During engine combustion, piston engines produce unnecessary twisting vibrations of the crankshaft that interfere with the operation of the entire powertrain. This is especially true for vehicles equipped with a diesel engine.
This “harmful vibration” can even be expressed quantitatively. The amplitude of the crankshaft torsional vibration is approximately 30%. Torsional vibrations in the crankshaft continuously accelerate or decelerate the belt transmission and connected auxiliary devices in operation. This will cause auxiliary devices driven with relatively slow torque, such as generators, to place a huge maximum load on the auxiliary drive. This results in stronger and more wear-prone belt vibrations along the entire length.
Preventing this twisting vibration is almost impossible. And this vibration will inevitably be transferredto the V-belt that drives the engine's auxiliary devices (such as generators). As a result, the service life of the drive belt is reduced, in the most extreme cases, by almost 30,000 kilometers.