EP 3411520 B1 20210317 - LAUNDRY TREATMENT APPLIANCE COMPRISING A PUMP DRIVE SYSTEM
Title (en)
LAUNDRY TREATMENT APPLIANCE COMPRISING A PUMP DRIVE SYSTEM
Title (de)
WÄSCHEPFLEGEGERÄT MIT EINER PUMPENANSTEUERUNG
Title (fr)
APPAREIL D'ENTRETIEN DU LINGE MUNI D'UNE COMMANDE DE POMPE
Publication
Application
Priority
- DE 102016201446 A 20160201
- EP 2016082802 W 20161229
Abstract (en)
[origin: WO2017133825A1] The present invention relates to a laundry treatment appliance (100) comprising a pump (115) for pumping washing liquid, wherein the pump (115) has a suction chamber (117) with a suction nozzle (113) for fluidic connection to a suction line (111), a first pressure chamber (119) with a first pressure nozzle (121) for fluidic connection to a first pressure line (123), and a second pressure chamber (125) with a second pressure nozzle (127) for fluidic connection to a second pressure line (129), and wherein the pump (115) has a first pump motor (131) for pumping the washing liquid out of the first pressure chamber (119) through the first pressure line (123) with a first delivery flow (137) and a second pump motor (133) for pumping washing liquid out of the second pressure chamber (125) through the second pressure line (129) with a second delivery flow (143), and a pump drive system (135) for controlling the first and second pump motor (131, 133). The pump drive system (135) is designed to activate one of the two pump motors (131, 133) in an activation time period in order to pump washing liquid out of the associated pressure chamber (119, 125) through the associated pressure line (123, 129) with the associated delivery flow (137, 143). The pump drive system (135) is designed to activate the other of the two pump motors (131, 133) in the activation time period in order to pump washing liquid out of the associated pressure chamber (119, 125) through the associated pressure line (123, 129) up to a maximum washing liquid level (139) in the associated pressure line (123, 129) in order to prevent air being drawn in through the associated pressure line (123, 129).
IPC 8 full level
D06F 39/08 (2006.01); D06F 33/47 (2020.01)
CPC (source: EP US)
D06F 39/085 (2013.01 - EP US); F04D 9/001 (2013.01 - EP); F04D 15/0066 (2013.01 - EP); F04D 15/0072 (2013.01 - EP US); D06F 33/47 (2020.02 - EP US); D06F 2103/48 (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)
DE 102016201446 B3 20170209; CN 108603323 A 20180928; CN 108603323 B 20200804; EP 3411520 A1 20181212; EP 3411520 B1 20210317; PL 3411520 T3 20211011; WO 2017133825 A1 20170810
DOCDB simple family (application)
DE 102016201446 A 20160201; CN 201680080694 A 20161229; EP 16822696 A 20161229; EP 2016082802 W 20161229; PL 16822696 T 20161229