Patent ID: 7421992

Claim:
A camshaft for, in particular, activation of the gas exchange valves of an internal combustion engine, comprising two coaxially mounted shafts rotatable in and against one another, namely a first and a second shaft ( 1 ; 2 ), first cams fixedly attached to the first shaft ( 1 ) and second cams fixedly attached to the second shaft ( 2 ), a main camshaft drive acting on both shafts ( 1 , 2 ), and a device for adjusting the angle of rotation of the first and second shafts with respect to one another by means of a first actuating drive on the one hand and on the other hand adjusting the angle of rotation of both shafts ( 1 , 2 ) of the camshaft jointly by a second actuating drive ( 4 ), characterized by the features the two actuating drives ( 3 , 4 ) each have a swash-plate mechanism having swash plates 3 ′; 4 ′, each mounted rotably about the joint camshaft axle on a swash-plate bearing ( 3 ″; 4 ″) and each being provided with a gear rim ( 3 V ; 4 V ) and each with at least one engaging piece ( 3 IV ; 4 IV ), the engaging pieces ( 3 IV ; 4 IV ) of the two swash plates ( 3 IV ; 4 IV ) cooperate directly with one of the two shafts ( 1 , 2 ), of the swash plates ( 3 ′; 4 ′), one cooperates via its respective first gear rim ( 3 v ) with one of the two shafts ( 1 ; 2 ) and the other cooperates by its respective second gear rim ( 4 v ) with a gear rim ( 9 ′) of an actuating drive shaft of the main drive.