EP1664539B1 - Pompe a roue a denture interieure comportant des ouvertures renforcees - Google Patents

Pompe a roue a denture interieure comportant des ouvertures renforcees Download PDF

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Publication number
EP1664539B1
EP1664539B1 EP04766379A EP04766379A EP1664539B1 EP 1664539 B1 EP1664539 B1 EP 1664539B1 EP 04766379 A EP04766379 A EP 04766379A EP 04766379 A EP04766379 A EP 04766379A EP 1664539 B1 EP1664539 B1 EP 1664539B1
Authority
EP
European Patent Office
Prior art keywords
housing
fuel pump
housing parts
fuel
rib
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
EP04766379A
Other languages
German (de)
English (en)
Other versions
EP1664539A1 (fr
Inventor
Holger Barth
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
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Continental Automotive GmbH
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Filing date
Publication date
Application filed by Continental Automotive GmbH filed Critical Continental Automotive GmbH
Publication of EP1664539A1 publication Critical patent/EP1664539A1/fr
Application granted granted Critical
Publication of EP1664539B1 publication Critical patent/EP1664539B1/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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2250/00—Geometry
    • F04C2250/10—Geometry 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
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber

Definitions

  • the invention relates to a working according to the gerotor principle fuel pump for delivering fuel from a fuel tank of a motor vehicle with a housing, with a mounted between two housing parts pair of runners, arranged in the housing and elongated designed channels of an inlet and an outlet.
  • Such fuel pumps are often used in particular for the promotion of diesel fuel in today's motor vehicles and are from the US-A-5,219,277 known.
  • the pair of rotors of the fuel pump operating on the gerotor principle has an internal rotor with an external toothing and an external rotor with an internal toothing.
  • the external teeth have one more tooth than the internal teeth.
  • the fulcrum of the inner rotor is offset from the fulcrum of the outer rotor.
  • the channels of the inlet and the outlet are arranged in opposite housing parts. Thus, the fuel pump is flowed through axially.
  • micropump From the EP-A-0 769 621 a micropump has become known for dosing applications. This micropump can be manufactured from almost any materials.
  • a disadvantage of the known fuel pump is that the elongated channels of the inlet and the outlet affect the stability of the housing. Helps in practice one is thus to arrange a stiffening ring made of steel for radial fixation and two ceramic plates or metal plates as the axial boundary of the pair of rotors in the housing parts. As a result, the known fuel pump designed very expensive.
  • the invention is based on the problem, a fuel pump of the type mentioned in such a way that it is particularly simple in design and inexpensive to manufacture.
  • At least one of the channels has at least one rib for stiffening the housing and that at least one of the housing parts is made of plastic and that the housing parts are screwed together, wherein one of the plastic housing parts housings for nuts made of metal Has.
  • the housing in the region of the channel has a particularly high stability.
  • the high stability is of great advantage, in particular at the outlet, since here high forces act perpendicularly on the region of the housing which has the channel of the outlet. A caused by the forces occurring bending of the housing in the region of the channels can be avoided thereby.
  • the housing can be made of a very thin-walled and inexpensive material.
  • the fuel pump according to the invention thus requires no separately mounted stiffening ring, is therefore particularly simple and can also be manufacture particularly inexpensively.
  • the fuel pump according to the invention can be manufactured particularly cost-effectively, because at least one of the housing parts is made of plastic.
  • the low strength compared to the ceramic plates of the known fuel pump made of plastic housing parts is compensated by the ribs in the channels.
  • a compound of the housing parts requires a particularly low design complexity, because the housing parts are screwed together, wherein one of the plastic housing parts has housings for nuts made of metal. The metal nuts ensure sufficient stability of the fuel pump according to the invention.
  • ribs could cover the channels like a grid.
  • the number of ribs can be kept particularly low according to another advantageous embodiment of the invention, when the at least one rib is arranged transversely to the longest extent of the cross section of the channel and mutually opposite, the channel bounding edges of the housing together. Furthermore, thereby the dimensions and thus a throttling effect of the ribs are kept particularly low.
  • the rib is made in one piece with the areas of the housing adjacent to the channels.
  • FIG. 1 shows a sectional view through a conveyor unit for conveying diesel fuel from a fuel tank of a motor vehicle, not shown, to an internal combustion engine with a driven by an electric motor 1 fuel pump 2.
  • the fuel pump 2 has a shaft 3 of the electric motor 1 connected to internal rotor 4, which is equipped with an external rotor 5 forms a pair of runners 6.
  • the external rotor 5 is radially in a ring member 7 and axially mounted between two housing parts 8, 9 of a housing 10.
  • a clutch 11 is arranged, which is rotatably connected to the inner rotor 4.
  • the shaft 3 has a radial bearing with a bush 12 in which the electric motor 1 facing away from the housing part 8 of the fuel pump 2.
  • a pump cover 13 has an intake 14 on.
  • the delivery unit has on its fuel pump 2 remote from the end of a connecting piece 15 for leading to the engine fuel line.
  • the conveyor unit is flowed through axially with the pumped fuel.
  • FIG. 2 shows in an exploded view of the fuel pump 2 from FIG. 1 in that the housing parts 8, 9 each have an elongate channel 16, 17.
  • the in the arrangement close to the electric motor 1 from FIG. 1 provided housing part 9 arranged channel 17 serves as an outlet of the fuel pump 2, while in the arrangement close to the pump cover 13 from FIG. 1 provided housing part 8 arranged channel 16 forms an inlet of the fuel pump 2.
  • the housing parts 8, 9 each have ribs 18, 19, which are arranged transversely to the longest extent of the channels 16, 17.
  • the ribs 18, 19 connect opposite, the respective channel 16, 17 limiting edges of the respective housing part 8, 9.
  • These ribs 18, 19 provide a stability provided in the region of the channels 16, 17, so that the housing parts 8, 9 from Plastic can be made.
  • FIG. 2 shows FIG. 2 in that the housing parts 8, 9 are connected to one another by means of screws 20.
  • the screws 20 are screwed with arranged in one of the housing parts 8 nuts 21 made of steel.
  • the housing part 8 has receptacles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Fuel-Injection Apparatus (AREA)

Claims (3)

  1. Pompe à carburant fonctionnant sur le principe du refoulement, permettant de transférer du carburant à partir d'un réservoir à carburant d'un véhicule automobile, comportant une carcasse, une paire de rotors montés entre deux parties de la carcasse et des canaux allongés placés dans la carcasse pour une admission et une sortie, caractérisée par le fait que au moins l'un des canaux (16, 17) a au moins une nervure (18, 19) destinée à renforcer la carcasse (10) et que au moins l'une des parties (8, 9) de la carcasse est fabriquée en matière plastique et que les parties (8, 9) de la carcasse sont vissées l'une à l'autre, l'une des parties (8) de la carcasse fabriquée en matière plastique comportant des logements (22) pour des écrous (21) en métal.
  2. Pompe à carburant selon la revendication 1, caractérisée par le fait que la au moins une nervure (18, 19) est placée perpendiculairement à la longueur de la section transversale du canal (16, 17) et relie l'un à l'autre des bords de la carcasse (10) se faisant face et limitant le canal (16, 17).
  3. Pompe à carburant selon la revendication 1 ou 2, caractérisée par le fait que la nervure (18, 19) est fabriquée en formant une seule pièce avec les zones de la carcasse (10) limitrophes des canaux (16, 17).
EP04766379A 2003-09-09 2004-07-30 Pompe a roue a denture interieure comportant des ouvertures renforcees Expired - Lifetime EP1664539B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10341841A DE10341841A1 (de) 2003-09-09 2003-09-09 Nach dem Gerotorprinzip arbeitende Kraftstoffpumpe
PCT/EP2004/051671 WO2005026552A1 (fr) 2003-09-09 2004-07-30 Pompe a roue a denture interieure comportant des ouvertures renforcees

Publications (2)

Publication Number Publication Date
EP1664539A1 EP1664539A1 (fr) 2006-06-07
EP1664539B1 true EP1664539B1 (fr) 2008-06-11

Family

ID=34258551

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04766379A Expired - Lifetime EP1664539B1 (fr) 2003-09-09 2004-07-30 Pompe a roue a denture interieure comportant des ouvertures renforcees

Country Status (8)

Country Link
US (1) US20060153706A1 (fr)
EP (1) EP1664539B1 (fr)
JP (1) JP2007504398A (fr)
KR (1) KR20060113652A (fr)
CN (1) CN100564878C (fr)
DE (2) DE10341841A1 (fr)
ES (1) ES2308231T3 (fr)
WO (1) WO2005026552A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2031247A1 (fr) * 2007-08-31 2009-03-04 Pfizer Inc. Pompe liquide
DE102008000701A1 (de) * 2008-03-17 2009-09-24 Robert Bosch Gmbh Brennstoffpumpe
EP2557306A1 (fr) * 2011-08-08 2013-02-13 Delphi Technologies Holding S.à.r.l. Pompe à carburant
DE102012219118A1 (de) * 2012-10-19 2014-04-24 Robert Bosch Gmbh Innenzahnradpumpe
JP2016125361A (ja) * 2014-12-26 2016-07-11 株式会社デンソー 燃料ポンプ
JP6418059B2 (ja) * 2015-05-12 2018-11-07 株式会社デンソー 燃料ポンプ
JP6409673B2 (ja) * 2015-05-14 2018-10-24 株式会社デンソー 燃料ポンプ
WO2016205792A1 (fr) * 2015-06-19 2016-12-22 Clarcor Engine Mobile Solutions, Llc Motopompe intégrée
US10323640B2 (en) 2015-06-19 2019-06-18 Clarcor Engine Mobile Solutions, Llc Fuel filter assembly with brushless DC pump
JP6507998B2 (ja) * 2015-11-03 2019-05-08 株式会社デンソー 燃料ポンプ
DE102018207001B4 (de) 2018-05-07 2021-07-01 Hanon Systems Efp Deutschland Gmbh Fluidpumpsystem
CN111472914B (zh) * 2020-04-15 2021-04-20 温州仁谦汽车油泵有限公司 一种具有防泄漏装置的油泵及其漏油检测方法

Family Cites Families (21)

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Publication number Priority date Publication date Assignee Title
US2339966A (en) * 1939-08-16 1944-01-25 Equi Flow Inc Internal gear pump
US4619588A (en) * 1984-04-25 1986-10-28 Facet Enterprises, Incorporated Wet motor gerotor fuel pump with vapor vent valve and improved flow through the armature
US4978282A (en) * 1989-09-18 1990-12-18 Industrial Technology Research Institute Electrical fuel pump for small motorcycle engine
US5219277A (en) * 1990-05-29 1993-06-15 Walbro Corporation Electric-motor fuel pump
US5122039A (en) * 1990-05-29 1992-06-16 Walbro Corporation Electric-motor fuel pump
DE4021500C3 (de) * 1990-07-05 1998-10-22 Mannesmann Vdo Ag Förderaggregat, insbesondere zum Fördern von Kraftstoff
US5141367A (en) * 1990-12-18 1992-08-25 Kennametal, Inc. Ceramic cutting tool with chip control
DE4142799C1 (fr) * 1991-12-26 1993-04-15 J.M. Voith Gmbh, 7920 Heidenheim, De
DE4227301A1 (de) * 1992-08-18 1994-02-24 Bosch Gmbh Robert Einrichtung zum Fördern von Kraftstoff aus einem Vorratstank zur Brennkraftmaschine eines Kraftfahrzeuges
DE4240592A1 (de) * 1992-12-03 1994-06-09 Bosch Gmbh Robert Aggregat zum Fördern von Kraftstoff aus einem Vorratstank zur Brennkraftmaschine eines Kraftfahrzeugs
DE4240593A1 (de) * 1992-12-03 1994-06-09 Bosch Gmbh Robert Aggregat zum Fördern von Kraftstoff aus einem Vorratstank zur Brennkraftmaschine eines Kraftfahrzeugs
US5393203A (en) * 1993-12-20 1995-02-28 General Motors Corporation Fuel pump for motor vehicle
US5425625A (en) * 1994-03-24 1995-06-20 Lenco Enterprises Co., Ltd. Car-used electric fuel pump
US5404943A (en) * 1994-03-29 1995-04-11 Strawn; Wesley O. Multiple pump assembly for wells
DE19517296C2 (de) * 1995-05-11 2000-08-03 Otto Eckerle Füllstücklose Innenzahnradpumpe
EP0769621A1 (fr) * 1995-09-26 1997-04-23 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Micropompe et micromoteur
US5997262A (en) * 1997-04-10 1999-12-07 Walbro Corporation Screw pins for a gear rotor fuel pump assembly
JPH11200974A (ja) * 1998-01-07 1999-07-27 Denso Corp 燃料フィルタおよびそれを用いたインタンク式燃料ポンプ
US6106240A (en) * 1998-04-27 2000-08-22 General Motors Corporation Gerotor pump
US6102684A (en) * 1998-09-14 2000-08-15 Walbro Corporation Cavitation noise abatement in a positive displacement fuel pump
DE10121800C1 (de) * 2001-05-04 2002-08-22 Siemens Ag Flüssigkeitsringpumpe und Steuerscheibe für eine Flüssigkeitsringpumpe

Also Published As

Publication number Publication date
JP2007504398A (ja) 2007-03-01
US20060153706A1 (en) 2006-07-13
CN100564878C (zh) 2009-12-02
WO2005026552A1 (fr) 2005-03-24
DE502004007363D1 (de) 2008-07-24
DE10341841A1 (de) 2005-04-07
KR20060113652A (ko) 2006-11-02
ES2308231T3 (es) 2008-12-01
CN1836107A (zh) 2006-09-20
EP1664539A1 (fr) 2006-06-07

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