Global Patent Index - EP 1444498 A2

EP 1444498 A2 20040811 - DEVICE AND METHOD FOR DETERMINING THE QUALITY A MEDIUM, PARTICULARLY OF A LUBRICANT AND/OR COOLANT

Title (en)

DEVICE AND METHOD FOR DETERMINING THE QUALITY A MEDIUM, PARTICULARLY OF A LUBRICANT AND/OR COOLANT

Title (de)

VORRICHTUNG UND VERFAHREN ZUR BESTIMMUNG DER QUALITÄT EINES FLUIDS, INSBESONDERE EINES SCHMIER-UND/ODER KÜHLMITTELS

Title (fr)

DISPOSITIF ET PROCEDE DE DETERMINATION DE LA QUALITE D'UNE SUBSTANCE, EN PARTICULIER D'UN LUBRIFIANT ET/OU D'UNE HUILE DE COUPE

Publication

EP 1444498 A2 20040811 (DE)

Application

EP 02802294 A 20021015

Priority

  • DE 10152777 A 20011029
  • EP 0211517 W 20021015

Abstract (en)

[origin: WO03038394A2] The invention relates to a device (1) for determining the quality a medium, particularly of a lubricant and/or cutting oil, comprising a number of sensors (3, 4, 5, 6, 7) that output an electric output signal according to the respective sensor-specific input variable. One sensor is a temperature sensor (7) that outputs an output signal, which is essentially only dependent on the temperature (T) of the medium and is essentially independent of, in particular, the quality of the medium. At least one other sensor (3, 4, 5, 6) outputs an output signal that is dependent on both the quality of the medium as well as the temperature (T) of the medium. The sensors (3, 4, 5, 6, 7) are placed on a shared substrate (2) that can be immersed in the medium. The invention also relates to an associated method.

IPC 1-7

G01N 1/00

IPC 8 full level

G01K 7/16 (2006.01); F01M 11/10 (2006.01); G01N 11/16 (2006.01); G01N 27/00 (2006.01); G01N 27/06 (2006.01); G01N 27/22 (2006.01); G01N 33/28 (2006.01); G01N 9/00 (2006.01); G01N 33/00 (2006.01)

CPC (source: EP KR US)

G01K 7/16 (2013.01 - KR); G01N 27/22 (2013.01 - KR); G01N 33/28 (2013.01 - KR); G01N 33/2888 (2013.01 - EP US); G01R 27/26 (2013.01 - KR); G01N 9/002 (2013.01 - EP US); G01N 11/16 (2013.01 - EP US); G01N 33/0032 (2013.01 - EP US); G01N 2291/02863 (2013.01 - EP US); G01N 2291/02881 (2013.01 - EP US)

Designated contracting state (EPC)

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

DOCDB simple family (publication)

WO 03038394 A2 20030508; WO 03038394 A3 20040325; AU 2002363262 A1 20030512; CN 1325912 C 20070711; CN 1578909 A 20050209; DE 10152777 A1 20030515; EP 1444498 A2 20040811; JP 2005507497 A 20050317; KR 100658387 B1 20061219; KR 20040062596 A 20040707; US 2004250606 A1 20041216; US 7104117 B2 20060912

DOCDB simple family (application)

EP 0211517 W 20021015; AU 2002363262 A 20021015; CN 02821613 A 20021015; DE 10152777 A 20011029; EP 02802294 A 20021015; JP 2003540615 A 20021015; KR 20047006407 A 20021015; US 49349604 A 20040422