RADIAL DISPLACEMENT MODULUS Russian patent published in 2021 - IPC F04D29/44 F04D13/10 

FIELD: hydraulic engineering.

SUBSTANCE: invention relates to the field of hydraulic engineering and can be used in pumping units. The radial displacement module contains a cylindrical housing and a shaft placed inside it with end fitting elements for connection with axially offset connecting shafts. The shaft is bent relative to the axial direction. At the ends of the shaft, radial bearings are placed on each side. Radial bearings are placed from the end of the shaft at a distance of no more than 20% of the total length of the shaft.

EFFECT: invention is aimed at improving the reliability and durability of the module by strengthening the connection of the shafts, reducing bending loads during the passage of curved sections of the well, as well as simplifying the manufacturing technology of the module.

7 cl, 5 dwg