IMPELLER FOR AXIAL BLOWER Russian patent published in 2018 - IPC F04D29/36 

FIELD: mechanical devices.

SUBSTANCE: invention relates to impeller (10) for an axial blower including impeller housing (12) which has outer sidewall (14) of the impeller, as well as support disk (16) having hub (18), while a number of radially outwardly directed blades (22) are located on support disk (16), each of which has blade tang (24) and blade working part (26). In accordance with the invention, blade tang (24) has fastening section (90) which has a positive fit between two fastening segments (28, 44), located on support disc (16) oppositely on each of the two sides, and each two opposite fastening segments (28, 44), as well as support disc (16), have at least two through holes (58, 60) for housing one long bushing (46, 50) and one short bushing (48, 52), and fastening section (90), by means of bolts (30, 32, 34, 36) and nuts (40, 42) respectively inserted through bushings (46, 48, 50, 52), can be clamped between two opposite fastening segments (28, 44), with each blade tang (24) being installed in its own recess (102) of support disc (16).

EFFECT: thanks to the structure proposed by the invention, impeller (10) can be manufactured at an optimum cost.

8 cl, 3 dwg