EP1423613B1 - Supply pump - Google Patents

Supply pump Download PDF

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Publication number
EP1423613B1
EP1423613B1 EP02772031A EP02772031A EP1423613B1 EP 1423613 B1 EP1423613 B1 EP 1423613B1 EP 02772031 A EP02772031 A EP 02772031A EP 02772031 A EP02772031 A EP 02772031A EP 1423613 B1 EP1423613 B1 EP 1423613B1
Authority
EP
European Patent Office
Prior art keywords
sections
supply pump
annular channel
radii
channel
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
Application number
EP02772031A
Other languages
German (de)
French (fr)
Other versions
EP1423613A1 (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
Continental Automotive GmbH
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 Continental Automotive GmbH filed Critical Continental Automotive GmbH
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

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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, rotating in a pump housing impeller, with at least one rim blade chambers, with a rim of the blade chamber in the wall of the pump housing disposed opposite, extending from an inlet channel to an outlet channel partially annular channel, wherein the cross section of the part-annular channel has a plurality of 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.
  • EP 0 646 727 B1 known conveying pump In order to avoid the turbulence is at one of the, the next coming state of the art forming, EP 0 646 727 B1 known conveying pump, the cross section of the delivery chamber designed as part of an ellipse, wherein the depth of the partially annular channel is smaller than half is the minor axis of the ellipse. As a result, flat portions are avoided in the region of the delivery chamber.
  • a disadvantage of this pump is, however, that turbulence in the inlet region and in the outlet region of the circulation flow in the semi-annular channel arise because the delivery chamber forms tapering pockets in particular in adjoining the blade chamber areas and thus the circulation flow has a variable distance from the wall of the semi-annular channel. Furthermore, the elliptical design of the cross section of the part-annular channel is very difficult to manufacture.
  • the invention is based on the problem to design a feed pump of the type mentioned so that turbulence in the part-annular channel can be avoided and that the feed pump has a particularly high efficiency.
  • the delivery chamber can be easily adapted to the circulation flow of the medium to be pumped and its viscosity.
  • variable distances between the circulation flow can be easily avoided. Therefore turbulence within the feed pump can be reliably avoided.
  • the feed pump according to the invention therefore has a particularly high efficiency.
  • Another advantage of this design is that can be set by a suitable choice of the radii and the sections, the optimum efficiency on the operating point of the pump.
  • turbulences are reliably avoided according to another advantageous embodiment of the invention, when the origin of the radii of the outermost portions is disposed substantially on the plane of the impeller facing end side of the pump housing.
  • the outer portions are arranged in their adjacent to the blade chamber areas perpendicular to the end face of the impeller. Therefore, the flow passes without turbulence from the vane chambers in the part-annular channel.
  • the feed pump according to the invention can be made particularly cost-effective by a total of three to five sections.
  • the sections are arranged symmetrically to each other.
  • FIG. 1 shows a driven by an electric motor 1, designed as a side channel pump feed pump 2.
  • a pump 2 can be used for example for the promotion of fuel in a modern motor vehicle.
  • the feed pump 2 has a driven between two housing parts 3, 4 of a pump housing 5 impeller 6.
  • the impeller 6 is for this purpose mounted on a shaft 7 of the electric motor 1.
  • the housing parts 3, 4 of the pump housing 5 are held by means of an annular spacer 8 at a distance.
  • the impeller 6 has in its end faces in each case a wreath blade chambers 9. In the wreaths of the blade chambers 9 opposite areas of the housing parts 3, 4 partially annular channels 10 are arranged.
  • the blade chambers 9 and the partially annular channels 10 form delivery chambers 13 extending from an inlet channel 11 to an outlet channel 12 of the delivery pump 2.
  • a medium is drawn in through the inlet channel 11 and via the delivery chambers to the outlet channel 12 led.
  • circulation flows form. For clarity, the flows of the pumped medium are marked with arrows in the drawing.
  • FIG. 2 shows in a greatly enlarged view of 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 part-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 on the front side of the housing part 3, while the origin of the middle radius R 2 "on the upright the end face of the housing part 3 standing symmetry axis of the part-annular channel 10 is located.
  • sections 14-16 each have a common tangent.
  • the two outer radii R 2 ' have approximately the radius 1.4 units of length, while the average 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 the FIG. 2 differs in that the radii R 3 'of the two outer portions 14, 16 are each 0.3 length units, while the central portion 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 4 'of the outer portions 14, 16 are each 10 units of length and the central portion 15 has a radius R 4 ''of 1.4 length units.

Description

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, rotating in a pump housing impeller, with at least one rim blade chambers, with a rim of the blade chamber in the wall of the pump housing disposed opposite, extending from an inlet channel to an outlet channel partially annular channel, wherein the cross section of the part-annular channel has a plurality of 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 part-annular channel having 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 case of 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 that at the transitions of the sections and thus in the areas in which the circulation flow has a particularly large distance from the wall of the semi-annular channel, vortexes arise, which lead to a strong reduction in the efficiency of the feed pump.

Zur Vermeidung der Verwirbelungen ist bei einer aus der, der nächst Kommenden Stand der Technik bildenden, EP 0 646 727 B1 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 Zirkulationsströmung 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.In order to avoid the turbulence is at one of the, the next coming state of the art forming, EP 0 646 727 B1 known conveying pump, the cross section of the delivery chamber designed as part of an ellipse, wherein the depth of the partially annular channel is smaller than half is the minor axis of the ellipse. As a result, flat portions are avoided in the region of the delivery chamber. A disadvantage of this pump is, however, that turbulence in the inlet region and in the outlet region of the circulation flow in the semi-annular channel arise because the delivery chamber forms tapering pockets in particular in adjoining the blade chamber areas and thus the circulation flow has a variable distance from the wall of the semi-annular channel. Furthermore, the elliptical design of the cross section of the part-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 to design a feed pump of the type mentioned so that turbulence in the part-annular channel can be avoided and that the feed pump has a particularly high efficiency.

Dieses Problem wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst.This problem is solved by the features of claim 1.

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.By this design, the delivery chamber can be easily adapted to the circulation flow of the medium to be pumped and its viscosity. However, variable distances between the circulation flow can be easily avoided. Therefore turbulence within the feed pump can be reliably avoided. The feed pump according to the invention therefore has a particularly high efficiency. Another advantage of this design is that can be set by a suitable choice of the radii and the sections, the optimum efficiency on the operating point of the pump.

Zur weiteren Verringerung der Verwirbelungen innerhalb der Zirkulationsströmung trägt es gemäß einer vorteilhaften 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 Development of the invention, when the radii of the sections merge tangentially into each other.

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 of the circulation flow in the part-annular channel turbulences are reliably avoided according to another advantageous embodiment of the invention, when the origin of the radii of the outermost portions is disposed substantially on the plane of the impeller facing end side of the pump housing. As a result, the outer portions are arranged in their adjacent to the blade chamber areas perpendicular to the end face of the impeller. Therefore, the flow passes without turbulence from the vane chambers in the part-annular channel.

Die erfindungsgemäße Förderpumpe lässt sich durch insgesamt drei bis fünf Abschnitte besonders kostengünstig fertigen.The feed pump according to the invention can be made particularly cost-effective 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.To further increase the efficiency of the feed pump according to the invention, it is beneficial if the sections are arranged symmetrically to each other.

Die Erfindung lässt zahlreiche Ausführungsformen zu. Zur weiteren Verdeutlichung ihres Grundprinzips sind mehrere davon in der Zeichnung dargestellt und werden nachfolgend beschrieben. Diese zeigt in

Fig.1
eine Schnittdarstellung durch eine erfin- dungsgemäße Förderpumpe,
Fig.2
einen stark vergrößerten Teilschnitt im Be- reich einer Förderkammer der Förderpumpe aus Figur 1,
Fig.3, 4
weitere Ausführungsformen der Förderkammer der Förderpumpe im Teilschnitt.
The invention allows numerous embodiments. To further clarify its basic principle, several of them are shown in the drawing and will be described below. This shows in
Fig.1
a sectional view through an inventive pump,
Fig.2
a greatly enlarged partial section in the area of a delivery chamber of the feed pump FIG. 1 .
3, 4
further embodiments of the delivery 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 Gehäuseteilen 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 Kanäle 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 Einlasskanal 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. FIG. 1 shows a driven by an electric motor 1, designed as a side channel pump feed pump 2. Such a pump 2 can be used for example for the promotion of fuel in a modern motor vehicle. The feed pump 2 has a driven between two housing parts 3, 4 of a pump housing 5 impeller 6. The impeller 6 is for this purpose mounted on a shaft 7 of the electric motor 1. The housing parts 3, 4 of the pump housing 5 are held by means of an annular spacer 8 at a distance. The impeller 6 has in its end faces in each case a wreath blade chambers 9. In the wreaths of the blade chambers 9 opposite areas of the housing parts 3, 4 partially annular channels 10 are arranged. The blade chambers 9 and the partially annular channels 10 form delivery chambers 13 extending from an inlet channel 11 to an outlet channel 12 of the delivery pump 2. When the rotor 6 is driven by the electric motor 1, a medium is drawn in through the inlet channel 11 and via the delivery chambers to the outlet channel 12 led. Within the delivery chambers 13, circulation flows form. For clarity, the flows of the pumped medium 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 aneinandergrenzenden 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 view of 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 part-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 on the front side of the housing part 3, while the origin of the middle radius R 2 "on the upright the end face of the housing part 3 standing symmetry axis of the part-annular channel 10 is located. At their contiguous areas, sections 14-16 each have a common tangent. In the illustrated embodiment, the two outer radii R 2 'have approximately the radius 1.4 units of length, while the average 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 R4' 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 the FIG. 2 differs in that the radii R 3 'of the two outer portions 14, 16 are each 0.3 length units, while the central portion 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 4 'of the outer portions 14, 16 are each 10 units of length and the central portion 15 has a radius R 4 ''of 1.4 length units.

Claims (4)

  1. Supply pump (2) having a driven impeller (6) which rotates in a pump housing (5), having at least one ring of vane chambers, and having a partially annular channel (10) which is arranged in the wall of the pump housing (5) lying opposite the ring of vane chambers (9) and extends from an inlet channel (11) to an outlet channel (12), the cross section of the partially annular channel (10) having a plurality of sections (14 - 16), characterized in that a total of three to five sections (14 - 16) are present, each of the sections (14 - 16) is formed by a radius and adjacent sections (14 - 16) have different radii.
  2. Supply pump according to Claim 1, characterized in that the radii of the sections (14 - 16) merge tangentially into one another.
  3. Supply pump according to Claim 1 or 2, characterized in that the origin of the radii of the outermost sections (14, 16) is arranged essentially on the plane of the end side of the pump housing (5) facing the impeller (6).
  4. Supply pump according to at least one of the preceding claims, characterized in that the sections (14 - 16) are arranged symmetrically to one another.
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
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
DE10143809 2001-09-06
PCT/DE2002/003170 WO2003021109A1 (en) 2001-09-06 2002-08-29 Supply pump

Publications (2)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
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

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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.

Also Published As

Publication number Publication date
US7497656B2 (en) 2009-03-03
DE10143809C1 (en) 2002-10-17
EP1423613A1 (en) 2004-06-02
KR20040041599A (en) 2004-05-17
DE50214583D1 (en) 2010-09-23
US20040247426A1 (en) 2004-12-09
CN1551952A (en) 2004-12-01
WO2003021109A1 (en) 2003-03-13
JP2005501198A (en) 2005-01-13
CN1270095C (en) 2006-08-16
BR0212330A (en) 2004-09-21
BR0212330B1 (en) 2011-11-16

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