INTERNAL COMBUSTION ENGINE COMPRISING DIRECT INJECTION AND A METHOD FOR OPERATING THE SAME

This invention concerns an internal combustion engine, especially an Otto engine, especially of a motor vehicle, with a fuel injector (40), which is arranged and designed in such a way that it injects the fuel (42) directly into a combustion chamber (16) of working cylinders (14) of the internal com...

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Bibliographische Detailangaben
Hauptverfasser:	SUCK, GERRIT, SOEHLKE, GUENTER, SPIEGEL, LEO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CONTROLLING COMBUSTION ENGINES CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ENGINE PLANTS IN GENERAL HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	This invention concerns an internal combustion engine, especially an Otto engine, especially of a motor vehicle, with a fuel injector (40), which is arranged and designed in such a way that it injects the fuel (42) directly into a combustion chamber (16) of working cylinders (14) of the internal combustion engine, and with at least one intake valve unit per working cylinder (14), which comprises an intake valve and an intake valve seat. In this regard, at least one intake valve unit is designed with means that hinder heat dissipation in such a way that increased surface temperatures of more than 380° C. develop in the area of the neck (68) of the intake valve (20) in at least one predetermined region (112) of the load-speed characteristic diagram.