EP 2798225 A2 20141105 - METHOD FOR DETERMINING A POSITION OF A PISTON IN A PISTON PRESSURE ACCUMULATOR BY RESISTANCE MEASUREMENT AND SUITABLY DESIGNED PISTON PRESSURE ACCUMULATOR
Title (en)
METHOD FOR DETERMINING A POSITION OF A PISTON IN A PISTON PRESSURE ACCUMULATOR BY RESISTANCE MEASUREMENT AND SUITABLY DESIGNED PISTON PRESSURE ACCUMULATOR
Title (de)
VERFAHREN ZUM BESTIMMEN EINER POSITION EINES KOLBENS IN EINEM KOLBENDRUCKSPEICHER DURCH WIDERSTANDSMESSUNG SOWIE GEEIGNET AUSGEBILDETER KOLBENDRUCKSPEICHER
Title (fr)
PROCÉDÉ POUR DÉTERMINER UNE POSITION D'UN PISTON DANS UN ACCUMULATEUR DE PRESSION À PISTON PAR MESURE DE RÉSISTANCE AINSI QU'ACCUMULATEUR DE PRESSION À PISTON CONÇU DE MANIÈRE APPROPRIÉE
Publication
Application
Priority
- DE 102011090048 A 20111228
- EP 2012076932 W 20121227
Abstract (en)
[origin: WO2013098311A2] The invention relates to a method for determining a position of a piston (5) in a piston pressure accumulator (1) and a correspondingly designed piston pressure accumulator (1). A housing (3) accommodates a displaceable piston (5). An electrode arrangement (15) having a plurality of 4-point measurement electrode pairs (17) is provided on the electrically conductive housing (3) and is designed to determine a position of the piston (5) inside the housing (3) by measuring a distribution of an electrical resistance or potential between inner electrodes (21) when a current is applied to outer electrodes (19), depending on a position along the housing (3). The position of the piston determined from the measurement of the potential distribution can be used to determine or check a charge state of the piston pressure accumulator (1).
IPC 8 full level
F15B 1/24 (2006.01)
CPC (source: EP US)
F02F 3/00 (2013.01 - US); F15B 1/24 (2013.01 - EP US); G01M 15/06 (2013.01 - US); F15B 2201/31 (2013.01 - EP US); F15B 2201/515 (2013.01 - EP US)
Citation (search report)
See references of WO 2013098311A2
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)
WO 2013098311 A2 20130704; WO 2013098311 A3 20130822; BR 112014016016 A2 20170613; BR 112014016016 A8 20170704; CN 104024654 A 20140903; DE 102011090048 A1 20130704; EP 2798225 A2 20141105; JP 2015508478 A 20150319; KR 20140105607 A 20140901; RU 2014130909 A 20160220; US 2014352648 A1 20141204
DOCDB simple family (application)
EP 2012076932 W 20121227; BR 112014016016 A 20121227; CN 201280064727 A 20121227; DE 102011090048 A 20111228; EP 12816300 A 20121227; JP 2014549458 A 20121227; KR 20147020752 A 20121227; RU 2014130909 A 20121227; US 201214369724 A 20121227