Exhaust gas-purifying system for internal combustion engines

Details Exhaust gas-purifying system for internal combustion engines Exhaust gas-purifying system for internal combustion engines

1995-02-24

1996-02-27

Lazarus, Ira S.

Power plants

Internal combustion engine with treatment or handling of...

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

60289, 60312, 60324, F01N 318

Patent

active

054938570

ABSTRACT:
An exhaust gas-purging system for an internal combustion engine includes a catalyst arranged in an exhaust passage of the engine, for purifying exhaust gases emitted from the engine. The system detects an engine operating condition and a catalyst temperature parameter indicative of the temperature of the catalyst. The supply of secondary air to the exhaust passage and the flow path cross-sectional area of the exhaust passage are controlled based on at least one of the operating condition of the engine and the catalyst temperature parameter.

REFERENCES:
patent: 5014817 (1991-05-01), Takato et al.
patent: 5293741 (1994-03-01), Kashiyama et al.
patent: 5355673 (1994-10-01), Sterling et al.
patent: 5372109 (1994-12-01), Thompson et al.
patent: 5388402 (1995-02-01), Aoki et al.
patent: 5390488 (1995-02-01), Ament et al.

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