Patent ID: 9500104
Filing Date: 2016-11-22
CPC Classification: F01L

Claim Text:
1. A variable valve lift apparatus comprising: a camshaft; a first moving cam including a plurality of cams having different shapes, having a first cam guide protrusion, rotating together with the camshaft, and being slidable in an axial direction of the camshaft; a second moving cam including a plurality of cams having different shapes, having a second cam guide protrusion, rotating together with the camshaft, and being slidable in the axial direction of the camshaft; a first operating device selectively extending out to guide the first cam guide protrusion to move the first moving cam in a first direction; a second operating device selectively extending out to guide the second cam guide protrusion to move the second moving cam in a second direction; a controller controlling operations of the first operating device and the second operating device; and valve opening and closing devices brought into contact with one of the plurality cams so that the valve opening and closing devices are selectively opened or closed, wherein the first cam guide protrusion and the second cam guide protrusion are positioned in opposite directions to move the first moving cam and the second moving cam in the first direction and the second direction, respectively, wherein each of the first and second operating devices comprises: wherein each of the first and second operating devices further comprises a pin housing, and wherein each of the first and second guide parts comprises: