EP1032759B1 - Kraftstoffversorgungsvorrichtung für eine brennkraftmaschine - Google Patents

Kraftstoffversorgungsvorrichtung für eine brennkraftmaschine Download PDF

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Publication number
EP1032759B1
EP1032759B1 EP99936423A EP99936423A EP1032759B1 EP 1032759 B1 EP1032759 B1 EP 1032759B1 EP 99936423 A EP99936423 A EP 99936423A EP 99936423 A EP99936423 A EP 99936423A EP 1032759 B1 EP1032759 B1 EP 1032759B1
Authority
EP
European Patent Office
Prior art keywords
fuel
filter
pressure
fine filter
internal combustion
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 - Lifetime
Application number
EP99936423A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1032759A1 (de
Inventor
Helmut Rembold
Kurt Frank
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1032759A1 publication Critical patent/EP1032759A1/de
Application granted granted Critical
Publication of EP1032759B1 publication Critical patent/EP1032759B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F02M37/50—Filters arranged in or on fuel tanks
    • 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
    • F02M37/10—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir
    • 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
    • F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
    • F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
    • F02M37/34—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements by the filter structure, e.g. honeycomb, mesh or fibrous

Definitions

  • DE 42 42 242 describes a device for supplying a Internal combustion engine with known fuel in a tank, at the on a conveyor line for the fuel a feed pump and a Fuel filters are arranged.
  • DE 36 31 579 C1 relates to a low-pressure fuel circuit Fuel preheating for an air-compression injection internal combustion engine, especially in the commercial vehicle sector.
  • a high-pressure injection pump leading flow line is a heat exchanger and a fine filter surrounding bypass with a depending on one due to the fine filter of certain maximum pressure acting upon the formation of paraffin Pressure relief valve arranged.
  • DE 38 25 470 A1 has one intended for an internal combustion engine Fuel supply device to the subject.
  • Fuel supply device to the subject In one for High pressure injection pump leading flow line is a heat exchanger and at least one fuel filter and one leading to the fuel tank Return line a pressure-controlled control valve arranged. This leads in Dependence on a pressure prevailing upstream of the fuel filter recycled fuel directly into the intake-side supply line.
  • DE 1 192 623 B relates to a step filter.
  • This essentially includes at least three spaced apart and in a horizontal plane Steps of a filter material graded in its mesh size.
  • the stages will be flows in a vertical direction from bottom to top, the first the step below has a larger mesh size than the one above second step.
  • a dirt trap is provided between each of two stages and the openings required for the flowing medium are narrow at the top central collar of the dirt trap from one side with its concave side Shielded plate facing the next level.
  • the fuel supply device according to the invention with the features of Claim 1 has the advantage that it has a finer filtering of Fuel enables than the previous fuel supply devices for Intake manifold injection without the space requirement of the device increasing significantly or the service life of the filters is reduced.
  • FIGS. 1 and 3 each of which schematically represents an exemplary embodiment.
  • Figures 2 and 4 show fuel supply devices not according to the invention and serve only explanatory purposes.
  • Fig. 1 shows a first example of a device according to the invention Supply of an internal combustion engine with existing in a tank 1 Fuel.
  • the device comprises an electric fuel feed pump 2 which is arranged inside the tank 1 and via one in the vicinity thereof Bottom arranged intake manifold 3 sucks fuel.
  • a sieve is arranged, which the fuel feed pump before in the suction Protects coarse dirt particles from fuel.
  • the sieve may Oppose the flow of the fuel with little resistance, it is therefore usually made of a thin, coarse-mesh membrane Plastic or formed as a wire mesh.
  • the mesh size of the Siebes is typically 0.3 mm when the supply device for Diesel fuel is used, and 0.06 mm for petrol.
  • the fuel delivery pump forms the starting point of a conveyor line, in its Course of the fuel first through a prefilter 4 with a pore size of approx. 8 - 15 ⁇ m, preferably 10 ⁇ m, flows. This catches the coarser ones Suspended matter or contaminants in the fuel. It is like the feed pump 2 arranged inside the tank.
  • the conveyor line also includes a delivery line 5, which extends from the output of the pre-filter 4 a flange 6 to a fine filter arranged outside the tank extends.
  • the pore size of the fine filter is expediently in the range 1.5 - 8 ⁇ m and is significantly smaller, e.g. by a factor of 2-4 than that Pore size of the pre-filter 4.
  • the filters 4 and 7 are in contrast to the sieve downstream of the feed pump 2, they may have a significantly higher pressure difference during operation attack.
  • a line branching off the delivery line leads to a pressure regulator 8.
  • the pressure regulator 8 comprises a pressure chamber 9, which branches off Line is connected directly to the supply line 5 and at one Side is limited by a membrane 10. If the pressure in the pressure chamber exceeds a predetermined value, the membrane 10 of a (not shown) seal seat lifted, and fuel flows out of the Pressure chamber 9 back into the tank. In this way a constant pressure is applied the delivery line 5 regardless of the delivery rate of the fuel pump 2 ensured.
  • Feed pump 2, pre-filter 4 and pressure regulator 8 are expediently with the Flange 6 through a (not shown) support frame to a module connected, which is removed as a unit from the tank 1 by loosening the flange 6 and can be serviced.
  • the illustrated device not according to the invention shown in Fig. 2 comprises the same components as that of FIG substantially. 1.
  • the main difference between the two examples is that in Fig. 2 the order of the fine filter 7 and the pressure regulator is reversed. 8
  • the fine filter 7 thus follows the pre-filter 4 directly, both of which can be integrated in a uniform housing.
  • the arrangement of the pressure regulator behind both filters ensures that the fuel pressure at the carburetor (not shown) is subject to less fluctuations than in the example from FIG. 1, since it does not depend on a throughput-dependent pressure drop in the fine filter 7.
  • the pressure regulator 8 shown separately from the flange 6 in the schematic FIG. 2 is expediently mounted directly on the flange 6.
  • a sensor 11 detects the pressure the delivery line 5, and a control circuit 12 controls the delivery rate of the Feed pump 2 such that the pressure detected by the sensor 11 essentially remains constant at a target pressure in a range of approx. 3 to 5 bar.
  • On Pressure relief valve 13 in a line branching off the delivery line 5 is like this set to open at a pressure that significantly exceeds the set pressure, e.g. approx. 10 bar. It is used in the event of a pressure control malfunction To prevent the occurrence of overpressures on the delivery line 5, which otherwise could possibly cause the delivery line to leak.
  • the how in the example of Fig. 1 arranged outside the tank 1 fine filter 7 is easy to Accessible for maintenance purposes and can be replaced if it is clogged should.
  • the pre-filter 4 inside the tank can be designed as a lifetime filter his.
  • the arrangement of the sensor 11 may vary from the point of view of expediency deviations shown here, e.g. it can be arranged downstream of the fine filter 7 be, or it can be arranged directly at the outlet of the feed pump 2, wherein in the latter case sensor 11 and control circuit 12 expediently in the housing the feed pump 2 are integrated.
  • the device according to FIG. 4 not according to the invention differs from that according to FIG. 3 in that the fine filter 7 is arranged inside the tank 1 and that the pressure relief valve 13 branches off from the delivery line 5 downstream of the fine filter 7.
  • a pressure relief valve, the delivery pumps fuel is integrated in the housing of which usually directly at the output of conventional, in order to limit its output pressure, can be omitted in the embodiment shown in Fig. 3 Fuel feed pump, since its function is taken over by the overpressure valve 13. Alternatively, the pressure relief valve 13 can be omitted if a pressure relief valve integrated in the housing of the feed pump 2 is provided.
  • prefilter 4 and fine filter 7 are spatially separated from one another separate units are shown.
  • both filters can also be made as one piece Filter body be formed, the pore size of a coarse-pored, a pre-filter area to a fine-pored, a Fine filter forming area gradually or gradually decreases.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Filtration Of Liquid (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
EP99936423A 1998-06-29 1999-06-08 Kraftstoffversorgungsvorrichtung für eine brennkraftmaschine Expired - Lifetime EP1032759B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19828931A DE19828931A1 (de) 1998-06-29 1998-06-29 Kraftstoffversorgungsvorrichtung für eine Brennkraftmaschine
DE19828931 1998-06-29
PCT/DE1999/001663 WO2000000736A1 (de) 1998-06-29 1999-06-08 Kraftstoffversorgungsvorrichtung für eine brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP1032759A1 EP1032759A1 (de) 2000-09-06
EP1032759B1 true EP1032759B1 (de) 2003-11-19

Family

ID=7872362

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99936423A Expired - Lifetime EP1032759B1 (de) 1998-06-29 1999-06-08 Kraftstoffversorgungsvorrichtung für eine brennkraftmaschine

Country Status (7)

Country Link
US (1) US6253740B1 (ja)
EP (1) EP1032759B1 (ja)
JP (1) JP2002519569A (ja)
KR (1) KR20010023386A (ja)
DE (2) DE19828931A1 (ja)
ES (1) ES2212594T3 (ja)
WO (1) WO2000000736A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010043644A1 (de) 2010-11-09 2012-05-10 Mahle International Gmbh Kraftstoffversorgungssystem

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19936287C2 (de) * 1999-08-02 2003-04-30 Bosch Gmbh Robert Bedarfssteuerung für ein Kraftstoffördermodul mit variablem Systemdruck
DE10013905A1 (de) 2000-03-21 2001-09-27 Mannesmann Vdo Ag Fördereinrichtung zum Fördern von Kraftstoff
FR2823660A1 (fr) 2001-04-18 2002-10-25 Pneumopartners Dispositif d'aide a l'analyse de bruits adventices
GB0205965D0 (en) * 2002-03-14 2002-04-24 Delphi Tech Inc Fuel system
US6817344B2 (en) * 2002-12-30 2004-11-16 Caterpillar Inc Fuel supply system
US20050061372A1 (en) * 2003-09-23 2005-03-24 Mcgrath Dennis P. Pressure regulator assembly
US6953026B2 (en) * 2003-10-16 2005-10-11 Visteon Global Technologies, Inc. Pressure regulating valve for automotive fuel system
US7302938B2 (en) * 2003-10-16 2007-12-04 Ford Motor Company Mechanical returnless fuel system
ITRE20050095A1 (it) * 2005-07-29 2007-01-30 Ufi Filters Spa Filtro combinato per gasolio
DE202006002952U1 (de) * 2006-02-22 2007-07-05 Mann + Hummel Gmbh Flüssigkeitssystem
DE102007000855B4 (de) * 2006-12-27 2020-06-10 Denso Corporation Kraftstofffördergerät und Speicherkraftstoffeinspritzsystem, das dieses aufweist
MY149414A (en) * 2007-03-29 2013-08-30 Honda Motor Co Ltd Vehicle fuel supply device and fuel filter structure
JP2009144542A (ja) * 2007-12-12 2009-07-02 Aisan Ind Co Ltd 燃料供給装置
US7753033B2 (en) * 2008-09-05 2010-07-13 Delphi Technologies, Inc. Fuel module with orifice upstream from regulator
US7757672B2 (en) * 2008-09-15 2010-07-20 Gm Global Technology Operations, Inc. Anti-clogging fuel pump module
US9051906B2 (en) * 2012-02-29 2015-06-09 Ford Global Technologies, Llc Diesel fuel system conditioning
US11333115B2 (en) * 2015-11-20 2022-05-17 Clark Equipment Company Fuel recirculation method and valve

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1192623B (de) * 1962-03-20 1965-05-13 Gustav Eisermann Stufenfilter
DE3825470A1 (de) * 1988-07-27 1990-02-01 Daimler Benz Ag Fuer eine brennkraftmaschine vorgesehene kraftstoffversorgungseinrichtung

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3631579C1 (de) * 1986-09-17 1992-02-20 Daimler Benz Ag Niederdruckkraftstoffkreislauf mit Kraftstoffvorwaermung fuer eine luftverdichtende Einspritzbrennkraftmaschine,insbesondere fuer Nutzfahrzeuge
DE4224981C2 (de) * 1992-07-29 2003-06-26 Bosch Gmbh Robert Einrichtung zum Fördern von Kraftstoff aus einem Vorratstank zur Brennkraftmaschine eines Kraftfahrzeuges
DE4242242C2 (de) 1992-12-15 2003-04-30 Bosch Gmbh Robert Vorrichtung zum Versorgen der Brennkraftmaschine eines Kraftfahrzeuges mit in einem Vorratstank vorhandenem Kraftstoff
US5330475A (en) * 1993-11-29 1994-07-19 General Motors Corporation Modular fuel sender for motor vehicle
US5415146A (en) * 1993-12-14 1995-05-16 Walbro Corporation Supplemental in-tank filter
DE4420043C1 (de) * 1994-06-08 1995-09-14 Kraft Herbert Georgsdorf Kraftstoffeinspritzanlage für Dieselmotoren mit Kraftstofferwärmung für den Winterbetrieb
JP3556983B2 (ja) * 1994-12-28 2004-08-25 トヨタ自動車株式会社 内燃機関の燃料供給装置
EP0754483B1 (en) * 1995-02-03 2004-02-04 Denso Corporation Filter
JPH08261084A (ja) * 1995-03-20 1996-10-08 Nippondenso Co Ltd 内燃機関の燃料供給装置
JPH08338335A (ja) * 1995-06-09 1996-12-24 Nippondenso Co Ltd 内燃機関の燃料供給装置
DE19605952A1 (de) * 1996-02-17 1997-08-21 Bosch Gmbh Robert Vorrichtung zum Versorgen einer Brennkraftmaschine eines Kraftfahrzeugs mit in einem Vorratstank vorhandenem Kraftstoff

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1192623B (de) * 1962-03-20 1965-05-13 Gustav Eisermann Stufenfilter
DE3825470A1 (de) * 1988-07-27 1990-02-01 Daimler Benz Ag Fuer eine brennkraftmaschine vorgesehene kraftstoffversorgungseinrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010043644A1 (de) 2010-11-09 2012-05-10 Mahle International Gmbh Kraftstoffversorgungssystem

Also Published As

Publication number Publication date
DE59907797D1 (de) 2003-12-24
ES2212594T3 (es) 2004-07-16
DE19828931A1 (de) 1999-12-30
JP2002519569A (ja) 2002-07-02
KR20010023386A (ko) 2001-03-26
US6253740B1 (en) 2001-07-03
EP1032759A1 (de) 2000-09-06
WO2000000736A1 (de) 2000-01-06

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