Global Patent Index - EP 1697735 A1

EP 1697735 A1 20060906 - METHOD AND DEVICE FOR ELECTRICALLY TESTING FUELS AND COMBUSTIBLES BY GENERATING A PLASMA

Title (en)

METHOD AND DEVICE FOR ELECTRICALLY TESTING FUELS AND COMBUSTIBLES BY GENERATING A PLASMA

Title (de)

VERFAHREN UND VORRICHTUNG ZUR ELEKTRISCHEN PRÜFUNG VON KRAFTSTOFFEN UND BRENNSTOFFEN UNTER EINES PLASMAS

Title (fr)

PROCEDE ET DISPOSITIF DE CONTROLE ELECTRIQUE DE CARBURANTS ET DE COMBUSTIBLES, PAR GENERATION D'UN PLASMA

Publication

EP 1697735 A1 20060906 (DE)

Application

EP 04804544 A 20041119

Priority

  • EP 2004053022 W 20041119
  • CH 21412003 A 20031215
  • CH 21782003 A 20031218

Abstract (en)

[origin: WO2005057202A1] The invention relates to a method for testing liquid and gaseous fuels and combustibles in general and testing the erosivity of low-sulfur combustibles in particular. According to said method, a plasma is formed with the combustible or fuel, and the electrical behavior of the plasma is measured. The more electrical the plasma of an untreated charge of combustible or fuel behaves, the less risk-prone is the combustible or fuel regarding erosivity. The conductivity of the plasma can be increased or lowered by adding additives in order to obtain an unproblematic fuel or combustible. The measured values of the voltage peaks of the half-wave of an alternating voltage applied to the plasma of combustibles and fuels that are treated by means of additives must be lower or significantly greater than the measured values of a combustible or fuel which is unproblematic already in an untreated state, said half-wave being inverted by the plasma. Advantageously, the average maximum values of both half-waves are taken into account for assessing the erosivity of a combustible.

IPC 8 full level

G01N 27/68 (2006.01); G01N 17/00 (2006.01); G01N 27/28 (2006.01); G01N 27/70 (2006.01); G01N 33/22 (2006.01); G01N 31/12 (2006.01)

CPC (source: EP US)

G01N 27/70 (2013.01 - EP US); G01N 33/2817 (2013.01 - EP US); G01N 31/12 (2013.01 - EP US)

Citation (search report)

See references of WO 2005057202A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LU MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2005057202 A1 20050623; EP 1697735 A1 20060906; US 2007172959 A1 20070726

DOCDB simple family (application)

EP 2004053022 W 20041119; EP 04804544 A 20041119; US 58341804 A 20041119