Patent ID: 7021050

Claim:
An engine exhaust particulate after-treatment system comprising: exhaust particulate trapping means provided in an exhaust path of an engine for trapping particles in exhaust gases; exhaust particulate amount detecting means for directly or indirectly detecting the amount of exhaust particulate trapped by the exhaust particulate trapping means; regeneration means for removing exhaust particulates trapped by the exhaust particulate trapping means by burning when the amount of exhaust particulate detected by the exhaust particulate amount detecting means reaches a predetermined value; deceleration detecting means for detecting a deceleration condition of the engine; and exhaust flow rate increase means for increasing, as compared to a non-removal process, the flow rate of exhaust gases flowing into the exhaust particular trapping means, when a deceleration condition of the engine is detected by the deceleration detecting means during the removal by burning of exhaust particulates by the regeneration means.