Patent ID: 6868811

Claim:
A variable valve actuation mechanism for use with an internal combustion engine, said engine including a rotary camshaft having a cam lobe, said mechanism comprising: a control shaft substantially parallel relative to and spaced apart from said camshaft; a rocker arm having a first end and a second end, said rocker arm carrying a roller, said roller engaging the cam lobe, said rocker arm pivotally coupled at said second end thereof to said control shaft; a link arm having a first end and a second end, said link arm being pivotally coupled at said first end thereof to said first end of said rocker arm; at least one output cam pivotally coupled to said second end of said link arm, each said at least one output cam configured for engaging a corresponding cam follower of the engine; and a spring configured for biasing said roller into contact with the cam lobe and for biasing said at least one output cam toward a starting angular orientation.