Dynamic test benches with the ROTODIFF can be operated in a mechanically closed loop. The torque is introduced at the test bench by controlling the pressure of the ROTODIFF. A delta rotational speed is also required to control the torque.
With electronically controlled operating and control systems, important values such as the hydraulic pressure, main and differential speeds can be monitored, displayed and set.
1 Roller piston / 2 Cam / 3 Rotor / 4 Distributor / 5 Transfer seal / 6 Connection block (stationary part) / P high pressure / T low pressure
Outstanding weight / torque ratio
The ROTODIFF hydraulic drive weighs on average only 50% as much as a gear unit with the same rated torque.
Overload-protected
A series of protection functions and a safety pressure valve protect all mechanical components of the drive against overload. High torque capacity.
Outstanding controllability and operating safety
The hydraulic system pressure is proportional to the torque, which means that the pressure is used directly as a control variable or correcting variable in a control loop (automatic mode).
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