A PUMP FOR USE IN A VACUUM CLEANER

A pump is for generating a suction for application to a vacuum cleaner dirty air inlet. There is a motor inside a motor outer casing and a fan outside the motor outer casing having a main inlet and a main outlet. The fan generates a main suction flow between the main inlet and the main outlet and cr...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	VAN DER KOOI, Johannes Tseard, OTTEN, Wessel Adolf
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COFFEE MILLS DOMESTIC ARTICLES OR APPLIANCES DOMESTIC WASHING OR CLEANING FURNITURE HEATING HUMAN NECESSITIES LIGHTING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS SPICE MILLS SUCTION CLEANERS IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A pump is for generating a suction for application to a vacuum cleaner dirty air inlet. There is a motor inside a motor outer casing and a fan outside the motor outer casing having a main inlet and a main outlet. The fan generates a main suction flow between the main inlet and the main outlet and creates a region of under pressure. This under pressure is used to drive a secondary flow between a cooling air inlet to the motor outer casing and a cooling air outlet from the motor outer casing. The secondary air flow is induced by making use of an under pressure generated by the fan.