About 147 results
https://drivepatents.com/patents/1090161 · 21 Jan 2004
An exhaust particulate trapping means (12) for trapping particulates in exhaust gases is provided in an exhaust path (3) of an engine (1). When the engine (1) enters a deceleration condition during the removal by burning of exhaust particulates trapped by ...
https://drivepatents.com/patents/1090505 · 14 Jan 2004
An engine control apparatus comprises : a NO x trap located in the exhaust passage of a multi-cylinder engine ; a catalytic converter located in said exhaust passage upstream of said NO x trap, the catalytic converter having a lower oxygen storage capacity...
https://drivepatents.com/patents/1091025 · 7 Jan 2004
An engine control apparatus comprises €ƒ€ƒ€ƒ a NO x trap (32) located in the exhaust passage of a multi-cylinder engine (18), the NO x trap (32) having an oxygen storage capacity; €ƒ€ƒ€ƒ a catalytic converter (26) located in said exhaust ...
https://drivepatents.com/patents/1091554 · 26 Nov 2003
Process for controlling a nitrogen oxides storage catalyst in an internal combustion engine comprises evaluating the actual catalyst behavior with respect to oxygen storage of the oxygen-containing component in the catalyst coating at the start of the rege...
https://drivepatents.com/patents/1091557 · 26 Nov 2003
A first object of the invention is to reduce an exhaust gas in a lean burn area which is expanded by a supercharging, in a direct gasoline injection type internal combustion engine provided with a turbocharger. A second object of the invention is to preven...
https://drivepatents.com/patents/1091562 · 26 Nov 2003
The system includes a inlet for fresh air (4), and an outlet for exhaust gases (5) for recycling in the engine (1), delivered by a corresponding bleed circuit (7). There are units (8) for opening and closing itself, on the exhaust line (3) of the engine, h...
https://drivepatents.com/patents/1092577 · 15 Oct 2003
The apparatus improves regeneration efficiency of a diesel particulate filter that traps particulate matter, reduces pressure loss caused by the filter, and benefits space of a vehicle. Therefor, the DPF (11) that traps particulate matter having a large di...
https://drivepatents.com/patents/1092690 · 15 Oct 2003
An NOx occluding and reducing catalyst (7) is disposed in an exhaust gas passage (2) of an internal combustion engine (1) to absorb NOx in the exhaust gas when the air-fuel ratio of the exhaust gas is lean, and to release and reduce the absorbed NOx when t...
https://drivepatents.com/patents/1092589 · 15 Oct 2003
A particulate deposit amount Spm on a particulate filter (3) disposed in an exhaust passage (17) is estimated during a usual period other than a regeneration period of the particulate filter (3) and during the regeneration period thereof respectively. An i...
https://drivepatents.com/patents/1092747 · 8 Oct 2003
A HC adsorption type three-way catalytic converter (13) is arranged in an exhaust gas passage of a diesel engine (1) at a position upstream of an exhaust gas purifying device (15,14) constituted of at least one of a diesel particulate filter (15) and a NOx...