Efficient Utilization of the Gas Exchange Advantages of an Infinite Variable Mechanical Valve Train System

Since 2010 Pierburg has been involved in development, application and production of variable valve actuation (VVA) systems. UniValve, UpValve and FlexValve are recognized, fully variable mechanical VVA upgrades for SI- as well as for Diesel engines. This paper reports on layout and application of UpValve and highlights potentials to utilize its gas exchange advantages.