Power plants – Internal combustion engine with treatment or handling of... – Methods
Patent
1978-07-28
1980-07-01
Hart, Douglas
Power plants
Internal combustion engine with treatment or handling of...
Methods
60277, 60284, 60285, 60286, 60289, F01N 314
Patent
active
042099811
ABSTRACT:
The temperature of an exhaust gas purifying device is maintained within an optimum range by enriching an air-fuel mixture for the engine, retarding the ignition timing of the engine, supplying secondary air into engine exhaust gases fed to the purifying device and producing a spark therein when the temperature of the purifying device is below the minimum of the optimum range and by diluting the air-fuel mixture, advancing the engine ignition timing to a normal value, stopping supply of the secondary air and production of the spark when the temperature of the purifying device is higher than the maximum of the optimum range.
REFERENCES:
patent: 3086353 (1963-04-01), Ridgway
patent: 3306033 (1967-02-01), Cornelius
patent: 3807172 (1974-04-01), Masaki
patent: 3906910 (1975-09-01), Szlaga
patent: 3979905 (1976-09-01), Masaki
patent: 4023359 (1977-05-01), Masaki
Masaki Kenji
Miyamori Yukio
Adams Bruce L.
Burns Robert E.
Hart Douglas
Lobato Emmanuel J.
Nissan Motor Company Limited
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