Valve Control Management (VCM) is the name of a system under development by ABB Turbocharging, Switzerland and engine component specialist Schaeffler Technologies GmbH & Co. KG , Germany. It offers engine manufacturers a breakthrough technology for attaining low NOx emissions, optimal fuel efficiency and increased power density. Aimed at four stroke diesel and gas engines above 400 kW output, it’s an advanced variable valve train system, that allows variation of both valve timing and lift, reducing harmful exhaust emissions and allowing engine performance to be adapted to the operating profile of a given engine application.. [More]