EP1451473B1 - Roue mobile pour pompe regenerative - Google Patents

Roue mobile pour pompe regenerative Download PDF

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Publication number
EP1451473B1
EP1451473B1 EP02781137A EP02781137A EP1451473B1 EP 1451473 B1 EP1451473 B1 EP 1451473B1 EP 02781137 A EP02781137 A EP 02781137A EP 02781137 A EP02781137 A EP 02781137A EP 1451473 B1 EP1451473 B1 EP 1451473B1
Authority
EP
European Patent Office
Prior art keywords
impeller
webs
fuel
rotation
pump
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
EP02781137A
Other languages
German (de)
English (en)
Other versions
EP1451473A1 (fr
Inventor
Bernd Jäger
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 EP1451473A1 publication Critical patent/EP1451473A1/fr
Application granted granted Critical
Publication of EP1451473B1 publication Critical patent/EP1451473B1/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
    • F04D29/188—Rotors specially for regenerative pumps

Definitions

  • the invention relates to an impeller for a designed as a side channel pump, in particular for the promotion of fuel provided in a fuel tank pump, which has on its front sides each spaced from its radially outer edge rim vane chambers limiting vanes and is provided for arrangement between housing parts of the feed pump on the radially outer edge of a flow resisting a profiling is arranged on the radially outer edge of a flow resisting profiling is arranged, wherein the profiling has radially projecting, circumferentially spaced webs.
  • Delivery pumps for conveying fuel from fuel tanks are often designed as a side channel pump and known from practice.
  • the delivery of the fuel takes place from an inlet channel via the rings of the blade chambers and arranged in the housing parts partially annular channels to an outlet channel.
  • blade chambers arises in the promotion of the fuel on one end face, a higher pressure than on the other end face. This pressure difference is especially high in axially flowed side channel pumps, in which the vane chambers are interconnected, particularly high.
  • the invention is based on the problem to design an impeller of the type mentioned so that flow losses and wear on the edge of the impeller are kept particularly low and has a low noise.
  • This design prevents the overflow of fuel from one end face to the other end face. This initially leads to a significant reduction in the flow over the edge of the impeller according to the invention and thus to low flow losses of the feed pump. In addition, noises of the feed pump provided with the impeller according to the invention can be largely avoided. Furthermore, an entry of dirt particles in the gap between the impeller and the housing parts is greatly reduced by reducing the flow over the edge of the impeller according to the invention. This leads to a particularly low wear of the impeller in its radially outer region. Flow losses in the feed pump are therefore due to the inventive Design of the impeller permanently kept low. Another advantage of the invention is that flow losses in a known feed pump can be reduced by simply replacing the impeller.
  • the profiling can completely compensate for the pressure difference at the end faces of the impeller, according to another advantageous embodiment of the invention, when the webs are inclined relative to the axis of rotation of the impeller.
  • the webs are designed like guide vanes of a peripheral pump, as a result of which an overflow of the fuel over the edge can be almost completely prevented.
  • the profiling is able to produce at the front side of the impeller with a high pressure an equally high back pressure when viewed in the direction of rotation of the webs from the intended pressure side to the intended suction side are inclined rising.
  • a promotion of fuel through the webs can be reliably avoided according to another advantageous embodiment of the invention, when an inclination angle ⁇ of the webs to the vertical of the end faces is about 1 ° to 50 °.
  • FIG. 1 shows a driven by an electric motor 1 feed pump 2 for conveying fuel in a motor vehicle.
  • the feed pump 2 has an impeller 4 mounted on a shaft 3 of the electric motor 1 and two casing parts 6, 7 held at a distance from one another by means of a spacer ring 5.
  • the feed pump 2 delivers fuel from an inlet channel 8 to an outlet channel 9 arranged on the side of the electric motor 1
  • In the end faces of the impeller 4 are each a wreath blade chambers 10, 11 are arranged.
  • Opposite blade chambers 10, 11 are interconnected within the impeller 4.
  • the housing parts 6, 7 have in the region of the blade chambers 10, 11 extending from the inlet channel 8 to the outlet channel 9 partially annular channels 12, 13. Further shows FIG. 1 in that a profiling 14 is arranged on the radially outer edge of the impeller 4.
  • FIG. 2 shows the impeller 4 in the in FIG. 1 described mounting position in a view of the edge.
  • the intended direction of rotation is marked with an arrow.
  • the webs 15 are arranged at an angle ⁇ to the vertical of the impeller 4 inclined.
  • the angle ⁇ is approximately 40 ° in the illustrated embodiment.
  • the webs 15 are seen in the direction of rotation of the near the outlet channel 9 of the feed pump 2 from FIG. 1 to be arranged pressure side inclined to the arrangement near the intake port 8 suction side rising. Furthermore, the webs 15 are arranged unevenly distributed over the circumference of the impeller 4.

Landscapes

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

Claims (5)

  1. Rotor (4) pour pompe d'alimentation conçue comme pompe régénérative, notamment pour le transfert de carburant dans un réservoir à carburant, ledit rotor comportant, sur chacune de ses faces frontales, à une certaine distance de sa bordure extérieure radiale, une couronne d'aubes directrices limitant des chambres à aubes (10, 11), ledit rotor étant prévu pour être mis en place entre des parties de boîtier (6, 7), un profilage (14) opposant une résistance à un flux étant disposé sur la bordure extérieure radiale dudit rotor, le profilage comportant des ailettes (15) faisant saillie dans le sens radial et écartées l'une de l'autre dans le sens périphérique, caractérisé par le fait que les ailettes (15) sont réparties d'une façon irrégulière sur la périphérie.
  2. Rotor selon la revendication 1, caractérisé par le fait que les ailettes (15) sont disposées essentiellement en parallèle les unes par rapport aux autres.
  3. Rotor selon au moins l'une des revendications précédentes, caractérisé par le fait que les ailettes (15) sont inclinées par rapport à l'axe de rotation du rotor (4).
  4. Rotor selon au moins l'une des revendications précédentes, caractérisé par le fait que les ailettes (15) sont, vues dans le sens de rotation, inclinées en montant à partir du côté pression prévu vers le côté aspiration prévu.
  5. Rotor selon au moins l'une des revendications précédentes, caractérisé par le fait que l'angle d'inclinaison α des ailettes (15) par rapport à la normale des faces frontales a une valeur d'environ 1° à 50°.
EP02781137A 2001-12-07 2002-10-14 Roue mobile pour pompe regenerative Expired - Lifetime EP1451473B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10160199 2001-12-07
DE10160199A DE10160199B4 (de) 2001-12-07 2001-12-07 Laufrad
PCT/DE2002/003898 WO2003050419A1 (fr) 2001-12-07 2002-10-14 Roue mobile pour pompe regenerative

Publications (2)

Publication Number Publication Date
EP1451473A1 EP1451473A1 (fr) 2004-09-01
EP1451473B1 true EP1451473B1 (fr) 2009-12-09

Family

ID=7708406

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02781137A Expired - Lifetime EP1451473B1 (fr) 2001-12-07 2002-10-14 Roue mobile pour pompe regenerative

Country Status (4)

Country Link
US (1) US7029230B2 (fr)
EP (1) EP1451473B1 (fr)
DE (2) DE10160199B4 (fr)
WO (1) WO2003050419A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE729453C (de) * 1941-11-16 1942-12-16 App U Maschinenfabrik Karl Dic Laufrad fuer Umlaufpumpen mit seitlichem Leitkanal
JPS57157055A (en) * 1981-03-20 1982-09-28 Nippon Denso Co Ltd Electric fuel pump for vehicle
DE3128372A1 (de) * 1981-07-17 1983-02-03 Friedrich 8541 Röttenbach Schweinfurter "peripheralkanalpumpe"
DE4243225A1 (de) * 1992-12-19 1994-06-23 Pierburg Gmbh Brennstoffpumpe
JP3228446B2 (ja) * 1993-03-30 2001-11-12 株式会社デンソー ウエスコポンプ
DE19634734A1 (de) * 1996-08-28 1998-03-05 Bosch Gmbh Robert Strömungspumpe
US6604905B1 (en) * 2000-06-20 2003-08-12 Visteon Global Technologies, Inc. Fuel pumps with reduced contamination effects

Also Published As

Publication number Publication date
EP1451473A1 (fr) 2004-09-01
DE50214082D1 (de) 2010-01-21
US7029230B2 (en) 2006-04-18
WO2003050419A1 (fr) 2003-06-19
US20050013712A1 (en) 2005-01-20
DE10160199A1 (de) 2003-06-18
DE10160199B4 (de) 2005-08-25

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