EP1738068B1 - Delivery unit - Google Patents
Delivery unit Download PDFInfo
- Publication number
- EP1738068B1 EP1738068B1 EP05707867A EP05707867A EP1738068B1 EP 1738068 B1 EP1738068 B1 EP 1738068B1 EP 05707867 A EP05707867 A EP 05707867A EP 05707867 A EP05707867 A EP 05707867A EP 1738068 B1 EP1738068 B1 EP 1738068B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- delivery unit
- shaped elements
- unit according
- baffle
- elements
- 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.)
- Expired - Fee Related
Links
- 239000000446 fuel Substances 0.000 claims abstract description 26
- 230000004323 axial length Effects 0.000 claims description 13
- 238000001914 filtration Methods 0.000 description 11
- 239000002828 fuel tank Substances 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005755 formation reaction Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000003313 weakening effect Effects 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
- F02M37/04—Feeding by means of driven pumps
- F02M37/08—Feeding by means of driven pumps electrically driven
- F02M37/10—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
- F02M37/106—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir the pump being installed in a sub-tank
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- 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
- F02M37/02—Feeding by means of suction apparatus, e.g. by air flow through carburettors
- F02M37/025—Feeding by means of a liquid fuel-driven jet pump
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- 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
- F02M37/44—Filters structurally associated with pumps
-
- 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
- F02M37/50—Filters arranged in or on fuel tanks
Definitions
- the invention relates to a delivery unit with a swirl pot, a fuel pump arranged therein and arranged at the bottom of the swirl pot radially flowed filter, which is formed by axially protruding from the bottom of the swirl pot mold elements, so that in each case formed an axially extending gap between each two adjacent mold elements is, and surrounds a arranged in the bottom of the baffle inlet opening.
- the delivery unit serves to convey fuel from the fuel tank to an internal combustion engine of a motor vehicle.
- a filter ring is arranged at the bottom of the swirl pot.
- the filter ring is formed by projections provided at the bottom of the swirl pot ( WO 96/41727 ). These projections are arranged at a distance from each other and at the same time serve as a footprint for the swirl pot.
- the formations form a filter with axially extending gaps, which is flowed radially.
- the inlet opening through which the pre-filtered fuel enters the swirl pot is located within this ring of moldings.
- the width of the axially extending column is a measure of the degree of filtering of the gap filter.
- the disadvantage of this device is that due to the small width of the axially extending column, the flow cross-section for the fuel flowing to the inlet opening is reduced. In order to ensure sufficient supply of the intake opening with fuel, a certain flow cross section must not be exceeded. As a result, the gap width can not be chosen arbitrarily small, so that the filter degree of the split filter is limited.
- the present invention is therefore an object of the invention to provide a conveyor unit with a filter that provides both sufficient fuel for the intake port and has a high degree of filtration.
- the object is achieved in that perpendicular to the columns and perpendicular to the flow direction at least one region is arranged to flow through, and in that the at least one region connects at least two adjacent gaps in the axial extent, that the regions for flowing through at least one, preferably three, arranged at the bottom of the baffle uprising elements having a greater axial length than the mold elements are formed, and that the regions by molding elements different axial lengths are formed.
- the areas can thus be produced with little effort and thus cost, when the swirl pot sits with the riot elements on the tank bottom.
- the difference between the axial length of the riot elements and the mold elements determines the distance of the mold elements to the tank bottom, resulting in the areas for flowing through.
- the regions are formed by shaped elements with different axial lengths, it is sufficient to form at least one, preferably three, shaped elements with a greater axial length. With very many form elements, 5% to 50% of the form elements can also have a greater axial length. These mold elements sit on the tank bottom, while the other form elements are arranged at a distance from the tank bottom, so that between the end faces the axially shorter form elements and the tank bottom form the areas for flowing through.
- An increase in the degree of filtering can be achieved in a simple manner by the arrangement of the mold elements with respect to the flow direction in several consecutive rows.
- a staggered in the flow arrangement of the form elements in successive rows causes a labyrinth formation, whereby the degree of filtering can also be improved.
- a selective filter is achieved by arranging mold elements of equal axial length in a row. It is advantageous if the form elements of the radially outer row have a smaller axial length than the form elements of the radially inner rows.
- the filter degree can be influenced by the fact that the gaps located between the form elements are designed differently in their length and width.
- a simple design of the form elements allows the arrangement in segments at the bottom of the swirl pot. Since the design of the form elements determines the degree of filtration, there is a further advantage in that the delivery unit can be adapted to the corresponding conditions of use solely by targeted selection of suitable segments with regard to the degree of filtration.
- this embodiment allows the replacement of the segments, while the swirl pot can be maintained unchanged. The replacement of the segments can be realized for example by appropriate use in the injection molds.
- the adaptation to different conditions of use is facilitated if the segments are detachably connected to the swirl pot, preferably by means of locking or plug connections.
- a detachable connection of the segments on the swirl pot also allows a replacement of the segments, especially in case of wear or clogging of the filter.
- a weakening of the degree of filtering is avoided if the distance of second adjacent segments is not greater than the distance of the mold elements from each other.
- the form elements can be arranged in one or more rows on one segment or on several segments on a segment, wherein the segments are also arranged in the flow direction in a plurality of rows.
- the filter no longer has to be arranged exclusively at the radially outer end of the surge pot bottom.
- the invention allows the arrangement of the mold elements directly in the region of the inlet opening.
- the filter may also be formed star-shaped or polygon.
- the fuel tank 1 shown in FIG. 1 contains a delivery unit 2.
- the delivery unit 2 is fitted with an opening 3 of the fuel tank 1, a flange 4 closing the opening 3 in the fuel tank 1.
- the conveyor unit 2 comprises a surge pot 5 for receiving fuel and arranged therein a fuel pump 6, which promotes the fuel to an internal combustion engine, not shown, of the motor vehicle.
- the swirl pot 5 it is conceivable to use the swirl pot 5 in a suction unit in which the fuel pump is arranged outside the swirl pot.
- riot elements 8 are formed, with which the sound pot 5 is seated on the tank bottom 9. Also formed on the bottom 7 of the swirl pot 5 form elements 10 are arranged at intervals to each other so that two adjacent mold elements 10 each include a gap 11. A smaller axial extent of the mold elements 10 relative to the riot elements 8 causes the formation of regions 12 between the mold elements 10 and the tank bottom 9, so that fuel can flow through the gaps 11 and the regions 12. The column 11 and the regions 12 are chosen so small that contained in the fuel particles are retained by the mold elements 10.
- FIG. 2 shows the top view of the bottom 7 of the swirl pot 5 FIG. 1 ,
- the bottom 7 has an inlet opening 13, passes through the fuel from the fuel tank 1 into the swirl pot 5.
- the inlet opening 13 is provided with spacers 14, which have the same axial length as the riot elements 8.
- the inlet opening 13 is surrounded by mold elements 10, which are integrally formed on the bottom 7 of the swirl pot 5. Due to the distance between the form elements 10 with each other between these axially extending column 11 are formed.
- the smaller axial extension of the mold elements 10 with respect to the riot control elements 8 also causes the formation of areas 12 between the end faces 16 of the mold elements 10 and the tank bottom 9, wherein each area 12 each two of the axially extending column 11 connects.
- the fuel in the tank 1 can thus pass through the gaps 11 and the regions 12 to the inlet opening 13. Particles contained in the fuel are kept away from the inlet opening 13 by the mold elements 10.
- the axial height of the regions 12 and thus the filter degree can be adjusted specifically.
- the mold elements 8 are arranged one behind the other in the flow direction in two rows, with a gap 11 in the radially outer row following a mold element 8 in the radially inner row and vice versa.
- FIG. 3 shows an enlarged view of the inlet opening 13 in the bottom 7 of the swirl pot 5.
- the mold elements 10 are arranged in four segments 15 around the inlet opening 13.
- the segments 15 can be connected both integrally and releasably by means of a latching and plug connection with the swirl pot 5.
- the distances 16 of the segments 15 essentially correspond to the widths of the gaps 11.
- the mold elements 10 according to FIG. 3 arranged asymmetrically.
- the gaps 11a, 11b formed between two shaped elements 10 vary in their length and width.
- the mold elements 10 have a smaller axial extent x than the riot elements 8 (y), which rest on the bottom of the tank, not shown. Due to this difference in the axial extent form 10 areas between the tank bottom 9 and the end faces 16 of the mold elements 12, through which, as well as through the column 11, fuel flows to the inlet port 13.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Filtration Of Liquid (AREA)
Abstract
Description
Gegenstand der Erfindung ist eine Fördereinheit mit einem Schwalltopf, einer darin angeordneten Kraftstoffpumpe und einem am Boden des Schwalltopfes angeordneten radial angeströmten Filter, welcher von axial vom Boden des Schwalltopfes abstehenden Formelementen gebildet ist, so dass zwischen jeweils zwei benachbarten Formelementen jeweils ein axial verlaufender Spalt ausgebildet ist, und der eine im Boden des Schwalltopfes angeordnete Einlassöffnung umgibt. Die Fördereinheit dient zum Fördern von Kraftstoff aus dem Kraftstoffbehälter zu einer Brennkraftmaschine eines Kraftfahrzeugs.The invention relates to a delivery unit with a swirl pot, a fuel pump arranged therein and arranged at the bottom of the swirl pot radially flowed filter, which is formed by axially protruding from the bottom of the swirl pot mold elements, so that in each case formed an axially extending gap between each two adjacent mold elements is, and surrounds a arranged in the bottom of the baffle inlet opening. The delivery unit serves to convey fuel from the fuel tank to an internal combustion engine of a motor vehicle.
Es ist bekannt, derartige Fördereinheiten in Kraftstoffbehältern einzusetzen. Im Kraftstoff enthaltene Verunreinigungen können in die Kraftstoffpumpe gelangen und diese beschädigen. Um die Kraftstoffpumpe vor diesen Verunreinigungen zu schützen, wird der von der Kraftstoffpumpe angesaugte Kraftstoff gefiltert. Dazu ist der Kraftstoffpumpe ein Grobfilter vorgeschaltet, um die Partikel, die zu einer Beschädigung der Kraftstoffpumpe führen könnten, vom Ansaugbereich der Kraftstoffpumpe fern zu halten.It is known to use such conveyor units in fuel tanks. Impurities contained in the fuel can enter the fuel pump and damage it. To protect the fuel pump from these contaminants, the fuel sucked in by the fuel pump is filtered. For this purpose, the fuel pump is preceded by a coarse filter to keep the particles, which could lead to damage to the fuel pump, away from the intake of the fuel pump.
Neben verschiedenen Filterbauformen, die zusätzlich als separate Teile am Schwalltopf montiert werden, ist es bekannt, am Boden des Schwalltopfes einen Filterkranz anzuordnen. Der Filterkranz wird durch am Boden des Schwalltopfes vorgesehene Anformungen gebildet (
Aus der
Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine Fördereinheit mit einem Filter zu schaffen, der sowohl ausreichend Kraftstoff für die Ansaugöffnung bereitstellt als auch einen hohen Filtergrad besitzt.The present invention is therefore an object of the invention to provide a conveyor unit with a filter that provides both sufficient fuel for the intake port and has a high degree of filtration.
Erfindungsgemäß wird die Aufgabe dadurch gelöst, dass senkrecht zu den Spalten und senkrecht zur Durchströmrichtung mindestens ein Bereich zum Durchströmen angeordnet ist, und dass der mindestens eine Bereich mindestens zwei benachbarte Spalte in axialer Erstreckung verbindet, dass die Bereiche zum Durchströmen durch mindestens ein, vorzugsweise drei, am Boden des Schwalltopfes angeordnete Aufstandselemente mit einer größeren axialen Länge als die Formelemente gebildet sind, und dass die Bereiche durch Formelemente mit unterschiedlichen axialen Längen gebildet sind.According to the invention the object is achieved in that perpendicular to the columns and perpendicular to the flow direction at least one region is arranged to flow through, and in that the at least one region connects at least two adjacent gaps in the axial extent, that the regions for flowing through at least one, preferably three, arranged at the bottom of the baffle uprising elements having a greater axial length than the mold elements are formed, and that the regions by molding elements different axial lengths are formed.
Durch die Anordnung weiterer Bereiche zum Durchströmen werden weitere Flächen für das Anströmen des Filters erschlossen. Die Vergrößerung der anströmbaren Fläche erlaubt entweder einen größeren Durchströmquerschnitt des Filters oder bei gleich bleibendem Durchströmquerschnitt eine Verkleinerung der Spalte und der dazu senkrecht angeordneten Bereiche. Die Verkleinerung der Spalte und Bereiche hat den Vorteil, dass kleinere Partikel als bisher zurückgehalten werden, was zu einer Erhöhung des Filtergrades führt.By arranging further areas for flowing through further surfaces are opened up for the flow of the filter. The enlargement of the inflowable surface allows either a larger flow cross-section of the filter or with a constant flow cross-section, a reduction of the gap and the perpendicular thereto arranged areas. The reduction of the gaps and areas has the advantage that smaller particles are retained than before, which leads to an increase in the degree of filtration.
Die Bereiche lassen sich somit mit geringem Aufwand und somit kostengünstig herstellen, wenn der Schwalltopf mit den Aufstandselementen auf dem Tankboden aufsitzt. Die Differenz der axialen Länge der Aufstandselemente und der Formelemente bestimmt den Abstand der Formelemente zum Tankboden, woraus sich die Bereiche zum Durchströmen ergeben.The areas can thus be produced with little effort and thus cost, when the swirl pot sits with the riot elements on the tank bottom. The difference between the axial length of the riot elements and the mold elements determines the distance of the mold elements to the tank bottom, resulting in the areas for flowing through.
Sofern die Bereiche durch Formelemente mit unterschiedlichen axialen Längen gebildet sind, ist es ausreichend, mindestens ein, vorzugsweise drei, Formelemente mit einer größeren axialen Länge auszubilden. Bei sehr vielen Formelementen können auch 5 % bis 50 % der Formelemente eine größere axiale Länge aufweisen. Diese Formelemente sitzen auf dem Tankboden auf, während die anderen Formelemente in einem Abstand zum Tankboden angeordnet sind, so dass sich zwischen den Stirnflächen der axial kürzeren Formelemente und dem Tankboden die Bereiche zum Durchströmen ausbilden.If the regions are formed by shaped elements with different axial lengths, it is sufficient to form at least one, preferably three, shaped elements with a greater axial length. With very many form elements, 5% to 50% of the form elements can also have a greater axial length. These mold elements sit on the tank bottom, while the other form elements are arranged at a distance from the tank bottom, so that between the end faces the axially shorter form elements and the tank bottom form the areas for flowing through.
Eine Erhöhung des Filtergrades lässt sich in einfacher Weise durch die Anordnung der Formelemente bezogen auf die Durchströmrichtung in mehreren hintereinander liegenden Reihen erzielen. Eine in Durchströmrichtung versetzte Anordnung der Formelemente in aufeinander folgenden Reihen bewirkt eine Labyrinthbildung, wodurch sich der Filtergrad ebenfalls verbessern lässt.An increase in the degree of filtering can be achieved in a simple manner by the arrangement of the mold elements with respect to the flow direction in several consecutive rows. A staggered in the flow arrangement of the form elements in successive rows causes a labyrinth formation, whereby the degree of filtering can also be improved.
Ein selektiver Filter wird durch die Anordnung von Formelemente gleicher axialer Länge in einer Reihe ereicht. Dabei ist es vorteilhaft, wenn die Formelemente der radial äußeren Reihe eine geringere axiale Länge als die Formelemente der radial inneren Reihen besitzen.A selective filter is achieved by arranging mold elements of equal axial length in a row. It is advantageous if the form elements of the radially outer row have a smaller axial length than the form elements of the radially inner rows.
In einer weiteren Ausgestaltung lässt sich der Filtergrad dadurch beeinflussen, dass die zwischen den Formelementen befindlichen Spalte in ihrer Länge und Breite unterschiedlich ausgebildet sind.In a further embodiment, the filter degree can be influenced by the fact that the gaps located between the form elements are designed differently in their length and width.
Eine einfache Gestaltung der Formelemente ermöglicht die Anordnung in Segmenten am Boden des Schwalltopfes. Da die Gestaltung der Formelemente den Filtergrad bestimmt, besteht ein weiterer Vorteil darin, dass die Fördereinheit allein durch gezielte Auswahl geeigneter Segmente hinsichtlich des Filtergrades an die entsprechenden Einsatzbedingungen angepasst werden kann. Insbesondere bei Fördereinheiten mit im Spritzgussverfahren hergestellten Schwalltöpfen erlaubt diese Ausgestaltung das Austauschen der Segmente, während der Schwalltopf unverändert beibehalten werden kann. Das Austauschen der Segmente lässt sich beispielsweise durch entsprechende Einsätze in den Spritzgießwerkzeugen realisieren.A simple design of the form elements allows the arrangement in segments at the bottom of the swirl pot. Since the design of the form elements determines the degree of filtration, there is a further advantage in that the delivery unit can be adapted to the corresponding conditions of use solely by targeted selection of suitable segments with regard to the degree of filtration. In particular, in conveyor units with injection-molded baffles this embodiment allows the replacement of the segments, while the swirl pot can be maintained unchanged. The replacement of the segments can be realized for example by appropriate use in the injection molds.
In einer Weiterbildung der Erfindung wird das Anpassen an verschiedene Einsatzbedingungen erleichtert, wenn die Segmente lösbar mit dem Schwalltopf verbunden sind, vorzugsweise mittels Rast- oder Steckverbindungen. Eine lösbare Verbindung der Segmente am Schwalltopf erlaubt zudem ein Auswechseln der Segmente, insbesondere bei Verschleiß oder Zusetzen des Filters.In one embodiment of the invention, the adaptation to different conditions of use is facilitated if the segments are detachably connected to the swirl pot, preferably by means of locking or plug connections. A detachable connection of the segments on the swirl pot also allows a replacement of the segments, especially in case of wear or clogging of the filter.
Eine Schwächung des Filtergrades wird vermieden, wenn der Abstand zweiter benachbarter Segmente nicht größer als der Abstand der Formelemente untereinander ist.A weakening of the degree of filtering is avoided if the distance of second adjacent segments is not greater than the distance of the mold elements from each other.
Entsprechend der Anordnung der Formelemente in mehreren Reihen bezogen auf die Durchströmrichtung, können auf einem Segment die Formelemente in einer oder mehreren Reihen auf jeweils einem Segment oder auf mehrere Segmenten angeordnet sein, wobei die Segmente ebenfalls in Durchströmrichtung in mehreren Reihen angeordnet sind.According to the arrangement of the form elements in several rows with respect to the flow direction, the form elements can be arranged in one or more rows on one segment or on several segments on a segment, wherein the segments are also arranged in the flow direction in a plurality of rows.
Aufgrund des verbesserten Filtergrades muss der Filter nicht mehr ausschließlich am radial äußeren Ende des Schwalltopfbodens angeordnet sein. So erlaubt die Erfindung die Anordnung der Formelemente unmittelbar im Bereich der Einlassöffnung.Due to the improved degree of filtering, the filter no longer has to be arranged exclusively at the radially outer end of the surge pot bottom. Thus, the invention allows the arrangement of the mold elements directly in the region of the inlet opening.
Neben einer kreisförmigen Ausbildung kann der Filter auch sternförmig oder als Polygon ausgebildet sein.In addition to a circular design of the filter may also be formed star-shaped or polygon.
An mehreren Ausführungsbeispielen wird die Erfindung näher beschrieben. Es zeigen:
- Fig. 1
- einen Kraftstoffbehälter mit einer Fördereinheit,
- Fig. 2
- eine perspektivische Darstellung des Schwalltopfes der Fördereinheit nach
Figur 1 , - Fig. 3
- eine zweite Ausführungsform eines Schwalltopfes in einer vergrößerten Darstellung.
- Fig. 1
- a fuel tank with a conveyor unit,
- Fig. 2
- a perspective view of the surge pot of the conveyor unit according to
FIG. 1 . - Fig. 3
- a second embodiment of a swirl pot in an enlarged view.
Der in Figur dargestellte Kraftstoffbehälter 1 enthält eine Fördereinheit 2. Die Fördereinheit 2 wird eine Öffnung 3 des Kraftstoffbehälters 1 eingesetzt, wobei ein Flansch 4 die Öffnung 3 im Kraftstoffbehälter 1 verschließt. Die Fördereinheit 2 umfasst einen Schwalltopf 5 zur Aufnahme von Kraftstoff und eine darin angeordnete Kraftstoffpumpe 6, die den Kraftstoff zu einer nicht dargestellten Brennkraftmaschine des Kraftfahrzeugs fördert. Darüber hinaus ist es denkbar, den Schwalltopf 5 auch in einer Ansaugeinheit, bei der die Kraftstoffpumpe außerhalb des Schwalltopfes angeordnet ist, zu verwenden.The fuel tank 1 shown in FIG. 1 contains a
Am Boden 7 des Schwalltopfes 5 sind Aufstandselemente 8 angeformt, mit denen der Schalltopf 5 auf dem Tankboden 9 aufsitzt. Ebenfalls am Boden 7 des Schwalltopfes 5 ausgebildete Formelemente 10 sind derart in Abständen zueinander angeordnet, dass zwei benachbarte Formelemente 10 jeweils einen Spalt 11 einschließen. Eine geringere axiale Erstreckung der Formelemente 10 gegenüber den Aufstandselementen 8 bewirkt die Bildung von Bereichen 12 zwischen den Formelementen 10 und dem Tankboden 9, so dass Kraftstoff durch die Spalte 11 und die Bereiche 12 strömen kann. Die Spalte 11 und die Bereiche 12 sind dabei so klein gewählt, dass im Kraftstoff enthaltene Partikel durch die Formelemente 10 zurückgehalten werden.At the
Im Gegensatz zu
Claims (12)
- Delivery unit (2), with a baffle (5), with a fuel pump (6) arranged therein and with a radial-onflow filter which is arranged on the bottom (7) of the baffle (5) and which is formed by shaped elements (10) projecting axially from the bottom (7) of the baffle (5), so that an axially running gap (11) is formed in each case between two adjacent shaped elements (10) in each case, and which surrounds an inlet port (13) arranged in the bottom (7) of the baffle (5), characterized in that at least one region (12) for throughflow is arranged perpendicularly to the gaps (11, 11a, 11b) and perpendicularly to the throughflow direction, in that the at least one region (12) connects at least two adjacent gaps (11, 11a, 11b) in axial extent, in that the regions (12) for throughflow are formed by at least one, preferably three, standing elements (8) arranged on the bottom (7) of the baffle (5) and having a greater axial length than the shaped elements (10), and in that the regions (12) for throughflow are formed by shaped elements (10) with different axial lengths.
- Delivery unit according to Claim 1, characterized in that the shaped elements (8) are arranged in a plurality of rows lying one behind the other in the throughflow direction.
- Delivery unit according to Claim 1, characterized in that the shaped elements (10) of equal axial length are arranged in a row.
- Delivery unit according to at least one of the preceding claims, characterized in that the shaped elements (10) of the radially outer row possess a smaller axial length than the shaped elements (8) of the radially inner rows.
- Delivery unit according to one of the preceding claims, characterized in that the axially running gaps (11, 11a, lib) between the shaped elements (10) possess different lengths and widths.
- Delivery unit according to one of the preceding claims, characterized in that the shaped elements (10) are arranged in segments (15) on the bottom (7) of the baffle (5).
- Delivery unit according to Claim 6, characterized in that the segments ( 15 ) are arranged releasably on the bottom (7) of the baffle (5).
- Delivery unit according to Claim 7, characterized in that the segments (15) are shaped in one piece on the baffle (5).
- Delivery unit according to one of Claims 6 to 8, characterized in that the distance between two adjacent segments (15) is no greater than the distance of the shaped elements (10) from one another.
- Delivery unit according to one of Claims 6 to 9, characterized in that the segments (15) are arranged in a plurality of rows in the throughflow direction.
- Delivery unit according to one of the preceding claims, characterized in that the shaped elements (10) are arranged circularly.
- Delivery unit according to one of the preceding Claims 1-11, characterized in that the shaped elements (10) are arranged in the form of a polygon.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004010358A DE102004010358B3 (en) | 2004-03-03 | 2004-03-03 | delivery unit |
PCT/EP2005/050349 WO2005085623A1 (en) | 2004-03-03 | 2005-01-27 | Delivery unit |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1738068A1 EP1738068A1 (en) | 2007-01-03 |
EP1738068B1 true EP1738068B1 (en) | 2011-08-24 |
Family
ID=34917064
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05707867A Expired - Fee Related EP1738068B1 (en) | 2004-03-03 | 2005-01-27 | Delivery unit |
Country Status (7)
Country | Link |
---|---|
US (1) | US7350509B2 (en) |
EP (1) | EP1738068B1 (en) |
JP (1) | JP4523636B2 (en) |
KR (1) | KR101251719B1 (en) |
CN (1) | CN100472059C (en) |
DE (1) | DE102004010358B3 (en) |
WO (1) | WO2005085623A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006032101A1 (en) * | 2006-07-11 | 2008-01-24 | Siemens Ag | Feed unit for conveying fuel |
DE102006032099A1 (en) * | 2006-07-11 | 2008-01-24 | Siemens Ag | Feed unit for conveying fuel |
DE102008033057A1 (en) * | 2008-07-14 | 2010-01-21 | Continental Automotive Gmbh | Fuel delivery device for a motor vehicle |
KR101295912B1 (en) * | 2010-12-30 | 2013-08-12 | 주식회사 코아비스 | Reservoir for Fuel Tank |
US8511283B2 (en) * | 2011-01-14 | 2013-08-20 | GM Global Technology Operations LLC | Ice fence for diesel fuel suction tube |
US8372278B1 (en) * | 2012-03-21 | 2013-02-12 | GM Global Technology Operations LLC | Liquid fuel strainer assembly |
CN103660920A (en) * | 2013-11-21 | 2014-03-26 | 苏州先锋物流装备科技有限公司 | Oil tank assembly |
CN104653363B (en) * | 2014-11-29 | 2017-09-26 | 华为技术有限公司 | A kind of Large Copacity base oil tank |
JP6380364B2 (en) * | 2015-12-17 | 2018-08-29 | 株式会社デンソー | Fuel pump and fuel pump module |
DE102018208306A1 (en) * | 2018-05-25 | 2019-11-28 | Bayerische Motoren Werke Aktiengesellschaft | Inlet structure for a storage pot |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5452701A (en) * | 1994-05-23 | 1995-09-26 | Walbro Corporation | Turbine fuel pump with fuel jet |
DE19521509A1 (en) | 1995-06-13 | 1996-12-19 | Bosch Gmbh Robert | Device for delivering fuel from a storage tank to an internal combustion engine |
FR2779184B1 (en) * | 1998-05-26 | 2001-01-26 | Marwal Systems | FUEL PUMP ASSEMBLY IN A MOTOR VEHICLE TANK |
JP3802682B2 (en) | 1998-06-17 | 2006-07-26 | 株式会社ニフコ | Fuel filter |
DE19834653C1 (en) * | 1998-07-31 | 1999-12-16 | Bosch Gmbh Robert | Modular fuel supply system for IC engines in motor vehicles |
DE19915255B4 (en) | 1999-04-03 | 2004-04-08 | Robert Bosch Gmbh | Conveying device for fuel |
US6155793A (en) * | 1999-06-08 | 2000-12-05 | Walbro Corporation | Recessed fuel pump module |
US6555000B2 (en) * | 1999-12-03 | 2003-04-29 | Parker-Hannifin Corporation | Fuel filter with bypass valve |
US6260543B1 (en) * | 2000-05-19 | 2001-07-17 | Visteon Global Technologies, Inc. | Fuel delivery module with integrated filter |
US6739844B1 (en) * | 2000-06-09 | 2004-05-25 | Visteon Global Technologies, Inc. | Fuel pump with contamination reducing flow passages |
WO2002014677A1 (en) * | 2000-08-14 | 2002-02-21 | Stanadyne Automotive Corp. | Fuel tank mounted, motorized high pressure gasoline pump |
US6613227B2 (en) * | 2002-01-11 | 2003-09-02 | Kuss Corporation | Electrically conductive in-tank fuel filter |
-
2004
- 2004-03-03 DE DE102004010358A patent/DE102004010358B3/en not_active Expired - Fee Related
-
2005
- 2005-01-27 KR KR1020067020016A patent/KR101251719B1/en active IP Right Grant
- 2005-01-27 CN CNB2005800065518A patent/CN100472059C/en not_active Expired - Fee Related
- 2005-01-27 US US10/591,189 patent/US7350509B2/en active Active
- 2005-01-27 WO PCT/EP2005/050349 patent/WO2005085623A1/en active Application Filing
- 2005-01-27 EP EP05707867A patent/EP1738068B1/en not_active Expired - Fee Related
- 2005-01-27 JP JP2007501258A patent/JP4523636B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1738068A1 (en) | 2007-01-03 |
JP2007525617A (en) | 2007-09-06 |
CN100472059C (en) | 2009-03-25 |
JP4523636B2 (en) | 2010-08-11 |
DE102004010358B3 (en) | 2005-12-22 |
CN1926322A (en) | 2007-03-07 |
US7350509B2 (en) | 2008-04-01 |
KR20060135840A (en) | 2006-12-29 |
WO2005085623A1 (en) | 2005-09-15 |
KR101251719B1 (en) | 2013-04-05 |
US20070215537A1 (en) | 2007-09-20 |
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