EP1039140B1 - Förderpumpe - Google Patents

Förderpumpe Download PDF

Info

Publication number
EP1039140B1
EP1039140B1 EP00103931A EP00103931A EP1039140B1 EP 1039140 B1 EP1039140 B1 EP 1039140B1 EP 00103931 A EP00103931 A EP 00103931A EP 00103931 A EP00103931 A EP 00103931A EP 1039140 B1 EP1039140 B1 EP 1039140B1
Authority
EP
European Patent Office
Prior art keywords
impeller
blade
angle
feed pump
chambers
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
EP00103931A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1039140A3 (de
EP1039140A2 (de
Inventor
Peter Marx
Christoph Schmidt
Dirk Endler
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7901580&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1039140(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1039140A2 publication Critical patent/EP1039140A2/de
Publication of EP1039140A3 publication Critical patent/EP1039140A3/de
Application granted granted Critical
Publication of EP1039140B1 publication Critical patent/EP1039140B1/de
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
    • 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
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/24—Vanes
    • F04D29/242—Geometry, shape
    • F04D29/245—Geometry, shape for special effects

Definitions

  • the invention relates to a feed pump with a driven, in one Pump housing rotating impeller, with at least one on one end of the Impeller arranged wreath of vane chambers, one of the wreath of Vane chambers opposite and in the wall of the pump housing arranged delivery channel and with the blade chambers laterally delimiting Blades.
  • Such feed pumps are known as peripheral or side channel pumps are widely used in fuel delivery units of motor vehicles.
  • An in the pump housing arranged electric motor drives the in the Pump chamber located impeller.
  • Through the rotation of the impeller is through a suction opening arranged in the pump chamber
  • Fuel drawn in and by means of the vane chambers and the delivery channel conveyed to an outlet opening.
  • the liquid to be pumped passes through centrifugal forces conditionally in the radially inner region of the blade chambers in and in radially outer area of the blade combs again. Because the scoop chambers and the delivery channel is at least approximately closed, forms in the liquid a circulation flow.
  • the blades opposite To improve the circulation flow between the delivery channel and the Blade chambers are also known, the blades opposite To arrange vane chambers to each other in a V-shape, so that the blades in Circulation direction are open to the front. This arrangement of the blades enables better energy transfer to the flow. At the same time Turbulence occurring on the back of the blades is reduced. So own such impellers an improved efficiency compared to impellers whose Blades are arranged perpendicular to the end face.
  • impellers of feed pumps are known, the blades of which in radially outer area rotated very much with respect to the radially inner area are.
  • the flow behavior in the blade chambers due to the large angular difference between the inner and outer blade areas are adversely affected (See, for example, US-A-5 807 068).
  • the invention has for its object a feed pump with an improved To create flow behavior.
  • the impeller of the feed pump have a long service life and be inexpensive to manufacture.
  • ⁇ ( r ) is the angle between the blade with respect to the axis of rotation at a distance r from the center of the impeller to any point on the blade.
  • the angle ⁇ ( r a ) is a predetermined angle between the blade with respect to the axis of rotation at a distance r a from the center of the impeller to a predetermined point on the blade.
  • the advantage of the feed pump is that the formation of the blades is too an additional acceleration of the liquid in the circumferential direction and the Liquid emerges from the vane chambers at a different angle, causing an improvement in efficiency is achieved.
  • the proportionality of the change in angle ensures that in the radially inner region of the delivery channel Avoid formation of a too large speed vector in the tangential direction becomes. This would have an excessive acceleration of the liquid in the circumferential direction when entering the vane chambers, which in turn reduce efficiency Backflows in the blade chambers would lead.
  • Another advantage is that the life of the impeller is increased. The reason is mainly that the design of the blades is not more detached from the given geometries and flow conditions. Furthermore, such impellers can be injection molded inexpensively produce.
  • the radially inner edge, the center or the radially outer edge of the rotor blade (3) is specified as the predetermined point for the distance r a .
  • Impellers which have an angle ⁇ ( r a ) of between 30 ° and 40 ° on their radially outer edge with respect to the axis of rotation are particularly advantageous.
  • the impeller 1 shown in FIG. 1 is a peripheral wheel of a fuel pump.
  • vane chambers 2 are arranged on both sides over the circumference.
  • the individual blade chambers 2 are delimited by moving blades 3.
  • Opposing blade chambers 2 are separated from one another by a web 4.
  • a recess 5 serves to receive a shaft, not shown, of an electric motor for driving the impeller 1.
  • the radii r 1 , r 2 , r 3 give the distance of the blades 3 ', 3 ", 3""from the axis of rotation 6 of the impeller 1 up to section II-II.
  • Figure 2 shows schematically the impeller 1 from Fig.
  • the blades 3 ', 3 ", 3''' are cut at a distance r 1 , r 2 , r 3 from the axis of rotation 6.
  • the distances r 1 and r 3 are the same, so that the blades 3 ', 3'''have the same distance s from the axis of rotation 6 in the sectional plane.
  • the rotor blades 3', 3 ", 3 ''' are arranged in a V-shape to the rotor blades opposite on the other side of the impeller 1.
  • the angle of the blades 3 ', 3 ", 3''' with respect to the axis of rotation 6 behaves according to the relationship Accordingly, the blade 3 'has an angle ⁇ 1 at the location of the radius r 1 , which is equal to the angle ⁇ 3 due to the symmetry to the blade 3'''.
  • the blade 3 ′′ has the angle ⁇ 2 at the point r 2.
  • the angle ⁇ 2 is smaller than the two angles ⁇ 1 and ⁇ 3.
  • the angle ⁇ (r) is measured on a circumferential surface at a distance r.
  • the angular profile ⁇ of a blade 3 is shown.
  • the radius r is plotted on the abscissa over the radial extent of the vane chamber 2.
  • the blade 3 has an angle of 32 ° on its radially inner edge.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP00103931A 1999-03-19 2000-02-25 Förderpumpe Expired - Lifetime EP1039140B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19912314 1999-03-19
DE19912314A DE19912314C2 (de) 1999-03-19 1999-03-19 Förderpumpe

Publications (3)

Publication Number Publication Date
EP1039140A2 EP1039140A2 (de) 2000-09-27
EP1039140A3 EP1039140A3 (de) 2000-11-08
EP1039140B1 true EP1039140B1 (de) 2002-06-05

Family

ID=7901580

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00103931A Expired - Lifetime EP1039140B1 (de) 1999-03-19 2000-02-25 Förderpumpe

Country Status (6)

Country Link
US (1) US6302639B1 (es)
EP (1) EP1039140B1 (es)
KR (1) KR100718751B1 (es)
BR (1) BR0001376A (es)
DE (2) DE19912314C2 (es)
ES (1) ES2177487T3 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10013908A1 (de) * 2000-03-21 2001-09-27 Mannesmann Vdo Ag Förderpumpe
US6533538B2 (en) * 2000-12-07 2003-03-18 Delphi Technologies, Inc. Impeller for fuel pump
US7037066B2 (en) 2002-06-18 2006-05-02 Ti Group Automotive Systems, L.L.C. Turbine fuel pump impeller
US6932562B2 (en) * 2002-06-18 2005-08-23 Ti Group Automotive Systems, L.L.C. Single stage, dual channel turbine fuel pump
US9249806B2 (en) 2011-02-04 2016-02-02 Ti Group Automotive Systems, L.L.C. Impeller and fluid pump

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2636680B1 (fr) * 1988-09-22 1994-03-25 Moret Ets F Roue de pompe vortex
DE3925396A1 (de) * 1989-08-01 1991-02-07 Swf Auto Electric Gmbh Kraftstoffoerderpumpe
DE19504079B4 (de) * 1995-02-08 2004-11-04 Robert Bosch Gmbh Strömungspumpe zum Fördern von Kraftstoff aus einem Vorratsbehälter zur Brennkraftmaschine eines Kraftfahrzeugs
US5762469A (en) * 1996-10-16 1998-06-09 Ford Motor Company Impeller for a regenerative turbine fuel pump
DE19826902C2 (de) * 1998-06-17 2000-05-04 Mannesmann Vdo Ag Förderpumpe

Also Published As

Publication number Publication date
DE50000194D1 (de) 2002-07-11
BR0001376A (pt) 2000-10-10
US6302639B1 (en) 2001-10-16
KR100718751B1 (ko) 2007-05-15
ES2177487T3 (es) 2002-12-16
DE19912314C2 (de) 2002-10-10
DE19912314A1 (de) 2000-09-28
EP1039140A3 (de) 2000-11-08
KR20000062957A (ko) 2000-10-25
EP1039140A2 (de) 2000-09-27

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