Power plants – Internal combustion engine with treatment or handling of... – Methods
Patent
1993-07-09
1995-08-29
Hart, Douglas
Power plants
Internal combustion engine with treatment or handling of...
Methods
60276, 60277, 731181, F01N 320
Patent
active
054449740
ABSTRACT:
A calorimetric sensor comprising closely spaced, similarly constructed catalyzed (oxidation catalyst) and uncatalyzed members can be placed in the exhaust gas stream of an automotive engine downstream of a catalytic converter to aid assessment of the efficacy of the converter, especially when the exhaust is hot and at an appreciable steady flow rate and the engine is operating at the stoichiometric air-to-fuel ratio or lean of such ratio.
REFERENCES:
patent: 4157282 (1979-06-01), Riddel
patent: 4157948 (1979-06-01), Maurer
patent: 4190499 (1980-02-01), Pebler
patent: 4428817 (1984-01-01), Isenberg
patent: 4495793 (1985-01-01), Hager
patent: 4663017 (1987-05-01), Ross
patent: 4828673 (1989-05-01), Maeda
patent: 5177464 (1993-01-01), Hamburg
patent: 5265417 (1993-11-01), Visser
Clemmens et al., "Detection of Catalyst Performance Loss Using On-Board Diagnostics", SAE Paper 900062.
Cai et al., "Unburnt Hydrocarbon Measurement by Means of a Surface Ionisation Detector", SAE Paper 910254.
Koupal et al., "Detection of Catalyst Failure On-Vehicle Using the Dual Oxygen Sensor Method", SAE Paper 910561.
Kotzan, "On-Board Diagnostics for Emission Control Systems", SAE Paper 911215.
Bogdanoff et al., "Overview of On-Board Diagnostic Systems Used on 1991 California Vehicles", SAE Paper 912433.
Hepburn et al., "The Relationship Between Catalyst Hydrocarbon Conversion Efficiency and Oxygen Storage Capacity", SAE Paper 920831.
Cai et al., "A Catalytic Oxidation Sensor for the On Board Detection of Misfire and Catalyst Efficiency", SAE Paper 922248.
Beck Donald D.
Doraswamy Jayanthi
Lecea Oscar A.
General Motors Corporation
Grove George A.
Hart Douglas
LandOfFree
On-board automotive exhaust catalyst monitoring with a calorimet does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with On-board automotive exhaust catalyst monitoring with a calorimet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On-board automotive exhaust catalyst monitoring with a calorimet will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1812269