Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing gas sample
Patent
1995-11-13
1998-03-31
Bhat, Nina
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing gas sample
422 98, 422107, 422110, 204291, 204424, 204428, 60276, 60285, G01N 700, G01N 2726, G05D 700, F01N 300
Patent
active
057335044
ABSTRACT:
The invention includes the use of a pre-equilibration zone on an exhaust gas sensor to provide catalytic site to catalyze non-reacted components of the exhaust gas prior to the gas sample reaching the sensor's outer electrode. The pre-equilibration zone has microcomposite which preferably includes a precious metal in a porous carrier such as a ceramic oxide. The invention also includes a method of making an exhaust sensor including a pre-equilibration zone, and a method of sampling an exhaust gas by passing the same through a pre-equilibration zone.
REFERENCES:
patent: 3935089 (1976-01-01), Togawa et al.
patent: 4199425 (1980-04-01), Sinkevitch
patent: 4240890 (1980-12-01), Watanabe et al.
patent: 4249156 (1981-02-01), Micheli
patent: 4279782 (1981-07-01), Chapman et al.
patent: 4297192 (1981-10-01), Shinohara et al.
patent: 4307061 (1981-12-01), Serholz
patent: 4318828 (1982-03-01), Chapman
patent: 4331631 (1982-05-01), Chapman et al.
patent: 4382323 (1983-05-01), Chapman et al.
patent: 4394301 (1983-07-01), Gardner
patent: 4507397 (1985-03-01), Buss
patent: 4552739 (1985-11-01), Kuhl
patent: 4704494 (1987-11-01), Inji
patent: 4832824 (1989-05-01), Vaughan et al.
patent: 4863583 (1989-09-01), Kurachi et al.
patent: 4888105 (1989-12-01), Huss, Jr. et al.
patent: 4950828 (1990-08-01), Shum
patent: 5077970 (1992-01-01), Hamburg
patent: 5083427 (1992-01-01), Anderson
patent: 5169513 (1992-12-01), Mase et al.
Keiichi Saji et al., "Voltage step characteristics of oxygen concentration cell sensors for nonequilibrium gas mixtures"--Toyota Central Research and Development Laboratories, Inc., Nagakute-cho, Aichi-gun, Aichi, 480-11 Japan, vol. 135, No. 7; pp. 1686-1691.
A.D. Colvin et al, "Catalytic effects on ZrO.sub.2 oxygen sensors exposed to non-equilibrium gas mixtures"--J. Electroanal. Chem., 136 (1982) 179-183.
J.E. Anderson et al., "Mass transfer effects on ZrO.sub.2 oxygen concentration cells exposed to non-equilibrium H.sub.2 -O.sub.2 mixtures"-- Journal of Applied Electrochemistry 12 (1982) 463-467.
Patent Abstracts of Japan vol. 13 No. 314 (P-899) 18 Jul. 1989 & JP-A-01 083 149 (Japan Electronic Control Syst. Co) 28 Mar. 198 *abstract*.
Patent Abstract of Japan vol. 4 No. 43 (P-005) 4 Apr. 1980 & JP-A-55 013 828 (Toyota Motor Corp) 31 Jan. 1980 *abstract.
Patent Abstract of Japan vol. 6 No. 188 (P-144) (1066) 28 Sep. 1982 & JP-A-57 100 343 (Toyota Jidosha Kogyo K.K.) 22 Jun. 1982 *abstract*.
European Search Report corres to EP 95 20 0124 dated 18 May 1995 & Annex.
G. Baier et al, "Non-Nernstian Zirconia Sensors for Combuation Control", Appl.Phys. A57, 51-66 (1993).
J.E. Enderson et al, "Steady-State Characteristics of Oxygen Concentration Cell Sensors Subjected to Nonequilibrium Gas Mixtures", J Electrochem Soc vol. 128 No. 3 Feb. 1981 pp. 294-300.
L. Eltinge, "Fuel-Air Ratio and Distribution from Exhaust Gas Composition", SAE Paper 680114 pp. 425-450.
Lankheet Earl Wayne
Paulus Nancy Jean
Paulus William John
Rajagopalan Venkatesh
Bhat Nina
Brooks Cary W.
General Motors Corporation
LandOfFree
Catalytic/ceramic oxide microcomposites for use as exhaust senso does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Catalytic/ceramic oxide microcomposites for use as exhaust senso, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catalytic/ceramic oxide microcomposites for use as exhaust senso will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-48757