Fluid Coupling

Characteristics

The hydrodynamic coupling is a device of transmission of primary importance and has a large field of application. It is simultaneously a gradual starter and a stress eliminator and it is able to create in every moment and automatically and equilibrium between the motor and transmission of the operating machine: therefore it eliminates every dangerous and unexpected overload and protects the motor and the transmissions as well.

Advantages

The Hydrodynamic coupling, inserted into a transmission for starting up a high inertia machine controlled by ab asynchronous electric motor with Direct on Line Startin, has the following advantages:

1. Eliminate the rigidity of the mechanical transmissions and guarantess the flexibility of a Hydraulic transmission, withstanding all the shocks, torsional vibrations and unexpected overloads, and protect the motor and driving machine.
2. Reduces peak current during start-up. The electric motor rapidly reaches the operating speeds with low peak current.
3. Permits smaller motor sizes according to the power demand of the driven machine.
4. Permits a high stop start duty cycle even under load, sudden changes of direction and plug(reverse) braking.
5. Distributes the load installations where two or more motors are installed. The Hydrodynamic coupling allows every motor to reach its own operation speed, automatically distributing load demand.