[HEINSTEIN AXEL, STORCH AXEL, PILGRAM GUIDO, RIES-MUELLER KLAUS, NOWAK DETLEF] <P>PROBLEM TO BE SOLVED: To construct an internal combustion engine capable of maintaining the good quality of combustion by achieving a good emission mass value over as long a time as possible and capable of realizing as much cost reduction as possible. <P>SOLUTION: A cooling apparatus for cooling compressed sucked air is connected to at least one heat exchanger, and the heat exchanger cools the fuel supplied to an injection apparatus and/or an area in which the injection apparatus is incorporated, and/or the injection apparatus itself. <P>COPYRIGHT: (C)2004,JPO&NCIPI

[Heinstein, Axel, Storch, Axel, Pilgram, Guido, Ries-Mueller, Klaus, Nowak, Detlef] DE,70442 Stuttgart,Postfach 30 02 20;

[HEINSTEIN, Axel, STORCH, Axel, PILGRAM, Guido, NOWAK, Detlef, HEYSE, Joerg, KOEHLER, Robert] Postfach 30 02 20 70442 Stuttgart;Wenntalstr. 22 71299 Wimsheim;Moerikestr. 11 71696 Moeglingen;Allensteiner Weg 5 71701 Schwieberdingen;Badener Str. 99 74074 Heilbronn;Elser-Ring 22 74354 Besigheim;Luchsweg 7 75378 Bad Liebenzell/Monakam Disclosed is a fuel injection valve (1) for directly injecting fuel into a combustion chamber (39) of an internal combustion engine. Said fuel injection valve (1) comprises an excitable actuator (10), a valve needle (3) that is effectively connected to the actuator (10), is impinged upon by a return spring (23) in a closing direction, and actuates a valve closing member (4) which forms a sealing seat along with a valve seat area (6) embodied on a valve seat member (5), and at least two spray ports that are configured inside the valve seat member (5). A coating (38) is embodied on an external face (37) of the valve seat member (5), which faces the combustion chamber (36) of the internal combustion engine, and/or the maximum number of spray ports (7) provided is eight, and/or a distance between the valve closing member (4) and the valve seat member (5) is smaller than 20 µm, and/or the spray ports (7) expand in a fuel-spraying direction.

[Axel Heinstein, Axel Storch, Guido Pilgram, Klaus Ries-Mueller, Detlef Nowak, Stefan Lauter, Robert Koehler, Jens Botte] DE Stuttgart In a method for operating an internal combustion engine of a motor vehicle, in particular, pressurized fuel is conveyed to a fuel accumulator. The fuel is injected into a combustion chamber via a fuel injector. Coking of the fuel injector is determined. A first fuel-pressure increase is implemented when the coking exceeds a threshold value.

[Heinstein, Axel, Storch, Axel, Pilgram, Guido, Ries-Mueller, Klaus, Nowak, Detlef] DE,70442 Stuttgart,Postfach 30 02 20;

[GLASER, Andreas, HEINSTEIN, Axel, STORCH, Axel] Postfach 30 02 20 70442 Stuttgart;Wildunger Str. 60 70372 Stuttgart;Wasenweg 14/1 71299 Wimsheim;Reichenbergerstr. 19 74321 Bietigheim-Bissingen The invention relates to a method for operating an internal combustion engine comprising at least one injection valve (11) with an electrically controlled actuator (12), the injection valve (11) having a non-linear progression of the relationship between the injection duration and the injection quantity, at least in one range of an injection duration between a lower threshold (ti_min) and an upper threshold (ti_max). According to said method, an injection duration (ti) is determined from a required quantity of fuel (rw_k) and a required injection duration (ti_erf) is determined from said required quantity of fuel (rw_k). When the required injection duration (ti_erf) is in the range between the lower threshold (ti_min) and the upper threshold (ti_max) an injection duration (ti_aus) with a value outside the range between the lower threshold (ti_min) and the upper threshold (ti_max) is output.

[HEINSTEIN, Axel, STORCH, Axel, PILGRAM, Guido, NOWAK, Detlef, HEYSE, Joerg, KOEHLER, Robert]

[HEINSTEIN AXEL, STORCH AXEL, PILGRAM GUIDO, RIES-MUELLER KLAUS, NOWAK DETLEF] DE

[Axel Heinstein, Axel Storch, Guido Pilgram, Klaus Ries-Mueller, Detlef Nowak, Stefan Lauter, Robert Koehler, Jens Botte] DE Wimsheim In a method for operating an internal combustion engine of a motor vehicle, in particular, pressurized fuel is conveyed to a fuel accumulator. The fuel is injected into a combustion chamber via a fuel injector. Coking of the fuel injector is determined. A first fuel-pressure increase is implemented when the coking exceeds a threshold value.

[Manfred Vogel, Gernot Wuerfel, Axel Heinstein, Klaus-Peter Gansert, Axel Storch, Roman Grzeszik, Klaus Ries-Mueller, Detlev Nowak, Stefan Lauter, Robert Koehler, Paulo Ricardo] DE Ditzengen An ignition system for an internal combustion engine, having a combustion chamber and a fuel injection device which injects a fuel directly into the combustion chamber in stream-guided fashion, is configured so that the ignition system has a positive polarity.