EP1566536A1 - Kraftstoffversorgungssystem und Verfahren zur Regelung der Kraftstoffversorgung - Google Patents
Kraftstoffversorgungssystem und Verfahren zur Regelung der Kraftstoffversorgung Download PDFInfo
- Publication number
- EP1566536A1 EP1566536A1 EP05002223A EP05002223A EP1566536A1 EP 1566536 A1 EP1566536 A1 EP 1566536A1 EP 05002223 A EP05002223 A EP 05002223A EP 05002223 A EP05002223 A EP 05002223A EP 1566536 A1 EP1566536 A1 EP 1566536A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- pressure
- line
- internal combustion
- combustion engine
- 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
- 239000000446 fuel Substances 0.000 title claims abstract description 197
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000002485 combustion reaction Methods 0.000 claims abstract description 49
- 239000002828 fuel tank Substances 0.000 claims abstract description 8
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 2
- 230000001276 controlling effect Effects 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
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
- F02M37/04—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
- F02M37/106—Feeding by means of driven pumps electrically driven submerged in fuel, e.g. in reservoir the pump being installed in a sub-tank
-
- 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
- F02M37/02—Feeding by means of suction apparatus, e.g. by air flow through carburettors
- F02M37/025—Feeding by means of a liquid fuel-driven jet pump
Definitions
- the invention relates to a fuel supply system for supplying a Internal combustion engine, in particular of a motor vehicle, with fuel and a method for controlling the fuel supply of an internal combustion engine.
- the object of the invention is to provide a compact fuel supply system and a method for controlling the fuel supply of an internal combustion engine to provide, respectively, when starting the internal combustion engine a reliable Ensuring fuel supply.
- the fuel supply system for supplying a Internal combustion engine with fuel has an electric fuel pump, the a fuel tank, for example one half of a saddle tank assigned and in particular within the fuel tank or the saddle tank half is arranged.
- a fuel line leads to the internal combustion engine.
- a Return line for returning fuel to the fuel pump connected.
- the recycled through the return line Fuel to the tank half of a saddle tank to which the fuel pump is assigned, returned and / or to a swirl pot, which the Fuel pump is assigned.
- With the fuel line is a derivative connected to supply the fuel pump one or more in the Fuel tank arranged to operate Saugstrahlpumpen.
- the fuel supply system has a pressure control system that both the Connection of the derivative with the fuel line as well as the connection of Return line with the fuel line controls.
- the pressure control system opens, or closes the connection of the derivative to the fuel line at a first Pressure and opens, or closes the connection of the return line with the Fuel line at a second pressure, wherein the pressure control system the Discharge and the return line with increasing pressure opens and at falling pressure closes.
- the fuel supply system according to the invention can thus be designed very compact.
- the starting process of the Internal combustion engine with the aid of the invention Fuel supply system so fast that the particular in Baffle existing fuel is sufficient to start even without to accomplish the operation of a suction jet pump.
- the drain is opened for operation of the suction jet pump, before the return line is opened.
- the first print in which the Connection of the derivative to the fuel line is opened, so is lower as the second pressure, in which the connection of the return line with the Fuel line is opened so that the pressure control system different Operating pressures to branch fuel from the fuel line.
- the pressure control system with the Derivative connected first pressure regulator and one with the return line connected second pressure regulator.
- the pressure regulators are in particular mechanical pressure regulator, such. B. check valves that at a certain Pressure, d. H. at the first pressure, or the second pressure to be actuated and the discharge, or return line in particular with a throughput open or close the proportional characteristic.
- B. check valves that at a certain Pressure, d. H. at the first pressure, or the second pressure to be actuated and the discharge, or return line in particular with a throughput open or close the proportional characteristic.
- the pressure control system may have a 3/3-way valve on the input side with the fuel line and on the output side with each the return line and the derivative is connected.
- a first Switching state of the 3/3-way valve are both the derivative and the Return line disconnected from the fuel line.
- a second Switching state in which the 3/3-way valve switches at the first pressure, the drain is connected to the fuel line while the Return line remains closed.
- the 3/3-way valve switches in a third switching state, in which both the derivative as also the return line are connected to the fuel line. If the first Pressure and the second pressure have the same amount, can also be a valve with only two switching states, d. H.
- a 3/2-way valve can be used at in a first switching state, the derivative with the return line are separated and in the second switching state, both the derivative and the return line are connected to the fuel line.
- the pressure control system can be very compact and designed to save space.
- Pressure control system preferably connected to a pressure measuring device, through which the pressure control system is controlled.
- the Control of the pressure control system the pressure of the fuel line measured, so that the first pressure and the second pressure are pressures of the Fuel line is.
- the pressure measurement is preferably hydraulic, for example via a pressure measuring system with a baffle plate or the like.
- the fuel line to a pressure-holding valve.
- the Pressure-holding valve is in particular as close as possible to the fuel pump arranged.
- the pressure-maintaining valve closes directly to the Fuel pump, so that the pressure-holding valve between the fuel pump and the fuel line is arranged.
- the pressure holding valve is achieved that after switching off the internal combustion engine as possible large part of the fuel line is filled with fuel, which is a pressure of has more than 1 bar.
- the fuel line is not only for Conveying fuel but also used for storing fuel because the fuel in the fuel line has a pressure, even without a Conveying the fuel pump to supply the internal combustion engine is sufficient.
- another pressure-holding valve for example a retention valve, be provided to the area of the fuel line, which also after the Turning off the engine is under increased pressure, exactly to be able to define.
- the invention further relates to a method for controlling the fuel supply an internal combustion engine, through the particularly simple an improved Starting behavior of a particular arranged in a motor vehicle Internal combustion engine is achieved.
- the internal combustion engine started. With the start of the Internal combustion engine becomes the Bennkraftmaschine from a fuel having a fuel line connected to a fuel pump, provided. Thereafter, with the help of the fuel pump in the fuel Promoted fuel line. By pumping the fuel pump rises Pressure in the fuel line. Subsequently, a previously closed Discharge opened with the fuel line and at least one Suction jet pump is connected. The opening of the derivative takes place at a first pressure, which is chosen so that the internal combustion engine starts safely.
- the pressure in the discharge increases in particular through the resistance of the suction jet nozzle (s) until the discharge pressure in Is substantially equal to the second pressure.
- a previously closed return line which is connected to the fuel line is and returns fuel to the fuel pump. Opening the Return line is at a second pressure, which is the design pressure, d. H. the operating pressure of the internal combustion engine is. If the first pressure and the second pressure is identical, the opening of the derivative and the Return line at the same time.
- the first pressure lower than the second pressure, so that the Drain is opened before the return line.
- the Fuel line preferably when starting the internal combustion engine pressure of more than 1 bar. It will be so before starting the engine in the fuel line provided a pressure of more than 1 bar.
- the internal combustion engine switched off.
- the electrical Fuel pump is no longer supplied with electricity, the pressure drops in the Fuel line off.
- the return line at the second Pressure closed.
- the derivative becomes closed. If the first pressure and the second pressure should be identical, the return line and the drain are closed simultaneously.
- the closure of the derivative takes place in particular the process step that the Fuel line is closed by means of a pressure holding valve. Thereby the pressure in the fuel line remains slightly lower than the first one Pressure is exist.
- Particularly preferred is for the inventive Method as above-described fuel supply system used.
- Fuel supply system is an electric fuel pump 10 within a surge pot 12 is arranged in a tank 14, the tank 14 in the illustrated embodiment is a saddle tank.
- the fuel pump 10 is connected via a pressure-maintaining valve 16 to a fuel line 18, the an internal combustion engine 20 leads.
- a Return line 22 connected to the part of the fuel pump 10th subsidized fuel in the swirl pot 12 leads back. By doing that Part of the pumped fuel is conveyed in a circle, the cooling of the Fuel pump 10 improved.
- With the fuel line 18 is also a Discharge 24 connected via which a part of the pumped fuel to a Suction jet pump 26 is promoted.
- the derivative 24 can be opened by means of a first pressure regulator 28 or getting closed.
- the first pressure regulator 28 is at a first pressure actuated, wherein at an increasing pressure in the fuel line 10 the Open connection to the drain 24 and a falling pressure in the Fuel line 18 is closed.
- the return line 22 a second pressure regulator 30, the connection between the Return line 23 and the fuel line 18 opens at a second pressure or closes.
- a rising pressure in the fuel line 18 is the Connection of the return line 22 to the fuel line 18 is open and at a decreasing pressure in the fuel line 18 is closed.
- a second embodiment (Fig. 2), the drain 24 and the Return line 22 via a common intermediate line 32 with the Fuel line 18 connected.
- the intermediate line 32 leads to a Branching 34 in the derivative 24 and the return line 22 of the Intermediate line 32 are connected.
- the first pressure regulator 28 by a first check valve 36 and the second pressure regulator 30 through a second check valve 38th educated.
- the check valves 36, 38 are in particular designed such the check valve 36 opens at a lower pressure than the second one Check valve 38.
- a third embodiment of the fuel supply system in comparison to the illustrated in Fig. 2 fuel supply system the Check valves 36, 38 and the branch 34 through a 3/3-way valve 40 replaced.
- On an input side 42 of the 3/3-way valve 40 is the Interconnect 32 connected and at an output side 44 of the 3/3 Route system 40 are the derivative 24 and the return line 24th connected.
- a first switching state 46 the derivative 24 and the Return line 22 closed.
- a second switching state is the Lead 24 open, d. H. connected to the fuel line 18 while the Return line 22 is closed.
- a third switching state 50 are both the derivative 24 and the return line 22 is opened and with the Fuel line 18 connected.
- the individual switching states 46, 48, 50 starting at the first switching state 46 through by at of the embodiment shown in FIG. 3, the 3/3-way valve 40 in the direction of the arrow 52 is moved.
- the individual switching states 46, 48, 50 starting at the third Switching state 50 by passing the 3/3-way valve 40 in the direction of Arrow 54 is moved.
- a Pressure measuring device 56 is provided which, depending on the in the Fuel line 18 measured pressure the individual switching states 46, 48, 50th controls.
- the fuel supply system thus has Pressure control system 58, which in the first embodiment (Fig two pressure regulators 28, 30, a second embodiment (Fig. 3) through the Branching 34 and the check valves 36, 38 and in the third Embodiment (Fig. 3) is formed by the 3/3-way valve 40.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Description
- Fig. 1
- zeigt ein erfindungsgemäßes Kraftstoffversorgungssystem in einer ersten Ausführungsform.
- Fig. 2
- zeigt das Kraftstoffversorgungssystem in einer zweiten Ausführungsform und
- Fig. 3
- zeigt das Kraftstoffversorgungssystem in einer dritten Ausführungsform.
Claims (13)
- Kraftstoffversorgungssystem zur Versorgung einer Brennkraftmaschine (20) mit Kraftstoff, miteiner einem Kraftstofftank (14) zugeordneten elektrischen Kraftstoffpumpe (10),einer mit der Kraftstoffpumpe (10) verbundenen, zur Brennkraftmaschine (20) führenden Kraftstoffleitung (18),einer mit der Kraftstoffleitung (18) verbundenen Rückführleitung (22) zur Rückfuhr von Kraftstoff zu der Kraftstoffpumpe (10) hin,einer mit der Kraftstoffleitung (18) verbundenen Ableitung (24) zum Betrieb einer in dem Kraftstofftank (14) angeordneten Saugstrahlpumpe (26) undeinem Druckregelsystem (58), das bei einem ersten Druck die Verbindung der Ableitung (24) zur Kraftstoffleitung (18) öffnet bzw. schließt und bei einem zweiten Druck die Verbindung der Rückführleitung (22) mit der Kraftstoffleitung (18) öffnet bzw. schließt, wobei das Druckregelsystem (58) die Ableitung (24) und die Rückführleitung (22) bei ansteigendem Druck öffnet und bei abfallendem Druck schließt.
- Kraftstoffversorgungssystem nach Anspruch 1 dadurch gekennzeichnet, dass das Druckregelsystem (58) einen mit der Ableitung (24) verbundenen ersten, insbesondere mechanischen Druckregler (28) und einen mit der Rückführleitung (22) verbundenen zweiten, insbesondere mechanischen Druckregler (30) aufweist.
- Kraftstoffversorgungssystem nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Druckregelsystem (58) ein 3/3-Wege-Ventil (40) aufweist, das eingangsseitig (42) mit der Kraftstoffleitung (18) und ausgangsseitig (44) jeweils mit der Rückführleitung (22) und mit der Ableitung (24) verbunden ist.
- Kraftstoffversorgungssystem nach einem der Ansprüche 1 - 3, dadurch gekennzeichnet, dass der erste Druck niedriger als der zweite Druck ist.
- Kraftstoffversorgungssystem nach einem der Ansprüche 1 - 4, dadurch gekennzeichnet, dass das Druckregelsystem (58) mit einer Druckmesseinrichtung (56) verbunden ist, das zur Steuerung des Druckregelsystems (58) den Druck insbesondere der Kraftstoffleitung (18) misst.
- Kraftstoffversorgungssystem nach einem der Ansprüche 1 - 5, dadurch gekennzeichnet, dass die Kraftstoffleitung (18) insbesondere möglichst nahe an der Kraftstoffpumpe (10) ein Druckhalteventil (16) aufweist.
- Kraftstoffversorgungssystem nach einem der Ansprüche 1 - 6, dadurch gekennzeichnet, dass die Kraftstoffpumpe (10) in einem Schwalltopf (12) angeordnet ist, in den die Ableitung (24) und die Rückführleitung (22) fördern.
- Verfahren zur Regelung der Kraftstoffversorgung einer Brennkraftmaschine (20) mit den Schritten:Starten der Brennkraftmaschine (20),Versorgen der Brennkraftmaschine (20) aus einer Kraftstoff aufweisenden mit einer Kraftstoffpumpe (10) verbundenen Kraftstoffleitung (18),Fördern von Kraftstoff in die Kraftstoffleitung (18) mit Hilfe der Kraftstoffpumpe (10),Öffnen einer zuvor verschlossenen, mit der Kraftstoffleitung (18) und einer Saugstrahlpumpe (26) verbundenen Ableitung (24), bei einem ersten Druck undÖffnen einer zuvor verschlossenen, mit der Kraftstoffleitung (18) verbundenen Rückführleitung (22) zur Rückfuhr von Kraftstoff zu der Kraftstoffpumpe (10) hin bei einem zweiten Druck.
- Verfahren nach Anspruch 8, bei welchen der Kraftstoff in der Kraftstoffleitung (18) beim Starten der Brennkraftmaschine (20) einen Druck von mehr als 1bar aufweist.
- Verfahren nach Anspruch 8 oder 9, bei welchem der erste Druck niedriger als der zweite Druck ist.
- Verfahren nach einem der Ansprüche 8 - 10 bei welchem nach dem Öffnen der Rückführleitung (22) die SchritteAusschalten der Brennkraftmaschine (20),Schließen der Rückführleitung (22) bei dem zweiten Druck undSchließen der Ableitung (24) bei dem ersten Druck erfolgen.
- Verfahren nach Anspruch 11 bei welchem nach dem Schließen der Ableitung (24) der SchrittSchließen der Kraftstoffleitung (18) mit Hilfe eines Druckhalteventils (16) erfolgt.
- Verfahren nach einem der Ansprüche 8 - 12, bei welchem ein Kraftstoffversorgungssystem nach einem der Ansprüche 1 - 7 verwendet wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004007878 | 2004-02-18 | ||
DE102004007878A DE102004007878A1 (de) | 2004-02-18 | 2004-02-18 | Kraftstoffversorgungssystem und Verfahren zur Regelung der Kraftstoffversorgung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1566536A1 true EP1566536A1 (de) | 2005-08-24 |
EP1566536B1 EP1566536B1 (de) | 2007-04-11 |
Family
ID=34706832
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05002223A Active EP1566536B1 (de) | 2004-02-18 | 2005-02-03 | Kraftstoffversorgungssystem und Verfahren zur Regelung der Kraftstoffversorgung |
Country Status (3)
Country | Link |
---|---|
US (1) | US7278404B2 (de) |
EP (1) | EP1566536B1 (de) |
DE (2) | DE102004007878A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1803925A1 (de) * | 2005-12-28 | 2007-07-04 | Denso Corporation | Kraftstofffördervorrichtung mit Ansaugfilter |
WO2007115102A2 (en) | 2006-03-29 | 2007-10-11 | Robert Bosch Gmbh | Fuel system with pressure regulation and pressure relief |
WO2007135149A1 (de) * | 2006-05-24 | 2007-11-29 | Continental Automotive Gmbh | Saugstrahlpumpe |
DE10259808B4 (de) * | 2001-12-21 | 2016-01-14 | Ti Automotive Fuel Systems Sas | Strahlpumpe |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004049286A1 (de) * | 2004-10-09 | 2006-04-20 | Robert Bosch Gmbh | Vorrichtung zum Fördern von Kraftstoff |
DE102005000731A1 (de) * | 2005-01-04 | 2006-07-13 | Siemens Ag | Kraftstoffversorgungsanlage für ein Kraftfahrzeug |
FR2890341B1 (fr) * | 2005-09-02 | 2008-10-24 | Inergy Automotive Systems Res | Systeme a carburant comprenant une reserve a carburant et un bac de retention |
JP4575464B2 (ja) * | 2007-03-26 | 2010-11-04 | 本田技研工業株式会社 | 車両用燃料供給装置 |
US7568471B2 (en) * | 2007-09-28 | 2009-08-04 | Gm Global Technology Operations, Inc. | Diesel fuel injection priming system |
DE102008001240A1 (de) * | 2007-11-13 | 2009-05-14 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Steuerung eines Kraftstoffversorgungssystems |
US8820298B2 (en) * | 2009-12-07 | 2014-09-02 | Denso International America, Inc. | Passive and semi-active diesel and gasoline fuel module |
US9097217B2 (en) * | 2011-08-31 | 2015-08-04 | Gm Global Technology Operations. Llc | Propulsion systems and modules for vehicles |
DE102013212267A1 (de) * | 2013-06-26 | 2014-12-31 | Robert Bosch Gmbh | Kraftstoff-Fördersystem mit Teildruckentlastungsventil an Treibleitung einer Saugstrahlpumpe |
US9523334B2 (en) * | 2014-03-05 | 2016-12-20 | Hyundai Motor Company | System and method of controlling fuel supply of diesel engine |
DE102016217800B4 (de) * | 2016-09-16 | 2021-12-23 | Vitesco Technologies GmbH | Fluidfördervorrichtung |
EP3403864B1 (de) * | 2017-05-18 | 2020-01-08 | Ningbo Geely Automobile Research & Development Co., Ltd. | Kraftstoffejektoranordnung für ein fahrzeug |
DE102018208314A1 (de) * | 2018-05-25 | 2019-11-28 | Bayerische Motoren Werke Aktiengesellschaft | Ansaugkammer für eine Betriebsmittelpumpe, Betriebsmittelpumpe sowie Betriebsmittelbehälter |
DE102018208316A1 (de) * | 2018-05-25 | 2019-11-28 | Bayerische Motoren Werke Aktiengesellschaft | Ansaugkammer für eine Betriebsmittelpumpe, Betriebsmittelpumpe sowie Betriebsmittelbehälter |
US11434931B2 (en) * | 2020-09-23 | 2022-09-06 | Delphi Technologies Ip Limited | Fuel system having a valve upstream of a jet pump |
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EP1152142A2 (de) * | 2000-05-05 | 2001-11-07 | Bayerische Motoren Werke Aktiengesellschaft | Kraftstoff-Versorgungssystem für eine mit Kraftstoffdirekteinspritzung arbeitende Brennkraftmaschine |
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DE10303390A1 (de) * | 2003-01-29 | 2004-08-05 | Robert Bosch Gmbh | Vorrichtung zum Fördern von Kraftstoff aus einem Vorratsbehälter zur Brennkraftmaschine eines Kraftfahrzeugs |
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-
2004
- 2004-02-18 DE DE102004007878A patent/DE102004007878A1/de not_active Ceased
-
2005
- 2005-01-18 US US11/037,940 patent/US7278404B2/en not_active Expired - Fee Related
- 2005-02-03 DE DE502005000563T patent/DE502005000563D1/de active Active
- 2005-02-03 EP EP05002223A patent/EP1566536B1/de active Active
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10259808B4 (de) * | 2001-12-21 | 2016-01-14 | Ti Automotive Fuel Systems Sas | Strahlpumpe |
EP1803925A1 (de) * | 2005-12-28 | 2007-07-04 | Denso Corporation | Kraftstofffördervorrichtung mit Ansaugfilter |
WO2007115102A2 (en) | 2006-03-29 | 2007-10-11 | Robert Bosch Gmbh | Fuel system with pressure regulation and pressure relief |
WO2007115102A3 (en) * | 2006-03-29 | 2008-01-24 | Bosch Gmbh Robert | Fuel system with pressure regulation and pressure relief |
US7469683B2 (en) | 2006-03-29 | 2008-12-30 | Robert Bosch Gmbh | Fuel system with pressure regulation and pressure relief |
WO2007135149A1 (de) * | 2006-05-24 | 2007-11-29 | Continental Automotive Gmbh | Saugstrahlpumpe |
Also Published As
Publication number | Publication date |
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EP1566536B1 (de) | 2007-04-11 |
DE502005000563D1 (de) | 2007-05-24 |
US7278404B2 (en) | 2007-10-09 |
US20050178367A1 (en) | 2005-08-18 |
DE102004007878A1 (de) | 2005-09-15 |
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