DEVICE AND METHOD OF INJECTING FLUID PRESSURE Russian patent published in 2019 - IPC F04D29/28 

FIELD: physics.

SUBSTANCE: invention relates to power engineering, namely to devices and methods for pressure injection of fluids, and can be used for pumping liquids, gases. Device includes at least one rotatable impeller (1), comprising rear (3), front (4) and main (5) discs installed coaxially with the gap and rigidly connected, for example, by pins (6). Tightness is ensured by shell ring (7). In front disc (4) on the side of the end surface there is an axial inlet hole (8) with branch pipe (9) for supply of the current medium into the gap between front disc (4) and main disc (5). Radial blades (10) are made on adjacent end surfaces of disks (4) and (5). On the periphery of main disc (5) there are holes (11). Rear output disc (3) has outlet branch pipe (12). Inlet (9) and outlet (12) branch pipes form an axis of rotation and rotate in support bearings (13). End connections (14) are used for connection to supply and discharge pipelines.

EFFECT: invention is aimed at elimination of hydraulic losses.

6 cl, 1 dwg