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End pivot rocker arm valve train
In end pivot rocker arm valve trains, the camshaft is positioned above the valves and operates several lifters simultaneously using two cams which, by means of two rollers (roller-type end pivot rocker arm) mounted in the lever, act on two or three insert elements. The design with two insert elements is also referred to as dual end pivot rocker arm, with three insert elements as triple end pivot rocker arm. This type of valve train is typically used on multi-valve diesel engines. Although in this case the valves are mounted inversely, the system allows all valves to be operated by a single camshaft while leaving sufficient installation space to accommodate the injection nozzles.