EP1131560B1 - Pompe regenerative - Google Patents

Pompe regenerative Download PDF

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Publication number
EP1131560B1
EP1131560B1 EP00969250A EP00969250A EP1131560B1 EP 1131560 B1 EP1131560 B1 EP 1131560B1 EP 00969250 A EP00969250 A EP 00969250A EP 00969250 A EP00969250 A EP 00969250A EP 1131560 B1 EP1131560 B1 EP 1131560B1
Authority
EP
European Patent Office
Prior art keywords
impeller
vane
end side
chambers
region
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 - Lifetime
Application number
EP00969250A
Other languages
German (de)
English (en)
Other versions
EP1131560A1 (fr
Inventor
Hans-Dieter Wilhelm
Holger Barth
Matthias Staab
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
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Publication of EP1131560A1 publication Critical patent/EP1131560A1/fr
Application granted granted Critical
Publication of EP1131560B1 publication Critical patent/EP1131560B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/188—Rotors specially for regenerative pumps

Definitions

  • the invention relates to a feed pump with a driven, rotating in a pump housing, in its end faces at least one rim blade chambers bounding vanes having impeller in which the blade chambers have an inflow and a Ausström Scheme for the medium to be conveyed, and with at least a portion of the vanes arranged in the pump housing partially annular channel, which forms with the blade chambers a delivery chamber from an inlet channel to an outlet channel, wherein the contour of the blade chambers is formed by at least one radius having an origin within the delivery chamber.
  • Such feed pumps are often used for conveying fuel in a fuel tank or for conveying washing liquid in a windscreen washer system of a motor vehicle and are known in practice.
  • the known feed pump has in each case a ring of vane chambers in both end faces of the impeller.
  • the vane chambers are bounded in the radially outer direction by a straight, perpendicular to the end faces of the impeller wall.
  • the pointing to the radially inner direction of the impeller contour of the blade chambers is generated by a radius.
  • the origin of the radius is arranged on the center line arranged perpendicular to the end faces of the impeller. This origin is also the origin of a second, the part-annular channel forming radius.
  • a disadvantage of the known feed pump is that the feed pump generates turbulence in the medium to be conveyed. These turbulences lead to a low efficiency of the feed pump. At close to the boiling point media, such as hot gasoline fuel, there is also the risk of the formation of vapor bubbles within the delivery chamber. The vapor bubbles lead to a strong reduction in the volume flow delivered by the feed pump.
  • the invention is based on the problem of designing a feed pump of the type mentioned so that it has the highest possible efficiency and reliably avoids the formation of vapor bubbles.
  • the blade chamber has, in its region formed by the radius, a contour that rises very flatly from the end face.
  • This flat design changes a circulation flow in the delivery chamber between the impeller and the pump housing. Since the circulation flow experiences only a small deflection in this area, the risk of turbulence is kept particularly low. This also avoids the formation of vapor bubbles.
  • the impeller can be manufactured inexpensively according to an advantageous embodiment of the invention, when the origins of a plurality of radii for opposing contours of the blade chambers on a common, parallel to the end face of the impeller extending plane are arranged within the impeller.
  • the circulation flow swirled here can settle down again quickly if the blade chambers have boundaries perpendicular to the end face of the impeller from the plane parallel to the end face of the impeller to the front end ,
  • the impeller has according to another advantageous embodiment of the invention simply constructed blade chambers and can therefore be manufactured particularly cost-effective, if the origins of two, each opposing contours generating radii are arranged mirror images of the center line of the blade chamber.
  • the center line can be designed as a line of symmetry for the contour pointing to the center of the impeller and the contour pointing away from the center of the impeller.
  • the feed pump according to the invention has a particularly high efficiency when the distance of the origins of the radii from the center line has approximately the same amount as their distance from the end face.
  • Opposed vane chambers could be interconnected as in the known feed pump in a radially outer region of the impeller. To further increase the efficiency of the feed pump according to the invention, however, it contributes, when mirror-inverted in both end faces of the impeller oppositely arranged vane chambers are interconnected exclusively in the region of the center line. This allows the circulation flow With very little turbulence from the one delivery chamber into the other delivery chamber overflow. The danger of the formation of vapor bubbles is thereby also kept particularly low.
  • FIG. 1 shows a longitudinal section through a driven by an electric motor 1, designed as an axially flow-through side channel pump feed pump 2, which may be provided for example for conveying fuel from a fuel tank of a motor vehicle, not shown.
  • the feed pump 2 has a pump housing 3, in which a rotatably mounted on a shaft 4 of the electric motor 1 fixed impeller 5 is arranged.
  • the pump housing 3 has on its side facing away from the electric motor 1 an inlet channel 6 and on the side facing the electric motor 1 an outlet 7.
  • the inlet channel 6 opens into a delivery chamber 8.
  • a second delivery chamber 9 opens into the outlet 7.
  • the delivery chambers 8, 9th each have in the pump housing 3 incorporated, part-annular channels 10, 11 and arranged in the impeller 5 blade chambers 12, 13.
  • the blade chambers 12, 13 are each delimited by guide vanes 14, 15 and each have an inflow region 16, 17 for the inflow of the medium to be conveyed and an outflow area 18, 19. Between the inflow region 16, 17 and the outflow region 18, 19, mutually opposed blade chambers 12, 13 are connected to one another.
  • FIG 2 shows greatly enlarged the feed pump 2 of Figure 1 in the region of the delivery chambers 8, 9.
  • the blade chambers 12, 13 are each designed symmetrically to a perpendicular to an end face extending center line.
  • the vane chambers 12, 13 each have a contour formed by radii R in the inflow regions 16, 17 and in the outflow regions 18, 19.
  • the radii R in this case have seen from the respective contour from behind the center line origin.
  • the origins of the radii R are also located in a common plane parallel to the end face of the impeller 5 level.
  • the planes of the blade chambers 12, 13 are shown in phantom in the drawing.
  • the circulation flow passes with particularly small turbulences from the part-annular channels 10, 11 in the blade chambers 12, 13.
  • the plane of the origins of the radii R has approximately the same distance from the end face of the impeller 5 as the origins of the radii R from the center line.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Rotary Pumps (AREA)
  • Liquid Developers In Electrophotography (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Claims (5)

  1. Pompe d'alimentation (2) comportant un rotor (5) entraîné, tournant dans un corps de pompe (3) et ayant, dans ses faces latérales, au moins une couronne d'aubes directrices (14, 15) limitant des chambres d'aubes (12, 13), dans laquelle les chambres d'aubes (12, 13) ont, pour le fluide à transporter, une zone d'admission (16, 17) et une zone d'éjection (18, 19), et au moins un canal en forme d'anneau partiel (10, 11) disposé dans la zone des aubes directrices (14, 15) dans le corps de pompe (3), canal qui forme, avec les chambres d'aubes (12, 13), une cavité de transport (8, 9) allant d'un canal d'admission (6) vers un canal d'éjection (7), où le contour des chambres d'aubes (12, 13) est généré par au moins un rayon (R) dont l'origine est à l'intérieur de la cavité de transport (8, 9), caractérisée par le fait que l'origine des rayons (R), vue à partir du contour de la chambre d'aubes (12, 13) déterminé par le rayon (R), est disposée dans la zone opposée à une ligne médiane de la chambre d'aubes (12, 13) perpendiculaire à la face latérale du rotor (5) et que les origines de plusieurs rayons (R) pour des contours des chambres d'aubes (12, 13) se faisant face sont disposées, à l'intérieur d'un rotor (5), sur un plan commun parallèle à la face latérale du rotor (5).
  2. Pompe d'alimentation selon la revendication 1 caractérisée par le fait que les chambres d'aubes (12, 13) comportent, du plan parallèle à la face latérale du rotor (5) jusqu'à la face latérale, dans leurs zones voisines des aubes directrices (14, 15), des limitations perpendiculaires à la face latérale du rotor(5).
  3. Pompe d'alimentation selon au moins l'une des revendications précédentes caractérisée par le fait que les origines de deux rayons (R) générant des contours se faisant face l'un à l'autre sont symétriques par rapport à la ligne médiane des chambres d'aubes (12, 13).
  4. Pompe d'alimentation selon au moins l'une des revendications précédentes caractérisée par le fait que la distance des origines des rayons (R) de la ligne médiane est approximativement égale à leur distance de la face latérale.
  5. Pompe d'alimentation selon au moins l'une des revendications précédentes caractérisée par le fait que des chambres d'aubes (12, 13) placées l'une en face de l'autre d'une façon symétrique dans les deux faces latérales du rotor (5) sont exclusivement reliées l'une à l'autre dans la zone de la ligne médiane.
EP00969250A 1999-09-10 2000-08-26 Pompe regenerative Expired - Lifetime EP1131560B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19943261 1999-09-10
DE19943261A DE19943261A1 (de) 1999-09-10 1999-09-10 Förderpumpe
PCT/EP2000/008334 WO2001020169A1 (fr) 1999-09-10 2000-08-26 Pompe regenerative

Publications (2)

Publication Number Publication Date
EP1131560A1 EP1131560A1 (fr) 2001-09-12
EP1131560B1 true EP1131560B1 (fr) 2006-03-22

Family

ID=7921458

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00969250A Expired - Lifetime EP1131560B1 (fr) 1999-09-10 2000-08-26 Pompe regenerative

Country Status (11)

Country Link
US (1) US6481958B1 (fr)
EP (1) EP1131560B1 (fr)
JP (1) JP4608165B2 (fr)
KR (1) KR100763055B1 (fr)
CN (1) CN1294360C (fr)
AT (1) ATE321209T1 (fr)
AU (1) AU7903700A (fr)
BR (1) BR0007089B1 (fr)
DE (2) DE19943261A1 (fr)
ES (1) ES2256046T3 (fr)
WO (1) WO2001020169A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10143809C1 (de) * 2001-09-06 2002-10-17 Siemens Ag Förderpumpe
US7037066B2 (en) 2002-06-18 2006-05-02 Ti Group Automotive Systems, L.L.C. Turbine fuel pump impeller
US6932562B2 (en) * 2002-06-18 2005-08-23 Ti Group Automotive Systems, L.L.C. Single stage, dual channel turbine fuel pump
KR100568547B1 (ko) * 2003-07-28 2006-04-07 현담산업 주식회사 개선된 형상의 임펠러를 구비하는 자동차용 터빈형전동기식연료펌프
JP2005226496A (ja) * 2004-02-10 2005-08-25 Mitsubishi Electric Corp 円周流ポンプ
US9249806B2 (en) 2011-02-04 2016-02-02 Ti Group Automotive Systems, L.L.C. Impeller and fluid pump
DE102017215731A1 (de) * 2017-09-07 2019-03-07 Robert Bosch Gmbh Seitenkanalverdichter für ein Brennstoffzellensystem zur Förderung und/oder Verdichtung von einem gasförmigen Medium

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4020521A1 (de) * 1990-06-28 1992-01-02 Bosch Gmbh Robert Peripheralpumpe, insbesondere zum foerdern von kraftstoff aus einem vorratstank zur brennkraftmaschine eines kraftfahrzeuges
DE19615322A1 (de) * 1996-04-18 1997-10-23 Vdo Schindling Peripheralpumpe
DE19749404C1 (de) * 1997-11-07 1999-05-06 Mannesmann Vdo Ag Förderpumpe
US5921746A (en) * 1998-10-14 1999-07-13 Ford Motor Company Fuel pump chamber with contamination control

Also Published As

Publication number Publication date
ES2256046T3 (es) 2006-07-16
CN1321224A (zh) 2001-11-07
ATE321209T1 (de) 2006-04-15
AU7903700A (en) 2001-04-17
BR0007089B1 (pt) 2009-01-13
JP2003509625A (ja) 2003-03-11
WO2001020169A1 (fr) 2001-03-22
BR0007089A (pt) 2001-08-07
US6481958B1 (en) 2002-11-19
DE19943261A1 (de) 2001-03-15
EP1131560A1 (fr) 2001-09-12
KR20010080987A (ko) 2001-08-25
KR100763055B1 (ko) 2007-10-02
CN1294360C (zh) 2007-01-10
JP4608165B2 (ja) 2011-01-05
DE50012450D1 (de) 2006-05-11

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