Ventiltriebssystem
Ventiltriebssystem refers to the system within an internal combustion engine responsible for controlling the intake and exhaust of the fuel-air mixture and exhaust gases. Its primary function is to open and close the engine's valves at precisely the right moments in the combustion cycle. The main components typically include a camshaft, which is a rotating shaft with lobes that push on followers. These followers, in turn, actuate rocker arms or directly push on valve stems. The camshaft is usually driven by the engine's crankshaft through a timing belt, timing chain, or gears, ensuring synchronization between valve operation and piston movement. Different configurations exist, such as overhead valve (OHV), single overhead camshaft (SOHC), and double overhead camshaft (DOHC), each offering varying degrees of efficiency and performance. The precise timing of valve opening and closing is critical for optimal engine performance, fuel economy, and emissions control. Variations in valve timing can also be employed to enhance specific engine characteristics.