VALVE TRAIN DEVICE

摘要

In a valve drive train device of an internal combustion engine, comprising a phase adjustment device for the adjustment of a phase position between a primary cam and a secondary cam which belong to a same category and which are arranged coaxial with one another, at least one is assigned to a pair of cams for executing a valve lift changeover so as to allow the valve drive train device to be instantly adjusted to a momentary operating situation.