GEROTOR HYDRAULIC MOTOR Russian patent published in 2002 - IPC

FIELD: hydraulic drives of rotary motion used to drill inclined holes. SUBSTANCE: hollow rotor and spindle of motor are linked to drive shaft by threaded adapters. Drive shaft is fitted with driving and driven joints. Threaded adapter of rotor is joined to drive shaft and hollow rotor from side of inlet to gerotor mechanism of flow of fluid medium. Driving joint of drive shaft is placed upstream of inlet to gerotor mechanism or downstream of spindle of threaded adapter of rotor. EFFECT: shortened length of motor with preservation or increase of length of drive shaft, prolonged service life of gerotor mechanism thanks to compensation for reactive moment across rotor in center of deviation of spindle section by joint of drive shaft. 5 dwg