EP 3538701 B1 20201209 - PROCESS FOR THE OPERATION OF A WASHING MACHINE WITH FOAM DETECTION AND WASHING MACHINE SUITABLE FOR THIS PROCESS
Title (en)
PROCESS FOR THE OPERATION OF A WASHING MACHINE WITH FOAM DETECTION AND WASHING MACHINE SUITABLE FOR THIS PROCESS
Title (de)
VERFAHREN ZUM BETRIEB EINER WASCHMASCHINE MIT SCHAUMDETEKTION UND FÜR DIESES VERFAHREN GEEIGNETE WASCHMASCHINE
Title (fr)
PROCÉDÉ DE FONCTIONNEMENT D'UNE MACHINE À LAVER AVEC DÉTECTION DE MOUSSE ET LAVE-LINGE APPROPRIÉ POUR CE PROCÉDÉ
Publication
Application
Priority
- EP 16197661 A 20161108
- EP 2017077063 W 20171024
Abstract (en)
[origin: EP3318670A1] The invention is directed to a process for the operation of a washing machine (1) with a tub (2) containing a drum (3) for receiving laundry (4) and a pressure sensor (6) in contact with an aqueous liquid, a drive motor (5) for the drum (3), a pump (18), and a control unit (8), wherein the presence of foam can be detected by a pressure change, characterized in that the following steps are carried out: (a) a washing phase is conducted with a suds containing water and detergent; (b) water is added during or after the washing phase (a) into the tub (2) in an amount Q ‰¤ Q set , wherein Q set is a prescribed maximum quantity of water to be added in this step; (c) a change of the pressure P is measured by the pressure sensor (6) upon the addition of the water in step (b); and (d) the pressure change ”P measured in step (c) is evaluated with respect to the presence of foam. The invention is moreover directed to a washing machine (1) in which this process can be conducted.
IPC 8 full level
D06F 33/36 (2020.01); D06F 33/56 (2020.01); D06F 33/34 (2020.01); D06F 33/54 (2020.01); D06F 34/22 (2020.01); D06F 39/06 (2006.01)
CPC (source: EP US)
D06F 33/36 (2020.02 - EP US); D06F 33/56 (2020.02 - EP US); D06F 33/34 (2020.02 - EP US); D06F 33/54 (2020.02 - EP US); D06F 34/22 (2020.02 - EP US); D06F 39/06 (2013.01 - EP US); D06F 2103/20 (2020.02 - EP US); D06F 2105/02 (2020.02 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3318670 A1 20180509; EP 3538701 A1 20190918; EP 3538701 B1 20201209; WO 2018086859 A1 20180517
DOCDB simple family (application)
EP 16197661 A 20161108; EP 17794926 A 20171024; EP 2017077063 W 20171024