Exhaust system of a multi-cylinder internal combustion...

Details Exhaust system of a multi-cylinder internal combustion... Exhaust system of a multi-cylinder internal combustion...

2005-04-19

2005-04-19

Nguyen, Tu M. (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

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

C060S276000, C060S289000, C060S302000

Reexamination Certificate

active

06880328

ABSTRACT:
An exhaust system of a multi-cylinder internal combustion engine includes at least one first gas sensor, which is sensitive for at least one component of the exhaust gas and is arranged in the exhaust system, for determining an air/fuel ratio supplied to the internal combustion engine. It also includes a regulating device for regulating the air/fuel ratio as a function of a signal supplied by the gas sensor and at least one first catalytic converter arranged in the exhaust system. At least one first catalytic converter is arranged in a position of the exhaust system close to the internal combustion engine so that it is upstream from the at least one first gas sensor in the direction of flow of an exhaust gas of the internal combustion engine, and the regulation device includes a regulator which receives the signal of the first gas sensor as input, and in which an algorithm for cylinder-selective determination and regulation of the air/fuel ratio is stored.

REFERENCES:
patent: 5388402 (1995-02-01), Aoki et al.
patent: 5388403 (1995-02-01), Nagami et al.
patent: 5577383 (1996-11-01), Kuroda et al.
patent: 5755094 (1998-05-01), Maki et al.
patent: 5867982 (1999-02-01), Tengblad et al.
patent: 6044644 (2000-04-01), Hu et al.
patent: 6244044 (2001-06-01), Bartley

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