VARIABLE VALVE DEVICE OF INTERNAL COMBUSTION ENGINE

A variable valve device (122) for an internal combustion engine (100) is equipped with a variable valve mechanism (10) capable of changing the working angle of an intake valve (110) while holding the maximum lift amount of the intake valve (110) constant. The variable valve device (122) retards the timing for closing the intake valve (110) as the load of the internal combustion engine (100) rises, and enlarges the working angle, while holding the timing for opening the intake valve (110) constant. The invention can provide operating characteristics of the intake valve (110) in accordance with the load of the internal combustion engine (100).