Automotive engine exhaust aftertreatment system including hydroc

Details Automotive engine exhaust aftertreatment system including hydroc Automotive engine exhaust aftertreatment system including hydroc

1994-06-06

1995-05-30

Lazarus, Ira S.

Power plants

Internal combustion engine with treatment or handling of...

Methods

60276, 60285, 60288, F01N 320

Patent

active

054191246

ABSTRACT:
An automotive internal combustion engine is equipped with a hydrocarbon adsorber for the purpose of controlling the emissions of unburned hydrocarbons from the vehicle's tailpipe. Regeneration of the adsorber is achieved by an electronic engine controller operating an air pump and a sample pump, using information from an exhaust gas oxygen sensor.

REFERENCES:
patent: 3674441 (1972-07-01), Cole
patent: 5179833 (1993-01-01), Koroda et al.
patent: 5224347 (1993-07-01), Yakabe et al.
patent: 5251438 (1993-10-01), Ishida et al.
patent: 5253476 (1993-10-01), Levendis
patent: 5259189 (1993-11-01), Baier

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