VALVE TRAIN FOR INTERNAL COMBUSTION ENGINES FOR ACTUATING GAS EXCHANGE VALVES

摘要

A valve train for actuating a gas exchange valve of an internal combustion engine includes at least one camshaft configured to be driven by a crankshaft of the internal combustion engine and includes a camshaft tube. At least one cam support is disposed on the at least one camshaft so as to be rotationally engaged and axially displaceable, with respect to the at least one camshaft, the at least one cam support including an identical base circle portion and a plurality of cam profiles differing from one another. A switching shaft is disposed in the camshaft tube and is configured to rotate together with the camshaft tube. A dog operatively connects the at least one cam support to the switching shaft. A displacement piece is connected to the switching shaft and is configured to be rotationally engaged with and axially displaceable on the camshaft tube.