公开(公告)号：US4903652A

公开(公告)日：1990-02-27

申请号：US386756

申请日：1989-07-31

申请人： Nathanial L. Field ,  Benjamin P. Winter

发明人： Nathanial L. Field ,  Benjamin P. Winter

IPC分类号： F02F1/10

CPC分类号： F02F1/108 ,  F02F2001/104 ,  Y10T29/49272

摘要： A method of casting-in-place iron cylinder liners in light alloy, preferably aluminum, engine blocks is made possible by a cylinder liner insert comprising at least two generally cylindrical cylinder liners which are joined together along aligned portions of the liners in a "semi-siamese" fashion. The cylinder liners are joined at the lower ends of the liners with the upper combustion ends remaining independent and unattached. Alternately, narrow ribs can be formed at or arched above the upper ends of the liners to join and stabilize the upper ends of the liners during cylinder block casting operations, with such ribs ultimately being machined off during block finishing operations.