EP2057371A1 - Kraftstoffpumpe - Google Patents
KraftstoffpumpeInfo
- Publication number
- EP2057371A1 EP2057371A1 EP08759635A EP08759635A EP2057371A1 EP 2057371 A1 EP2057371 A1 EP 2057371A1 EP 08759635 A EP08759635 A EP 08759635A EP 08759635 A EP08759635 A EP 08759635A EP 2057371 A1 EP2057371 A1 EP 2057371A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- insert
- housing part
- fuel pump
- fuel
- surface treatment
- 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
Classifications
-
- 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
- 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
-
- 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
- F02M37/08—Feeding by means of driven pumps 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
- F04D29/02—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
- F04D29/046—Bearings
-
- 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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
- F04D29/2227—Construction and assembly for special materials
-
- 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
- F05D2300/00—Materials; Properties thereof
- F05D2300/10—Metals, alloys or intermetallic compounds
- F05D2300/12—Light metals
-
- 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
-
- 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
- F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
- F05D2300/611—Coating
-
- 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
- F05D2300/70—Treatment or modification of materials
Definitions
- the invention relates to a fuel pump for conveying fuel with a housing part for supporting a pump stage and / or an electric motor for driving the pump stage and with an insert fixed in the housing part, the housing part being made of surface-treated metal.
- Such fuel pumps are widely used in today's motor vehicles and are known from practice for conveying fuel from a fuel tank to an internal combustion engine of the motor vehicle.
- Such fuel pumps are widely used in today's motor vehicles and are known from practice for conveying fuel from a fuel tank to an internal combustion engine of the motor vehicle.
- Fuel pumps are usually made of coal or graphite.
- the housing part is first processed and surface-treated by means of electrical current. After the surface treatment, one or more inserts are mounted in the housing part and the entire assembly is reworked. This ensures that the inserts are neither coated nor damaged by aggressive media or electric current in a surface treatment bath. In particular, it has been found that especially carbonaceous
- Inserts are destroyed in an anodizing process.
- the assembly of the insert after the surface treatment of the housing part leads to a very complex production of the fuel pump.
- the surface treatment of the housing part leads to tolerances, which is very troublesome, for example, for press-fitting the insert into the housing part. Frequently, this surface treatment also requires aftertreatment of fits.
- the invention is based on the problem, a fuel pump of the type mentioned in such a way that it is particularly inexpensive to manufacture.
- This problem is inventively solved in that the insert has a surface made of an electrically non-conductive material.
- the insert can already be fastened in the housing part before the surface treatment. Since the insert has a surface of electrically non-conductive material, the surface treatment does not result in damage or coating of the insert. This eliminates the costly assembly of the insert after the surface treatment of the housing part in the production of the fuel pump according to the invention.
- the pairing of the materials of the housing part and of the insert makes it possible to supply an assembly of a plurality of materials to the surface treatment and to treat only desired components.
- the insert is not treated and does not affect the surface treatment of the housing part.
- the production of the fuel pump according to the invention is therefore particularly cost-effective.
- the insert could, for example, have a coating of an electrically non-conductive material. However, it contributes to further reducing the production costs of the fuel pump according to the invention when the insert is made entirely from electrically non-conductive material.
- the insert can be made particularly cost-effective according to another advantageous embodiment of the invention, if at least the surface of the insert is made of phenolic resin or electrically non-conductive plastic. It has been found that, in particular, phenolic resin has sufficient chemical stability with respect to the fuels and high strength during operation of the fuel pump according to the invention. To further reduce the manufacturing cost of the fuel pump according to the invention, it is beneficial if the housing part is made of anodized light metal.
- the fuel pump according to the invention has particularly low manufacturing tolerances with particularly low production costs if the insert is designed as a bearing bush for a shaft for driving the pump stage.
- the bearing of the shaft has particularly low tolerances, since a deterioration of the bearing bush is reliably avoided in the surface treatment of the housing part.
- a deterioration of the seat of the bearing bush is avoided in the surface treatment, since the bearing bush is fastened to the housing part before the surface treatment.
- the low manufacturing tolerances in the storage of the shaft lead to low wear and high smoothness.
- FIG. 1 shows schematically a partial section through a fuel pump according to the invention
- Fig. 2 greatly enlarged a housing part of the fuel pump according to the invention in a sectional view.
- FIG. 1 shows a fuel pump with a pump stage 2 driven by an electric motor 1.
- the fuel pump has an inlet 3 arranged on the pump stage 2 and an outlet nozzle 4 arranged on the side of the electric motor 1 facing away from the pump stage 2 Fuel is conveyed through an outlet 5 of the pump stage 2 by the electric motor 1 to the outlet port 4. At the outlet 4 can be a not shown, connect to an internal combustion engine leading flow line.
- the pump stage 2 has a fixed to a shaft 6 of the electric motor 1 impeller 7 and is designed as a side channel pump.
- the impeller 7 is rotatably between see two housing parts 8, 9 of the pump stage 2 is held.
- an insert 10 is mounted as a bearing bush in one of the housing parts 9.
- One of the housing parts 8 has the inlet 3, while the other of the housing parts 9 has the outlet 5.
- the impeller 7 and the housing parts 8, 9 have from the inlet 3 to the outlet 5 leading delivery chambers 11.
- the fuel pump has a jacket 12 made of metal, which biases the housing parts 8, 9 against each other.
- FIG 2 shows greatly enlarged the insert 10 having housing part 9 of the fuel pump of Figure 1.
- the housing part 9 is made of light metal and has a coating 13 on.
- the insert 10 is pressed into a bore 14 of the housing part 8 and made of phenolic resin.
- the coating 13 was applied to the housing part 9 with a surface treatment, for example in the anodizing process, after the insert 10 had been pressed into the bore 14. Since phenolic resin is an electrically non-conductive material, the insert 10 was not coated in the surface treatment. Also, the insert 10 was not damaged by the surface treatment, so that the assembly formed from the coated light metal and the insert 10 made of phenolic resin is ready for installation in the fuel pump shown in Figure 1 without further treatment.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Fuel-Injection Apparatus (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007025510A DE102007025510A1 (de) | 2007-06-01 | 2007-06-01 | Kraftstoffpumpe |
| PCT/EP2008/055973 WO2008145536A1 (de) | 2007-06-01 | 2008-05-15 | Kraftstoffpumpe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2057371A1 true EP2057371A1 (de) | 2009-05-13 |
| EP2057371B1 EP2057371B1 (de) | 2018-03-07 |
Family
ID=39712403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08759635.9A Active EP2057371B1 (de) | 2007-06-01 | 2008-05-15 | Kraftstoffpumpe |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20100172776A1 (de) |
| EP (1) | EP2057371B1 (de) |
| JP (1) | JP5323061B2 (de) |
| KR (1) | KR20100024927A (de) |
| CN (1) | CN101680402A (de) |
| BR (1) | BRPI0812281B8 (de) |
| DE (1) | DE102007025510A1 (de) |
| MX (1) | MX2009012907A (de) |
| WO (1) | WO2008145536A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009008792A1 (de) * | 2009-02-13 | 2010-08-19 | Continental Automotive Gmbh | Kraftstoffpumpe und Verfahren zur Fertigung einer Kraftstoffpumpe |
| DE102012223592A1 (de) | 2012-12-18 | 2014-07-03 | Robert Bosch Gmbh | Geometrie zum Ausgleich axial auftretender Spalte in Elektropumpen |
| DE102015213420A1 (de) | 2015-07-16 | 2017-03-30 | Continental Automotive Gmbh | Kraftstoffförderpumpe |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4432659A (en) * | 1982-03-12 | 1984-02-21 | Walbro Corporation | Fuel pump armature shaft bearing |
| JPH062690A (ja) * | 1992-04-03 | 1994-01-11 | Nippondenso Co Ltd | 燃料ポンプ |
| JPH04203288A (ja) * | 1990-11-29 | 1992-07-23 | Keihin Seiki Mfg Co Ltd | 車輌用燃料ポンプ |
| JP3237360B2 (ja) * | 1993-02-04 | 2001-12-10 | 株式会社デンソー | 再生ポンプおよびそのケーシング |
| US5338587A (en) * | 1993-04-30 | 1994-08-16 | Xerox Corporation | Electrographic methods |
| JP3213465B2 (ja) * | 1993-11-19 | 2001-10-02 | 株式会社ミツバ | 燃料供給ポンプ |
| US5393206A (en) * | 1994-06-29 | 1995-02-28 | General Motors Corporation | Fuel pump for a motor vehicle |
| JP3463356B2 (ja) * | 1994-06-30 | 2003-11-05 | 株式会社デンソー | ウエスコポンプ |
| GB2307947B (en) * | 1995-12-08 | 1999-08-18 | Aisan Ind | Magnetically coupled pump |
| DE19634253A1 (de) * | 1995-12-30 | 1997-07-03 | Bosch Gmbh Robert | Aggregat zum Fördern von Kraftstoff |
| JP3479182B2 (ja) * | 1996-04-26 | 2003-12-15 | アイシン精機株式会社 | 流体ポンプ |
| JP4016441B2 (ja) * | 1996-10-02 | 2007-12-05 | 株式会社ジェイ・エム・エス | ターボ式血液ポンプ |
| US6328528B1 (en) * | 2000-04-25 | 2001-12-11 | Freudenberg-Nok General Partnership | Elastomeric pump impeller |
| US6402460B1 (en) * | 2000-08-01 | 2002-06-11 | Delphi Technologies, Inc. | Abrasion wear resistant fuel pump |
| JP2002235625A (ja) * | 2000-12-07 | 2002-08-23 | Mitsubishi Electric Corp | 電動燃料ポンプ |
| JP3812737B2 (ja) * | 2001-07-31 | 2006-08-23 | 株式会社デンソー | 燃料ポンプ |
| US20030210995A1 (en) * | 2002-03-13 | 2003-11-13 | Minebea Co., Ltd. | Electrically motorized pump for use in water |
| JP2004152838A (ja) * | 2002-10-29 | 2004-05-27 | Sony Corp | 半導体レーザー装置 |
| US20040258334A1 (en) * | 2003-02-28 | 2004-12-23 | Minebea Co., Ltd. | Underwater sleeve bearing and application thereof |
| US7384248B2 (en) * | 2003-07-14 | 2008-06-10 | Jansen's Aircraft Systems Controls, Inc. | Fuel metering pump |
| JP2005036692A (ja) * | 2003-07-18 | 2005-02-10 | Mitsubishi Heavy Ind Ltd | ポンプ用軸受装置 |
-
2007
- 2007-06-01 DE DE102007025510A patent/DE102007025510A1/de not_active Withdrawn
-
2008
- 2008-05-15 WO PCT/EP2008/055973 patent/WO2008145536A1/de not_active Ceased
- 2008-05-15 MX MX2009012907A patent/MX2009012907A/es unknown
- 2008-05-15 EP EP08759635.9A patent/EP2057371B1/de active Active
- 2008-05-15 US US12/602,529 patent/US20100172776A1/en not_active Abandoned
- 2008-05-15 JP JP2010509781A patent/JP5323061B2/ja active Active
- 2008-05-15 CN CN200880018152A patent/CN101680402A/zh active Pending
- 2008-05-15 BR BRPI0812281A patent/BRPI0812281B8/pt active IP Right Grant
- 2008-05-15 KR KR1020097025190A patent/KR20100024927A/ko not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2008145536A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| BRPI0812281B1 (pt) | 2019-06-04 |
| MX2009012907A (es) | 2010-01-14 |
| KR20100024927A (ko) | 2010-03-08 |
| DE102007025510A1 (de) | 2008-12-04 |
| CN101680402A (zh) | 2010-03-24 |
| JP5323061B2 (ja) | 2013-10-23 |
| BRPI0812281A2 (pt) | 2014-11-18 |
| EP2057371B1 (de) | 2018-03-07 |
| JP2010528218A (ja) | 2010-08-19 |
| WO2008145536A1 (de) | 2008-12-04 |
| US20100172776A1 (en) | 2010-07-08 |
| BRPI0812281B8 (pt) | 2023-01-17 |
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