EP1423613B1 - Förderpumpe - Google Patents

Förderpumpe 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)
English (en)
French (fr)
Other versions
EP1423613A1 (de
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/de
Application granted granted Critical
Publication of EP1423613B1 publication Critical patent/EP1423613B1/de
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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Rotary Pumps (AREA)
EP02772031A 2001-09-06 2002-08-29 Förderpumpe Expired - Fee Related EP1423613B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10143809 2001-09-06
DE10143809A DE10143809C1 (de) 2001-09-06 2001-09-06 Förderpumpe
PCT/DE2002/003170 WO2003021109A1 (de) 2001-09-06 2002-08-29 Förderpumpe

Publications (2)

Publication Number Publication Date
EP1423613A1 EP1423613A1 (de) 2004-06-02
EP1423613B1 true EP1423613B1 (de) 2010-08-11

Family

ID=7697986

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02772031A Expired - Fee Related EP1423613B1 (de) 2001-09-06 2002-08-29 Förderpumpe

Country Status (8)

Country Link
US (1) US7497656B2 (zh)
EP (1) EP1423613B1 (zh)
JP (1) JP2005501198A (zh)
KR (1) KR20040041599A (zh)
CN (1) CN1270095C (zh)
BR (1) BR0212330B1 (zh)
DE (2) DE10143809C1 (zh)
WO (1) WO2003021109A1 (zh)

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 (de) * 2005-09-05 2015-07-23 DüRR DENTAL AG Saugmaschine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3128372A1 (de) 1981-07-17 1983-02-03 Friedrich 8541 Röttenbach Schweinfurter "peripheralkanalpumpe"
JPS59141795A (ja) * 1983-01-31 1984-08-14 Nippon Denso Co Ltd 再生ポンプ
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 (ja) * 1995-09-12 1997-03-25 Unisia Jecs Corp タービンポンプ
DE19943261A1 (de) * 1999-09-10 2001-03-15 Mannesmann Vdo Ag Förderpumpe
ES2194667T3 (es) * 1999-11-23 2003-12-01 Siemens Ag Bomba para carburante.

Also Published As

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

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