EP 0149606 A4 19860107 - EXTENDED RANGE AIR FUEL RATIO SENSOR.
Title (en)
EXTENDED RANGE AIR FUEL RATIO SENSOR.
Title (de)
SENSOR EINES AUSGEDEHNTEN LUFT/BRENNSTOFFVERHÄLTNISSES.
Title (fr)
DETECTEUR DE RAPPORT AIR/CARBURANT A PLAGE ETENDUE.
Publication
Application
Priority
US 8301083 W 19830715
Abstract (en)
[origin: WO8500658A1] An exhaust gas oxygen sensor (110) for determining an exhaust gas, air fuel ratio over a wide range of values, including those richer than, leaner than, and near the stoichiometric air fuel value, includes a first (111) and a second (121) electrochemical cell. The two electrochemical cells are spaced from one another and define therebetween a partially enclosed volume. The volume is in communication with the exhaust gases through an opening (126). A first side of each of the first and second electrochemical cells is exposed to the volume. A second side of the first electrochemical cell (111) is exposed to the exhaust gases. A second side of the second electrochemical cell is exposed to a reference atmosphere.
IPC 1-7
IPC 8 full level
G01N 27/409 (2006.01); G01N 27/27 (2006.01); G01N 27/407 (2006.01); G01N 27/417 (2006.01)
CPC (source: EP)
G01N 27/417 (2013.01)
Citation (search report)
- [X] GB 2097541 A 19821103 - FORD MOTOR CO
- [A] EP 0057899 A2 19820818 - HITACHI LTD [JP]
- [A] US 3699032 A 19721017 - RAPP ROBERT ANTHONY
- [A] US 3650934 A 19720321 - HICKAM WILLIAM M, et al
- [X] ANALYTICAL CHEMISTRY, vol. 49, no. 12, October 1977, pages 1813-1817, US; D.M. HAALAND: "Internal-reference solid-electrolyte oxygen sensor"
- See references of WO 8500658A1
Designated contracting state (EPC)
DE GB NL
DOCDB simple family (publication)
WO 8500658 A1 19850214; EP 0149606 A1 19850731; EP 0149606 A4 19860107; JP S60501873 A 19851031
DOCDB simple family (application)
US 8301083 W 19830715; EP 83903020 A 19830715; JP 50311683 A 19830715