公开(公告)号：US20180179986A1

公开(公告)日：2018-06-28

申请号：US15389521

申请日：2016-12-23

申请人： Caterpillar Inc.

发明人： Curtis J. Graham ,  Daniel T. Cavanaugh ,  Waylon S. Walker

IPC分类号： F02F3/28 ,  F02F3/20 ,  F02B77/08 ,  F02F3/26

CPC分类号： F02F3/28 ,  F02B23/0672 ,  F02B77/08 ,  F02B2275/00 ,  F02F3/22 ,  F02F2200/00 ,  F02F2200/04 ,  Y02T10/125

摘要： A piston including a piston crown, the piston crown defining a combustion bowl with a bowl base and bottom surface. A failure initiation structure is provided on the bottom surface of the combustion bowl to initiate favorable fracture at predetermined loads. Such favorable fracture may lead to the a separation of a fragment of the bowl base from the combustion bowl when a predetermined load or pressure is exceeded within the combustion bowl.