Camshaft drive mechanism configuration for an engine with a double line of cylinders

Control system for the valves of an internal-combustion engine with two V lines of cylinders, consisting of a secondary shaft to control the camshaft by means of chain or toothed belt drive, basically located at the centre of the V on the plane passing through the axis of the driving shaft of internal-combustion engine, and moved by it by means of the chain or toothed belt device. The control device controlling the secondary shaft, is adapted to control simultaneously a secondary device of said internal-combustion engine.