A valve opening and closing timing control device includes a phase control
unit having a drive side rotation member for rotating in synchronization
with a crankshaft of an internal combustion engine, a driven side
rotation member provided coaxially with the drive side rotation member
for rotating in synchronization with a camshaft of the engine and a phase
control mechanism for controlling a relative rotational phase between the
drive side member and the driven side member by being supplied with an
operation fluid. The phase control unit is provided at each set of
camshafts of the internal combustion engine having plurality sets of
camshafts. The valve timing control device further includes a first pump
driven by the internal combustion engine and a second pump driven by a
motor, wherein the first pump supplies the operation fluid to all of the
phase control units provided at the each set of camshafts and the second
pump supplies the operation fluid only to the phase control unit provided
at one set of camshaft.