EP1273795B1 - Method and apparatus for injecting fuel - Google Patents
Method and apparatus for injecting fuel Download PDFInfo
- Publication number
- EP1273795B1 EP1273795B1 EP02008887A EP02008887A EP1273795B1 EP 1273795 B1 EP1273795 B1 EP 1273795B1 EP 02008887 A EP02008887 A EP 02008887A EP 02008887 A EP02008887 A EP 02008887A EP 1273795 B1 EP1273795 B1 EP 1273795B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- injection
- pump piston
- pump
- piston
- eccentric
- 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.)
- Expired - Lifetime
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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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/20—Varying fuel delivery in quantity or timing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
- F02D1/16—Adjustment of injection timing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
- F02D1/16—Adjustment of injection timing
- F02D1/162—Adjustment of injection timing by mechanical means dependent on engine speed for angular adjustment of driving and driven shafts
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/24—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke
- F02M59/26—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders
Definitions
- a control device such as Eccentric device
- the object of the invention is a method and a device for injecting fuel into a combustion chamber to create a diesel engine with the harmful Exhaust emissions in a simple manner at predetermined Load conditions of the engine are herabsetzbar.
- the injection timing in the direction of "early" achievable is, that is, when the start of delivery and the injection time is done before a TDC position, is a so-called soot formation at partial and light load avoided.
- This is done with an adjustment of the pump piston in the injection pump at partial load and low load achieved high injection pressure at the injector, the in a range of about minus 20 ° to minus 10 ° of the piston angle before TDC of the engine piston and in a range of Speed of the pump piston from about 2.5 to 3.5 m / s lies.
- the high injection pressure at a crank angle of about minus 14 ° before TDC of the engine piston and at a Speed of about 3 m / s of the pump piston is.
- the early start of delivery and injection time will be achieved by the pump piston of the injection pump with its control edge via a control rod in a conveying position in the direction of "late” is rotatable and this Twisting movement "late” an axial positioning movement to corresponding injection start in the direction of "early” on with the Pump piston operatively connected control device, such as a Eccentric, is superimposed.
- the Pump piston operatively connected control device such as a Eccentric
- the axial adjustment of the pump piston takes place in dependence from the piston position of the engine and this points the eccentric held on an eccentric Rocking lever on, with its free end by means of a roller between the pump piston and a camshaft is arranged and over the eccentric to the camshaft in an injection position in the direction of "early” adjustable is.
- This eccentric adjustment makes it easier Way by adjusting the eccentric a start of delivery in Direction "early” or “late”, that is, the Roller can be adjusted according to the cam of the camshaft be so that according to the invention at part load or Low load, the adjustment in the direction of "early” is selectable and then, for example, at full load below again an adjustment towards “late” or otherwise can be made.
- an internal combustion engine 1 for example a diesel engine, takes place by means of a fuel-conveying pump unit 2, via a pressure line 3 with an injection nozzle 4 is connected.
- the injection pump 2 has an adjustable pump piston 5 with a control edge. 6 and a long groove 7.
- the end of funding is determined by the position the control edge 6 after a rotation of the piston. 5 determined, which formed according to the objective is. Determining for the promotion are also the Zulaufbohronne 8, which are significantly contributing to the Delivery stroke and the delivery rate.
- the axial increase of the pump piston 5 via a arranged on a rocker arm 9 roller 10, in operative connection with a cam 11 of a camshaft 16 is.
- the adjustable according to the setting "early” or “late” is.
- the position of the roller 10 changes to the cam 11 and the injection timing is variable, that is, the injection timing may be in accordance with Load condition of the engine to be changed, resulting in interaction with the promotion of the fuel over the position the control edge in the injection pump 2 takes place.
- Fig. 2 in more detail with reference to the diagram, is the "early" injection time E1 before the "late” injection time E in a range of minus 20 ° to minus 10 ° of the crank angle K provided before the TDC and the injection occurs at a speed V of the pump piston 5 in a range of 2.5 to 3.5 M / s.
- the injection timing is advanced by 14 ° crank angle K. and this at an increased piston speed V of 3 m / s of the injection pump 2.
- the advance of the injection timing takes place at the shown embodiment by about 14 ° crank angle from E to E2, wherein the start of delivery of the fuel in particular by achieved the adjustment of the eccentric 12 on the pivot lever 9 and the shift of fuel production from approx. 1.8 m / s to 3.5 m / s by appropriate rotation of the Pump piston 5 to E1. Both measures allow a transfer of the start of delivery and the injection point in the direction of "early”.
Abstract
Description
Verfahren zum Einspritzen von Kraftstoff in einen Verbrennungsraum eines Dieselmotors, über eine Einspritzdüse, die mittels einer Druckleitung mit einer Einspritzpumpe verbunden ist, welche einen Pumpenkolben aufweist, wobei eine Steuereinrichtung, wie eine Exzentereinrichtung, zur Verstellung des Förderbeginns zwischen dem Pumpenkolben und einer Nockenwelle angeordnet ist.Method for injecting fuel into a Combustion chamber of a diesel engine, over a Injection nozzle by means of a pressure line with a Injection pump is connected, which is a pump piston wherein a control device, such as Eccentric device, for adjusting the start of delivery arranged between the pump piston and a camshaft is.
Es hat sich durch verschärfte Anforderungen an Verbrauch und Abgasemission gezeigt, daß ein unveränderlicher Förderbeginn des Kraftstoffs nicht mehr zu vertreten ist. Im Zusammenhang mit gesetzlichen Emissionsbeschränkungen ist es erforderlich, durch Verlegung des Zündzeitpunktes den NOx-Ausstoß zu beeinflussen. Dies kann beispielsweise durch die Verwendung einer besonderen obenliegenden Steuerkante am Pumpenkolben, mit der eine regelweg- und damit lastabhängige Förderbeginnverstellung erreichbar ist. Die Geometrie von aufeinander abgestimmter Steuerkante und Steuerbohrung erlaubt keine beliebige Förderbeginnänderung über den Regelweg. Diese Förderbeginnänderung wird auch erzielt, wenn eine motorseitige Lagerstelle eines Schwinghebels im Antrieb der Einspritzpumpe als Exzenter ausgebildet ist, so daß durch ein Verstellen des Exzenters eine Förderbeginnänderung in Richtung "früh" oder "spät" vorgenommen werden kann (Handbuch Dieselmotor, Klaus Mollenhauer, Springer-Verlag 1997, S. 207).It has become stricter consumption requirements and exhaust emission shown that a steady start of delivery of the fuel is no longer responsible. in the Is related to statutory emission restrictions it required, by laying the ignition To influence NOx emissions. This can be done, for example the use of a special overhead control edge on the pump piston, with which a regular way and thus load-dependent Delivery start adjustment is achievable. The geometry of coordinated control edge and control bore does not allow any change of delivery start over the rule. This start of funding change is also achieved if an engine-side bearing of a rocker arm in Drive the injection pump is designed as an eccentric, so that by adjusting the eccentric a Förderbeginn change in the direction of "early" or "late" can (manual diesel engine, Klaus Mollenhauer, Springer-Verlag 1997, p. 207).
Nach der DE 19 72 18 41 A1 ist ein Verfahren zur Steigerung einer Einspritzpumpe für die Kraftstoffeinspritzung bekannt. Durch eine Stellbewegung eines Schwinghebels wird die Kolbenbewegung verstellt und der Förderbeginn durch ein Magnetventil gesteuert.According to DE 19 72 18 41 A1 is a method for increasing an injection pump for fuel injection known. By an adjusting movement of a rocking lever is the piston movement is adjusted and the start of delivery by a Solenoid valve controlled.
Ferner ist nach der AT 311 727 B bekannt, einen Förderbeginn durch eine Steuerkarte des Kolbens zu bestimmen.Furthermore, it is known from AT 311 727 B, a Start of delivery through a control card of the piston determine.
Aufgabe der Erfindung ist es, ein Verfahren und eine Vorrichtung zum Einspritzen von Kraftstoff in einen Verbrennungsraum eines Dieselmotors zu schaffen, mit dem schädliche Abgasemissionen in einfacher Weise bei vorbestimmten Lastzuständen des Motors herabsetzbar sind.The object of the invention is a method and a device for injecting fuel into a combustion chamber to create a diesel engine with the harmful Exhaust emissions in a simple manner at predetermined Load conditions of the engine are herabsetzbar.
Diese Aufgabe wird erfindungsgemäß durch die Verfahrensmerkmale
der Ansprüche 1 und 2 gelöst, wobei zur Durchführung
des Verfahrens weiterbildende Vorrichtungsmerkmale
in den Ansprüchen 3 bis 5 dargestellt sind.This object is achieved by the method features
of
Damit der Einspritzzeitpunkt in Richtung "früh" erzielbar
ist, das heißt, wenn der Förderbeginn sowie der Einspritzzeitpunkt
entsprechend vor einer OT-Stellung erfolgt, wird
eine sogenannte Rußbildung bei Teil- und Schwachlast vermieden.
Hierzu wird bei einer Verstellung des Pumpenkolbens
in der Einspritzpumpe bei Teillast- und Schwachlast ein
hoher Einspritzdruck an der Einspritzdüse erzielt, der in
einem Bereich von etwa minus 20° bis minus 10° des Kolbenwinkels
vor OT des Motorkolbens und in einem Bereich der
Geschwindigkeit des Pumpenkolbens von etwa 2,5 bis 3,5 m/s
liegt. Der hohe Einspritzdruck bei einem Kurbelwinkel von
etwa minus 14° vor OT des Motorkolbens und bei einer
Geschwindigkeit von etwa 3 m/s des Pumpenkolbens liegt.
Durch diese Maßnahme wird sowohl der Einspritzzeitpunkt
vorverlegt, als auch der Förderbeginn des Kraftstoffs.Thus, the injection timing in the direction of "early" achievable
is, that is, when the start of delivery and the injection time
is done before a TDC position, is
a so-called soot formation at partial and light load avoided.
This is done with an adjustment of the pump piston
in the injection pump at partial load and low load
achieved high injection pressure at the injector, the in
a range of about
Der frühe Förderbeginn und Einspritzzeitpunkt wird erreicht, indem der Pumpenkolben der Einspritzpumpe mit seiner Steuerkante über eine Regelstange in eine Förderstellung in Richtung "spät" verdrehbar ist und dieser Verdrehbewegung "spät" eine axiale Stellbewegung zum korrespondierenden Einspritzbeginn in Richtung "früh" über eine mit dem Pumpenkolben wirkverbundenen Steuereinrichtung, wie eine Exzentereinrichtung, überlagert ist. Durch diese kombinierte kontinuierliche Verstellung des Pumpenkolbens kann eine optimale frühe Einspritzung erfolgen, die zudem bei hoher Kolbengeschwindigkeit erzielt wird, wodurch ein relativ hoher Einspritzdruck gewährleistet ist.The early start of delivery and injection time will be achieved by the pump piston of the injection pump with its control edge via a control rod in a conveying position in the direction of "late" is rotatable and this Twisting movement "late" an axial positioning movement to corresponding injection start in the direction of "early" on with the Pump piston operatively connected control device, such as a Eccentric, is superimposed. By this combined continuous adjustment of the pump piston can an optimal early injection done, which also at high piston speed is achieved, creating a is ensured relatively high injection pressure.
Die axiale Verstellung des Pumpenkolbens erfolgt in Abhängigkeit von der Kolbenstellung des Motors und hierzu weist die Exzentereinrichtung einen auf einem Exzenter gehaltenen Schwinghebel auf, der mit seinem freien Ende mittels einer Rolle zwischen dem Pumpenkolben und einer Nockenwelle angeordnet ist und über den Exzenter zur Nockenwelle in eine Einspritzstellung in Richtung "früh" einstellbar ist. Diese Exzentereinstellung ermöglicht es, in einfacher Weise durch Verstellen des Exzenters eine Förderbeginn in Richtung "früh" oder "spät" vorzunehmen, das heißt, die Rolle kann zum Nocken der Nockenwelle entsprechend eingestellt werden, so daß erfindungsgemäß bei Teillast bzw. Schwachlast die Verstellung in Richtung "früh" wählbar ist und danach beispielsweise bei Volllast nachfolgend wieder eine Verstellung in Richtung "spät" oder in anderer Weise vorgenommen werden kann.The axial adjustment of the pump piston takes place in dependence from the piston position of the engine and this points the eccentric held on an eccentric Rocking lever on, with its free end by means of a roller between the pump piston and a camshaft is arranged and over the eccentric to the camshaft in an injection position in the direction of "early" adjustable is. This eccentric adjustment makes it easier Way by adjusting the eccentric a start of delivery in Direction "early" or "late", that is, the Roller can be adjusted according to the cam of the camshaft be so that according to the invention at part load or Low load, the adjustment in the direction of "early" is selectable and then, for example, at full load below again an adjustment towards "late" or otherwise can be made.
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im folgenden näher beschrieben. Es zeigen:
- Fig. 1
- ein Diagramm mit einem über die Geschwindigkeit des Pumpenkolbens zum Kurbelwinkel aufgetragenen Kurvenverlauf mit Förderbeginn und "frühen und/späten" Einspritzzeit,
- Fig. 2
- eine schematische Darstellung der Vorrichtung zur Durchführung des Verfahrens mit Einspritzpumpe und axialer Verstellung und Drehverstellung des Pumpenkolbens.
- Fig. 1
- a diagram with a curve plotted against the speed of the pump piston to the crank angle with start of delivery and "early and / or late" injection time,
- Fig. 2
- a schematic representation of the apparatus for performing the method with injection pump and axial adjustment and rotational adjustment of the pump piston.
Ein Einspritzen des Kraftstoffs in einen Verbrennungsraum
einer Brennkraftmaschine 1 beispielsweise eines Dieselmotors,
erfolgt mittels einer kraftstofffördernden Pumpeneinheit
2, die über eine Druckleitung 3 mit einer Einspritzdüse
4 verbunden ist. Die Einspritzpumpe 2 weist
einen verstellbaren Pumpenkolben 5 mit einer Steuerkante 6
sowie einer Langsnut 7 auf.Injecting the fuel into a combustion chamber
an internal combustion engine 1, for example a diesel engine,
takes place by means of a fuel-
Eine Verstellung des Pumpenkolbens 5 zur Regelung der
Fördermenge erfolgt mittels einer Regelstange 15 oder der
gleichen Mittel. Das Förderende wird durch die Stellung
der Steuerkante 6 nach einer Verdrehung des Kolbens 5
bestimmt, die entsprechend der Zielsetzung ausgebildet
ist. Bestimmend für die Förderung sind auch die Zulaufbohrungen
8, die wesentlich mitbestimmend sind für den
Förderhub und die Fördermenge.An adjustment of the
Die axiale Anhebung des Pumpenkolbens 5 erfolgt über eine
an einem Schwinghebel 9 angeordnete Rolle 10, die in Wirkverbindung
mit einem Nocken 11 einer Nockenwelle 16 steht.
Zur Veränderung der Stellung der Rolle 10 zum Nocken 11
ist der Schwinghebel 9 auf einem Exzenter 12 gelagert, der
entsprechend der Einstellung "früh" oder "spät" verstellbar
ist. Hierdurch ändert sich die Position der Rolle 10
zum Nocken 11 und der Einspritzzeitpunkt ist veränderbar,
das heißt, es kann der Einspritzzeitpunkt entsprechend dem
Lastzustand des Motors verändert werden, was im Zusammenspiel
mit der Förderung des Kraftstoffs über die Stellung
der Steuerkante in der Einspritzpumpe 2 erfolgt.The axial increase of the
Wie in Fig. 2 anhand des Diagramms näher dargestellt, ist
der "frühe" Einspritzzeitpunkt E1 vor dem "späten" Einspritzzeitpunkt
E in einem Bereich von minus 20° bis minus
10° des Kurbelwinkels K vor dem OT vorgesehen und die Einspritzung
erfolgt bei einer Geschwindigkeit V des Pumpenkolbens
5 in einem Bereich von 2,5 bis 3,5 M/S. Insbesondere
ist der Einspritzzeitpunkt um 14° Kurbelwinkel K vorverlegt
und dies bei einer erhöhten Kolbengeschwindigkeit V
von 3 m/s der Einspritzpumpe 2.As shown in Fig. 2 in more detail with reference to the diagram, is
the "early" injection time E1 before the "late" injection time
E in a range of
Die Vorverlegung des Einspritzzeitpunktes erfolgt bei der
gezeigten Ausführung um ca. 14° Kurbelwinkel von E zu E2,
wobei der Förderbeginn des Kraftstoffs insbesondere durch
die Verstellung des Exzenters 12 am Schwenkhebel 9 erzielt
wird und die Verlagerung der Kraftstofförderung von ca.
1,8 m/s auf 3,5 m/s durch entsprechende Verdrehung des
Pumpenkolbens 5 nach E1 erfolgt. Beide Maßnahmen ermöglichen
eine Verlegung des Förderbeginns und des Einspritzpunktes
in Richtung "früh".The advance of the injection timing takes place at the
shown embodiment by about 14 ° crank angle from E to E2,
wherein the start of delivery of the fuel in particular by
achieved the adjustment of the eccentric 12 on the
Ausgehend von einer Basisauslegung wird somit eine doppelte (gegenläufige) Förderbeginn-Verstellung durchgeführt. Bei Teillast wird über die Lenkerwelle der Förderbeginn weit nach früh verschoben, von E auf E2. Um in Bereiche höherer Plungergeschwindigkeit zu gelangen, wird über die Pumpe wieder eine Rückstellung nach spät durchgeführt. Dadurch kommt eine Einstellung von E2 zu E1 zustande.Starting from a basic interpretation is thus a double (opposite) start of production adjustment carried out. At partial load, the delivery begins via the handlebar shaft moved much earlier, from E to E2. To go in To reach areas of higher plunger speed is via the pump again a provision made late. This will result in a setting from E2 to E1 conditions.
Hierdurch wird eine wesentlich höhere Einspritzintensität zu einem frühen Zeitpunkt zur Rußsenkung erzielt. Die Verbrennung bei Teillast wird intensiviert, um die Ruß-Emission zu reduzieren.This results in a much higher injection intensity achieved soot reduction at an early stage. The Part-load combustion is intensified to reduce soot emissions to reduce.
Neben dem Nockenprofil über einen exzentrischen Lenker ist eine Verdrehung der Nockenwelle im Antriebszahnrad möglich. Die Verstellung des Förderbeginns erfolgt über die Förderbeginnkante die Plungers der Pumpe.In addition to the cam profile via an eccentric handlebar is a rotation of the camshaft in the drive gear possible. The adjustment of the beginning of delivery takes place via the delivery start edge the plungers of the pump.
Claims (5)
- Method of injecting fuel into a combustion chamber of a diesel engine by means of an injection nozzle (4) connected via a pressure line (3) to an injection pump (2), which has a pump piston, a control device (12) such as an eccentric device disposed between the pump piston (5) and a camshaft (16) as a means of adjusting the start of delivery, characterised in that the pump piston (5) is displaceable and has a control edge (6) co-operating with a control bore (8), whereby a high injection pressure is generated at the injection nozzle (4) by a combined displacement of the pump piston (5) in the injection pump (2) at part and weak load, which is in the range of approximately minus 20° to minus 10° of the crankshaft angle (K) before TDC of the engine piston and in a range of the pump piston (5) speed (V) of approximately 2.5 to 3.5 m/s, it being possible for the pump piston (5) of the injection pump (2) to be rotated with its control edge (6) via a control rod (15) in a "late" delivery direction and this rotating motion in the "late" direction has an axial positioning movement to the corresponding start of injection in the "early" direction imposed on it by the control device actively connected to the pump piston (5).
- Method as claimed in claim 1, characterised in that the high injection pressure occurs at a crankshaft angle (K) of approximately minus 14° before TDC of the engine piston and at a speed (V) of approximately 3 m/s of the pump piston (5).
- Device for implementing the method as claimed in claims 1 or 2, characterised in that the eccentric device (12) comprises a rocker arm (9) retained on an eccentric which is disposed with its free end between the pump piston (5) and a camshaft (16) by means of a roller (10) and which can be displaced relative to the camshaft (16) by means of the eccentric (12) into an injection position in the "early" direction.
- Device as claimed in claim 3, characterised in that the eccentric (12) can be adjusted in order to displace the roller (10) of the rocker arm (9) relative to the camshaft (16) depending on a part and weak load of the engine.
- Device as claimed in one of claims 3 or 4, characterised in that a direct rotation of the camshaft can be adjusted by means of a drive gear.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10132363 | 2001-07-04 | ||
DE10132363 | 2001-07-04 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1273795A2 EP1273795A2 (en) | 2003-01-08 |
EP1273795A3 EP1273795A3 (en) | 2004-08-25 |
EP1273795B1 true EP1273795B1 (en) | 2005-07-13 |
Family
ID=7690549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02008887A Expired - Lifetime EP1273795B1 (en) | 2001-07-04 | 2002-04-20 | Method and apparatus for injecting fuel |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1273795B1 (en) |
AT (1) | ATE299555T1 (en) |
DE (1) | DE50203607D1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2634389A1 (en) | 2012-02-28 | 2013-09-04 | Caterpillar Motoren GmbH & Co. KG | Self ignition operation of alternative fuel internal combustion engines |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE523676T1 (en) | 2008-06-18 | 2011-09-15 | Caterpillar Motoren Gmbh & Co | DEVICE FOR CONTROLLING THE OPERATION OF AN INTERNAL COMBUSTION ENGINE |
EP2677142B1 (en) | 2012-06-22 | 2015-02-25 | Caterpillar Motoren GmbH & Co. KG | Method and device for controlling the operation of dual-fuel engine |
EP2752561B1 (en) | 2013-01-07 | 2015-04-08 | Caterpillar Motoren GmbH & Co. KG | Method and device for controlling the operation of an internal combustion engine |
EP2752571B1 (en) | 2013-01-07 | 2015-08-19 | Caterpillar Motoren GmbH & Co. KG | Method and device for controlling the operation of a dual fuel engine |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT311727B (en) * | 1971-11-04 | 1973-11-26 | List Hans | Injection pump for diesel engines |
FR2417642A1 (en) * | 1978-02-20 | 1979-09-14 | List Hans | FUEL INJECTION ENGINE, ESPECIALLY DIESEL ENGINE WITH INSTALLATION FOR ADJUSTING THE INJECTION INSTANT |
DE19721841A1 (en) * | 1997-05-24 | 1998-09-03 | Mtu Friedrichshafen Gmbh | Fuel injection system for air compressing, self-igniting combustion engine |
-
2002
- 2002-04-20 EP EP02008887A patent/EP1273795B1/en not_active Expired - Lifetime
- 2002-04-20 DE DE50203607T patent/DE50203607D1/en not_active Expired - Lifetime
- 2002-04-20 AT AT02008887T patent/ATE299555T1/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2634389A1 (en) | 2012-02-28 | 2013-09-04 | Caterpillar Motoren GmbH & Co. KG | Self ignition operation of alternative fuel internal combustion engines |
WO2013127527A1 (en) | 2012-02-28 | 2013-09-06 | Caterpillar Motoren Gmbh & Co. Kg | Self ignition operation of alternative fuel internal combustion engines |
Also Published As
Publication number | Publication date |
---|---|
DE50203607D1 (en) | 2005-08-18 |
ATE299555T1 (en) | 2005-07-15 |
EP1273795A3 (en) | 2004-08-25 |
EP1273795A2 (en) | 2003-01-08 |
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