Patent ID: 6550462
Filing Date: 2003-04-22
Classification: F02P

Abstract:
An engine ignition system comprising:a rotor synchronized to rotate with the rotation of an engine, the rotor having an outer periphery; a primary coil; a secondary coil; an iron core fixedly disposed opposite the outer periphery of the rotor and having a plurality of legs positioned opposite the outer periphery of the rotor and spaced in the peripheral direction of the rotor, wherein the primary and the secondary coil are wound concentrically around the iron core; at least one permanent magnet fitted to the iron core; a spark plug, operatively synchronized with the rotation of the rotor; and an inductor fixedly provided at the outer periphery of the rotor, the inductor forming a magnetic path for the magnetic flux generated by the at least one permanent magnet between a pair of the legs adjacent to each other in the peripheral direction of the rotor, wherein winding of the primary coil and the secondary coil around the iron core, energizes the spark plug at time the inductor passes the pair of legs.