VALVE GEAR OF ENGINE

摘要

A valve train device for an engine including: a swing member 9 swingably driven by drive means 8; a control arm 10 disposed between a swing cam surface 9b formed on the swing member 9 and a rocker-side depressed surface 11d formed on a rocker arm 11; and a displacement mechanism for displacing contact points of the control arm 10 with the swing cam surface 9b and with the rocker-side depressed surface 11d, in which the rocker-side depressed surface 11d is formed in an arcuate shape about a center of swing (a) of the swing member 9, such that the rocker-side depressed surface 11d or its extension line 11d' passes in the vicinity of a center of swing (b) of the rocker arm 11.