Patent ID: 8104440

Claim:
A continuous variable valve lift device, comprising: a rocking cam having a rolling face contacting a rocker arm formed to press the rocker arm when pivoted; a rocking roller disposed above a drive cam and in rolling contact with an outer circumference of the drive cam; a control apparatus, which adjusts a relative position of the rocking roller as it rolls along the outer circumference of the drive cam; and a rocking apparatus, which pivots the rocking cam according to a position of the rocking roller such that a position where the rocker arm is contacted with the rolling face is changed depending on the position of the rocking roller, wherein the rolling face includes: a zero lift section that does not pivot the rocker arm when contacted with the rocker arm; and low and high lift sections that pivot the rocker arm at different angles, and wherein the low and high lift sections are substantially linear.