Piston cooling arrangement for large two-stroke crosshead diesel engine has piston connecting rods delivering coolant to bell chamber with inner plug and jets

摘要

A large two-stroke crosshead diesel engine has piston rods (1) that engage with the inner face of the piston (2). The piston connecting rod incorporates a duct delivering liquid coolant to the lower face of the piston. The duct terminates in a bell chamber with an inner plug, and having a circular array of coolant discharge jets.