EP1664521A1 - Pompe a carburant - Google Patents

Pompe a carburant

Info

Publication number
EP1664521A1
EP1664521A1 EP04766393A EP04766393A EP1664521A1 EP 1664521 A1 EP1664521 A1 EP 1664521A1 EP 04766393 A EP04766393 A EP 04766393A EP 04766393 A EP04766393 A EP 04766393A EP 1664521 A1 EP1664521 A1 EP 1664521A1
Authority
EP
European Patent Office
Prior art keywords
fuel pump
housing part
edge
pump according
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.)
Granted
Application number
EP04766393A
Other languages
German (de)
English (en)
Other versions
EP1664521B1 (fr
Inventor
Johannes Deichmann
Eberhard Geissel
Sven Kretzschmar
Zlatko Penzar
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
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
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1664521A1 publication Critical patent/EP1664521A1/fr
Application granted granted Critical
Publication of EP1664521B1 publication Critical patent/EP1664521B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/048—Arrangements for driving regenerative pumps, i.e. side-channel 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

Definitions

  • the invention relates to a fuel pump with a pump stage driven by an electric motor, with a jacket enclosing the electric motor and the pump stage with an impeller rotatably arranged between two housing parts of the pump stage, with an inlet duct arranged in one of the housing parts and one arranged in the opposite housing part Outlet channel, with vanes delimiting vane chambers in the impeller and with ring-shaped channels arranged in the housing parts and opposite the rings of the guide vanes, the part-ring channel of the inlet-side housing part being connected to the inlet channel and the part-ring channel of the outlet-side housing part being connected to the outlet channel.
  • Such fuel pumps are frequently used to deliver fuel from a fuel tank to an internal combustion engine in today's motor vehicles and are known from practice.
  • the housing parts of the known pump stages are usually made of metal or sintered ceramic in order to achieve the intended stability.
  • forces are introduced into the pump stage by holding forces of the jacket or by temperature fluctuations, which lead to bending of the housing parts.
  • a yoke body is supported over the entire circumference on one of the housing parts of the pump stage and is radially clamped to the housing part. Therefore, axial and radial forces are introduced into the housing part, which also leads to bending of the housing part.
  • bending the housing parts leads to a change in an axial gap between the housing parts and the impeller.
  • a pressure generated by the pump stage in the electric motor leads to a reduction of the axial gap between the housing part closest to the electric motor and the impeller.
  • a disadvantage of the known fuel pump is that it is very expensive to manufacture due to the production of the housing parts of the pump stage from metal or sintered ceramic.
  • the invention is based on the problem of designing a fuel pump of the type mentioned at the outset in such a way that it can be produced particularly cost-effectively and bending of the housing parts of the pump stage is largely avoided.
  • the housing parts have a disk element with one of the part-ring-shaped channels and that they have connection elements with force introduction surfaces on the outer circumference of the disk element for connection to adjoining them.
  • housing parts can be manufactured from particularly inexpensive materials.
  • connection elements have an edge arranged on the outer circumference of the disk element.
  • bending of the inlet-side housing part by radial forces introduced into the pump stage by the jacket can be easily avoided if the edge is arranged halfway up the disk element of the inlet-side housing part, which has a substantially uniform thickness.
  • a bending of the exhaust housing part as a result of adjacent axial forces components can be in accordance with an arrival their advantageous development of the invention is simple ver ⁇ avoid when the edge perpendicular of the exhaust housing part is arranged upright on the outer circumference of the disc member and having a radially outwardly projecting collar and if the force introduction points for axially introduced forces are arranged on the collar.
  • connection of the regions of the outlet-side housing part facing the impeller with the force introduction points can only transmit very small forces if the outlet-side housing part has a groove between the edge and the radially inner region of the disk element.
  • the outlet-side housing part has according to another advantageous development of the invention a particularly high stability when radially inner supporting elements un groove ⁇ ter réelle and connect the disk element to the rim.
  • the edge of the outlet-side housing part can bend when axial forces are introduced without introducing forces into the region of the disk element opposite the impeller if the edge is spaced apart from the radially outer boundary of the outlet-side housing part.
  • the edge can deform almost independently of the disk element if the force introduction points for axially introduced forces are arranged on the radially outer support elements. This contributes to a further reduction in the bending moments introduced into the disk element.
  • An introduction of radial forces in the outlet-side casing part Ge ⁇ the entire circumference can be according to another advantageous development of the invention easily avoided if individual force introduction points are arranged for radial forces introduced on the edge.
  • thermal deformation of the disk element of the outlet-side housing part by waste heat from the electric motor can be easily avoided if the outlet-side housing part has an annular recess between the part-annular channel and a bearing of the shaft.
  • the fuel pump according to the invention can be manufactured particularly inexpensively if at least one of the housing parts is made of plastic.
  • FIG. 1 shows a longitudinal section through a fuel pump according to the invention
  • FIG. 2 shows a top view of an outlet-side housing part of the fuel pump from FIG. 1.
  • the pump stage 2 comprises a tes between two housing parts 3, 4 rotatably arrange ⁇ impeller 5 at.
  • the impeller 5 is arranged in a rotationally fixed manner on a shaft 6 of the electric motor 1 and has two opposing rings of vane chambers 7 delimiting them
  • the guide vanes 8 Opposite the rings of the guide vanes 8, partially annular ducts 9, 10 are arranged in the housing parts 3, 4.
  • the partially annular ducts 9, 10 make with Schaufelkairrmern 7 a leading from an inlet duct 11 to an outlet 12 the conveying chamber 13.
  • the inlet duct 11 and the ⁇ uslasskanal 12 are arranged on a ⁇ other opposing housing parts 3 4.
  • the housing parts 3, 4 are kept at a distance by a ring 14.
  • the fuel pump has a jacket 15 made of sheet metal.
  • the jacket 15 is crimped at its ends and prestresses the components of the fuel pump against one another.
  • the inlet-side housing part 3 essentially consists of a flat disk element 16 and an edge 17 arranged halfway up its circumference.
  • the edge 17 is thus arranged at the level of the neutral fiber with respect to the bulge of the inlet-side housing part 3 and forms a force introduction point 18 for the jacket 15.
  • a flange 19 of the jacket 15 engages behind the edge 17. Radial forces introduced from the flange 19 into the edge 17 therefore do not lead to a deflection of the housing part 3 on the inlet side.
  • the outlet-side housing part 4 has a disk element 20 opposite the impeller 5 and, near its outer periphery, an edge 21 arranged perpendicular to the disk element 20 and is shown in FIG. 2 in a plan view from the side of the electric motor 1 from FIG. 1.
  • a collar 22 running radially outside the edge 21 is guided up to the jacket 15.
  • a yoke ring 23 of the electric motor 1 is supported axially on radially outer support elements 24 of the pump stage 2 arranged on the collar 22.
  • force introduction points 25 are arranged for axially in the outlet-side housing part 4 on the radially outer support elements 24.
  • Force introduction points 25 'for radially into the outlet-side housing part 4 are arranged on the edge exclusively close to the radially outer support elements 24.
  • Seen radially inwardly from the edge 21 of the outlet-side casing part 4 Ge ⁇ has a groove 26 which is interrupted by the edge 21 connecting with the disc member 20 radially inner supporting elements 27th
  • the radially inner support elements 27 are arranged offset from the radially outer support elements 24.
  • Axial forces from the yoke ring 23 of the electric motor 1 are introduced into the outlet-side housing part 4 via the radially outer support elements 24 and can lead to a deformation of the edge 21.
  • a transfer of the Forces on the disk element 20 are avoided by the arrangement of the radially inner and outer support elements 24, 27 and by the groove 26 to one another.
  • the outlet-side housing part 3 has an annular recess 28 in its radially inner region as seen from the partially annular channel 10. This annular recess 28 decouples the region of the outlet-side housing part 4 opposite the shaft 6 of the electric motor 1 from the region having the partially annular channel 10.
  • the outlet-side housing part 4 also has a bearing 29 for the shaft 6 of the electric motor 1.
  • the return ring 23 may include the electric motor 1 single support elements, with which he of the outlet housing portion 4 is supported between the inner support elements radi al ⁇ 27th In this case, the force introduction points would be arranged directly on the circumferential collar 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

Dans un étage de pompe (2), une partie de boîtier (4) présente des zones d'application de force précises (25) par rapport à des composants adjacents. Des éléments d'appui (24, 27) et une rainure (26) sont disposés entre les zones d'application de force (25) et un élément en forme de disque (20) présentant un canal partiellement annulaire (10). Des forces appliquées aux parties du boîtier (4) n'entraînent par conséquent que de faibles déformations dans des zones de ces parties de boîtier (4) adjacentes à la roue à ailettes.
EP04766393A 2003-09-11 2004-08-02 Pompe a carburant Expired - Fee Related EP1664521B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10342256A DE10342256A1 (de) 2003-09-11 2003-09-11 Kraftstoffpumpe
PCT/EP2004/051686 WO2005026523A1 (fr) 2003-09-11 2004-08-02 Pompe a carburant

Publications (2)

Publication Number Publication Date
EP1664521A1 true EP1664521A1 (fr) 2006-06-07
EP1664521B1 EP1664521B1 (fr) 2011-01-26

Family

ID=34305708

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04766393A Expired - Fee Related EP1664521B1 (fr) 2003-09-11 2004-08-02 Pompe a carburant

Country Status (6)

Country Link
US (1) US7862310B2 (fr)
EP (1) EP1664521B1 (fr)
JP (1) JP4589324B2 (fr)
CN (2) CN1849448B (fr)
DE (2) DE10342256A1 (fr)
WO (1) WO2005026523A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2806256A1 (fr) 2010-07-23 2012-01-26 Tokai University Educational System Composition pharmaceutique a administration par voie orale pour patient sous dialyse peritoneale, et mise en oeuvre de celle-ci
CN102434339B (zh) * 2011-12-05 2015-10-14 遵义天义利威机电有限责任公司 一种直流永磁无刷汽车电动燃油泵
DE102014106440A1 (de) * 2014-05-08 2015-11-12 Gebr. Becker Gmbh Laufrad, insbesondere für eine Seitenkanalmaschine

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3118533A1 (de) * 1981-05-09 1982-12-02 Robert Bosch Gmbh, 7000 Stuttgart Aggregat zum foerdern von fluessigkeiten
DE3130288A1 (de) * 1981-07-31 1983-02-17 Robert Bosch Gmbh, 7000 Stuttgart Kraftstoffoerderaggregat mit einem in einer pumpenkammer umlaufenden pumpenrotor
DE3424520C2 (de) * 1984-07-04 1986-07-10 SWF Auto-Electric GmbH, 7120 Bietigheim-Bissingen Kraftstofförderpumpe
CN2091370U (zh) * 1991-05-14 1991-12-25 王睢秦 氟塑料衬里无泄泵
JPH0650280A (ja) 1992-01-03 1994-02-22 Walbro Corp タービン羽根燃料ポンプ
JPH06317285A (ja) 1993-02-09 1994-11-15 Walbro Corp タービン羽根燃料ポンプ
US5702229A (en) * 1996-10-08 1997-12-30 Walbro Corporation Regenerative fuel pump
US6019570A (en) * 1998-01-06 2000-02-01 Walbro Corporation Pressure balanced fuel pump impeller
US6227819B1 (en) 1999-03-29 2001-05-08 Walbro Corporation Fuel pumping assembly
US6231318B1 (en) * 1999-03-29 2001-05-15 Walbro Corporation In-take fuel pump reservoir
US6270310B1 (en) 1999-09-29 2001-08-07 Ford Global Tech., Inc. Fuel pump assembly
US6454521B1 (en) * 2000-11-15 2002-09-24 Delphi Technologies, Inc. Wear resistant fuel pump
DE10313860A1 (de) * 2002-03-28 2003-10-30 Denso Corp Kraftstoffpumpe mit Bürsten und Verfahren zu deren Herstellung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005026523A1 *

Also Published As

Publication number Publication date
CN1849448B (zh) 2010-06-16
US20070065313A1 (en) 2007-03-22
JP4589324B2 (ja) 2010-12-01
JP2007502929A (ja) 2007-02-15
EP1664521B1 (fr) 2011-01-26
DE502004012152D1 (de) 2011-03-10
DE10342256A1 (de) 2005-04-28
WO2005026523A1 (fr) 2005-03-24
CN101846017A (zh) 2010-09-29
US7862310B2 (en) 2011-01-04
CN101846017B (zh) 2012-02-08
CN1849448A (zh) 2006-10-18

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