EP1342912A2 - Fuel supply system for an internal combustion engine - Google Patents

Fuel supply system for an internal combustion engine Download PDF

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Publication number
EP1342912A2
EP1342912A2 EP03000995A EP03000995A EP1342912A2 EP 1342912 A2 EP1342912 A2 EP 1342912A2 EP 03000995 A EP03000995 A EP 03000995A EP 03000995 A EP03000995 A EP 03000995A EP 1342912 A2 EP1342912 A2 EP 1342912A2
Authority
EP
European Patent Office
Prior art keywords
fuel
pump
pressure
fuel supply
line
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
EP03000995A
Other languages
German (de)
French (fr)
Other versions
EP1342912A3 (en
EP1342912B1 (en
Inventor
Hermann Dr. Middendorf
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.)
Volkswagen AG
Original Assignee
Volkswagen AG
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 Volkswagen AG filed Critical Volkswagen AG
Publication of EP1342912A2 publication Critical patent/EP1342912A2/en
Publication of EP1342912A3 publication Critical patent/EP1342912A3/en
Application granted granted Critical
Publication of EP1342912B1 publication Critical patent/EP1342912B1/en
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
    • 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
    • F02M37/0047—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
    • F02M37/22—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
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/04—Means for damping vibrations or pressure fluctuations in injection pump inlets or outlets
    • 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
    • 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
    • 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
    • F02M63/023—Means for varying pressure in common rails
    • F02M63/0235—Means for varying pressure in common rails by bleeding fuel pressure
    • F02M63/025—Means for varying pressure in common rails by bleeding fuel pressure from the common rail

Definitions

  • the invention relates to a fuel supply for an internal combustion engine, in particular a motor vehicle, with a low-pressure system and a high-pressure system, the high-pressure system comprising a high-pressure pump with at least one downstream high-pressure injection valve and the low-pressure system comprising a demand-controlled fuel pump and a fuel line connecting the fuel pump to the high-pressure pump, according to the preamble of claim 1.
  • a fuel supply system is known from DE 42 31 731 A1, in which a check valve is arranged in a fuel line in order to prevent a backward flow of fuel from a supply device to a pump.
  • DE 195 27 134 A1 describes a fuel guiding device for internal combustion engines with a pressure valve with a check valve in a fuel line, which only opens when a fuel pump builds up a predetermined pressure in the fuel line.
  • the invention has for its object to improve a fuel supply of the type mentioned above with respect to the risk of leakage due to brief overpressures.
  • a throttle check valve is arranged in the fuel line forming a fuel feed to the high-pressure pump.
  • the fuel pump is preferably arranged on a tank and, for example, a single-piston pump.
  • a fuel filter with a pressure sensor is arranged in the fuel line between the fuel pump and the throttle check valve.
  • the throttle check valve is expediently arranged on the engine side near the high-pressure pump.
  • a fuel filter 22 with a pressure sensor is arranged in the fuel line 14.
  • a tank vent 24 with AKF 26 is arranged on the fuel tank 10.
  • a leakage line 28 with a check valve 30 connects the high pressure pump 16 to the fuel pump 12.
  • the high pressure rail 18 is connected to a pressure relief valve 32, which is connected to the fuel line 14 via a return line 34 downstream of the fuel filter 22.
  • a line 36 indicates which parts are arranged on a vehicle side 38 and which parts are arranged on an engine side 40.
  • the fuel pump 12 is designed as a single-piston pump with a delivery rate of approximately 0.4 l / h to 40 l / h and delivery pressures of 1 bar to 6 bar.
  • the fuel tank 10, the fuel pump 12, the fuel line 14 and the fuel filter 22 form a low pressure system of the fuel supply.
  • the high pressure pump 16, the high pressure rail 18 and the high pressure injectors 20 form a high pressure system of fuel supply. While the low-pressure system has both vehicle-side 38 and engine-side 40 components, the high-pressure system is arranged on the engine 40.
  • a throttle check valve 42 is arranged in the fuel line 14 between the fuel pump 12 and the high pressure pump 16 in the low pressure system on the engine side, ie in the fuel inlet of the high pressure pump 16.
  • the throttle check valve 42 reduces pressure pulsations caused by the single-piston pump 12 in the low-pressure system. Pressure waves that propagate from the fuel pump 12 in the fuel line 14 in the direction of the high-pressure pump 16 are damped in this direction by a small opening cross section of the throttle check valve 42. Exceeding the permissible system pressure due to such pressure pulsations is effectively avoided, so that there is little risk of fuel leaks.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

The arrangement has low and high pressure systems. The high pressure system has a high pressure pump (16) followed at least one high pressure injection valve (20). The low pressure system has a demand-driven fuel pump (12) connected to the high pressure pump via a fuel line (14) forming part of the low pressure system with a choke non-return valve (42) with a smaller opening cross-section that n the fuel line.

Description

Die Erfindung betrifft eine Kraftstoffversorgung für eine Brennkraftmaschine, insbesondere eines Kraftfahrzeuges, mit einem Niederdrucksystem und einem Hochdrucksystem, wobei das Hochdrucksystem eine Hochdruckpumpe mit wenigstens einem nachgeordneten Hochdruckeinspritzventil und das Niederdrucksystem eine bedarfsgesteuerte Kraftstoffpumpe sowie eine die Kraftstoffpumpe mit der Hochdruckpumpe verbindende Kraftstoffleitung umfaßt, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a fuel supply for an internal combustion engine, in particular a motor vehicle, with a low-pressure system and a high-pressure system, the high-pressure system comprising a high-pressure pump with at least one downstream high-pressure injection valve and the low-pressure system comprising a demand-controlled fuel pump and a fuel line connecting the fuel pump to the high-pressure pump, according to the preamble of claim 1.

Aus der DE 42 31 731 A1 ist ein Kraftstoffzuführungssystem bekannt, bei dem in einer Kraftstoffleitung ein Rückschlagventil angeordnet ist, um ein rückwärts gerichtetes Fließen von Kraftstoff von einer Zuführeinrichtung zu einer Pumpe verhindert.A fuel supply system is known from DE 42 31 731 A1, in which a check valve is arranged in a fuel line in order to prevent a backward flow of fuel from a supply device to a pump.

Die DE 195 27 134 A1 beschreibt eine Kraftstoffleiteinrichtung für Verbrennungsmotoren mit einem Druckventil mit Rückschlagventil in einer Kraftstoffleitung, welches nur öffnet, wenn eine Kraftstoffpumpe einen vorbestimmten Druck in der Kraftstoffleitung aufbaut.DE 195 27 134 A1 describes a fuel guiding device for internal combustion engines with a pressure valve with a check valve in a fuel line, which only opens when a fuel pump builds up a predetermined pressure in the fuel line.

Der Erfindung liegt die Aufgabe zugrunde, eine Kraftstoffzuführung der obengenannten Art bzgl. der Gefahr von Leckagen aufgrund von kurzzeitigen Überdrücken zu verbessern.The invention has for its object to improve a fuel supply of the type mentioned above with respect to the risk of leakage due to brief overpressures.

Diese Aufgabe wird erfindungsgemäß durch eine Kraftstoffzuführung der o.g. Art mit den in Anspruch 1 gekennzeichneten Merkmalen gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Ansprüchen angegeben.This object is achieved by a fuel supply of the above. Kind with the features characterized in claim 1 solved. Advantageous embodiments of the invention are specified in the dependent claims.

Dazu ist es erfindungsgemäß vorgesehen, daß in der einen Kraftstoffzulauf zur Hochdruckpumpe ausbildenden Kraftstoffleitung ein Drosselrückschlagventil angeordnet ist.For this purpose, it is provided according to the invention that a throttle check valve is arranged in the fuel line forming a fuel feed to the high-pressure pump.

Die Kraftstoffpumpe ist bevorzugt an einem Tank angeordnet und beispielsweise eine Einkolbenpumpe.The fuel pump is preferably arranged on a tank and, for example, a single-piston pump.

In einer bevorzugten Ausführungsform ist in der Kraftstoffleitung zwischen Kraftstoffpumpe und Drosselrückschlagventil ein Kraftstoffilter mit Drucksensor angeordnet.In a preferred embodiment, a fuel filter with a pressure sensor is arranged in the fuel line between the fuel pump and the throttle check valve.

Zweckmäßigerweise ist das Drosselrückschlagventil motorseitig nahe der Hochdruckpumpe angeordnet.The throttle check valve is expediently arranged on the engine side near the high-pressure pump.

Weitere Merkmale, Vorteile und vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den abhängigen Ansprüchen, sowie aus der nachstehenden Beschreibung der Erfindung anhand der beigefügten Zeichnung. Diese zeigt in der einzigen Fig. eine schematisches Funktionsschaltbild einer bevorzugten Ausführungsform einer erfindungsgemäßen Kraftstoffversorgung.Further features, advantages and advantageous embodiments of the invention result from the dependent claims and from the following description of the invention with reference to the accompanying drawing. In the single figure, this shows a schematic functional circuit diagram of a preferred embodiment of a fuel supply according to the invention.

Die in der einzigen Fig. beispielhaft dargestellte, bevorzugte Ausführungsform einer erfindungsgemäßen Kraftstoffversorgung für eine Brennkraftmaschine umfaßt einen Kraftstofftank 10 mit einer bedarfsgesteuerten Kraftstoffpumpe 12, eine Kraftstoffleitung 14, welche die Kraftstoffpumpe 12 mit einer Hochdruckpumpe 16 mit Mengensteuerventil verbindet, und eine Hochdruckrail 18, welche mit entsprechenden Hochdruckeinspritzventilen 20 der ansonsten nicht näher dargestellten Brennkraftmaschine in kraftstoffleitender Verbindung steht. In der Kraftstoffleitung 14 ist ein Kraftstoffilter 22 mit Drucksensor angeordnet. Am Kraftstofftank 10 ist eine Tankentlüftung 24 mit AKF 26 angeordnet. Eine Leckageleitung 28 mit einem Rückschlagventil 30 verbindet die Hochdruckpumpe 16 mit der Kraftstoffpumpe 12. An einem stromabseitigen Ende ist die Hochdruckrail 18 mit einem Druckbegrenzungsventil 32 verbunden, welches über eine Rücklaufleitung 34 stromab des Kraftstoffilters 22 mit der Kraftstoffleitung 14 verbunden ist. Eine Linie 36 kennzeichnet, welche Teile auf einer Fahrzeugseite 38 und welche Teile auf einer Motorseite 40 angeordnet sind.The preferred embodiment of a fuel supply for an internal combustion engine according to the invention, which is shown by way of example in the single FIG corresponding high-pressure injection valves 20 of the internal combustion engine, which is otherwise not shown in detail, is in a fuel-conducting connection. A fuel filter 22 with a pressure sensor is arranged in the fuel line 14. A tank vent 24 with AKF 26 is arranged on the fuel tank 10. A leakage line 28 with a check valve 30 connects the high pressure pump 16 to the fuel pump 12. At a downstream end, the high pressure rail 18 is connected to a pressure relief valve 32, which is connected to the fuel line 14 via a return line 34 downstream of the fuel filter 22. A line 36 indicates which parts are arranged on a vehicle side 38 and which parts are arranged on an engine side 40.

Die Kraftstoffpumpe 12 ist als Einkolbenpumpe mit einer Förderleistung von ca. 0,4 l/h bis 40 l/h und Förderdrücken von 1 bar bis 6 bar ausgebildet. Der Kraftstofftank 10, die Kraftstoffpumpe 12, die Kraftstoffleitung 14 und der Kraftstoffilter 22 bilden ein Niederdrucksystem der Kraftstoffversorgung. Die Hochdruckpumpe 16, die Hochdruckrail 18 und die Hochdruckeinspritzventile 20 bilden ein Hochdrucksystem der Kraftstoffversorgung. Während das Niederdrucksystem sowohl fahrzeugseitige 38 als auch motorseitige 40 Komponenten aufweist, ist das Hochdrucksystem motorseitig 40 angeordnet.The fuel pump 12 is designed as a single-piston pump with a delivery rate of approximately 0.4 l / h to 40 l / h and delivery pressures of 1 bar to 6 bar. The fuel tank 10, the fuel pump 12, the fuel line 14 and the fuel filter 22 form a low pressure system of the fuel supply. The high pressure pump 16, the high pressure rail 18 and the high pressure injectors 20 form a high pressure system of fuel supply. While the low-pressure system has both vehicle-side 38 and engine-side 40 components, the high-pressure system is arranged on the engine 40.

Erfindungsgemäße ist in der Kraftstoffleitung 14 zwischen Kraftstoffpumpe 12 und Hochdruckpumpe 16 im Niederdrucksystem ein Drosselrückschlagventil 42 motorseitig, d.h. im Kraftstoffzulauf der Hochdruckpumpe 16, angeordnet. Das Drosselrückschlagventil 42 reduziert von der Einkolbenpumpe 12 verursachte Druckpulsationen im Niederdrucksystem. Druckwellen, die sich ausgehend von der Kraftstoffpumpe 12 in der Kraftstoffleitung 14 in Richtung Hochdruckpumpe 16 ausbreiten, werden durch einen kleinen Öffnungsquerschnitt des Drosselrückschlagventils 42 in dieser Richtung gedämpft. Ein Überschreitung des zulässigen Systemdruckes durch derartige Druckpulsationen ist wirksam vermieden, so daß eine geringe Gefahr bzgl. Kraftstoffleckagen besteht.According to the invention, a throttle check valve 42 is arranged in the fuel line 14 between the fuel pump 12 and the high pressure pump 16 in the low pressure system on the engine side, ie in the fuel inlet of the high pressure pump 16. The throttle check valve 42 reduces pressure pulsations caused by the single-piston pump 12 in the low-pressure system. Pressure waves that propagate from the fuel pump 12 in the fuel line 14 in the direction of the high-pressure pump 16 are damped in this direction by a small opening cross section of the throttle check valve 42. Exceeding the permissible system pressure due to such pressure pulsations is effectively avoided, so that there is little risk of fuel leaks.

BEZUGSZEICHENLISTELIST OF REFERENCE NUMBERS

1010
KraftstofftankFuel tank
1212
Kraftstoffpumpe (tankseitig)Fuel pump (tank side)
1414
KraftstoffleitungFuel line
1616
Hochdruckpumpehigh pressure pump
1818
HochdruckrailHigh-pressure rail
2020
HochdruckeinspritzventilenHigh-pressure injectors
2222
Kraftstoffilterfuel
2424
Tankentlüftungtank ventilation
2626
AKFAKF
2828
Leckageleitungleakage line
3030
Rückschlagventilcheck valve
3232
DruckbegrenzungsventilPressure relief valve
3434
RücklaufleitungReturn line
3636
Linieline
3838
Fahrzeugseiteside of the vehicle
4040
Motorseiteengine
4242
DrosselrückschlagventilSpeed Controller

Claims (5)

Kraftstoffversorgung für eine Brennkraftmaschine, insbesondere eines Kraftfahrzeuges, mit einem Niederdrucksystem und einem Hochdrucksystem, wobei das Hochdrucksystem eine Hochdruckpumpe (16) mit wenigstens einem nachgeordneten Hochdruckeinspritzventil (20) und das Niederdrucksystem eine bedarfsgesteuerte Kraftstoffpumpe (12) sowie eine die Kraftstoffpumpe (12) mit der Hochdruckpumpe (16) verbindende Kraftstoffleitung (14) umfaßt, dadurch gekennzeichnet, daß in der Kraftstoffleitung (14) des Niederdrucksystems zwischen Kraftstoffpumpe (12) und Hochdruckpumpe (16) ein Drosselrückschlagventil (42) angeordnet ist, welches bzgl. der Kraftstoffleitung (14) einen kleineren Öffnungsquerschnitt aufweist.Fuel supply for an internal combustion engine, in particular a motor vehicle, with a low-pressure system and a high-pressure system, the high-pressure system comprising a high-pressure pump (16) with at least one downstream high-pressure injection valve (20) and the low-pressure system a demand-controlled fuel pump (12) and a fuel pump (12) with the High-pressure pump (16) connecting fuel line (14), characterized in that in the fuel line (14) of the low-pressure system between the fuel pump (12) and high-pressure pump (16) a throttle check valve (42) is arranged, which with respect to the fuel line (14) has a smaller opening cross-section. Kraftstoffversorgung nach Anspruch 1, dadurch gekennzeichnet, daß die Kraftstoffpumpe (12) eine Einkolbenpumpe ist.Fuel supply according to claim 1, characterized in that the fuel pump (12) is a single-piston pump. Kraftstoffversorgung nach wenigstens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Kraftstoffpumpe (12) an einem Kraftstofftank (10) angeordnet ist.Fuel supply according to at least one of the preceding claims, characterized in that the fuel pump (12) is arranged on a fuel tank (10). Kraftstoffversorgung nach wenigstens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß in der Kraftstoffleitung (14) zwischen Kraftstoffpumpe (12) und Drosselrückschlagventil (42) ein Kraftstoffilter (22) mit Drucksensor angeordnet ist.Fuel supply according to at least one of the preceding claims, characterized in that a fuel filter (22) with a pressure sensor is arranged in the fuel line (14) between the fuel pump (12) and the throttle check valve (42). Kraftstoffversorgung nach wenigstens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Drosselrückschlagventil (42) motorseitig nahe der Hochdruckpumpe (42) angeordnet ist.Fuel supply according to at least one of the preceding claims, characterized in that the throttle check valve (42) is arranged on the engine side near the high-pressure pump (42).
EP03000995A 2002-03-07 2003-01-17 Fuel supply system for an internal combustion engine Expired - Lifetime EP1342912B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10210152A DE10210152A1 (en) 2002-03-07 2002-03-07 Fuel supply for an internal combustion engine
DE10210152 2002-03-07

Publications (3)

Publication Number Publication Date
EP1342912A2 true EP1342912A2 (en) 2003-09-10
EP1342912A3 EP1342912A3 (en) 2006-01-04
EP1342912B1 EP1342912B1 (en) 2011-08-17

Family

ID=27740693

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03000995A Expired - Lifetime EP1342912B1 (en) 2002-03-07 2003-01-17 Fuel supply system for an internal combustion engine

Country Status (3)

Country Link
EP (1) EP1342912B1 (en)
AT (1) ATE520874T1 (en)
DE (1) DE10210152A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005038236A1 (en) * 2003-09-19 2005-04-28 Robert Bosch Gmbh Fuel injection device for an internal combustion engine
WO2007144227A1 (en) * 2006-06-14 2007-12-21 Robert Bosch Gmbh Fuel injection device for an internal combustion engine
DE102011111579A1 (en) 2011-08-20 2013-02-21 Volkswagen Aktiengesellschaft Fluid conveyer system for conveying e.g. gas, to fuel system for internal combustion engine of motor car, has fluid connection made available exclusively over non-return valve for fluid between fluid reservoir and feed pump
CN104141576A (en) * 2013-05-08 2014-11-12 卡特彼勒公司 Modular low pressure fuel system with filtration
US10107241B2 (en) 2014-06-16 2018-10-23 Denso Corporation Valve device and high-pressure pump using the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4231731A1 (en) 1992-01-03 1993-07-08 Walbro Corp PRESSURE FUEL FEEDING SYSTEM
DE19527134A1 (en) 1994-08-08 1996-03-21 Ford Motor Co Fuel guiding device for internal combustion engines

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DE2823734A1 (en) * 1978-05-31 1979-12-06 Bosch Gmbh Robert FUEL CONVEYOR UNIT
US6159383A (en) * 1998-04-17 2000-12-12 Caterpillar Inc. Filter head assembly
DE10005471A1 (en) * 2000-02-08 2001-08-09 Bayerische Motoren Werke Ag Fuel supply system for IC engine has pressure regulator inserted in fuel line with input control pressure for pressure regulator obtained from feedback line leading to fuel tank
US6439199B2 (en) * 2000-04-20 2002-08-27 Bosch Rexroth Corporation Pilot operated throttling valve for constant flow pump
DE10039773A1 (en) * 2000-08-16 2002-02-28 Bosch Gmbh Robert Fuel supply system
DE10115324A1 (en) * 2001-03-28 2002-10-17 Bosch Gmbh Robert Fuel system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4231731A1 (en) 1992-01-03 1993-07-08 Walbro Corp PRESSURE FUEL FEEDING SYSTEM
DE19527134A1 (en) 1994-08-08 1996-03-21 Ford Motor Co Fuel guiding device for internal combustion engines

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005038236A1 (en) * 2003-09-19 2005-04-28 Robert Bosch Gmbh Fuel injection device for an internal combustion engine
WO2007144227A1 (en) * 2006-06-14 2007-12-21 Robert Bosch Gmbh Fuel injection device for an internal combustion engine
US8205596B2 (en) 2006-06-14 2012-06-26 Robert Bosch Gmbh Fuel injection device for an internal combustion engine
DE102011111579A1 (en) 2011-08-20 2013-02-21 Volkswagen Aktiengesellschaft Fluid conveyer system for conveying e.g. gas, to fuel system for internal combustion engine of motor car, has fluid connection made available exclusively over non-return valve for fluid between fluid reservoir and feed pump
CN104141576A (en) * 2013-05-08 2014-11-12 卡特彼勒公司 Modular low pressure fuel system with filtration
US10107241B2 (en) 2014-06-16 2018-10-23 Denso Corporation Valve device and high-pressure pump using the same

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EP1342912A3 (en) 2006-01-04
ATE520874T1 (en) 2011-09-15
DE10210152A1 (en) 2003-09-18
EP1342912B1 (en) 2011-08-17

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