公开(公告)号：US20170298791A1

公开(公告)日：2017-10-19

申请号：US15099656

申请日：2016-04-15

申请人： Caterpillar Inc.

发明人： Eric C. Fluga ,  Eric Donald Wiebrecht ,  Kerry Alan DelVecchio ,  Logan James Burke

IPC分类号： F01L13/00 ,  F01L1/34

CPC分类号： F01L13/0063 ,  F01L1/146 ,  F01L1/34 ,  F01L13/0005 ,  F01L13/0031 ,  F01L2001/054 ,  F01L2001/188 ,  F01L2013/001 ,  F01L2013/10 ,  F01L2105/00

摘要： An engine includes a block containing multiple valves, and a camshaft defining multiple cams for rotation about a camshaft axis. A valve lift assembly is operatively associated with a respective one of the cams and a respective one of the valves to transfer motion from the cam to the valve by reciprocal motion of the valve lift assembly along a lift axis. The assembly includes a follower and a follower control mechanism. The follower is disposed in contact with the cam at a contact point that defines a contact path extending along a surface of the cam as the cam rotates about the camshaft axis. The follower is moveable through an adjustment range to change the position of the contact point along the contact path at a given angular position of the cam. The follower control mechanism is operable to control the movement of the follower within the adjustment range.