Power plants – Internal combustion engine with treatment or handling of... – Methods
Patent
1995-12-26
1999-09-14
Hart, Douglas
Power plants
Internal combustion engine with treatment or handling of...
Methods
60276, 60284, 60285, F01N 300
Patent
active
059504196
ABSTRACT:
Exhaust gas temperature is raised after a cold engine start so as to rapidly activate a catalyst in an exhaust line by retarding an ignition timing at which an air-fuel mixture is fired in the engine to a point after top-dead-center during a certain time interval and promoting combustion of the air-fuel mixture, thereby accelerating the catalyst to attain its effective activation temperature after the cold engine start as quickly as possibly.
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Misumi Masanori
Morimasa Takanobu
Nakazumi Tadataka
Nishimura Hirofumi
Umehara Ken
Hart Douglas
Mazda Motor Corporation
Studebaker Donald R.
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