Patent ID: 8813712

Claim:
Piston ( 10 ) for an internal combustion engine, having a piston head ( 10 a ), a piston skirt ( 15 ), and a circumferential recess ( 25 ) configured between the piston head ( 10 a ) and the piston skirt ( 15 ), wherein the piston ( 10 ) has a piston base body ( 11 ) and a piston ring element ( 12 ), the piston base body ( 11 ) has a crown region ( 19 a ) of a combustion bowl ( 19 ) as well as the piston skirt ( 15 ), the piston ring element ( 12 ) has a piston crown ( 21 ), a wall region ( 19 b ) of the combustion bowl ( 19 ), a circumferential top land ( 22 ), and a circumferential ring belt ( 23 ) provided with ring grooves, the piston ring element ( 12 ) has a circumferential cooling channel ( 27 ) between the wall region ( 19 b ) of the combustion bowl ( 19 ) and the ring belt ( 23 ), closed with a closure element ( 26 ), the piston base body ( 11 ) and the piston ring element ( 12 ) have a circumferential joining seam ( 28 ) between the wall region ( 19 b ) and the crown region ( 19 a ) of the combustion bowl ( 19 ), in each instance, by way of which seam they are non-releasably connected with one another, the joining seam ( 28 ) forms an acute angle (α) with the longitudinal axis (M) of the piston ( 10 ).