Method of reducing emission of pollutants from multi-cylinder en

Details Method of reducing emission of pollutants from multi-cylinder en Method of reducing emission of pollutants from multi-cylinder en

1975-10-10

1977-07-19

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Methods

60282, 123119DB, 123124R, F02B 7510, F02M 2304

Patent

active

040360148

ABSTRACT:
NOx concentration in the exhaust gas is reduced by supplying an extremely rich air-fuel mixture to half of the cylinders and an extremely lean mixture to the remaining cylinders. HC and CO in the exhaust are oxidized in a reactor due to existence of excess air left after combustion of the lean mixture.

REFERENCES:
patent: 2152028 (1939-03-01), Church
patent: 3023745 (1962-03-01), Barnes
patent: 3578116 (1971-05-01), Nakajima
patent: 3708980 (1973-01-01), Truxell
patent: 3756027 (1973-09-01), Gotoh
patent: 3827237 (1974-08-01), Linder

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