Patent ID: 7500466

Claim:
A system for actuating at least two engine valves of the same type in an internal combustion engine wherein engine valves of the same type are selected from the types consisting of intake valves, exhaust valves and auxiliary valves, comprising: a first master piston and slave piston lost motion system adapted to actuate a first engine valve in a first engine cylinder; a second master piston and slave piston lost motion system adapted to actuate a second engine valve in the first engine cylinder; a control valve in hydraulic communication with the first and second master piston and slave piston lost motion systems; a hydraulic fluid accumulator in hydraulic communication with the control valve when the control valve is in a first position; and means for clipping motion of the first master piston and slave piston lost motion system when the control valve is in a second position, said means for clipping motion including a clipping passage extending to an ambient.