EP1664539A1 - Innenzahnradpumpe mit verstärkten öffnungen - Google Patents
Innenzahnradpumpe mit verstärkten öffnungenInfo
- Publication number
- EP1664539A1 EP1664539A1 EP04766379A EP04766379A EP1664539A1 EP 1664539 A1 EP1664539 A1 EP 1664539A1 EP 04766379 A EP04766379 A EP 04766379A EP 04766379 A EP04766379 A EP 04766379A EP 1664539 A1 EP1664539 A1 EP 1664539A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- fuel pump
- channels
- housing parts
- 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.)
- Granted
Links
- 239000000446 fuel Substances 0.000 claims abstract description 30
- 239000002184 metal Substances 0.000 claims description 4
- 239000002828 fuel tank Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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
-
- 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
- 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 on the gerotor principle fuel pump for delivering fuel from a Kraf fuel tank of a motor vehicle with a housing, with a pair of runners mounted between two housing parts, with arranged in the housing and elongated channels of an inlet and an outlet.
- the pair of rotors of the fuel pump working according to the gerotor principle has an inner rotor with external teeth and an external rotor with internal teeth.
- the external toothing usually has one more tooth than the internal toothing.
- the fulcrum of the inner rotor is offset from the fulcrum of the outer race s.
- the channels of the inlet and the outlet are usually arranged in opposite housing parts. This flows axially through the fuel pump.
- a disadvantage of the known fuel umpe is that the elongate channels of the inlet and the outlet impair the stability of the housing. In practice, this helps to arrange a steel reinforcement ring for radial fixation and two ceramic plates or metal plates as an axial limitation of the pair of runners in the housing parts. As a result, the known fuel pump is very cost-intensive.
- the invention is based on the problem of developing a fuel pump of the type mentioned at the outset in such a way that it is particularly simple, constructed and inexpensive to manufacture.
- At least one of the channels has at least one rib for stiffening the housing.
- the rib can stiffen the channel and thus prevent the housing from bending in the area of the channel.
- the housing has a particularly high stability in the region of the channel.
- the high stability is particularly advantageous at the outlet, since high forces act perpendicularly on the area of the walking housing that has the channel of the outlet. A bending of the housing in the region of the channels caused by the occurring forces can thereby be avoided.
- This enables the housing to be made from a very thin-walled and inexpensive material.
- the fuel pump according to the invention does not require a stiffening ring to be installed separately, is therefore of a particularly simple construction and can also be manufactured particularly cost-effectively.
- the number of ribs can be kept particularly low if the at least one rib is arranged transversely to the longest extension of the cross section of the channel and connects mutually opposite edges of the housing which delimit the channel. Furthermore, the dimensions and thus a throttling effect of the ribs are kept particularly cering. It helps to further reduce the assembly effort of the fuel pump according to the invention if the rib is made in one piece with the regions of the housing adjoining the channels.
- the fuel pump according to the invention can be manufactured particularly inexpensively if at least one of the housing parts is made of plastic.
- the compared to the ceramic plates of the known Kra tstoffpumpe low strength of the plastic housing parts is compensated for by the ribs in the channels.
- a connection of the housing parts requires a particularly low design effort if the housing parts are screwed together, one of the housing parts made of plastic having receptacles for nuts made of metal.
- the nuts made of metal ensure sufficient stability of the fuel pump according to the invention.
- FIG. 1 shows a sectional view through a delivery unit with a fuel according to the invention
- FIG. 2 shows an exploded view of the fuel pump according to the invention from FIG. 1.
- Figure 1 shows a sectional view through a conveyor unit for conveying diesel fuel from a fuel tank, not shown, of a motor vehicle to one Internal combustion engine with a fuel pump 2 driven by an electric motor 1.
- the fuel umpe 2 has an inner rotor 4 connected to a shaft 3 of the electric motor 1, which forms an armature pair 6 with an outer rotor 5.
- the external rotor 5 is mounted radially in a ring element 7 and axially between two housing parts 8, 9 of a housing 10.
- a clutch 11 is arranged, which is non-rotatably connected to the inner rotor 4.
- the shaft 3 has a radial bearing with a bushing 12 in the housing part 8 of the fuel pump 2 facing away from the electric motor 1.
- a pump cover 13 has an intake port 14.
- the delivery unit has, on its end facing away from the fuel pump 2, a connecting piece 15 for a fuel line leading to the internal combustion engine. The delivered fuel thus flows axially through the delivery unit.
- FIG. 2 shows in an exploded view of the fuel pump 2 from FIG. 1 that the housing parts 8, 9 each have an elongated channel 16, 17.
- the channel 17 arranged in the housing part 9 provided for arrangement near the electric motor 1 from FIG. 1 serves as the outlet of the fuel pump 2, while the channel 16 arranged in the housing part 8 provided for arrangement near the pump cover 13 from FIG. 1 serves as an inlet for the fuel pump 2 forms.
- the housing parts 8, 9 each have ribs 18, 19 which are arranged transversely to the longest extension of the channels 16, 17.
- the ribs 18, 19 connect mutually opposite edges of the respective housing part 8, 9 delimiting the respective channel 16, 17.
- These ribs 18, 19 ensure the intended stability in the region of the channels 16, 17, so that the housing parts 8, 9 are made of Plastic can be made.
- FIG. 2 further shows that the housing parts 8, 9 are connected to one another by means of screws 20.
- the screws 20 are screwed in with nuts 21 made of steel arranged in one of the housing parts 8.
- the housing part 8 has recesses 22
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)
Abstract
Description
Claims
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 (de) | 2003-09-09 | 2004-07-30 | Innenzahnradpumpe mit verstärkten öffnungen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1664539A1 true EP1664539A1 (de) | 2006-06-07 |
EP1664539B1 EP1664539B1 (de) | 2008-06-11 |
Family
ID=34258551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04766379A Expired - Fee Related EP1664539B1 (de) | 2003-09-09 | 2004-07-30 | Innenzahnradpumpe mit verstärkten öffnungen |
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 (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009115355A2 (de) * | 2008-03-17 | 2009-09-24 | Robert Bosch Gmbh | Brennstoffpumpe |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2031247A1 (de) * | 2007-08-31 | 2009-03-04 | Pfizer Inc. | Flüssigkeitspumpe |
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 |
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 |
WO2016205794A1 (en) | 2015-06-19 | 2016-12-22 | Clarcor Engine Mobile Solutions, Llc | Fuel filter assembly with brushless dc pump |
US20160369796A1 (en) * | 2015-06-19 | 2016-12-22 | Clarcor Engine Mobile Solutions, Llc | Integrated Motor-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)
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 (de) * | 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 (de) * | 1995-09-26 | 1997-04-23 | Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. | Mikropumpe und Mikromotor |
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 |
-
2003
- 2003-09-09 DE DE10341841A patent/DE10341841A1/de not_active Ceased
-
2004
- 2004-07-30 KR KR1020067002826A patent/KR20060113652A/ko not_active Application Discontinuation
- 2004-07-30 ES ES04766379T patent/ES2308231T3/es active Active
- 2004-07-30 EP EP04766379A patent/EP1664539B1/de not_active Expired - Fee Related
- 2004-07-30 JP JP2006525804A patent/JP2007504398A/ja active Pending
- 2004-07-30 CN CNB2004800233538A patent/CN100564878C/zh not_active Expired - Fee Related
- 2004-07-30 US US10/571,217 patent/US20060153706A1/en not_active Abandoned
- 2004-07-30 WO PCT/EP2004/051671 patent/WO2005026552A1/de active IP Right Grant
- 2004-07-30 DE DE502004007363T patent/DE502004007363D1/de active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2005026552A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009115355A2 (de) * | 2008-03-17 | 2009-09-24 | Robert Bosch Gmbh | Brennstoffpumpe |
WO2009115355A3 (de) * | 2008-03-17 | 2009-11-19 | Robert Bosch Gmbh | Brennstoffpumpe |
Also Published As
Publication number | Publication date |
---|---|
CN100564878C (zh) | 2009-12-02 |
DE10341841A1 (de) | 2005-04-07 |
CN1836107A (zh) | 2006-09-20 |
WO2005026552A1 (de) | 2005-03-24 |
US20060153706A1 (en) | 2006-07-13 |
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 |
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