Deep drilling device, deep drilling pump device and use of a hydrodynamic retarder to compensate for restoring moments triggered by the output in the drive system

摘要

A deep drilling or deep well pump system includes a driving motor, a driven component connected to the driving motor, and a hydrodynamic retarder. The hydrodynamic retarder includes a rotor and stator blade wheel. The rotor blade wheel and the stator blade wheel together form a toroidal working space continuously filled with a working medium during operation of the deep drilling device or the deep well pump device. The rotor blade wheel is continuously connected at least indirectly to the driving motor. The blading of the rotor and stator blade wheel is designed so that, owing to the blade direction in the drive mode, the rotor blade wheel revolves freely. During the occurrence of restoring forces on the driven components, the retarder operates in a braking manner.