Global Patent Index - EP 3382083 A1

EP 3382083 A1 20181003 - METHOD FOR DETERMINING FOAM IN A WASHING MACHINE

Title (en)

METHOD FOR DETERMINING FOAM IN A WASHING MACHINE

Title (de)

VERFAHREN ZUR BESTIMMUNG VON SCHAUM IN EINER WASCHMASCHINE

Title (fr)

PROCÉDÉ DE DÉTERMINATION DE MOUSSE DANS UNE MACHINE À LAVER

Publication

EP 3382083 A1 20181003 (EN)

Application

EP 17162965 A 20170327

Priority

EP 17162965 A 20170327

Abstract (en)

The present invention refers to a method for determining foam during spin cycle of operation in a drum-type washing machine (99). In the technique, a foam level is detected (110) by a foam sensor (10), based on sensing of pressure of a detergent solution tub (4). Simultaneously, a rotational speed of the drive motor (5) is detected (120). The foam level and the rotational speed of the drive motor (5) are detected (110,120) for a given time instance. Thereafter, a threshold value corresponding to the rotational speed of the drive motor (5) is determined (130). Finally, the foam level detected (110) by the foam sensor (10) is compared (140) to the threshold value. The foam is determined to be present in the washing machine (99) if the foam level detected by the foam sensor (10) is equal to or greater than the threshold value.

IPC 8 full level

D06F 33/36 (2020.01); D06F 35/00 (2006.01); D06F 39/06 (2006.01)

CPC (source: EP US)

D06F 33/36 (2020.02 - EP US); D06F 39/06 (2013.01 - EP US); D06F 2103/00 (2020.02 - EP US); D06F 2103/30 (2020.02 - EP US); D06F 2105/46 (2020.02 - EP US)

Citation (applicant)

WO 2009016009 A1 20090205 - BSH BOSCH SIEMENS HAUSGERAETE [DE], et al

Citation (search report)

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

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3382083 A1 20181003; TR 201704786 A2 20181022

DOCDB simple family (application)

EP 17162965 A 20170327; TR 201704786 A 20170330