US20100189543A1 - Fuel Pump - Google Patents

Fuel Pump Download PDF

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Publication number
US20100189543A1
US20100189543A1 US12/663,636 US66363608A US2010189543A1 US 20100189543 A1 US20100189543 A1 US 20100189543A1 US 66363608 A US66363608 A US 66363608A US 2010189543 A1 US2010189543 A1 US 2010189543A1
Authority
US
United States
Prior art keywords
stage
rotor
fuel pump
peripheral
outlet
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.)
Abandoned
Application number
US12/663,636
Other languages
English (en)
Inventor
Johannes Deichmann
Matthias Fischer
Bernd Jaeger
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
Assigned to CONTINENTAL AUTOMOTIVE GMBH reassignment CONTINENTAL AUTOMOTIVE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DEICHMANN, JOHANNES, FISCHER, MATTHIAS, JAEGER, BERND
Publication of US20100189543A1 publication Critical patent/US20100189543A1/en
Abandoned 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
    • F04D13/00—Pumping installations or systems
    • F04D13/12—Combinations of two or more 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
    • F04D29/007—Details, component parts, or accessories especially adapted for liquid 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
    • F04D29/188—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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/406—Casings; Connections of working fluid especially adapted for liquid 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
    • F04D5/002—Regenerative pumps
    • F04D5/003—Regenerative pumps of multistage type
    • F04D5/005—Regenerative pumps of multistage type the stages being radially offset
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2210/00—Working fluids
    • F05D2210/10—Kind or type
    • F05D2210/11—Kind or type liquid, i.e. incompressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/60—Fluid transfer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps

Definitions

  • the invention relates to a fuel pump for delivering fuel in a motor vehicle having a rotor that is rotatable between an inlet-side casing part and an outlet-side casing part and with a side channel stage arranged in the faces, at a distance from the outer rim, the side channel stage having delivery chambers that extend from an inlet to an outlet and which have rings, arranged in the rotor, of guide vanes that delimit vane chambers, and mutually opposite vane chambers of the side channel stage being connected to one another.
  • Fuel pumps of this kind are used in motor vehicles and are known in practice.
  • the flow through the side channel stage of the known fuel pump is axial and said stage delivers fuel from the fuel tank to an internal combustion engine of the motor vehicle.
  • the side channel stage, with the vane chambers at a distance from the outer rim of the rotor, has a high efficiency but is susceptible to the ingress of dirt particles into a gap between the rotor and casing parts, especially radially to the outside of the ring of vane chambers. These dirt particles lead to wear and hence to an enlargement of the gap between the rotor and the casing part, resulting in a loss of efficiency.
  • fuel pumps that have a peripheral stage and vane chambers arranged in the radially outer rim have been disclosed. Such fuel pumps are not susceptible to soiling but have only a low efficiency.
  • An object of one embodiment of the invention is to develop a fuel pump of the type described at the outset such that wear is minimized and the pump has a high efficiency.
  • this problem is solved by at least one ring of guide vanes for at least one delivery chamber of a peripheral stage, said vanes delimiting vane chambers, the at least one ring of guide vanes being arranged on the outer rim of the rotor.
  • the delivery chamber of the peripheral stage has a significantly smaller cross-section than the delivery chambers of the side channel stage, and respective inlets and outlets of the side channel stage and the peripheral stage are connected to one another.
  • the two stages are connected in parallel with one another.
  • the majority of the delivery output of the fuel pump according to the invention is produced with high efficiency by the side channel stage.
  • the fuel pump according to the invention is particularly efficient.
  • this stage makes only an a slight contribution to the delivery output and serves principally to build up a counterpressure to the side channel stage in the fuel pump and to carry away dirt particles.
  • the counterpressure to the side channel stage has the effect that the ingress of dirt particles into the gap between the rotor and the casing part is kept particularly small.
  • the wear of the rotor and of the casing parts in the region in which they adjoin the vane chambers of the side channel stage is thereby kept particularly low.
  • avoiding an accumulation of dirt in the radially outer region of the rotor is a particularly simple matter if, compared to the side channel stage, the peripheral stage is designed to produce the same pressure across the periphery of the rotor with a smaller volume flow as the side channel stage.
  • a particularly compact configuration by virtue of axial flow through the fuel pump according to the invention can be achieved in a simple manner if the inlet of the side channel stage is arranged in the inlet-side casing part and leads to a first face of the rotor, and if the outlet of the side channel stage is arranged in the outlet-side casing part and leads away from a second face.
  • the peripheral stage could, for example, be supplied with fuel via a slot leading in the inlet-side casing part to the inlet of the side channel stage.
  • this leads to multiple deflection of the flow of fuel.
  • a further contribution to reducing turbulence in the flow of fuel is made if the inlet of the peripheral stage is arranged parallel to the inlet of the side channel stage and leads to the first face of the rotor.
  • the outlay on construction required to produce an intended pressure in the peripheral stage can be kept particularly low if a spacer ring, which holds the casing parts at a distance from one another, has a guide element for producing an intended pressure gradient across the periphery of the rotor.
  • an intended pressure profile across the periphery of the rotor can be established in a simple manner if the spacer ring has respective recesses at the inlet and at the outlet of the peripheral stage and between the two recesses on both faces of the rotor the peripheral stage has delivery chambers that are at least partially separated from one another.
  • the separation between the two delivery chambers of the peripheral stage is preferably brought about by the guide element.
  • a contribution to further simplifying the adjustability of the pressure profile across the periphery of the rotor is made if the spacing of an edge of the spacer ring, said edge lying opposite the encircling rim of the rotor, is greater near the inlet of the peripheral stage than close to the outlet.
  • a contribution to simplifying the assembly of the fuel pump according to the invention is made if a shell surrounding the casing parts and the spacer ring delimits the recess in the spacer ring radially towards the outside at the outlet.
  • a contribution to further reducing turbulence in the flow of the peripheral stage is made if the outlet-side casing part has a guiding edge sloping in the direction of flow at the outlet of the peripheral stage.
  • FIG. 1 is a partial section through a fuel pump according to one embodiment of the invention.
  • FIG. 2 is an exploded view of a pump stage of the fuel pump shown in FIG. 1 .
  • FIG. 1 shows a fuel pump with a pump stage 2 driven by an electric motor 1 .
  • the pump stage 2 has a rotor 4 arranged in a torsionally rigid manner on a shaft 3 of the electric motor 1 .
  • the rotor 4 is arranged rotatably between two mutually opposite casing parts 5 , 6 .
  • the casing parts 5 , 6 are held at a distance from one another by a spacer ring 7 .
  • a shell 8 of the fuel pump preloads the casing parts 5 , 6 against the spacer ring 7 .
  • the pump stage 2 has a side channel stage 9 and a peripheral stage 10 .
  • the side channel stage 9 has two mutually opposite rings of guide vanes 12 delimiting vane chambers, said rings being arranged in the rotor 4 at a distance from the radially outer rim.
  • the peripheral stage 10 has two rings of guide vanes 14 delimiting vane chambers 13 , said rings being arranged in the radially outer rim of the rotor 4 .
  • each of the vane chambers 11 , 13 forms a delivery chamber 17 , 18 .
  • Each of the delivery chambers 17 , 18 extends from an inlet 19 to an outlet 20 of the pump stage 2 .
  • the inlet 19 is arranged in one of the casing parts 5 , while the outlet 20 is arranged in the other casing part 6 .
  • the inlet 19 and the outlet 20 are shown rotated into the plane of the drawing.
  • the delivery chambers 18 of the peripheral stage 10 have a significantly smaller cross section than the delivery chambers 17 of the side channel stage 9 . As a result, most of the fuel is delivered via the side channel stage 9 .
  • FIG. 1 furthermore shows that the outlet-side casing part 6 has a guiding edge 22 sloping in the direction of flow at the outlet 20 of the peripheral stage 10 .
  • the side channel stage 9 axial guidance for the flow of fuel through the rotor 4 is provided by an overlap between the mutually opposite delivery chambers 17 in the rotor 4 .
  • the flow is guided by a guide element 23 arranged on the spacer ring 7 .
  • the pressure gradient described in the peripheral stage 10 can be set precisely by the shape and dimensions of the guide element 23 , these being illustrated in FIG. 2 in an exploded view of the pump stage 2 .
  • the spacer ring 7 has respective recesses 24 , 25 to guide the flow of fuel.
  • the spacer ring 7 with two recesses 24 , 25 separates the delivery chambers 18 of the peripheral stage 10 which are illustrated in FIG. 1 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Rotary Pumps (AREA)
US12/663,636 2007-06-08 2008-05-15 Fuel Pump Abandoned US20100189543A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102007026533.8 2007-06-08
DE102007026533A DE102007026533A1 (de) 2007-06-08 2007-06-08 Kraftstoffpumpe
PCT/EP2008/055987 WO2008148627A1 (de) 2007-06-08 2008-05-15 Kraftstoffpumpe

Publications (1)

Publication Number Publication Date
US20100189543A1 true US20100189543A1 (en) 2010-07-29

Family

ID=39816656

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/663,636 Abandoned US20100189543A1 (en) 2007-06-08 2008-05-15 Fuel Pump

Country Status (9)

Country Link
US (1) US20100189543A1 (pt)
EP (1) EP2057377A1 (pt)
JP (1) JP2010529349A (pt)
KR (1) KR20100025543A (pt)
CN (1) CN101680451A (pt)
BR (1) BRPI0812462A2 (pt)
DE (1) DE102007026533A1 (pt)
MX (1) MX2009012911A (pt)
WO (1) WO2008148627A1 (pt)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120251311A1 (en) * 2009-12-16 2012-10-04 Matthias Fischer Fuel pump
US20150125324A1 (en) * 2011-12-13 2015-05-07 Eagleburgmann Germany Gmbh & Co. Kg Rotary compressor

Citations (12)

* 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
US4923365A (en) * 1987-03-14 1990-05-08 Robert Bosch Gmbh Impeller wheel for conveying a medium
US5449269A (en) * 1993-06-01 1995-09-12 Robert Bosch Gmbh Aggregate for feeding fuel from a supply tank to internal combustion engine of motor vehicle
US5680700A (en) * 1995-04-07 1997-10-28 Walbro Corporation Regenerative fuel pump
US5702229A (en) * 1996-10-08 1997-12-30 Walbro Corporation Regenerative fuel pump
US6152686A (en) * 1996-06-05 2000-11-28 Robert Bosch Gmbh Equipment for pumping fuel from a storage tank to the internal-combustion engine of a motor vehicle
US6227819B1 (en) * 1999-03-29 2001-05-08 Walbro Corporation Fuel pumping assembly
US20010026757A1 (en) * 2000-03-21 2001-10-04 Mannesmann Vdo Ag Feed pump
US6425733B1 (en) * 2000-09-11 2002-07-30 Walbro Corporation Turbine fuel pump
US6443693B1 (en) * 1999-11-23 2002-09-03 Mannesman Vdo Ag Fuel Pump
US20030231953A1 (en) * 2002-06-18 2003-12-18 Ross Joseph M. Single stage, dual channel turbine fuel pump
US20050074345A1 (en) * 2003-09-09 2005-04-07 Johannes Deichmann Fuel pump for a fuel tank

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3303460A1 (de) * 1983-02-02 1984-08-02 Friedrich 8541 Röttenbach Schweinfurter Selbstansaugende seitenkanalpumpe
DE69621868T2 (de) * 1995-03-31 2003-01-30 Bitron S.P.A., Nichelino Seitenkanalbrennstoffpumpe für Kraftfahrzeug
DE10054590B4 (de) * 1999-11-23 2006-03-16 Siemens Ag Kraftstoffpumpe
JP2002327694A (ja) * 2001-04-27 2002-11-15 Aisan Ind Co Ltd ウエスコ式ポンプ

Patent Citations (14)

* 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
US4923365A (en) * 1987-03-14 1990-05-08 Robert Bosch Gmbh Impeller wheel for conveying a medium
US5449269A (en) * 1993-06-01 1995-09-12 Robert Bosch Gmbh Aggregate for feeding fuel from a supply tank to internal combustion engine of motor vehicle
US5680700A (en) * 1995-04-07 1997-10-28 Walbro Corporation Regenerative fuel pump
US6152686A (en) * 1996-06-05 2000-11-28 Robert Bosch Gmbh Equipment for pumping fuel from a storage tank to the internal-combustion engine of a motor vehicle
US5702229A (en) * 1996-10-08 1997-12-30 Walbro Corporation Regenerative fuel pump
US6227819B1 (en) * 1999-03-29 2001-05-08 Walbro Corporation Fuel pumping assembly
US6443693B1 (en) * 1999-11-23 2002-09-03 Mannesman Vdo Ag Fuel Pump
US20010026757A1 (en) * 2000-03-21 2001-10-04 Mannesmann Vdo Ag Feed pump
US6425733B1 (en) * 2000-09-11 2002-07-30 Walbro Corporation Turbine fuel pump
US20030231953A1 (en) * 2002-06-18 2003-12-18 Ross Joseph M. Single stage, dual channel turbine fuel pump
US6932562B2 (en) * 2002-06-18 2005-08-23 Ti Group Automotive Systems, L.L.C. Single stage, dual channel turbine fuel pump
US20050074345A1 (en) * 2003-09-09 2005-04-07 Johannes Deichmann Fuel pump for a fuel tank
US7473069B2 (en) * 2003-09-09 2009-01-06 Siemens Aktiengesellschaft Fuel pump for a fuel tank

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120251311A1 (en) * 2009-12-16 2012-10-04 Matthias Fischer Fuel pump
US20150125324A1 (en) * 2011-12-13 2015-05-07 Eagleburgmann Germany Gmbh & Co. Kg Rotary compressor

Also Published As

Publication number Publication date
JP2010529349A (ja) 2010-08-26
WO2008148627A1 (de) 2008-12-11
KR20100025543A (ko) 2010-03-09
BRPI0812462A2 (pt) 2014-12-02
CN101680451A (zh) 2010-03-24
MX2009012911A (es) 2010-01-14
EP2057377A1 (de) 2009-05-13
DE102007026533A1 (de) 2008-12-11

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Legal Events

Date Code Title Description
AS Assignment

Owner name: CONTINENTAL AUTOMOTIVE GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DEICHMANN, JOHANNES;FISCHER, MATTHIAS;JAEGER, BERND;SIGNING DATES FROM 20091111 TO 20100214;REEL/FRAME:023977/0819

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION