FILTER CLEANING FOR DIRT SUCTION DEVICES COMPRISING AN EXTERNAL FAN

A dirt suction device comprises at least two filters (3, 4) which are arranged on/in a dirt suction device housing (1), are affected by an air stream from a fan (21), and include valves (26-34) for separately controlling the cleaning action of the filter, wherein during normal operation, the dirt-la...

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Bibliographische Detailangaben
Hauptverfasser:	DE FALCO, MAURO, BONDIOLI, CESARE, AMISANI, GIANNI
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	COFFEE MILLS DOMESTIC ARTICLES OR APPLIANCES DOMESTIC WASHING OR CLEANING FURNITURE HUMAN NECESSITIES PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION SPICE MILLS SUCTION CLEANERS IN GENERAL TRANSPORTING
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Beschreibung
Zusammenfassung:	A dirt suction device comprises at least two filters (3, 4) which are arranged on/in a dirt suction device housing (1), are affected by an air stream from a fan (21), and include valves (26-34) for separately controlling the cleaning action of the filter, wherein during normal operation, the dirt-laden air stream passes through at least one filter from the untreated air side to the clean air side, and at least one of the valves is associated with each of the at least two filters, said valve switching over in the cleaning position such that the air stream in the filter is reversed and the dirt particles adhering to the untreated air side are removed, wherein the fan of the dirt suction device is arranged outside the dirt suction device housing.