Method and arrangement for controlling the fuel for an internal

Details Method and arrangement for controlling the fuel for an internal Method and arrangement for controlling the fuel for an internal

1991-01-22

1993-05-04

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Methods

60276, 60285, 123691, 123696, F01N 320

Patent

active

052070565

ABSTRACT:
The arrangement according to the invention permits the optimal control of the air/fuel ratio of an air/fuel mixture supplied to an internal combustion engine while considering the gas storage capability of a catalyzer. The degree of conversion of the catalyzer is dependent upon the oxygen content of the exhaust gas which is available. Since this degree of conversion is partially influenced by the oxygen given off by the catalyzer, a targeted enrichment or leaning of the air/fuel ratio can optimize the degree of conversion of the catalyzer.

REFERENCES:
patent: 3875907 (1975-04-01), Wessel
patent: 4140086 (1979-02-01), Schnurle
patent: 4231334 (1980-11-01), Peter
patent: 4235204 (1980-11-01), Rice
patent: 4251989 (1981-02-01), Norimatsu
patent: 4779414 (1988-10-01), Nagai

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