WO2011029662A1 - Fuel system having a reduced number of components made of materials acting catalytically on the fuel - Google Patents
Fuel system having a reduced number of components made of materials acting catalytically on the fuel Download PDFInfo
- Publication number
- WO2011029662A1 WO2011029662A1 PCT/EP2010/060934 EP2010060934W WO2011029662A1 WO 2011029662 A1 WO2011029662 A1 WO 2011029662A1 EP 2010060934 W EP2010060934 W EP 2010060934W WO 2011029662 A1 WO2011029662 A1 WO 2011029662A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fuel
- tank
- components
- catalytically active
- active material
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/03177—Fuel tanks made of non-metallic material, e.g. plastics, or of a combination of non-metallic and metallic material
-
- 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
- F02M37/0076—Details of the fuel feeding system related to the fuel tank
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/40—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using bands or wires as transmission elements
- G01F23/44—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using bands or wires as transmission elements using electrically actuated indicating means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
- G01F23/68—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using electrically actuated indicating means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
- G01F23/68—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using electrically actuated indicating means
- G01F23/683—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using electrically actuated indicating means using electromechanically actuated indicating means
Definitions
- the invention is based on a fuel system according to the preamble of claim 1 and of a component of such a fuel system according to the preamble of claim 7. It is known that certain materials, such as e.g. Copper, a more or less strong catalytic effect on the rate of aging or the
- Tank level sensors inside the tank are often designed as copper sliding contacts that are in contact with the fuel.
- the three main drivers of fuel aging are oxygen, temperature and catalytic materials. Of this, oxygen is a necessary condition.
- the temperature and the presence of catalytically active materials are acceleration factors.
- the stoppage phase is responsible for the aging of the fuel, since the fuel is partly burned during operation and partly exposed to a temperature increase (compared to standstill) only for a short time.
- the temperature of the fuel can be influenced only slightly; The more importance is therefore attributable to catalytically active materials.
- At least the tank and / or the components provided in the tank of catalytically active material are insulated from the fuel or outside the tank.
- the fuel tank and / or the components of the fuel system which do not have a catalytic effect for the fuel can be formed completely from the non-catalytically active material or have a coating of the non-catalytically active material.
- the components may be provided in the tank or in the region of the tank, alternatively or additionally also elsewhere between the fuel tank and the combustion chamber.
- some components in the tank and other components in a fuel line may be provided.
- the cable tail and plug are placed outside the fuel-loaded area. Exposed copper contact areas in the fuel are overmolded or coated with non-catalytic material.
- Previously lying in the fuel components are moved to the outside in a non-fuel contact area.
- a previously arranged in the tank tank level sensor with the exception of a float out of the tank can be routed outwards.
- the fuel system 1 shown schematically in the figure comprises a fuel tank 2, an injection nozzle 5 protruding into the combustion chamber 3 of an internal combustion engine 4 for injecting fuel, a fuel line 6 extending from the fuel tank 2 to the injection nozzle 5, and a fuel pump (conveying or high-pressure pump) 7, the fuel from the tank 2 to the injection nozzle 5 promotes.
- a tank level sensor 8 is provided which forwards a level-dependent electrical signal via a cable 9 to a controller (not shown).
- the fuel-contacting components provided in the tank 2 are made of a material catalytically active for the fuel, such as e.g. Copper, brass or bronze, isolated from the fuel, so provided with an appropriate coating to prevent the direct contact between fuel and the catalytic material.
- the tank housing 10 consists of catalytically active material
- the tank housing 10 is coated on the inside with a non-catalytically active coating (for example plastic) 11.
- a non-catalytically active material for the fuel may be replaced by components of a non-catalytically active material (metal, plastic, ceramic, etc.).
- Tankstandgeber 8 can be moved with all its components consisting of catalytically active material from the tank 2 out to the outside, as indicated in the figure with 8 ', and only one of non-catalytic material existing float. 8 "remain within the tank 2 and be connected by means of an insulated cable with the outsourced components of the Tankstandgebers 8 '.
- the fuel lines 6 extending between the tank 2 and the combustion chamber 3 are either provided with a non-catalytically active inner coating (eg plastic) in the event that they consist of a material which acts catalytically for the fuel, and thereby isolated from the fuel, or consist of a non-catalytic material.
- a non-catalytically active inner coating eg plastic
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Catalysts (AREA)
Abstract
Description
Kraftstoffsvstem mit reduzierter Anzahl an Komponenten aus katalvtisch auf den Fuel system with reduced number of components from catalvt to the
Kraftstoff wirkenden Materialien Fuel-acting materials
Die Erfindung geht aus von einem Kraftstoff System nach der Gattung des Anspruchs 1 und von einer Komponente eines solchen Kraftstoffsystems nach der Gattung des Anspruchs 7. Es ist bekannt, dass bestimmte Materialien, wie z.B. Kupfer, einen mehr oder weniger starken katalytischen Einfluss auf die Alterungsgeschwindigkeit bzw. den The invention is based on a fuel system according to the preamble of claim 1 and of a component of such a fuel system according to the preamble of claim 7. It is known that certain materials, such as e.g. Copper, a more or less strong catalytic effect on the rate of aging or the
Verbrauch der Alterungsreserve von Dieselkraftstoffen haben (im Folgenden zur sprachlichen Vereinfachung nur noch als Alterung bezeichnet). Gealterter Kraftstoff führt nach kurzer und abhängig von der Robustheit des Systems unterschiedlicher Nutzungsdauer (Betriebszeit und Stillstandszeit) zum sicheren Ausfall des Einspritzsystems. Mit steigendem Biodieselanteil und höherer Entschwefelung verringert sich diese Zeitdauer (Verweildauer im Tank) bis zu derjenigen, bei der Kraftstoff als ungealtert definiert wird. Neben Sauerstoff (notwendiges Kriterium) und Temperatur (beschleunigender Parameter) sind katalytische Materialien ein weiterer sehr starker (deutlich stärker als Temperatur) beschleunigender Parameter der Kraftstoffalterung. Consumption of the aging reserve of diesel fuels (hereinafter referred to as linguistic simplification only as aging). Aged fuel leads to a safe failure of the injection system after a short and depending on the robustness of the system of different service life (operating time and downtime). With increasing Biodieselanteil and higher desulfurization reduces this period of time (retention time in the tank) to that at which fuel is defined as unaged. In addition to oxygen (required criterion) and temperature (accelerating parameter), catalytic materials are another very strong (much stronger than temperature) accelerating parameter of fuel aging.
Folgende Komponenten sind bei bekannten Kraftstoffsystemen üblicherweise aus stark katalytisch wirksamem Kupfer und tragen daher zur beschleunigten Alterung des Kraftstoffes bei: The following components are in known fuel systems usually from highly catalytically active copper and therefore contribute to the accelerated aging of the fuel in:
- Tankstandgeber innerhalb des Tanks sind oft als kupferne Schleifkontakte ausgeführt, die in Kontakt mit dem Kraftstoff stehen. - Tank level sensors inside the tank are often designed as copper sliding contacts that are in contact with the fuel.
- Elektrokraftstoffpumpen: Im Dieselbereich sind kupferfreie Kommutatoren eigentlich Standard, jedoch bestehen Kommutatorbürsten und Leiterbahnen zur Kon- taktierung oft aus Kupfer bzw. aus anderen für Kraftstoff katalytischen Materialien. - Electric fuel pumps: In the diesel sector, copper-free commutators are actually standard, but commutator brushes and printed conductors are used often made of copper or other fuel-catalytic materials.
- Kabelanschlüsse im Tank bestehen oft aus abisolierten Kupferleitungen, auf die entsprechende Stecker gecrimpt werden, wodurch ein direkter Kraftstoffkontakt mit Kupfer gegeben ist. - Cable connections in the tank are often made of stripped copper wires, crimped onto the corresponding plugs, giving direct fuel contact with copper.
- Dichtringe etc. aus Kupfer. - Sealing rings etc. made of copper.
Dabei sind bereits sehr kleine Oberflächen aus katalytisch wirkendem Material schädlich. So reicht bereits ein normales Kabel zum elektrischen Anschluss eines innerhalb des Tank vorgesehenen Bauteils („Intankeinheit") aus, welches am Ende zum Ancrimpen abisoliert ist, um durch das nun freiliegende Kupferkabelende eine signifikante Alterungsbeschleunigung im Kraftstoff hervorzurufen. Auch zeigen Feldbeanstandungen von Fahrzeugen, die längere Zeit als Gebrauchtwagen beim Händler stehen, dass dort das katalytisch stark wirksame Kupfer zur beschleunigten Alte- rung des Kraftstoffes geführt hat. Even very small surfaces of catalytically active material are harmful. Thus, even a normal cable is sufficient for the electrical connection of a provided within the tank component ("Intanke unit"), which is stripped to crimp at the end, to cause by the now exposed copper cable end a significant aging acceleration in the fuel also show field complaints of vehicles For a longer period of time than used cars are available from the dealer, where the catalytically highly effective copper has led to accelerated aging of the fuel.
Es ist demgegenüber die Aufgabe der Erfindung, die Alterung von Kraftstoff im Fahrzeug auf einen minimalen Wert zu reduzieren. It is the object of the invention to reduce the aging of fuel in the vehicle to a minimum value.
Vorteile der Erfindung Advantages of the invention
Die drei Haupttreiber der Kraftstoffalterung sind Sauerstoff, Temperatur und katalyti- sche Materialien. Davon ist Sauerstoff eine notwendige Bedingung. Die Temperatur und das Vorhandensein katalytisch wirkender Materialien sind Beschleunigungsfaktoren. In einem Fahrzeug ist nahezu ausschließlich die Stillstandsphase für die Alterung des Kraftstoffes verantwortlich, da der Kraftstoff im Betrieb zum einen Teil verbrannt wird und zum anderen Teil nur kurzzeitig (im Vergleich zum Stillstand) einer Temperaturerhöhung ausgesetzt ist. In der Stillstandsphase kann die Temperatur des Kraftstoffes nur wenig beeinflusst werden; umso mehr Bedeutung kommt daher katalytisch wirksamen Materialien zu. The three main drivers of fuel aging are oxygen, temperature and catalytic materials. Of this, oxygen is a necessary condition. The temperature and the presence of catalytically active materials are acceleration factors. In a vehicle, almost exclusively the stoppage phase is responsible for the aging of the fuel, since the fuel is partly burned during operation and partly exposed to a temperature increase (compared to standstill) only for a short time. In the standstill phase, the temperature of the fuel can be influenced only slightly; The more importance is therefore attributable to catalytically active materials.
Erfindungsgemäß sind zumindest der Tank und/oder die im Tank vorgesehenen Komponenten aus katalytisch wirkendem Material gegenüber dem Kraftstoff isoliert oder außerhalb des Tanks angeordnet. Im ersteren Fall können der Kraftstofftank und/oder die ein für den Kraftstoff nicht katalytisch wirkendes Material aufweisenden Komponenten des Kraftstoff Systems vollständig aus dem nicht katalytisch wirkenden Material gebildet sein oder eine Beschichtung aus dem nicht katalytisch wirkenden Material aufweisen. According to the invention, at least the tank and / or the components provided in the tank of catalytically active material are insulated from the fuel or outside the tank. In the former case, the fuel tank and / or the components of the fuel system which do not have a catalytic effect for the fuel can be formed completely from the non-catalytically active material or have a coating of the non-catalytically active material.
Die Komponenten können im Tank oder im Bereich des Tanks, alternativ oder zusätzlich auch an anderer Stelle zwischen Kraftstofftank und Brennraum vorgesehen sein. So können beispielsweise einige Komponenten im Tank und andere Kompo- nenten in einer Kraftstoffleitung vorgesehen sein. The components may be provided in the tank or in the region of the tank, alternatively or additionally also elsewhere between the fuel tank and the combustion chamber. For example, some components in the tank and other components in a fuel line may be provided.
Durch diese konsequente Eliminierung von katalytisch wirkenden Materialen mit Kraftstoffkontakt wird die Alterungsgeschwindigkeit von Dieselkraftstoff im Fahrzeug deutlich reduziert. Erfindungsgemäße Maßnahmen zur Eliminierung der katalytisch wirkenden Materialen sind beispielsweise: This consistent elimination of catalytically active materials with fuel contact significantly reduces the rate of aging of diesel fuel in the vehicle. Inventive measures for the elimination of the catalytically active materials are, for example:
- Bei Bauteilen, die einen Kabelschwanz mit Stecker aufweisen, werden Kabelschwanz und Stecker außerhalb des kraftstoffbeaufschlagten Bereiches angeordnet. Im Kraftstoff liegende, freiliegende Kontaktbereiche aus Kupfer werden mit nicht-katalytischem Material umspritzt bzw. beschichtet. - For components that have a cable tail with plug, the cable tail and plug are placed outside the fuel-loaded area. Exposed copper contact areas in the fuel are overmolded or coated with non-catalytic material.
- Bisher im Kraftstoff liegende Komponenten werden nach außen in einen nicht kraftstoffberührenden Bereich verlegt. Beispielsweise kann ein bisher im Tank angeordneter Tankstandgeber mit Ausnahme eines Schwimmers aus dem Tank heraus nach außen verlegt werden. - Previously lying in the fuel components are moved to the outside in a non-fuel contact area. For example, a previously arranged in the tank tank level sensor with the exception of a float out of the tank can be routed outwards.
- Flüssigkeitsdichte Einkapselung von Kraftstoffpumpen, wie Elektrokraftstoffpum- pen. - Liquid-tight encapsulation of fuel pumps, such as electric fuel pumps.
- Verzicht auf Messing- und Bronzebauteile im Niederdruckkreislauf, wie z.B. bei Temperatursensoren, Anschlussstutzen, Einschraubstutzen des Kraftstofffilters etc. Elimination of brass and bronze components in the low pressure circuit, e.g. with temperature sensors, connecting pieces, screwed connections of the fuel filter etc.
- Isolierung der Oberfläche des katalytisch wirkenden Materials durch Umhüllung, Beschichtung oder ähnlichem, z.B. Lackieren, Kunststoff- oder Keramiküberzug etc. - Isolation of the surface of the catalytically active material by cladding, coating or the like, e.g. Painting, plastic or ceramic coating etc.
Weitere Vorteile und vorteilhafte Ausgestaltungen des Gegenstands der Erfindung sind der Beschreibung, der Zeichnung und den Ansprüchen entnehmbar. Zeichnungen Ein Ausführungsbeispiel des erfindungsgemäßen Gegenstands ist in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Die einzige Figur zeigt schematisch die wesentlichen Komponenten des erfindungsgemäßen Kraft- stoffsystems Further advantages and advantageous embodiments of the subject invention are the description, the drawings and claims removed. Drawings An embodiment of the object according to the invention is shown in the drawing and explained in more detail in the following description. The single figure shows schematically the essential components of the fuel system according to the invention
Beschreibung des Ausführungsbeispiels Description of the embodiment
Das in der Figur schematisch gezeigte Kraftstoffsystem 1 umfasst einen Kraftstofftank 2, eine in den Brennraum 3 einer Brennkraftmaschine 4 ragende Einspritzdüse 5 zum Einspritzen von Kraftstoff, eine vom Kraftstofftank 2 zur Einspritzdüse 5 verlaufende Kraftstoffleitung 6 sowie eine Kraftstoffpumpe (Förder- oder Hochdruckpumpe) 7, die Kraftstoff aus dem Tank 2 zur Einspritzdüse 5 fördert. Im Tank 2 ist ein Tankstandgeber 8 vorgesehen, der ein vom Füllstand abhängiges elektrisches Signal über ein Kabel 9 an eine Steuerung (nicht gezeigt) weiterleitet. The fuel system 1 shown schematically in the figure comprises a fuel tank 2, an injection nozzle 5 protruding into the combustion chamber 3 of an internal combustion engine 4 for injecting fuel, a fuel line 6 extending from the fuel tank 2 to the injection nozzle 5, and a fuel pump (conveying or high-pressure pump) 7, the fuel from the tank 2 to the injection nozzle 5 promotes. In the tank 2, a tank level sensor 8 is provided which forwards a level-dependent electrical signal via a cable 9 to a controller (not shown).
Da sich der Kraftstoff größtenteils im Tank 2 befindet, sind zumindest alle im Tank 2 vorgesehenen kraftstoffberührenden Komponenten aus einem für den Kraftstoff kata- lytisch wirkenden Material, wie z.B. Kupfer, Messing oder Bronze, gegenüber dem Kraftstoff isoliert, also mit einer entsprechenden Beschichtung versehen, um den di- rekten Kontakt zwischen Kraftstoff und dem katalytisch wirkenden Material zu verhindern. Besteht beispielsweise das Tankgehäuses 10 aus katalytisch wirkendem Material, so ist das Tankgehäuse 10 innenseitig mit einer nicht-katalytisch wirkenden Beschichtung (z.B. Kunststoff) 11 beschichtet. Alternativ können Komponenten aus einem für den Kraftstoff katalytisch wirkenden Material durch Komponenten aus ei- nem nicht katalytisch wirkenden Material (Metall, Kunststoff, Keramik etc.) ersetzt sein. Since most of the fuel is in the tank 2, at least all of the fuel-contacting components provided in the tank 2 are made of a material catalytically active for the fuel, such as e.g. Copper, brass or bronze, isolated from the fuel, so provided with an appropriate coating to prevent the direct contact between fuel and the catalytic material. If, for example, the tank housing 10 consists of catalytically active material, the tank housing 10 is coated on the inside with a non-catalytically active coating (for example plastic) 11. Alternatively, components of a catalytically active material for the fuel may be replaced by components of a non-catalytically active material (metal, plastic, ceramic, etc.).
Freiliegende Anschlussenden des Kabels 9, die innerhalb des Kraftstoffs liegen, sind ebenfalls mit nicht-katalytischem Material beschichtet bzw. umspritzt. Aus Kosten- gründen und auch funktional ist Kupfer die günstigste Lösung für elektrisch leitfähige Komponenten. Ein Ausweichen auf ein anderes nicht katalytisches leitfähiges Material oder eine Beschichtung werden daher nur erfolgen, wenn eine Verlegung der elektrisch leitfähigen Komponenten in einen kraftstofffreien Bereich nicht möglich ist. So kann der bisher im Tank 2 angeordnete Tankstandgeber 8 mit allen seinen aus katalytisch wirkendem Material bestehenden Komponenten aus dem Tank 2 heraus nach außen verlegt werden, wie in der Figur mit 8' angedeutet ist, und lediglich ein aus nicht-katalytischem Material bestehender Schwimmer 8" noch innerhalb des Tanks 2 verbleiben und mittels eines isolierten Kabels mit den nach außen verlegten Komponenten des Tankstandgebers 8' verbunden sein. Exposed terminal ends of the cable 9 lying inside the fuel are also coated or overmolded with non-catalytic material. From cost Founding and functional, copper is the cheapest solution for electrically conductive components. Dodge to another non-catalytic conductive material or coating will therefore only occur if it is not possible to lay the electrically conductive components in a fuel-free region. Thus, the previously arranged in the tank 2 Tankstandgeber 8 can be moved with all its components consisting of catalytically active material from the tank 2 out to the outside, as indicated in the figure with 8 ', and only one of non-catalytic material existing float. 8 "remain within the tank 2 and be connected by means of an insulated cable with the outsourced components of the Tankstandgebers 8 '.
Die zwischen Tank 2 und Brennraum 3 verlaufenden Kraftstoffleitungen 6 sind entweder für den Fall, dass sie aus einem für den Kraftstoff katalytisch wirkenden Material bestehen, mit einer nicht-katalytisch wirkenden Innenbeschichtung (z.B. Kunst- stoff) versehen und dadurch gegenüber dem Kraftstoff isoliert, oder bestehen aus einem nicht katalytisch wirkenden Material. Gleiches gilt auch für alle anderen kraftstoffberührenden Komponenten, und zwar sowohl im Niederdruckbereich der Kraftstoffpumpe 7, wie z.B. für die Kraftstoffpumpe 7 selbst, als auch im Hochdruckbereich der Kraftstoffpumpe 7, wie z.B. für die Einspritzdüse 5, eine Hochdruckpumpe, einen gestrichelt angedeuteten Hochdruckspeicher („Rail") 12, Ventile etc. The fuel lines 6 extending between the tank 2 and the combustion chamber 3 are either provided with a non-catalytically active inner coating (eg plastic) in the event that they consist of a material which acts catalytically for the fuel, and thereby isolated from the fuel, or consist of a non-catalytic material. The same applies to all other fuel-contacting components, both in the low-pressure region of the fuel pump 7, such as. for the fuel pump 7 itself, as well as in the high-pressure region of the fuel pump 7, such as e.g. for the injection nozzle 5, a high pressure pump, a dashed line indicated high-pressure accumulator ("rail") 12, valves, etc.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009029345.0 | 2009-09-10 | ||
| DE200910029345 DE102009029345A1 (en) | 2009-09-10 | 2009-09-10 | Fuel system with a reduced number of components from catalytically acting on the fuel materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2011029662A1 true WO2011029662A1 (en) | 2011-03-17 |
Family
ID=43034311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2010/060934 Ceased WO2011029662A1 (en) | 2009-09-10 | 2010-07-28 | Fuel system having a reduced number of components made of materials acting catalytically on the fuel |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE102009029345A1 (en) |
| WO (1) | WO2011029662A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6041650A (en) * | 1997-08-26 | 2000-03-28 | Rochester Gauges, Inc. | Liquid level gauge |
| EP1734364A2 (en) * | 2005-06-17 | 2006-12-20 | Petrotest Instruments GmbH & Co. KG | Method and device for accelerated determination of the oxidation of fuels or mineral oil products and a computer program for controlling such a device and a corresponding computer readable storage medium |
| WO2007080078A1 (en) * | 2006-01-10 | 2007-07-19 | Erhard & Söhne GmbH | Container for operating media of motor vehicles |
| US20080295593A1 (en) * | 2007-05-30 | 2008-12-04 | Aisan Kogyo Kabushiki Kaisha | Fuel supply systems |
-
2009
- 2009-09-10 DE DE200910029345 patent/DE102009029345A1/en not_active Withdrawn
-
2010
- 2010-07-28 WO PCT/EP2010/060934 patent/WO2011029662A1/en not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6041650A (en) * | 1997-08-26 | 2000-03-28 | Rochester Gauges, Inc. | Liquid level gauge |
| EP1734364A2 (en) * | 2005-06-17 | 2006-12-20 | Petrotest Instruments GmbH & Co. KG | Method and device for accelerated determination of the oxidation of fuels or mineral oil products and a computer program for controlling such a device and a corresponding computer readable storage medium |
| WO2007080078A1 (en) * | 2006-01-10 | 2007-07-19 | Erhard & Söhne GmbH | Container for operating media of motor vehicles |
| US20080295593A1 (en) * | 2007-05-30 | 2008-12-04 | Aisan Kogyo Kabushiki Kaisha | Fuel supply systems |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102009029345A1 (en) | 2011-03-24 |
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