EP1625299A1 - Supply unit for fixing in a fuel tank - Google Patents

Supply unit for fixing in a fuel tank

Info

Publication number
EP1625299A1
EP1625299A1 EP04730549A EP04730549A EP1625299A1 EP 1625299 A1 EP1625299 A1 EP 1625299A1 EP 04730549 A EP04730549 A EP 04730549A EP 04730549 A EP04730549 A EP 04730549A EP 1625299 A1 EP1625299 A1 EP 1625299A1
Authority
EP
European Patent Office
Prior art keywords
filter
unit according
demand unit
filter element
support ring
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.)
Withdrawn
Application number
EP04730549A
Other languages
German (de)
French (fr)
Inventor
Benoit Bahl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1625299A1 publication Critical patent/EP1625299A1/en
Withdrawn legal-status Critical Current

Links

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
    • 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
    • F02M37/34—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 by the filter structure, e.g. honeycomb, mesh or fibrous
    • 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 for a motor vehicle provided for fastening in a fuel tank with a delivery pump arranged in a housing and intended for drawing in fuel from a bottom area of a baffle and with a filter arranged upstream of the delivery pump as seen in the direction of flow
  • Such conveying units are usually designed with an electric motor as a structural unit and inserted through an opening in the fuel tank.
  • the filter has a bag-shaped filter fabric and is mounted on a pipe piece and is arranged close to the bottom of the baffle.
  • the pipe piece is one-piece with a side part of the conveying unit
  • the filter element has clips for locking with the pipe piece and lies to the side of the conveying unit
  • a disadvantage of the known delivery unit is that it is complicated to assemble and has a high space requirement.
  • the high space requirement due to the filter element protruding to the side means that the bottom area of the swirl pot must be designed to be very large, so that the delivery unit with an almost empty fuel tank and an inclined one Can not reliably suck Kiaftfahizeug
  • the invention is based on the problem of designing a conveying unit of the type mentioned at the outset in such a way that it can be produced and assembled as inexpensively as possible and requires a particularly small amount of space in the bottom area of the plastic container
  • This problem is solved according to the invention in that the filter is arranged within the housing of the feed pump
  • the intake unit according to the invention requires a particularly small amount of space in its suction area, so that the swirl pot in the fuel tank can have particularly small dimensions.
  • a filter element protruding from the delivery unit is therefore not necessary required to assemble the filter
  • the requirement according to the invention can therefore be manufactured and assembled particularly inexpensively
  • the filter further contributes to a further reduction in the space requirement if the filter is designed to be cylindrical in shape and with its two end faces rests on a side part each with a passage provided with fuel flow.
  • Another advantage of this design is that that the door unit has a sandwich-like structure and is particularly easy to assemble
  • the filter is held reliably in its position if it has a support ring for support on the side parts. Furthermore, the support ring serves as a spacer for the side parts, so that they can be easily clamped together during assembly contributes to further simplifying the assembly of the conveyor unit according to the invention
  • a large surface of the effective area of the filter element can be easily generated if the filter element has a folded filter fabric
  • the filter element is dei flow of the fuel completely flows when the ends of the channels of the side parts facing the filter element are arranged offset from one another.
  • the filter element can filter the fuel in several stages if the filter element has a plurality of filter fabrics layered one on top of the other. This reliably prevents the filter fabric from clogging quickly.
  • the filter fabric is reliably held in its intended position with respect to the flow of the fuel if the filter element has support elements for holding the filter fabric.
  • degassing lines of the feed pump or branches for supplying a suction jet pump with fuel are frequently discharged downwards from the feed unit.
  • such lines can simply be guided through the filter if the filter has ring elements fastened in the filter element for the passage of lines. If the support ring is made of plastic in a molded casting tube, it contributes to the further reduction of the manufacturing costs of the inventive conveyor unit.
  • the support ring is designed for the lateral sealing of the filter element.
  • the feed pump and the filter with the two side parts can simply be clamped together in a side part made of sheet metal, for example.
  • the delivery unit according to the invention requires a particularly small number of components to be assembled if the support ring is made in one piece with one of the side parts.
  • the invention allows numerous embodiments. Two further thereof are shown in the drawing for further clarification of their basic principle and are described below. This shows a floor area in FIG. 1 a fuel tank with a forcing unit according to the invention,
  • FIG. 2 shows an enlarged sectional view through the lower region of the claim unit according to the invention from FIG. 1,
  • FIG. 3 shows a sectional view through the conveyor unit from FIG. 2 along the line III-III
  • FIG. 4 shows a lower region of a further embodiment of the conveyor unit according to the invention in partial section
  • Figure 1 shows a floor area of a fuel tank 1 of a motor vehicle with a baffle 2 in the
  • Swirl pot 2 is attached to a delivery unit 3 with a fordei pump 5, which is anoid in a housing 4
  • a supply line leading to an internal combustion engine (not shown) can be connected to the connecting piece 9.
  • the surge pot 2 has a bottom valve 10 designed as a check valve. Fuel can flow into the surge pot 2 through the bottom valve
  • the filter 6, as shown in FIG. 2, is clamped between two side parts 11, 12 of the delivery unit 3.
  • the filter 6 In its radially outer area, the filter 6 has a support ring 13 made of plastic by injection molding.
  • the support ring 13 is sealingly glued to a filter element 14 having a folded filter fabric 15.
  • the housing 4 of the delivery unit 3 is tubular and has at its end a flanged edge 16 which engages behind the outer side part 12 of the delivery unit 3. As a result, the side parts 11, 12 are clamped together with the filter 6 and the delivery pump 5.
  • the filter 6 has an Rmg element 17 glued into the filter fabric 15 for the passage of a line 18.
  • the line 18 can, for example, be a degassing line of the feed pump 5 or a? .Bzwe ⁇ g leading into the fuel tank 1 shown in Figure 1 ,
  • the conveyor unit 3 from FIG. 2 is shown in a sectional view along the line III-III in FIG. 3. It can be seen here that the support ring 13 is made in one piece with a second ring element 19 for the passage of a line (not shown) through the filter 6.
  • FIG. 4 shows a further embodiment of the filter unit 3 according to the invention in a section through a filter 20.
  • the filter 20 here has a filter element 21 with a plurality of layered, flat-shaped filter webs 22.
  • a side part 23 abutting the tilter 20 is in one piece with a support ring 24 of the filter element 21 manufactured.
  • the filter fabric 22 has a plurality of support elements 26 resting on the side parts 23, 25.

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)

Abstract

The invention relates to a supply unit (3) for fuel, in which a filter (6) and a supply pump (5) are arranged in a common housing (4). The filter element (14) has a support ring (13), tensioned between lateral pieces (11, 12) of the supply unit (3). The support ring (13) retains a folded filter membrane (15) within a channel (7, 8) of the supply unit (3). Said supply unit (3) requires little space and is easily assembled.

Description

Beschreibungdescription
Zur Befestigung in einem Kraftstoffbehälter vorgesehene lor- dereinheitLorent unit provided for fastening in a fuel tank
Die Erfindung betrifft eine zur Befestigung in einem Kraftstoffbehälter vorgesehene Fordeieinheit f r ein Kraftfahrzeug mit einer in einem Gehäuse angeordneten, zum Ansaugen von Kraftstoff aus einem Bodenbereich eines Schwalltopfes vorge- sehenen Forderpumpe und mit einem in Stromungsrichtung gesehen vor der Forderpumpe angeordneten FilterThe invention relates to a delivery unit for a motor vehicle provided for fastening in a fuel tank with a delivery pump arranged in a housing and intended for drawing in fuel from a bottom area of a baffle and with a filter arranged upstream of the delivery pump as seen in the direction of flow
Solche Fordereinheiten werden meist mit einem Elektromotor als bauliche Einheit gestaltet und durch eine Öffnung des Kraftstoffbehälters eingesetzt Der Filter hat dabei ein tu- tenformig gestaltetes und an einem Rohrstuck montiertes Fil- tergewebe und wird nahe am Boden des Schwalltopfes angeordnet Das Rohrstuck ist einteilig mit einem Seitenteil der Fordereinheit gefertigt Das Filterelement hat Klipse zur Verrastung mit dem Rohrstuck und lagt seitlich von dei Fordereinheit wegSuch conveying units are usually designed with an electric motor as a structural unit and inserted through an opening in the fuel tank. The filter has a bag-shaped filter fabric and is mounted on a pipe piece and is arranged close to the bottom of the baffle. The pipe piece is one-piece with a side part of the conveying unit The filter element has clips for locking with the pipe piece and lies to the side of the conveying unit
Nachteilig bei der bekannten Fordereinheit ist, dass sie aufwendig zu montieren ist und einen hohen Platzbedaif aufweist Der hohe Platzbedarf durch das seitlich abstehende Filterelement fuhrt dazu, dass der Bodenboreich des Schwalltopfes sehr großflächig gestaltet sein muss, so dass die rordereinheit bei nahezu leerem Kraftstoffbehälter und schragstehendem Kiaftfahizeug nicht zuverlässig ansaugen kannA disadvantage of the known delivery unit is that it is complicated to assemble and has a high space requirement.The high space requirement due to the filter element protruding to the side means that the bottom area of the swirl pot must be designed to be very large, so that the delivery unit with an almost empty fuel tank and an inclined one Can not reliably suck Kiaftfahizeug
Der Erfindung liegt das Problem zugrunde, eine Fordereinheit der eingangs genannten Ait so zu gestalten, dass sie möglichst kostengünstig herzustellen und zu montieren ist und einen besonders geringen Platzbedarf im Bodenbereich des Kiaftstoffbehalteis benotigt Dieses Problem wird erfmdungsgemaß dadurch gelost, dass der Filter innerhalb des Gehäuses der Forderpumpe angeordnet istThe invention is based on the problem of designing a conveying unit of the type mentioned at the outset in such a way that it can be produced and assembled as inexpensively as possible and requires a particularly small amount of space in the bottom area of the plastic container This problem is solved according to the invention in that the filter is arranged within the housing of the feed pump
Durch diese Gestaltung hat die erfindungsgemaße tordereinheit in ihrem Ansaugbereich einen besonders geringen Platzbedarf, so dass der Schwalltopf im Kraftstoffbehälter besonders geringe Abmessungen aufweisen kann Ein von der Fordereinheit abstehendes Filterelement ist daher nicht erforderlich Duich die Anordnung des Filters innerhalb der Fordereinheit sind keine weiteren Rohrstucke oder Klipse zur Montage des Filters erforderlich Die erfindungsgemaße Fordercinheit lasst sich daher besonders kostengünstig herstellen und montierenAs a result of this design, the intake unit according to the invention requires a particularly small amount of space in its suction area, so that the swirl pot in the fuel tank can have particularly small dimensions. A filter element protruding from the delivery unit is therefore not necessary required to assemble the filter The requirement according to the invention can therefore be manufactured and assembled particularly inexpensively
Zur weiteren Verringerung des Platzbedarfs tragt es gemäß ei- ner vorteilha ten Weiterbildung der Erfindung bei, wenn der Filter zylindeiformig gestaltet ist und mit seinen beiαen Stirnseiten an jeweils einem einen zui Durchstromung mit Kraftstoff ausgebildeten Kanal aufweisenden Seitenteil anliegt Ein weiterer Vorteil dieser Gestaltung besteht darin, dass die tordereinheit hierdurch einen sandwichartigen Aufbau hat und dahei besonders einfach zu montieren istAccording to an advantageous further development of the invention, it further contributes to a further reduction in the space requirement if the filter is designed to be cylindrical in shape and with its two end faces rests on a side part each with a passage provided with fuel flow. Another advantage of this design is that that the door unit has a sandwich-like structure and is particularly easy to assemble
Der Filter wird gemäß einer vorteilhaften Weite bi 1 d ng dei Erfindung zuverlässig in seiner Position gehalten, wenn er einen Stutzring zur Λbstutzung an den Seitenteilen hat Weiterhin dient der Stutzring als Abstandhalter für die Seitenteile, so dass sich diese bei der Montage einfach zusammenspannen lassen Dies tragt zur weiteren Vereinfachung der Montage der erfindungsgemaßen Fordereinheit beiAccording to an advantageous width bi 1 d ng dei invention, the filter is held reliably in its position if it has a support ring for support on the side parts. Furthermore, the support ring serves as a spacer for the side parts, so that they can be easily clamped together during assembly contributes to further simplifying the assembly of the conveyor unit according to the invention
Eine große Oberflache des wirksamen Bereichs des Filterele ments lasst sich gemäß einer anderen vorteilhaften Weiterbildung der Erfindung einfach erzeugen, wenn das Filterelement ein gefaltetes Filtergewebe hatAccording to another advantageous development of the invention, a large surface of the effective area of the filter element can be easily generated if the filter element has a folded filter fabric
Das Filterelement wird gemäß einei anderen vorteilhaften Weiterbildung der Erfindung von dei Strömung des Kraftstoffs vollständig durchströmt, wenn die dem Filterelement zugewandten Enden der Kanäle der Seitenteile gegeneinander versetzt angeordnet sind.According to another advantageous development of the invention, the filter element is dei flow of the fuel completely flows when the ends of the channels of the side parts facing the filter element are arranged offset from one another.
Das Filterelement kann gemäß einer anderen vorteilhaften Weiterbildung der Erfindung den Kraftstoff in mehreren Stufen filtern, wenn das Filterelement mehrere ubereinandergeschich- tete Filtergewebe aufweist. Hierdurch wird ein schnelles Zusetzen des Filtergewebes zuverlässig verhindert.According to another advantageous development of the invention, the filter element can filter the fuel in several stages if the filter element has a plurality of filter fabrics layered one on top of the other. This reliably prevents the filter fabric from clogging quickly.
Das Filtergewebe wird gemäß einer andeien vorteilhaften Weiterbildung der Erfindung zuverlässig in seiner vorgesehenen Lage gegenüber der Strömung des Kraftstoffs gehalten, wenn das Filterelement Stutzelemente zur Halterung des riltergewe- bes aufweist.According to another advantageous development of the invention, the filter fabric is reliably held in its intended position with respect to the flow of the fuel if the filter element has support elements for holding the filter fabric.
Häufig werden beispielsweise Entgasungsleitungen der Forderpumpe oder Abzweige zur Versorgung einer Saugstrahlpumpe mit Kraftstoff nach unten hin aus der Fordereinheit abgeführt. Solche Leitungen lassen sich gemäß einer anderen vorteilhaften Weiterbildung der Erfindung einfach duich den Filter fuhren, wenn dei Filter in dem Filterelement befestigte Ringelemente zur Durchfuhrung von Leitungen hat. Zur weiteten Verringerung der Fertigungskosten der erfin- dungsgemaßen Fordereinheit tragt es bei, wenn der Stutzring aus Kunststoff im Spπtzgussvei ahren gefertigt ist.For example, degassing lines of the feed pump or branches for supplying a suction jet pump with fuel are frequently discharged downwards from the feed unit. According to another advantageous development of the invention, such lines can simply be guided through the filter if the filter has ring elements fastened in the filter element for the passage of lines. If the support ring is made of plastic in a molded casting tube, it contributes to the further reduction of the manufacturing costs of the inventive conveyor unit.
Zur weiteren Vereinfachung der Montage der er mdungsgemaßen Fordereinheit tragt es bei, wenn der Stutzring zur seitlichen Abdichtung des Filterelements ausgebildet ist. Hierdurch lassen sich die Forderpumpe und der Filter mit den beiden Seitenteilen einfach in einem beispielsweise aus Blech gefertigten Seitenteil zusammenspannen. To further simplify the assembly of the conveying unit according to the invention, it helps if the support ring is designed for the lateral sealing of the filter element. As a result, the feed pump and the filter with the two side parts can simply be clamped together in a side part made of sheet metal, for example.
Die erfindungsgemaße Fordereinheit benotigt besonders wenige zu montierende Bauteile, wenn der Stutzring einteilig mit einem der Seitenteile gefertigt ist Die Erfindung lasst zahlreiche Ausfuhrungs formen zu Zur weiteren Verdeutlichung ihres Grundprinzips sind zwei davon in der Zeichnung dargestellt und werden nachfolgend beschrieben Diese zeigt in Fig 1 einen Bodenbereich eines Kraftstoffbehälters mit einer erfindungsgemaßen Fordeieinheit,The delivery unit according to the invention requires a particularly small number of components to be assembled if the support ring is made in one piece with one of the side parts. The invention allows numerous embodiments. Two further thereof are shown in the drawing for further clarification of their basic principle and are described below. This shows a floor area in FIG. 1 a fuel tank with a forcing unit according to the invention,
Fig 2 eine vergrößerte Schnittdarstellung durch den unteren Bereich der erfindungsgemaßen For- dereinheit aus Figur 1,2 shows an enlarged sectional view through the lower region of the claim unit according to the invention from FIG. 1,
Fig 3 eine Schnittdarstellung durch die Fordereinheit aus Figur 2 entlang der Linie III - III, Fig 4 einen unteren Bereich einer weiteren Ausfuh- lungsform der erfindungsgemaßen Fordereinheit im Teilschnitt3 shows a sectional view through the conveyor unit from FIG. 2 along the line III-III, FIG. 4 shows a lower region of a further embodiment of the conveyor unit according to the invention in partial section
Figur 1 zeigt einen Bodenbereich eine Kraft toffbehalter 1 eines Kraftfahrzeuges mit einem Schwalltopf 2 In demFigure 1 shows a floor area of a fuel tank 1 of a motor vehicle with a baffle 2 in the
Schwalltopf 2 ist eine Fordereinheit 3 mit einer in einem Gehäuse 4 angeoidneten Fordeipumpe 5 befestigt Die Foiderpumpe 5 saugt über einen durch einen Filter 6 fuhrenden Kanal 7, 8 Kraftstoff von dem Bodenbereich des Schwalltopfes 2 an und fordert diesen zu einem an seiner Oberseite angeoidneten Anschlussstutzen 9 An dem Anschlussstutzen 9 lasst sich eine zu einer nicht dargestellten Brennkraftmaschine fuhrende Vor- laufleitung anschließen In seinem unteren Bereich hat der Schwalltopf 2 ein als R ckschlagventil ausgebildetes Boden- ventil 10 Durch das Bodenventil kann Kraftstoff in den Schwalltopf 2 einströmen Der Filter 6 ist, wie Figur 2 zeigt, zwischen zwei Seitenteilen 11, 12 der Fordereinheit 3 eingespannt. In seinem radial äußeren Bereich weist der Filter 6 einen aus Kunststoff im Spritzgußverfahren gefertigten Stutzring 13 auf. Der Stutz- ring 13 ist dichtend m t einem ein gefaltetes Filtergewebe 15 aufweisenden Filterelement 14 verklebt. Das Gehäuse 4 der Fordereinheit 3 ist rohrformig gestaltet und hat an seinem Ende einen umgebordelten, das äußere Seitenteil 12 dei Fordereinheit 3 hintergreifenden Rand 16. Hierdurch sind die Seitenteile 11, 12 mit dem Filter 6 und der Forderpumpe 5 zu- sammengespannt . Dei Filter 6 hat ein in dem Filtergewebe 15 eingeklebtes Rmg-element 17 zur Durchfuhrung einer Leitung 18. Bei der Leitung 18 kann es sich beispielsweise um eine Entgasungsleitung der Forderpumpe 5 oder um einen in den in Figur 1 dargestellten Kraftstoffbehälter 1 fuhrenden ?.bzweιg handeln .Swirl pot 2 is attached to a delivery unit 3 with a fordei pump 5, which is anoid in a housing 4 A supply line leading to an internal combustion engine (not shown) can be connected to the connecting piece 9. In its lower region, the surge pot 2 has a bottom valve 10 designed as a check valve. Fuel can flow into the surge pot 2 through the bottom valve The filter 6, as shown in FIG. 2, is clamped between two side parts 11, 12 of the delivery unit 3. In its radially outer area, the filter 6 has a support ring 13 made of plastic by injection molding. The support ring 13 is sealingly glued to a filter element 14 having a folded filter fabric 15. The housing 4 of the delivery unit 3 is tubular and has at its end a flanged edge 16 which engages behind the outer side part 12 of the delivery unit 3. As a result, the side parts 11, 12 are clamped together with the filter 6 and the delivery pump 5. The filter 6 has an Rmg element 17 glued into the filter fabric 15 for the passage of a line 18. The line 18 can, for example, be a degassing line of the feed pump 5 or a? .Bzweιg leading into the fuel tank 1 shown in Figure 1 ,
Die Fordereinheit 3 aus Figur 2 ist in einei Schnittdaistel- lung entlang der Linie III - III in Figur 3 dargestellt. Hierbei ist zu erkennen, dass der Stutzring 13 einteilig mit einem zweiten Ringelement 19 zur Durchfuhrung einer nicht dargestellten Leitung durch den tilter 6 gefertigt ist.The conveyor unit 3 from FIG. 2 is shown in a sectional view along the line III-III in FIG. 3. It can be seen here that the support ring 13 is made in one piece with a second ring element 19 for the passage of a line (not shown) through the filter 6.
Figur 4 zeigt eine weitere Ausfuhrungsform der erfmdungsge- maßen Foideremheit 3 in einem Tcilschnitt durch einen Filter 20. Der Filter 20 hat hier ein Filterelement 21 mit mehreren ubeieinandergeschichteten, eben gestalteten Filteigeweben 22. Ein an dem Tilter 20 anliegendes Seitenteil 23 ist einteilig mit einem Stutzring 24 des Filterelements 21 gefertigt. Das Filtergewebe 22 weist mehrere, an den Seitenteilen 23, 25 anliegende Stutzelemente 26 auf. FIG. 4 shows a further embodiment of the filter unit 3 according to the invention in a section through a filter 20. The filter 20 here has a filter element 21 with a plurality of layered, flat-shaped filter webs 22. A side part 23 abutting the tilter 20 is in one piece with a support ring 24 of the filter element 21 manufactured. The filter fabric 22 has a plurality of support elements 26 resting on the side parts 23, 25.

Claims

Patentansprüche claims
1. Zur Befestigung in einem Kraftstoffbehälter vorgesehene Fordereinheit für ein Kraftfahrzeug mit einer in einem Gehäuse angeordneten, zum Ansaugen von Kraftstoff aus einem Bodenbereich eines Schwalltopfes vorgesehenen Forderpumpe und mit einem in Strömungsrichtung gesehen vor der Forderpumpe angeordneten, ein Filterelement aufweisenden Filter, dadurch gekennzeichnet, dass der Filter (6, 20) innerhalb des Gehäuses (4) der Forderpumpe (5) angeordnet ist.1. For attachment in a fuel tank provided for a motor vehicle with a arranged in a housing, for sucking fuel from a bottom area of a swirl pot provided with a pump and viewed in the flow direction arranged in front of the pump, having a filter element, characterized in that the filter (6, 20) is arranged inside the housing (4) of the feed pump (5).
2. Fordereinheit nach Anspruch 1, dadurch gekennzeichnet, dass der Filter (6, 20) zylinderformig gestaltet ist und mit seinen beiden Stirnseiten an jeweils einem einen zur Durchstromung mit Kraftstoff ausgebildeten Kanal (7, 8) aufweisenden Seitenteil (11, 12, 23, 25) anliegt . 2. Demand unit according to claim 1, characterized in that the filter (6, 20) is cylindrical in shape and with its two end faces on a respective side part (11, 12, 23, 1) designed for fuel flow (7, 8). 25) is present.
3. Fordereinheit nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Filter (6, 20) einen Stutzring (13, 24) zur Abstutzung an den Seitenteilen (11, 12, 23, 25) hat . 3. Demand unit according to claim 1 or 2, characterized in that the filter (6, 20) has a support ring (13, 24) for support on the side parts (11, 12, 23, 25).
4. Fordereinheit nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Filterelement (14) ein gefaltetes Filtergewebe (15) hat.4. Demand unit according to at least one of the preceding claims, characterized in that the filter element (14) has a folded filter fabric (15).
5. Fordereinheit nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die dem Filterelement (14, 21) zugewandten Enden der Kanäle (7, 8) der Seitenteile (11, 12, 23, 25) gegeneinander versetzt angeordnet sind. 5. Demand unit according to at least one of the preceding claims, characterized in that the filter element (14, 21) facing ends of the channels (7, 8) of the side parts (11, 12, 23, 25) are arranged offset from one another.
6. Fordereinheit nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das tilterele- ment (21) mehrere ubereinandergeschichtete Filtergewebe (22) aufweist.6. Demand unit according to at least one of the preceding claims, characterized in that the tilterele- element (21) has a plurality of filter fabrics (22) layered one on top of the other.
7. Fordereinheit nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Filterelement (21) Stutzelemente (26) zur Halterung des Filter- gewebes (22) aufweist.7. Demand unit according to at least one of the preceding claims, characterized in that the filter element (21) has support elements (26) for holding the filter fabric (22).
8. Fordereinheit nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Filter (6) in dem Filterelement (14) befestigte Ringelemente (17, 19) zur Durchfuhrung von Leitungen (18) hat.8. Demand unit according to at least one of the preceding claims, characterized in that the filter (6) in the filter element (14) has fixed ring elements (17, 19) for the passage of lines (18).
9. Tordereinheit nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Stutzring9. Torder unit according to at least one of the preceding claims, characterized in that the support ring
(13, 24) aus Kunststoff im Spritzgußverfahren gefertigt (13, 24) made of plastic by injection molding
10. Fordereinheit nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Stutzring10. Demand unit according to at least one of the preceding claims, characterized in that the support ring
(13, 24) zur seitlichen Abdichtung des Filterelements (14, 21) ausgebildet ist.(13, 24) for lateral sealing of the filter element (14, 21) is formed.
11. Fordereinheit nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Stutzring11. Demand unit according to at least one of the preceding claims, characterized in that the support ring
(24) einteilig mit einem der Seitenteile (23) gefertigt (24) made in one piece with one of the side parts (23)
EP04730549A 2003-05-20 2004-04-30 Supply unit for fixing in a fuel tank Withdrawn EP1625299A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10322621A DE10322621B4 (en) 2003-05-20 2003-05-20 For attachment in a fuel tank provided delivery unit
PCT/EP2004/050664 WO2004104402A1 (en) 2003-05-20 2004-04-30 Supply unit for fixing in a fuel tank

Publications (1)

Publication Number Publication Date
EP1625299A1 true EP1625299A1 (en) 2006-02-15

Family

ID=33461822

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04730549A Withdrawn EP1625299A1 (en) 2003-05-20 2004-04-30 Supply unit for fixing in a fuel tank

Country Status (5)

Country Link
US (1) US20070007187A1 (en)
EP (1) EP1625299A1 (en)
JP (1) JP2006526108A (en)
DE (1) DE10322621B4 (en)
WO (1) WO2004104402A1 (en)

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Also Published As

Publication number Publication date
US20070007187A1 (en) 2007-01-11
WO2004104402A1 (en) 2004-12-02
JP2006526108A (en) 2006-11-16
DE10322621B4 (en) 2006-05-04
DE10322621A1 (en) 2004-12-23

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