EP1431565A1 - Arrangement of recirculation conduits of a high pressure pump in a fuel feed system of an internal combustion engine - Google Patents
Arrangement of recirculation conduits of a high pressure pump in a fuel feed system of an internal combustion engine Download PDFInfo
- Publication number
- EP1431565A1 EP1431565A1 EP03025166A EP03025166A EP1431565A1 EP 1431565 A1 EP1431565 A1 EP 1431565A1 EP 03025166 A EP03025166 A EP 03025166A EP 03025166 A EP03025166 A EP 03025166A EP 1431565 A1 EP1431565 A1 EP 1431565A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- line
- valve
- tank
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
- F02M37/0041—Means for damping pressure pulsations
-
- 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
-
- 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
-
- 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
- F02M55/007—Venting means
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/31—Fuel-injection apparatus having hydraulic pressure fluctuations damping elements
- F02M2200/315—Fuel-injection apparatus having hydraulic pressure fluctuations damping elements for damping fuel pressure fluctuations
Definitions
- the invention relates to a return line connection of a high pressure pump a fuel supply system for an internal combustion engine the preamble of the first claim.
- the technical environment turns on referred to DE 100 05 589 A1.
- a high-pressure fuel pump is described there, with the interposition of a shut-off valve branches off a leakage line, which in a return line leading into the tank opens and via the small one Leakage quantities of fuel from the high pressure pump are discharged.
- the normally closed shut-off valve is therefore in the leakage line used in the shutdown phase of a direct-injection gasoline engine not cause a rapid drop in pressure in the fuel system and so on to improve the hot start behavior.
- Such a high pressure pump usually has a pressure damper / pressure regulator chamber, from which there is ventilation in the leakage line, too inside the pump, or in the intake air duct is known.
- the object of the invention is a return line connection of a high pressure pump a fuel supply system for an internal combustion engine To provide, which always ensures the full damper / controller function.
- the task is carried out with the characterizing features of the first claim solved. Further embodiments describe the dependent ones Expectations.
- a return line circuit is at least one High pressure pump of a fuel supply system for an internal combustion engine, with a pressure damper ventilation line and a leakage line are led from the high pressure pump to a fuel tank, the Leakage line by means of a valve when the internal combustion engine is not in operation is kept closed is characterized in that the Pressure damper ventilation line by means of an additional valve when not in operation located internal combustion engine connected to a tank ventilation line is.
- a preferred embodiment of the return line circuit is thereby characterized in that the valve and the further valve by a 3/2-way valve are formed, so between the leakage line, tank ventilation line and pressure damper ventilation line that is switched in its an operating position the high-pressure pump-side leakage line to Tank is open while a connection line between the pressure damper ventilation line and tank ventilation line is closed and in in its other operating position the leakage line is interrupted and the Pressure damper ventilation line to the tank ventilation line switched through is.
- Another preferred embodiment of the invention is characterized in that that two high pressure pumps to the valve and the further valve or are connected to the 3/2-way valve.
- This return line circuit is particularly suitable for V-engines.
- FIGS. 1 and 2 Two exemplary embodiments of return line interconnections of high-pressure pumps of fuel supply systems for internal combustion engines are shown in the attached FIGS. 1 and 2 and are explained below:
- Figures 1 and 2 differ only in the number of installed High pressure pumps HDP1 for Figure 1 and HDP1, HDP2 for Figure 2.
- the abbreviations and reference symbols used are otherwise for both Figures identical.
- only the return line circuit is in both figures of the high pressure pumps HDP1, HDP2.
- the complete fuel supply system for the internal combustion engine was waived, this is not part of the invention, but accordingly current state of the art. This includes in particular the indicated by opposite arrows 1, 1 ', 2, 2' only indicated low pressure and high-pressure connection of the high-pressure pumps HDP1, HDP2.
- the high pressure pump HDP1 is also with a pressure damper ventilation line 3 and a leakage line 4 equipped. These lines 3, 4 both lead into the tank 5, the pressure damper ventilation line 3 previously opens into the leakage line 4.
- a switching valve 6 interposed in the leakage line 4 is between the high-pressure pump HDP1 and the connection point of the pressure damper ventilation line 3 a switching valve 6 interposed.
- This switch valve 6 is a 3/2-way valve operating in a position as shown at non-operating internal combustion engine by the high pressure pump HDP1 coming leakage line 4 keeps closed and de-energized at the same time the pressure damper ventilation line 3 to the tank ventilation line 7 switches through.
- the leakage line 4 is switched through and like that Pressure damper ventilation line 3 to tank 5 opened while the connecting line 13 to the tank ventilation line 7 is closed.
- the tank ventilation line shown with the tank ventilation line 7 comprises starting from the tank 5, to the intake system 8 of the internal combustion engine, an activated carbon filter 9, which is vented into the environment 10 and a Tank vent valve 11.
- the leakage line 4 is closed on the high pressure pump side and the tank ventilation line 7 to the pressure damper ventilation line 3 and tank-side leakage line 4 switched through. This means that the Pressure in the fuel system remains. A flooding of the damper chambers the pressure damper 12 with fuel is prevented by ventilation through the Tank ventilation system by adding liquid fuel in the leakage line 4 runs from geodetically higher areas into the lower part and so clears the portion of the leakage line 4 used as a ventilation path.
- Valves instead of the switching valve 6, there are of course also two individual ones, not shown Valves conceivable.
- the Leakage line 4 is then by means of the valve when not in operation Internal combustion engine kept closed and the pressure damper ventilation line 3 is not in operation by means of the additional valve located internal combustion engine connected to the tank ventilation line 7.
- the connecting line 13 blocked to the tank ventilation line 7 and the leakage line 4 switched through to tank 5.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
Abstract
Description
Die Erfindung betrifft eine Rückführleitungsverschaltung einer Hochdruckpumpe einer Kraftstoffversorgungsanlage für eine Brennkraftmaschine nach dem Oberbegriff des ersten Anspruchs. Zum technischen Umfeld wird auf die DE 100 05 589 A1 verwiesen.The invention relates to a return line connection of a high pressure pump a fuel supply system for an internal combustion engine the preamble of the first claim. The technical environment turns on referred to DE 100 05 589 A1.
Dort ist eine Kraftstoffhochdruckpumpe beschrieben, von der unter Zwischenschaltung eines Absperrventils eine Leckageleitung abzweigt, die in eine in den Tank führende Rückführleitung mündet und über die geringe Kraftstoff-Leckmengen der Hochdruckpumpe abgeführt werden.A high-pressure fuel pump is described there, with the interposition of a shut-off valve branches off a leakage line, which in a return line leading into the tank opens and via the small one Leakage quantities of fuel from the high pressure pump are discharged.
Das stromlos geschlossene Absperrventil ist deshalb in die Leckageleitung eingesetzt, um in der Abstellphase eines direkteinspritzenden Ottomotors keinen zu raschen Druckabfall im Kraftstoffsystem herbeizuführen und so das Heißstartverhalten zu verbessern.The normally closed shut-off valve is therefore in the leakage line used in the shutdown phase of a direct-injection gasoline engine not cause a rapid drop in pressure in the fuel system and so on to improve the hot start behavior.
Eine solche Hochdruckpumpe besitzt in der Regel eine Druckdämpfer/Druckreglerkammer, von der eine Belüftung in die Leckageleitung, auch pumpenintern, oder in die Ansaugluftführung bekannt ist. Such a high pressure pump usually has a pressure damper / pressure regulator chamber, from which there is ventilation in the leakage line, too inside the pump, or in the intake air duct is known.
Aufgabe der Erfindung ist es, eine Rückführleitungsverschaltung einer Hochdruckpumpe einer Kraftstoffversorgungsanlage für eine Brennkraftmaschine bereitzustellen, die immer die volle Dämpfer-/Reglerfunktion gewährleistet.The object of the invention is a return line connection of a high pressure pump a fuel supply system for an internal combustion engine To provide, which always ensures the full damper / controller function.
Die Aufgabe wird mit den kennzeichnenden Merkmalen des ersten Anspruchs gelöst. Weitere Ausführungsformen beschreiben die abhängigen Ansprüche.The task is carried out with the characterizing features of the first claim solved. Further embodiments describe the dependent ones Expectations.
Nach der Erfindung ist eine Rückführleitungsverschaltung mindestens einer Hochdruckpumpe einer Kraftstoffversorgungsanlage für eine Brennkraftmaschine, mit der eine Druckdämpferbelüftungsleitung und eine Leckageleitung von der Hochdruckpumpe zu einem Kraftstofftank geführt sind, wobei die Leckageleitung mittels eines Ventils bei nicht in Betrieb befindlicher Brennkraftmaschine verschlossen gehalten wird dadurch gekennzeichnet, dass die Druckdämpferbelüftungsleitung mittels eines weiteren Ventils bei nicht in Betrieb befindlicher Brennkraftmaschine zu einer Tankentlüftungsleitung durchgeschaltet ist.According to the invention, a return line circuit is at least one High pressure pump of a fuel supply system for an internal combustion engine, with a pressure damper ventilation line and a leakage line are led from the high pressure pump to a fuel tank, the Leakage line by means of a valve when the internal combustion engine is not in operation is kept closed is characterized in that the Pressure damper ventilation line by means of an additional valve when not in operation located internal combustion engine connected to a tank ventilation line is.
Wird die Druckdämpfer-/Druckreglerkammer über eine Verbindung zur Tankentlüftungsleitung belüftet, reduziert dies ein Auskondensieren von durch die Druckdämpfer-/Druckreglermembran permeierten Kraftstoffdampfs und verhindert so ein Fluten der Druckdämpfer-/Druckreglerkammer mit Kraftstoff. Dies würde die Dämpfer-/Reglerfunktion negativ beeinflussen und zu starken Druckimpulsen in der Vorlaufleitung führen, die Geräusch und eine Überbeanspruchung des Leitungssystems verursachen würden. Damit jedoch bei einem Defekt der Druckdämpfer-/Druckreglermembran kein flüssiger Kraftstoff in das Tankentlüftungssystem strömt, was relativ schnell zu Kraftstoffaustritt führen würde, ist in der Verbindung zur Tankentlüftungsleitung ein weiteres Ventil integriert, das stromlos offen geschaltet ist. Einströmender Kraftstoff wird über die Leckageleitung in den Tank abgeführt. Damit ist sichergestellt, dass beim Defekt einer Druckdämpfer/Druckreglermembran kein Kraftstoff aus dem System austritt.If the pressure damper / pressure regulator chamber is connected to the Vented tank ventilation line, this reduces condensation fuel vapor permeated through the pressure damper / pressure regulator membrane and thus prevents flooding of the pressure damper / pressure regulator chamber Fuel. This would adversely affect the damper / controller function and lead to strong pressure pulses in the flow line, the noise and would cause an overload on the pipe system. In order to however, if there is a defect in the pressure damper / pressure regulator membrane, no liquid Fuel flows into the tank ventilation system, which increases relatively quickly Leakage of fuel would result in the connection to the tank ventilation line Another valve is integrated, which is open when de-energized. inflowing Fuel is discharged into the tank via the leakage line. In order to ensures that if a pressure damper / pressure regulator membrane is defective no fuel leaks from the system.
Weiter hat das den Vorteil, dass alle Funktionsanforderungen bezüglich Kaltund Heißstartverhalten, Akustik, Vermeidung von Überbelastung des Leitungssystems und Absicherung bei Druckdämpferversagen mit dieser Rückführleitungsverschaltung erfüllt sind.This also has the advantage that all functional requirements regarding cold and Hot start behavior, acoustics, avoidance of overloading the pipe system and protection against pressure damper failure with this return line connection are fulfilled.
Eine bevorzugte Ausführungsform der Rückführleitungsverschaltung ist dadurch gekennzeichnet, dass das Ventil und das weitere Ventil durch ein 3/2-Wegeventil gebildet werden, das so zwischen Leckageleitung, Tankentlüftungsleitung und Druckdämpferbelüftungsleitung geschaltet ist, dass in seiner einen Betriebsstellung die hochdruckpumpenseitige Leckageleitung zum Tank hin geöffnet ist, während eine Verbindungsleitung zwischen Druckdämpferbelüftungsleitung und Tankentlüftungsleitung geschlossen ist und in seiner anderen Betriebsstellung die Leckageleitung unterbrochen und die Druckdämpferbelüftungsleitung zur Tankentlüftungsleitung durchgeschaltet ist.A preferred embodiment of the return line circuit is thereby characterized in that the valve and the further valve by a 3/2-way valve are formed, so between the leakage line, tank ventilation line and pressure damper ventilation line that is switched in its an operating position the high-pressure pump-side leakage line to Tank is open while a connection line between the pressure damper ventilation line and tank ventilation line is closed and in in its other operating position the leakage line is interrupted and the Pressure damper ventilation line to the tank ventilation line switched through is.
Das hat den Vorteil, dass die Motorelektronik nicht mehr zwei Ventile ansteuern muss. Durch die Verwendung eines 3/2-Wegeventils werden weniger Leitungen und wird weniger Bauraum benötigt, außerdem werden Kosten eingespart.This has the advantage that the engine electronics no longer control two valves got to. By using a 3/2-way valve, less Cables and less space is required, moreover, costs saved.
Eine weitere bevorzugte Ausführung der Erfindung ist dadurch gekennzeichnet, dass zwei Hochdruckpumpen an das Ventil und das weitere Ventil oder an das 3/2-Wegeventil angeschlossen sind.Another preferred embodiment of the invention is characterized in that that two high pressure pumps to the valve and the further valve or are connected to the 3/2-way valve.
Diese Rückführleitungsverschaltung eignet sich zum Beispiel besonders für V-Motoren. This return line circuit is particularly suitable for V-engines.
Zwei Ausführungsbeispiele von Rückführleitungsverschaltungen von Hochdruckpumpen von Kraftstoffversorgungsanlagen für Brennkraftmaschinen sind in den beigefügten Figuren 1 und 2 dargestellt und werden im folgenden erläutert:Two exemplary embodiments of return line interconnections of high-pressure pumps of fuel supply systems for internal combustion engines are shown in the attached FIGS. 1 and 2 and are explained below:
Die Figuren 1 und 2 unterscheiden sich ausschließlich in der Anzahl der eingebauten
Hochdruckpumpen HDP1 für Figur 1 und HDP1, HDP2 für Figur 2.
Die verwendeten Abkürzungen und Bezugszeichen sind ansonsten für beide
Figuren identisch. Außerdem ist in beiden Figuren nur die Rückführleitungsverschaltung
der Hochdruckpumpen HDP1, HDP2 dargestellt. Auf eine Darstellung
der kompletten Kraftstoffversorgungsanlage für die Brennkraftmaschine
wurde verzichtet, diese ist nicht Teil der Erfindung, sondern entsprechend
gängigem Stand der Technik ausgeführt. Hierzu gehört speziell die
durch gegenläufige Pfeile 1, 1', 2, 2' nur angedeutet dargestellte niederdruck-
und hochdruckseitige Verschaltung der Hochdruckpumpen HDP1,
HDP2.Figures 1 and 2 differ only in the number of installed
High pressure pumps HDP1 for Figure 1 and HDP1, HDP2 for Figure 2.
The abbreviations and reference symbols used are otherwise for both
Figures identical. In addition, only the return line circuit is in both figures
of the high pressure pumps HDP1, HDP2. For an illustration
the complete fuel supply system for the internal combustion engine
was waived, this is not part of the invention, but accordingly
current state of the art. This includes in particular the
indicated by
In Figur 1 ist die Hochdruckpumpe HDP1 zusätzlich mit einer Druckdämpferbelüftungsleitung
3 und einer Leckageleitung 4 bestückt. Diese Leitungen 3,
4 führen beide in den Tank 5, wobei die Druckdämpferbelüftungsleitung 3
vorher in die Leckageleitung 4 mündet. In die Leckageleitung 4 ist zwischen
der-Hochdruckpumpe HDP1 und der Anschlussstelle der Druckdämpferbelüftungsleitung
3 ein Umschaltventil 6 dazwischengeschaltet. Dieses Umschaltventil
6 ist ein 3/2-Wegeventil, das in einer Stellung, wie dargestellt, bei
nicht in Betrieb befindlicher Brennkraftmaschine, die von der Hochdruckpumpe
HDP1 kommende Leckageleitung 4 stromlos verschlossen hält und
gleichzeitig die Druckdämpferbelüftungsleitung 3 zur Tankentlüftungsleitung
7 durchschaltet. In der anderen, nicht gezeichneten Betriebsstellung des
Umschaltventils 6 ist die Leckageleitung 4 durchgeschaltet und wie die
Druckdämpferbelüftungsleitung 3 zum Tank 5 hin geöffnet, während die Verbindungsleitung
13 zur Tankentlüftungsleitung 7 geschlossen ist. In Figure 1, the high pressure pump HDP1 is also with a pressure
Der dargestellte Tankentlüftungsstrang mit der Tankentlüftungsleitung 7, umfasst,
vom Tank 5 ausgehend, hin zur Sauganlage 8 der Brennkraftmaschine,
einen Aktivkohlefilter 9, der in die Umgebung 10 entlüftet ist und ein
Tankentlüftungsventil 11.The tank ventilation line shown with the
Für Figur 2, dem Ausführungsbeispiel mit zwei Hochdruckpumpen HDP1 und
HDP2, gilt die Beschreibung zur Figur 1 ebenso, mit dem Unterschied, dass
Druckdämpferbelüftungsleitung 3 und Leckageleitung 4 beide Hochdruckpumpen
HDP1 und HDP2 parallel anbinden.For Figure 2, the embodiment with two high pressure pumps HDP1 and
HDP2, the description for FIG. 1 also applies, with the difference that
Pressure
Für beide Figuren gilt, dass wenn das Umschaltventil 6 bestromt ist, das
heißt, die Brennkraftmaschine in Betrieb ist, dann ist die Tankentlüftungsleitung
7 geschlossen und die Leckageleitung 4 durchgeschaltet. Dies bedeutet,
dass der in den Hochdruckpumpen HDP1, HDP2 auftretende Leckagestrom
über die Leckageleitung 4 in den Tank 5 abgeführt wird. Im Falle eines
Defekts eines Druckdämpfers 12 strömt der dort austretende Kraftstoff über
die Leckageleitung 4 in den Tank 5.It applies to both figures that when the
Ist das Umschaltventil 6 unbestromt, das heißt die Brennkraftmaschine ist
außer Betrieb, so ist die Leckageleitung 4 hochdruckpumpenseitig geschlossen
und die Tankentlüftungsleitung 7 zu Druckdämpferbelüftungsleitung 3
und tankseitiger Leckageleitung 4 durchgeschaltet. Dies bedeutet, dass der
Druck im Kraftstoffsystem erhalten bleibt. Ein Fluten der Dämpferkammern
der Druckdämpfer 12 mit Kraftstoff wird verhindert durch Belüftung über das
Tankentlüftungssystem, indem flüssiger Kraftstoff in der Leckageleitung 4
aus geodätisch höheren Bereichen in den tieferliegenden Teil abläuft und so
den als Belüftungspfad genutzten Anteil der Leckageleitung 4 freimacht.If the
Anstatt des Umschaltventils 6 sind natürlich auch zwei einzelne, nicht gezeichnete
Ventile denkbar. Ein Ventil, das die Leckageleitung 4 hochdruckpumpenseitig
vor dem Anschluss der Verbindungsleitung 13 zur Tankentlüftungsleitung
7 sperrt oder freigibt und ein weiteres Ventil, das die Verbindungsleitung
13 zur Tankentlüftungsleitung 7 selbst sperrt oder freigibt. Die
Leckageleitung 4 wird dann mittels des Ventils bei nicht in Betrieb befindlicher
Brennkraftmaschine verschlossen gehalten und die Druckdämpferbelüftungsleitung
3 wird mittels des weiteren Ventils bei nicht in Betrieb
befindlicher Brennkraftmaschine zu der Tankentlüftungsleitung 7 durchgeschaltet.
Bei in Betrieb befindlicher Brennkraftmaschine wird die Verbindungsleitung
13 zur Tankentlüftungsleitung 7 gesperrt und die Leckageleitung
4 zum Tank 5 durchgeschaltet.Instead of the switching
Claims (3)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10259685A DE10259685A1 (en) | 2002-12-19 | 2002-12-19 | Return line connection of a high pressure pump of a fuel supply system for an internal combustion engine |
| DE10259685 | 2002-12-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1431565A1 true EP1431565A1 (en) | 2004-06-23 |
| EP1431565B1 EP1431565B1 (en) | 2005-05-25 |
Family
ID=32336487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03025166A Expired - Lifetime EP1431565B1 (en) | 2002-12-19 | 2003-11-04 | Arrangement of recirculation conduits of a high pressure pump in a fuel feed system of an internal combustion engine |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1431565B1 (en) |
| DE (2) | DE10259685A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0911513A1 (en) * | 1997-10-27 | 1999-04-28 | Mitsubishi Denki Kabushiki Kaisha | Cylinder injection high-pressure fuel pump |
| US5967120A (en) * | 1996-01-16 | 1999-10-19 | Ford Global Technologies, Inc. | Returnless fuel delivery system |
| DE10005589A1 (en) * | 2000-02-09 | 2001-08-16 | Bayerische Motoren Werke Ag | Fuel supply system for an internal combustion engine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8235999U1 (en) * | 1982-12-22 | 1983-06-23 | Gustav Wahler Gmbh U. Co, 7300 Esslingen | VOLUME STORAGE, ESPECIALLY FOR GASEOUS OR LIQUID FUELS |
| DE10125942A1 (en) * | 2001-05-29 | 2002-12-12 | Bosch Gmbh Robert | Fuel system for supplying fuel for an internal combustion engine and internal combustion engine |
-
2002
- 2002-12-19 DE DE10259685A patent/DE10259685A1/en not_active Withdrawn
-
2003
- 2003-11-04 DE DE50300579T patent/DE50300579D1/en not_active Expired - Lifetime
- 2003-11-04 EP EP03025166A patent/EP1431565B1/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5967120A (en) * | 1996-01-16 | 1999-10-19 | Ford Global Technologies, Inc. | Returnless fuel delivery system |
| EP0911513A1 (en) * | 1997-10-27 | 1999-04-28 | Mitsubishi Denki Kabushiki Kaisha | Cylinder injection high-pressure fuel pump |
| DE10005589A1 (en) * | 2000-02-09 | 2001-08-16 | Bayerische Motoren Werke Ag | Fuel supply system for an internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10259685A1 (en) | 2004-07-01 |
| EP1431565B1 (en) | 2005-05-25 |
| DE50300579D1 (en) | 2005-06-30 |
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