Enclosed coolant tube manufacturing method for use in piston, involves incorporating coolant tube with circular opening in piston, and fixing tube cover in opening using adhesives to cover opening, where tube is made of forged steel

摘要

The method involves incorporating a coolant tube (9) with a circular opening (10) in a piston (1), where the tube is made of forged steel. A coolant tube cover (12) is manufactured from steel rings. The cover (12) is fixed in the opening of the tube using suitable adhesives to cover the opening. The cover has two semi-circular components that are fixed by a chip removing production process.