EP 3376051 B1 20220824 - PUMP UNIT
Title (en)
PUMP UNIT
Title (de)
PUMPENAGGREGAT
Title (fr)
GROUPE MOTOPOMPE
Publication
Application
Priority
EP 17160834 A 20170314
Abstract (en)
[origin: WO2018166975A1] The invention relates to a pump assembly having an electric drive motor (4, 6), at least one impeller which is driven by the drive motor (4, 6), and at least one valve device (18) which lies in a flow path through the pump assembly and can be moved at least between a first and a second switching position, wherein the valve device (18) is coupled to the drive motor via a first coupling in such a way that a movement of the drive motor (4, 6) is transmitted to the valve device (18), and the valve device can be moved from the first into the second switching position by way of a rotational movement of the drive motor (4, 6), and that the first coupling can be released by way of an increase of the rotational speed of the drive motor (4, 6) and/or an increase of the pressure on the output side of the impeller and/or by way of slip, in such a way that the coupling action between the drive motor (4, 6) and the valve device (18) is reduced or cancelled.
IPC 8 full level
F04D 1/00 (2006.01); F04D 13/06 (2006.01); F04D 15/00 (2006.01); F04D 29/42 (2006.01); F04D 29/48 (2006.01); F24D 3/10 (2006.01)
CPC (source: EP US)
F04D 13/06 (2013.01 - EP); F04D 13/0606 (2013.01 - US); F04D 15/0005 (2013.01 - EP); F04D 15/0016 (2013.01 - EP); F04D 29/4293 (2013.01 - EP US); F04D 29/486 (2013.01 - EP); F24D 3/08 (2013.01 - EP); F24D 3/105 (2013.01 - EP); F04D 15/0066 (2013.01 - US); F04D 29/486 (2013.01 - US); F24D 3/105 (2013.01 - US); F24D 2220/0207 (2013.01 - 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 3376051 A1 20180919; EP 3376051 B1 20220824; CN 110431314 A 20191108; CN 110431314 B 20210416; US 2021140435 A1 20210513; WO 2018166975 A1 20180920
DOCDB simple family (application)
EP 17160834 A 20170314; CN 201880018444 A 20180312; EP 2018056086 W 20180312; US 201816492717 A 20180312