Infinitely variable compression ratio and single stroke length mechanism or dual stroke length mechanism of reciprocating 2-cycle or 4-cycle internal combustion engine

An infinitely variable compression ratio and single stroke length mechanism or dual stroke length mechanism of reciprocating 2-cycle or 4-cycle internal combustion engine comprises:

• a mirror-image planetary-gear assembly;
• a gear-pin assembly;
• a piston-and-connecting rod assembly;
• the mirror-image planetary-gear assembly comprises a first planetary-gear assembly and a second planetary-gear assembly;
• the first planetary-gear assembly and the second planetary-gear assembly each comprise a sun gear, a primary planet gear, a plurality of secondary planet gears, and a ring gear;
• the first planetary-gear assembly and the second planetary-gear assembly being mounted offset from each other;
• the sun gear from the first planetary-gear assembly and the sun gear from the second planetary-gear assembly being concentrically positioned with each other about a main rotation axis;
• the primary planet gear from the first planetary-gear assembly and the primary planet gear from the second planetary-gear assembly being concentrically positioned with each other along a shared rotation axis;
• the gear-pin assembly being torsionally and eccentrically connected in between the primary planet gear from the first planetary-gear assembly and the primary planet gear from the second planetary-gear assembly;
• and
• the piston-and-connecting rod assembly being mechanically coupled to the gear-pin assembly.