Continuous variable valve timing and lift system

An automotive technology that allows the intake and/or exhaust valve timing to be infinitely varied during engine operation throughout the RPM range is designed which is the Continuous Variable Valve Timing and Lift system (CVVTLS). There are no discrete stages for affected components, as in the continuous variable style system which operates by two erver-control systems to control four-bar linkage and cam after the threshold RPM for power transfer. Through the smoothly operating, CVVTLS enhances the features of a fully variable valve timing and lift control system. Mean while, on the low RPM, the pumping losses is reduced by serve controlled.