INTERNAL COMBUSTION ENGINE

摘要

The invention relates to an internal combustion engine, provided with a crankshaft (4) and one or several cylinders (1) provided on the wall thereof with exhaust ports (2) and closed at the top by a cylinder head (3) provided with intake ports (14); each cylinder (1) accommodating an engine piston (6) connected to the crankshaft (4) and a coaxial auxiliary piston (7) opposite the engine piston (6), defining an intake chamber (8) and a combustion chamber (9); said auxiliary piston (7) axially determining on the side of the combustion chamber (9) a housing (10) that communicates with the intake chamber (8) via transfer ports (11), the housing (10) of which includes a secondary piston (12) which opens and closes the transfer ports (11) in a back-and-forth movement between a rear position and a forward position.