Patent ID: 8584636

Claim:
A valve train for an internal combustion engine comprising a camshaft and a variable cam phaser connected to said camshaft for driving said camshaft, said engine comprising a crankshaft providing a drive torque for said variable cam phaser through a drive member coaxial with said camshaft, wherein said variable cam phaser comprises: an input shaft rotationally coupled to said drive member; an output shaft rotationally coupled to said camshaft and coaxial with said input shaft; an adjusting means drivingly connecting said input and output shafts enabling said input and output shafts to be selectively, angularly adjusted while maintaining driving engagement therebetween, wherein the adjusting means comprise an electric actuator for selectively operating an angular adjustment; wherein said input and output shafts are coupled to said drive member and camshaft via respective, rotationally stiff, flexible coupling means.