Rotating actuator system for controlling valve actuation in an internal combustion engine

In an internal combustion engine comprising an engine valve and a valve actuation motion source operatively connected to the engine valve by at least one motion conveying component, a system for controlling actuation of the engine valve, the system comprising:

• a pivot;
• a torsion spring, having first and second legs, operatively connected to the pivot;
• a lever arm, adjustably affixed to and extending away from the pivot, rotatable about a pivot axis of the pivot between a retracted position and an extended position and vice versa relative to a motion conveying component of the at least one motion conveying component;
• and
• a housing having a pivot bore formed therein and the pivot rotatably disposed in the pivot bore, the housing further comprising a first opening intersecting with the pivot bore and a second opening intersecting with the pivot bore such that the first and second legs extend out of the first opening and the lever arm extends out of the second opening,
• wherein, in the retracted position, the lever arm has substantially no effect on actuation of the engine valve and, in the extended position, the lever arm is positioned to contact the motion conveying component thereby controlling actuation of the engine valve,
• and wherein a first force, when applied by the motion conveying component to the lever arm, maintains the lever arm in the extended position.