EP1664542B1 - Unite d'acheminement de carburant - Google Patents
Unite d'acheminement de carburant Download PDFInfo
- Publication number
- EP1664542B1 EP1664542B1 EP04766346.3A EP04766346A EP1664542B1 EP 1664542 B1 EP1664542 B1 EP 1664542B1 EP 04766346 A EP04766346 A EP 04766346A EP 1664542 B1 EP1664542 B1 EP 1664542B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- delivery unit
- fuel delivery
- shaft
- impeller
- 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.)
- Expired - Fee Related
Links
Images
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 driven by an electric motor fuel pump, with an arranged between two housing parts impeller of the fuel pump, wherein the impeller is rotatably mounted on 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 pressed-plastic sintered bushing as storage for the shaft.
- the housing parts face the impeller with a particularly small distance and thus form a gap seal of the fuel pump.
- a heat input by friction or heat of the electric motor leads to an expansion of the housing parts and the impeller and thus to a reduction of the gap between the housing parts and the impeller.
- further friction in the fuel pump which leads in the worst case to their terminals.
- Especially in a dry run of the fuel delivery unit blocks the fuel pump in a very short time.
- the invention is based on the problem a fuel delivery unit of the type mentioned in such a way that a clamping of the fuel pump is largely avoided, especially in a dry run.
- At least one of the housing parts has an expansion joint, and that at least one of the housing parts is made of plastic and that the plastic forms a bearing shell for direct storage of the shaft.
- the housing part can expand upon heat input or friction.
- the change in shape of the housing parts can be achieved by a corresponding arrangement of The expansion joint or several expansion joints catch and thus keep away from the bearing of the shaft and the impeller.
- the sealing gap between the housing parts and the impeller can be kept largely constant thanks to the invention even with thermal expansion of the housing parts.
- the fuel delivery unit according to the invention can therefore be operated over a particularly long period dry and thus without fuel without the fuel pump is stuck.
- the housing parts including the bearing of the shaft could not be made entirely of plastic, since the heat input via the electric motor additionally prevents a change in shape by swelling of the plastic in contact with fuel sealing the housing parts relative to the impeller ,
- the expansion joints of 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 relative to the shaft is changed.
- Another advantage of the use of plastic as a housing part is that heat generated by the electric motor is particularly poorly forwarded. This leads to a further reduction of the friction in the fuel pump.
- a heat input into the housing facing the electric motor housing part can be kept particularly low according to another advantageous embodiment of the invention, when the expansion joint disposed at the axial portion near the impeller and is formed as a spacing of the housing part of the shaft.
- the expansion joint extends at the axial portion over the entire height of the radial portion.
- the radial portion of the housing facing the electric motor can thereby extend in its plane, without leading to increased friction in the storage of the shaft.
- a deformation of one of the sections by a change in shape of the other section can be easily avoided according to another advantageous embodiment of the invention, when the expansion joint is arranged in the meeting corner region of the two sections.
- An influencing of the sealing gap between the housing parts and the impeller can be according to another advantageous embodiment of the invention easily avoided if the expansion joint is disposed on the side facing away from the impeller of the electric motor facing the housing part.
- the housing part facing the electric motor can be manufactured particularly cost-effectively in an axially final-shaping injection mold when the expansion joint is designed as a groove running around the axial section.
- it contributes, if the axial portion and the radial portion are made in one piece.
- FIG. 1 shows a provided for arrangement in a fuel tank of a motor vehicle fuel delivery unit with a housing 1 and a driven by an electric motor 2 fuel pump 3.
- the fuel pump 3 is designed as a side channel pump and has a rotatably disposed between two housing parts 4, 5 impeller 6.
- the impeller 6 is mounted on a shaft 7 of the electric motor 2.
- the electric motor 2 has a coil 8 and the shaft 7 having rotor 9 and a housing 1 connected to the stator 10 with magnetic shells.
- the electric motor 2 can be supplied with electric current via electrical contacts 11 arranged on the outside of the housing 1.
- the delivery unit has an axial bearing 12 with a housing part 5 arranged in the housing part 5 facing away from the electric motor, the ball 7 supporting the shaft 7, and a radial bearing 14 in the housing part 4 facing the electric motor 2.
- the fuel pump 3 sucks fuel via an intake passage 15 and delivers it via an outlet channel 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 marked with arrows in the drawing.
- the fuel flows via a check valve 17 to a connecting piece 18.
- a connecting piece 18 a not shown, connected to an internal combustion engine of the motor vehicle fuel line can be connected.
- FIG. 2 shows greatly enlarged a portion of the disposed between the impeller 6 and the electric motor 2 housing part 4 in the region of the shaft 7.
- the electric motor 2 facing housing part 4 of the fuel pump 3 has a radial, tapered to the shaft 7 section 19 and an axial, parallel to
- a first expansion joint 21 extends from the impeller 6 adjacent to the shaft 7 over half of the axial portion 20.
- the radial bearing 14 of the shaft 7 is disposed on the second half of the axial portion 20.
- a second expansion joint 22 is formed as arranged in the radial portion 19, around the axial portion 20 encircling groove.
- the fuel pump 3 may 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)
Claims (9)
- Unité de transport de carburant pour véhicule automobile, présentant une pompe à carburant entraînée par un moteur électrique, une roue à aubes de la pompe à carburant étant disposée entre deux parties de boîtier, la roue à aubes étant fixée à rotation solidaire sur un arbre du moteur électrique, caractérisée en ce que
au moins l'une des parties (4, 5) de boîtier présente un joint de dilatation (21, 22),
en ce qu'au moins l'une des parties (4, 5) du boîtier est réalisée en matière synthétique et
en ce que la matière synthétique forme une coquille de montage permettant un montage direct de l'arbre (7). - Unité de transport de carburant selon la revendication 1, caractérisée en ce que la section radiale (19) de la partie de boîtier (4) tournée vers le moteur électrique (2) se rétrécit en direction de l'arbre (7) et en ce que sa section axiale (20) parallèle à l'arbre (7) s'éloigne de la roue à aubes (6).
- Unité de transport de carburant selon au moins l'une des revendications précédentes, caractérisée en ce que le joint de dilatation (21) est disposé sur la section axiale (20) à proximité de la roue à aubes (6) et est configuré comme écarteur entre la partie (4) du boîtier et l'arbre (7).
- Unité de transport de carburant selon au moins l'une des revendications précédentes, caractérisée en ce que le joint de dilatation (21) s'étend sur environ la moitié de la section axiale (20).
- Unité de transport de carburant selon au moins l'une des revendications précédentes, caractérisée en ce que sur la section axiale (20), le joint de dilatation (21) s'étend sur toute la hauteur de la section radiale (19).
- Unité de transport de carburant selon au moins l'une des revendications précédentes, caractérisée en ce que le joint de dilatation (22) est disposé dans une partie de coin en contact mutuel des deux sections (19, 20).
- Unité de transport de carburant selon au moins l'une des revendications précédentes, caractérisée en ce que le joint de dilatation (22) est disposé sur le côté non tourné vers la roue à aubes (6) de la partie (4) du boîtier tournée vers le moteur électrique (2).
- Unité de transport de carburant selon au moins l'une des revendications précédentes, caractérisée en ce que le joint de dilatation (22) est configuré comme rainure entourant la section axiale (20).
- Unité de transport de carburant selon au moins l'une des revendications précédentes, caractérisée en ce que la section axiale (20) et la section radiale (19) sont réalisées en une seule pièce.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10341840A DE10341840B4 (de) | 2003-09-09 | 2003-09-09 | Kraftstoff-Fördereinheit |
PCT/EP2004/051637 WO2005026555A1 (fr) | 2003-09-09 | 2004-07-28 | Unite d'acheminement de carburant |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1664542A1 EP1664542A1 (fr) | 2006-06-07 |
EP1664542B1 true EP1664542B1 (fr) | 2016-11-16 |
Family
ID=34258550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04766346.3A Expired - Fee Related EP1664542B1 (fr) | 2003-09-09 | 2004-07-28 | Unite d'acheminement de carburant |
Country Status (7)
Country | Link |
---|---|
US (1) | US7708533B2 (fr) |
EP (1) | EP1664542B1 (fr) |
JP (1) | JP2007505252A (fr) |
KR (1) | KR101154610B1 (fr) |
CN (1) | CN100482947C (fr) |
DE (1) | DE10341840B4 (fr) |
WO (1) | WO2005026555A1 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007187145A (ja) * | 2005-12-16 | 2007-07-26 | Denso Corp | 燃料ポンプ |
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 |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1768313A (en) * | 1930-06-24 | Pumping apparatus | ||
US2678606A (en) * | 1950-03-18 | 1954-05-18 | Worthington Corp | Centrifugal pump or compressor |
GB715086A (en) * | 1953-02-06 | 1954-09-08 | Rolls Royce | Improvements relating to separable joints |
GB1137865A (en) * | 1965-03-31 | 1968-12-27 | English Electric Co Ltd | Liquid-metal cooled nuclear reactors and rotary pump assemblies therefor |
DE2405112A1 (de) | 1974-02-02 | 1975-08-07 | Wilhelm Dickow Pumpenfabrik Oh | Pumpe, insbesondere seitenkanalpumpe |
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 |
DE3130288A1 (de) | 1981-07-31 | 1983-02-17 | Robert Bosch Gmbh, 7000 Stuttgart | Kraftstoffoerderaggregat mit einem in einer pumpenkammer umlaufenden pumpenrotor |
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 |
JP3060550B2 (ja) | 1990-02-16 | 2000-07-10 | 株式会社デンソー | 車両用燃料ポンプ |
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 |
JP3755670B2 (ja) | 1998-04-14 | 2006-03-15 | 三菱電機株式会社 | 円周流式液体ポンプ |
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 |
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 US US10/571,215 patent/US7708533B2/en not_active Expired - Fee Related
- 2004-07-28 WO PCT/EP2004/051637 patent/WO2005026555A1/fr active Application Filing
- 2004-07-28 EP EP04766346.3A patent/EP1664542B1/fr not_active Expired - Fee Related
- 2004-07-28 CN CNB2004800257829A patent/CN100482947C/zh not_active Expired - Fee Related
- 2004-07-28 JP JP2006525802A patent/JP2007505252A/ja active Pending
- 2004-07-28 KR KR1020067004641A patent/KR101154610B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US20070065318A1 (en) | 2007-03-22 |
JP2007505252A (ja) | 2007-03-08 |
KR101154610B1 (ko) | 2012-06-08 |
WO2005026555A1 (fr) | 2005-03-24 |
DE10341840B4 (de) | 2006-12-28 |
EP1664542A1 (fr) | 2006-06-07 |
DE10341840A1 (de) | 2005-04-07 |
CN1849455A (zh) | 2006-10-18 |
US7708533B2 (en) | 2010-05-04 |
CN100482947C (zh) | 2009-04-29 |
KR20060058126A (ko) | 2006-05-29 |
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