DE10210152A1 - Fuel supply for an internal combustion engine - Google Patents
Fuel supply for an internal combustion engineInfo
- Publication number
- DE10210152A1 DE10210152A1 DE10210152A DE10210152A DE10210152A1 DE 10210152 A1 DE10210152 A1 DE 10210152A1 DE 10210152 A DE10210152 A DE 10210152A DE 10210152 A DE10210152 A DE 10210152A DE 10210152 A1 DE10210152 A1 DE 10210152A1
- Authority
- DE
- Germany
- 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.)
- Ceased
Links
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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
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 being a high-pressure pump with at least one a downstream high pressure injector and the low pressure system one Demand-controlled fuel pump and a fuel pump with the High pressure pump connecting fuel line includes, 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. From DE 42 31 731 A1 a fuel supply system is known, in which in a A check valve is arranged around a backward fuel line Flow of fuel from a supply device to a pump is prevented.
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 a fuel supply of the above Type regarding the risk of leakage due to short-term overpressures improve.
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 according to the invention by supplying fuel to the above-mentioned. 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 in the one fuel inlet for High pressure pump forming fuel line arranged a throttle check valve is.
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 tank Single-piston pump.
In einer bevorzugten Ausführungsform ist in der Kraftstoffleitung zwischen Kraftstoffpumpe und Drosselrückschlagventil ein Kraftstoffilter mit Drucksensor angeordnet. In a preferred embodiment is in the fuel line between the fuel pump and throttle check valve arranged a fuel filter with pressure sensor.
Zweckmäßigerweise ist das Drosselrückschlagventil motorseitig nahe der Hochdruckpumpe angeordnet. The throttle check valve is expediently close to the high-pressure pump on the engine side arranged.
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 Figur eine schematisches Funktionsschaltbild einer bevorzugten Ausführungsform einer erfindungsgemäßen Kraftstoffversorgung. Further features, advantages and advantageous configurations of the invention result from the dependent claims, as well as from the following description of the Invention with reference to the accompanying drawings. This shows one in the single figure schematic functional diagram of a preferred embodiment of a fuel supply according to the invention.
Die in der einzigen Figur 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, shown by way of example in the single figure, comprises a fuel tank 10 with a demand-controlled fuel pump 12 , a fuel line 14 which connects the fuel pump 12 to a high-pressure pump 16 with a quantity control valve, and a high-pressure rail 18 , which with 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 18und 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 injection valves 20 form a high pressure system of the 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.
BEZUGSZEICHENLISTE
10 Kraftstofftank
12 Kraftstoffpumpe (tankseitig)
14 Kraftstoffleitung
16 Hochdruckpumpe
18 Hochdruckrail
20 Hochdruckeinspritzventilen
22 Kraftstoffilter
24 Tankentlüftung
26 AKF
28 Leckageleitung
30 Rückschlagventil
32 Druckbegrenzungsventil
34 Rücklaufleitung
36 Linie
38 Fahrzeugseite
40 Motorseite
42 Drosselrückschlagventil
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. REFERENCE SIGN LIST 10 fuel tank
12 fuel pump (tank side)
14 Fuel line
16 high pressure pump
18 high pressure rail
20 high pressure injectors
22 Fuel filter
24 tank ventilation
26 AKF
28 Leakage line
30 check valve
32 pressure relief valve
34 return line
36 line
38 vehicle side
40 engine side
42 One-way flow control valve
Claims (5)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10210152A DE10210152A1 (en) | 2002-03-07 | 2002-03-07 | Fuel supply for an internal combustion engine |
EP03000995A EP1342912B1 (en) | 2002-03-07 | 2003-01-17 | Fuel supply system for an internal combustion engine |
AT03000995T ATE520874T1 (en) | 2002-03-07 | 2003-01-17 | FUEL SUPPLY FOR AN INTERNAL COMBUSTION ENGINE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10210152A DE10210152A1 (en) | 2002-03-07 | 2002-03-07 | Fuel supply for an internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10210152A1 true DE10210152A1 (en) | 2003-09-18 |
Family
ID=27740693
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10210152A Ceased DE10210152A1 (en) | 2002-03-07 | 2002-03-07 | Fuel supply for an internal combustion engine |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1342912B1 (en) |
AT (1) | ATE520874T1 (en) |
DE (1) | DE10210152A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10343482A1 (en) * | 2003-09-19 | 2005-04-14 | Robert Bosch Gmbh | Fuel injection device for a combustion engine has high pressure pump store feedback line and filter between conveyer pump and measuring unit |
DE102006027486A1 (en) | 2006-06-14 | 2007-12-20 | 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 |
US20140331974A1 (en) * | 2013-05-08 | 2014-11-13 | Caterpillar Inc. | Modular Low Pressure Fuel System with Filtration |
JP6119677B2 (en) | 2014-06-16 | 2017-04-26 | 株式会社デンソー | High pressure pump |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19917349A1 (en) * | 1998-04-17 | 1999-11-11 | Caterpillar Inc | Filter head appliance for an internal combustion engine |
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 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2823734A1 (en) * | 1978-05-31 | 1979-12-06 | Bosch Gmbh Robert | FUEL CONVEYOR UNIT |
US5148792A (en) * | 1992-01-03 | 1992-09-22 | Walbro Corporation | Pressure-responsive fuel delivery system |
US5477829A (en) * | 1994-08-08 | 1995-12-26 | Ford Motor Company | Automotive returnless fuel system pressure valve |
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 |
-
2002
- 2002-03-07 DE DE10210152A patent/DE10210152A1/en not_active Ceased
-
2003
- 2003-01-17 EP EP03000995A patent/EP1342912B1/en not_active Expired - Lifetime
- 2003-01-17 AT AT03000995T patent/ATE520874T1/en active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19917349A1 (en) * | 1998-04-17 | 1999-11-11 | Caterpillar Inc | Filter head appliance for an internal combustion engine |
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 |
Non-Patent Citations (1)
Title |
---|
JP 2000265926 A., In: Patent Abstracts of Japan * |
Also Published As
Publication number | Publication date |
---|---|
EP1342912B1 (en) | 2011-08-17 |
ATE520874T1 (en) | 2011-09-15 |
EP1342912A2 (en) | 2003-09-10 |
EP1342912A3 (en) | 2006-01-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8141 | Disposal/no request for examination | ||
8120 | Willingness to grant licences paragraph 23 | ||
8170 | Reinstatement of the former position | ||
8110 | Request for examination paragraph 44 | ||
R016 | Response to examination communication | ||
R002 | Refusal decision in examination/registration proceedings | ||
R003 | Refusal decision now final |
Effective date: 20130528 |