Insert for piston of internal combustion engine i.e. diesel engine, has supporting and cavity base parts that are arranged radially at distance from each other and connected with one another by covers, such that cooling channel is formed

摘要

The insert (10) has a ring supporting part (11) and a cavity base part (13) that are arranged radially at a distance from each other and connected with one another by covers (15a, 15b) in such a manner that a circulating cooling channel (12) is formed. The covers are arranged axially opposite to each other and connected with the parts by welding or soldering, where the parts are made from a fiber-reinforced material and the insert is designed as a multi-piece component. The base part has a cavity area (13a) that forms a cavity edge reinforcement in a piston head. An independent claim is also included for a piston for an internal combustion engine comprising a piston head and an insert.