VARIABLE VALVE LIFT APPARATUS OF ENGINE FOR VEHICLES

摘要

A variable valve lift device of an automotive engine is provided to vary a lift of a valve because the rotation angle of the lift arm is controlled while the circulation arm moves to front and back with the lift change of the eccentric cam. A variable valve lift device of an automotive engine comprises a swing arm(6) which is supported by a hydraulic tappet(10) and drives air intake valves(2,4); a lift arm(20) which pressurizes rollers(14,16) arranged in the central top of the swing arm; and a turning arm(38) which is arranged in the opposite side to the air intake valve of the lift arm. The turning arm turns the lift arm towards the air intake valve according to driving of a cam(36) arranged between the lift arms.