Cylinder for internal combustion engine, has cylinder bearing surface with upper piston change zone and lower piston change zone for piston, where intermediate zone is provided between upper piston change zone and lower piston change zone

摘要

The cylinder (1) has a cylinder bearing surface (2) with an upper piston change zone (4) and a lower piston change zone (5) for a piston. An intermediate zone (6) is provided between the upper piston change zone and a lower piston change zone. The intermediate zone forms a large diameter opposite the upper piston change zone and the lower piston change zone.