A two-stroke cycle internal combustion engine and a method of charging same

摘要

A two-stroke cycle internal combustion engine comprises a cylinder block defining at least one cylinder bore. Further, a piston is reciprocatably received within the cylinder bore and an exhaust port is formed in one side of the cylinder bore and being operable by said piston. This engine is provided with at least one scavenging passage opening into said cylinder bore at a first scavenging port for inducing a first scavenging flow. This first scavenging flow starts at said first scavenging port, crosses said cylinder bore and terminates at said exhaust port. Further, there is provided a means for inducing a tumbling flow within said cylinder bore. <IMAGE>