Speed governor for internal combustion engines

Claim 1

In a speed governor, for internal combustion engines, including an automatic control system and a fuel dosage system therewith, the improvement in combination therewith comprising an electromechanical adjustment member that actuates the fuel dosage system and having a stationary part with at least two evenly wound sector-shaped stationary coils, and a movable part with a permanent magnet which is an at least dual-pole, axially magnetized ring having an axis of rotation and rotatably journalled in said stationary part, the magnetic field of said permanent magnet passing through said coils having winding axes located substantially parallel to the axis of rotation of said permanent magnet ring, said permanent magnet being arranged in such a way that a torque of predetermined magnitude and direction is effective thereon when current flows through said coils which are located stationary around the axis of rotation axially opposite said permanent magnet ring and an electrical adjustment control magnitude accordingly is supplied to said coils so that the electromechanical adjustment member converts electrical input magnitude into a mechanical output magnitude, whereby the torque is exactly proportional to the current according to the magnitude and direction thereof, said electromechanical adjustment member being actuated by electrical adjustment magnitude of the automatic control system, whereby an actual value corresponding to the instantaneous speed and a rated value corresponding to rated speed are supplied to the automatic control system and the electrical adjustment magnitude is produced dependent upon difference of these values.