Abstract: An optimized unitary energetic system for an internal combustion engine comprising a gas distribution system for intake and exhaust associated with an optimized variable geometry combustion chamber with a regenerative cylinder wall lining to contain thermal energy and a microprocessor to correlate certain factors and control the gas distribution system and combustion chamber geometry for optimization of engine operation.

Abstract: The present invention provides an internal combustion engine comprising a combustion chamber, a piston mounted within the combustion chamber and arranged to be sealingly engaged with walls of the combustion chamber, the piston being arranged for reciprocating motion between a first position in which combustion chamber is of maximum volume and a second position in which the combustion chamber is of minimum volume, wherein the combustion chamber further comprises an inlet-outlet control valve means in a region of the combustion chamber within the minimum volume defined by the piston in its second position, a fluid fuel injection means in a region of the combustion chamber within the minimum volume defined by the piston in its second position, a combustible mixture ignition means located in the region of the combustion chamber within the minimum volume defined by the piston in its second position, and the engine comprises an antechamber comprising an inlet means and spent combustible mixture outlet means, which