EP 3172445 A1 20170531 - COOLANT PUMP WITH INTEGRATED CLOSED-LOOP CONTROL
Title (en)
COOLANT PUMP WITH INTEGRATED CLOSED-LOOP CONTROL
Title (de)
KÜHLMITTELPUMPE MIT INTEGRIERTER REGELUNG
Title (fr)
POMPE À RÉFRIGÉRANT MUNIE D'UNE RÉGULATION INTÉGRÉE
Publication
Application
Priority
- DE 102014110231 A 20140721
- DE 102015109966 A 20150622
- EP 2015066473 W 20150717
Abstract (en)
[origin: WO2016012379A1] The invention relates to a coolant pump for pumping a coolant for an internal combustion engine in a vehicle which comprises the internal combustion engine and a central engine control. The coolant pump comprises a pump shaft (4) which is rotatably mounted in a pump housing (1) and is driven by the internal combustion engine via a belt drive (3). An impeller (5) is arranged on the pump shaft (4) and is accommodated in a pump chamber (2) of the pump housing (1), pumping a coolant. A axial piston pump (9), which is operated via a wobble plate (8) on a rear face of the impeller (5), conducts part of the pumped coolant away to a hydraulic circuit (11) which extends from the axial piston pump (9) via a proportional valve (13) back to the pumped coolant and has a branch-off (11b) between the axial piston pump (9) and the proportional valve (13) as the hydraulic actuator. A regulating slide valve (7), which adjusts a volume flow of the coolant pumped by the coolant pump, can be moved depending on a pressure in the hydraulic circuit (11). A sensor (19), which detects a parameter characteristic of the volume flow of the pumped coolant, outputs an actual value signal of the parameter. The coolant pump comprises a dedicated pump control (21) which controls the proportional valve (13) in the hydraulic circuit (11) on the basis of the actual value signal of the sensor (19) and a desired value signal of the central engine control. The pump control (21) and the proportional valve (13) are particularly designed as a common electromechanical component (20).
IPC 8 full level
F04D 13/12 (2006.01); F04D 15/00 (2006.01)
CPC (source: CN EP KR US)
F01P 3/20 (2013.01 - US); F01P 5/10 (2013.01 - US); F01P 5/12 (2013.01 - KR); F01P 7/14 (2013.01 - US); F01P 7/164 (2013.01 - KR); F04B 19/22 (2013.01 - US); F04D 1/00 (2013.01 - US); F04D 13/12 (2013.01 - CN KR US); F04D 15/0038 (2013.01 - CN EP KR US); F01P 2005/105 (2013.01 - US); F01P 2007/146 (2013.01 - US); F01P 2025/00 (2013.01 - KR); F05D 2270/64 (2013.01 - CN EP KR US)
Citation (search report)
See references of WO 2016012379A1
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)
WO 2016012379 A1 20160128; CN 106536939 A 20170322; CN 106536939 B 20190906; EP 3172445 A1 20170531; EP 3172445 B1 20190911; HU E047472 T2 20200428; KR 101912802 B1 20181228; KR 20170018026 A 20170215; PL 3172445 T3 20200430; US 10400659 B2 20190903; US 2017254253 A1 20170907; US 2018119596 A9 20180503
DOCDB simple family (application)
EP 2015066473 W 20150717; CN 201580039869 A 20150717; EP 15738683 A 20150717; HU E15738683 A 20150717; KR 20177000789 A 20150717; PL 15738683 T 20150717; US 201515502362 A 20150717