WO2005026555A1 - Kraftstoff-fördereinheit - Google Patents
Kraftstoff-fördereinheit Download PDFInfo
- Publication number
- WO2005026555A1 WO2005026555A1 PCT/EP2004/051637 EP2004051637W WO2005026555A1 WO 2005026555 A1 WO2005026555 A1 WO 2005026555A1 EP 2004051637 W EP2004051637 W EP 2004051637W WO 2005026555 A1 WO2005026555 A1 WO 2005026555A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- unit according
- delivery unit
- impeller
- shaft
- expansion joint
- 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.)
- Ceased
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
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/047—Bearings hydrostatic; hydrodynamic
-
- 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
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
-
- 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
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials 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
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/043—Shafts
- F04D29/044—Arrangements for joining or assembling shafts
-
- 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
-
- 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
-
- 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
- F05D2300/00—Materials; Properties thereof
- F05D2300/40—Organic materials
- F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
-
- 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
Definitions
- the invention relates to a fuel delivery unit for a motor vehicle with a motor umpe driven by an electric motor umpe, with an impeller arranged between two housing parts of the fuel umpe, the impeller being rotatably attached to a shaft of the electric motor.
- the housing parts of the fuel pump are usually made of metal or a sintered ceramic or have a sintered bush pressed into plastic as a bearing for the shaft.
- the housing parts face the impeller at a particularly small distance and thus form a gap seal for the fuel.
- Heat input due to friction or heat from the electric motor leads to an expansion of the housing parts and the impeller and thus to a reduction in the gap between the housing parts and the impeller.
- there is further friction in the fuel pump which in the worst case leads to its jamming.
- the fuel umpe blocks in a very short time.
- the invention is based on the problem of developing a fuel delivery unit of the type mentioned at the outset in such a way that jamming of the fuel pump is largely avoided, in particular during dry running.
- This design allows the housing part to expand when heat is introduced or when friction occurs.
- the change in shape of the housing parts can be absorbed by an appropriate arrangement of the expansion joint or several expansion joints and thus kept away from the bearing of the shaft and the impeller.
- the sealing gap between the housing parts and the impeller can be thanks keep the invention largely constant even with thermal expansion of the housing parts. This minimizes the generation of further friction and largely prevents the fuel pump from jamming.
- the fuel delivery unit according to the invention can therefore be operated dry over a particularly long period of time and thus without fuel, without the fuel pump jamming.
- the fuel delivery unit according to the invention can be manufactured particularly cost-effectively if at least one of the housing parts is made of plastic and if the plastic forms a bearing shell for the direct mounting of the shaft.
- the housing parts including the bearing of the shaft, could not be made entirely of plastic, since in addition to the heat input via the electric motor, a change in shape due to swelling of the plastic upon contact with fuel sealed the housing parts from the Prevent impeller.
- the expansion joints according to the invention absorb the change in shape of the plastic by swelling and thus prevent the sealing gap from the impeller and a bearing gap from the shaft from being changed.
- Another advantage of using plastic as the housing part is that heat generated by the electric motor is transmitted particularly poorly. This leads to a further reduction in friction in the fuel pump.
- heat input into the housing part facing the electric motor can be kept particularly low if the expansion joint is arranged on the axial section near the impeller and is designed as a spacing of the housing part from the shaft.
- the expansion joint extends over approximately half of the axial section.
- the friction in the area of the bearing of the shaft is further reduced if the expansion joint on the axial section extends over the entire height of the radial section.
- the radial section of the housing part facing the electric motor can expand in its plane without leading to increased friction in the bearing of the shaft.
- the housing part facing the electric motor can be manufactured particularly cost-effectively in an axially formable injection mold if the expansion joint is designed as a groove running around the axial section. It helps to further reduce the manufacturing costs of the fuel delivery unit according to the invention if the axial section and the radial section are manufactured in one piece.
- the invention permits numerous embodiments. To further clarify its basic principle, one of these is shown in the drawing and is described below. This shows in
- FIG. 1 shows a fuel delivery unit according to the invention for a motor vehicle
- FIG. 2 shows a greatly enlarged illustration of a partial area II of a fuel pump of the delivery unit from FIG. 1.
- FIG. 1 shows a fuel delivery unit provided for arrangement in a fuel tank of a motor vehicle with a housing 1 and with a fuel pump 3 driven by an electric motor 2.
- the fuel pump 3 is designed as a side channel pump and has an impeller rotatably arranged between two housing parts 4, 5 6 on.
- the impeller 6 is fastened on a shaft 7 of the electric motor 2.
- the electric motor 2 has a coils 8 and the shaft 7 having a rotor 9 and a stator 10 connected to the housing 1 with magnetic shells.
- the electric motor 2 can be supplied with electrical current via electrical contacts 11 arranged on the outside of the housing 1.
- the conveying unit has an axial bearing 12 with a ball 13, which supports the shaft 7, arranged in the housing part 5 facing away from the electric motor 2, and a radial bearing 14 in the housing part 4 facing the electric motor 2.
- the fuel pump 3 draws in fuel via an intake duct 15 and conveys it via an outlet duct 16 into the housing 1 of the delivery unit.
- the fuel then flows through the electric motor 2 in a gap between the stator 10 and the rotor 9.
- the flows of the fuel are indicated by arrows in the drawing.
- the fuel then flows via a check valve 17 to a connecting piece 18.
- a fuel line (not shown) connected to an internal combustion engine of the motor vehicle can be connected to the connecting piece 18.
- FIG. 2 shows a greatly enlarged portion of the housing part 4 arranged between the impeller 6 and the electric motor 2 in the region of the shaft 7.
- the housing part 4 of the fuel umpe 3 facing the electric motor 2 has a radial section 19 and running towards the shaft 7 an axial section 20 arranged parallel to the shaft 7.
- a first expansion joint 21 extends from the impeller 6 adjacent to the shaft 7 over half of the axial section 20.
- the radial bearing 14 of the shaft 7 is on the second half of the axial section 20 arranged.
- a second expansion joint 22 is formed as a nu arranged in the radial section 19 and encircling the axial section 20.
- Fuel pump 3 generates frictional heat to expand radial section 19 in the direction pointing to shaft 7.
- the radial section 19 is able to expand slightly towards the shaft 7 through the two expansion joints 21, 22 without introducing forces into the radial bearing 14.
- the expansion of the housing part 4 arranged between the fuel pump 3 and the electric motor 2 from FIG. 1 is shown in dash-dotted lines when the temperature rises.
- the invention was exemplified on a side channel pump.
- the fuel pump 3 can also be a peripheral pump or a positive displacement pump, such as a so-called G-rotor pump.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006525802A JP2007505252A (ja) | 2003-09-09 | 2004-07-28 | 燃料フィードユニット |
| US10/571,215 US7708533B2 (en) | 2003-09-09 | 2004-07-28 | Fuel feed unit |
| KR1020067004641A KR101154610B1 (ko) | 2003-09-09 | 2004-07-28 | 연료 펌프 유닛 |
| EP04766346.3A EP1664542B1 (de) | 2003-09-09 | 2004-07-28 | Kraftstoff-f rdereinheit |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10341840A DE10341840B4 (de) | 2003-09-09 | 2003-09-09 | Kraftstoff-Fördereinheit |
| DE10341840.7 | 2003-09-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005026555A1 true WO2005026555A1 (de) | 2005-03-24 |
Family
ID=34258550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2004/051637 Ceased WO2005026555A1 (de) | 2003-09-09 | 2004-07-28 | Kraftstoff-fördereinheit |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7708533B2 (de) |
| EP (1) | EP1664542B1 (de) |
| JP (1) | JP2007505252A (de) |
| KR (1) | KR101154610B1 (de) |
| CN (1) | CN100482947C (de) |
| DE (1) | DE10341840B4 (de) |
| WO (1) | WO2005026555A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007187145A (ja) * | 2005-12-16 | 2007-07-26 | Denso Corp | 燃料ポンプ |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100899612B1 (ko) * | 2007-10-17 | 2009-05-27 | 한국기계연구원 | 엘피지용 외장형 연료펌프 |
| US9249806B2 (en) | 2011-02-04 | 2016-02-02 | Ti Group Automotive Systems, L.L.C. | Impeller and fluid pump |
| US20140212272A1 (en) * | 2013-01-31 | 2014-07-31 | Delphi Technologies, Inc. | Fluid pump |
| CN103591010A (zh) * | 2013-10-24 | 2014-02-19 | 安徽工贸职业技术学院 | 一种轻便型燃油泵 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1768313A (en) * | 1930-06-24 | Pumping apparatus | ||
| DE2405112A1 (de) * | 1974-02-02 | 1975-08-07 | Wilhelm Dickow Pumpenfabrik Oh | Pumpe, insbesondere seitenkanalpumpe |
| DE3130288A1 (de) * | 1981-07-31 | 1983-02-17 | Robert Bosch Gmbh, 7000 Stuttgart | Kraftstoffoerderaggregat mit einem in einer pumpenkammer umlaufenden pumpenrotor |
| US5123809A (en) * | 1990-02-16 | 1992-06-23 | Nippondenso Co., Ltd. | Vehicle fuel pump |
| EP0994259A1 (de) * | 1998-04-14 | 2000-04-19 | Mitsubishi Denki Kabushiki Kaisha | Seitenströmungspumpe |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2678606A (en) * | 1950-03-18 | 1954-05-18 | Worthington Corp | Centrifugal pump or compressor |
| US2764266A (en) * | 1953-02-06 | 1956-09-25 | Rolls Royce | Separable joints |
| GB1137865A (en) * | 1965-03-31 | 1968-12-27 | English Electric Co Ltd | Liquid-metal cooled nuclear reactors and rotary pump assemblies therefor |
| FR2379881A1 (fr) * | 1977-02-04 | 1978-09-01 | Commissariat Energie Atomique | Bloc-pompe echangeur de chaleur pour reacteurs nucleaires |
| US4427337A (en) * | 1981-02-17 | 1984-01-24 | The United States Of America As Represented By The United States Department Of Energy | Bearing for liquid metal pump |
| JPS63126587A (ja) | 1986-11-17 | 1988-05-30 | 武蔵工業株式会社 | 超音波プレ−ト洗浄方法 |
| JPS63223388A (ja) | 1987-03-12 | 1988-09-16 | Honda Motor Co Ltd | ポンプ装置 |
| JPH0631633B2 (ja) * | 1987-08-12 | 1994-04-27 | 株式会社ユニシアジェックス | タ−ビン型燃料ポンプ |
| DE8909458U1 (de) * | 1989-08-05 | 1990-11-29 | Robert Bosch Gmbh, 7000 Stuttgart | Kraftstofförderaggregat |
| US5219277A (en) * | 1990-05-29 | 1993-06-15 | Walbro Corporation | Electric-motor fuel pump |
| DE4020520A1 (de) * | 1990-06-28 | 1992-01-02 | Bosch Gmbh Robert | Aggregat zum foerdern von kraftstoff vom vorratstank zur brennkraftmaschine eines kraftfahrzeuges |
| KR960001631B1 (ko) * | 1991-05-14 | 1996-02-03 | 미쓰비시덴키가부시키가이샤 | 원주류식(圓周流式) 액체펌프 |
| JPH05195961A (ja) | 1992-01-16 | 1993-08-06 | Aisan Ind Co Ltd | フューエルポンプ |
| JPH0727031A (ja) | 1993-07-09 | 1995-01-27 | Aisan Ind Co Ltd | 自動車用燃料ポンプ |
| DE4428254A1 (de) * | 1994-08-10 | 1996-02-15 | Bosch Gmbh Robert | Aggregat zum Fördern von Kraftstoff aus einem Vorratstank zur Brennkraftmaschine eines Kraftfahrzeuges |
| US6270310B1 (en) * | 1999-09-29 | 2001-08-07 | Ford Global Tech., Inc. | Fuel pump assembly |
| US6402460B1 (en) * | 2000-08-01 | 2002-06-11 | Delphi Technologies, Inc. | Abrasion wear resistant fuel pump |
| DE10044610B4 (de) * | 2000-09-09 | 2006-05-18 | Siemens Ag | Filtermodul für eine Kraftstofffördereinheit und Kraftstofffördereinheit für ein Kraftfahrzeug |
| US20020095935A1 (en) * | 2001-01-22 | 2002-07-25 | Kapich Davorin D. | Single shaft hybrid supercharger system |
| JP3812737B2 (ja) * | 2001-07-31 | 2006-08-23 | 株式会社デンソー | 燃料ポンプ |
| JP3924673B2 (ja) * | 2001-11-20 | 2007-06-06 | 株式会社ケーヒン | ウエスコ式燃料ポンプ |
| CN2530066Y (zh) * | 2001-12-27 | 2003-01-08 | 万进光 | 内浸入齿轮式电动燃油泵 |
-
2003
- 2003-09-09 DE DE10341840A patent/DE10341840B4/de not_active Expired - Fee Related
-
2004
- 2004-07-28 WO PCT/EP2004/051637 patent/WO2005026555A1/de not_active Ceased
- 2004-07-28 JP JP2006525802A patent/JP2007505252A/ja active Pending
- 2004-07-28 KR KR1020067004641A patent/KR101154610B1/ko not_active Expired - Fee Related
- 2004-07-28 EP EP04766346.3A patent/EP1664542B1/de not_active Expired - Lifetime
- 2004-07-28 US US10/571,215 patent/US7708533B2/en not_active Expired - Fee Related
- 2004-07-28 CN CNB2004800257829A patent/CN100482947C/zh not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1768313A (en) * | 1930-06-24 | Pumping apparatus | ||
| DE2405112A1 (de) * | 1974-02-02 | 1975-08-07 | Wilhelm Dickow Pumpenfabrik Oh | Pumpe, insbesondere seitenkanalpumpe |
| DE3130288A1 (de) * | 1981-07-31 | 1983-02-17 | Robert Bosch Gmbh, 7000 Stuttgart | Kraftstoffoerderaggregat mit einem in einer pumpenkammer umlaufenden pumpenrotor |
| US5123809A (en) * | 1990-02-16 | 1992-06-23 | Nippondenso Co., Ltd. | Vehicle fuel pump |
| EP0994259A1 (de) * | 1998-04-14 | 2000-04-19 | Mitsubishi Denki Kabushiki Kaisha | Seitenströmungspumpe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007187145A (ja) * | 2005-12-16 | 2007-07-26 | Denso Corp | 燃料ポンプ |
Also Published As
| Publication number | Publication date |
|---|---|
| US7708533B2 (en) | 2010-05-04 |
| EP1664542B1 (de) | 2016-11-16 |
| JP2007505252A (ja) | 2007-03-08 |
| EP1664542A1 (de) | 2006-06-07 |
| CN100482947C (zh) | 2009-04-29 |
| CN1849455A (zh) | 2006-10-18 |
| KR20060058126A (ko) | 2006-05-29 |
| DE10341840A1 (de) | 2005-04-07 |
| US20070065318A1 (en) | 2007-03-22 |
| KR101154610B1 (ko) | 2012-06-08 |
| DE10341840B4 (de) | 2006-12-28 |
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