CENTRIFUGAL IMPELLER Russian patent published in 2017 - IPC F04D29/22 

FIELD: engines and pumps.

SUBSTANCE: centrifugal impeller comprises the drive disc (2) single with the hub (1), the covering disc (3) having an inlet opening (4) and axisymmetrically disposed blades (5) placed between the discs (2,3). Each blade (5) is made of two parts (6, 7). The outer surface of the disc (2) is made cylindrical in one piece with the outer surface of the second parts (7) of the blades (5). The disc (3) is provided with a cylindrical wall (9), the inner diameter thereof is equal to the disc (2) outer diameter. Axisymmetric closed slots (10), by the number of the blades (5), are made in the wall (9) . The first parts (6) of the blades (5) are formed by bridges (11) in the wall (9) between the slots (10). The wall (9) between its butt (12) and the slots (10) is connected to the disc (2) by pins (13).

EFFECT: increasing impeller safety and providing the monitoring reliability in its production.

3 dwg