US20060153706A1 - Internal gear-wheel pump comprising reinforced channels - Google Patents

Internal gear-wheel pump comprising reinforced channels Download PDF

Info

Publication number
US20060153706A1
US20060153706A1 US10/571,217 US57121706A US2006153706A1 US 20060153706 A1 US20060153706 A1 US 20060153706A1 US 57121706 A US57121706 A US 57121706A US 2006153706 A1 US2006153706 A1 US 2006153706A1
Authority
US
United States
Prior art keywords
housing
fuel pump
housing parts
ducts
fuel
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
US10/571,217
Other languages
English (en)
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
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
Assigned to SIEMENS AKTIENGESELLSCHAFT reassignment SIEMENS AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BARTH, HOLGER
Publication of US20060153706A1 publication Critical patent/US20060153706A1/en
Assigned to CONTINENTAL AUTOMOTIVE GMBH reassignment CONTINENTAL AUTOMOTIVE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SIEMENS AKTIENGESELLSCHAFT
Abandoned legal-status Critical Current

Links

Images

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 gerotor fuel pump for feeding fuel from a fuel tank of a motor vehicle having a housing, having a rotor pair mounted between two housing parts, and having elongated inlet and outlet ducts arranged in the housing.
  • Fuel pumps of this type are often used in particular to feed diesel fuel in modern-day motor vehicles, and are known from practice.
  • the rotor pair of the gerotor fuel pump has an inner rotor with external toothing and an outer rotor with internal toothing.
  • the external toothing usually has one tooth more than the internal toothing.
  • the rotational centre of the inner rotor is offset with respect to the rotational centre of the outer rotor.
  • the inlet and outlet ducts are usually arranged in opposing housing parts. As a result, flow passes axially through the fuel pump.
  • a disadvantage of the known fuel pump is that the elongated inlet and outlet ducts adversely affect the stability of the housing. In practice, this can be dealt with by arranging in the housing parts a steel reinforcing ring for radially fixing, and two ceramic plates or metal plates for axially delimiting, the rotor pair.
  • the known fuel pump is very costly as a result.
  • the object on which the invention is based is that of developing a fuel pump of the type mentioned in the introduction in such a way that it is of particularly simple construction and can be produced cost-effectively.
  • At least one of the ducts has at least one rib for strengthening the housing.
  • the rib can reinforce the duct and thus prevent the housing from bending in the region of the duct.
  • the housing has a particularly high stability in the region of the duct. High stability is particularly advantageous at the outlet since high forces act on that region of the housing which has the outlet duct. As a result, bending of the housing in the region of the ducts which is caused by the occurring forces can be eliminated.
  • the housing can be produced from a very thin-walled and cost-effective material as a result. In this way, the fuel pump according to the invention requires no separate reinforcing rings to be mounted, is therefore of particularly simple construction and can additionally be produced particularly cost-effectively.
  • a plurality of ribs could, for example, cover the ducts in the manner of a grid.
  • the number of ribs can be kept particularly low if the at least one rib is arranged transversely with respect to the longest extent of the duct cross section, and connects opposing edges of the housing, which delimit the duct, to one another.
  • the dimensions and thus a throttling effect of the ribs are kept particularly low as a result.
  • the outlay in terms of assembly of the fuel pump according to the invention can be reduced further if the rib is produced in one piece with those regions of the housing which adjoin the ducts.
  • the fuel pump according to the invention can be produced particularly cost-effectively if at least one of the housing parts is produced from plastic.
  • the low strength of the plastic housing parts in comparison to the ceramic plates of the known fuel pump is compensated for by the ribs in the ducts.
  • the housing parts can be connected with a particularly low structural outlay if the housing parts are screwed to one another, one of the plastic housing parts having receptacles for metal nuts.
  • the metal nuts ensure sufficient stability of the fuel pump according to the invention.
  • FIG. 1 shows a section illustration through a feed unit having a fuel pump according to the invention
  • FIG. 2 shows an exploded illustration of the fuel pump according to the invention in FIG. 1 .
  • FIG. 1 shows a section illustration through a feed unit for feeding diesel fuel from a fuel tank (not illustrated) of a motor vehicle to an internal combustion engine having a fuel pump 2 which is driven by an electric motor 1 .
  • the fuel pump 2 has an inner rotor 4 which is connected to a shaft 3 of the electric motor 1 and forms a rotor pair 6 with an outer rotor 5 .
  • the outer rotor 5 is mounted radially in an annular element 7 and axially between two housing parts 8 , 9 of a housing 10 .
  • a coupling 11 is arranged on the shaft 3 of the electric motor 1 and is connected in a rotationally fixed manner to the inner rotor 4 .
  • the shaft 3 has a radial bearing with a bush 12 in that housing part 8 of the fuel pump 2 which faces away from the electric motor 1 .
  • a pump cover 13 has an intake pipe 14 .
  • the feed unit On its end facing away from the fuel pump 2 , the feed unit has a connecting pipe 15 for a fuel line which leads to the internal combustion engine. As a result, the supplied fuel flows axially through the feed unit.
  • FIG. 2 shows that the housing parts 8 , 9 each have an elongated duct 16 , 17 .
  • the duct 17 arranged in the housing part 9 which is intended to be arranged near the electric motor 1 from FIG. 1 , serves as an outlet of the fuel pump 2
  • the duct 16 arranged in the housing part 8 which is intended to be arranged near the pump cover 13 from FIG. 1 , forms an inlet of the fuel pump 2 .
  • the housing parts 8 , 9 each have ribs 18 , 19 respectively which are arranged transversely with respect to the longest extent of the ducts 16 , 17 .
  • FIG. 2 also shows that the housing parts 8 , 9 are connected to one another by means of screws 20 .
  • the screws 20 are screwed into steel nuts 21 arranged in one of the housing parts 8 .
  • the housing part 8 has receptacles 22 , formed as recesses, for the nuts 21 .

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)
US10/571,217 2003-09-09 2004-07-30 Internal gear-wheel pump comprising reinforced channels Abandoned US20060153706A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10341841A DE10341841A1 (de) 2003-09-09 2003-09-09 Nach dem Gerotorprinzip arbeitende Kraftstoffpumpe
DE10341841.5 2003-09-09
PCT/EP2004/051671 WO2005026552A1 (de) 2003-09-09 2004-07-30 Innenzahnradpumpe mit verstärkten öffnungen

Publications (1)

Publication Number Publication Date
US20060153706A1 true US20060153706A1 (en) 2006-07-13

Family

ID=34258551

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/571,217 Abandoned US20060153706A1 (en) 2003-09-09 2004-07-30 Internal gear-wheel pump comprising reinforced channels

Country Status (8)

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

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100308074A1 (en) * 2007-08-31 2010-12-09 Pfizer, Inc. Liquid pump
WO2016103663A1 (ja) * 2014-12-26 2016-06-30 株式会社デンソー 燃料ポンプ
WO2016205792A1 (en) * 2015-06-19 2016-12-22 Clarcor Engine Mobile Solutions, Llc Integrated motor-pump
US10024318B2 (en) 2015-05-14 2018-07-17 Denso Corporation Fuel pump
US10286345B2 (en) 2015-06-19 2019-05-14 Clarcor Engine Mobile Solutions, Llc Brushless DC motor control and methods of operating a fuel pump
US10557468B2 (en) * 2015-11-03 2020-02-11 Denso Corporation Fuel pump

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008000701A1 (de) * 2008-03-17 2009-09-24 Robert Bosch Gmbh Brennstoffpumpe
EP2557306A1 (de) * 2011-08-08 2013-02-13 Delphi Technologies Holding S.à.r.l. Kraftstoffpumpe
DE102012219118A1 (de) * 2012-10-19 2014-04-24 Robert Bosch Gmbh Innenzahnradpumpe
JP6418059B2 (ja) * 2015-05-12 2018-11-07 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

Citations (17)

* Cited by examiner, † Cited by third party
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
US5122039A (en) * 1990-05-29 1992-06-16 Walbro Corporation Electric-motor fuel pump
US5156540A (en) * 1990-07-05 1992-10-20 Vdo Adolf Schindling Ag Internal gear fuel pump
US5219277A (en) * 1990-05-29 1993-06-15 Walbro Corporation Electric-motor fuel pump
US5299923A (en) * 1991-12-26 1994-04-05 J. M. Voith Gmbh Internal gear pump
US5350258A (en) * 1990-12-18 1994-09-27 Kennametal Inc. Ceramic cutting tool with chip control
US5364246A (en) * 1992-12-03 1994-11-15 Robert Bosch Gmbh Aggregate for feeding fuel from supply tank to internal combustion engine of motor vehicle
US5393203A (en) * 1993-12-20 1995-02-28 General Motors Corporation Fuel pump for motor vehicle
US5404943A (en) * 1994-03-29 1995-04-11 Strawn; Wesley O. Multiple pump assembly for wells
US5425625A (en) * 1994-03-24 1995-06-20 Lenco Enterprises Co., Ltd. Car-used electric fuel pump
US5997262A (en) * 1997-04-10 1999-12-07 Walbro Corporation Screw pins for a gear rotor fuel pump assembly
US6102684A (en) * 1998-09-14 2000-08-15 Walbro Corporation Cavitation noise abatement in a positive displacement fuel pump
US6106240A (en) * 1998-04-27 2000-08-22 General Motors Corporation Gerotor pump
US6106244A (en) * 1998-01-07 2000-08-22 Denso Corporation Fuel apparatus having fuel filter and in-tank type fuel pump
US6179596B1 (en) * 1995-09-26 2001-01-30 Fraunhofer Gesellschaft Zur Foerderung Der Andewandten Forschung E.V. Micromotor and micropump

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE19517296C2 (de) * 1995-05-11 2000-08-03 Otto Eckerle Füllstücklose Innenzahnradpumpe
DE10121800C1 (de) * 2001-05-04 2002-08-22 Siemens Ag Flüssigkeitsringpumpe und Steuerscheibe für eine Flüssigkeitsringpumpe

Patent Citations (17)

* Cited by examiner, † Cited by third party
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
US5122039A (en) * 1990-05-29 1992-06-16 Walbro Corporation Electric-motor fuel pump
US5219277A (en) * 1990-05-29 1993-06-15 Walbro Corporation Electric-motor fuel pump
US5156540A (en) * 1990-07-05 1992-10-20 Vdo Adolf Schindling Ag Internal gear fuel pump
US5350258A (en) * 1990-12-18 1994-09-27 Kennametal Inc. Ceramic cutting tool with chip control
US5299923A (en) * 1991-12-26 1994-04-05 J. M. Voith Gmbh Internal gear pump
US5364246A (en) * 1992-12-03 1994-11-15 Robert Bosch Gmbh Aggregate for feeding fuel from supply tank to internal combustion engine of motor vehicle
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
US6179596B1 (en) * 1995-09-26 2001-01-30 Fraunhofer Gesellschaft Zur Foerderung Der Andewandten Forschung E.V. Micromotor and micropump
US5997262A (en) * 1997-04-10 1999-12-07 Walbro Corporation Screw pins for a gear rotor fuel pump assembly
US6106244A (en) * 1998-01-07 2000-08-22 Denso Corporation Fuel apparatus having fuel filter and in-tank type fuel pump
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

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100308074A1 (en) * 2007-08-31 2010-12-09 Pfizer, Inc. Liquid pump
WO2016103663A1 (ja) * 2014-12-26 2016-06-30 株式会社デンソー 燃料ポンプ
US10024318B2 (en) 2015-05-14 2018-07-17 Denso Corporation Fuel pump
WO2016205792A1 (en) * 2015-06-19 2016-12-22 Clarcor Engine Mobile Solutions, Llc Integrated motor-pump
US10286345B2 (en) 2015-06-19 2019-05-14 Clarcor Engine Mobile Solutions, Llc Brushless DC motor control and methods of operating a fuel pump
US10323640B2 (en) 2015-06-19 2019-06-18 Clarcor Engine Mobile Solutions, Llc Fuel filter assembly with brushless DC pump
US10557468B2 (en) * 2015-11-03 2020-02-11 Denso Corporation Fuel pump

Also Published As

Publication number Publication date
CN100564878C (zh) 2009-12-02
EP1664539A1 (de) 2006-06-07
DE10341841A1 (de) 2005-04-07
CN1836107A (zh) 2006-09-20
WO2005026552A1 (de) 2005-03-24
DE502004007363D1 (de) 2008-07-24
JP2007504398A (ja) 2007-03-01
ES2308231T3 (es) 2008-12-01
EP1664539B1 (de) 2008-06-11
KR20060113652A (ko) 2006-11-02

Similar Documents

Publication Publication Date Title
US20060153706A1 (en) Internal gear-wheel pump comprising reinforced channels
US20050069427A1 (en) Housing for a fluid flow engine
US20060228235A1 (en) Pump aggregate
US6213734B1 (en) Motor fuel delivery unit
US5449269A (en) Aggregate for feeding fuel from a supply tank to internal combustion engine of motor vehicle
US6425734B2 (en) Feed pump
CN107819379A (zh) 旋转电机
JP2001515985A (ja) 特に内燃機関の潤滑油のためのフィルタを備えたオイルポンプモジュール
US5904468A (en) Flow pump, especially for supplying fuel from a fuel tank of a motor vehicle
US8517708B2 (en) Fuel pump with axial slide gap
US6832901B2 (en) Aggregate for conveying fuel
JP2005248963A (ja) 自動車用のモータコンプレッサー組立体
KR20080011380A (ko) 내부 기어 연료 펌프
US6846155B2 (en) Fuel pump
US6454547B1 (en) Delivery unit
US7473069B2 (en) Fuel pump for a fuel tank
US5464319A (en) Regenerative pump with an axially shifting working fluid chamber
KR100538538B1 (ko) 터보형 유체기계
CN108700081A (zh) 径向压缩机和废气再循环系统
US7862310B2 (en) Fuel pump
US6527507B2 (en) Feeding aggregate for fuel
US20060078446A1 (en) Delivery unit
CN103261694A (zh) 真空泵
CN100434662C (zh) 发动机的水泵和总成
US20100068046A1 (en) Volute of lower end unit of fuel cell system

Legal Events

Date Code Title Description
AS Assignment

Owner name: SIEMENS AKTIENGESELLSCHAFT, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BARTH, HOLGER;REEL/FRAME:017682/0753

Effective date: 20060110

AS Assignment

Owner name: CONTINENTAL AUTOMOTIVE GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SIEMENS AKTIENGESELLSCHAFT;REEL/FRAME:027263/0068

Effective date: 20110704

STCB Information on status: application discontinuation

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