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. ...

Method for detection failure in a cam profile switching system arranged at an internal combustion engine provided with an even number of cylinders constituting two separate groups of cylinders, a first switching means (22,17) responsible for performing cam...

An internal combustion engine is presented, in which the valves (11) are adapted to be actuated by a valve actuation arrangement (12), the valve actuation arrangement (12) comprising actuation adjustment mechanisms (17), adapted to assume a first position ...