AXIAL-BLOW BLOWER Russian patent published in 2014 - IPC F04D19/00 

FIELD: machine building.

SUBSTANCE: proposed blower comprises housing, directing vanes composed of vaned sleeve, cartridge accommodating motor and impeller fitted inside said cartridge, and cover with for radial spokes with their ends resting on housing cylindrical surface. Said cover is composed by flat disc aligned with blower axis with two rectangular-section crossed strips screwed to disc end facing the cartridge. Strips grooves are opposed while end surfaces abut on flat disc end face. Strip opposite end surfaces abutting on the disc have cylindrical groove to make sections of outer cylindrical surface on strip end surfaces facing the cartridge. Disc is attached to the flange by fasteners fitted in its axial bores arranged between the strips.

EFFECT: better manufacturability.

3 dwg