The influence of the stator means that the fluid entering the impeller is already in motion; the fluid does not have to be accelerated from a standstill. The fluid moves into the blades, where its momentum is accelerated. The acceleration whips the fluid through the impeller and throws it toward the turbine with greatly increased force.

Through this efficient management of the fluid, the turbine torque actually becomes greater than the engine’s torque. In effect, the torque is multiplied.

Torque multiplication by the stator is only possible when there is a great difference in speed between the impeller and the turbine. The greater the speed difference between the two, the greater the torque multiplication.