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EP1292774A1 - Pompe a canal lateral - Google Patents

Pompe a canal lateral

Info

Publication number
EP1292774A1
EP1292774A1 EP01943198A EP01943198A EP1292774A1 EP 1292774 A1 EP1292774 A1 EP 1292774A1 EP 01943198 A EP01943198 A EP 01943198A EP 01943198 A EP01943198 A EP 01943198A EP 1292774 A1 EP1292774 A1 EP 1292774A1
Authority
EP
European Patent Office
Prior art keywords
impeller
side channel
channel pump
housing
pump according
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
EP01943198A
Other languages
German (de)
English (en)
Other versions
EP1292774B1 (fr
Inventor
Peter Marx
Cicero Constantin
Jörg Deubner
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
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 EP1292774A1 publication Critical patent/EP1292774A1/fr
Application granted granted Critical
Publication of EP1292774B1 publication Critical patent/EP1292774B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—Bearings
    • F04D29/047—Bearings hydrostatic; hydrodynamic
    • 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
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/041—Axial thrust balancing
    • F04D29/0413—Axial thrust balancing hydrostatic; hydrodynamic thrust bearings
    • 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 side channel pump with an impeller rotatably arranged in a pump housing, with an inlet channel and an outlet channel arranged in the housing, with rotor blades arranged in the impeller for conveying a liquid from the inlet channel to the outlet channel and with guide means for guiding the impeller in an axial direction and / or radial position.
  • Such side channel pumps are frequently used in today's motor vehicles, in particular for conveying fuel or windshield washer fluid, and are known from practice.
  • the pump housing is composed of two housing parts, which are kept at a distance by an intermediate ring with dimensions corresponding to the height of the impeller.
  • the known side channel pumps often have pockets in the area between their center and the rotor blades, in which pockets a small part of the medium to be conveyed is collected.
  • the impeller floats on the medium held in the pockets. Radial forces acting on the impeller are usually absorbed by the bearing of a drive shaft of an electric motor that drives the side channel pump.
  • the disadvantage here is that the guide of the impeller is very inadequate and generally does not prevent the impeller from grinding against the housing.
  • the side channel pump has a very low efficiency due to the friction losses that occur during grinding. Furthermore, the gap between the impeller and the pump housing in the area of the blades fluctuates due to the insufficient guidance. This leads to a further reduction in the efficiency of the side channel pump.
  • the invention is based on the problem of developing a side channel pump of the type mentioned at the outset in such a way that friction losses are avoided as reliably as possible.
  • This problem is solved according to the invention in that the guide means are arranged in the region of the edge of the impeller.
  • the guide means only extend over a particularly small portion of the impeller.
  • the liquid to be delivered has a particularly high pressure due to friction on the impeller and due to centrifugal forces. This allows large managers to be transferred to the wheel.
  • the radially outer partial area can be manufactured with a particularly high degree of accuracy with little manufacturing effort. Additional components for guiding the impeller are not necessary thanks to the invention.
  • the side channel pump according to the invention is also particularly cost-effective.
  • the guide means could, for example, have a ring with a large number of individual runners. To further reduce the manufacturing costs of the side channel pump according to the invention, it is helpful if the guide means have at least one guide surface that is opposite a corresponding area of the housing at a specified distance.
  • a gap between the region of the impeller having the rotor blades and the housing can be designed independently of a gap arranged in the region of the guide means if the guide means have a cross-sectional change arranged in the region of the edge of the impeller and if that Areas of the impeller forming cross-sectional changes are each designed as guide surfaces that face the housing at a specified distance.
  • the gap which is decisive for the friction and executives of the impeller can be set to a predetermined value independently of the gap which is decisive for the characteristic curve of the feed pump in the region of the rotor blades.
  • the cross-sectional change can be produced particularly inexpensively if the cross-sectional change is designed in a step-like manner.
  • the impeller can be guided both axially and radially by means of a single guide surface if the cross-sectional change is designed as a chamfer.
  • the cross-sectional change designed as a chamfer is able to guide the impeller sufficiently radially and axially if the guide surface is arranged at an angle of approximately 30 to 60 ° to the end face of the impeller.
  • the guide means only need a single guide surface on one side.
  • the gap between the impeller and the housing in the area of the rotor blades can be set to a particularly precise height if the edge has a guide surface facing each end face. This contributes to further improving the efficiency of the side channel pump according to the invention.
  • cost-intensive intermediate rings to be inserted into the pump housing can be easily avoided if two housing parts which are opposite one another and surround the impeller adjoin one another in the region of the largest diameter of the impeller.
  • the height of the gap can also be set with particularly small tolerances. This contributes to a further increase in the efficiency of the side channel pump according to the invention.
  • the invention permits numerous embodiments. To further clarify its basic principle, two of them are shown in the drawing and are described below. This shows in
  • FIG. 1 shows a longitudinal section through a side channel pump according to the invention with adjacent areas of an electric motor
  • Fig. 2 shows a longitudinal section through a further embodiment of the side channel pump according to the invention.
  • FIG. 1 shows a longitudinal section through a side channel pump 1 according to the invention with adjacent areas of an electric motor 2.
  • the side channel pump 1 has an impeller 4 that can be rotated in a housing 3.
  • the impeller 4 is arranged on a motor shaft 5 of the electric motor 2.
  • the housing 3 has two spaced housing parts 6, 7 and a rolled sheet metal strip 8.
  • the metal strip 8 holds the side channel pump 1 in an intended position relative to the electric motor 2.
  • An inlet channel 9 is arranged in one of the housing parts 7, while the other housing part 6 has an outlet duct 10.
  • the inlet channel 9 and the outlet channel 10 are each connected to partially annular channels 11, 12.
  • the impeller 4 has vane chambers 15, 16 delimited by rotor blades 13, 14 in the region of the partially annular channels 11, 12.
  • the housing 3 faces the impeller 4 to form sealing gaps at a short distance.
  • the side channel pump 1 has guide means 17 for the radial and axial guidance of the impeller 4.
  • the guide means 17 have two guide surfaces 18, 19 which are designed as a guide surface 18, 19 and extend from the central region of the edge to the end faces listed cross-sectional reductions.
  • the impeller 4 is opposite the housing 3 at an intended distance.
  • the housing parts 6, 7 adjoin one another in the region of the largest diameter of the impeller 4.
  • the liquid to be conveyed is conveyed from the inlet channel 9 to the outlet channel 10. In doing so, rich of the blades 13, 14 a small amount of the liquid to be pumped into the gap between the impeller 4 and the housing 3.
  • This liquid is conveyed into the region of the guide means 17 by friction and centrifugal forces and is generated depending on the spacing of the guide surfaces 18th , 19 from the housing 3 and the angle of the guide surfaces 18, 19 to the end faces of the impeller 4, forces in the axial and radial direction on the impeller 4.
  • the guide surfaces 18, 19 are mirror images of one another.
  • the guide surface 19 facing the electric motor 2 can, however, be dispensed with if a rotor of the electric motor 2 rests on the impeller 4 and thus an intended axial force is generated.
  • the guide surfaces 18, 19 or the area of the housing parts 6, 7 opposite the guide surfaces 18, 19 can have coatings with emergency running properties or for reducing sliding friction or pockets known from slide bearings for receiving the liquid to be conveyed.
  • FIG. 2 shows a side channel pump 20 in which the guide means 21 have an abrupt reduction in cross-section which points from the central region of the edge to the end faces of an impeller 22.
  • a radial guide surface 23 and an axial guide surface 24 are each arranged on the regions adjoining the end faces.
  • a housing 25 of the side channel pump has a shape corresponding to the guide surfaces 23, 24 in this area.
  • the impeller 22 has axial and radial slide bearings in its radially outer region.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne une pompe à canal latéral (1) sur laquelle sont agencés des éléments de guidage (17) permettant le guidage radial et/ou axial de la turbine (4) dans la zone radialement extérieure de ladite turbine. Ces éléments de guidage (17) présentent des surfaces de guidage (18, 19) agencées, au niveau de la turbine (4), à un angle prédéfini par rapport aux faces avants de cette turbine. Selon la présente invention, des pertes par friction de la pompe à canal latéral (1) sont maintenues à un niveau particulièrement bas.
EP01943198A 2000-06-21 2001-03-27 Pompe a canal lateral Expired - Lifetime EP1292774B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10030604A DE10030604A1 (de) 2000-06-21 2000-06-21 Seitenkanalpumpe
DE10030604 2000-06-21
PCT/EP2001/003473 WO2001098664A1 (fr) 2000-06-21 2001-03-27 Pompe a canal lateral

Publications (2)

Publication Number Publication Date
EP1292774A1 true EP1292774A1 (fr) 2003-03-19
EP1292774B1 EP1292774B1 (fr) 2010-05-26

Family

ID=7646529

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01943198A Expired - Lifetime EP1292774B1 (fr) 2000-06-21 2001-03-27 Pompe a canal lateral

Country Status (8)

Country Link
US (1) US6540474B2 (fr)
EP (1) EP1292774B1 (fr)
JP (1) JP2004501318A (fr)
CN (1) CN1383475A (fr)
AU (1) AU6584301A (fr)
BR (1) BR0106877A (fr)
DE (2) DE10030604A1 (fr)
WO (1) WO2001098664A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10212505A1 (de) * 2002-03-20 2003-10-02 Siemens Ag Seitenkanalpumpe
US6932562B2 (en) * 2002-06-18 2005-08-23 Ti Group Automotive Systems, L.L.C. Single stage, dual channel turbine fuel pump
US7037066B2 (en) * 2002-06-18 2006-05-02 Ti Group Automotive Systems, L.L.C. Turbine fuel pump impeller
KR100568547B1 (ko) * 2003-07-28 2006-04-07 현담산업 주식회사 개선된 형상의 임펠러를 구비하는 자동차용 터빈형전동기식연료펌프
DE102006053933A1 (de) * 2006-11-15 2008-05-21 Siemens Ag Seitenkanalpumpe
EP2433012B1 (fr) 2009-05-20 2015-11-04 Edwards Limited Pompe à canal latéral avec palier à gaz axial
US9249806B2 (en) 2011-02-04 2016-02-02 Ti Group Automotive Systems, L.L.C. Impeller and fluid pump
DE202015007633U1 (de) 2015-11-05 2015-12-22 Innovative Fertigungstechnologie Gmbh (Ift) Saugzwischenstück einer Seitenkanalkreiselpumpe
DE102016218331A1 (de) * 2016-09-23 2018-03-29 Bayerische Motoren Werke Aktiengesellschaft Waschwasserdosiervorrichtung für ein Kraftfahrzeug, hiermit ausgestattetes Reinigungssystem sowie hiermit ausgestattetes Kraftfahrzeug
DE102017215731A1 (de) 2017-09-07 2019-03-07 Robert Bosch Gmbh Seitenkanalverdichter für ein Brennstoffzellensystem zur Förderung und/oder Verdichtung von einem gasförmigen Medium
DE102018204713A1 (de) 2018-03-28 2019-10-02 Robert Bosch Gmbh Seitenkanalverdichter für ein Brennstoffzellensystem zur Förderung und/oder Verdichtung von einem gasförmigen Medium
DE102018207891A1 (de) * 2018-05-18 2019-11-21 Robert Bosch Gmbh Seitenkanalverdichter für ein Brennstoffzellensystem zur Förderung und/oder Verdichtung von einem gasförmigen Medium

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2045851A (en) * 1934-09-12 1936-06-30 Richmond Turbine Pump Co Inc Pump
US2113116A (en) * 1935-04-09 1938-04-05 James O Mcmillan Regenerative turbine pump
US3257955A (en) * 1964-02-04 1966-06-28 Gen Electric Flow control for turbine pump
US3915589A (en) * 1974-03-29 1975-10-28 Gast Manufacturing Corp Convertible series/parallel regenerative blower
DE3123579A1 (de) * 1981-06-13 1982-12-30 Bosch Gmbh Robert Aggregat zum foerdern von kraftstoff aus einem vorratstank zu einem verbrennungsmotor
DE3427112A1 (de) * 1984-07-23 1986-01-23 Friedrich 8541 Röttenbach Schweinfurter Seitenkanalpumpe mit kraefteausgleich
DE3719621A1 (de) * 1987-06-12 1988-12-29 Pierburg Gmbh Seitenkanalpumpe zur brennstoffoerderung
JPH05231372A (ja) * 1992-02-25 1993-09-07 Daikin Ind Ltd 流体機械及び流体機械の軸受方法
US5358373A (en) * 1992-04-29 1994-10-25 Varian Associates, Inc. High performance turbomolecular vacuum pumps
DE4315448A1 (de) * 1992-05-19 1993-12-23 Lederle Pumpen & Maschf Peripheralrad-Pumpe
DE4435883A1 (de) * 1994-10-07 1996-04-11 Bosch Gmbh Robert Aggregat zum Fördern von Kraftstoff aus einem Vorratsbehälter zur Brennkraftmaschine eines Kraftfahrzeuges
DE4444704B4 (de) * 1994-12-15 2004-09-09 Siemens Ag Motorisch angetriebene Pumpe
DE19615322A1 (de) * 1996-04-18 1997-10-23 Vdo Schindling Peripheralpumpe
DE19634734A1 (de) * 1996-08-28 1998-03-05 Bosch Gmbh Robert Strömungspumpe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0198664A1 *

Also Published As

Publication number Publication date
DE10030604A1 (de) 2002-01-03
EP1292774B1 (fr) 2010-05-26
US6540474B2 (en) 2003-04-01
BR0106877A (pt) 2002-05-14
DE50115491D1 (de) 2010-07-08
US20020021975A1 (en) 2002-02-21
JP2004501318A (ja) 2004-01-15
AU6584301A (en) 2002-01-02
CN1383475A (zh) 2002-12-04
WO2001098664A1 (fr) 2001-12-27

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