Method, engine cylinder, and engine with opposed semi-loop scavenging

An engine cylinder, comprising:

• two opposite, opposingly driven pistons, wherein in each case one outlet region for exhaust gas and in each case one flow transfer region for fresh gas supplied from the crankcase are formed in the region of the bottom dead center (BDC) of each of the two pistons;
• wherein the outlet region and the flow transfer region of each piston are formed in each case in a separate, delimited circumferential portion of the cylinder inner wall;
• wherein the two outlet regions for the exhaust gas, which are situated in the respective bottom dead center regions (BDC) of the pistons, are arranged offset with respect to one another by 180° about the cylinder circumference;
• wherein the two flow transfer regions for fresh gas which are situated in the respective bottom dead center regions (BDC) of the pistons are arranged offset with respect to one another by 180° about the cylinder circumference;
• and
• wherein each flow transfer region has a number of flow transfer windows which are formed in the cylinder inner wall and by way of which the fresh gas supplied from the crankcase is admitted in a directed manner in the direction of a wall region which is situated on said side of the cylinder inner wall and which adjoins the respective flow transfer region in the cylinder longitudinal direction.