AXIAL-FLOW FAN Russian patent published in 2004 - IPC

FIELD: aircraft industry and rocketry.

SUBSTANCE: invention can be used in temperature control systems of aircraft and rocket articles to provide higher adaptability to disassembling and protection of fan motor from unauthorized access. According to invention, fan fastening is made in form of groove on outer cylindrical surface of electric motor from side close to shaft, and split ring is placed in groove. Pressure ring is installed on section of cylindrical surface of motor between groove and end of motor from side of shaft. Pressure ring is provided with stop in contact with said end face. Screws are fitted in axial holes of pressure and split rings, their heads pointed to impeller. Through axial holes are made in bushing. Casing is provided with flange projecting inwards which has threaded holes and it is connected to bushing by screws fitted in threaded holes of flange and through axial holes of bushing, heads of screws being pointed to impeller and are flush with bushing surface to provide contact of split ring with bushing end face.

EFFECT: improved adaptability of manufacture.

1 dwg