BigPatents India

The invention concerns a two-stroke internal combustion engine supplied with gasoline, diesel, fuel, or other conventional fuel comprising a piston (2) - cylinder (1) assembly, said cylinder (1) providing exhaust ports (11), said piston (2) - cylinder (1) assembly providing a head (5) slidable within said cylinder (1) between the Top Dead Centre of the piston (2) stroke and a closure position of the exhaust ports (11), said slidable head (5) providing a transfer valve (9) for fresh air or fresh air - fuel mixture within the compression and burst chamber of the piston (2) - cylinder (1) assembly, sliding of said slidable head (5) inside the cylinder (1) being controlled by actuation means co-ordinated with the piston (2) actuation system, upward said slidable head (5) a fresh air or fresh air - fuel mixture system (13, 14) being provided for suction during the stroke of said slidable head (5) between the Top Dead Centre and the exhaust port (11) closure point.