like - Effectively avoided by contamination. It should be emphasized that the fuel line assembly according to the invention and the method according to the invention can be implemented with simple, inexpensive and cost-effective measures.
Nachfolgend wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert. Es zeigen in schematischer Darstellung:
- Fig. 1
- einen Schnitt durch ein erfindungsgemäßes Kraftstoffleitungsaggregat in einem ersten Funktionszustand (Filterzustand),
- Fig. 2
- den Gegenstand nach
Fig. 1 in einem zweiten Funktionszustand (Durchströmzustand) und - Fig. 3
- einen Schnitt A-A durch den Gegenstand gemäß
Fig. 1 .
- Fig. 1
- a section through a fuel line assembly according to the invention in a first functional state (filter state),
- Fig. 2
- the object after
Fig. 1 in a second functional state (flow state) and - Fig. 3
- a section AA through the object according to
Fig. 1 ,
Die Figuren zeigen ein erfindungsgemäßes Kraftstoffleitungsaggregat für nicht näher dargestellte Kraftfahrzeuge, insbesondere für Kraftfahrzeuge mit Dieselmotoren. Das Kraftstoffleitungsaggregat weist zwei Rohrleitungsabschnitte 1, 2 und eine zwischen den Rohrleitungsabschnitten 1, 2 angeordnete Filtereinrichtung 3 auf. Ein erster Rohrleitungsabschnitt 1 ist an ein Einlassende 4 der Filtereinrichtung 3 angeschlossen und ein zweiter Rohrleitungsabschnitt ist an ein Auslassende 5 der Filtereinrichtung angeschlossen. Die Rohrleitungsabschnitte 1, 2 bestehen zweckmäßigerweise aus Kunststoff und haben vorzugsweise einen kreisförmigen Querschnitt.The figures show an inventive fuel line assembly for non-illustrated motor vehicles, especially for motor vehicles with diesel engines. The fuel line assembly has two pipe sections 1, 2 and a
Die die Rohrleitungsabschnitte 1, 2 verbindende Filtereinrichtung 3 weist bevorzugt und im Ausführungsbeispiel ein zylinderförmiges Filtergehäuse 6 auf.The
Empfohlenermaßen und im Ausführungsbeispiel verläuft mittig bzw. zentralmittig durch das Filtergehäuse 6 ein Durchlasskanal 7 für das fluide Medium bzw. für den Kraftstoff. Vorzugsweise und im Ausführungsbeispiel weist der Durchlasskanal 7 die gleiche Strömungsquerschnittsfläche auf wie der erste Rohrleitungsabschnitt 1 und wie der zweite Rohrleitungsabschnitt 2 und der Durchlasskanal 7 fluchtet bevorzugt mit den Rohrleitungsabschnitten 1, 2. Empfohlenermaßen und im Ausführungsbeispiel läuft über den Umfang des Durchlasskanals 7 ein Filtermedium 8 der Filtereinrichtung 3 um. Somit sind nach bevorzugter Ausführungsform und im Ausführungsbeispiel Durchlasskanal 7 und Filtermedium 8 koaxial zueinander angeordnet. Es liegt im Rahmen der Erfindung, dass das Filtermedium 8 in Fluidverbindung mit dem Durchlasskanal 7 steht und zwar im Bereich des Ausgangsabschnitts 9 des Durchlasskanals 7.Empfohlenermaßen and in the embodiment extends centrally or centrally through the filter housing 6, a
Im Ausführungsbeispiel ist ein als Absperrschieber ausgebildetes Absperrelement 10 vorgesehen, mit dem der Durchlasskanal 7 an seinem Einlass absperrbar ist. Zweckmäßigerweise und im Ausführungsbeispiel ist ein Stellelement an das Absperrelement 10 angeschlossen. Mit Hilfe des Stellelementes 11 ist der Absperrschieber bzw. das Absperrelement 10 bevorzugt und im Ausführungsbeispiel um eine Schwenkachse 12 verschwenkbar und von einer geschlossenen Position in eine geöffnete Position und umgekehrt überführbar (siehe insbesondere
Nach der Herstellung des erfindungsgemäßen Kraftstoffleitungsaggregates ist zunächst der in der
Vor bzw. bei Inbetriebnahme des Kraftfahrzeuges wird dann der zweite Funktionszustand (Durchströmzustand) eingestellt, der in der
Mit dem erfindungsgemäßen Kraftstoffleitungsaggregat können somit Verunreinigungen aus dem Aggregat effektiv und einfach entfernt werden, ohne dass bei Betrieb des Kraftfahrzeuges die Funktion der Kraftstoffzuführung in irgendeiner Weise - insbesondere durch einen Druckverlust oder dergleichen - beeinträchtigt wird. Hervorzuheben ist, dass die erfindungsgemäßen Maßnahmen einfach und kostengünstig realisierbar sind.With the fuel line assembly according to the invention thus impurities from the unit can be effectively and easily removed without the operation of the motor vehicle, the function of the fuel supply in any way - in particular by a pressure drop or the like - is impaired. It should be emphasized that the inventive measures are simple and inexpensive to implement.
Claims (11)
- A fuel line unit for motor vehicles, in particular for motor vehicles with a diesel engine, with two pipe sections (1, 2) and at least one filter device (3) arranged between the two pipe sections (1, 2), wherein a fluid medium or fuel can be supplied to the filter device (3) via a first pipe section (1), and wherein the fluid medium or fuel can be removed from the filter device (3) via a second pipe section (2), wherein the filter device (3) has at least two functional states, wherein the supplied fluid medium or supplied fuel can be filtered in a first functional state of the filter device (3) by means of at least one filter medium (8) of the filter device (3), and wherein, after the filter device (3) has been switched into a second functional state, the fluid medium or fuel flows through the filter device (3) via at least one through channel (7) without filtration or essentially without filtration,
wherein the through channel (7) has the same flow cross sectional area or essentially the same flow cross sectional area as the first pipe section (1) and/or the second pipe section (2), so that, in the second functional state, the fluid medium or fuel is guided through the fuel line unit without any pressure loss or essentially without any pressure loss,
characterized in that the filter medium (8) of the filter device (3) envelops the through channel (7) over at least a portion of its circumference. - The fuel line unit according to claim 1, wherein the pipe sections (1, 2) are made out of plastic or essentially out of plastic, and are preferably manufactured via extrusion or coextrusion.
- The fuel line unit according to one of claims 1 or 2, wherein the through channel (7) is closed with at least one locking element (10) in the first functional state, and wherein the through channel (7) is opened following the switchover from the first functional state into the second functional state.
- The fuel line unit according to one of claims 1 to 3, wherein the through channel (7) aligns flush with the first pipe section (1) and/or with the second pipe section (2).
- The fuel line unit according to one of claims 1 to 4, wherein the filter medium of the filter device (3) is arranged next to the through channel (7), and preferably in fluidic connection or in directly fluidic connection with the through channel (7).
- The fuel line unit according to one of claims 1 to 5, wherein the fluid medium/fuel supplied via the first pipe section (1) in the first functional state flows through the filter medium (8) of the filter device (3) into an output section (9) of the through channel (7), and from there into the second pipe section (2).
- A method for operating a fuel line unit, in particular according to one of claims 1 to 6, wherein the fuel line unit has at least one filter device (3) with at least one inlet end (4) and with at least one outlet end (5), wherein a first pipe section (1) is connected to the inlet end (4), and a second pipe section (2) is connected to the outlet end (5), wherein a fluid medium-in particular liquid fuel-is guided through the fuel line unit in a first functional state of the filter device (3), and the fluid medium/fuel flows through at least one filter medium (8) of the filter device (3), so that contaminant particles contained in the fuel line unit, in particular contaminant particles from the process of manufacturing the fuel line unit, are filtered out with the filter medium (8),
and wherein, after the filter device (3) has been switched over to a second functional state, the fluid medium or fuel flows through the filter device through at least one outlet channel (7) without filtration or essentially without filtration,
wherein the through channel (7) has the same flow cross sectional area or essentially the same cross sectional area as the first pipe section (1) and/o the second pipe section (2), so that, in the second functional state, the fluid medium or fuel is guided through the fuel line unit without pressure loss or essentially without pressure loss,
characterized in that the filter medium (8) of the filter device (3) envelops the through channel (7) over at least a portion of its periphery. - The method according to claim 7, wherein the first functional state is/will be set after the fuel line unit has been manufactured, wherein the fuel line unit is built into a motor vehicle, and wherein the second functional state is set at least after the motor vehicle has bene started up, in which the fluid medium or fuel flows through the filter device (3) without filtration or essentially without filtration.
- The method according to one of claims 7 or 8, wherein the first functional state is set during a trial run of the motor vehicle or motor vehicle engine.
- The method according to one of claims 7 to 9, wherein the second functional state remains permanently set or essentially permanently set after the final startup of the motor vehicle.
- A fuel line for a motor vehicle, in particular for a motor vehicle with a diesel engine, wherein at least one respective fuel line unit according to one of claims 1 to 7 is provided at two ends of the fuel line.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13197668.0A EP2886844B1 (en) | 2013-12-17 | 2013-12-17 | Fuel conduit device and method for operating a fuel conduit device |
US14/573,886 US20150167605A1 (en) | 2013-12-17 | 2014-12-17 | Fuel line assembly and method for operating a fuel line assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13197668.0A EP2886844B1 (en) | 2013-12-17 | 2013-12-17 | Fuel conduit device and method for operating a fuel conduit device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2886844A1 EP2886844A1 (en) | 2015-06-24 |
EP2886844B1 true EP2886844B1 (en) | 2018-05-02 |
Family
ID=49886637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13197668.0A Active EP2886844B1 (en) | 2013-12-17 | 2013-12-17 | Fuel conduit device and method for operating a fuel conduit device |
Country Status (2)
Country | Link |
---|---|
US (1) | US20150167605A1 (en) |
EP (1) | EP2886844B1 (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3112262A (en) * | 1960-07-12 | 1963-11-26 | New York Business Dev Corp | Filter unit and filter cartridge therefor |
US4388196A (en) * | 1980-08-14 | 1983-06-14 | Claude A. Patalidis | Filter with heat controlled fluid flow bypass |
DE19809989A1 (en) * | 1998-03-09 | 1999-09-16 | Mann & Hummel Filter | Filter unit valve especially a bypass valve for a liquid filter e.g. for filtering I.C. engine fuel or lubricating oil |
DE102005042285A1 (en) * | 2005-09-06 | 2007-03-08 | Mahle International Gmbh | Lubricating oil and fuel filter for combustion engine, has bypass-valve designed as inner tube valve comprising tube that stretchably encompasses pipe connection, which is lying within tube and provided with radial passage opening |
DE202006002952U1 (en) * | 2006-02-22 | 2007-07-05 | Mann + Hummel Gmbh | fluid system |
DE502007004018D1 (en) * | 2007-06-21 | 2010-07-15 | Ford Global Tech Llc | Method and device for cleaning a medium line |
-
2013
- 2013-12-17 EP EP13197668.0A patent/EP2886844B1/en active Active
-
2014
- 2014-12-17 US US14/573,886 patent/US20150167605A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
US20150167605A1 (en) | 2015-06-18 |
EP2886844A1 (en) | 2015-06-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3525907B1 (en) | Filter device | |
DE102011111457B4 (en) | filter device | |
EP3213803B1 (en) | Filter assembly | |
EP1546513A1 (en) | Ring filter element for a liquid filter | |
DE102011119868A1 (en) | filter means | |
DE102014000903B4 (en) | Filter element and filter device | |
DE102008001635A1 (en) | Blending valve and device for the treatment of fluids | |
EP3589382B1 (en) | Filter device | |
DE202016103007U1 (en) | Oil circuit with filters especially for marine engines | |
EP1246680B1 (en) | Filter device | |
EP3145618B1 (en) | Filter device | |
DE102006014035A1 (en) | Fuel injection system for use in motor vehicle, has screen filter arranged in fuel discharge and/or in fuel supply of fuel high pressure storage, where filter is geometrically designed in such a manner that it obtains throttle effect | |
DE19545133A1 (en) | Fuel filter, especially for diesel fuel | |
EP3787769B1 (en) | Fuel filter element and filter assembly | |
DE102007037525A1 (en) | Oil filter system for internal combustion engine of motor vehicle, has filter element arrangement operated in different operating positions with filter effects, and controller for controlling arrangement depending on degree of contamination | |
EP0517945A1 (en) | Back-wash filter apparatus | |
EP2228469A1 (en) | Filter device for a textile machine for the production of cross-wound spools | |
DE202005019664U1 (en) | Pressure candle filter for continuous flow liquids has efficient cleaning by sequential back-flushing of pairs of candle elements and use of venturi type inducer on flush outlet | |
EP2886844B1 (en) | Fuel conduit device and method for operating a fuel conduit device | |
DE102013223352A1 (en) | liquid filters | |
DE69906587T2 (en) | LIQUID FILTER | |
DE102009001564A1 (en) | Throttle element for low-pressure circuit of common rail system of motor vehicle, has filter element provided at section of throttle element, where section is provided upstream of throttle opening | |
EP2125147A1 (en) | Filter device | |
DE102005058109A1 (en) | Filter unit, especially for purifying oil in automobile gearbox, comprises filter element between oil inlet and outlet and by-pass line with valve element released when specific pressure difference is first exceeded | |
DE102017001100A1 (en) | Fluid filter with a filter cartridge with a pre and a main filter element |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20141106 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
17Q | First examination report despatched |
Effective date: 20170623 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
INTG | Intention to grant announced |
Effective date: 20171208 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP Ref country code: AT Ref legal event code: REF Ref document number: 995531 Country of ref document: AT Kind code of ref document: T Effective date: 20180515 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502013010054 Country of ref document: DE Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20180502 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180802 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180502 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180802 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180502 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180502 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180502 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180502 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180502 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180502 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180803 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180502 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180502 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180502 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180502 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180502 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180502 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180502 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502013010054 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180502 Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180502 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20190205 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180502 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20181217 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20181217 Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180502 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20181231 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20181217 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20181231 Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180502 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20181231 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20181217 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20181231 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180502 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 995531 Country of ref document: AT Kind code of ref document: T Effective date: 20181217 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180502 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20181217 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180502 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20131217 Ref country code: MK Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180502 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180502 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180902 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230524 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20231221 Year of fee payment: 11 Ref country code: DE Payment date: 20231219 Year of fee payment: 11 |