EP1389280A1 - Pompe d'alimentation - Google Patents

Pompe d'alimentation

Info

Publication number
EP1389280A1
EP1389280A1 EP02745068A EP02745068A EP1389280A1 EP 1389280 A1 EP1389280 A1 EP 1389280A1 EP 02745068 A EP02745068 A EP 02745068A EP 02745068 A EP02745068 A EP 02745068A EP 1389280 A1 EP1389280 A1 EP 1389280A1
Authority
EP
European Patent Office
Prior art keywords
impeller
molded part
feed pump
pump according
recess
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Withdrawn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
EP02745068A
Other languages
German (de)
English (en)
Inventor
Bernd Jäger
Peter Marx
Hans-Peter Osburg
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 EP1389280A1 publication Critical patent/EP1389280A1/fr
Withdrawn legal-status Critical Current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
    • 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, in particular a fuel pump, with a driven impeller which rotates between two housing parts and carries at least one ring of vane vanes and has guide vanes which are arranged in the region of the vane chambers in the housing parts and extend from an inlet duct to an outlet duct and with a fixed molded part arranged on the outer circumference of the impeller, the molded part having a recess ha adjoining the partially annular channel.
  • Such a feed pump designed as a peripheral pump is known, for example, from DE 43 33 204 C2.
  • guide vanes are arranged on both sides of the impeller on the outer circumference.
  • the molded part has a radially inward-facing edge axially delimiting two recesses. This edge faces the outer boundaries of the guide vanes.
  • a feed pump is known in which an edge of the impeller and an edge of the molded part face each other.
  • a disadvantage of these feed pumps is that the guide vanes are designed to be very small in relation to the total cross-sectional area of the partially annular channel, the recess and the vane chambers. As a result, only a very small moment can be transferred to the flow to be conveyed. That is why the feed pumps have a particularly low efficiency.
  • the invention is based on the problem of designing a feed pump of the type mentioned at the outset in such a way that it has a particularly high degree of efficiency.
  • the blade chambers are partially arranged in the region of the molded part.
  • the guide vanes can extend over all areas located outside the part-annular channel.
  • the guide vanes therefore have a particularly large area and are also arranged particularly radially on the outside.
  • the feed pump according to the invention has a particularly high efficiency.
  • the feed pump according to the invention has the advantage of being particularly insensitive to contamination of the medium to be conveyed, since in the radially outer region of the impeller there are no mutually opposing flat surfaces of the impeller Impeller and the pump housing are present, between which dirt can accumulate. This leads to a particularly low susceptibility to wear, particularly in the case of the feed pump used as a fuel pump.
  • the molded part can be designed as a spacer spaced apart from the housing parts.
  • the feed pump according to the invention has a particularly high efficiency if the molded part has two recesses delimited by a radially inward edge and if guide vanes are arranged on opposite end faces face the axial boundaries of the edge with a small distance.
  • turbulences of the medium to be conveyed in the region of the recess can be kept particularly low if the guide vanes are designed in an arcuate manner in their region protruding into the recess.
  • the guide vanes preferably have a substantially semicircular shape in a radial section through the impeller.
  • dirt adhering to surfaces of the molded part or the housing parts can be avoided particularly reliably if the guide blades protrude from the outer edge of the impeller by at least half its height.
  • the feed pump according to the invention can optionally be designed for a separation or an axial flow through mutually opposing blade chambers if the outer edge of the impeller and the radially inwardly facing edge of the molded part are opposite one another with an intended distance.
  • the assembly of the feed pump according to the invention is particularly simple if the molded part has at least two ring elements.
  • the molded part can have a closed ring shape and can therefore be produced and assembled particularly cost-effectively if the impeller is designed in two layers.
  • Wear that leads to a decrease in the efficiency of the feed pump according to the invention can be Avoid them if the molded part is made of a harder material than the impeller.
  • the feed pump according to the invention has a particularly high stability if the molded part has a wall made of metal or ceramic in the region of the recess when the impeller is made of plastic.
  • FIG. 1 shows a sectional view through a feed pump according to the invention
  • FIG. 2 shows a sectional view through the feed pump from FIG. 1 along the line II-II,
  • FIG. 3 shows a greatly enlarged sectional view through the feed pump from FIG. 2 along the line III-III,
  • FIG. 4 shows a greatly enlarged sectional illustration of a further embodiment of the feed pump in the region of a feed chamber.
  • FIG. 1 shows a feed pump 2 driven by an electric motor 1, for example for delivering fuel in a motor vehicle today.
  • the feed pump 2 has an impeller 7 which is driven between two housing parts 3, 4 of a pump housing 5 and is fastened to a shaft 6 of the electric motor 1.
  • the housing parts 3, 4 are kept at a distance by means of an annular molded part 8.
  • the impeller 7 has a ring of guide vanes 9 on each of its end faces. 10.
  • the guide vanes 9 protrude beyond the edge of the impeller 7 and penetrate into circumferential recesses 11 in the molded part 8. Between the recesses 11, the molded part 8 has a rim 12 projecting radially inwards between opposing guide vanes 9.
  • Partially annular channels 13 are arranged in the regions of the housing parts 3, 4 opposite the vane chambers 10.
  • the blade chambers 10 and the partially annular channels 13 form delivery chambers 16 extending from an inlet channel 14 to an outlet channel 15 of the feed pump 2.
  • the inlet channel 14 and the outlet channel 15 each have an overflow channel 17, 18 arranged in the molded part 8 and guided past the impeller 7
  • the impeller 7 is driven by the electric motor 1
  • the medium to be conveyed is sucked in through the inlet channel 14 and guided to the outlet channel 15 via the delivery chambers 16.
  • Circulation flows each form within the delivery chambers 16.
  • the flows of the medium being conveyed are marked with arrows in the drawing.
  • the inlet duct 14 and the outlet duct 15 are shown rotated in the sectional plane in FIG.
  • FIG. 2 shows in a sectional view through the feed pump 2 from FIG. 1 along the line II-II
  • the part-ring-shaped channels 13 extend over an angular range of approximately 300 °.
  • the guide vanes 9 each extend over half their height in the impeller 7 and in the recess 11 of the molded part 8.
  • the molded part 8 is composed of two ring elements 19, 20.
  • FIG 3 shows a greatly enlarged portion of the feed pump 2 of Figure 2 in a sectional view along the line III - III.
  • the guide vanes 9 are approximately semicircular.
  • the recesses 11 of the molded part 8 have a the impeller 7 projecting region of the guide vanes 9 corresponding arcuate contour.
  • the areas of the guide vanes 9 protruding into the recesses 11 of the molded part 8 are opposite the wall thereof by a small distance.
  • a partial area of the blade chambers 10 is arranged within the molded part 8.
  • the radially inward edge 12 of the molded part 8 is opposite a radially outward edge 21 of the impeller 7 at a short distance.
  • FIG. 4 shows a partial section through a radially outer region of a further embodiment of the feed pump 2 from FIG. 1.
  • This embodiment differs from that from FIG. 3 primarily in that an impeller 24 rotating between two housing parts 22, 23 is designed in two layers.
  • a molded part 25 which keeps the housing parts at a distance can be designed in one piece in an annular manner.
  • a radially inward edge 26 of the molded part 25 is at a distance from a radially outward edge 27 of the impeller 24. This allows the medium to be conveyed to flow from one delivery chamber 28 into the other delivery chamber 29.
  • Overflow channels 17, 18 shown in FIG. 1 are therefore not required.
  • guide vanes 30 fastened on the impeller 24 protrude into recesses 31 in the molded part 25 and face the wall thereof at a short distance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Rotary Pumps (AREA)

Abstract

L'invention concerne une pompe d'alimentation (2) dans laquelle des aubes directrices (9) fixées sur une roue mobile (7) commandée font saillie dans une cavité (11) d'une pièce moulée (8) entourant la roue mobile (7) de manière annulaire. Les aubes directrices (9) sont situées à faible distance en face de la paroi de la cavité (11). Les aubes directrices (9) présentent de ce fait une surface particulièrement grande. L'invention permet également d'éviter de fixer des salissures dans la zone extérieure radiale de la roue mobile (7).
EP02745068A 2001-05-22 2002-05-17 Pompe d'alimentation Withdrawn EP1389280A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10125142 2001-05-22
DE10125142A DE10125142A1 (de) 2001-05-22 2001-05-22 Förderpumpe
PCT/DE2002/001831 WO2002095236A1 (fr) 2001-05-22 2002-05-17 Pompe d'alimentation

Publications (1)

Publication Number Publication Date
EP1389280A1 true EP1389280A1 (fr) 2004-02-18

Family

ID=7685871

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02745068A Withdrawn EP1389280A1 (fr) 2001-05-22 2002-05-17 Pompe d'alimentation

Country Status (8)

Country Link
US (1) US7066711B2 (fr)
EP (1) EP1389280A1 (fr)
JP (1) JP2004526898A (fr)
KR (1) KR20040000452A (fr)
CN (1) CN1511232A (fr)
BR (1) BR0209967A (fr)
DE (1) DE10125142A1 (fr)
WO (1) WO2002095236A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005018469A1 (de) * 2005-04-21 2006-11-02 Robert Bosch Gmbh Vorrichtung zum Fördern von Kraftstoff aus einem Kraftstofftank zur Brennkraftmaschine eines Kraftfahrzeuges
EP2433009A1 (fr) 2009-05-20 2012-03-28 Edwards Limited Compresseur à canal latéral avec disque de rotor symétrique pompant en parallèle
DE102016203343A1 (de) * 2016-03-01 2017-09-07 Mahle International Gmbh Pumpvorrichtung

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE872819C (de) * 1944-11-04 1953-04-09 Siemens Ag Ringverdichter
US3315607A (en) * 1965-06-04 1967-04-25 Trw Inc Multi-stage drag pump
GB2036179B (en) 1978-11-28 1983-03-23 Compair Ind Ltd Regenerative rotodynamic compressors and pumps
DE3823514A1 (de) 1988-07-12 1990-01-18 Kayser Herold Uwe Seitenkanalmaschine
DE4134875C2 (de) * 1991-10-23 2000-04-20 Mannesmann Vdo Ag Kraftstoff-Fördereinrichtung
US5338165A (en) * 1991-11-25 1994-08-16 Ford Motor Company Automotive fuel pump with modular pump housing
US5257916A (en) * 1992-11-27 1993-11-02 Walbro Corporation Regenerative fuel pump
US5586858A (en) * 1995-04-07 1996-12-24 Walbro Corporation Regenerative fuel pump
DE19749406A1 (de) * 1997-11-07 1999-05-12 Mannesmann Vdo Ag Pumpe mit einem Pumpenrad
US6402460B1 (en) * 2000-08-01 2002-06-11 Delphi Technologies, Inc. Abrasion wear resistant fuel pump

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO02095236A1 *

Also Published As

Publication number Publication date
BR0209967A (pt) 2004-04-06
JP2004526898A (ja) 2004-09-02
KR20040000452A (ko) 2004-01-03
US20040170493A1 (en) 2004-09-02
DE10125142A1 (de) 2002-12-05
US7066711B2 (en) 2006-06-27
CN1511232A (zh) 2004-07-07
WO2002095236A1 (fr) 2002-11-28

Similar Documents

Publication Publication Date Title
DE69408246T2 (de) Kraftstoffpumpe
EP2196679B1 (fr) Roue pour un ventilateur radiale
DE69113616T2 (de) Seitenkanalpumpe.
DE19607573B4 (de) Kraftstoffpumpe und Verfahren zu ihrer Herstellung
DE19904560A1 (de) Elektrisch angetriebene Kraftstoffpumpe mit sich verengendem Pumpkanal
DE102015100214A1 (de) Seitenkanalgebläse für eine Verbrennungskraftmaschine
DE4318122C2 (de) Aggregat zum Fördern von Kraftstoff aus einem Vorratstank zur Brennkraftmaschine eines Kraftfahrzeugs
WO2001081767A1 (fr) Pompe d'alimentation
EP0491130B1 (fr) Pompe à eau pour circuit de refroidissement pour usage sur le carter d'un moteur à combustion interne
EP1369588A1 (fr) Pompe du type gerotor
EP1292774B1 (fr) Pompe a canal lateral
EP1389280A1 (fr) Pompe d'alimentation
WO2008058983A1 (fr) Pompe à canal latéral
DE3717229A1 (de) Blechlaufrad kleiner foerderleistung, insbesondere fuer kuehlmittelpumpen
EP1187991B1 (fr) Pompe d'alimentation
EP1348078A1 (fr) Pompe d'alimentation
EP3728859A1 (fr) Ventilateur à canal latéral, notamment ventilateur à aire secondaire pour moteur à combustion interne
EP2342465B1 (fr) Soufflante à canal latéral, en particulier turbine secondaire pour un moteur à combustion interne
EP0520303A2 (fr) Palier à glissement avec un manteau élastique pour un moteur de pompe centrifuge
DE19916370A1 (de) Kreiselpumpe
EP1423613B1 (fr) Pompe d'alimentation
DE102011086128A1 (de) Kreiselpumpe zum Fördern von Flüssigkeiten in einem Kraftfahrzeug
EP1451473B1 (fr) Roue mobile pour pompe regenerative
DE69407275T2 (de) Tangentialströmungs-Pumpkanal für Turbomolekularpumpen
DE19902626C2 (de) Seitenkanalgebläse

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20031001

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

17Q First examination report despatched

Effective date: 20050316

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20060802