DRIVE UNIT FOR CONVEYORS, IN PARTICULAR FOR A CAPSTAN SYSTEM
The invention relates to a drive unit for conveyors, in particular for a capstan system having a driving motor, a hydrodynamic clutch (2) composed of a pump wheel and a turbine wheel which together form a work room which can be filled with operating material; the hydrodynamic clutch (2) can be at least indirectly coupled to a primary shaft of the conveyors. The invention has the following characteristics: the operating material supply system comprises a closed circuit (1) containing a bypass circuit (11), inside which is a receptacle (13) containing the operating material, said receptacle being installed above the clutch (2).