Patent ID: 7834495

Claim:
An electromagnetic rotary engine having a drive shaft and a power supply to drive the engine, the engine comprising: a plurality of rotors attached to the drive shaft; a plurality of permanent magnets spaced around and near the edges on each of the rotors; a plurality of electromagnets spaced around but separate from, and positioned adjacent to each of the rotors; means to indicate the position of each rotor as it turns; a first means for energizing each electromagnet to a first state to create a first magnetic polarity that causes the permanent magnets to be attracted to the electromagnets and rotating the drive shaft in a first direction when the position indicating means indicates that a permanent magnet is a predetermined distance before rotating in the first direction to be opposite to an energized electromagnet, and the energizing means ceases energizing each electromagnet when the position indicating means indicates that the permanent magnet is adjacent to an energized electromagnet; a second means for sequentially energizing each electromagnet, first to a second state of opposite polarity having a first level that just neutralizes the residual magnetism in the last mentioned electromagnet when the position indicating means indicates that the permanent magnet is adjacent to an energized electromagnet, and then to a second state of opposite polarity having a second, higher level that repels the permanent magnet on the rotor and rotates the drive shaft in the first direction; wherein when the second energizing means ceases energizing an electromagnet adjacent to one rotor the first energizing means energizes another electromagnet on another rotor and this sequence is repeated through all the plurality of rotors, and the sum of all the forces between permanent magnets and energized electromagnets on the plurality of rotors causes the drive shaft to rotate in the first direction.