About 43 results
https://drivepatents.com/patents/1080781 · 12 Jan 2005
A combustion control apparatus for an internal combustion engine, including an exhaust gas purifier, and a control unit programmed to selectively implement a first combustion mode and a second combustion mode, the second combustion mode providing main comb...
https://drivepatents.com/patents/1082335 · 17 Nov 2004
Two lambda sensors (6, 7) are located at equal distances downstream of the nitrogen oxides (NOx) trap (3) in the exhaust line (2). One lambda sensor has a rhodium-based catalytic layer. Their output signals are connected to a differential measurement syste...
https://drivepatents.com/patents/1086638 · 9 Jun 2004
An exhaust passageway (5) of an engine (1) is provided with a NOx storage-reduction catalyst (20) for trapping and storing NOx from an exhaust gas lean of a stoichiometric air-fuel ratio. When the storage of the NOx in the catalyst (20) becomes large, the ...
https://drivepatents.com/patents/1086633 · 9 Jun 2004
Process for operating a direct-injection I.C. engine, especially a direct-injection Otto engine, involves feeding a predetermined exhaust gas amount from the exhaust gas back into the intake air. During operation of the engine with a high load and revoluti...
https://drivepatents.com/patents/1090205 · 21 Jan 2004
A means (16) is provided for delaying combustion in the engine (1) and a control system (11, 15) is provided for activating the combustion delay means during the regeneration of the filter (5). The engine includes branches formed by an intake air collector...
https://drivepatents.com/patents/1091601 · 26 Nov 2003
Removal of poisoning substance (sulfur oxidant) is controlled based upon estimating an amount of the poisoning substance deposited in an exhaust gas purification catalyst (5) disposed in an exhaust pipe (9) for an internal combustion engine (1), a lower li...
https://drivepatents.com/patents/1096180 · 7 May 2003
A low NOx combustion mode is executed in which the fuel injection timing IT is greatly advanced to 36 DEG BTDC as compared with a normal value of roughly 10 DEG BTDC. At this fuel injection timing IT, the smoke emission amount is suppressed below an extrem...
https://drivepatents.com/patents/1098667 · 29 Jan 2003
A control device of an internal combustion engine (1) which is equipped with an exhaust system including an exhaust purification device (11) purifying exhaust gas, and which performs a recovery process for recovering purification capability of the exhaust ...
https://drivepatents.com/patents/1099403 · 2 Jan 2003
An exhaust gas purifying apparatus comprises a control unit (29) operative to estimate an amount of NOx absorbed by a NOx trap material (17) disposed in an exhaust passage (10) and to make an air-fuel ratio richer so as thereby to cause the NOx trap materi...
https://drivepatents.com/patents/1099364 · 2 Jan 2003
An air-fuel ratio control system for an internal combustion engine provided with a NOx trap catalyst which is disposed in an exhaust gas passageway and arranged to trap NOx when the air-fuel ratio of exhaust gas flowing to the NOx trap catalyst is lean and...