Prevention of overheating of catalytic converter for engine exha

Details Prevention of overheating of catalytic converter for engine exha Prevention of overheating of catalytic converter for engine exha

1976-05-06

1978-08-08

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

123 97B, 123117A, 123119D, 123124B, F02B 7510

Patent

active

041048814

ABSTRACT:
Overheating of a catalytic converter receiving exhaust gases from an internal combustion engine is minimized by providing an air-fuel mixture leaner than the stoichiometric ratio for combustion in the engine, maintaining the exhaust gases in an exhaust reaction chamber at relatively high temperature for a relatively long time period before conveying them to the catalytic converter, sensing deceleration conditions in the engine as a function of increase in intake vacuum intensity, and retarding the spark ignition timing and introducing supplemental air for combustion upon increase in vacuum intensity.

REFERENCES:
patent: 3577727 (1971-05-01), Warren
patent: 3590793 (1971-07-01), Masaki
patent: 3744464 (1973-07-01), Soltau
patent: 3768787 (1973-10-01), Marsee
patent: 3826089 (1974-07-01), Nakajima
patent: 3982507 (1976-09-01), Asaka
patent: 3982513 (1976-09-01), Nakagawa
patent: 3994268 (1976-11-01), Okunishi

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