Chemistry: electrical and wave energy – Apparatus – Electrolytic
Reexamination Certificate
2006-04-07
2010-12-14
Bell, Bruce F (Department: 1795)
Chemistry: electrical and wave energy
Apparatus
Electrolytic
C204S426000, C204S427000, C204S429000, C123S691000, C123S693000, C123S697000, C123S703000, C123S406230, C123S406450, C123S406480, C073S023320, C060S276000, C060S285000
Reexamination Certificate
active
07850833
ABSTRACT:
An oxygen sensor generating an accurate output concerning low-concentration exhaust gas positioned downstream of a three-way catalyst. The oxygen sensor includes an exhaust gas side electrode exposed to an exhaust gas; a reference gas side electrode exposed to a reference gas serving as a reference for oxygen concentration; and an electrolyte positioned between the exhaust gas side electrode and the reference gas side electrode. Further, a reduction mechanism positioned toward a front surface of the exhaust gas side electrode ensures the ratio of the amount of exhaust gas introduced to the exhaust gas side electrode to the amount of an exhaust gas flow to the outside of the oxygen sensor is smaller than the ratio of the amount of exhaust gas introduced to an electrode for the air-fuel ratio sensor to the amount of an exhaust gas flow to the outside of the air-fuel ratio sensor.
REFERENCES:
patent: 6182498 (2001-02-01), Mizutani et al.
patent: 2001/0054553 (2001-12-01), Isomura et al.
patent: 2002/0060152 (2002-05-01), Hotta et al.
patent: 2002/0102347 (2002-08-01), Clyde et al.
patent: 2003/0075440 (2003-04-01), Jain et al.
patent: 2003/0209433 (2003-11-01), LaBarge et al.
patent: 2004/0117974 (2004-06-01), Clyde et al.
patent: 2006/0021325 (2006-02-01), Ikemoto et al.
patent: 1438412 (2003-08-01), None
patent: 7 197837 (1995-08-01), None
patent: 9 189679 (1997-07-01), None
patent: 10 306742 (1998-11-01), None
patent: 11 237361 (1999-08-01), None
patent: 2002 181769 (2002-06-01), None
patent: 2004 301579 (2004-10-01), None
Bell Bruce F
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Toyota Jidosha & Kabushiki Kaisha
LandOfFree
Oxygen sensor and air/fuel ratio control system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Oxygen sensor and air/fuel ratio control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oxygen sensor and air/fuel ratio control system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4235131