公开(公告)号：US20190107076A1

公开(公告)日：2019-04-11

申请号：US15824504

申请日：2017-11-28

申请人： Lombardini S.R.L.

发明人： Paolo Fregni ,  Simone Gaioli ,  Massimiliano Bonanni

IPC分类号： F02F3/26 ,  F02B23/06 ,  F02F3/16

摘要： A piston and process for manufacturing a piston includes an upper part providing an upper combustion surface including a top land, a land ring and a combustion bowl. An undercrown surface is formed under the combustion bowl. A lower part including pin bosses and a piston skirt are formed under the undercrown surface. At least one of the upper part and the lower part are formed with metal injection molding.

公开(公告)号：US20200088129A1

公开(公告)日：2020-03-19

申请号：US16690603

申请日：2019-11-21

申请人： Lombardini S.R.L.

发明人： Paolo Fregni ,  Simone Gaioli ,  Massimiliano Bonanni

IPC分类号： F02F3/26 ,  F02F3/00 ,  F02F3/16 ,  F02B23/06

摘要： A piston and process for manufacturing a piston includes an upper part providing an upper combustion surface including a top land, a land ring and a combustion bowl. An undercrown surface is formed under the combustion bowl. A lower part including pin bosses and a piston skirt are formed under the undercrown surface. At least one of the upper part and the lower part are formed with metal injection molding.