Global Patent Index - EP 3172446 B1

EP 3172446 B1 20191106 - COOLANT PUMP WITH INTEGRATED CONTROL

Title (en)

COOLANT PUMP WITH INTEGRATED CONTROL

Title (de)

KÜHLMITTELPUMPE MIT INTEGRIERTER REGELUNG

Title (fr)

POMPE DE REFROIDISSEMENT AVEC CONTROLE INTEGRE'

Publication

EP 3172446 B1 20191106 (DE)

Application

EP 15739275 A 20150717

Priority

  • DE 102014110231 A 20140721
  • EP 2015066472 W 20150717

Abstract (en)

[origin: WO2016012378A1] 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 particularly 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.

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 5/12 (2013.01 - CN EP KR US); F01P 7/14 (2013.01 - CN US); F01P 7/16 (2013.01 - EP US); F01P 7/164 (2013.01 - KR); F04B 1/146 (2013.01 - US); F04B 23/10 (2013.01 - CN); F04B 23/106 (2013.01 - EP US); F04B 23/14 (2013.01 - EP US); F04D 13/12 (2013.01 - KR US); F04D 15/0038 (2013.01 - CN EP KR US); F01P 7/164 (2013.01 - EP US); F01P 2005/105 (2013.01 - US); F01P 2007/146 (2013.01 - US); F01P 2025/00 (2013.01 - EP KR US); F01P 2025/06 (2013.01 - CN); F04B 1/128 (2013.01 - US); F04D 13/021 (2013.01 - US); F05D 2270/64 (2013.01 - CN EP KR US)

Citation (examination)

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 102014110231 B3 20150910; CN 106536888 A 20170322; CN 106536888 B 20191018; EP 3172446 A1 20170531; EP 3172446 B1 20191106; KR 101912801 B1 20181029; KR 20170018025 A 20170215; US 2017370274 A1 20171228; WO 2016012378 A1 20160128

DOCDB simple family (application)

DE 102014110231 A 20140721; CN 201580039968 A 20150717; EP 15739275 A 20150717; EP 2015066472 W 20150717; KR 20177000787 A 20150717; US 201515502374 A 20150717