EP1423613A1 - Supply pump - Google Patents

Supply pump

Info

Publication number
EP1423613A1
EP1423613A1 EP02772031A EP02772031A EP1423613A1 EP 1423613 A1 EP1423613 A1 EP 1423613A1 EP 02772031 A EP02772031 A EP 02772031A EP 02772031 A EP02772031 A EP 02772031A EP 1423613 A1 EP1423613 A1 EP 1423613A1
Authority
EP
European Patent Office
Prior art keywords
sections
feed pump
radii
partially annular
pump
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.)
Granted
Application number
EP02772031A
Other languages
German (de)
French (fr)
Other versions
EP1423613B1 (en
Inventor
Sabine Burhenne
Johannes Deichmann
Bernd Jäger
Karsten Meiser
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.)
Continental Automotive GmbH
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 EP1423613A1 publication Critical patent/EP1423613A1/en
Application granted granted Critical
Publication of EP1423613B1 publication Critical patent/EP1423613B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D5/00—Pumps with circumferential or transverse flow
    • F04D5/002—Regenerative pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D5/00—Pumps with circumferential or transverse flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D5/00—Pumps with circumferential or transverse flow
    • F04D5/002—Regenerative pumps
    • F04D5/007—Details of the inlet or outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/30—Arrangement of components
    • F05B2250/32—Arrangement of components according to their shape
    • F05B2250/322—Arrangement of components according to their shape tangential
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/50—Inlet or outlet
    • F05B2250/503—Inlet or outlet of regenerative pumps

Definitions

  • the invention relates to a feed pump with a driven impeller rotating in a pump housing, with at least one ring of vane chambers, with a partially annular channel arranged opposite the ring of the vane chamber in the wall of the pump housing and extending from an inlet channel to an outlet channel, the cross section of the partially annular channel has several sections.
  • Such feed pumps are often used as fuel pumps and are known in practice.
  • the delivery chamber composed of the partially annular channel and the blade chambers is to be adapted to the circulation flow generated therein.
  • at least one of the sections has a surface, so that the circulation flow has an alternating distance from the wall of the partially annular channel.
  • a disadvantage of the known feed pump is that vortices occur at the transitions of the sections and thus in the areas in which the circulation flow is at a particularly large distance from the wall of the partially annular channel, which lead to a sharp reduction in the efficiency of the feed pump.
  • the cross section of the delivery chamber in a delivery pump known from EP 0 646 727 B1 is designed as part of an ellipse, the depth of the partially annular channel being less than half is the minor axis of the ellipse.
  • This avoids flat sections in the region of the delivery chamber.
  • a disadvantage of this feed pump is that turbulence occurs in the inlet area and in the outlet area of the circulation flow in the partially annular channel, since the delivery chamber forms tapering pockets, particularly in areas adjacent to the vane chamber, and the circulation flow is therefore at a variable distance from the wall of the partially annular channel.
  • the elliptical design of the cross section of the partially annular channel is very difficult to manufacture.
  • the invention is based on the problem of designing a feed pump of the type mentioned at the outset in such a way that eddies in the partially annular channel are avoided and that the feed pump has a particularly high degree of efficiency.
  • each of the sections is formed by a radius.
  • the delivery chamber can be easily adapted to the circulation flow of the medium to be delivered and its viscosity. Changing distances between the circulation flow can easily be avoided. Turbulence within the feed pump is therefore reliably avoided.
  • the feed pump according to the invention therefore has a particularly high efficiency. Another advantage of this design is that the optimum efficiency can be placed on the operating point of the feed pump by a suitable choice of the radii and the sections.
  • the feed pump according to the invention can be manufactured particularly inexpensively by a total of three to five sections.
  • FIG. 1 shows a sectional view through a feed pump according to the invention
  • FIG. 2 shows a greatly enlarged partial section in the region of a delivery chamber of the delivery pump from FIG. 1, 3, 4 further embodiments of the feed chamber of the feed pump in partial section.
  • FIG. 1 shows a feed pump 2, which is driven by an electric motor 1 and is designed as a side channel pump.
  • a feed pump 2 can be used, for example, to deliver fuel in a motor vehicle today.
  • the feed pump 2 has an impeller 6 driven between two housing parts 3, 4 of a pump housing 5.
  • the impeller 6 is fastened on a shaft 7 of the electric motor 1.
  • the housing parts 3, 4 of the pump housing 5 are kept at a distance by means of an annular spacer 8.
  • the impeller 6 has a ring of blade chambers 9 in its end faces. In the regions of the housing parts 3, 4 opposite the rings of the blade chambers 9 there are partially annular channels
  • the vane chambers 9 and the part-ring-shaped channels 10 form delivery chambers 13 extending from an inlet channel 11 to an outlet channel 12 of the feed pump 2.
  • a medium becomes through the inlet channel
  • FIG. 2 shows, in a greatly enlarged illustration, a cross section of one of the delivery chambers 13 from FIG. 1.
  • the blade chambers 9 in the impeller 6 have an approximately semicircular or semi-elliptical cross section.
  • the cross section of the partially annular channel 10 has three sections 14-16 each having a radius R 2 ', R 2 ''.
  • the origin of the two outer radii R 2 ' is located on the end face of the housing part 3, while the origin of the central radius R 2 '' on the vertical the end of the housing part 3 is the axis of symmetry of the partially annular channel 10.
  • the sections 14-16 each have a common tangent at their adjoining regions.
  • the two outer radii R 2 ' have approximately the radius 1.4 length units, while the mean radius R 2 ''is 1.6.
  • FIG. 3 shows a further embodiment of the delivery chamber 13 from FIG. 1 in cross section, which differs from that from FIG. 2 in that the radii R 3 'of the two outer sections 14, 16 are each 0.3 length units, while the central section 15 has a radius R 3 '' of 8 length units.
  • FIG. 4 also shows a further embodiment of the delivery chamber 13 from FIG. 1 in cross section, in which the radii R 'of the outer sections 14, 16 are each 10 length units and the middle section 15 has a radius R 4 ''of 1.4 length units.

Abstract

The invention relates to a supply pump embodied as a side channel pump, whereby several sections (14 - 16) forming the cross-section of a supply chamber (13) each comprise radii. The origins of the external radii are arranged on the front face of a pump housing facing the one rotor. The sections (14 - 16) comprise common tangents in the adjacent regions thereof. A particularly high efficiency for the supply pump can thus be guaranteed.

Description

Beschreibungdescription
Förderpumpefeed pump
Die Erfindung betrifft eine Förderpumpe mit einem angetriebenen, sich in einem Pumpengehäuse drehenden Laufrad, mit zumindest einem Kranz Schaufelkammern, mit einem dem Kranz der Schaufelkammer in der Wandung des Pumpengehäuses gegenüberliegend angeordneten, sich von einem Einlasskanal zu einem Auslasskanal erstreckenden teilringförmigen Kanal, wobei der Querschnitt des teilringförmigen Kanals mehrere Abschnitte aufweist.The invention relates to a feed pump with a driven impeller rotating in a pump housing, with at least one ring of vane chambers, with a partially annular channel arranged opposite the ring of the vane chamber in the wall of the pump housing and extending from an inlet channel to an outlet channel, the cross section of the partially annular channel has several sections.
Solche Förderpumpen werden häufig als Kraftstoffpumpen eingesetzt und sind aus der Praxis bekannt. Durch die Gestaltung des Querschnitts des teilringförmigen Kanals mit mehreren Abschnitten soll die aus dem teilringförmigen Kanal und den Schaufelkammern zusammengesetzte Förderkammer auf die darin erzeugte Zirkulationsströmung angepasst werden. Bei der aus der Praxis bekannten Förderpumpe weist zumindest einer der Abschnitte eine Fläche auf, so dass die Zirkulationsströmung einen wechselnden Abstand zur Wandung des teilringförmigen Kanals hat.Such feed pumps are often used as fuel pumps and are known in practice. By designing the cross section of the partially annular channel with a plurality of sections, the delivery chamber composed of the partially annular channel and the blade chambers is to be adapted to the circulation flow generated therein. In the feed pump known from practice, at least one of the sections has a surface, so that the circulation flow has an alternating distance from the wall of the partially annular channel.
Nachteilig bei der bekannten Förderpumpe ist, dass an den Übergängen der Abschnitte und damit in den Bereichen, in denen die ZirkulationsStrömung einen besonders großen Abstand zu der Wandung des teilringförmigen Kanals hat, Wirbel entstehen, die zu einer starken Verringerung des Wirkungsgrades der Förderpumpe führen.A disadvantage of the known feed pump is that vortices occur at the transitions of the sections and thus in the areas in which the circulation flow is at a particularly large distance from the wall of the partially annular channel, which lead to a sharp reduction in the efficiency of the feed pump.
Zur Vermeidung der Verwirbelungen ist bei einer aus der EP 0 646 727 Bl bekannten Förderpumpe der Querschnitt der Förderkammer als Teil einer Ellipse gestaltet, wobei die Tiefe des teilringförmigen Kanals kleiner als die Hälfte der Nebenachse der Ellipse ist. Hierdurch werden flache Abschnitte im Bereich der Förderkammer vermieden. Nachteilig bei dieser Förderpumpe ist jedoch, dass Verwirbelungen im Eintrittsbereich und im Austrittsbereich der Zirkulationsstromung im teilringförmigen Kanal entstehen, da die Förderkammer insbesondere in an die Schaufelkammer angrenzenden Bereichen spitz zulaufende Taschen bildet und damit die Zirkulationsströmung einen veränderlichen Abstand zu der Wandung des teilringförmigen Kanals hat. Weiterhin ist die elliptische Gestaltung des Querschnitts des teilringförmigen Kanals nur sehr schwierig zu fertigen.To avoid the turbulence, the cross section of the delivery chamber in a delivery pump known from EP 0 646 727 B1 is designed as part of an ellipse, the depth of the partially annular channel being less than half is the minor axis of the ellipse. This avoids flat sections in the region of the delivery chamber. A disadvantage of this feed pump, however, is that turbulence occurs in the inlet area and in the outlet area of the circulation flow in the partially annular channel, since the delivery chamber forms tapering pockets, particularly in areas adjacent to the vane chamber, and the circulation flow is therefore at a variable distance from the wall of the partially annular channel. Furthermore, the elliptical design of the cross section of the partially annular channel is very difficult to manufacture.
Der Erfindung liegt das Problem zugrunde, eine Förderpumpe der eingangs genannten Art so zu gestalten, dass Verwirbelungen in dem teilringförmigen Kanal vermieden werden und dass die Förderpumpe einen besonders hohen Wirkungsgrad hat .The invention is based on the problem of designing a feed pump of the type mentioned at the outset in such a way that eddies in the partially annular channel are avoided and that the feed pump has a particularly high degree of efficiency.
Dieses Problem wird erfindungsgemäß dadurch gelöst, dass jeder der Abschnitte von einem Radius gebildet ist.This problem is solved according to the invention in that each of the sections is formed by a radius.
Durch diese Gestaltung lässt sich die Förderkammer einfach auf die Zirkulationsströmung des zu fördernden Mediums und dessen Viskosität anpassen. Veränderlichen Abstände zwischen der Zirkulationsströmung lassen sich jedoch einfach vermeiden. Daher werden Verwirbelungen innerhalb der Förderpumpe zuverlässig vermieden. Die erfindungsgemäße Förderpumpe hat deshalb einen besonders hohen Wirkungsgrad. Ein weiterer Vorteil dieser Gestaltung besteht darin, dass sich durch eine geeignete Wahl der Radien und der Abschnitte das Wirkungsgradoptimum auf den Arbeitspunkt der Förderpumpe legen lässt .With this design, the delivery chamber can be easily adapted to the circulation flow of the medium to be delivered and its viscosity. Changing distances between the circulation flow can easily be avoided. Turbulence within the feed pump is therefore reliably avoided. The feed pump according to the invention therefore has a particularly high efficiency. Another advantage of this design is that the optimum efficiency can be placed on the operating point of the feed pump by a suitable choice of the radii and the sections.
Zur weiteren Verringerung der Verwirbelungen innerhalb der Zirkulationsströmung trägt es gemäß einer vorteilhaf- ten Weiterbildung der Erfindung bei, wenn die Radien der Abschnitte tangential ineinander übergehen.To further reduce the turbulence within the circulation flow, it contributes according to an advantageous Further development of the invention when the radii of the sections merge tangentially.
Im Ein- und Austrittsbereich der Zirkulationsströmung in den teilringförmigen Kanal werden Verwirbelungen gemäß einer anderen vorteilhaften Weiterbildung der Erfindung zuverlässig vermieden, wenn der Ursprung der Radien der äußersten Abschnitte im wesentlichen auf der Ebene der dem Laufrad zugewandten Stirnseite des Pumpengehäuses angeordnet ist . Hierdurch sind die äußeren Abschnitte in ihren an die Schaufelkammer angrenzenden Bereichen rechtwinklig zu der Stirnseite des Laufrades angeordnet. Deshalb gelangt die Strömung verwirbelungsfrei aus den Schaufelkammern in den teilringförmigen Kanal .In the inlet and outlet area of the circulation flow into the partially annular channel, turbulence is reliably avoided according to another advantageous development of the invention if the origin of the radii of the outermost sections is arranged essentially on the level of the end face of the pump housing facing the impeller. As a result, the outer sections are arranged at right angles to the end face of the impeller in their regions adjacent to the blade chamber. Therefore, the flow flows from the vane chambers into the partially annular channel without swirling.
Die erfindungsgemäße Förderpumpe lässt sich durch insgesamt drei bis fünf Abschnitte besonders kostengünstig fertigen.The feed pump according to the invention can be manufactured particularly inexpensively by a total of three to five sections.
Zur weiteren Erhöhung des Wirkungsgrades der erfindungsgemäßen Förderpumpe trägt es bei, wenn die Abschnitte zueinander symmetrisch angeordnet sind.It contributes to further increasing the efficiency of the feed pump according to the invention if the sections are arranged symmetrically to one another.
Die Erfindung lässt zahlreiche Ausführungsformen zu. Zur weiteren Verdeutlichung ihres Grundprinzips sind mehrere davon in der Zeichnung dargestellt und werden nachfolgend beschrieben. Diese zeigt inThe invention permits numerous embodiments. To further clarify its basic principle, several of them are shown in the drawing and are described below. This shows in
Fig.l eine Schnittdarstellung durch eine erfindungsgemäße Förderpumpe ,1 shows a sectional view through a feed pump according to the invention,
Fig.2 einen stark vergrößerten Teilschnitt im Bereich einer Förderkammer der Förderpumpe aus Figur 1, Fig.3, 4 weitere Ausführungsformen der Förderkammer der Förderpumpe im Teilschnitt.2 shows a greatly enlarged partial section in the region of a delivery chamber of the delivery pump from FIG. 1, 3, 4 further embodiments of the feed chamber of the feed pump in partial section.
Figur 1 zeigt eine von einem Elektromotor 1 angetriebene, als Seitenkanalpumpe ausgebildete Förderpumpe 2. Eine solche Förderpumpe 2 lässt sich beispielsweise zur Förderung von Kraftstoff in einem heutigen Kraftfahrzeug einsetzen. Die Förderpumpe 2 hat ein zwischen zwei Gehäuse- teilen 3, 4 eines Pumpengehäuses 5 angetriebenes Laufrad 6. Das Laufrad 6 ist hierfür auf einer Welle 7 des Elektromotors 1 befestigt. Die Gehäuseteile 3, 4 des Pumpengehäuses 5 werden mittels eines ringförmigen Abstandhalters 8 auf Abstand gehalten. Das Laufrad 6 hat in seinen Stirnseiten jeweils einen Kranz Schaufelkammern 9. In den den Kränzen der Schaufelkammern 9 gegenüberliegenden Bereichen der Gehäuseteile 3, 4 sind teilringförmige KanäleFIG. 1 shows a feed pump 2, which is driven by an electric motor 1 and is designed as a side channel pump. Such a feed pump 2 can be used, for example, to deliver fuel in a motor vehicle today. The feed pump 2 has an impeller 6 driven between two housing parts 3, 4 of a pump housing 5. For this purpose, the impeller 6 is fastened on a shaft 7 of the electric motor 1. The housing parts 3, 4 of the pump housing 5 are kept at a distance by means of an annular spacer 8. The impeller 6 has a ring of blade chambers 9 in its end faces. In the regions of the housing parts 3, 4 opposite the rings of the blade chambers 9 there are partially annular channels
10 angeordnet. Die Schaufelkammern 9 und die teilringförmigen Kanäle 10 bilden sich von einem Einlasskanal 11 zu einem Auslasskanal 12 der Förderpumpe 2 erstreckende Förderkammern 13. Bei einem Antrieb des Laufrades 6 durch den Elektromotor 1 wird ein Medium durch den Einlasskanal10 arranged. The vane chambers 9 and the part-ring-shaped channels 10 form delivery chambers 13 extending from an inlet channel 11 to an outlet channel 12 of the feed pump 2. When the impeller 6 is driven by the electric motor 1, a medium becomes through the inlet channel
11 angesaugt und über die Förderkammern zu dem Auslasskanal 12 geführt. Innerhalb der Förderkammern 13 bilden sich Zirkulationsströmungen. Zur Verdeutlichung sind in der Zeichnung die Strömungen des geförderten Mediums mit Pfeilen gekennzeichnet.11 sucked in and led to the outlet channel 12 via the delivery chambers. Circulation flows form within the delivery chambers 13. For clarification, the flows of the medium being conveyed are marked with arrows in the drawing.
Figur 2 zeigt in einer stark vergrößerten Darstellung einen Querschnitt einer der Förderkammern 13 aus Figur 1. Die Schaufelkammern 9 im Laufrad 6 haben einen annähernd halbkreisförmigen oder halb-elliptischen Querschnitt. Der Querschnitt des teilringförmigen Kanals 10 hat drei jeweils einen Radius R2 ' , R2 ' ' aufweisende Abschnitte 14 - 16. Der Ursprung der beiden äußeren Radien R2 ' befindet sich auf der Stirnseite des Gehäuseteils 3, während der Ursprung des mittleren Radius R2 ' ' auf der senkrecht auf der Stirnseite des Gehäuseteils 3 stehenden Symmetrieachse des teilringförmigen Kanals 10 liegt. An ihren anein- andergrenzenden Bereichen weisen die Abschnitte 14 - 16 jeweils eine gemeinsame Tangente auf. In der dargestellten Ausführungsform haben die beiden äußeren Radien R2 ' ungefähr den Radius 1,4 Längeneinheiten, während der mittlere Radius R2 ' ' 1,6 beträgt.FIG. 2 shows, in a greatly enlarged illustration, a cross section of one of the delivery chambers 13 from FIG. 1. The blade chambers 9 in the impeller 6 have an approximately semicircular or semi-elliptical cross section. The cross section of the partially annular channel 10 has three sections 14-16 each having a radius R 2 ', R 2 ''. The origin of the two outer radii R 2 ' is located on the end face of the housing part 3, while the origin of the central radius R 2 '' on the vertical the end of the housing part 3 is the axis of symmetry of the partially annular channel 10. The sections 14-16 each have a common tangent at their adjoining regions. In the embodiment shown, the two outer radii R 2 'have approximately the radius 1.4 length units, while the mean radius R 2 ''is 1.6.
Figur 3 zeigt eine weitere Ausführungsform der Förderkammer 13 aus Figur 1 im Querschnitt, welche sich von der aus Figur 2 dadurch unterscheidet, dass die Radien R3 ' der beiden äußeren Abschnitte 14, 16 jeweils 0,3 Längeneinheiten betragen, während der mittlere Abschnitt 15 einen Radius R3 ' ' von 8 Längeneinheiten hat. Figur 4 zeigt ebenfalls eine weitere Ausführungsform der Förderkammer 13 aus Figur 1 im Querschnitt, bei der die Radien R ' der äußeren Abschnitte 14, 16 jeweils 10 Längeneinheiten betragen und der mittlere Abschnitt 15 einen Radius R4 ' ' von 1,4 Längeneinheiten aufweist. FIG. 3 shows a further embodiment of the delivery chamber 13 from FIG. 1 in cross section, which differs from that from FIG. 2 in that the radii R 3 'of the two outer sections 14, 16 are each 0.3 length units, while the central section 15 has a radius R 3 '' of 8 length units. FIG. 4 also shows a further embodiment of the delivery chamber 13 from FIG. 1 in cross section, in which the radii R 'of the outer sections 14, 16 are each 10 length units and the middle section 15 has a radius R 4 ''of 1.4 length units.

Claims

Patentansprüche claims
1. Förderpumpe mit einem angetriebenen, sich in einem Pumpengehäuse drehenden Laufrad, mit zumindest einem Kranz Schaufelkammern, mit einem dem Kranz der Schaufel - kammer in der Wandung des Pumpengehäuses gegenüberliegend angeordneten, sich von einem Einlasskanal zu einem Auslasskanal erstreckenden teilringförmigen Kanal, wobei der Querschnitt des teilringförmigen Kanals mehrere Abschnitte aufweist, dadurch gekennzeichnet, dass jeder der Abschnitte (14 - 16) von einem Radius gebildet ist.1. Delivery pump with a driven impeller rotating in a pump housing, with at least one ring of vane chambers, with a partially annular channel arranged opposite the ring of the vane chamber in the wall of the pump housing and extending from an inlet channel to an outlet channel, the cross section of the partially annular channel has a plurality of sections, characterized in that each of the sections (14-16) is formed by a radius.
2. Förderpumpe nach Anspruch 1, dadurch gekennzeichnet, dass die Radien der Abschnitte (14 - 16) tangential ineinander übergehen.2. Feed pump according to claim 1, characterized in that the radii of the sections (14 - 16) merge tangentially into one another.
3. Förderpumpe nach Anspruch 1 oder 2 , dadurch gekennzeichnet, dass der Ursprung der Radien der äußersten Abschnitte (14, 16) im Wesentlichen auf der Ebene der dem Laufrad (6) zugewandten Stirnseite des Pumpengehäuses (5) angeordnet ist.3. Feed pump according to claim 1 or 2, characterized in that the origin of the radii of the outermost sections (14, 16) is arranged substantially at the level of the end face of the pump housing (5) facing the impeller (6).
4. Förderpumpe nach zumindest einem der vorhergehenden Ansprüche, gekennzeichnet durch insgesamt drei bis fünf Abschnitte (14 - 16) .4. Feed pump according to at least one of the preceding claims, characterized by a total of three to five sections (14-16).
5. Förderpumpe nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Abschnitte5. Feed pump according to at least one of the preceding claims, characterized in that the sections
(14 - 16) zueinander symmetrisch angeordnet sind. (14 - 16) are arranged symmetrically to each other.
EP02772031A 2001-09-06 2002-08-29 Supply pump Expired - Fee Related EP1423613B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10143809 2001-09-06
DE10143809A DE10143809C1 (en) 2001-09-06 2001-09-06 Side channel feed pump e.g. automobile fuel pump, has tangential transitions between different sections of partial annular channel enclosing paddle chambers of pump wheel
PCT/DE2002/003170 WO2003021109A1 (en) 2001-09-06 2002-08-29 Supply pump

Publications (2)

Publication Number Publication Date
EP1423613A1 true EP1423613A1 (en) 2004-06-02
EP1423613B1 EP1423613B1 (en) 2010-08-11

Family

ID=7697986

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02772031A Expired - Fee Related EP1423613B1 (en) 2001-09-06 2002-08-29 Supply pump

Country Status (8)

Country Link
US (1) US7497656B2 (en)
EP (1) EP1423613B1 (en)
JP (1) JP2005501198A (en)
KR (1) KR20040041599A (en)
CN (1) CN1270095C (en)
BR (1) BR0212330B1 (en)
DE (2) DE10143809C1 (en)
WO (1) WO2003021109A1 (en)

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Publication number Priority date Publication date Assignee Title
US6984099B2 (en) 2003-05-06 2006-01-10 Visteon Global Technologies, Inc. Fuel pump impeller
US20040258545A1 (en) * 2003-06-23 2004-12-23 Dequan Yu Fuel pump channel
DE102005042228B4 (en) * 2005-09-05 2015-07-23 DüRR DENTAL AG suction machine

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DE3128372A1 (en) * 1981-07-17 1983-02-03 Friedrich 8541 Röttenbach Schweinfurter "PERIPHERAL CHANNEL PUMP"
JPS59141795A (en) 1983-01-31 1984-08-14 Nippon Denso Co Ltd Regenerating pump
US5257916A (en) * 1992-11-27 1993-11-02 Walbro Corporation Regenerative fuel pump
US5375971A (en) * 1993-10-04 1994-12-27 Ford Motor Company Automotive fuel pump flow channel design
JPH0979168A (en) 1995-09-12 1997-03-25 Unisia Jecs Corp Turbine pump
DE19943261A1 (en) 1999-09-10 2001-03-15 Mannesmann Vdo Ag Feed pump
ES2194667T3 (en) 1999-11-23 2003-12-01 Siemens Ag FUEL PUMP.

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Title
See references of WO03021109A1 *

Also Published As

Publication number Publication date
EP1423613B1 (en) 2010-08-11
US7497656B2 (en) 2009-03-03
CN1270095C (en) 2006-08-16
DE50214583D1 (en) 2010-09-23
JP2005501198A (en) 2005-01-13
CN1551952A (en) 2004-12-01
WO2003021109A1 (en) 2003-03-13
BR0212330B1 (en) 2011-11-16
BR0212330A (en) 2004-09-21
US20040247426A1 (en) 2004-12-09
KR20040041599A (en) 2004-05-17
DE10143809C1 (en) 2002-10-17

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