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1. WO2009003258 - METHOD FOR THE INTERNAL CLEANING OF A CLOTHES WASHING MACHINE

Publication Number WO/2009/003258
Publication Date 08.01.2009
International Application No. PCT/BR2008/000181
International Filing Date 30.06.2008
IPC
D06F 37/00 2006.01
DTEXTILES; PAPER
06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
37Details specific to washing machines covered by groups D06F21/-D06F25/107
D06F 39/00 2006.01
DTEXTILES; PAPER
06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
39Details of washing machines not specific to a single type of machines covered by groups D06F9/-D06F27/140
CPC
B08B 9/08
BPERFORMING OPERATIONS; TRANSPORTING
08CLEANING
BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
9Cleaning hollow articles by methods or apparatus specially adapted thereto
08Cleaning containers, e.g. tanks
D06F 35/006
DTEXTILES; PAPER
06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
35Washing machines, apparatus, or methods not otherwise provided for
005Methods for washing, rinsing or spin-drying
006for washing or rinsing only
D06F 39/08
DTEXTILES; PAPER
06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
39Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
08Liquid supply or discharge arrangements
Applicants
  • WHIRLPOOL S.A. [BR]/[BR] (AllExceptUS)
  • PRIOLI, Ricardo [BR]/[BR] (UsOnly)
Inventors
  • PRIOLI, Ricardo
Agents
  • FERREIRA, Alexandre
Priority Data
PI0702144-529.06.2007BR
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD FOR THE INTERNAL CLEANING OF A CLOTHES WASHING MACHINE
(FR) PROCÉDÉ DE NETTOYAGE INTÉRIEUR D'UN LAVE-LINGE
Abstract
(EN)
A clothes washing machine includes a tank (40) with a basket (50) to be selectively rotated by a motor unιt(60), a water feed device (80), an outflow electric pump (90) suctioning the bottom of the tank (40) and discharging into a nsing drain pipe (95), and a control unιt(3O) for the washing operation to be performed by the machine that encompasses a cleaning stage after the end of a clothes washing stage encompassing an additional inflow of water into tank (40), via water feed device (80), and out-flowing this water by outflow electπc pump (90), with the additional inflow and outflow of water for the cleaning stage being retained dunng a period sufficient for all the washing liquid trapped in the drain pipe to be pumped out of it (95) at the end of the washing stage.
(FR)
Le procédé de l'invention concerne un lave-linge constitué des éléments suivants: réservoir (40) avec tambour (50) entraîné sélectivement en rotation par une unité de moteur (60); dispositif d'alimentation en eau (80); pompe électrique d'évacuation (90) aspirant le fond du réservoir (40) et évacuant l'eau dans un tuyau de vidange orienté vers le haut (95); et unité de commande (30) gérant les opérations de lavage effectuées par la machine et comprenant une phase de nettoyage suivant la vidange du liquide de lavage après la fin du cycle de lavage par la phase d'essorage, par exemple. Cette étape de nettoyage englobe une admission supplémentaire d'eau dans le réservoir (40) suite à l'enclenchement du dispositif d'alimentation en eau (80) et l'évacuation de cette eau par enclenchement de la pompe électrique d'évacuation (90), l'admission et l'évacuation d'eau supplémentaires pour l'étape de nettoyage durant suffisamment longtemps pour que la totalité du liquide de lavage emprisonné dans le tuyau de vidange soit aspirée hors dudit tuyau (95) à la fin du cycle de lavage.
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