Power plants – Internal combustion engine with treatment or handling of... – Having means analyzing composition of exhaust gas
Patent
1975-11-12
1978-08-22
Hart, Douglas
Power plants
Internal combustion engine with treatment or handling of...
Having means analyzing composition of exhaust gas
123119EC, F02B 7510
Patent
active
041079205
ABSTRACT:
A method of and apparatus for controlling the air-to-fuel ratio of a combustible mixture in an internal combustion engine of the particular type using mixture control means arranged to regulate the air-to-fuel mixture within a predetermined relatively high range for the purpose of enabling an exhaust cleaning catalytic reactor to perform its maximum function, characterized in that the air-to-fuel ratio is reduced, viz., the mixture is enriched during highly loaded operational conditions of the engine by supplying additional fuel to the mixture supply system of the engine, temporarily disabling the mixture control means during such conditions or diluting the exhaust gases during high load conditions of the engine so that the control means is caused to operate in such a manner as to compensate for the reduced concentration of air in the exhaust gases.
REFERENCES:
patent: 3745768 (1973-07-01), Zechnall
patent: 3828749 (1974-08-01), Knapp
patent: 3861366 (1975-01-01), Masaki
patent: 3906910 (1975-09-01), Szlaga
patent: 3921612 (1975-11-01), Aono
patent: 3939654 (1976-02-01), Creps
patent: 3949551 (1976-04-01), Eichler
patent: 3961477 (1976-06-01), Grieshaber
patent: 3963009 (1976-06-01), Mennesson
Ikeura Kenji
Minami Hidehiro
Shioyama Giichi
Adams Bruce L.
Burns Robert E.
Hart Douglas
Lobato Emmanuel J.
Nissan Motor Company Limited
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