Patent ID: 7621254

Claim:
An internal combustion engine comprising: a central power ring having a toroid shaped cylinder, a power rotor mounted for rotation with respect to said central power ring, said power rotor having a pair of toroid shaped power pistons secured to opposite quadrants of said power rotor so that said power pistons are positioned to rotate within said central power ring cylinder, said central power ring intersected by a pair of charge rings having toroid shaped cylinders, said charge rings positioned to intersect opposite quadrants of said central power ring at substantially right angles, each of said charge rings including a charge rotor having a pair of toroid shaped charge pistons secured to opposite quadrants of said charge rotor so that said toroid shaped charge pistons are positioned to rotate within each respective said charge ring cylinder, a rear face of each said charge piston including a pocket for containing and transferring said compressed air and fuel charge to said central power ring, said power rotor and said charge rotors being connected together so that said charge rings rotate through an angle of rotation that is mechanically controlled by an angle of rotation of said power rotor, whereby a pair of combustion chambers are formed completely within said central power ring between a side surface of each of said charge pistons and a face of each power piston, whereby each of said charge rings is constructed and arranged to draw in fresh air through an intake port and compress said fresh air, a fuel supply means for introducing fuel to said compressed fresh air, whereby said compressed fuel and air charges is transferred to said respective combustion chamber, whereby a spark plug is positioned in each of said combustion chambers to ignite said air fuel mixture in each of said combustion chambers to cause rotation of said power rotor, thereby forcing said combustion chamber to increase in volume, and whereby exhaust gas from a previous combustion is positioned on an opposite side of each said power piston forcing said exhaust gas out through an exhaust port positioned in said central power ring.