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Machine translation
1. (WO2003072947) CENTRIFUGAL PUMP
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2003/072947    International Application No.:    PCT/EP2003/000474
Publication Date: 04.09.2003 International Filing Date: 20.01.2003
Chapter 2 Demand Filed:    22.08.2003    
IPC:
F04D 29/22 (2006.01)
Applicants: ELECTROLUX HOME PRODUCTS CORPORATION N.V. [BE/BE]; Belgicastraat 17, B-1930 Zaventem (BE) (For All Designated States Except US).
FAVRET, Ugo [IT/IT]; (IT) (For US Only).
CIMETTA, Silvano [IT/IT]; (IT) (For US Only)
Inventors: FAVRET, Ugo; (IT).
CIMETTA, Silvano; (IT)
Agent: GIUGNI, Valter; Propria S.r.l., Via Mazzini, 13, I-33170 Pordenone (IT)
Priority Data:
PN2002U000012 26.02.2002 IT
Title (EN) CENTRIFUGAL PUMP
(FR) POMPE CENTRIFUGE
Abstract: front page image
(EN)Centrifugal pump, in particular drain pump for washing machines, comprising a casing (10) that defines a chamber 11 within which an impeller formed by a hub (14) and a disk (15) provided with blades (16) is capable of rotating. The impeller is provided with at least a slit (20) adapted to generate a negative pressure on the rear surface of the disk (15) during the rotation of said impeller. The solution is very simple and rational; it enables a clogging of the impeller, as it may be caused by the presence of foreign matters and bodies in the washing liquor, to be avoided. It also enables axial thrusts, as they occur during the rotation of the impeller, to be compensated for.
(FR)L'invention concerne une pompe centrifuge, notamment une pompe d'évacuation de machines à laver, comportant un boîtier (10) définissant une chambre (11) dans laquelle peut tourner une turbine composée d'un moyeu (14) et d'un disque (15) pourvu d'ailettes (16). Ladite turbine présente au moins une encoche (20) pouvant créer une dépression sur la face arrière du disque (15) lorsque la turbine tourne. Ainsi, il est possible d'éviter de façon simple et rationnelle tout encrassement de la turbine pouvant être provoqué par la présence de matières et corps étrangers dans la lessive de lavage, et de compenser par ailleurs des poussées axiales survenant lors de la rotation de la turbine.
Designated States: US.
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IT, LU, MC, NL, PT, SE, SI, SK, TR).
Publication Language: English (EN)
Filing Language: English (EN)