Dust-extracting motorised fan unit

摘要

Fan devices with built-in dust extractor. The device is produced in the form of a module comprising: - a motor 13 for rotationally driving a first air circulation means 35 and a second air circulation means 46 arranged on either side of the motor 13 on its output shaft 17, - at least one dust-extractor means 38 placed on the air inlet 8 and communicating with the second air-circulation means connected to the discharge orifice, - at least one main duct 29 directing the air from the outlet of the dust-extractor means 38 to the first air-circulation means connected to the exhaust outlet 10. Application to the filtering and/or ventilation of air in a collective protection installation of a vehicle. <IMAGE>