REGULATOR OF DOWNHOLE HYDRAULIC ENGINE SKEWNESS Russian patent published in 2012 - IPC E21B4/02 E21B7/08 

FIELD: machine building.

SUBSTANCE: proposed regulator comprises hollow curved shaft with outer splines and threads on its extensions, threaded coupling with inner lengthwise splines and teethe on end face fitted on outer lengthwise splines of hollow curved shaft, misaligned straight and curved adapters. Teeth are made on face of curved adapter to engage with those of toothed coupled face while said straight and curved adapters are engaged with hollow curved shaft by opposed threads. Proposed regulator is fitted between turbine section comprising turbine rotor shafts with vane stages arranged inside said section to run in radial bearings, and spindle section comprising encased shaft running in axial and radial bearings coupled by splined coupling, and driven shaft made up of drive and driven joint assemblies. Note here that turbine rotor shaft is engaged with drive hinged assembly by splined coupling while drive hinged assembly is engaged with spindle shaft. Note here that straight adapter accommodates its own radial coupling support. splined coupling is mounted to rotate and translate in its radial coupling support, while lengthwise axes of straight adapter, radial coupling support, splined coupling and turbine rotor shaft are aligned.

EFFECT: larger meat time between repairs and higher reliability.

6 cl, 6 dwg