Direct injected internal combustion engine and method of operating

The engine has at least one inlet valve unit constructed with such heat dissipation measures that a range of the load-RPM mapping, with surface temperatures in the region of the inlet valve's belling (68) below 180 degrees, is increased with reference to the corresponding section of the load-RP...

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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 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:	The engine has at least one inlet valve unit constructed with such heat dissipation measures that a range of the load-RPM mapping, with surface temperatures in the region of the inlet valve's belling (68) below 180 degrees, is increased with reference to the corresponding section of the load-RPM mapping without these heat dissipation measures in such a way that when the engine is running a build-up of coking deposits on the inlet valve (20) is reduced. An Independent claim is included for a procedure for running an internal combustion engine, whereby during running of the engine in the range of the load-RPM mapping with an inlet valve temperature below 180 degrees, the cooling water temperature is lowered in relation to running outside this range.