公开(公告)号：US20180094708A1

公开(公告)日：2018-04-05

申请号：US15704953

申请日：2017-09-14

申请人： HONDA MOTOR CO., LTD.

发明人： Tsugio IKEDA ,  Shigeyuki HARA ,  Masaji NARUSHIMA ,  Koichi TSUTSUMI ,  Hiroto TAKEICHI

IPC分类号： F16H7/08 ,  F01L1/02 ,  F01L1/047 ,  F02F7/00 ,  F16H7/06 ,  F16H7/18

CPC分类号： F16H7/08 ,  F01L1/022 ,  F01L1/026 ,  F01L1/047 ,  F01L2001/0475 ,  F01L2001/0476 ,  F01L2001/0537 ,  F01L2101/00 ,  F01L2810/03 ,  F02F7/0043 ,  F16H7/06 ,  F16H7/18 ,  F16H2007/0842 ,  F16H2007/0872 ,  F16H2007/0893 ,  F16H2007/0897 ,  F16H2007/185

摘要： In an internal combustion engine including a driving-sprocket cam chain guide 70 for guiding a cam chain 47 along a driving sprocket 45, as viewed in a crankshaft axial direction, a guide body 71 of the driving-sprocket cam chain guide 70 extends beyond a winding termination point P of the cam chain 47 on the driving sprocket 45 to a position adjacent to a chain moving surface 51c of a cam chain tensioner 51, on which the cam chain 47 slides. The engine provides a cam-chain dropout preventing function to the cam chain guide, thus reducing load on the cam chain tensioner and improving durability of the tensioner lifter.