EP 2715134 A2 20140409 - METHOD AND DEVICE FOR DETERMINATION OF GAS IN A LIQUID PUMPED THROUGH A PUMPING DEVICE
Title (en)
METHOD AND DEVICE FOR DETERMINATION OF GAS IN A LIQUID PUMPED THROUGH A PUMPING DEVICE
Title (de)
VERFAHREN UND VORRICHTUNG ZUR BESTIMMUNG VON GAS IN EINER DURCH EINE PUMPVORRICHTUNG GEPUMPTEN FLÜSSIGKEIT
Title (fr)
PROCÉDÉ ET DISPOSITIF POUR DÉTERMINER LA PROPORTION D'UN GAZ DANS UN LIQUIDE POMPÉ PAR UN DISPOSITIF DE POMPAGE
Publication
Application
Priority
- DE 102011105824 A 20110527
- US 201161491437 P 20110531
- EP 2012002201 W 20120523
Abstract (en)
[origin: DE102011105824B3] The method involves conveying mixture of gas and liquid by a pump i.e. piston diaphragm pump (10), where the mixture is subjected to volume- and pressure change. Operational parameters of the pump are detected, and gas concentration is determined from the parameters under consideration of system compressibility. The compressibility in the pump is determined by regulating start pressure, receiving pump position und pressure sensor value and determining spring rate based on value pairs and identical sets of the determined spring rate with system compressibility.
IPC 8 full level
F04B 43/067 (2006.01)
CPC (source: EP US)
A61M 5/16809 (2013.01 - EP US); F04B 49/08 (2013.01 - EP US); G01N 7/00 (2013.01 - EP US); F04B 2205/01 (2013.01 - EP US); F04B 2205/03 (2013.01 - EP US); F04B 2205/05 (2013.01 - EP US)
Citation (search report)
See references of WO 2012163497A2
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 102011105824 B3 20120531; CN 103443610 A 20131211; CN 103443610 B 20151125; EP 2715134 A2 20140409; JP 2014516697 A 20140717; JP 6195825 B2 20170913; US 2012302945 A1 20121129; WO 2012163497 A2 20121206; WO 2012163497 A3 20130829
DOCDB simple family (application)
DE 102011105824 A 20110527; CN 201280015184 A 20120523; EP 12723617 A 20120523; EP 2012002201 W 20120523; JP 2014511770 A 20120523; US 201213478382 A 20120523