| 摘要 |
The present invention relates to a hydrodynamic brake. The hydrodynamic brake comprises a stator (1) and a rotor (2). A first medium is intended to be supplied to a toroidal space (7) of the hydrodynamic brake in order to effect a braking action. A second medium is intended to be supplied to the toroidal space (7), when the brake is not activated, in order to reduce an undesired braking action which is due to circulation of air present in the toroidal space of the rotor (2). The second medium is led out from the toroidal space via a peripheral slitlike passage (12) situated between the stator (1) and the rotor (2). The hydrodynamic brake incorporates a peripheral groove (13) with a countersunk surface situated radially externally about said slitlike passage (12). The surface of the groove (13) incorporates at least one outlet (14) for the second medium. <IMAGE> |
