EP 3066343 A1 20160914 - MAGNETIC PUMP FOR AN UXILIARY ASSEMBLY OF A VEHICLE AND METHOD OF CONTROLLING A MAGNETIC PUMP FOR AN AUXILIARY ASSEMBLY
Title (en)
MAGNETIC PUMP FOR AN UXILIARY ASSEMBLY OF A VEHICLE AND METHOD OF CONTROLLING A MAGNETIC PUMP FOR AN AUXILIARY ASSEMBLY
Title (de)
MAGNETPUMPE FÜR EIN HILFSAGGREGAT EINES FAHRZEUGS SOWIE VERFAHREN ZUR STEUERUNG EINER MAGNETPUMPE FÜR EIN HILFSAGGREGAT
Title (fr)
POMPE MAGNÉTIQUE POUR AGRÉGAT AUXILIAIRE DE VÉHICULE AUTOMOBILE ET PROCÉDÉ DE CONTRÔLE DE POMPE MAGNÉTIQUE POUR AGRÉGAT AUXILIAIRE
Publication
Application
Priority
- DE 102013112306 A 20131108
- EP 2014067247 W 20140812
Abstract (en)
[origin: WO2015067384A1] Magnet pumps are known for auxiliary assemblies in vehicles, comprising an inlet (26) and an outlet (30), an electromagnet (10), an axial piston (38, 64) which can be moved up and down in a cylinder (82), a first non-return valve (86) which is pre-tensioned against the axial piston (38, 64), and a second non-return valve (96) which is pre-tensioned against an outlet opening (92) of the cylinder (82). It is also known that an axial piston (38, 64) coupled to an armature (22) of an electromagnet (10) is moved up and down by alternately supplying a current to a coil (14) of the electromagnet (10) in a cylinder (82) for pumping a fluid from the inlet (26) to the outlet (30). Until now, additional valves had to be used in order to depressurize an area filled via the pump. According to the invention, this is prevented in that the axial piston (38, 64) is designed in two parts and has an axial through-bore (40, 83), the first axial piston part (38) being connected to the armature (22) and being liftable by the second axial piston part (64). When no current is supplied to the coil in the lifted state, the fluidic connection is established between the inlet (26) and the outlet (30) via a gap (67) between the two axial piston parts (38, 64).
IPC 8 full level
F04B 17/04 (2006.01)
CPC (source: EP US)
F04B 17/04 (2013.01 - EP US); F04B 17/044 (2013.01 - US); F04B 53/12 (2013.01 - US); F04B 53/14 (2013.01 - US)
Citation (search report)
See references of WO 2015067384A1
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 102013112306 A1 20150513; EP 3066343 A1 20160914; EP 3066343 B1 20171129; US 10151307 B2 20181211; US 2016281695 A1 20160929; WO 2015067384 A1 20150514
DOCDB simple family (application)
DE 102013112306 A 20131108; EP 14755616 A 20140812; EP 2014067247 W 20140812; US 201415034181 A 20140812