Engine exhaust emission control system

Details Engine exhaust emission control system Engine exhaust emission control system

1993-08-20

1995-03-21

Lazarus, Ira S.

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

60297, 60311, F01N 320

Patent

active

053985036

ABSTRACT:
An engine exhaust emission control system, in which a valve is set at a hydrocarbon adsorbing position to guide exhaust emissions to a bypass line including an adsorbent sieve for adsorbing hydrocarbons during a initial period of engine start-up, and the valve is switched over to a hydrocarbon purging position to guide exhaust emissions to an exhaust line and to divert a part of the exhaust emissions to the bypass line.

REFERENCES:
patent: 4485621 (1984-12-01), Wong
patent: 4974414 (1990-12-01), Kono
patent: 5051244 (1991-09-01), Dunne
patent: 5067318 (1991-11-01), Arai
patent: 5090200 (1992-02-01), Arai
patent: 5125231 (1992-06-01), Patil
patent: 5140811 (1992-08-01), Minami
patent: 5195318 (1993-03-01), Shinzawa
SAE Technical Paper Series No. 920847, The Engineering Society for Advancing Mobility Land Sea Air and Space, International Congress & Exposition, Detroit, Mich., Feb. 24-28, 1992, Cold-Start Hydrocarbon Collection for Advanced Exhaust Emission Control, by Martin J. Heimrich and Lawrence R. Smith.

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