WO2008058983A1 - Pompe à canal latéral - Google Patents

Pompe à canal latéral Download PDF

Info

Publication number
WO2008058983A1
WO2008058983A1 PCT/EP2007/062316 EP2007062316W WO2008058983A1 WO 2008058983 A1 WO2008058983 A1 WO 2008058983A1 EP 2007062316 W EP2007062316 W EP 2007062316W WO 2008058983 A1 WO2008058983 A1 WO 2008058983A1
Authority
WO
WIPO (PCT)
Prior art keywords
impeller
pockets
side channel
pump housing
pump
Prior art date
Application number
PCT/EP2007/062316
Other languages
German (de)
English (en)
Inventor
Eberhard Geissel
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
Priority to EP07822576A priority Critical patent/EP2054627A1/fr
Priority to JP2009536728A priority patent/JP4852153B2/ja
Priority to CN2007800426445A priority patent/CN101548109B/zh
Priority to US12/513,629 priority patent/US20100021282A1/en
Publication of WO2008058983A1 publication Critical patent/WO2008058983A1/fr

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
    • F04D29/18—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
    • 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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/041—Axial thrust balancing
    • 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
    • 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

Definitions

  • the invention relates to a side channel pump for conveying a medium from an inlet channel to an outlet channel with a driven, rotatable in a pump housing impeller, with at least one arranged in one of the end faces of the impeller rim blade chambers, with at least one disposed in the pump housing, the rim blade chambers opposite , the partially annular channel extending from the inlet channel to the outlet channel, having a rim disposed radially outwardly of the rim of the blade chambers on the face of the impeller, and a peripheral portion of the pump housing and having an annular gap disposed between the rim of the impeller and the portion of the pump housing ,
  • Such side channel pumps are often used for example in today's motor vehicles, in particular for conveying fuel or windscreen washer fluid and are known in practice.
  • the pump housing is composed of two housing parts, which are kept at a distance from one of the height of the impeller corresponding dimensions having intermediate ring.
  • the distance between the impeller and the pump housing is usually only a few hundredths of a millimeter.
  • there is a risk of grinding of the impeller on the pump housing which leads to increased friction and a reduction in the efficiency of the side channel pump.
  • the risk of grinding the impeller is exacerbated by manufacturing tolerances and by axial forces acting on the impeller.
  • Such forces acting on the impeller arise, for example, when the inlet channel is arranged on one end side of the impeller and the outlet channel on the other end side of the impeller.
  • the invention is based on the problem, a side channel pump of the type mentioned in such a way that it largely avoids grinding of the impeller on the pump housing.
  • the annular gap has at least one pocket for receiving the conveyed medium and that the at least one pocket is formed by an increase in the distance of the edge of the impeller from the opposite portion of the pump housing.
  • the impeller experiences during operation of the side channel pump according to the invention through the bag an axial pressurization on the edge, whereby the impeller is kept away from the housing part.
  • the position of the pocket ensures that resulting axial forces act on the radially outer edge of the impeller.
  • the forces for holding the impeller in an intended position in the pump housing due to the leverage effect are kept particularly low.
  • Promoting the medium from one of the pockets to the next pocket as the impeller rotates would result in unnecessary circulation of the medium, and thus its heating and unnecessary energy consumption.
  • Such a promotion can be easily avoided according to another advantageous embodiment of the invention, when the distance of adjacent pockets at least equal to the length of a pocket.
  • a tilting of the impeller can be particularly greatly reduced according to another advantageous embodiment of the invention, when the pockets are arranged on both end faces of the impeller.
  • three pockets are arranged on both sides of the impeller.
  • a feed of the pockets with the conveyed medium from the radially outer circumferential gap between impeller and pump housing is particularly simple according to another advantageous development of the invention, when the pockets extend from the edge of the impeller beyond the radial boundary of the impeller.
  • This radially outer circumferential gap between the pump housing and the impeller is constantly filled with leakage by the conveyed medium.
  • the average pressure which is less than a pump internal pressure and greater than the suction pressure.
  • the average pressure differs in almost all angular positions along the part-annular channel from the pressure acting in the annular gap between the impeller and the pump housing. Therefore, the average pressure is particularly suitable to compensate for tilting moments on the impeller.
  • the impeller has according to another advantageous embodiment of the invention, a hydraulic bearing, with which it adjusts the distance to the pump housing automatically when the pockets are arranged as depressions in the impeller.
  • a balancing in the impeller can be largely avoided according to another advantageous embodiment of the invention, if the pockets are arranged as recesses in the pump housing. Furthermore, tilting moments introduced by the arrangement of the inlet channel and the outlet channel into the impeller can be easily compensated by an uneven arrangement of the pockets over the circumference of the impeller. Of course, pockets may be located in both the impeller and the pump housing.
  • the invention allows numerous embodiments. To further clarify its basic principle, two of them are shown in the drawing and will be described below. This shows in
  • FIG. 1 shows a longitudinal section through an inventive side tenkanalpumpe with adjacent areas of an electric motor
  • FIG. 2 is a sectional view through the side channel pump according to the invention from Figure 1 along the line II - II,
  • FIG 3 shows a longitudinal section through a further embodiment of the side channel pump according to the invention.
  • the side channel pump 1 shows a longitudinal section through a side channel pump 1 with adjacent regions of an electric motor 2.
  • the side channel pump 1 has a rotatable in a pump housing 3 impeller 4.
  • the impeller 4 is disposed on a shaft 5 of the electric motor 2.
  • the pump housing 3 has two of a ring member 6 at a distance held housing parts 7, 7 'and a jacket 8.
  • the ring member 6 is dimensioned such that the housing parts 7, 7' facing the end faces of the impeller 4 at a small distance.
  • the jacket 8 holds the side channel pump 1 in a predetermined position relative to the electric motor 2 and biases the housing parts 7, 7 'of the pump housing 3 against the ring element 6.
  • an inlet channel 9 is arranged, while the other of the housing parts 7 'has an outlet channel 10.
  • the inlet channel 9 and the outlet channel 10 are each connected to in the housing parts 7, 7 'arranged, part-annular channels 11, 12.
  • the impeller 4 has rings of blade chambers 13, 14 bounded by guide vanes.
  • the partially annular channels 11, 12 form with the blade chambers 13, 14 a delivery chamber leading from the inlet channel 9 to the outlet channel 10
  • the impeller 4 has an edge 15 at its front side.
  • the side channel pump 1 Between the circumference of the impeller 4 and the ring element 6, the side channel pump 1 has A circumferential gap 16 filled by leakage with the medium to be delivered. Between the edge 15 and the opposite section 17 of the pump housing 3, the side channel pump 1 has an annular gap 18 with widenings 19. The widenings 19 are generated by pockets 20 arranged in the pump housing 3. The spacers 19 extend from the front edge 15 of the impeller 4 to the circumferential gap 16. This ensures that the pockets 20 are constantly filled with the medium to be delivered.
  • FIG. 2 shows, in a sectional illustration through the side channel pump 1 from FIG. 1 along the line II-II on the example of one of the housing parts 7 ', that a total of three pockets 20 are arranged over the circumference of the impeller 4. To clarify the radial outer boundary of the impeller 4 is shown in dashed lines in the drawing.
  • FIG. 3 shows a further embodiment of the side channel pump 1 according to the invention, which differs from that of FIGS. 1 and 2 only in that pockets 21 of the annular gap are arranged in an impeller 22. Housing parts 23, 23 'of the side channel pump 1, however, have no recesses. Otherwise, the side channel pump 1 is constructed as described for FIGS. 1 and 2.

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

Pompe à canal latéral (1) pour véhiculer un fluide, avec une roue mobile (4) présentant une couronne de chambres de palettes (13, 14). Cette pompe présente des poches (20) dans une région radialement extérieure, délimitée par les chambres de palettes (13, 14). Les poches (20) sont remplies du fluide à véhiculer par l'intermédiaire de fuites et elles produisent une force axiale sur la roue mobile (4). La roue mobile (4) est ainsi maintenue de manière fiable dans la pompe à canal latéral (1).
PCT/EP2007/062316 2006-11-15 2007-11-14 Pompe à canal latéral WO2008058983A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP07822576A EP2054627A1 (fr) 2006-11-15 2007-11-14 Pompe à canal latéral
JP2009536728A JP4852153B2 (ja) 2006-11-15 2007-11-14 サイドチャンネルポンプ
CN2007800426445A CN101548109B (zh) 2006-11-15 2007-11-14 侧通道泵
US12/513,629 US20100021282A1 (en) 2006-11-15 2007-11-14 Side-Channel Pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006053933A DE102006053933A1 (de) 2006-11-15 2006-11-15 Seitenkanalpumpe
DE102006053933.8 2006-11-15

Publications (1)

Publication Number Publication Date
WO2008058983A1 true WO2008058983A1 (fr) 2008-05-22

Family

ID=39110595

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/062316 WO2008058983A1 (fr) 2006-11-15 2007-11-14 Pompe à canal latéral

Country Status (7)

Country Link
US (1) US20100021282A1 (fr)
EP (1) EP2054627A1 (fr)
JP (1) JP4852153B2 (fr)
KR (1) KR20090082921A (fr)
CN (1) CN101548109B (fr)
DE (1) DE102006053933A1 (fr)
WO (1) WO2008058983A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2433011A1 (fr) 2009-05-20 2012-03-28 Edwards Limited Pompe régénératrice à vide avec moyens d'équilibrage de la poussée axiale
US9249806B2 (en) 2011-02-04 2016-02-02 Ti Group Automotive Systems, L.L.C. Impeller and fluid pump
KR101886432B1 (ko) * 2011-12-23 2018-09-07 엘지디스플레이 주식회사 유기전계발광표시장치 및 이의 제조 방법
DE102012223592A1 (de) 2012-12-18 2014-07-03 Robert Bosch Gmbh Geometrie zum Ausgleich axial auftretender Spalte in Elektropumpen
DE102016122344B4 (de) * 2016-11-21 2018-08-16 Preh Gmbh Betätigungseinrichtung und deren Verwendung für ein elektromechanisches oder hydromechanisches Kraftfahrzeuggetriebe insbesondere eines landwirtschaftlichen Nutzfahrzeugs

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4678395A (en) * 1984-07-23 1987-07-07 Friedrich Schweinfurter Regenerative pump with force equalization
US5310308A (en) * 1993-10-04 1994-05-10 Ford Motor Company Automotive fuel pump housing with rotary pumping element
DE19634734A1 (de) * 1996-08-28 1998-03-05 Bosch Gmbh Robert Strömungspumpe
US20020021975A1 (en) * 2000-06-21 2002-02-21 Mannesmann Vdo Side-channel pump
DE10246694A1 (de) * 2002-10-07 2004-04-15 Siemens Ag Seitenkanalpumpe

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59211791A (ja) * 1983-05-18 1984-11-30 Hitachi Ltd 渦流れ形ポンプ
DE4243544C2 (de) * 1992-12-22 2003-04-17 Bosch Gmbh Robert Kraftstofförderpumpe
DE4411627A1 (de) * 1994-04-02 1995-10-05 Bosch Gmbh Robert Aggregat zum Fördern von Kraftstoff aus einem Vorratstank zur Brennkraftmaschine eines Kraftfahrzeuges
DE19615322A1 (de) * 1996-04-18 1997-10-23 Vdo Schindling Peripheralpumpe
DE19719609A1 (de) * 1997-05-09 1998-11-12 Bosch Gmbh Robert Aggregat zum Fördern von Kraftstoff aus einem Vorratsbehälter zur Brennkraftmaschine eines Kraftfahrzeuges
DE10019913A1 (de) * 2000-04-20 2001-10-25 Mannesmann Vdo Ag Förderpumpe
US6547515B2 (en) * 2001-01-09 2003-04-15 Walbro Corporation Fuel pump with vapor vent
US6669437B2 (en) * 2001-10-04 2003-12-30 Visteon Global Technologies, Inc. Regenerative fuel pump with leakage prevent grooves
CN1356477A (zh) * 2001-12-27 2002-07-03 万进光 一种电动燃油泵的端面流通式叶轮
CN2713185Y (zh) * 2004-07-22 2005-07-27 薛肇江 电动燃油叶轮泵叶轮

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4678395A (en) * 1984-07-23 1987-07-07 Friedrich Schweinfurter Regenerative pump with force equalization
US5310308A (en) * 1993-10-04 1994-05-10 Ford Motor Company Automotive fuel pump housing with rotary pumping element
DE19634734A1 (de) * 1996-08-28 1998-03-05 Bosch Gmbh Robert Strömungspumpe
US20020021975A1 (en) * 2000-06-21 2002-02-21 Mannesmann Vdo Side-channel pump
DE10246694A1 (de) * 2002-10-07 2004-04-15 Siemens Ag Seitenkanalpumpe

Also Published As

Publication number Publication date
CN101548109B (zh) 2012-06-06
JP2010509543A (ja) 2010-03-25
JP4852153B2 (ja) 2012-01-11
EP2054627A1 (fr) 2009-05-06
CN101548109A (zh) 2009-09-30
DE102006053933A1 (de) 2008-05-21
KR20090082921A (ko) 2009-07-31
US20100021282A1 (en) 2010-01-28

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