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EP1078155A1 - Systeme d'alimentation en carburant pour vehicule - Google Patents

Systeme d'alimentation en carburant pour vehicule

Info

Publication number
EP1078155A1
EP1078155A1 EP00914091A EP00914091A EP1078155A1 EP 1078155 A1 EP1078155 A1 EP 1078155A1 EP 00914091 A EP00914091 A EP 00914091A EP 00914091 A EP00914091 A EP 00914091A EP 1078155 A1 EP1078155 A1 EP 1078155A1
Authority
EP
European Patent Office
Prior art keywords
fuel
filter
engine
pressure accumulator
fuel system
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
Application number
EP00914091A
Other languages
German (de)
English (en)
Other versions
EP1078155B1 (fr
Inventor
Hugo Kroiss
Christian Treml
Georg Wissenbach
Jürgen TURINI
Simon Lösch
Henning Bode
Michael Hofrichter
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
A Kayser Automotive Systems 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 Bayerische Motoren Werke AG, A Kayser Automotive Systems GmbH filed Critical Bayerische Motoren Werke AG
Publication of EP1078155A1 publication Critical patent/EP1078155A1/fr
Application granted granted Critical
Publication of EP1078155B1 publication Critical patent/EP1078155B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F02M37/0047—Layout or arrangement of systems for feeding fuel
    • 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
    • F02M37/0047—Layout or arrangement of systems for feeding fuel
    • F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
    • F02M37/0058—Returnless fuel systems, i.e. the fuel return lines are not entering the fuel tank
    • 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
    • F02M37/38—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 with regeneration means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D33/00—Controlling delivery of fuel or combustion-air, not otherwise provided for
    • F02D33/003—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge
    • F02D33/006—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge depending on engine operating conditions, e.g. start, stop or ambient conditions
    • 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
    • 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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
    • F02M69/54—Arrangement of fuel pressure regulators

Definitions

  • the invention relates to a fuel system for a motor vehicle according to the preamble of claim 1.
  • Fuel systems for motor vehicles are already known, which are provided with a fuel filter, wherein the fuel filter can be installed inside and / or outside a fuel tank. These fuel filters are only flowed through in one direction. As a result, the dirt contained in the fuel deposits more and more on the side of the filter where the fuel flows into the fuel filter. If there is a high proportion of dirt in the fuel, a filter cake can form over time, which leads to an increase in the flow resistance. This increases the power requirement for a fuel pump located in the fuel system.
  • the object of the invention is to provide a fuel system for a motor vehicle in which the flow resistance does not increase or only increases relatively little over the running time of the vehicle.
  • the fuel system according to the invention has a fuel filter in which a deposition trough is formed. Furthermore, a pressure accumulator is built into the fuel assembly so that the fuel in the pressure accumulator relaxes after the engine of the motor vehicle has been switched off and the filter from the fuel outlet side or clean side through to the fuel inlet side or dirt side. This advantageously results in the dirt that has accumulated on the fuel inlet side becoming detached from the filter and collecting in the deposit pan
  • the deposit trough according to the invention is designed by a structure of the housing, for example by the formation of guide vanes, so that fuel does not flow through the deposit trough, so that the deposited dirt is not whirled up.
  • the fuel filter according to the invention can advantageously be arranged on the pressure side or on the suction side in the fuel system, ie behind or in front of the fuel pump.
  • a pressure accumulator is installed in the direction of the engine when the fuel filter is arranged on the pressure side after the filter housing has been opened and when the fuel filter has been arranged on the suction side after the fuel pump has been opened and in both cases in front of a pressure regulator with an upstream check valve
  • the arrangement of a check valve between a branch to the pressure accumulator and the pressure regulator prevents the line leading to the engine from being emptied.
  • a delay valve is provided in the fuel system so that after the engine is started, the pressure build-up in the fuel system is not influenced by filling up the pressure accumulator
  • the fuel system according to the invention advantageously results in a longer service life of the fuel filter. It is also advantageous that the structure of the fuel filter according to the invention makes it possible to reduce the filter volume in comparison with a known fuel filter while maintaining the same service life.
  • the flow resistance of the fuel filter remains approximately constant.
  • the fuel pump of the fuel system only has to apply the normal pressure and not an increased pressure as in the case of a clogged fuel filter, so that the service life of the fuel pump is longer in comparison to fuel systems with conventional fuel filters.
  • the fuel filter, the pressure regulator, the fuel pump, the check valve, the pressure accumulator and possibly the swirl pot can be designed as a preassembled unit, so that the number of sealing points is reduced and thus the emissions are lower.
  • Figure 1 is a schematic diagram of a fuel system in which the fuel filter is arranged on the pressure side and
  • Figure 2 is a schematic diagram of a fuel system in which the fuel filter is provided on the suction side.
  • FIG. 1 shows a first embodiment of a fuel system 1, in which a fuel pump 2 from a fuel tank 3, for example via a baffle, not shown, fuel 4 via lines 5 to a fuel filter 6 promotes.
  • the fuel filter 6 has a housing 7 in which a filter material 8, for example filter fabric or filter paper, is arranged.
  • a deposit pan 9 is formed in the housing 7, which is arranged or protected in such a way that the fuel 4 flowing through the filter material 8 does not influence the dirt 10 accumulating in the deposit pan 9.
  • guide vanes or guide walls can be provided in the housing 7, which prevent the dirt 10 located in the deposit pan 9 from being whirled up by the fuel flow.
  • the fuel filter 6 on the housing 7 has at least one inlet opening 11 for the fuel 4 to be cleaned and at least one outlet opening 12, from which the cleaned fuel 4 flows into a line 13.
  • the filter material 8 adjoining the inlet opening 11 becomes soiled the fastest, for this reason this side of the filter material 8 is referred to below as the dirt side.
  • a line 14 leading to a pressure accumulator 15 is connected to line 13 at a branch point 20.
  • the cleaned fuel 4 flows via a check valve 16 and an adjoining pressure regulator 17 through a line 21 to an engine 18.
  • the fuel pump 2 delivers a predetermined amount of fuel 4 into the pressure accumulator 15, which can be designed, for example, as a diaphragm pressure accumulator.
  • the pressure accumulator 15 is released, so that the fuel 4 located in the pressure accumulator 15 flows via the line 13 and through the outlet opening 12 back into the fuel filter 6 and rinses the filter material 8 there, so that the dirt 10 collected in particular on the dirt side of the filter material 8 dissolves and arrives in the deposit tub 9 by means of appropriate precautions.
  • the fuel 4 used for purging then flows back via the inlet opening 11, the lines 5 via the fuel pump 2 to the suction point 19 in the fuel tank 3.
  • the arrangement of the check valve 16 between the Junction 20 to the pressure accumulator 15 and the pressure regulator 17 prevents the line 21 to the engine 18 from being emptied when the fuel filter 6 is flushed.
  • the second embodiment of the fuel system 1 shown in FIG. 2 differs from the first embodiment of the fuel system 1 shown in FIG. 1 in that the fuel filter 6 is arranged on the suction side.
  • Another difference in the two figures is the flow direction of the fuel 4 shown. While in FIG. 1 the fuel system 1 is shown with the engine 18 running, as can be seen from the flow direction of the fuel 4 indicated by arrows, FIG Fuel system 1 after switching off the engine 18, in which the fuel 4 located in the pressure accumulator 15 flows back into the fuel tank 3 via the fuel pump 2 and the fuel filter 6, as is also indicated by arrows.
  • the fuel pump 2 correspondingly sucks fuel 4 out of the fuel tank 3 via the fuel filter 6 and delivers this fuel 4 to a motor 18 via a check valve 16 and a pressure regulator 17.
  • a predetermined value is set Amount of fuel 4 fed into the pressure accumulator 15.
  • a delay valve can be provided in the branch line 14, so that after starting the engine 18 the pressure accumulator 15 is filled with fuel 4 with a delay.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

Il existe déjà un système d'alimentation (1) en carburant pour véhicule dans lequel un filtre (6) à carburant est traversé seulement dans une direction. Avec ce système, des impuretés (10) présentes dans le carburant se déposent sur le matériau de filtre (8) de telle façon que la résistance à la traversée du matériau de filtre augmente au cours du temps. L'objectif de la présente invention est de réaliser un système d'alimentation en carburant dans lequel la résistance à la traversée du filtre à carburant reste quasiment constante. Cet objectif est atteint grâce à la formation d'une cuve de dépôt (9) dans un boîtier (7) du filtre (6) à carburant, en-dessous d'un matériau de filtre (8) situé dans le boîtier (7), des impuretés (10) extraites du carburant (4) par filtration se déposant à l'intérieur de cette cuve, et grâce à l'installation d'un accumulateur de pression (15) dans le système d'alimentation (1) en carburant, ledit accumulateur permettant au carburant (4) qui y est accumulé de nettoyer le filtre (6) à carburant après l'arrêt du moteur (18).
EP00914091A 1999-03-12 2000-02-25 Systeme d'alimentation en carburant pour vehicule Expired - Lifetime EP1078155B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19911068A DE19911068A1 (de) 1999-03-12 1999-03-12 Kraftstoffanlage für ein Kraftfahrzeug
DE19911068 1999-03-12
PCT/EP2000/001599 WO2000055489A1 (fr) 1999-03-12 2000-02-25 Systeme d'alimentation en carburant pour vehicule

Publications (2)

Publication Number Publication Date
EP1078155A1 true EP1078155A1 (fr) 2001-02-28
EP1078155B1 EP1078155B1 (fr) 2004-09-15

Family

ID=7900751

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00914091A Expired - Lifetime EP1078155B1 (fr) 1999-03-12 2000-02-25 Systeme d'alimentation en carburant pour vehicule

Country Status (5)

Country Link
US (1) US6786085B1 (fr)
EP (1) EP1078155B1 (fr)
JP (1) JP2002539369A (fr)
DE (2) DE19911068A1 (fr)
WO (1) WO2000055489A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3960147B2 (ja) * 2002-06-28 2007-08-15 株式会社ケーヒン 車輌用の燃料供給装置
JP5423334B2 (ja) * 2009-11-17 2014-02-19 株式会社デンソー 燃料フィルタ再生制御装置
DE102009054554A1 (de) * 2009-12-11 2011-06-16 Robert Bosch Gmbh Kraftstoffeinspritzsystem
JP2013136951A (ja) * 2011-12-28 2013-07-11 Denso Corp 燃料フィルタ
JP5821770B2 (ja) * 2012-04-26 2015-11-24 株式会社日本自動車部品総合研究所 燃料供給装置
CN103047227B (zh) * 2012-12-20 2016-04-06 三一重型装备有限公司 反冲洗过滤装置及工作面液压系统
SE537487C2 (sv) * 2013-09-04 2015-05-19 Scania Cv Ab Bränslesystem för förbränningsmotor, förbränningsmotor med ett sådant bränslesystem, fordon med ett sådant bränslesystemoch ett förfarande för att dämpa tryckfluktuationer i ett bränslesystem
JP6385794B2 (ja) * 2014-10-24 2018-09-05 株式会社ミツバ 燃料供給システム
CN107061426B (zh) * 2017-06-22 2021-02-23 杭州力龙液压有限公司 油液过滤装置及液压设备
KR102692296B1 (ko) * 2019-10-25 2024-08-05 현대자동차주식회사 차량용 통합 연료 필터 장치
KR20230034689A (ko) * 2021-09-03 2023-03-10 (주)바이오프랜즈 Dme 연료 발전기

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DE2505925A1 (de) * 1975-02-13 1976-08-26 Daimler Benz Ag Kraftstoff-foerdersystem fuer eine brennkraftmaschine mit kraftstoffeinspritzung
DE2754373A1 (de) * 1977-12-07 1979-06-13 Daimler Benz Ag Einspritzbrennkraftmaschine mit einem die kraftstoffmenge in abhaengigkeit von der menge der zugefuehrten verbrennungsluft einstellenden steuerventil
JPS5727550Y2 (fr) * 1979-01-10 1982-06-16
US4491272A (en) * 1983-01-27 1985-01-01 Ex-Cell-O Corporation Pressure atomizing fuel injection assembly
US4590796A (en) * 1985-01-23 1986-05-27 Floscan Instrument Co., Inc. Apparatus and method for pulsation damping and flow measurement in liquid fuel system
US4649950A (en) * 1985-11-27 1987-03-17 Ex-Cell-O Corporation Fuel nozzle assembly with integral valve assembly and inlet wash filter and primary fuel take-off
DE3718068C1 (en) * 1987-05-29 1988-06-30 Daimler Benz Ag Rod-shaped gauze filter for installation in the flow path of a fuel supply
US5647328A (en) * 1995-06-30 1997-07-15 Walbro Corporation In-tank fuel pump and reservoir
US6281020B1 (en) * 1996-06-17 2001-08-28 Usui Kokusai Sangyo Kaisha Limited Method of testing cleanness of inner surfaces of the parts of a fuel injection system
DE19723329A1 (de) * 1997-06-04 1998-12-10 Bosch Gmbh Robert Kraftstoffeinspritzsystem für Brennkraftmaschinen
US5960775A (en) * 1997-12-08 1999-10-05 Walbro Corporation Filtered fuel pump module
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Title
See references of WO0055489A1 *

Also Published As

Publication number Publication date
EP1078155B1 (fr) 2004-09-15
DE19911068A1 (de) 2000-09-14
DE50007749D1 (de) 2004-10-21
WO2000055489A1 (fr) 2000-09-21
US6786085B1 (en) 2004-09-07
JP2002539369A (ja) 2002-11-19

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