A cooling channel piston for an internal combustion engine which includes a piston bottom and a piston shaft that are joined thereto of a friction welding process. The piston bottom and the piston shaft jointly form a cooling channel. An annular wall which radially delimits the cooling channel towards the outside is formed by the piston bottom and/or the piston shaft. The annular wall can be sealed by a welding process once the piston bottom and the piston shaft have been joined together.
申请公布号
DE502005010525(D1)
申请公布日期
2010.12.23
申请号
DE20055010525T
申请日期
2005.09.29
申请人
KS KOLBENSCHMIDT GMBH
发明人
GNIESMER, VOLKER;LUZ, GERHARD;MUELLER, JOCHEN;SCHALLER, CHRISTIAN;SCHMITZ, ERNST PETER;KOLBE, PETER;DAMBACHER, JOSEF