Piston with a standardized piston head in the case of a variable compression ratio

摘要

A method for producing a piston (1) for an internal combustion engine by means of a casting mold, whereby in a first method step by means of a casting process, a piston blank is produced, the casting core produced by means of a cooling channel (4) and the hollow space (10), and in a second method step, a piston head (3), a top land (5), a ring insert (6), a piston shaft (8) of the piston (1) and are mechanically worked in this case, a combustion chamber recess (12) in the piston head (3) as well as a hub bore (9) into the piston shaft (8) are introduced characterized in that, in the casting tool a the hub bore (9) can be positioned variably the definition of core, in order to piston (1) with different compression ratio (kh) can be realized, wherein the hub bore (9) for influencing a compression ratio (kh) variably in the piston shaft (8) can be introduced.