DE10241444A1 - Internal combustion engine operating method for operating a liquid/gas fuel choice has a fuel container, a fuel blow-in valve, a fuel feeder line, a fuel distribution line and a suction pipe device - Google Patents
Internal combustion engine operating method for operating a liquid/gas fuel choice has a fuel container, a fuel blow-in valve, a fuel feeder line, a fuel distribution line and a suction pipe device Download PDFInfo
- Publication number
- DE10241444A1 DE10241444A1 DE10241444A DE10241444A DE10241444A1 DE 10241444 A1 DE10241444 A1 DE 10241444A1 DE 10241444 A DE10241444 A DE 10241444A DE 10241444 A DE10241444 A DE 10241444A DE 10241444 A1 DE10241444 A1 DE 10241444A1
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- Prior art keywords
- fuel
- internal combustion
- combustion engine
- valve
- fuel supply
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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
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
- F02M25/089—Layout of the fuel vapour installation
-
- 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
- F02M67/00—Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type
-
- 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
- F02M67/00—Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type
- F02M67/06—Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type the gas being other than air, e.g. steam, combustion gas
-
- 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
- F02M67/00—Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type
- F02M67/14—Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type characterised by provisions for injecting different fuels, e.g. main fuel and readily self-igniting starting fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0639—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels
- F02D19/0642—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions
- F02D19/0647—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions the gaseous fuel being liquefied petroleum gas [LPG], liquefied natural gas [LNG], compressed natural gas [CNG] or dimethyl ether [DME]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02D19/0686—Injectors
- F02D19/0689—Injectors for in-cylinder direct injection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02D19/0686—Injectors
- F02D19/0692—Arrangement of multiple injectors per combustion chamber
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Betrieb einer Brennkraftmaschine gemäß dem Oberbegriff des Anspruchs 1 sowie eine Brennstoffzufuhrvorrichtung einer Brennkraftmaschine gemäß dem Oberbegriff des Anspruchs 6.The invention relates to a method for operating an internal combustion engine according to the preamble of the claim 1 and a fuel supply device of an internal combustion engine according to the generic term of claim 6.
Beim Betrieb von modernen Brennkraftmaschinen werden neben den bekannten flüssigen Brennstoffen ebenso gasförmige Brennstoffe verwendet, um Verbrauch und Emissionen zu senken. Oftmals werden sowohl flüssige als auch gasförmige Brennstoffe gleichzeitig, d.h. wahlweise, für einen bivalenten Betrieb eingesetzt.When operating modern internal combustion engines Beyond the familiar liquid fuels also gaseous Fuels used to reduce fuel consumption and emissions. often be both liquid as well as gaseous fuels simultaneously, i. optional, for used a bivalent operation.
Nach dem Abstellen einer Brennkraftmaschine dürfen durch die immer werdenden Abgasvorschriften insbesondere beim Startbetrieb von Brennkraftmaschinen aus der Brennstoffzufuhreinrichtung keine Brennstoffanteile in den Brennraum gelangen, da sonst diese beim Start der Brennkraftmaschine unverbrannt in die noch nicht auf Betriebstemperatur funktionierende Abgasnachbehandlungseinrichtung und somit in die Umwelt gelangen.After switching off an internal combustion engine allowed due to the ever-increasing emission regulations, especially during start-up of internal combustion engines from the fuel supply no Get fuel in the combustion chamber, otherwise this at Start of the engine unburned in the not yet working at operating temperature Exhaust after-treatment device and thus reach the environment.
Aus der Patentschrift
Aufgabe der Erfindung ist es, ein Verfahren bereitzustellen, bei dem die gebildeten Emissionen während eines Startbetriebs einer Brennkraftmaschine der eingangs erwähnten Art verringert werden. Eine weitere Aufgabe der vorliegenden Erfindung besteht darin, eine Brennstoffzufuhrvorrichtung zu schaffen, bei der ein Entweichen von Brennstoffen in den Brennraum während eines Stillstandes der Brennkraftmaschine mit einfachen Maßnahmen minimiert wird.The object of the invention is a To provide a method in which the emissions formed during a Start operation of an internal combustion engine of the type mentioned be reduced. Another object of the present invention is to provide a fuel supply device at the escape of fuel into the combustion chamber during a Standstill of the internal combustion engine with simple measures is minimized.
Diese Aufgabe wird erfindungsgemäß durch ein Verfahren mit den Merkmalen des Anspruchs 1 und eine Brennstoffzufuhrvorrichtung mit den Merkmalen des Anspruchs 6 gelöst.This object is achieved by a Method with the features of claim 1 and a fuel supply device solved with the features of claim 6.
Das erfindungsgemäße Verfahren zeichnet sich dadurch aus, dass bei einem Stillstand der Brennkraftmaschine eine Brennstoffrestmenge aus einem Bereich zwischen der Absperreinrichtung und dem Brennstoffeinblasventil einer Brennstoffzwischenspeichereinrichtung gasförmig zugeführt wird. Somit wird ein Entweichen der Brennstoffrestmenge durch undichte Einblasventile vermieden. Dadurch findet keine Überfettung eines beim Start gebildeten Brennstoff/Luft-Gemisches statt. Dies ermöglicht einen spontanen Start ohne Verzögerungen.The inventive method is characterized characterized in that at a standstill of the internal combustion engine a Minimum fuel quantity from a region between the shut-off device and the fuel injection valve of a fuel staging device gaseous supplied becomes. Thus, leakage of the fuel remaining amount is leaking Injection valves avoided. As a result, no Überfettung one at startup formed fuel / air mixture instead. This allows one spontaneous start without delays.
In Ausgestaltung des erfindungsgemäßen Verfahrens wird während des Stillstandes der Brennkraftmaschine ein Entleerungsventil derart geöffnet, dass die Brennstoffrestmenge in einen Zwischenspeicherbehälter gasförmig gebracht wird. Vorzugsweise wird die Brennstoffrestmenge im Zwischenspeicherbehälter adsorbiert. Es ist denkbar, dass die Brennstoffrestmenge im Bereich zwischen der Absperreinrichtung und dem Brennstoff einblasventil sowohl gasförmig als auch in einer flüssigen Form vorliegt. Liegt sie beispielsweise als Flüssiggas vor, dann wird sie vor dem Eintritt in den Zwischenspeicherbehälter in eine gasförmige Phase gebracht.In an embodiment of the method according to the invention is during the stoppage of the internal combustion engine, a drain valve such open that the fuel residue is placed in a gaseous storage tank becomes. Preferably, the fuel remaining amount is adsorbed in the buffer tank. It is conceivable that the fuel remaining in the range between the shut-off device and the fuel injection valve both gaseous as also in a liquid Form is present. For example, if it is a liquefied gas then it will before entering the buffer tank in a gaseous phase brought.
Gemäß einer weiteren Ausgestaltung des erfindungsgemäßen Verfahrens wird während eines Betriebs der Brennkraftmaschine die im Zwischenspeicherbehälter adsorbierte Brennstoffrestmenge der Saugrohreinrichtung gezielt zugeführt.According to another embodiment the method according to the invention is during an operation of the internal combustion engine adsorbed in the temporary storage tank Fuel remaining amount of the intake manifold selectively supplied.
In einer weiteren Ausgestaltung des erfindungsgemäßen Verfahrens erfolgt eine Einspeisung der Brennstoffrestmenge in die Saugrohreinrichtung mittels einer Einleitung eines Regeneriervorgangs des Zwischenspeicherbehälters durch ein Öffnen eines Regenerierventils. Dies Rückgewinnung der zwischengespeicherten Brennstoffrestmenge wird somit mit einfachen Mitteln erzielt.In a further embodiment of the inventive method a supply of fuel residue in the intake manifold by means of an initiation of a regeneration process of the temporary storage container an opening a regeneration valve. This recovery the cached fuel residue is thus with simple Means achieved.
Die erfindungsgemäße Brennstoffzufuhrvorrichtung zeichnet sich dadurch aus, dass bei einem Stillstand der Brennkraftmaschine eine Brennstoffrestmenge aus einem Bereich zwischen der Absperreinrichtung und dem Brennstoffeinblasventil einer Brennstoffzwischenspeichereinrichtung gasförmig zuführbar ist, wobei die Brennstoffzwischenspeichereinrichtung mit der Brennstoffverteilerleitung und der Saugrohreinrichtung verbunden ist. Erfindungsgemäß wird die gasförmige oder flüssige Brennstoffrestmenge im Bereich zwischen dem Brennstoffbehälter und dem Brennstoffinjektor eingegrenzt, so dass eine zuverlässige Entsorgung der Brennstoffrestmenge stattfinden kann. Dadurch wird nach einem Stillstand der Brennkraftmaschine ein verbessertes Betriebsverhalten beim Start der Brennkraftmaschine ermöglicht. Nach dem Abstellen einer mit gasförmigem Brennstoff betriebenen Brennkraftmaschine, d.h. unmittelbar nach der Beendigung bzw. Unterbrechung eines Betriebs, gelangen somit keine nennwerte Brennstoffreste aus der Brennstoffzufuhreinrichtung in den Brennraum. Es wird ein Entweichen der gasförmigen Brennstoffanteile derart mini miert, dass keine Überfettung des beim Start gebildeten Brennstoff/Luft-Gemisches eintritt.The fuel supply device according to the invention is characterized in that at a standstill of the internal combustion engine, a fuel residue from a range between the shut-off device and the Brennstoffeinblasventil a fuel storage device is supplied in gaseous form, wherein the intermediate fuel storage device is connected to the fuel distribution line and the intake manifold. According to the gaseous or liquid fuel residue in the area between the fuel tank and the fuel injector is limited, so that a reliable disposal of the fuel residue can take place. As a result, an improved operating behavior at the start of the internal combustion engine is made possible after a stoppage of the internal combustion engine. After switching off an engine operated with gaseous fuel, ie immediately after the termination or interruption of an operation, no nominal fuel residues from the fuel supply device thus reach the combustion chamber. It is an escape of the gaseous fuel components so mini mized that no Überfettung the structure at startup th fuel / air mixture occurs.
In Ausgestaltung der erfindungsgemäßen Brennstoffzufuhrvorrichtung weist die Brennstoffzwischenspeichereinrichtung eine Regenerierleitung, ein Regenerierventil und einen Zwischenspeicherbehälter auf.In an embodiment of the fuel supply device according to the invention The intermediate fuel storage device has a regeneration line Regenerating valve and a buffer tank on.
In einer weiteren Ausgestaltung der erfindungsgemäßen Brennstoffzufuhrvorrichtung weist die Brennstoffzwischenspeichereinrichtung eine Entleerungsleitung auf. Vorzugsweise ist der mit Brennstoff gefüllte Bereich zwischen der Absperreinrichtung und dem Brennstoffeinblasventil mit der Brennstoffzwischenspeichereinrichtung mittels eines Entleerungsventils verbunden. Dieses Ventil kann beim Vorliegen der Brennstoffrestmenge in einer flüssigen Form weiterhin als ein Entspannungsventil dienen, so dass die Brennstoffrestmenge gasförmig zum Zwischenspeicherbehälter gebracht wird.In a further embodiment of the Fuel supply device according to the invention the fuel cache device has a drain line on. Preferably, the fuel-filled area is between the shut-off device and the fuel injection valve with the intermediate fuel storage device connected by means of a drain valve. This valve can when Presence of the fuel residue in a liquid form further as a Serve relaxation valve, so that the fuel residue in gaseous form brought to the buffer tank becomes.
Insbesondere wird das erfindungsgemäße Verfahren und die erfindungsgemäße Brennstoffzufuhrvorrichtung für Brennkraftmaschinen mit bivalentem Betrieb verwendet, welche beispielsweise mit Diesel- oder Benzinkraftstoffen und Erd- bzw. Flüssiggas betrieben werden.In particular, the method according to the invention and the fuel supply device according to the invention for internal combustion engines used with bivalent operation, which, for example, with diesel or gasoline fuels and natural gas or liquefied gas.
Weitere Merkmale und Merkmalskombinationen ergeben sich aus der Beschreibung. Ein konkretes Ausführungsbeispiel der Erfindung ist in der Zeichnung vereinfacht dargestellt und in der nachfolgenden Beschreibung näher erläutert.Further features and feature combinations arise from the description. A concrete embodiment the invention is shown in simplified form in the drawing and in the following description explained.
Die einzige Figur zeigt in schematisch vereinfachter Darstellungsweise ein Schaltbild der Komponenten einer Brennstoffzufuhrvorrichtung. Das Ausführungsbeispiel betrifft eine Brennstoffzufuhrvorrichtung für eine fremdgezündete Brennkraftmaschine, bei der ein bivalenter Betrieb vorgesehen ist. Es werden wahlweise ein flüssiger oder ein gasförmiger Brenn stoff verwendet, wobei der flüssige Brennstoff beispielsweise ein Diesel- oder ein Benzinkraftstoff sein kann. Beim gasförmigen Brennstoff handelt es sich um komprimiertes Erdgas, wobei ein anderer gasförmiger Brennstoff ebenso verwendet werden kann. Es ist weiterhin denkbar, dass die Brennkraftmaschine nur mit einem gasförmigen Brennstoff betrieben wird.The single figure shows in schematic simplified representation of a circuit diagram of the components of a Fuel supply device. The embodiment relates to a Fuel supply device for a foreign-born Internal combustion engine, in which a bivalent operation is provided. It are optionally a liquid or a gaseous one Used fuel, the liquid fuel, for example a diesel or a gasoline fuel may be. For gaseous fuel it is compressed natural gas, with another gaseous fuel can also be used. It is also conceivable that the Internal combustion engine operated only with a gaseous fuel becomes.
Um einen bivalenten Betrieb zu ermöglichen, sind
für einen
Zylinder
Für
einen bivalenten Betrieb der Brennkraftmaschine sind ein Brennstoffbehälter
In der Prinzipdarstellung der Ausführungsform
befindet sich das Benzin im Benzintank
Die im Benzintank
Nach einer Unterbrechung bzw. Beendigung des
Betriebs der Brennkraftmaschine mit Erdgas wird in einem Stillstand
bzw. unmittelbar nach Stillsetzen der Brennkraftmaschine das Ab sperrventil
Vorzugsweise ist zwischen dem Entleerungsventil
Beim Betrieb der Brennkraftmaschine
wird Umgebungsluft zur Entsorgung des Aktivkohlebehälters
Die Erfindung betrifft insbesondere
eine Brennkraftmaschine mit bivalentem Betrieb, die wahlweise mit
flüssigem
Brennstoff oder gasförmigem
Brennstoff betrieben wird. Erfindungsgemäße wird bei einem Stillstand
bzw. nach einem Stillsetzen der Brennkraftmaschine, d.h. unmittelbar
nach Unterbrechung oder Beendigung des Betriebs, mittels einer Absperreinrichtung
Das erfindungsgemäße Verfahren sowie die erfindungsgemäße Brennstoffzufuhrvorrichtung eignen sich für alle Brennkraftmaschinen, welche mit einem gasförmigen oder flüssigen Brennstoff nach dem 4-Takt- oder 2-Takt-Prinzip betrieben werden. Es ist weiterhin denkbar, sie sowohl bei fremdgezündeten als auch bei selbstgezündeten Brennkraftmaschinen, beispielsweise für Diesel/Erd- oder Flüssiggas-Brennstoffkombinationen zu verwenden. Des Weiteren kann das erfindungsgemäße Verfahren bei allen Brennkraftmaschinen mit monovalentem Betrieb angewandt werden, die beispielsweise nur mit Erdgas bzw. Flüssiggas betrieben werden.The inventive method and the fuel supply device according to the invention are suitable for all internal combustion engines, which with a gaseous or liquid fuel operated according to the 4-stroke or 2-stroke principle. It is still conceivable, both in foreign-born as well as self-ignited ones Internal combustion engines, for example for diesel / natural gas or LPG fuel combinations to use. Furthermore, the inventive method applied to all internal combustion engines with monovalent operation be, for example, only with natural gas or LPG operate.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10241444A DE10241444A1 (en) | 2002-09-06 | 2002-09-06 | Internal combustion engine operating method for operating a liquid/gas fuel choice has a fuel container, a fuel blow-in valve, a fuel feeder line, a fuel distribution line and a suction pipe device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10241444A DE10241444A1 (en) | 2002-09-06 | 2002-09-06 | Internal combustion engine operating method for operating a liquid/gas fuel choice has a fuel container, a fuel blow-in valve, a fuel feeder line, a fuel distribution line and a suction pipe device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10241444A1 true DE10241444A1 (en) | 2004-03-18 |
Family
ID=31724468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE10241444A Withdrawn DE10241444A1 (en) | 2002-09-06 | 2002-09-06 | Internal combustion engine operating method for operating a liquid/gas fuel choice has a fuel container, a fuel blow-in valve, a fuel feeder line, a fuel distribution line and a suction pipe device |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE10241444A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008092761A1 (en) * | 2007-01-29 | 2008-08-07 | Robert Bosch Gmbh | Method and device for operating a gas injection system of a gas fuel and a liquid fuel operated internal combustion engine |
| WO2012072184A1 (en) * | 2010-12-04 | 2012-06-07 | Daimler Ag | Internal combustion engine arrangement for a motor vehicle and method for operating such an internal combustion engine arrangement |
| US9027534B2 (en) | 2012-10-26 | 2015-05-12 | Caterpillar Inc. | Dual fuel engine and strategy to avoid atmospheric venting |
| WO2015169684A1 (en) * | 2014-05-09 | 2015-11-12 | Robert Bosch Gmbh | Device and method for operating an internal combustion engine with a gaseous fuel |
| DE102004039260B4 (en) * | 2004-08-13 | 2016-06-09 | Audi Ag | Method and device for operating a fuel metering system |
-
2002
- 2002-09-06 DE DE10241444A patent/DE10241444A1/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004039260B4 (en) * | 2004-08-13 | 2016-06-09 | Audi Ag | Method and device for operating a fuel metering system |
| WO2008092761A1 (en) * | 2007-01-29 | 2008-08-07 | Robert Bosch Gmbh | Method and device for operating a gas injection system of a gas fuel and a liquid fuel operated internal combustion engine |
| CN101595296B (en) * | 2007-01-29 | 2012-03-21 | 罗伯特·博世有限公司 | Method and device for operating a gas injection system of a gas fuel and a liquid fuel operated internal combustion engine |
| US8560212B2 (en) | 2007-01-29 | 2013-10-15 | Robert Bosch Gmbh | Method and device for operating a gas injection system of a gas fuel and a liquid fuel operated internal combustion engine |
| EP1950409A3 (en) * | 2007-01-29 | 2014-04-09 | Robert Bosch Gmbh | Method and device for operating a gas injection system of a gas fuel and a liquid fuel operated internal combustion engine |
| WO2012072184A1 (en) * | 2010-12-04 | 2012-06-07 | Daimler Ag | Internal combustion engine arrangement for a motor vehicle and method for operating such an internal combustion engine arrangement |
| US9027534B2 (en) | 2012-10-26 | 2015-05-12 | Caterpillar Inc. | Dual fuel engine and strategy to avoid atmospheric venting |
| WO2015169684A1 (en) * | 2014-05-09 | 2015-11-12 | Robert Bosch Gmbh | Device and method for operating an internal combustion engine with a gaseous fuel |
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