TURBOCOUPLING Russian patent published in 1997 - IPC

FIELD: mining industry; hydraulic downface motors. SUBSTANCE: turbocoupling has pump vanes fixed stationary relative to drive shaft, turbine vanes fixed stationary relative to driven shaft, and airtight housing. Pump and turbine vanes are located in housing space filled with liquid. For the purpose of locating turbocoupling in downface motor body, when turbocoupling design uses vanes of turbodrill stator and rotor, pump vanes are secured on drive shaft and turbine vanes are secured on inner surface of housing made in the form of cylindrical pipe union which is fastened alternately in clearances between turbine vanes. Turbocoupling is installed inside turbodrill housing on radial bearings with forming a circular clearance between turbodrill body and turbocoupling housing for flowing of washing liquid. Vanes of pump and turbine are made to have similar or opposite directions. EFFECT: high efficiency. 1 dwg