Internal combustion engine exhaust gas purifying system

Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...

Reexamination Certificate

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Details

C060S274000, C060S285000, C060S297000, C060S311000

Reexamination Certificate

active

10658259

ABSTRACT:
An internal combustion engine exhaust gas purifying system (10) having a continuous regenerating diesel particulate filter system (3) on the exhaust passage (2) of an internal combustion engine (1) is constituted by including collected-quantity estimation means (5A) for estimating the quantity of collected particulate matter in a filter (3b) of the filter system for collecting the particulate matter and maximum-fuel-injection-quantity restricting means (5C) for restricting the maximum fuel injection quantity of the internal combustion engine (1) when the quantity of collected particulate matter estimated by the collected-quantity estimation means (51A) is equal to or more than a predetermined judgment value.Thereby, when the quantity of deposited particulate matter exceeds a predetermined value in the continuous regenerating DPF system (3), it is possible to prevent the continuous regenerating DPF system (1) from deteriorating by restricting the maximum fuel injection quantity of the internal combustion engine (1) and avoiding a great increase of an exhaust gas quantity.

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patent: 4902487 (1990-02-01), Cooper et al.
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patent: 5746989 (1998-05-01), Murachi et al.
patent: 6594990 (2003-07-01), Kuenstler et al.
patent: 2004/0123584 (2004-07-01), Schaller
patent: 2002-180816 (2002-06-01), None
patent: 2002-195086 (2002-07-01), None
patent: 2002-106327 (2002-10-01), None

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