ROTARY HYDRAULIC MACHINE Russian patent published in 2012 - IPC F04C2/08 F04C2/14 

FIELD: machine building.

SUBSTANCE: proposed rotary machine comprises stator 1 with internal teeth 3, rotor 4 made up of sleeve with external and internal teeth 5 and 6 making sun-and-plant motion relative to stator 1, two planet pinions 7 and 8 interacting with external teeth 4 of rotor and stator, drive shaft 11 with its axis shifted relative to that of stator 1, fixed gear 12 with external teeth aligned with drive shaft 11 and rigidly engaged with stator 1. Hydraulic machine comprises also two floating idlers interacting with gear 12 and rotor internal teeth 6 as well as gear rigidly fitted on drive shaft 11 to interact with rotor internal teeth 6. Fixed gear 12 consists of two separate toothed rims fitted on face covers of stator 1. Drive shaft extends inside hollow fixed gear 12. Drive gear is made integral with shaft 11 features tip diameter smaller than that of space of fixed gear 12.

EFFECT: higher efficiency and useful volume.

3 cl, 4 dwg