System and method for operating an engine having an exhaust...

Details System and method for operating an engine having an exhaust... System and method for operating an engine having an exhaust...

2007-10-23

2007-10-23

Denion, Thomas (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

Having sensor or indicator of malfunction, unsafeness, or...

C060S274000, C060S278000, C060S285000, C060S297000, C060S311000

Reexamination Certificate

active

11238969

ABSTRACT:
In an apparatus having an internal combustion engine, a compressor for compressing engine intake gases, a particulate filter for filtering particulate matter from engine exhaust, an exhaust gas recirculation (EGR) system for recirculating exhaust gases from a location downstream of the particulate filter to a location upstream of the compressor, and a particulate filter function detector configured to detect a failure of the particulate filter, a method of operating the engine, including receiving a signal from the particulate filter function detector, comparing the signal from the particulate filter function detector to a predetermined signal threshold, determining if the signal received from the particulate filter function detector meets a predetermined condition relative to the predetermined signal threshold; and reducing a flow of exhaust gas through the EGR system if the signal meets the predetermined condition.

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patent: 2004/0093866 (2004-05-01), Ishikawa
patent: 1156202 (2001-11-01), None

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