ROTOR-VORTEX HYDRAULIC MOTOR Russian patent published in 2010 - IPC F01D1/10 

FIELD: machine building.

SUBSTANCE: motor consists of rotor-vortex turbines installed in case 1, of stators 2 in turbine case1 with blades 3 and of rotors 5 mounted on hollow shaft 4. Each turbine has two blocks 6, 7 parallel coupled with a cavity of shaft 4. Blocks 6, 7 contain equal number of pairs stator 2-rotor 5 arranged in groups including at least three pairs divided in axial direction with stops 8. Between the groups there are positioned centralisers 9 of shaft 4 in case 1 consisting of supports 10 and bearing sleeves 11. Rotors 5, stops 8 and sleeves 11 are fixed on shaft 4 with nut 12. Blind channel 13 and orifices 19 for supply of fluid into groups are made in shaft 4. Groups of rotors 5 are centred relative to groups of stators 2 by means of radial supports consisting of bushings 14, 15. Stop sleeve 17 installed in case 1 and forming cavity 16 envelops each group of stators 2. Cavities 16 are intercommunicated. Groups of stators are fixed relative to sleeve 17 by means of lugs 18. Packing unit 21 is made as labyrinth. Case 1 is equipped with subs 22, 23, while shaft 4 is equipped with half-coupling 24.

EFFECT: increased reliability of motor operation.