EP 4051887 A1 20220907 - ELECTRIC COOLANT PUMP WITH HEATING ELEMENT
Title (en)
ELECTRIC COOLANT PUMP WITH HEATING ELEMENT
Title (de)
ELEKTRISCHE KÜHLMITTELPUMPE MIT HEIZELEMENT
Title (fr)
POMPE À LIQUIDE DE REFROIDISSEMENT ÉLECTRIQUE DOTÉE D'UN ÉLÉMENT CHAUFFANT
Publication
Application
Priority
- DE 102019129068 A 20191028
- EP 2020076574 W 20200923
Abstract (en)
[origin: WO2021083585A1] The invention relates to an electric coolant pump (1) for a coolant circuit of a motor vehicle having a pump chamber (6), the electric coolant pump (1) having a suction line (9) which leads into a suction side (10) of the pump chamber (6), an evacuation channel (11) which leads out of a discharge side (12) of the pump chamber (6), and an electric motor (4) having a control device (18), the electric coolant pump (1) further having a heating device (13) which comprises an electric heating element (14) that projects into the suction line (9) or the evacuation channel (11) and can be flushed by the coolant, the electric heating element (14) having at least two operating states, wherein the electric heating element (14) can be operated from an electrical grid (15) in a first operating state and from a vehicle electrical system (19) of the motor vehicle in a second operating state, and the control device (18) of the electric motor (4) being designed such that the electric motor (4) has at least two operating states, wherein the electric motor (4) can be operated from an electrical grid (15) in a first operating state and can be operated from the vehicle electrical system (19) in a second operating state.
IPC 8 full level
F01P 5/10 (2006.01); F02N 19/10 (2010.01)
CPC (source: EP US)
F01P 5/10 (2013.01 - EP); F01P 5/12 (2013.01 - US); F01P 2005/125 (2013.01 - EP); F01P 2050/24 (2013.01 - EP US); F01P 2060/18 (2013.01 - EP US); F01P 2070/04 (2013.01 - EP US)
Citation (search report)
See references of WO 2021083585A1
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)
DE 102019129068 A1 20210429; CN 114787489 A 20220722; EP 4051887 A1 20220907; US 2022356835 A1 20221110; WO 2021083585 A1 20210506
DOCDB simple family (application)
DE 102019129068 A 20191028; CN 202080085038 A 20200923; EP 2020076574 W 20200923; EP 20792297 A 20200923; US 202017772494 A 20200923