Patent ID: 7628134

Claim:
Piston ( 1 ) for an internal combustion engine, having a piston crown ( 4 ), having two pin boss supports ( 9 , 9 ′) molded onto the piston crown ( 4 ) for two pin bosses ( 11 , 11 ′), whereby the pin boss supports ( 9 , 9 ′) are disposed set back relative to the radially outer edge of the piston crown ( 4 ), in the direction of the piston longitudinal axis ( 13 ), having two skirt elements ( 14 , 14 ′) that connect the pin bosses ( 11 , 11 ′), and having a ring-shaped cooling channel ( 6 ) disposed in the edge region of the piston crown ( 4 ), the radially outer delimitation of which is formed by a ring wall ( 7 ) molded onto the piston crown ( 4 ), the radially inner delimitation of which is formed partly by the pin boss supports ( 9 , 9 ′) and partly by a ring rib ( 8 ) molded onto the piston crown ( 4 ), and whose skirt-side delimitation is formed by a two-part cover ( 17 , 17 ′), wherein a circumferential projection ( 16 ) is formed close to the cooling channel ( 6 ), on the piston outside, that the cover consists of two semi-circular half-shells ( 17 , 17 ′), which each have a circumferential groove ( 18 ) on the inside facing the piston, having a groove shape that is complementary to the shape of the projection ( 16 ), to such an extent that the half-shells ( 17 , 17 ′) can be pushed onto the projection ( 16 ) by way of the groove ( 18 ), in each instance, that the half-shells ( 17 , 17 ′) each have an apron ( 19 ) on the piston crown side, by way of which the half-shells ( 17 , 17 ′) rest against the skirt-side face ( 20 ) of the ring wall ( 7 ), and that the half-shells ( 17 , 17 ′) have snap-in connections ( 25 , 25 ′) in the region of their contact surfaces ( 26 , 26 ′, 28 , 28 ′), by means of which the half-shells ( 17 , 17 ′) that have been pushed onto the projection ( 16 ) can be connected with one another.