Valve timing control device and valve timing control method for engines

摘要

A valve timing control device for an engine adapted to change rotational phases of an intake cam shaft and an exhaust cam shaft by an intake cam shaft phase changing mechanism and an exhaust cam shaft phase changing mechanism each provided with an input member to which cam shaft driving power is transmitted and an output member for changing a phase of the cam shafts with respect to said input member, wherein the respective output members are connected to the exhaust and intake cam shafts, respectively <IMAGE>