VARIABLE VALVE LIFT APPARATUS

摘要

A variable valve lift device is provided decrease fabrication cost through a simple configuration because there is no need to process the shape of the contact unit with a cam in a curvature. A variable valve lift device comprises low lift cams: a high lift cam which is equipped between the low lift cams; a low lift tappet body(200) which selectively contacts with the low lift cam; a high lift tappet body(300) which always contacts the high lift cam between the low lift tappet bodies; a guide unit(400) which reciprocates vertically the low lift tappet body and the high lift tappet body together; and a lost motion spring(480) which is placed between the guide unit and the low lift tappet body.