The fluid coupling is hydrokinetic transmission. The impellers perform like a centrifugel pump and hydraulic turbine. The oil moves by centrifugal force across the blades of the turbine towards the outside of the coupling. This absorbs the kinetic energy and develops a torque which is always equal to input torque thus causing rotation of the output shaft.
- At start-up, current peaks are reduced almost instantaneously.
- Protection of driving and driven member against overloads and stalling, due to slip.
- Load balancing with multi-motor drives.