EP2201239A1 - Kraftstoffpumpe, insbesondere für ein kraftstoffsystem einer kolben-brennkraftmaschine - Google Patents
Kraftstoffpumpe, insbesondere für ein kraftstoffsystem einer kolben-brennkraftmaschineInfo
- Publication number
- EP2201239A1 EP2201239A1 EP08803453A EP08803453A EP2201239A1 EP 2201239 A1 EP2201239 A1 EP 2201239A1 EP 08803453 A EP08803453 A EP 08803453A EP 08803453 A EP08803453 A EP 08803453A EP 2201239 A1 EP2201239 A1 EP 2201239A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel pump
- coating
- housing
- housing portion
- pump
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
- F02M63/0265—Pumps feeding common rails
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
- F02M59/102—Mechanical drive, e.g. tappets or cams
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/445—Selection of particular materials
-
- 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
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
-
- 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
- F02M37/041—Arrangements for driving gear-type 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
- F02M37/045—Arrangements for driving rotary positive-displacement 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
- F04C2230/00—Manufacture
- F04C2230/90—Improving properties of machine parts
- F04C2230/91—Coating
-
- 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
- F05C2201/00—Metals
- F05C2201/02—Light metals
- F05C2201/021—Aluminium
-
- 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
- F05C2225/08—Thermoplastics
-
- 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
- F05C2225/12—Polyetheretherketones, e.g. PEEK
-
- 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
- F05C2253/00—Other material characteristics; Treatment of material
- F05C2253/22—Reinforcements
Definitions
- Fuel pump in particular for a fuel system of a piston internal combustion engine
- the invention relates to a fuel pump, in particular for a fuel system of a piston internal combustion engine, according to the preamble of claim 1.
- a high-pressure fuel system From the market are known internal combustion engines, such as diesel or gasoline piston engines, with a high-pressure fuel system.
- the latter in turn comprises a high-pressure fuel pump, with which the fuel is sucked from a fuel tank and fed under high pressure to one or more injectors.
- high-pressure fuel pumps usually piston pumps are used, the low pressure side, for example, have a gear pump or a vane pump or are supplied by such.
- At least one of the moving parts in operation for example, gears (in the case of a gear pump) or a rotor (in the case of a vane pump) laterally against a housing portion of the fuel pump, so that they are in operation at this
- housing of the known high-pressure fuel pumps are partially made of aluminum.
- these housing regions which are also referred to as “contact surfaces”, are made of steel or gray cast iron, for example.
- the object of the invention is to provide a high-pressure fuel pump, which has a long service life at low cost and low space requirement.
- the coating provided according to the invention is extremely resistant to wear and is therefore very well suited as a running surface, in particular of rotating parts, for example of gears or rotors of corresponding pump types.
- a separate tread for example, steel or cast iron or the like, for example, aluminum / nickel or anodized aluminum
- the production is simplified, resulting in a cost savings.
- Due to the omission of a washer made of steel or gray cast iron as a tread the space requirement is also reduced, the high-pressure fuel pump thus has relatively small dimensions. If the plastic coating is applied directly to the housing area, without the use of a coated washer as the running surface for the moving part, there is no need for a sealing surface to the outside, which simplifies the construction, reduces costs and increases the operational reliability.
- the plastic is a thermoplastic, in particular a polyetheretherketone.
- a thermoplastic in particular a polyetheretherketone.
- Such a material is particularly resistant to wear and therefore ensures a long service life of the high-pressure fuel pump.
- thermoplastic is reinforced by fibers, in particular carbon fibers.
- the material of at least the housing region on which the coating is applied may comprise aluminum or be aluminum.
- Aluminum is relatively easy to work, which reduces the manufacturing costs. It also has a low weight, whereby the weight of the high-pressure fuel pump is low.
- the fuel high-pressure pump according to the invention in which a region of the coating is designed as a sealing region which cooperates with another region of the housing.
- the plastic coating provided according to the invention fulfills a double function in such a case: In addition to the wear-reducing function, it also fulfills a sealing function.
- a separate seal for example by an O-ring, including the associated machining in
- the sealing region may comprise a peripheral sealing bead or a circumferential sealing lip.
- Such embodiments are easy to produce with conventional plastics, in particular with thermoplastics, and ensure reliable sealing even of high pressure differences.
- a simple production of the coating made of plastic may consist in that the coating is melted onto the housing area.
- the housing region, to which the coating is applied comprises a comparatively thin carrier sheet, which is fastened to another housing region, preferably glued thereto. This allows for specific applications, depending on the sometimes complex geometry of the housing area and / or the area to be sealed, an individual and reliable implementation of the construction.
- FIG. 1 shows a schematic representation of a fuel system of a piston
- Figure 2 is a perspective view of a portion of the high pressure fuel pump of Figure 1;
- FIG. 3 is a schematic section through the area shown in FIG. 2;
- Figure 4 is a view similar to Figure 3 of an alternative embodiment.
- a fuel system for a piston internal combustion engine bears the reference numeral 10 as a whole. It comprises a fuel tank 12, from which a high-pressure fuel pump 14 delivers the fuel into a high-pressure fuel reservoir 16 ("rail"). To the rail 16, a plurality of injectors 18 are connected, which inject the fuel directly into them associated combustion chambers (not shown) of the internal combustion engine.
- the high-pressure fuel pump 14 includes a gear pump 15 on the low-pressure side.
- the high-pressure fuel pump may also include a vane pump or any other suitable type of pump on the low-pressure side.
- the fuel high pressure pump 14 including the low pressure side gear pump 15 is directly and mechanically driven by the engine.
- the low-pressure side gear pump may also have a separate drive, such as an electric motor.
- the housing 20 is made of aluminum.
- a housing portion 22 is machined as a flat surface.
- the housing portion 22 serves as a running surface for two gears 24 and 26, which during operation of the high-pressure fuel pump 14th R.319189 5
- the gears 24 and 26 are thus parts which move during operation and at least indirectly abut against the flat housing region 22.
- a coating made of a plastic namely a thermoplastic
- This coating is shown in cross-hatched in Figure 2, it bears the reference numeral 28.
- the coating 28 is applied to the housing portion 22 on its side facing the two gears 24 and 26 side, the two gears 24 and 26 are thus applied to the coating 28 .
- a polyether ether ketone could be used as the material for the coating 28 .
- the coating 28 is melted onto the housing region 22.
- the coating may additionally be reinforced by fibers, in particular carbon fibers.
- the coating 28 is outside the tread of the two
- Gears 24 and 26 has a circumferential sealing bead 30, which forms a sealing area, which cooperates with a lid 32 formed as another area of the housing 20.
- the cover 32 is screwed to the housing portion 22, which is compressed during assembly of the sealing bead 30 and thereby the area located radially inwardly of the sealing bead 30 is sealed to the outside.
- the housing region 22, on which the coating 28 is applied comprises a comparatively thin carrier sheet 34, which is glued to a residual housing 36 of the high-pressure fuel pump 14.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Fuel-Injection Apparatus (AREA)
- Rotary Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007044499A DE102007044499A1 (de) | 2007-09-18 | 2007-09-18 | Kraftstoffpumpe, insbesondere für ein Kraftstoffsystem einer Kolben-Brennkraftmaschine |
PCT/EP2008/061470 WO2009037100A1 (de) | 2007-09-18 | 2008-09-01 | Kraftstoffpumpe, insbesondere für ein kraftstoffsystem einer kolben-brennkraftmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2201239A1 true EP2201239A1 (de) | 2010-06-30 |
EP2201239B1 EP2201239B1 (de) | 2017-04-12 |
Family
ID=40084320
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08803453.3A Not-in-force EP2201239B1 (de) | 2007-09-18 | 2008-09-01 | Kraftstoffpumpe, insbesondere für ein kraftstoffsystem einer kolben-brennkraftmaschine |
Country Status (8)
Country | Link |
---|---|
US (1) | US8261719B2 (de) |
EP (1) | EP2201239B1 (de) |
JP (1) | JP5232237B2 (de) |
KR (1) | KR20100058564A (de) |
CN (1) | CN101802386B (de) |
DE (1) | DE102007044499A1 (de) |
RU (1) | RU2492348C2 (de) |
WO (1) | WO2009037100A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008042075A1 (de) * | 2008-09-15 | 2010-03-18 | Robert Bosch Gmbh | Vorrichtung zur Kraftstoffversorgung einer Verbrennungskraftmaschine |
IT1396955B1 (it) * | 2009-12-18 | 2012-12-20 | Bosch Gmbh Robert | Impianto di alimentazione di carburante ad un motore a combustione interna |
DE102010001121A1 (de) * | 2010-01-22 | 2011-07-28 | Robert Bosch GmbH, 70469 | Kraftstoffeinspritzsystem und Verfahren zum Steuern einer Kraftstoffpumpe |
DE102010041213A1 (de) * | 2010-09-22 | 2012-03-22 | Robert Bosch Gmbh | Hochdruckpumpe und Verfahren zum Herstellen eines Pumpengehäuses |
DE102010041425A1 (de) * | 2010-09-27 | 2012-03-29 | Robert Bosch Gmbh | Kraftstoffhochdruckpumpe |
EP3065743B1 (de) | 2013-11-07 | 2019-05-29 | SpecGx LLC | Herstellung von 6-hydroxymorphinanen ohne isolierung von zwischenprodukten |
GB2552328A (en) * | 2016-07-18 | 2018-01-24 | Delphi Int Operations Luxembourg Sarl | Transfer pump |
CN111173738A (zh) * | 2018-11-12 | 2020-05-19 | 罗伯特·博世有限公司 | 叶片泵及包括叶片泵的燃料喷射系统 |
Family Cites Families (23)
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GB683678A (en) * | 1950-06-16 | 1952-12-03 | Borg Warner | Improvements in or relating to gear pumps |
GB769763A (en) | 1954-05-20 | 1957-03-13 | Air Equipement | Improvements in or relating to gear pumps |
FI62712C (fi) * | 1979-02-08 | 1983-02-10 | Valmet Oy | Kugghjulspump och/eller -motor |
JPS60114286U (ja) * | 1984-01-10 | 1985-08-02 | 九州日立マクセル株式会社 | ギヤポンプ |
US4781552A (en) * | 1985-11-27 | 1988-11-01 | Jean Malfit | High pressure hydraulic generator receiver for power transmission |
JP2813347B2 (ja) * | 1986-04-01 | 1998-10-22 | ジャン マルフイ | 動力伝達用高圧油圧発生収容器 |
CN87211905U (zh) * | 1987-08-14 | 1988-12-07 | 林可象 | 一种非润滑性液体用的新型齿轮泵 |
IT1229927B (it) * | 1988-10-14 | 1991-09-16 | Cipelletti Alberto Cae | Pompa a palette. |
IT1251843B (it) * | 1991-09-20 | 1995-05-26 | Nuovopignone Ind Meccaniche Ef | Pompa a trascinamento per fluidi viscosi, particolarmente adatta per la lubrificazione di ratiere e telai tessili |
JPH0814167A (ja) * | 1994-06-27 | 1996-01-16 | Ueda Tekko:Kk | タンクローリ用ギヤポンプ |
US5725362A (en) * | 1995-05-09 | 1998-03-10 | Xolox Corporation | Pump assembly |
DE19528631C2 (de) * | 1995-08-04 | 1998-07-23 | Bosch Gmbh Robert | Zahnradmaschine |
DE19635164A1 (de) | 1996-08-30 | 1998-03-05 | Bosch Gmbh Robert | Kolbenpumpe |
JP3602354B2 (ja) * | 1998-11-24 | 2004-12-15 | 光洋精工株式会社 | ギヤポンプ |
JP4239287B2 (ja) * | 1999-04-19 | 2009-03-18 | パナソニック株式会社 | 歯車ポンプ |
JP3648406B2 (ja) * | 1999-06-30 | 2005-05-18 | 光洋精工株式会社 | ギヤポンプ |
CN100449147C (zh) * | 2000-09-11 | 2009-01-07 | 济南液压泵有限责任公司 | 一种齿轮泵用具有双向轴向密封补偿作用的侧板 |
DE10250554A1 (de) * | 2002-10-30 | 2004-05-19 | Robert Bosch Gmbh | Vorrichtung mit einem Gehäuse und mit wenigstens einem im Gehäuse angeordneten rotierenden Bauteil |
DE10256528A1 (de) | 2002-12-04 | 2004-06-24 | Robert Bosch Gmbh | Hochdruckpumpe für eine Kraftstoffeinspritzeinrichtung einer Brennkraftmaschine |
RU2274766C2 (ru) * | 2004-03-29 | 2006-04-20 | Общество с ограниченной ответственностью "Прана" | Насос для подачи топлива из бака к двс автомобиля, вентильный электродвигатель насоса для подачи топлива из бака к двс автомобиля, статор вентильного электродвигателя насоса для подачи топлива из бака двс автомобиля (варианты) |
US7137793B2 (en) * | 2004-04-05 | 2006-11-21 | Peopleflo Manufacturing, Inc. | Magnetically driven gear pump |
US8047825B2 (en) * | 2007-04-09 | 2011-11-01 | United Technologies Corporation | Fluoropolymer-containing films for use with positive-displacement fluid pumps |
RU2342562C1 (ru) * | 2007-05-07 | 2008-12-27 | Тарханов Олег Владимирович | Вакуумный жидкостно-кольцевой насос |
-
2007
- 2007-09-18 DE DE102007044499A patent/DE102007044499A1/de not_active Withdrawn
-
2008
- 2008-09-01 CN CN200880107509.9A patent/CN101802386B/zh not_active Expired - Fee Related
- 2008-09-01 JP JP2010525297A patent/JP5232237B2/ja not_active Expired - Fee Related
- 2008-09-01 WO PCT/EP2008/061470 patent/WO2009037100A1/de active Application Filing
- 2008-09-01 KR KR1020107005849A patent/KR20100058564A/ko not_active Application Discontinuation
- 2008-09-01 RU RU2010115180/06A patent/RU2492348C2/ru not_active IP Right Cessation
- 2008-09-01 US US12/677,600 patent/US8261719B2/en not_active Expired - Fee Related
- 2008-09-01 EP EP08803453.3A patent/EP2201239B1/de not_active Not-in-force
Non-Patent Citations (1)
Title |
---|
See references of WO2009037100A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102007044499A1 (de) | 2009-03-19 |
EP2201239B1 (de) | 2017-04-12 |
US8261719B2 (en) | 2012-09-11 |
KR20100058564A (ko) | 2010-06-03 |
RU2492348C2 (ru) | 2013-09-10 |
CN101802386B (zh) | 2015-05-06 |
JP5232237B2 (ja) | 2013-07-10 |
CN101802386A (zh) | 2010-08-11 |
RU2010115180A (ru) | 2011-10-27 |
JP2010539385A (ja) | 2010-12-16 |
WO2009037100A1 (de) | 2009-03-26 |
US20100192921A1 (en) | 2010-08-05 |
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Legal Events
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Effective date: 20100419 |
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Extension state: AL BA MK RS |
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