Rotary Throttle Valve and utilisation of said throttle valve for the transfer of a fluid to a combustion chamber of an internal combustion engine

A rotary throttle valve for transferring a fluid between a fluid source and a combustion chamber of an internal-combustion engine, comprising at least one substantially cylindrical surface and a side wall. The rotary throttle valve includes at least one fluid flow channel having an inlet and an outlet, with the inlet belonging to the side wall of the valve and being positioned at a distance, which is not zero, from the rotation axis of the rotary valve, and the outlet belonging to the cylindrical surface of the valve and being radially offset with respect to the inlet.