Variable valve lift device and valve apparatus for vehicle engine using the same

摘要

A variable valve lift device and a valve apparatus for a vehicle engine may include a valve configured to open/close a combustion chamber, a cam having a predetermined cam profile and rotatable by receiving a power generated in the combustion chamber, a cam side rocker arm rotatable by the cam, a rocker shaft penetratively mounted into the cam side rocker arm, a valve side rocker arm installed on the rocker shaft to apply a pressure for opening the valve while being turned by the cam side rocker arm, a hydraulic interval adjustment device installed in the cam side rocker arm to adjust an interval between the cam side rocker arm and the valve side rocker arm, and a hydraulic interval maintaining device configured to maintain the interval between the cam side rocker arm and the valve side rocker arm adjusted by the hydraulic interval adjustment device.