Electrically powered aspirator unit with impeller for cooling the motor

(19)

(11)

EP 1 025 792 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	29.05.2002 Bulletin 2002/22

(43)	Date of publication A2:
	09.08.2000 Bulletin 2000/32

(21)	Application number: 00200345.7

(22)	Date of filing: 02.02.2000

(51)	International Patent Classification (IPC)⁷: A47L 9/22, A47L 5/22

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
	Designated Extension States:
	AL LT LV MK RO SI

(30)

Priority:

08.02.1999 IT MI990237

(71)	Applicant: AMETEK ITALIA S.r.l.
	20087 Robecco sul Naviglio (Milano) (IT)

(72)	Inventors:
	Giussani, Mario 23895 Nibionno (IT) Rapi, Giampaolo 26013 Crema (IT)

(74)	Representative: Faraggiana, Vittorio, Dr. Ing.
	Ingg. Guzzi & Ravizza S.r.l. Via Vincenzo Monti 8 20123 Milano 20123 Milano (IT)

(54)	Electrically powered aspirator unit with impeller for cooling the motor

(57) A powered aspirator unit comprises an external shell (11) containing an electric motor (12, 13) on the shaft of which is keyed the suction fan (17). Between the motor and the fan there is a partition providing on a bottom face a fan containment cavity and on the other face is made the stator part (23) of a motor cooling impeller (24). In the partition (21) is made a seat (31) for a bearing (30) supporting the motor shaft (14).

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