Meaning of CAMSHAFT in English
A shaft with cam lobes (bumps) which is driven by gears, a belt, or a chain from the crankshaft . The lobes push on the valve lifters to cause the valves to open and close. The camshaft turns at half the speed of the crankshaft . Also see double-overhead cam , overhead cam , race camshaft , and three-quarter race camshaft .
English dictionary of automotive terms. Английский словарь автомобильных терминов. 2012