Internal regenerative combustion engines with thermal integrated optimized system

Claim 1

An optimized unitary energetic system for an internal combustion engine comprising: a block having a working cylinder with cylinder walls; a piston with a piston head reciprocal in the cylinder; a cylinder head connected to the block and capping the working cylinder having a gas distribution system for intake and exhaust associated with an optimized valve timing system, wherein the cylinder walls, piston head, and cylinder head define a main combustion chamber; a variable geometry precombustion chamber having a cylinder space with a cross sectional area substantially smaller than the cross section of the working cylinder and a passage connecting the precombustion chamber with the working cylinder, the precombustion chamber including a slide piston reciprocal in the cylinder sopace wherein the effective volume of the cylinder space is varied by the positioning of the slide piston, and wherein the slide piston includes a piston profile complimentary to a portion of the connecting passage for restricting the passage during periods of high compression in the working cylinder, and including further, means for varying the position of the slide piston in the space; and, injection means for timed injection of fuel into the precombustion chamber.