Brennkraftmaschine mit variabler Nockenwellen-Synchronisation und mit einer Auslaßphase variabler Dauer

摘要

A reciprocating four-stroke internal combustion engine includes a variable exhaust valve operating system for changing the duration of an exhaust valve opening event and also a camshaft drive for rotating a valve operating camshaft and adjusting the rotational timing of the camshaft with respect to the crankshaft.