ROTARY HYDRAULIC MACHINE Russian patent published in 2019 - IPC F04C2/14 F01C1/14 

FIELD: machine building.

SUBSTANCE: invention relates to positive displacement hydraulic machines. Rotary hydraulic machine of planetary type consists of series-connected sections, each of which comprises central wheel 1 with external teeth, centroid of which has M waves, fixed central wheel 2 with internal teeth, number N of waves centroids of which is greater than or equal to M (N≥M), as well as floating satellites 3, fixed end walls 4, 5, 6 interacting with wheels 1, 2 and system of working medium supply and discharge channels. Retraction channels of the previous section are connected to feed channels of the next section. Wheels 1 of all sections are secured on common shaft 10. Centroids of wheels 1 and 2 contain respectively M and N sections, which are circumferences of maximum radius (R_max), having common centre lying on central axis, as many sections, which are concentric circles of minimum radius (R_min), and located between these circles sections centroid, providing a smooth transition from R_max to R_min. Angular length of each section of centroids with maximum radius R_max equal to angular length of section centroids with minimum radius R_min.

EFFECT: invention is aimed at providing theoretically constant instantaneous consumption of working medium.

1 cl, 7 dwg