Patent ID: 7409934

Claim:
A variable valve actuation system for inclusion in an internal combustion engine between a camshaft and a plurality of roller finger followers to variably actuate a plurality of associated engine combustion valves to vary at least one of a timing of valve opening, timing of valve closing, an amplitude of valve lift, or duration of valve lift, said system including a variable valve actuation sub-assembly comprising: a) a rocker pivot shaft having a first axis disposed parallel to an axis of rotation of said camshaft defined as a second axis; b) a plurality of rocker sub-assemblies pivotably disposed on said rocker pivot shaft for rotation about said first axis, each of said rocker sub-assemblies having a contact surface for following a lobe of said camshaft and having an output cam for engaging a one of said plurality of roller finger followers; and c) a control shaft having a plurality of crank elements extending from a control shaft axis, defined as a third axis parallel to said first and second axes, said crank elements being supportive of said rocker pivot shaft at a radial distance from said control shaft axis.