Operating method for direct injection internal combustion engine, especially for motor vehicles, comprises injecting fuel when exhaust gas flows back into suction section

Fuel is injected when the exhaust gas flows back into a suction section. Overlapping inlet and outlet valves in at least some of the working areas of the engines are controlled in such a way that exhaust gas flows back into a suction section of the engine via the inlet valve during valve overlap. Di...

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Bibliographische Detailangaben
1. Verfasser:	LANG, LEONHARD
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CONTROLLING COMBUSTION ENGINES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	Fuel is injected when the exhaust gas flows back into a suction section. Overlapping inlet and outlet valves in at least some of the working areas of the engines are controlled in such a way that exhaust gas flows back into a suction section of the engine via the inlet valve during valve overlap. Die Erfindung betrifft ein Verfahren zum Betreiben einer direkt einspritzenden Brennkraftmaschine, insbesondere eines Ottomotors mit Direkteinspritzung, insbesondere eines Kraftfahrzeuges, wobei wenigstens in Teilbereichen des Lastkennfeldes Ein- und Auslaßventile mit Überschneidung derart gesteuert werden, daß während der Ventilüberschneidung Abgas über das Einlaßventil in einen Ansaugtrakt der Brennkraftmaschine zurückströmt. Hierbei erfolgt eine Einspritzung von Kraftstoff zu einem Zeitpunkt, in dem Abgas in den Ansaugtrakt zurückströmt.